September weather forecastShawnee, KS
September
Weather in September
Entering September, the summer warmth in Shawnee begins to recede as autumn sets in. The climatic transition from Summer to Autumn is characterized by a noticeable drop in temperature, which peaks at 78.4°F (25.8°C). Enriched with a dash of frequent sunlight, the city commences to embrace the cool winds of autumn. The change from summer to autumn brings a shift in climatic patterns, making it an interesting month weather-wise. Conclusively, it offers a distinctive fusion of remaining summer warmth and incoming autumnal chill during September.Temperature
The onset of September brings a small shift in high-temperatures, falling from a moderately hot 84.7°F (29.3°C) in August to a still warm 78.4°F (25.8°C). Throughout the September nights, Shawnee encounters a low-temperature of 59.9°F (15.5°C).Humidity
The average relative humidity in September is 74%.Rainfall
In Shawnee, during September, the rain falls for 11.9 days and regularly aggregates up to 2.32" (59mm) of precipitation. In Shawnee, Kansas, during the entire year, the rain falls for 131.2 days and collects up to 26.97" (685mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:48 pm. On the last day of September, in Shawnee, sunrise is at 7:14 am and sunset at 7:02 pm CDT.
Sunshine
The average sunshine in September in Shawnee is 9.2h.UV index
In Shawnee, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 5 suggests these recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Shawnee, KS
- Average high temperature in September: 78.4°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in September
Shawnee, KS
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Shawnee, KS
- Average wind speed in September: 7.2mph
The windiest months (with the highest average wind speed) are March and April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in September
Shawnee, KS
- Average humidity in September: 74%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Shawnee, KS
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in September
Shawnee, KS
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Shawnee, KS
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.91").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Shawnee, KS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Shawnee, 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 30min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Shawnee, KS
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is December (22.3 days).
The months with the least sunshine days are May and June (12.8 days).
Average UV index in September
Shawnee, KS
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Shawnee, KS
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in September
Shawnee, 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).
