{ "snapshot_id": "approved-static-99827d02fde8c07a", "schema_version": "immigrationdb-report-dataset-v1", "generated_at": "2026-07-16", "report": { "schema_version": "immigrationdb-generated-report-v1", "canonical_slug": "major-cities-lowest-modelled-annual-precipitation", "canonical_path": "/reports/major-cities-lowest-modelled-annual-precipitation/", "title": "Major cities with the lowest modelled annual precipitation", "question": "Major cities with the lowest modelled annual precipitation", "short_answer": "Los Angeles, United States is first in the current published ranking at 332.377 mm/year; compare its source date and geographic grain before using the result.", "summary": "The same derived NASA POWER annual precipitation layer ranked low to high. Low millimetres do not mean few rainy days.", "report_type": "data_driven_report", "scope": "multi-country city-coordinate grid", "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-major-cities-lowest-modelled-annual-precipitation-v1", "methodology": { "summary": "Use the compatible published metric climate_grid_annual_precipitation_mm, keep one machine-readable unit family with direct source URLs, and sort ascending.", "formula": "climate_grid_annual_precipitation_mm asc", "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": "2026-07-16T06:53:07.287Z", "status": "generated_from_current_reusable_facts", "field_dates_visible": true }, "rows": [ { "row_id": "major-cities-lowest-modelled-annual-precipitation:us-place-0644000", "label": "Los Angeles, United States", "country_code": "US", "value": 332.377, "value_display": "332.377 mm/year", "unit": "mm/year", "geographic_grain": "city_coordinate_grid", "observation_period": "2001-2020", "derivation": "PRECTOTCORR ANN (mm/day) × 365.25", "status": "accepted", "metric_id": "climate_grid_annual_precipitation_mm", "source_quality": "verified", "source_ids": [ "nasa_power_climatology_2001_2020" ], "evidence": [ { "source_id": "nasa_power_climatology_2001_2020", "url": "https://power.larc.nasa.gov/api/temporal/climatology/point?community=RE¶meters=T2M%2CT2M_MAX%2CT2M_MIN%2CPRECTOTCORR%2CALLSKY_SFC_SW_DWN&longitude=-118.243680&latitude=34.052230&format=JSON", "locator": "climate_grid_annual_precipitation_mm; geographic grain: city_coordinate_grid", "retrieved_at": "2026-07-16T06:53:07.287Z" } ] }, { "row_id": "major-cities-lowest-modelled-annual-precipitation:city:es:slug:valencia", "label": "Valencia, Spain", "country_code": "ES", "value": 394.47, "value_display": "394.47 mm/year", "unit": "mm/year", "geographic_grain": "city_coordinate_grid", "observation_period": "2001-2020", "derivation": "PRECTOTCORR ANN (mm/day) × 365.25", "status": "accepted", "metric_id": "climate_grid_annual_precipitation_mm", "source_quality": "verified", "source_ids": [ "nasa_power_climatology_2001_2020" ], "evidence": [ { "source_id": "nasa_power_climatology_2001_2020", "url": "https://power.larc.nasa.gov/api/temporal/climatology/point?community=RE¶meters=T2M%2CT2M_MAX%2CT2M_MIN%2CPRECTOTCORR%2CALLSKY_SFC_SW_DWN&longitude=-0.379660&latitude=39.473910&format=JSON", "locator": "climate_grid_annual_precipitation_mm; geographic grain: city_coordinate_grid", "retrieved_at": "2026-07-16T06:53:07.287Z" } ] }, { "row_id": "major-cities-lowest-modelled-annual-precipitation:city:es:slug:madrid", "label": "Madrid, Spain", "country_code": "ES", "value": 445.605, "value_display": "445.605 mm/year", "unit": "mm/year", "geographic_grain": "city_coordinate_grid", "observation_period": "2001-2020", "derivation": "PRECTOTCORR ANN (mm/day) × 365.25", "status": "accepted", "metric_id": "climate_grid_annual_precipitation_mm", "source_quality": "verified", "source_ids": [ "nasa_power_climatology_2001_2020" ], "evidence": [ { "source_id": "nasa_power_climatology_2001_2020", "url": "https://power.larc.nasa.gov/api/temporal/climatology/point?community=RE¶meters=T2M%2CT2M_MAX%2CT2M_MIN%2CPRECTOTCORR%2CALLSKY_SFC_SW_DWN&longitude=-3.702560&latitude=40.416500&format=JSON", "locator": "climate_grid_annual_precipitation_mm; geographic grain: city_coordinate_grid", "retrieved_at": "2026-07-16T06:53:07.287Z" } ] }, { "row_id": "major-cities-lowest-modelled-annual-precipitation:city:es:slug:barcelona", "label": "Barcelona, Spain", "country_code": "ES", "value": 518.655, "value_display": "518.655 mm/year", "unit": "mm/year", "geographic_grain": "city_coordinate_grid", "observation_period": "2001-2020", "derivation": "PRECTOTCORR ANN (mm/day) × 365.25", "status": "accepted", "metric_id": "climate_grid_annual_precipitation_mm", "source_quality": "verified", "source_ids": [ "nasa_power_climatology_2001_2020" ], "evidence": [ { "source_id": "nasa_power_climatology_2001_2020", "url": "https://power.larc.nasa.gov/api/temporal/climatology/point?community=RE¶meters=T2M%2CT2M_MAX%2CT2M_MIN%2CPRECTOTCORR%2CALLSKY_SFC_SW_DWN&longitude=2.158990&latitude=41.388790&format=JSON", "locator": "climate_grid_annual_precipitation_mm; geographic grain: city_coordinate_grid", "retrieved_at": "2026-07-16T06:53:07.287Z" } ] }, { "row_id": "major-cities-lowest-modelled-annual-precipitation:city:bg:wikidata:Q188291", "label": "Varna, Bulgaria", "country_code": "BG", "value": 536.918, "value_display": "536.918 mm/year", "unit": "mm/year", "geographic_grain": "city_coordinate_grid", "observation_period": "2001-2020", "derivation": "PRECTOTCORR ANN (mm/day) × 365.25", "status": "accepted", "metric_id": "climate_grid_annual_precipitation_mm", "source_quality": "verified", "source_ids": [ "nasa_power_climatology_2001_2020" ], "evidence": [ { "source_id": "nasa_power_climatology_2001_2020", "url": "https://power.larc.nasa.gov/api/temporal/climatology/point?community=RE¶meters=T2M%2CT2M_MAX%2CT2M_MIN%2CPRECTOTCORR%2CALLSKY_SFC_SW_DWN&longitude=27.910240&latitude=43.219120&format=JSON", "locator": "climate_grid_annual_precipitation_mm; geographic grain: city_coordinate_grid", "retrieved_at": "2026-07-16T06:53:07.287Z" } ] }, { "row_id": "major-cities-lowest-modelled-annual-precipitation:city:pt:slug:lisbon", "label": "Lisbon, Portugal", "country_code": "PT", "value": 540.57, "value_display": "540.57 mm/year", "unit": "mm/year", "geographic_grain": "city_coordinate_grid", "observation_period": "2001-2020", "derivation": "PRECTOTCORR ANN (mm/day) × 365.25", "status": "accepted", "metric_id": "climate_grid_annual_precipitation_mm", "source_quality": "verified", "source_ids": [ "nasa_power_climatology_2001_2020" ], "evidence": [ { "source_id": "nasa_power_climatology_2001_2020", "url": "https://power.larc.nasa.gov/api/temporal/climatology/point?community=RE¶meters=T2M%2CT2M_MAX%2CT2M_MIN%2CPRECTOTCORR%2CALLSKY_SFC_SW_DWN&longitude=-9.149800&latitude=38.725090&format=JSON", "locator": "climate_grid_annual_precipitation_mm; geographic grain: city_coordinate_grid", "retrieved_at": "2026-07-16T06:53:07.287Z" } ] }, { "row_id": "major-cities-lowest-modelled-annual-precipitation:city:ca:wikidata:Q36312", "label": "Calgary, Canada", "country_code": "CA", "value": 547.875, "value_display": "547.875 mm/year", "unit": "mm/year", "geographic_grain": "city_coordinate_grid", "observation_period": "2001-2020", "derivation": "PRECTOTCORR ANN (mm/day) × 365.25", "status": "accepted", "metric_id": "climate_grid_annual_precipitation_mm", "source_quality": "verified", "source_ids": [ "nasa_power_climatology_2001_2020" ], "evidence": [ { "source_id": "nasa_power_climatology_2001_2020", "url": "https://power.larc.nasa.gov/api/temporal/climatology/point?community=RE¶meters=T2M%2CT2M_MAX%2CT2M_MIN%2CPRECTOTCORR%2CALLSKY_SFC_SW_DWN&longitude=-114.085290&latitude=51.050110&format=JSON", "locator": "climate_grid_annual_precipitation_mm; geographic