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
South Greeley's weather subtly changes with the onset of September, barely falling from 81.1°F (27.3°C) in August to a still warm 73.8°F (23.2°C). An average low-temperature of 52.3°F (11.3°C) is recorded in the month of September.Humidity
In South Greeley, the average relative humidity in September is 44%.Rainfall
In September, the rain falls for 8.4 days. Throughout September, 0.87" (22mm) of precipitation is accumulated. Throughout the year, there are 116 rainfall days, and 14.57" (370mm) of precipitation is accumulated.Snowfall
In South Greeley, snow does not fall in June through September.Daylight
The average length of the day in September in South Greeley is 12h and 27min.On the first day of the month, sunrise is at 6:26 am and sunset at 7:31 pm. On the last day of September, in South Greeley, sunrise is at 6:55 am and sunset at 6:42 pm MDT.
Sunshine
In September, the average sunshine is 10.7h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 4 during September translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Frequently asked questions
What is the average September temperature in South Greeley?
What is the average humidity in September in South Greeley?
How many days does it rain in September in South Greeley?
When it does not snow in South Greeley?
Does it snow in South Greeley in September?
How many hours of daylight does South Greeley have in September?
What time are sunrise and sunset in September in South Greeley?
How long on average sun shines in September in South Greeley?
How high is the UV index in September in South Greeley?
Average temperature in September
South Greeley, WY
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is December (34.7°F).
- Average low temperature in September: 52.3°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).
Average pressure in September
South Greeley, WY
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
South Greeley, WY
- Average wind speed in September: 9.6mph
The windiest month (with the highest average wind speed) is January (14.2mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in September
South Greeley, WY
- Average humidity in September: 44%
The month with the highest relative humidity is February (64%).
The month with the lowest relative humidity is August (43%).
Average rainfall in September
South Greeley, WY
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in September
South Greeley, WY
- Average rainfall days in September: 8.4 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (4.7 days).
Average snowfall in September
South Greeley, WY
- Average snowfall in September: 0"
The month with the highest snowfall is March (6.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
South Greeley, WY
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
South Greeley, WY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 10h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).
Average sunshine days in September
South Greeley, WY
- Average sunshine days in September: 19 days
The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is April (9.3 days).
Average UV index in September
South Greeley, WY
- Average UV index in September: 4
The months with the highest UV index are 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
South Greeley, WY
- Average cloud cover in September: 18
The months with the most cloud cover are April and May (Cloud cover 32).
The month with the least cloud cover is September (Cloud cover 18).
Average visibility in September
South Greeley, WY
- 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).
South Greeley, Wyoming, USA
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