{
  "title": "Does Seattle really get more rain than other cities?",
  "normalPeriod": "1991-2020",
  "source": "NOAA NCEI U.S. Annual/Seasonal Climate Normals, 1991-2020",
  "selection": "Ten US cities selected before fetching to compare familiar Pacific Northwest, eastern, southern, and arid climates; station selected by GraySky's existing city climate endpoint. This is not a national or representative ranking.",
  "definitions": {
    "wetDay": "A station day with at least 0.01 inch (0.254 mm) of liquid-equivalent precipitation.",
    "precipitation": "Includes rain and the liquid equivalent of frozen precipitation; not snowfall depth.",
    "coverage": "NOAA's value-specific completeness flags and years are retained; a shared normal period does not imply every station has 30 complete observed years.",
    "flags": {
      "S": "Standard: at least 24 years meeting availability standards; missing months may be estimated using surrounding stations.",
      "R": "Representative: at least 10 years meeting availability standards; missing months may be estimated using surrounding stations.",
      "P": "Provisional: at least 10 years meeting availability standards; missing months cannot be filled using surrounding stations."
    }
  },
  "metrics": {
    "annual_precip_in": "ANN-PRCP-NORMAL",
    "wet_days_ge_0_01_in": "ANN-PRCP-AVGNDS-GE001HI"
  },
  "methodologyUrls": [
    "https://www.ncei.noaa.gov/products/land-based-station/us-climate-normals",
    "https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020/doc/Readme_By-Variable_By-Station_Normals_Files.txt",
    "https://www.ncei.noaa.gov/pub/data/cdo/documentation/normals-annualseasonal-1991-2020_documentation.pdf",
    "https://www.weather.gov/asos/PrecipitationAccumulation.html"
  ],
  "rows": [
    {
      "city": "Atlanta",
      "state": "GA",
      "slug": "atlanta-ga",
      "station_id": "USW00003888",
      "station_name": "ATLANTA FULTON CO AP, GA US",
      "station_latitude": 33.7792,
      "station_longitude": -84.5214,
      "station_distance_from_city_km": 13.0,
      "normal_period": "1991-2020",
      "annual_precip_in": 48.13,
      "annual_precip_mm": 1222.502,
      "annual_precip_in_flag": "R",
      "annual_precip_in_years": 20.0,
      "annual_precip_in_measurement_flag": "",
      "wet_days_ge_0_01_in": 123.4,
      "wet_days_ge_0_01_in_flag": "P",
      "wet_days_ge_0_01_in_years": 22.0,
      "wet_days_ge_0_01_in_measurement_flag": "",
      "coverage": "all cited values available",
      "noaa_source_url": "https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020/access/USW00003888.csv",
      "noaa_retrieved_at": "2026-09-05T03:25:31.399975+00:00",
      "noaa_snapshot_sha256": "4c0cbb9ede240a9bd06a8f986299575cc8efc724f138d4000528780249593ae4"
    },
    {
      "city": "Boston",
      "state": "MA",
      "slug": "boston-ma",
      "station_id": "USW00014739",
      "station_name": "BOSTON LOGAN INTL AP, MA US",
      "station_latitude": 42.3606,
      "station_longitude": -71.0106,
      "station_distance_from_city_km": 4.0,
      "normal_period": "1991-2020",
      "annual_precip_in": 43.59,
      "annual_precip_mm": 1107.186,
      "annual_precip_in_flag": "S",
      "annual_precip_in_years": 29.0,
      "annual_precip_in_measurement_flag": "",
      "wet_days_ge_0_01_in": 128.4,
      "wet_days_ge_0_01_in_flag": "S",
      "wet_days_ge_0_01_in_years": 30.0,
      "wet_days_ge_0_01_in_measurement_flag": "",
      "coverage": "all cited values available",
      "noaa_source_url": "https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020/access/USW00014739.csv",
      "noaa_retrieved_at": "2026-09-05T03:25:31.630237+00:00",
      "noaa_snapshot_sha256": "f7e5000250eb0584b4490b3a37fa6d69259c04de4e4a944fe48793f16a272ea5"
    },
    {
      "city": "Chicago",
      "state": "IL",
      "slug": "chicago-il",
      "station_id": "USW00014819",
      "station_name": "CHICAGO MIDWAY AP, IL US",
      "station_latitude": 41.7861,
      "station_longitude": -87.7522,
