The airport weather sensor for Spencer reported a sub zero Fahrenheit on Tuesday morning making for the first sub zero temperature of the season. The featured map displays the number of years whereby the long-term climate site had the first sub zero temperature of the fall/early winter season. If two or more sites tied for that year, they all got credit for having the earliest value that year. Northwestern Iowa, by far, is the favored location with some subtle topography effects over the Nishnabotna River valley in west- central Iowa. Warmer weather will be building back into the state for the rest of the week with a pleasant weekend in store and highs in the 50s.

Voting:
Good = 24
Bad = 6
Abstain = 3

Tags:   subzero   lows