July Climate Summary
Average monthly temperatures were generally from 4°F to 6°F above normal across the state, placing this month among the 5 or 6 warmest Julys in state history. In northeastern Minnesota some climate stations reported their 2nd warmest July in history, while in north-central Minnesota it was the third warmest.
Many climate observers reported 12 or more days with maximum temperatures of 90°F or greater, and some reported as many at 15 such days. Climate observers in 7 counties reported at least one day with a maximum temperature of 100°F or greater. Remarkably, both Kettle Falls (100°F on the 14th) and Seagull Lake (101°F on the 13th) reported temperatures reaching the century mark for the first time in history there.
The NOAA National Weather Service issued multiple Heat Advisories and Extreme Heat Warnings during the month, with Heat Index Values over 100°F at dozens of locations around the state. In fact on Sunday, July 26 Heat Index Values reached near record or record values at some locations in the southern and central counties of the state, ranging from 110°F to 120°F. St James in Watonwan County reported a Heat Index of 122°F on that date. The NOAA-National Weather Service Forecast Office in Chanhassen included a summary of the heat on their web page.
Almost all of the Heat Advisories and Extreme Heat Warnings were provoked by very high dew points, which ranged from 75°F to 85°F at times. In fact, some climate stations reported multiple days with dew points of 80°F or higher, record-setting at most locations.
The heat was persistent with most observers reporting 26 or 27 days with warmer than normal temperatures and only 4 or 5 with cooler than normal temperatures. Within the state climate station network, we set or tied 45 daily high maximum temperature records, including 98°F on the 12th and 97°F on the 13th at International Falls (the nation’s Ice Box). We also set or tied daily warm minimum temperature records 72 times including 75°F at Baudette on the 13th and 14th.
Temperature extremes for the month were 104°F an Meander (St Louis County) on the 13th and 35°F at Wolf Ridge Environmental Learning Center (Lake County) on the 6th. There were a number of days during the month when northern Minnesota was warmer than southern Minnesota, a real anomaly for the month of July.
In the Twin Cities, a record was established for the month of July as 19 days brought an overnight minimum temperature of 70°F or higher, breaking the record of 18 days from July of 1935. For the Twin Cities climate record, this July was the 6th warmest in history based on mean monthly temperature. The Twin Cities finished July with 14 days bringing high temperatures of 90°F or greater, the most since July of 2006. The Twin Cities also reported a maximum temperature of 100°F on July 27th.
With most fire outbreaks triggered by lightning storms, close to 25 wildfires were reported in July. Their spread and ferocity was amplified by the heat and dryness as they burned over 77,00 acres mostly across the Superior National Forest, closing down the BWCA. Even at month’s end, a number of fires were nowhere near fully contained.
July was drier than normal in most areas of Minnesota, except for some south-central and southeastern counties where strong thunderstorms brought above normal rainfall. At least a dozen climate stations in those areas reported record daily rainfall amounts, including 7.30 inches at Grand Meadow, 5.41 inches at Preston and 5.28 inches at Caledonia on July 2nd, and 5.95 inches at Austin on July 9th. Conversely, many northern areas of the state reported less than 1.50 inches of rain for the entire month. Some of the extreme wet and dry rainfall totals for the month include:
13.39 inches at Spring Valley (Fillmore County)
13.20 inches at Grand Meadow (Mower County)
11.88 inches at Austin (Mower County)
10.27 inches at Ellendale (Steele County)
0.87 inches at Pequot Lakes (Crow Wind County)
0.90 inches at Lake Wilson (Murray County)
1.20 inches at Pine River Dam (Crow Wing County)
1.28 inches at Kettle Falls (St Louis County)
Please note these figures exclude most of the substantial rainfall from July 30-31, some of which will be reported as rainfall on August 1st because of the observers observation cycle. This is unfortunate because some of the rainfall for July 31 was record-breaking, such as the 2.16 inches at Wheaton (Traverse County) and 1.57 inches at Marshall (Lyon County). Some other observers reported 3 inches or more.
