Bay City September Weather

Averages and records for weather in Bay City, Texas in the month of September.
Typical Bay City September Weather
1991–2020
Average daily high 88.9 °F
Average daily low 70.4 °F
Average monthly precipitation 5.7 inches
Average monthly snow none
Daily chance of precipitation 33.2%
Daily chance of snow 0%
Bay City September Weather Records
1909–2024
Highest temperature 109 °F September 4, 2000
Lowest temperature 46 °F September 28, 1942
Highest daily low 83 °F September 1, 2020
Lowest daily high 64 °F September 22, 1995
Hottest average high temperature 94.8 °F 2023
Coldest average high temperature 81.5 °F 1913
Most daily precipitation 9.1 inches September 18, 2019
Most monthly precipitation 20.0 inches 1961
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 91.1 73.1 103 61
September 2 91.0 73.0 102 63
September 3 90.8 72.8 103 63
September 4 90.7 72.7 109 58
September 5 90.6 72.6 108 59
September 6 90.4 72.5 98 60
September 7 90.3 72.3 100 60
September 8 90.1 72.1 101 60
September 9 89.9 71.9 103 57
September 10 89.8 71.7 101 62
September 11 89.6 71.5 99 58
September 12 89.5 71.3 98 56
September 13 89.4 71.0 99 59
September 14 89.2 70.8 98 56
September 15 89.0 70.5 96 56
September 16 88.9 70.3 97 57
September 17 88.7 70.0 99 59
September 18 88.6 69.7 98 52
September 19 88.4 69.5 98 52
September 20 88.2 69.3 99 57
September 21 88.1 69.1 100 54
September 22 87.9 68.8 98 51
September 23 87.7 68.6 97 53
September 24 87.4 68.3 97 50
September 25 87.2 68.0 100 51
September 26 87.0 67.7 95 53
September 27 86.8 67.4 95 46
September 28 86.6 67.1 96 46
September 29 86.5 66.8 98 48
September 30 86.2 66.6 96 47
Weather Station Details
Years Station Coordinates
1909–2024 Bay City Water Works location