National Weather Service United States Department of Commerce

Labor Day occurs each year between September 1st and September 7th.  Below are some weather statistics for La Crosse, WI and Rochester, MN for this holiday.

La Crosse, WI:

The following statistics comprises 139 years of data. From 1882 through 1950, the data came from various locations in downtown La Crosse. Since 1950, the data has been gathered at La Crosse Regional Airport.

Labor Day in La Crosse, WI
(Period of Record 1882-2020
)
Means
Records
Maximum Temperature
77°F - 79°F
Warmest High Temperature
98°F
September 1, 1913
Coldest High Temperature
59°F
September 1, 1924
Minimum Temperature
56°F - 58°F
 
Warmest Low Temperature
73°F
September 7, 1959
September 6, 1886
Coldest Low Temperature
42°F
September 7, 1953
Average Temperature
67°F - 69°F
 
Warmest Average Temperature
82.0°F
September 7, 1959
Coldest Average Temperature
53.5°F
September 2, 1946
Precipitation
0.12"-0.13"
Wettest
2.30"
September 3, 1934

 

The odds of having any precipitation at all on Labor Day is 40.3% (56out of 139).  There has been measurable (0.01" or greater) precipitation on 39 Labor Days (28.1%) and trace amounts (less than 0.01") on 17 Labor Days (12.2%).  Measurable rain has fallen on 8 of the last 11 Labor Days.

On Labor Day in 2020 (September 7), the high temperature was 70°F (coldest since 2013 when the high temperature was also  70°F), the low temperature was 54°F, and trace of rain fell. The average wind speed was 10.7 mph.

Rochester, MN:

The following statistics comprises 110 years of data. From 1887 through 1931, the data came from several cooperative observers in the Rochester area. Since 1932, the data has been gathered at Rochester International Airport. No data was taken on Labor Day in 1902 and from 1921 to 1928.

Labor Day in Rochester, MN
(Period of Record 1887-2020)
Means
Records
Maximum Temperature
72°F - 74°F
Warmest High Temperature
95°F
September 4, 1893
Coldest High Temperature
58°F
September 6, 1965
Minimum Temperature
52°F - 54°F
 
Warmest Low Temperature
72°F
September 5, 1960
Coldest Low Temperature
37°F
September 2, 1946
September 7, 1953
September 2, 1974
Average Temperature
62°F - 64°F
Warmest Average Temperature
82.5°F
September 5, 1960
Coldest Average Temperature
50.0°F
September 2, 1974
Precipitation
0.12"
Wettest
2.39"
September 7, 1964

 

The odds of having any precipitation at all on Labor Day is 48.1% (51 out of 107).  There has been measurable (0.01" or greater) precipitation on 41 Labor Days (38.3%) and trace amounts (less than 0.01") on 11 Labor Days (10.3%).  Measurable rain has fallen on 7 of the last 11 Labor Days.

On Labor Day in 2020 (September 7), the high temperature was 62°F (6th coldest Labor Day), the low temperature was 48°F, and a trace of rain fell. The average wind speed was 13 mph.


The following weather events have occurred on Labor Day in southeast Minnesota, northeast Iowa, and western Wisconsin:

  • In 1913 (September 1st), Grand Meadow MN had a high temperature of 100 degrees. This is still their hottest September temperature. This is still the hottest Labor Day in following locations:  Decorah IA (100°F), Fayette IA (100°F), La Crosse WI (98°F), Red Wing MN (100°F), and Winona MN (101°F).
  • In 1938 (September 5th), Osage IA received 4.03" of rain. Also on this date, La Crosse WI started a streak of ten consecutive days with measurable rainfall. The streak ran through September 14th, with a total of 6.89" falling during the period.
  • In 1939 (September 4th), Mauston WI received 3.00" of rain.
  • In 1964 (September 7th), Rochester MN received 2.39" of rain.
  • In 2002 (September 2nd), a tornado touched down about a mile northwest of Gilman WI and moved southeast into the village a couple minutes later. A few trees and homes were lightly damaged before the tornado hit the Gilman school. The roof was blown off the school gymnasium, where the high school football team had been seeking cover a minute before moving into the hallways and interior rooms. Debris was blown from the school onto the nearby football field and into homes east of Gilman. The tornado kept tracking southeast into the Chequamegon National Forest, producing occasional house damage and knocking down hundreds of trees. The worst damage was found near the end of the path (along Sawyer Avenue) west of Medford WI where the top of a two-story house was sheared off. There were no reports of deaths or injuries. This was the first confirmed tornado in Taylor County, WI since 1977. This was the same day as the Ladysmith Tornado.
  • In 2018 (September 3rd), both La Crosse and Rochester tied their 10th warmest low temperature recorded on a Labor Day.  The low temperature was 64°F at Rochester.  This was tied with 1912, 1913,1929,1973, and 1996. The low temperature was 67°F at La Crosse.  This was tied with 1889, 1894, and 1929.  In addition to the unusually warm low temperatures, 0.61" of rain fell at La Crosse Municipal Airport.  This made it the 6th wettest Labor Day.
  • In 2019 (September 2nd), Rochester International Airport received 1.69" of rain.  This made it their 2nd second wettest Labor Day.  Only 1964 (September 7) was wetter with 2.39" of rain.
  • In 2020 (September 7th),  Rochester International Airport had a high temperature of 62°F.  This was the 6th coldest high for Labor Day and the coldest high on Labor Day since 1965 (coldest high temperature on a Labor Day).