Moscow September Weather

Averages and records for weather in Moscow, Idaho in the month of September.
Typical Moscow September Weather
1991–2020
Average daily high 76.3 °F
Average daily low 42.5 °F
Average monthly precipitation 1.0 inches
Average monthly snow none
Moscow September Weather Records
1893–2023
Highest temperature 100 °F September 5, 1973
Lowest temperature 20 °F September 25, 1934
Highest daily low 66 °F September 13, 1959
Lowest daily high 38 °F September 24, 1934
Hottest average temperature 7.6 °F
above average
1938
Coldest average temperature -10.6 °F
below average
1895
Most daily precipitation 1.9 inches September 16, 1947
Most monthly precipitation 4.2 inches 1940
Most daily snow none -
Most monthly snow none -
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
September 1 81.4 45.3 98 29
September 2 81.0 45.1 98 29
September 3 80.6 45.0 99 33
September 4 80.2 44.8 99 30
September 5 79.7 44.6 100 32
September 6 79.2 44.3 96 30
September 7 78.9 44.1 95 29
September 8 78.6 43.8 96 26
September 9 78.3 43.7 92 29
September 10 78.0 43.5 94 27
September 11 77.6 43.4 95 25
September 12 77.2 43.2 94 26
September 13 76.8 42.9 90 25
September 14 76.6 42.6 94 22
September 15 76.4 42.5 95 24
September 16 76.1 42.4 93 27
September 17 75.8 42.2 98 26
September 18 75.3 41.9 98 25
September 19 74.8 41.7 92 26
September 20 74.2 41.4 91 28
September 21 73.8 41.1 95 25
September 22 73.3 40.8 94 26
September 23 72.9 40.6 94 25
September 24 72.5 40.5 94 23
September 25 72.0 40.3 91 20
September 26 71.4 40.0 90 25
September 27 70.8 39.8 91 24
September 28 70.2 39.5 91 23
September 29 69.6 39.3 92 21
September 30 69.1 39.1 88 25
Weather Station Details
Years Station Coordinates
1893–2023 University of Idaho location