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NOUS43 KARX 010738
PNSARX
IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-032>034-
041>044-053>055-061-011809-
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
239 AM CDT TUE SEP 1 2026
..LA CROSSE, WI AUGUST 2026 CLIMATE SUMMARY
..AUGUST 2026 HIGHLIGHTS
TEMPERATURES - COOLER THAN NORMAL
THE AVERAGE TEMPERATURE AT LA CROSSE REGIONAL AIRPORT WAS 72.4°F.
THIS WAS 0.4°F COOLER THAN THE 1991-2020 NORMAL OF 72.8°F.
THE AVERAGE HIGH TEMPERATURE WAS 82.4°F. THIS WAS 0.8°F COOLER THAN
THE 1991-2020 NORMAL OF 83.2°F.
THE AVERAGE LOW TEMPERATURE WAS 62.4°F. THIS WAS 0.1°F WARMER THAN
THE 1991-2020 NORMAL OF 62.3°F.
THE WARMEST HIGH TEMPERATURE WAS 91°F ON AUGUST 31.
THE COLDEST HIGH TEMPERATURE WAS 77°F ON AUGUST 5.
THE WARMEST LOW TEMPERATURE WAS 74°F ON AUGUST 31. THE COLDEST LOW
TEMPERATURE WAS 54°F ON AUGUST 20, AND AUGUST 23-24.
THERE WAS 1 DAY IN WHICH THE TEMPERATURE WAS 90°F OR WARMER. THE
1873-2025 AVERAGE IS 3.7 DAYS.
RAINFALL - DRIER THAN NORMAL
A TOTAL OF 1.92 INCHES OF RAIN FELL AT LA CROSSE REGIONAL AIRPORT.
THIS WAS 1.98 INCHES DRIER THAN THE 1991-2020 NORMAL OF 3.90 INCHES.
THE WETTEST DAY OCCURRED ON AUGUST 18 WHEN 0.60 INCHES OF RAIN FELL.
RAIN FELL ON 12 DAYS (11 WITH MEASURABLE RAIN AND 1 DAY WITH A
TRACE).
MISSISSIPPI RIVER AT LA CROSSE - SLIGHTLY BELOW NORMAL
DURING AUGUST 2026, THE AVERAGE 7 AM STAGE FOR THE MISSISSIPPI RIVER
AT LA CROSSE WAS 5.05 FEET.
THIS WAS 0.33 FEET LOWER THAN THE 1937-2026 LONG-TERM AVERAGE OF
5.38 FEET.
THE HIGHEST DAILY 7 AM STAGE FOR THIS PAST MONTH WAS 5.43 FEET ON
AUGUST 15. MEANWHILE, THE LOWEST 7 AM DAILY STAGE FOR THIS PAST
MONTH WAS 4.73 FEET ON AUGUST 12.
..AUGUST 2026 RECORDS
NONE.
..LOOKING AHEAD TO SEPTEMBER
THE NORMAL HIGH TEMPERATURE IN LA CROSSE STARTS OFF AT 81°F ON
SEPTEMBER 1ST AND FALLS TO 69°F BY THE END OF THE MONTH. THE NORMAL
LOW TEMPERATURE STARTS OFF AT 59°F ON THE 1ST AND FALLS TO 48°F BY
THE END OF THE MONTH. THE WARMEST SEPTEMBER TEMPERATURE ON RECORD
WAS 101°F ON SEPTEMBER 6, 1922, AND THE COLDEST WAS 24°F ON
SEPTEMBER 30, 1899.
THE NORMAL MEAN TEMPERATURE FOR SEPTEMBER IS 64.8°F. LA CROSSE’S
HOTTEST SEPTEMBER OCCURRED IN 2015 WITH AN AVERAGE TEMPERATURE OF
69.3°F, AND ITS COLDEST SEPTEMBER OCCURRED IN 1918 WITH AN AVERAGE
TEMPERATURE OF 54.8°F.
THE NORMAL SEPTEMBER RAINFALL IS 3.63 INCHES. THE WETTEST SEPTEMBER
OCCURRED IN 1881 WITH 10.87 INCHES OF RAIN, WHILE THE DRIEST
SEPTEMBER OCCURRED IN 1940, WITH ONLY 0.29 INCHES OF PRECIPITATION.
THE WETTEST SEPTEMBER DAY OCCURRED ON SEPTEMBER 6, 1884, WHEN 5.55
INCHES OF RAIN FELL. NORMALLY, THERE ARE 4 DAYS WITH THUNDERSTORMS.
WHILE TYPICALLY NO SNOW FALLS DURING SEPTEMBER, MEASURABLE SNOW DID
FALL IN 1942 (0.2 INCHES ON SEPTEMBER 26).
VALLEY FOG IS QUITE PREVALENT IN THE AREA. ON AVERAGE, THIS FOG
REDUCES THE VISIBILITY TO A QUARTER-MILE OR LESS AT THE AIRPORT ON 3
DAYS.
BOYNE
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