Preliminary Local Climatological Data

Unofficial Data

Please note this information is preliminary and subject to revision. Official and certified climate data can be accessed at the National Climatic Data Center -

The current month F6 is updated every morning with the most recent data. The current month's F6 in progress may be obtained via the following links.

End-Of-Month F6 reports may be obtained using the following selection form. Select the site, month and year of the F6 you desire and then click on the "Submit Query" button. Please note that End-Of-Month updates are normally posted before 4:00 PM on the first normal business day of the following month.

If the combination of Month and Year selected is not available, the current month's F6 in progress will be returned.

F6 data for Grand Rapids, Lansing and Muskegon goes back to January 2001

F6 data for Kalamazoo, Battle Creek, Jackson and Holland goes back to January 2012

Explaination of F6 Data is the U.S. government's official web portal to all federal, state and local government web resources and services.