With the drier than normal month in most areas of the state, drought expanded by three-fold in terms of state area designated to be in either Moderate Drought or Severe Drought. As the month finished this week, Moderate Drought occupied 41 percent of the state landscape and Severe Drought occupied 35 percent.
The USDA weekly crop condition report for Minnesota this week showed a disturbing trend. Reports show that the percent of the state corn crop in good to excellent condition dropped to 77 percent, while the percent of the state soybean crop in good to excellent condition dropped to 78 percent. In these combined categories crop conditions for both crops had been above 80 percent all summer, but the heat and dryness definitely had some negative consequences.
More details on the July climate in Minnesota can be found at the Minnesota State Climatology Office web site under the Climate Journal section.
Weekly Weather Potpourri:The United Kingdom Environmental Agency declared this week that half of the country is now in drought and water conservation measures will be emphasized. River volume is low, wildfire risk is increasing and some farmers are harvesting crops early. This is the third drought in the past 5 years (2022, 2025, and now 2026). Heat waves have added to the negative impacts.
This week’s AGU-EOS Bulletin has a fascinating article about recent research into derechos (straight line wind storms) that occur across the USA. Scientists have compiled a detailed 70 year archive of such storms and are finding they form in three regions of the USA: the Midwest/Ohio Valley, the Northern Plains, and the Southern Plains. They are also responsible for some of the most widespread power outages ever reported in the USA.
MPR listener question:We saw that the Twin Cities did hit the century mark in temperature this month with a maximum temperature of 100°F on the 27th. How often do we see 100°F or greater during July from a historical basis?
Answer:In the last 155 years of climate records for the Twin Cities, July has brought at least 100°F or greater day only 26 times (about 17 percent of the time). It happened 8 times in July of 1936, and the last time July produced a 100°F or greater temperature in the Twin Cities was 2012.
Twin Cities Almanac for July 31st:
The average MSP high temperature for this date is 83 degrees F (plus or minus 6 degrees F standard deviation), while the average low is.65 degrees F (plus or minus 6 degrees F standard deviation).
MSP Local Records for July 31st:
MSP records for this date: highest daily maximum temperature of 105 degrees F in 1988; lowest daily maximum temperature of 68 degrees F in 1898; lowest daily minimum temperature of 47 degrees F in 1924; highest daily minimum temperature of 80 degrees F in 2006, and record precipitation of 0.79 inches in 1911. No snowfall has occurred on this date.
Average dew point for July 31st is 60°F; the maximum dew point on this date is 78°F in 1987 and the minimum dew point on this date is 39 degrees F in 1936.
All-time statewide records for July 31st:The state record high temperature for this date is.110 degrees F at Madison (Lac Qui Parle County) in 1988. The state record low temperature for this date is 31 degrees F at Sawbill Camp (Cook County) in 1937. The statewide record for precipitation on this date is 6.70 inches at Albert Lea (Freeborn County) in 1961. No snow has fallen on this date.
Past Weather:On July 31 of 1903, 14 communities in northern Minnesota reported morning low temperatures in the 30s F. There was even frost in the area around Warroad. Under constant cloud cover and with a cool north wind, the climate observer at Luverne (Rock County) reported a daytime high temperature of only 57°F.
July 31 of 1988 brought record-setting high maximum temperatures to most parts of Minnesota. After temperatures of 100°F or greater were reported from 37 counties. In Kandiyohi County it was a difficult night to sleep as the overnight low was a very warm 80°F.
During the record-setting wet summer of 1993, strong thunderstorms brought 2-4 inches of rain to many parts of southern and central Minnesota. New London (Kandiyohi County) reported over 5 inches of rain. This storm concluded a very wet month of July, with many climate stations reporting total monthly rainfall from 7 to 11 inches.
Outlook:Temperatures fall back closer to normal and even cooler than normal in sone places over the weekend and remain that way through the first week of August. There will be an increasing chance for showers and thunderstorms beginning later on Monday and into Wednesday. Mostly sunny days thereafter to the weekend.