National Weather Service United States Department of Commerce


Every ten years the National Centers for Environmental Information (NCEI) publishes new 30 year normals for the United States.  The new normals for 1991-2020 are now available.  Below are the new climate normals for the six primary climate sites in eastern Iowa and northwest Illinois with a comparison to the 1981-2010 normals.

Red means the 1991-2020 normals are warmer/drier than the old normals.  Green indicates the 1991-2020 normals are cooler/wetter than the old normals. 

You can access the new normals page at:


Note: Snowfall normals are no longer available for Burlington and Cedar Rapids.