{
  "snapshot_id": "approved-static-bb6d69cd3c074ae2",
  "schema_version": "immigrationdb-report-dataset-v1",
  "generated_at": "2026-08-04",
  "report": {
    "schema_version": "immigrationdb-generated-report-v1",
    "canonical_slug": "cities-with-the-mildest-winters",
    "canonical_path": "/reports/cities-with-the-mildest-winters/",
    "title": "Cities with the mildest winters",
    "question": "Cities with the mildest winters",
    "short_answer": "Darwin, Australia is first in the current published ranking at 19.3 °C; compare its source date and geographic grain before using the result.",
    "summary": "The coldest month of each city's published monthly normals, ranked warmest first. This is an average night-time low for that month, not the coldest night on record.",
    "report_type": "data_driven_report",
    "scope": "multi-country cities",
    "status": "accepted",
    "indexability": "indexable",
    "not_advice_disclaimer": "This ranking is a source-backed reference. Read the source, geographic grain and observation date before comparing rows.",
    "methodology_id": "methodology-cities-with-the-mildest-winters-v1",
    "methodology": {
      "summary": "Every row is a published  observation measured in °C, ranked highest first. The values were observed between 1991 and 2020. A place appears only when it publishes this exact metric, so an absent place means missing data rather than a low value.",
      "formula": " desc",
      "assumptions": [
        "Source definitions, geographic grain and observation period remain visible for every row."
      ],
      "exclusions": [
        "Supplemental sources, null values, incompatible units and rows without direct source URLs are excluded."
      ],
      "source_policy": "Verified sources with direct URL and visible scope"
    },
    "freshness": {
      "last_checked": "2026-07-31",
      "status": "generated_from_current_reusable_facts",
      "field_dates_visible": true
    },
    "rows": [
      {
        "row_id": "cities-with-the-mildest-winters:city:au:abs_sua:7002",
        "label": "Darwin, Australia",
        "canonical_path": "/cities/au/darwin/",
        "country_code": "AU",
        "value": 19.3,
        "value_display": "19.3 °C",
        "unit": "°c",
        "geographic_grain": "city",
        "observation_period": "2020-12-31",
        "derivation": "Coldest of the twelve published monthly values of climate_monthly_low_c",
        "status": "accepted",
        "metric_id": "climate_coldest_month_low_c_derived",
        "source_quality": "verified",
        "source_ids": [
          "source-68afb8426b96"
        ],
        "evidence": [
          {
            "source_id": "source-68afb8426b96",
            "url": "https://www.bom.gov.au/jsp/ncc/cdio/cvg/av?p_stn_num=014015&p_prim_element_index=0&p_comp_element_index=0&normals_years=1991-2020&p_display_type=full_statistics_table",
            "locator": "climate_coldest_month_low_c_derived; geographic grain: city",
            "retrieved_at": "2026-07-26"
          }
        ]
      },
      {
        "row_id": "cities-with-the-mildest-winters:us-place-1236550",
        "label": "Key West, United States",
        "canonical_path": "/cities/us/key-west/",
        "country_code": "US",
        "value": 18.6,
        "value_display": "18.6 °C",
        "unit": "°c",
        "geographic_grain": "nearest_station",
        "observation_period": "1991-12-31",
        "derivation": "Coldest of the twelve published monthly values of climate_monthly_low_c",
        "status": "accepted",
        "metric_id": "climate_coldest_month_low_c_derived",
        "source_quality": "verified",
        "source_ids": [
          "task-631-round2-2026-07-31:source:53464282edb7f6b3b7b8446d9d5c1673"
        ],
        "evidence": [
          {
            "source_id": "task-631-round2-2026-07-31:source:53464282edb7f6b3b7b8446d9d5c1673",
            "url": "https://www.ncei.noaa.gov/data/normals-monthly/1991-2020/access/USW00012836.csv",
            "locator": "climate_coldest_month_low_c_derived; geographic grain: nearest_station",
            "retrieved_at": "2026-07-31"
          }
        ]
      },
      {
        "row_id": "cities-with-the-mildest-winters:city:au:abs_sua:3003",
        "label": "Cairns, Australia",
        "canonical_path": "/cities/au/cairns/",
        "country_code": "AU",
        "value": 17.2,
