What are climate normals?

NOAA's official 30-year averages for 1991 to 2020, the standard baseline for what is typical at a location. This dataset covers 15,616 stations and 187,392 monthly records.

What does a monthly record include?

Average high and low, diurnal range, precipitation and rainy days, snowfall, freeze days, 90-degree days, and heating and cooling degree days with a 65 degree base, plus annual aggregates per station.

How do I query by location?

The climate endpoint takes a coordinate and returns the nearest station with full temperature normals and its month-by-month profile, so a pin on Manhattan returns Central Park.

No. Normals describe the typical climate, not the coming days. Current conditions and forecasts are in the Weather API.

How often does it change?

NOAA publishes new normals every ten years; the next set, 2001 to 2030, is due in 2031.

DataMAINTAINED1 token / call

Climate Normals API

NOAA 1991-2020 climate normals for 15,616 US stations: typical highs, lows, rain, snow and degree days by month

What the weather is NORMALLY like, anywhere in the US: NOAA''s official 30-year climate normals (1991-2020) for 15,616 weather stations, 187,392 monthly records. For any coordinate, the climate endpoint finds the nearest station with full temperature normals and returns the month-by-month story — average highs and lows, diurnal range, precipitation and rainy days, snowfall, freeze days, 90-degree days, heating and cooling degree days. Drop a pin on Manhattan and get Central Park (8 km away): 39.5F January highs, 84.9F July, 29.8 inches of annual snow. Ask Phoenix in July: 106.5F average highs and 30.8 days over 90. Rankings answer the fun and the practical alike — the snowiest place in America is Crater Lake at 463 inches a year, the driest is Death Valley at 2. Every station also carries annual aggregates: average temperature, total precipitation and snowfall, degree days, hottest/coldest/wettest month. Built for travel planning, real estate, HVAC and solar sizing, agriculture, insurance and any product that answers what is it like there? Public-domain NOAA data, self-hosted — no third-party calls at request time.

Every call needs an X-Api-Key header. A free key includes 500 tokens a month, no card required. 1 token per call, so the free plan covers about 500 calls a month.

Start free — 500 tokens / mo →See all plans

No credit card requiredAccess to 125+ APIsCancel anytime

response.json

{
  "ok": true,
  "query": {
    "lat": 40.7128,
    "lon": -74.006
  },
  "distance_km": 8.1,
  "station": {
    "id": "USW00094728",
    "name": "NEW YORK CNTRL PK TWR",
    "state": "NY",
    "latitude": 40.78,
    "longitude": -73.97,
    "elevation_m": 39.6,
    "annual": {
      "avg_temp_f": 55.8,
      "avg_high_f": 62.6,
      "avg_low_f": 48.9,
      "precipitation_in": 49.5,
      "snowfall_in": 29.8,
      "heating_degree_days": 4553.4,
      "cooling_degree_days": 1221.5,
      "hottest_month": 7,
      "coldest_month": 1,
      "wettest_month": 7
    }
  },
  "monthly": [
    {
      "month": 1,
      "avg_temp_f": 33.7,
      "avg_high_f": 39.5,
      "avg_low_f": 27.9,
      "diurnal_range_f": 11.5,
      "precipitation_in": 3.64,
      "precip_days": 10.8,
      "rainy_days": 2.5,
      "snowfall_in": 8.8,
      "freeze_days": 20.5,
      "hot_days": 0,
      "ice_days": 7.4,
      "heating_degree_days": 970.1,
      "cooling_degree_days": 0
    }
  ]
}

Production Ready: Battle-tested infrastructure with a 99.9% uptime SLA. Rate limits are generous, responses are consistent.
Simple Integration: Standard REST + JSON. Works with any HTTP client. Copy-ready code snippets in 4 languages.
One Key, 125+ APIs: Your DataAndAPIs subscription unlocks every API on the platform — anime, finance, sports, and more.

Use cases for Climate Normals API

Show what the weather is usually like in a month for a destination, event date or relocation guide.
Estimate heating and cooling needs for a building from degree days at the nearest station.
Compare cities by rainy days, snowfall or 90-degree days for travel and real-estate content.
Give forecasts context by showing the normal alongside the current reading.

Climate Normals API endpoints

Every endpoint with its parameters and a real example response.

