About PlainClimate
PlainClimate shows the climate of 4,764 U.S. places and 2,483 other NOAA weather stations from NOAA's 1991-2020 normals (each month and day, frost dates, records and how recent years compare), and of 430 more places of 50,000+ people without a station of their own from NOAA's gridded normals. Each section names its source, and its station where there is one.
First published · revised
What it is for
People ask what a place's weather is like in a given month, when the last frost comes, whether it snows, how humid the summers are. NOAA publishes the answers for thousands of stations in files built for meteorologists. PlainClimate puts each station's figures on one page for the place it stands for, in sentences and tables, and links the file so anyone can check them.
Where the figures come from
Mostly from NOAA's National Centers for Environmental Information (station, gridded and statewide normals, state records) and the NOAA Regional Climate Centers' ACIS service; sunshine from NASA's POWER project; hardiness zones from the USDA's 2023 map (ZIP listings by the PRISM Group, Oregon State University); places, populations and ZIP areas from the Census Bureau. Data sources lists each one and the methodology every check and limit.
What it is not
This information is for general reference only and is not professional advice of any kind: not a forecast, not a safety warning and not a guide to where you should live. For warnings and forecasts, use the National Weather Service at weather.gov.
Who runs it
PlainClimate is published by Kiznis Studio, a small independent studio based in Lithuania whose sites each cover a single public-data subject. The studio builds this site's data pipeline and pages with AI tools, and automated tests compare the figures with the source files before each release. It accepts no payment from the places it covers. Advertising is meant to pay for the site: its pages carry Google AdSense's code, and ads appear once Google approves the site.
Who checks it
PlainClimate's data editor is a role, not a person: the checks it runs before every release of the database are listed, with the date each last ran, in the methodology. The role is carried out with AI agents and scripts under Kiznis Studio's direction. No figure on the site is typed by hand: each comes from a query over a named public file, and each section names that file, and the station where there is one.
How current it is
The normals are NOAA's 1991-2020 set, released in May 2021; the next set will cover 2001-2030. The station records, recent years and statewide series in this edition run through August 2026 and are refreshed when the database is rebuilt.
Contact and corrections
Write to hello@plainclimate.com. A reported error is traced to its source, fixed in the pipeline and listed on the corrections page.