Idaho local data guide

Finding Historical Climate Data for Boise, Idaho

Historical climate data for Boise, Idaho, is primarily managed by the National Weather Service (NWS) and the National Oceanic and Atmospheric Administration (NOAA). The NWS Boise office offers accessible summaries and visual graphs for preliminary planning, while the NOAA National Centers for Environmental Information (NCEI) serves as the official, certifiable repository for detailed historical climate records.

Updated with grounded research as of 2026-08-27.

The short answer

If you are researching Boise's climate for relocation, housing, or property planning, you can access historical weather data through two primary federal channels. For general planning and quick reference, the National Weather Service Boise office provides user-friendly summaries. For legal, certified, or highly technical needs, the National Centers for Environmental Information offers the definitive archive of historical datasets.

Key facts

NWS Boise WeatherStats
The National Weather Service Boise office maintains a portal specifically for local climate graphs, monthly and yearly summaries, and past weather reports known as 'WeatherStats'.
NOAA NCEI Climate Data
The National Centers for Environmental Information (NCEI) functions as the official repository for climate data, including station history and certified records required for legal proceedings.

Using the National Weather Service (NWS) for General Research

For those exploring Boise for a potential move or project, the NWS Boise 'WeatherStats' page is the most accessible entry point. It translates raw meteorological data into easy-to-read charts and tables.

  • Access quick-reference tables for daily temperature and precipitation records.
  • Review monthly and annual summaries to understand seasonal variability.
  • Use these tools for preliminary research on local climate conditions at the Boise Air Terminal and surrounding regional stations.

Accessing Official Records via NOAA/NCEI

When you require verified or certified climate data—often necessary for property development, insurance claims, or legal disputes—you should use the NCEI databases.

  • Use 'Climate Data Online' (CDO) to search and download historical datasets for specific stations across Idaho.
  • Utilize 'Climate at a Glance' for long-term trend analysis and time-series data.
  • Request certified, hard-copy weather records that are legally admissible for court or official planning documents.

Data Availability and Geography

While major hubs like the Boise Air Terminal have extensive and long-standing historical records, data availability can vary for more remote or less populated areas in Idaho.

If you are planning for a specific property location, verify whether the nearest weather station has a sufficient period of record to be useful for your specific needs.

Common questions

Is the data on the NWS Boise website considered official?

The climate data provided on the NWS Boise 'WeatherStats' page is often preliminary or intended for general information. While highly reliable for planning, it should not be used for legal or official certified purposes.

Where can I get certified weather records for a legal matter in Idaho?

You must request certified records through the National Centers for Environmental Information (NCEI) website. They provide official documentation that is admissible in legal proceedings.

Related Idaho questions

  • What are the current climate normals for Boise, Idaho?
  • How do I request certified weather records for legal purposes in Idaho?
  • Where can I find drought monitoring information for Idaho?

Sources and verification