5:56 PM Wednesday, August 31, 2022
Meteorological fall 2022 (the period from September 1st to November 30th) begins on Thursday.
Days continue to get shorter during the month of September with a sunset time occurring before 7 PM in Duluth starting on the 25th.
It can snow in Duluth in September, although it doesn’t happen very often. The last time we saw snow in Duluth in September was in 2012, and before that September 1995.
Here’s a look at the normals and records for Duluth, Minnesota for the month of September using the 1991-2020 climate period.
| Normal high on the 1st: 73 Normal high on the 30th: 61 Normal low on the 1st: 52 Normal low on the 30th: 42 Average monthly temperature for September 57.3 F Warmest: 62.6 F set in September 1897 Coldest: 47.8 F set in September 1974 Normal precipitation 3.48″ Wettest: 11.52″ set in September 1881 Driest: 0.19″ set in September 1952 Normal snowfall: 0.1″ Snowiest: 2.4″ set in September 1991 Average number of 80-degree days in September: 2 Average number of days with a low of 32 or colder: 1 Average date for first 32 degree or colder minimum temperature is September 30. Last year’s 1st 32 or colder minimum temperature didn’t occur until October 21. Astronomical Data for September at Duluth Sunrise on the 1st: 6:28 AM CDT Sunrise on the 30th: 7:05 AM CDT Sunset on the 1st: 7:48 PM CDT Sunset on the 30th: 6:49 PM CDT The autumnal equinox or the official start to fall 2022 begins at 8:03 PM Thursday, September 22, 2022. Note: Only 9 Septembers dating back to 1872 have had at least 0.1″ of snow, with the most recent occurring in September 2012. Here are the years that saw at least 0.1″ of snow in September (1908, 1912, 1927, 1928, 1974,1985, 1991, 1995 and 2012) Note: Only 11 Septembers dating back to 1872 have had at least one day with a high of 90 or warmer in Duluth, with the most recent occurring in September 1984. Here are the years that saw at least one day with a high of 90 or warmer in September at Duluth (1874, 1891, 1894, 1929, 1931,1947, 1961, 1976, 1978, 1983 and 1984. |
Long range forecast for September 2022
Temperature
Above normal temperatures are forecast in northeast Minnesota and northwest Wisconsin for September 2022, but that doesn’t mean we won’t get some shots of cooler temperatures mixed in, in fact much of the Northland typically gets a first frost in September.
Temperature trend for September 2022 per last 10 CFS model runs.
Above normal temps in orange and red
Below normal temps in blue
Precipitation
Below normal precipitation is forecast across northern Minnesota for September 2022, while near normal precipitation is forecast for the North Shore and northwest Wisconsin.
Precipitation trend for September 2022 per last 10 CFS model runs.
Below normal precip in yellow
Above normal precip in green
Here’s what the 500mb pattern is forecast to look like for September 2022 per CFS model.
Thanks for reading!
Tim
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