Bangor September Weather

Averages and records for weather in Bangor, Maine in the month of September.
Typical Bangor September Weather
1991–2020
Average daily high 71.0 °F
Average daily low 48.6 °F
Average monthly precipitation 3.8 inches
Average monthly snow none
Daily chance of precipitation 31.3%
Daily chance of snow 0%
Bangor September Weather Records
1925–2024
Highest temperature 99 °F September 7, 1945
Lowest temperature 23 °F September 29, 2000
Highest daily low 70 °F September 3, 1979
Lowest daily high 44 °F September 27, 1939
Hottest average high temperature 78.9 °F 1948
Coldest average high temperature 63.5 °F 1962
Most daily precipitation 6.0 inches September 11, 1954
Most monthly precipitation 9.9 inches 1999
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 75.9 53.0 95 37
September 2 75.6 52.7 94 40
September 3 75.3 52.4 94 37
September 4 75.1 52.1 93 36
September 5 74.7 51.7 92 34
September 6 74.4 51.3 91 33
September 7 74.1 51.1 99 33
September 8 73.9 50.9 92 39
September 9 73.5 50.6 97 35
September 10 73.0 50.3 95 32
September 11 72.6 49.9 93 36
September 12 72.2 49.6 91 34
September 13 72.0 49.4 87 28
September 14 71.6 49.1 97 30
September 15 71.3 48.8 97 34
September 16 70.8 48.5 97 33
September 17 70.4 48.2 88 30
September 18 70.0 47.9 87 29
September 19 69.6 47.5 87 28
September 20 69.2 47.2 88 27
September 21 68.7 46.8 90 26
September 22 68.2 46.3 90 30
September 23 67.7 45.8 85 29
September 24 67.3 45.3 89 28
September 25 67.0 45.0 88 27
September 26 66.7 44.8 91 29
September 27 66.3 44.5 91 24
September 28 65.8 44.2 84 24
September 29 65.4 43.8 82 23
September 30 65.0 43.4 86 27
Weather Station Details
Years Station Coordinates
1953–2024 Bangor International Airport location
1925–1952 Bangor location