OpenAPI definition Postman workspace

GETClimate At Coordinates
GETClimate Rankings
GETData Sources
GETGet Station Normals
GETSearch Stations

GETClimate At Coordinates

https://api-climate-normals.dataandapis.com/v1/climate

Query parameters

Parameter	Example
lat	40.7128	Required
lon	-74.0060	Required
month	1	Optional

Example request

curl "https://api-climate-normals.dataandapis.com/v1/climate?lat=40.7128&lon=-74.0060&month=1" \
  -H "X-Api-Key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "query": {
    "lat": 40.7128,
    "lon": -74.006
  },
  "distance_km": 8.1,
  "station": {
    "id": "USW00094728",
    "name": "NEW YORK CNTRL PK TWR",
    "state": "NY",
    "latitude": 40.78,
    "longitude": -73.97,
    "elevation_m": 39.6,
    "annual": {
      "avg_temp_f": 55.8,
      "avg_high_f": 62.6,
      "avg_low_f": 48.9,
      "precipitation_in": 49.5,
      "snowfall_in": 29.8,
      "heating_degree_days": 4553.4,
      "cooling_degree_days": 1221.5,
      "hottest_month": 7,
      "coldest_month": 1,
      "wettest_month": 7
    }
  },
  "monthly": [
…

Show full response

{
  "ok": true,
  "query": {
    "lat": 40.7128,
    "lon": -74.006
  },
  "distance_km": 8.1,
  "station": {
    "id": "USW00094728",
    "name": "NEW YORK CNTRL PK TWR",
    "state": "NY",
    "latitude": 40.78,
    "longitude": -73.97,
    "elevation_m": 39.6,
    "annual": {
      "avg_temp_f": 55.8,
      "avg_high_f": 62.6,
      "avg_low_f": 48.9,
      "precipitation_in": 49.5,
      "snowfall_in": 29.8,
      "heating_degree_days": 4553.4,
      "cooling_degree_days": 1221.5,
      "hottest_month": 7,
      "coldest_month": 1,
      "wettest_month": 7
    }
  },
  "monthly": [
    {
      "month": 1,
      "avg_temp_f": 33.7,
      "avg_high_f": 39.5,
      "avg_low_f": 27.9,
      "diurnal_range_f": 11.5,
      "precipitation_in": 3.64,
      "precip_days": 10.8,
      "rainy_days": 2.5,
      "snowfall_in": 8.8,
      "freeze_days": 20.5,
      "hot_days": 0,
      "ice_days": 7.4,
      "heating_degree_days": 970.1,
      "cooling_degree_days": 0
    }
  ]
}

GETClimate Rankings

https://api-climate-normals.dataandapis.com/v1/rankings

Query parameters

Parameter	Example
limit	25	Optional
metric	annual_snow	Optional
order	desc	Optional
state	CO	Optional

Example request

curl "https://api-climate-normals.dataandapis.com/v1/rankings?limit=25&metric=annual_snow&order=desc&state=CO" \
  -H "X-Api-Key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "metric": "annual_snow",
  "order": "desc",
  "count": 5,
  "results": [
    {
      "id": "US1COGN0018",
      "name": "CRESTED BUTTE 6.2 N",
      "state": "CO",
      "latitude": 38.96,
      "longitude": -106.99,
      "value": 389
    },
    {
      "id": "USC00051660",
      "name": "CLIMAX",
      "state": "CO",
      "latitude": 39.37,
      "longitude": -106.19,
      "value": 294.7
    },
    {
      "id": "USC00059175",
      "name": "WINTER PARK",
      "state": "CO",
      "latitude": 39.89,
      "longitude": -105.76,
…

Show full response

{
  "ok": true,
  "metric": "annual_snow",
  "order": "desc",
  "count": 5,
  "results": [
    {
      "id": "US1COGN0018",
      "name": "CRESTED BUTTE 6.2 N",
      "state": "CO",
      "latitude": 38.96,
      "longitude": -106.99,
      "value": 389
    },
    {
      "id": "USC00051660",
      "name": "CLIMAX",
      "state": "CO",
      "latitude": 39.37,
      "longitude": -106.19,
      "value": 294.7
    },
    {
      "id": "USC00059175",
      "name": "WINTER PARK",
      "state": "CO",
      "latitude": 39.89,
      "longitude": -105.76,
      "value": 214
    },
    {
      "id": "USC00051959",
      "name": "CRESTED BUTTE",
      "state": "CO",
      "latitude": 38.87,
      "longitude": -106.98,
      "value": 203
    },
    {
      "id": "USC00051681",
      "name": "COAL CREEK CANYON",
      "state": "CO",
      "latitude": 39.9,
      "longitude": -105.38,
      "value": 194.7
    }
  ]
}

GETData Sources

https://api-climate-normals.dataandapis.com/v1/sources

This endpoint takes no parameters.