        "value_display": "17.2 °C",
        "unit": "°c",
        "geographic_grain": "city",
        "observation_period": "2020-12-31",
        "derivation": "Coldest of the twelve published monthly values of climate_monthly_low_c",
        "status": "accepted",
        "metric_id": "climate_coldest_month_low_c_derived",
        "source_quality": "verified",
        "source_ids": [
          "source-7523f58a3083"
        ],
        "evidence": [
          {
            "source_id": "source-7523f58a3083",
            "url": "https://www.bom.gov.au/jsp/ncc/cdio/cvg/av?p_stn_num=031011&p_prim_element_index=0&p_comp_element_index=0&normals_years=1991-2020&p_display_type=full_statistics_table",
            "locator": "climate_coldest_month_low_c_derived; geographic grain: city",
            "retrieved_at": "2026-07-26"
          }
        ]
      },
      {
        "row_id": "cities-with-the-mildest-winters:city:es:wikidata:Q1853429",
        "label": "Valverde, Spain",
        "canonical_path": "/cities/es/valverde/",
        "country_code": "ES",
        "value": 16.8,
        "value_display": "16.8 °C",
        "unit": "°c",
        "geographic_grain": "city",
        "observation_period": "2020-12-31",
        "derivation": "Coldest of the twelve published monthly values of climate_monthly_low_c",
        "status": "accepted",
        "metric_id": "climate_coldest_month_low_c_derived",
        "source_quality": "verified",
        "source_ids": [
          "source-86c1ff606599"
        ],
        "evidence": [
          {
            "source_id": "source-86c1ff606599",
            "url": "https://www.aemet.es/documentos/es/datos_abiertos/Estadisticas/Estadisticas_meteorofenologicas/evmf_estadistica_anual_2023.zip",
            "locator": "climate_coldest_month_low_c_derived; geographic grain: city",
            "retrieved_at": "2026-07-27"
          }
        ]
      },
      {
        "row_id": "cities-with-the-mildest-winters:city:jp:jis:472077",
        "label": "石垣市, Japan",
        "canonical_path": "/cities/jp/ishigakishi/",
        "country_code": "JP",
        "value": 16.7,
        "value_display": "16.7 °C",
        "unit": "°c",
        "geographic_grain": "nearest_station",
        "observation_period": "1991-12-31",
        "derivation": "Coldest of the twelve published monthly values of climate_monthly_low_c",
        "status": "accepted",
        "metric_id": "climate_coldest_month_low_c_derived",
        "source_quality": "verified",
        "source_ids": [
          "task-631-round2-2026-07-31:source:7e332d21f640559e376689a4bca80bc2"
        ],
        "evidence": [
          {
            "source_id": "task-631-round2-2026-07-31:source:7e332d21f640559e376689a4bca80bc2",
            "url": "https://www.ncei.noaa.gov/data/oceans/archive/arc0216/0253808/1.1/data/0-data/Region-2-WMO-Normals-9120/Japan/CSV/Ishigakijima_47918.csv",
            "locator": "climate_coldest_month_low_c_derived; geographic grain: nearest_station",
            "retrieved_at": "2026-07-31"
          }
        ]
      },
      {
        "row_id": "cities-with-the-mildest-winters:city:jp:jis:472140",
        "label": "宮古島市, Japan",
        "canonical_path": "/cities/jp/miyakoshimashi/",
        "country_code": "JP",
        "value": 16.3,
        "value_display": "16.3 °C",
        "unit": "°c",
        "geographic_grain": "city",
        "observation_period": "2020-12-31",
        "derivation": "Coldest of the twelve published monthly values of climate_monthly_low_c",
        "status": "accepted",
        "metric_id": "climate_coldest_month_low_c_derived",
        "source_quality": "verified",
        "source_ids": [
          "source-7b1d18eb7f12"
        ],
        "evidence": [
          {
            "source_id": "source-7b1d18eb7f12",
            "url": "https://www.data.jma.go.jp/stats/mdrr/normal/2020/data/normal_surface.zip",
            "locator": "climate_coldest_month_low_c_derived; geographic grain: city",
            "retrieved_at": "2026-07-26"
          }
        ]
      },
      {
        "row_id": "cities-with-the-mildest-winters:us-place-1202681",
        "label": "Aventura, United States",
        "canonical_path": "/cities/us/aventura/",
        "country_code": "US",
        "value": 16.2,
        "value_display": "16.2 °C",
        "unit": "°c",
        "geographic_grain": "nearest_station",
