Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September signals a slight drop in average high-temperature, sliding from August's comfortable 64.8°F (18.2°C) to a mild 58.8°F (14.9°C). A sharp divergence from daytime highs is noted during the month of September, with the average nighttime temperature settling at a wintry 34.3°F (1.3°C).Humidity
In Winfield, the average relative humidity in September is 59%.Rainfall
In Winfield, in September, it is raining for 11.8 days, with typically 1.3" (33mm) of accumulated precipitation. In Winfield, during the entire year, the rain falls for 120.6 days and collects up to 19.29" (490mm) of precipitation.Snowfall
January through December are months with snowfall. In September, it is snowing for 3.2 days. Throughout September, 1.14" (29mm) of snow is accumulated. Throughout the year, there are 142.6 snowfall days, and 90.39" (2296mm) of snow is accumulated.Daylight
In Winfield, the average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:35 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:49 pm MDT.
Sunshine
In Winfield, the average sunshine in September is 10.8h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 3 suggests these recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September in Winfield?
How much does it rain in September?
How many days does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Winfield, CO
- Average high temperature in September: 58.8°F
The warmest month (with the highest average high temperature) is July (66.7°F).
The month with the lowest average high temperature is December (23.5°F).
- Average low temperature in September: 34.3°F
The month with the highest average low temperature is July (40.1°F).
The coldest months (with the lowest average low temperature) are January and December (2.7°F).
Average pressure in September
Winfield, CO
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is April (29.94"Hg).
Average wind speed in September
Winfield, CO
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).
Average humidity in September
Winfield, CO
- Average humidity in September: 59%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is June (51%).
Average rainfall in September
Winfield, CO
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is July (2.83").
The driest month (with the least rainfall) is November (0.91").
Average rainfall days in September
Winfield, CO
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is November (3.9 days).
Average snowfall in September
Winfield, CO
- Average snowfall in September: 1.14"
The month with the highest snowfall is March (15.08").
The month with the least snowfall is August (0.31").
Average snowfall days in September
Winfield, CO
- Average snowfall days in September: 3.2 days
The month with the highest number of snowfall days is March (20 days).
The month with the least snowfall days is August (1.3 days).
Average daylight in September /
Average sunshine in September
Winfield, CO
- Average daylight in September: 12h and 2min
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: 10h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days in September
Winfield, CO
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is April (6.1 days).
Average UV index in September
Winfield, CO
- Average UV index in September: 3
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in September
Winfield, CO
- Average cloud cover in September: 20
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 17).
Average visibility in September
Winfield, CO
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Winfield, Colorado, USA
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