Precipitation varies from block to block.

The precipation values shown on the home page are in real time however, its

not a perfect system. The precipitation sensor only records rain. Usually

this sensor is covered during the winter so snow/ice won't damage the unit.

A large maple tree also skews the automated rain reports.

Official precipitation reports are created daily and can be found at two locations.

The National Weather Service

Scroll half way down this page and look for:

"Latest Cooperative Observer Plots - updated hourly between 7 through 11 am"

Just below that are links to Daily Precip, Daily Snowfall, Daily Snow Depths.

Here is an example to show you Elgin's observation. "T" stands for trace.

CoCoRaHs

For archive or daily precipitation/snow totals, click on this CoCoRaHs link

and then enter: IL-KN-9 in the Station Field. That is the "Station number".

Then put in the dates that you require.