PlainClimate

U.S. Climate Statistics

A citable national view of the NOAA 1991-2020 Climate Normals behind PlainClimate. Each figure below is computed from the live portal database, not typed into a static report.

Key findings

What the national records show

6,861 station-mapped locations

NOAA 1991-2020 Climate Normals are represented across 6,861 station-mapped U.S. locations in this portal's current dataset, each keyed to its own primary weather station.

66.1°F spread

The gap between the coldest (13°F) and warmest (79°F) annual-average location record in the dataset is 66.1°F, a measure of national climate range, not a single day's weather.

53.3°F average

The mean annual-average temperature across all 6,861 tracked station-mapped locations is 53.3°F, with a mean annual precipitation of 35.0".

76.7°F swing

Central, AK has the widest gap between its warmest and coldest average month in the dataset, 76.7°F, against a national average swing of 42.4°F.

North Dakota

North Dakota has the coldest average winter (Dec-Feb) temperature of any state with tracked locations, at 13°F, based on 119 stations.

Arizona

Arizona has the clearest average sky-cover reading of any state with hourly-normal stations: 71.3% clear observations, from 7 stations (cloud-cover frequency, not measured sunshine hours).

Coldest states by winter temperature

Average December-February temperature across each state's tracked station-mapped locations. Hawaii runs warmest in this comparison, at 69°F.

Coldest states, winter average temperature

NOAA 1991-2020 Climate Normals, Dec-Feb station-mapped-location average

°F
Source NOAA 1991-2020 U.S. Climate Normals As of 2026-07-31
Coldest states, winter average temperature. 8 bars; values are listed in the chart.
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Sources, scope, and reuse

PlainClimate derives every figure above from NOAA's 1991-2020 U.S. Climate Normals. See the methodology for source scope and refresh details, browse the station-mapped location profiles for local context, or cite this report using the stable path below. The report's derived presentation is released under CC0; the upstream NOAA source data retains its own terms.

Download location normals (CSV, all 6,861 station-mapped locations) Download location normals (JSON) Download state normals (CSV, all 51 states) Download state normals (JSON) Download place identity crosswalk (CSV, all 6,861 locations) Download place identity crosswalk (JSON) View data catalog

Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This national report aggregates the same source fields used on PlainClimate's station-mapped location and state pages. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-07-31.