        "observation_period": "1991-12-31",
        "derivation": "Coldest of the twelve published monthly values of climate_monthly_low_c",
        "status": "accepted",
        "metric_id": "climate_coldest_month_low_c_derived",
        "source_quality": "verified",
        "source_ids": [
          "task-631-round2-2026-07-31:source:e0c4f8890c30c3c6c62c44faf708dd7d"
        ],
        "evidence": [
          {
            "source_id": "task-631-round2-2026-07-31:source:e0c4f8890c30c3c6c62c44faf708dd7d",
            "url": "https://www.ncei.noaa.gov/data/normals-monthly/1991-2020/access/USW00092811.csv",
            "locator": "climate_coldest_month_low_c_derived; geographic grain: nearest_station",
            "retrieved_at": "2026-07-31"
          }
        ]
      },
      {
        "row_id": "cities-with-the-mildest-winters:us-place-1203975",
        "label": "Bay Harbor Islands, United States",
        "canonical_path": "/cities/us/bay-harbor-islands/",
        "country_code": "US",
        "value": 16.2,
        "value_display": "16.2 °C",
        "unit": "°c",
        "geographic_grain": "nearest_station",
        "observation_period": "1991-12-31",
        "derivation": "Coldest of the twelve published monthly values of climate_monthly_low_c",
        "status": "accepted",
        "metric_id": "climate_coldest_month_low_c_derived",
        "source_quality": "verified",
        "source_ids": [
          "task-631-round2-2026-07-31:source:e0c4f8890c30c3c6c62c44faf708dd7d"
        ],
        "evidence": [
          {
            "source_id": "task-631-round2-2026-07-31:source:e0c4f8890c30c3c6c62c44faf708dd7d",
            "url": "https://www.ncei.noaa.gov/data/normals-monthly/1991-2020/access/USW00092811.csv",
            "locator": "climate_coldest_month_low_c_derived; geographic grain: nearest_station",
            "retrieved_at": "2026-07-31"
          }
        ]
      },
      {
        "row_id": "cities-with-the-mildest-winters:us-place-1236300",
        "label": "Key Biscayne, United States",
        "canonical_path": "/cities/us/key-biscayne/",
        "country_code": "US",
        "value": 16.2,
        "value_display": "16.2 °C",
        "unit": "°c",
        "geographic_grain": "nearest_station",
        "observation_period": "1991-12-31",
        "derivation": "Coldest of the twelve published monthly values of climate_monthly_low_c",
        "status": "accepted",
        "metric_id": "climate_coldest_month_low_c_derived",
        "source_quality": "verified",
        "source_ids": [
          "task-631-round2-2026-07-31:source:e0c4f8890c30c3c6c62c44faf708dd7d"
        ],
        "evidence": [
          {
            "source_id": "task-631-round2-2026-07-31:source:e0c4f8890c30c3c6c62c44faf708dd7d",
            "url": "https://www.ncei.noaa.gov/data/normals-monthly/1991-2020/access/USW00092811.csv",
            "locator": "climate_coldest_month_low_c_derived; geographic grain: nearest_station",
            "retrieved_at": "2026-07-31"
          }
        ]
      },
      {
        "row_id": "cities-with-the-mildest-winters:us-place-1245000",
        "label": "Miami, United States",
        "canonical_path": "/cities/us/miami-fl/",
        "country_code": "US",
        "value": 16.2,
        "value_display": "16.2 °C",
        "unit": "°c",
        "geographic_grain": "city",
        "observation_period": "2020-12-31",
        "derivation": "Coldest of the twelve published monthly values of climate_monthly_low_c",
        "status": "accepted",
        "metric_id": "climate_coldest_month_low_c_derived",
        "source_quality": "verified",
        "source_ids": [
          "source-5115bddefbe6"
        ],
        "evidence": [
          {
            "source_id": "source-5115bddefbe6",
            "url": "https://www.ncei.noaa.gov/data/normals-monthly/1991-2020/access/USW00092811.csv",
            "locator": "climate_coldest_month_low_c_derived; geographic grain: city",
            "retrieved_at": "2026-07-29"
          }
        ]
      },
      {
        "row_id": "cities-with-the-mildest-winters:city:es:wikidata:Q399702",
        "label": "Agüimes, Spain",
        "canonical_path": "/cities/es/aguimes/",
        "country_code": "ES",
        "value": 15.6,
        "value_display": "15.6 °C",
        "unit": "°c",
        "geographic_grain": "nearest_station",
        "observation_period": "1991-12-31",