Example request

curl "https://api-climate-normals.dataandapis.com/v1/sources" \
  -H "X-Api-Key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "vintage": "NOAA US Climate Normals 1991-2020",
  "count": 1,
  "sources": [
    {
      "slug": "noaa-normals",
      "name": "US Climate Normals 1991-2020 (monthly)",
      "publisher": "NOAA National Centers for Environmental Information",
      "licence": "US Government work - public domain",
      "source_url": "https://www.ncei.noaa.gov/products/land-based-station/us-climate-normals",
      "file_url": "https://www.ncei.noaa.gov/data/normals-monthly/1991-2020/archive/us-climate-normals_1991-2020_v1.0.1_monthly_multivariate_by-station_c20230404.tar.gz",
      "cadence": "decadal (next ~2031)",
      "record_count": 15616,
      "retrieved_at": "2026-09-05"
    }
  ]
}

GETGet Station Normals

https://api-climate-normals.dataandapis.com/v1/stations/{id}

Path parameters

Parameter	Example
id	USW00023174	Required

Example request

curl "https://api-climate-normals.dataandapis.com/v1/stations/USW00023174" \
  -H "X-Api-Key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "station": {
    "id": "USW00023174",
    "name": "LOS ANGELES INTL AP",
    "state": "CA",
    "latitude": 33.94,
    "longitude": -118.39,
    "elevation_m": 29.6,
    "annual": {
      "avg_temp_f": 63.6,
      "avg_high_f": 70.6,
      "avg_low_f": 56.6,
      "precipitation_in": 12.2,
      "snowfall_in": null,
      "heating_degree_days": 1213.6,
      "cooling_degree_days": 720.4,
      "hottest_month": 8,
      "coldest_month": 12,
      "wettest_month": 2
    },
    "monthly": [
      {
        "month": 1,
        "avg_temp_f": 57.9,
        "avg_high_f": 66.3,
        "avg_low_f": 49.4,
        "diurnal_range_f": 16.9,
…

Show full response

{
  "ok": true,
  "station": {
    "id": "USW00023174",
    "name": "LOS ANGELES INTL AP",
    "state": "CA",
    "latitude": 33.94,
    "longitude": -118.39,
    "elevation_m": 29.6,
    "annual": {
      "avg_temp_f": 63.6,
      "avg_high_f": 70.6,
      "avg_low_f": 56.6,
      "precipitation_in": 12.2,
      "snowfall_in": null,
      "heating_degree_days": 1213.6,
      "cooling_degree_days": 720.4,
      "hottest_month": 8,
      "coldest_month": 12,
      "wettest_month": 2
    },
    "monthly": [
      {
        "month": 1,
        "avg_temp_f": 57.9,
        "avg_high_f": 66.3,
        "avg_low_f": 49.4,
        "diurnal_range_f": 16.9,
        "precipitation_in": 2.86,
        "precip_days": 6.1,
        "rainy_days": 2.1,
        "snowfall_in": null,
        "freeze_days": 0,
        "hot_days": 0,
        "ice_days": 0,
        "heating_degree_days": 227.4,
        "cooling_degree_days": 5.8
      },
      {
        "month": 2,
        "avg_temp_f": 57.9,
        "avg_high_f": 65.6,
        "avg_low_f": 50.1,
        "diurnal_range_f": 15.4,
        "precipitation_in": 2.99,
        "precip_days": 6.3,
        "rainy_days": 2,
        "snowfall_in": null,
        "freeze_days": 0,
        "hot_days": 0,
        "ice_days": 0,
        "heating_degree_days": 207.3,
        "cooling_degree_days": 7.1
      },
      {
        "month": 3,
        "avg_temp_f": 59.1,
        "avg_high_f": 66.1,
        "avg_low_f": 52.2,
        "diurnal_range_f": 13.9,
        "precipitation_in": 1.73,
        "precip_days": 5.6,
        "rainy_days": 1.3,
        "snowfall_in": null,
        "freeze_days": 0,
        "hot_days": 0,
        "ice_days": 0,
        "heating_degree_days": 189.8,
        "cooling_degree_days": 8.5
      }
    ]
  }
}

