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A look at the climate for 2018 so far for Minnesota

A look at the climate of 2018 so far for Minnesota: On a statewide basis we just concluded the 12 warmest June-August period in state history. In addition it was the 24th wettest summer back to 1895, but with great disparity, notably surplus rainfall in the south and deficit rainfall in the northwest.

Also on a statewide basis the first 8 months of the year averaged only about 1°F above normal, but it was the 4th year in a row, and 15 out of the last 20 years that the first 8 months of the year have produced an above average statewide temperature. In addition the first 8 months of 2018 brought a statewide average precipitation about two-thirds of an inch above normal, the 9th consecutive year this has happened.

So, when we talk about Minnesota getting warmer and wetter with each passing decade, it appears that the year 2018 will follow that trend line.
Gusty winds: The month of September is not known as one of Minnesota’s windiest months, but the last three days have brought a go…
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Climate Summary for August

Climate Summary for August:
After a warm first half of the month when many climate stations reported record-setting warm overnight minimum temperatures, the climate moderated and most observers are reporting a mean monthly temperature that ranges from 1 to 2 degrees F warmer than normal. The extremes for the month were 99°F at Preston (Fillmore County) on the 14th, and 34°F at International Falls (Koochiching County) on the 2nd.

For August rainfall, most northern counties reported below normal totals for the month, while many central and southern counties reported above normal rainfall for the month. The heaviest rainfall events came near the beginning of the month, and then again near the end of the month. During the course of the month 28 new daily rainfall records were reported in the state climate observer network. Extreme rainfall totals for the month ranged from over 11 inches at Caledonia (Houston County) to just over 1 inch at Browns Valley (Traverse County).

The other…

Climate Signatures in 2018

Climate Signatures in 2018: A certain high degree of variability is evident in the Minnesota climate statistics so far this year. Some examples:

-For the January through August period, both average statewide temperature and precipitation are pretty close to the 30-yr averages.

-But for the May-August period this year ranks as the 2nd warmest historically, trailing only the growing season of 1988. And this is mostly thanks to very warm nights.

-Though the statewide May-August rainfall has been near normal, there is great disparity across the state. The southwestern counties have had the 2nd wettest May-August period in history with an average of nearly 23 inches (2nd only to 1993), while the south-central counties have reported the 8th wettest May-August period with an average of nearly 22 inches. Conversely, northwestern counties, which are in a moderate drought, have reported an average of less than 10 inches for the May-August period, ranking as the 12th driest in history back …

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…