Most of the precipitation that fell on Thursday over Iowa was at temperatures above freezing. Is that rare for the first week of February? The featured chart presents the weekly frequency of hourly precipitation reports from the Des Moines Airport with air temperatures at or above 32°F. A caveat is that frozen precipitation can hit the ground with temperatures slightly above freezing. For the first week of February, the frequency is about 25%. The chances of these mostly rain events dramatically increases by the end of this month with above freezing events becoming the most common in March.

Voting:
Good = 87
Bad = 11

Tags:   climate   precip