Dry Summer Turns into Wet September at NWS Marquette

A constant issue over the past few months has been the gradually worsening drought conditions throughout Upper Michigan, especially across the Keweenaw Peninsula and Marquette and Baraga counties. After heavy rainfall across much of the Upper Peninsula on June 21st and 22nd, dry conditions developed. The National Weather Service Office in Negaunee Township posted the driest June 23rd through September 22nd period on record. For that period, the 3.31" observed was far less than the next two driest (4.28" in 1976 and 5.25" in 1981).

Then, the last week of September saw a complete reversal of the dry trend when 5.49" of precipitation was measured at the NWS office from September 23rd-30th. This shattered the old record of 2.93" for the same period in 1985 and also resulted in the 5th wettest September on record (6.75"). The heavy rains were attributed to a nearly stationary low pressure system across the western Great Lakes followed by an intense early autumn low pressure system, which brought a storm total of 3.09" of precipitation to the NWS office. Most areas of the U.P. showed similar trends since June, particularly Alger, Schoolcraft and Luce counties.

Note: Weather records at the National Weather Service office located in Negaunee Township date back to 1961.

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