        "derivation": "Coldest of the twelve published monthly values of climate_monthly_low_c",
        "status": "accepted",
        "metric_id": "climate_coldest_month_low_c_derived",
        "source_quality": "verified",
        "source_ids": [
          "task-631-round2-2026-07-31:source:be315ff40e661e020504ceacd7eddd68"
        ],
        "evidence": [
          {
            "source_id": "task-631-round2-2026-07-31:source:be315ff40e661e020504ceacd7eddd68",
            "url": "https://www.ncei.noaa.gov/data/oceans/archive/arc0216/0253808/1.1/data/0-data/Region-6-WMO-Normals-9120/Spain/CSV/GRANCANARIAAEROPUERTO_60030.csv",
            "locator": "climate_coldest_month_low_c_derived; geographic grain: nearest_station",
            "retrieved_at": "2026-07-31"
          }
        ]
      },
      {
        "row_id": "cities-with-the-mildest-winters:city:es:wikidata:Q11974",
        "label": "Palmas de Gran Canaria, Las, Spain",
        "canonical_path": "/cities/es/palmas-de-gran-canaria-las/",
        "country_code": "ES",
        "value": 15.6,
        "value_display": "15.6 °C",
        "unit": "°c",
        "geographic_grain": "nearest_station",
        "observation_period": "1991-12-31",
        "derivation": "Coldest of the twelve published monthly values of climate_monthly_low_c",
        "status": "accepted",
        "metric_id": "climate_coldest_month_low_c_derived",
        "source_quality": "verified",
        "source_ids": [
          "task-631-round2-2026-07-31:source:be315ff40e661e020504ceacd7eddd68"
        ],
        "evidence": [
          {
            "source_id": "task-631-round2-2026-07-31:source:be315ff40e661e020504ceacd7eddd68",
            "url": "https://www.ncei.noaa.gov/data/oceans/archive/arc0216/0253808/1.1/data/0-data/Region-6-WMO-Normals-9120/Spain/CSV/GRANCANARIAAEROPUERTO_60030.csv",
            "locator": "climate_coldest_month_low_c_derived; geographic grain: nearest_station",
            "retrieved_at": "2026-07-31"
          }
        ]
      },
      {
        "row_id": "cities-with-the-mildest-winters:city:es:wikidata:Q693258",
        "label": "San Bartolomé de Tirajana, Spain",
        "canonical_path": "/cities/es/san-bartolome-de-tirajana/",
        "country_code": "ES",
        "value": 15.6,
        "value_display": "15.6 °C",
        "unit": "°c",
        "geographic_grain": "nearest_station",
        "observation_period": "1991-12-31",
        "derivation": "Coldest of the twelve published monthly values of climate_monthly_low_c",
        "status": "accepted",
        "metric_id": "climate_coldest_month_low_c_derived",
        "source_quality": "verified",
        "source_ids": [
          "task-631-round2-2026-07-31:source:be315ff40e661e020504ceacd7eddd68"
        ],
        "evidence": [
          {
            "source_id": "task-631-round2-2026-07-31:source:be315ff40e661e020504ceacd7eddd68",
            "url": "https://www.ncei.noaa.gov/data/oceans/archive/arc0216/0253808/1.1/data/0-data/Region-6-WMO-Normals-9120/Spain/CSV/GRANCANARIAAEROPUERTO_60030.csv",
            "locator": "climate_coldest_month_low_c_derived; geographic grain: nearest_station",
            "retrieved_at": "2026-07-31"
          }
        ]
      },
      {
        "row_id": "cities-with-the-mildest-winters:city:es:wikidata:Q984488",
        "label": "Santa Brígida, Spain",
        "canonical_path": "/cities/es/santa-brigida/",
        "country_code": "ES",
        "value": 15.6,
        "value_display": "15.6 °C",
        "unit": "°c",
        "geographic_grain": "nearest_station",
        "observation_period": "1991-12-31",
        "derivation": "Coldest of the twelve published monthly values of climate_monthly_low_c",
        "status": "accepted",
        "metric_id": "climate_coldest_month_low_c_derived",
        "source_quality": "verified",
        "source_ids": [
          "task-631-round2-2026-07-31:source:be315ff40e661e020504ceacd7eddd68"
        ],
        "evidence": [
          {
            "source_id": "task-631-round2-2026-07-31:source:be315ff40e661e020504ceacd7eddd68",
            "url": "https://www.ncei.noaa.gov/data/oceans/archive/arc0216/0253808/1.1/data/0-data/Region-6-WMO-Normals-9120/Spain/CSV/GRANCANARIAAEROPUERTO_60030.csv",
            "locator": "climate_coldest_month_low_c_derived; geographic grain: nearest_station",
            "retrieved_at": "2026-07-31"
