September weather forecastBrewster, KS
September
Weather in September
September, the first month of the autumn in Brewster, is still a warm month, with temperature in the range of an average high of 80.4°F (26.9°C) and an average low of 59.2°F (15.1°C).Temperature
September indicates a minor shift in the average high-temperature, from August's tropical 88°F (31.1°C) to a moderately hot 80.4°F (26.9°C). Throughout September, a steady low-temperature average of 59.2°F (15.1°C) is noted.Humidity
In September, the average relative humidity is 51%.Rainfall
In Brewster, in September, during 9.5 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. Throughout the year, in Brewster, there are 106.9 rainfall days, and 14.45" (367mm) of precipitation is accumulated.Snowfall
In Brewster, snow does not fall in June through September.Daylight
In Brewster, the average length of the day in September is 12h and 26min.On the first day of September in Brewster, sunrise is at 7:14 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 7:29 pm CDT.
Sunshine
In September, the average sunshine is 9.8h.UV index
The average daily maximum UV index in September in Brewster is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Brewster, KS
- Average high temperature in September: 80.4°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is December (41.7°F).
- Average low temperature in September: 59.2°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is December (25°F).
Average pressure in September
Brewster, KS
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).
Average wind speed in September
Brewster, KS
- Average wind speed in September: 11.1mph
The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is August (10.2mph).
Average humidity in September
Brewster, KS
- Average humidity in September: 51%
The months with the highest relative humidity are January, February and December (62%).
The month with the lowest relative humidity is July (49%).
Average rainfall in September
Brewster, KS
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is May (2.28").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in September
Brewster, KS
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is November (3.5 days).
Average snowfall in September
Brewster, KS
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.01").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Brewster, KS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Brewster, KS
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).
Average sunshine days in September
Brewster, KS
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is November (22.9 days).
The month with the least sunshine days is July (12.1 days).
Average UV index in September
Brewster, KS
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Brewster, KS
- Average cloud cover in September: 19
The month with the most cloud cover is February (Cloud cover 32).
The month with the least cloud cover is June (Cloud cover 18).
Average visibility in September
Brewster, KS
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





