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Showing posts from August, 2018

Warm May-July Confirmed

Warm May-July Confirmed: Earlier this month NOAA scientists confirmed that for the 48 contiguous states of the USA the three month period from May through July was the warmest in history, back to 1895, surpassing the previous record year for the 3-month period set way back in 1934.

Specifically for the same time period (May-July) how did Minnesota rank? On a statewide basis the May-July 2018 period was the 6th warmest back to 1895. The only warmer 3-month periods were in 1934, 1977, 1987, 1988, and 2012. However within our state boundaries there was some regional disparity. Here are the rankings by region of the state:

NW-4th warmest

NC-3rd warmest

NE-9th warmest

WC-6th warmest

C-10th warmest

EC-8th warmest

SW-7th warmest

SC-9th warmest

SE-5th warmest

This follows a warming trend which shows that since 2000 the May-July period has warmed by about 1.5 degrees F on a statewide basis. Speaking of warmth, through the first half of August Minnesota reports average temperatures that a…

August Starts Wet for Some

August Starts Wet for Some: The first five days of the month brought some heavy rains to many parts of the state as many climate stations reported over 1.5 inches. There were strong thunderstorms over portions of central Minnesota over August 3-4 with a weak tornado reported on the ground for 11 miles across portions of Kandiyohi and Meeker Counties (see State Climatology Office Summary).

Some portions of Stearns and Benton Counties reported over 3 inches of rain. Lake Wilson, Moose Lake, Brainerd, and Gull Lake all reported new daily rainfall records on the 4th with amounts ranging from 1.5 to 2.5 inches. Lake Wilson (Murray County) with 30.17 inches, Redwood Falls (Redwood County) with 30.26 inches, and St James (Watonwan County) with 31.63 inches since January 1 are reported some of their wettest values in history for the first 8 months of the year, surpassed only by the wet years of 1979 and 1993.

Conversely portions of Roseau and Lake of the Woods Counties remain in moderate dr…

July Climate Summary

July Climate Summary:
After beginning the month very warm, temperatures moderated for much of the second half of the month from below normal to near normal. Still most climate stations reported a warmer than normal July, with average monthly values ranging from 1 to 3 degrees above average. A few places in the state reported slightly below normal mean monthly temperatures. The extremes ranged from 97 degrees F at Theilman (Wabasha County) on the 13th to 37 degrees F at Goodridge (Marshall County) on the 27th.


During the first half of the month three daytime maximum temperature records were set or tied within the climate station network, while 36 warm nighttime low temperature records were set or tied. Numerous Heat Advisories and Excessive Heat Warnings were issued by the National Weather Service during the first half of July. In the second half of the month no temperature records were set.


Most climate observers reported above normal rainfall during July. The wettest areas of …