grain: city_coordinate_grid", "retrieved_at": "2026-07-16T06:53:07.287Z" } ] }, { "row_id": "major-cities-lowest-modelled-annual-precipitation:city:pt:wikidata:Q190187", "label": "Sintra, Portugal", "country_code": "PT", "value": 573.442, "value_display": "573.442 mm/year", "unit": "mm/year", "geographic_grain": "city_coordinate_grid", "observation_period": "2001-2020", "derivation": "PRECTOTCORR ANN (mm/day) × 365.25", "status": "accepted", "metric_id": "climate_grid_annual_precipitation_mm", "source_quality": "verified", "source_ids": [ "nasa_power_climatology_2001_2020" ], "evidence": [ { "source_id": "nasa_power_climatology_2001_2020", "url": "https://power.larc.nasa.gov/api/temporal/climatology/point?community=RE¶meters=T2M%2CT2M_MAX%2CT2M_MIN%2CPRECTOTCORR%2CALLSKY_SFC_SW_DWN&longitude=-9.378260&latitude=38.800970&format=JSON", "locator": "climate_grid_annual_precipitation_mm; geographic grain: city_coordinate_grid", "retrieved_at": "2026-07-16T06:53:07.287Z" } ] }, { "row_id": "major-cities-lowest-modelled-annual-precipitation:city:ro:wikidata:Q61442", "label": "Iași, Romania", "country_code": "RO", "value": 577.095, "value_display": "577.095 mm/year", "unit": "mm/year", "geographic_grain": "city_coordinate_grid", "observation_period": "2001-2020", "derivation": "PRECTOTCORR ANN (mm/day) × 365.25", "status": "accepted", "metric_id": "climate_grid_annual_precipitation_mm", "source_quality": "verified", "source_ids": [ "nasa_power_climatology_2001_2020" ], "evidence": [ { "source_id": "nasa_power_climatology_2001_2020", "url": "https://power.larc.nasa.gov/api/temporal/climatology/point?community=RE¶meters=T2M%2CT2M_MAX%2CT2M_MIN%2CPRECTOTCORR%2CALLSKY_SFC_SW_DWN&longitude=27.600000&latitude=47.166670&format=JSON", "locator": "climate_grid_annual_precipitation_mm; 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geographic grain: city_coordinate_grid", "retrieved_at": "2026-07-16T06:53:07.287Z" } ] }, { "row_id": "major-cities-lowest-modelled-annual-precipitation:city:ro:wikidata:Q19660", "label": "Bucharest, Romania", "country_code": "RO", "value": 617.273, "value_display": "617.273 mm/year", "unit": "mm/year", "geographic_grain": "city_coordinate_grid", "observation_period": "2001-2020", "derivation": "PRECTOTCORR ANN (mm/day) × 365.25", "status": "accepted", "metric_id": "climate_grid_annual_precipitation_mm", "source_quality": "verified", "source_ids": [ "nasa_power_climatology_2001_2020" ], "evidence": [ { "source_id": "nasa_power_climatology_2001_2020", "url": "https://power.larc.nasa.gov/api/temporal/climatology/point?community=RE¶meters=T2M%2CT2M_MAX%2CT2M_MIN%2CPRECTOTCORR%2CALLSKY_SFC_SW_DWN&longitude=26.106260&latitude=44.432250&format=JSON", "locator": "climate_grid_annual_precipitation_mm; geographic grain: city_coordinate_grid", "retrieved_at": "2026-07-16T06:53:07.287Z" } ] }, { "row_id": "major-cities-lowest-modelled-annual-precipitation:city:pl:slug:wroclaw", "label": "Wrocław, Poland", "country_code": "PL", "value": 631.883, "value_display": "631.883 mm/year", "unit": "mm/year", "geographic_grain": "city_coordinate_grid", "observation_period": "2001-2020", "derivation": "PRECTOTCORR ANN (mm/day) × 365.25", "status": "accepted", "metric_id": "climate_grid_annual_precipitation_mm", "source_quality": "verified", "source_ids": [ "nasa_power_climatology_2001_2020" ], "evidence": [ { "source_id": "nasa_power_climatology_2001_2020", "url": "https://power.larc.nasa.gov/api/temporal/climatology/point?community=RE¶meters=T2M%2CT2M_MAX%2CT2M_MIN%2CPRECTOTCORR%2CALLSKY_SFC_SW_DWN&longitude=17.030060&latitude=51.102860&format=JSON", "locator": "climate_grid_annual_precipitation_mm; 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