      "station_distance_from_city_km": 11.4,
      "normal_period": "1991-2020",
      "annual_precip_in": 34.42,
      "annual_precip_mm": 874.268,
      "annual_precip_in_flag": "R",
      "annual_precip_in_years": 20.0,
      "annual_precip_in_measurement_flag": "",
      "wet_days_ge_0_01_in": 121.3,
      "wet_days_ge_0_01_in_flag": "P",
      "wet_days_ge_0_01_in_years": 22.0,
      "wet_days_ge_0_01_in_measurement_flag": "",
      "coverage": "all cited values available",
      "noaa_source_url": "https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020/access/USW00014819.csv",
      "noaa_retrieved_at": "2026-09-05T03:25:29.950089+00:00",
      "noaa_snapshot_sha256": "0595b6a7ea817c9fe77d361e1f5e67f88dbef33a98003a90f2a15875d188b3fe"
    },
    {
      "city": "Houston",
      "state": "TX",
      "slug": "houston-tx",
      "station_id": "USW00012918",
      "station_name": "HOUSTON HOBBY AP, TX US",
      "station_latitude": 29.6381,
      "station_longitude": -95.2819,
      "station_distance_from_city_km": 15.2,
      "normal_period": "1991-2020",
      "annual_precip_in": 55.62,
      "annual_precip_mm": 1412.748,
      "annual_precip_in_flag": "S",
      "annual_precip_in_years": 30.0,
      "annual_precip_in_measurement_flag": "",
      "wet_days_ge_0_01_in": 107.2,
      "wet_days_ge_0_01_in_flag": "S",
      "wet_days_ge_0_01_in_years": 30.0,
      "wet_days_ge_0_01_in_measurement_flag": "",
      "coverage": "all cited values available",
      "noaa_source_url": "https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020/access/USW00012918.csv",
      "noaa_retrieved_at": "2026-09-05T03:25:30.055750+00:00",
      "noaa_snapshot_sha256": "839249cac201edeef247fd2c3af197b9466baf3898de2950656687a06194ca88"
    },
    {
      "city": "Miami",
      "state": "FL",
      "slug": "miami-fl",
      "station_id": "USW00092811",
      "station_name": "MIAMI BEACH, FL US",
      "station_latitude": 25.8064,
      "station_longitude": -80.1336,
      "station_distance_from_city_km": 7.0,
      "normal_period": "1991-2020",
      "annual_precip_in": 57.18,
      "annual_precip_mm": 1452.372,
      "annual_precip_in_flag": "S",
      "annual_precip_in_years": 24.0,
      "annual_precip_in_measurement_flag": "",
      "wet_days_ge_0_01_in": 111.6,
      "wet_days_ge_0_01_in_flag": "S",
      "wet_days_ge_0_01_in_years": 26.0,
      "wet_days_ge_0_01_in_measurement_flag": "",
      "coverage": "all cited values available",
      "noaa_source_url": "https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020/access/USW00092811.csv",
      "noaa_retrieved_at": "2026-09-05T03:25:31.890667+00:00",
      "noaa_snapshot_sha256": "9891acf428fa7fdfe49fd00b06fc359cab16a806dfb12f01256f61b46617d62f"
    },
    {
      "city": "New York City",
      "state": "NY",
      "slug": "new-york-city-ny",
      "station_id": "USW00094728",
      "station_name": "NEW YORK CNTRL PK TWR, NY US",
      "station_latitude": 40.7789,
      "station_longitude": -73.9692,
      "station_distance_from_city_km": 8.0,
      "normal_period": "1991-2020",
      "annual_precip_in": 49.52,
      "annual_precip_mm": 1257.808,
      "annual_precip_in_flag": "S",
      "annual_precip_in_years": 30.0,
      "annual_precip_in_measurement_flag": "",
      "wet_days_ge_0_01_in": 125.4,
      "wet_days_ge_0_01_in_flag": "S",
      "wet_days_ge_0_01_in_years": 30.0,
      "wet_days_ge_0_01_in_measurement_flag": "",
      "coverage": "all cited values available",
      "noaa_source_url": "https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020/access/USW00094728.csv",
      "noaa_retrieved_at": "2026-09-05T03:25:30.063865+00:00",
      "noaa_snapshot_sha256": "bf479e8067e0706700cff19c93b4f10df17e160a7c3042956900eb2e02531e66"
    },
    {
      "city": "Phoenix",
      "state": "AZ",
      "slug": "phoenix-az",
      "station_id": "USW00023183",
      "station_name": "PHOENIX SKY HARBOR INTL AP, AZ US",
      "station_latitude": 33.4278,
      "station_longitude": -112.0039,
