Normals & Extremes
NOAA - Climate Normals
Explore the average temperature and precipitation trends for lots of different locations around the U.S. Climate normals are calculated as 30-year averages, updated each decade. These are the most recent normals, calculated as average values between 1981 and 2010.
NOAA - Extreme Normals for U.S. Locations
This page shows the warmest/coldest/wettest/etc. locations in the continental U.S., based on the 30-year climate normals linked above. Only "major observing stations" are considered.
NOAA - Extremes for Each U.S. State
Want to see just how warm, cold, wet, or snow it's ever been in your state? This page shows records in temperature, rain, and snow for each state.