Image (click to enlarge): Median date of first freezing temperature, from Midwestern Regional Climate Center, via National Weather Service
The low temperature of 19° this morning at International Falls, Minnesota was the coldest ever reported so early in the season and an all-time record low for September. The National Weather Service reports:
The low temperature at 7:06 am this morning at International Falls was 19 degrees. This breaks the record low for a September 15th, 24 degrees, set in 1964. This is the coldest temperature reported for so early in the season. This also marks the first time in station history that a temperature in the teens has been recorded in the month of September.The low temperature at Embarrass also reached 19°. The low of 36° at Minneapolis tied the record for the date from 1964 and 2007. The 29° at Eau Claire broke the record of 30° from 2007. Other record lows included:
Rochester MN 31The record lows follow a near-record streak of 80° days at Duluth ending Monday:
Prairie Du Chein WI 27
Viroqua WI 31
Today, September 12th, marks the 5th consecutive day of an 80 degree temperature at Duluth. Only two other stretches have been as long or longer than this in the month of September. Six consecutive days above 80 is the record set in 1906, September 5-10. The other 5 day string was in 1948 from September 1-5.