September weather forecastMahaska, KS
September
Weather in September
September, the first month of the autumn in Mahaska, is also a moderately hot month, with an average temperature ranging between min 58.3°F (14.6°C) and max 78.3°F (25.7°C).Temperature
The beginning of September brings a slight decrease in the average high-temperature, transitioning from 85.5°F (29.7°C) in August to a still moderately hot 78.3°F (25.7°C). Throughout September, the average low-temperature dips to a moderate 58.3°F (14.6°C).Humidity
In September, the average relative humidity is 69%.Rainfall
In September, the rain falls for 11.5 days. Throughout September, 1.93" (49mm) of precipitation is accumulated. Throughout the year, there are 114.7 rainfall days, and 19.65" (499mm) of precipitation is accumulated.Snowfall
In Mahaska, snow does not fall in June through September.Daylight
In Mahaska, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:57 am and sunset at 8:00 pm. On the last day of September, in Mahaska, sunrise is at 7:25 am and sunset at 7:12 pm CDT.
Sunshine
In September, the average sunshine in Mahaska is 8.8h.UV index
In September, the average daily maximum UV index in Mahaska is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: An average UV index of 5 in September transforms into this advice:
Prioritize safety - Suggestions to prevent sun damage are offered. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mahaska, KS
- Average high temperature in September: 78.3°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in September: 58.3°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in September
Mahaska, KS
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Mahaska, KS
- Average wind speed in September: 9.3mph
The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest months (with the lowest average wind speed) are July and August (8mph).
Average humidity in September
Mahaska, KS
- Average humidity in September: 69%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is October (63%).
Average rainfall in September
Mahaska, KS
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in September
Mahaska, KS
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is February (3.2 days).
Average snowfall in September
Mahaska, KS
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.93").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Mahaska, KS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mahaska, KS
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in September
Mahaska, KS
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is November (22.9 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in September
Mahaska, KS
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Mahaska, KS
- Average cloud cover in September: 27
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 24).
Average visibility in September
Mahaska, 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).