      "station_distance_from_city_km": 6.9,
      "normal_period": "1991-2020",
      "annual_precip_in": 7.22,
      "annual_precip_mm": 183.388,
      "annual_precip_in_flag": "S",
      "annual_precip_in_years": 30.0,
      "annual_precip_in_measurement_flag": "",
      "wet_days_ge_0_01_in": 33.4,
      "wet_days_ge_0_01_in_flag": "S",
      "wet_days_ge_0_01_in_years": 30.0,
      "wet_days_ge_0_01_in_measurement_flag": "",
      "coverage": "all cited values available",
      "noaa_source_url": "https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020/access/USW00023183.csv",
      "noaa_retrieved_at": "2026-09-05T03:25:30.341490+00:00",
      "noaa_snapshot_sha256": "a32254d9876c484c44b648919df0ebd1c83a68132962eff363de675429307e7b"
    },
    {
      "city": "Portland",
      "state": "OR",
      "slug": "portland-or",
      "station_id": "USC00356749",
      "station_name": "PORTLAND KGW-TV, OR US",
      "station_latitude": 45.5181,
      "station_longitude": -122.6894,
      "station_distance_from_city_km": 0.9,
      "normal_period": "1991-2020",
      "annual_precip_in": 44.07,
      "annual_precip_mm": 1119.378,
      "annual_precip_in_flag": "R",
      "annual_precip_in_years": 21.0,
      "annual_precip_in_measurement_flag": "",
      "wet_days_ge_0_01_in": 154.7,
      "wet_days_ge_0_01_in_flag": "S",
      "wet_days_ge_0_01_in_years": 26.0,
      "wet_days_ge_0_01_in_measurement_flag": "",
      "coverage": "all cited values available",
      "noaa_source_url": "https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020/access/USC00356749.csv",
      "noaa_retrieved_at": "2026-09-05T03:25:31.036321+00:00",
      "noaa_snapshot_sha256": "9ab4785be71ea8648a9200a4997166cd4c8d67da70c170d08963f0e987f1593c"
    },
    {
      "city": "San Diego",
      "state": "CA",
      "slug": "san-diego-ca",
      "station_id": "USW00023188",
      "station_name": "SAN DIEGO LINDBERGH FLD, CA US",
      "station_latitude": 32.7336,
      "station_longitude": -117.1831,
      "station_distance_from_city_km": 2.9,
      "normal_period": "1991-2020",
      "annual_precip_in": 9.79,
      "annual_precip_mm": 248.666,
      "annual_precip_in_flag": "S",
      "annual_precip_in_years": 29.0,
      "annual_precip_in_measurement_flag": "",
      "wet_days_ge_0_01_in": 40.3,
      "wet_days_ge_0_01_in_flag": "S",
      "wet_days_ge_0_01_in_years": 30.0,
      "wet_days_ge_0_01_in_measurement_flag": "",
      "coverage": "all cited values available",
      "noaa_source_url": "https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020/access/USW00023188.csv",
      "noaa_retrieved_at": "2026-09-05T03:25:30.544625+00:00",
      "noaa_snapshot_sha256": "2e514f5fba4de05042d2b384c22f548547cfb35e7bae70a62ff66d41f7fce887"
    },
    {
      "city": "Seattle",
      "state": "WA",
      "slug": "seattle-wa",
      "station_id": "USW00024234",
      "station_name": "SEATTLE BOEING FLD, WA US",
      "station_latitude": 47.5303,
      "station_longitude": -122.3008,
      "station_distance_from_city_km": 6.9,
      "normal_period": "1991-2020",
      "annual_precip_in": 36.49,
      "annual_precip_mm": 926.846,
      "annual_precip_in_flag": "R",
      "annual_precip_in_years": 19.0,
      "annual_precip_in_measurement_flag": "",
      "wet_days_ge_0_01_in": 154.2,
      "wet_days_ge_0_01_in_flag": "P",
      "wet_days_ge_0_01_in_years": 21.0,
      "wet_days_ge_0_01_in_measurement_flag": "",
      "coverage": "all cited values available",
      "noaa_source_url": "https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020/access/USW00024234.csv",
      "noaa_retrieved_at": "2026-09-05T03:25:30.585686+00:00",
      "noaa_snapshot_sha256": "750f7b733d212d915af37a751353d63f749c807f1ea02df673dfdd9bcc1a4512"
    }
  ],
  "comparison": {
    "a": "houston-tx",
    "b": "seattle-wa",
    "annual_precip_difference_in": 19.13,
    "annual_precip_percent_more_than_b": 52.43,
    "wet_days_difference": -47.0,
    "wet_days_percent_fewer_than_b": 30.48
  }
}