GETSearch Stations

https://api-climate-normals.dataandapis.com/v1/stations

Query parameters

Parameter	Example
limit	20	Optional
q	DENVER	Optional
state	CO	Optional

Example request

curl "https://api-climate-normals.dataandapis.com/v1/stations?limit=20&q=DENVER&state=CO" \
  -H "X-Api-Key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "count": 3,
  "results": [
    {
      "id": "USW00093067",
      "name": "DENVER CENTENNIAL AP",
      "state": "CO",
      "latitude": 39.57,
      "longitude": -104.85,
      "elevation_m": 1793.1,
      "annual": {
        "avg_temp_f": 50.2,
        "avg_high_f": 63.6,
        "avg_low_f": 36.7,
        "precipitation_in": 15,
        "snowfall_in": null,
        "heating_degree_days": 6013.8,
        "cooling_degree_days": 636.1,
        "hottest_month": 7,
        "coldest_month": 12,
        "wettest_month": 8
      }
    },
    {
      "id": "USW00003017",
      "name": "DENVER INTL AP",
      "state": "CO",
…

Show full response

{
  "ok": true,
  "count": 3,
  "results": [
    {
      "id": "USW00093067",
      "name": "DENVER CENTENNIAL AP",
      "state": "CO",
      "latitude": 39.57,
      "longitude": -104.85,
      "elevation_m": 1793.1,
      "annual": {
        "avg_temp_f": 50.2,
        "avg_high_f": 63.6,
        "avg_low_f": 36.7,
        "precipitation_in": 15,
        "snowfall_in": null,
        "heating_degree_days": 6013.8,
        "cooling_degree_days": 636.1,
        "hottest_month": 7,
        "coldest_month": 12,
        "wettest_month": 8
      }
    },
    {
      "id": "USW00003017",
      "name": "DENVER INTL AP",
      "state": "CO",
      "latitude": 39.83,
      "longitude": -104.66,
      "elevation_m": 1650.2,
      "annual": {
        "avg_temp_f": 51.2,
        "avg_high_f": 65.1,
        "avg_low_f": 37.2,
        "precipitation_in": 14.5,
        "snowfall_in": null,
        "heating_degree_days": 5862,
        "cooling_degree_days": 849.5,
        "hottest_month": 7,
        "coldest_month": 12,
        "wettest_month": 5
      }
    },
    {
      "id": "USC00052223",
      "name": "DENVER WATER DEPT",
      "state": "CO",
      "latitude": 39.73,
      "longitude": -105.01,
      "elevation_m": 1593.5,
      "annual": {
        "avg_temp_f": 53.3,
        "avg_high_f": 67.6,
        "avg_low_f": 39.1,
        "precipitation_in": 15.9,
        "snowfall_in": 40.7,
        "heating_degree_days": 5261.8,
        "cooling_degree_days": 1045.2,
        "hottest_month": 7,
        "coldest_month": 12,
        "wettest_month": 5
      }
    }
  ]
}

Where the data comes from

Source: NOAA NCEI US Climate Normals 1991-2020 (public domain).
Freshness: Static decade dataset; reloaded when NOAA publishes the next normals.

One install. Every endpoint.

No proprietary SDKs needed. Any HTTP client works. Pick your language and paste.

3languages

5endpoints

RESTarchitecture

1key for all APIs

Fully typed responses — auto-completion in your IDE
Tracks the API in lockstep — new endpoints land same day
One key works across 125+ APIs on the platform

import axios from 'axios';

const { data } = await axios.get(
  'https://api-climate-normals.dataandapis.com/v1/climate',
  { headers: { 'X-Api-Key': process.env.API_KEY } }
);

Climate Normals API · X-Api-Key

Explore the endpoints

Browse request parameters and inspect live example responses.

Available Endpoints

Request Parameters

API URL

Headers

X-Api-Key

Query Parameters

lat(Required)

lon(Required)

month(Optional)

Target:

Client:

import axios from 'axios';

const url = 'https://api-climate-normals.dataandapis.com/v1/climate';
const { data } = await axios.get(url, {
  headers: { 'X-Api-Key': 'YOUR_API_KEY' }
});