          }
        ]
      },
      {
        "row_id": "cities-with-the-mildest-winters:city:jp:jis:473251",
        "label": "中頭郡嘉手納町, Japan",
        "canonical_path": "/cities/jp/nakazugunkadenamachi/",
        "country_code": "JP",
        "value": 14.9,
        "value_display": "14.9 °C",
        "unit": "°c",
        "geographic_grain": "nearest_station",
        "observation_period": "1991-12-31",
        "derivation": "Coldest of the twelve published monthly values of climate_monthly_low_c",
        "status": "accepted",
        "metric_id": "climate_coldest_month_low_c_derived",
        "source_quality": "verified",
        "source_ids": [
          "task-631-round2-2026-07-31:source:dcf824a47f91682788afa0b402f66e61"
        ],
        "evidence": [
          {
            "source_id": "task-631-round2-2026-07-31:source:dcf824a47f91682788afa0b402f66e61",
            "url": "https://www.ncei.noaa.gov/data/oceans/archive/arc0216/0253808/1.1/data/0-data/Region-2-WMO-Normals-9120/Japan/CSV/Naha_47936.csv",
            "locator": "climate_coldest_month_low_c_derived; geographic grain: nearest_station",
            "retrieved_at": "2026-07-31"
          }
        ]
      },
      {
        "row_id": "cities-with-the-mildest-winters:city:jp:jis:473294",
        "label": "中頭郡西原町, Japan",
        "canonical_path": "/cities/jp/nakazugunnishiharamachi/",
        "country_code": "JP",
        "value": 14.9,
        "value_display": "14.9 °C",
        "unit": "°c",
        "geographic_grain": "nearest_station",
        "observation_period": "1991-12-31",
        "derivation": "Coldest of the twelve published monthly values of climate_monthly_low_c",
        "status": "accepted",
        "metric_id": "climate_coldest_month_low_c_derived",
        "source_quality": "verified",
        "source_ids": [
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        ],
        "evidence": [
          {
            "source_id": "task-631-round2-2026-07-31:source:dcf824a47f91682788afa0b402f66e61",
            "url": "https://www.ncei.noaa.gov/data/oceans/archive/arc0216/0253808/1.1/data/0-data/Region-2-WMO-Normals-9120/Japan/CSV/Naha_47936.csv",
            "locator": "climate_coldest_month_low_c_derived; geographic grain: nearest_station",
            "retrieved_at": "2026-07-31"
          }
        ]
      },
      {
        "row_id": "cities-with-the-mildest-winters:city:jp:jis:473243",
        "label": "中頭郡読谷村, Japan",
        "canonical_path": "/cities/jp/nakazugunyomitanmura/",
        "country_code": "JP",
        "value": 14.9,
        "value_display": "14.9 °C",
        "unit": "°c",
        "geographic_grain": "nearest_station",
        "observation_period": "1991-12-31",
        "derivation": "Coldest of the twelve published monthly values of climate_monthly_low_c",
        "status": "accepted",
        "metric_id": "climate_coldest_month_low_c_derived",
        "source_quality": "verified",
        "source_ids": [
          "task-631-round2-2026-07-31:source:dcf824a47f91682788afa0b402f66e61"
        ],
        "evidence": [
          {
            "source_id": "task-631-round2-2026-07-31:source:dcf824a47f91682788afa0b402f66e61",
            "url": "https://www.ncei.noaa.gov/data/oceans/archive/arc0216/0253808/1.1/data/0-data/Region-2-WMO-Normals-9120/Japan/CSV/Naha_47936.csv",
            "locator": "climate_coldest_month_low_c_derived; geographic grain: nearest_station",
            "retrieved_at": "2026-07-31"
          }
        ]
      },
      {
        "row_id": "cities-with-the-mildest-winters:city:au:abs_sua:5002",
        "label": "Broome, Australia",
        "canonical_path": "/cities/au/broome/",
        "country_code": "AU",
        "value": 14.2,
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        "publisher": "National Statistics Office of Malta / Malta International Airport Meteorological Office",
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        "last_checked": "2026-07-29"
      }
    ],
    "meaning_audit": [
      "Compare the displayed value, unit, source date and geographic grain together.",
      "A city label does not change a regional observation into a city measurement."
    ],
    "blockers": [],
    "counts": {
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      "rows_accepted": 30,
      "rows_blocked": 0,
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}
