September weather forecastPavillion, WY
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Pavillion, Wyoming, with temperature in the range of an average high of 73.4°F (23°C) and an average low of 50.9°F (10.5°C).Temperature
The onset of September comes with a shift in the average high-temperature, falling from a warm 82.6°F (28.1°C) in August to a still moderately hot 73.4°F (23°C). A striking difference from the daytime highs is registered during September nights, with an average temperature of 50.9°F (10.5°C).Humidity
In September, the average relative humidity in Pavillion is 38%.Rainfall
In Pavillion, Wyoming, in September, it is raining for 5.6 days, with typically 0.31" (8mm) of accumulated precipitation. Throughout the year, there are 60.8 rainfall days, and 4.33" (110mm) of precipitation is accumulated.Snowfall
In Pavillion, snow does not fall in June through September.Daylight
In Pavillion, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:11 am and sunset at 6:57 pm MDT.
Sunshine
The average sunshine in September is 10.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Adopt protective measures - It is advised to guard against sun damage. 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
Pavillion, WY
- Average high temperature in September: 73.4°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (29.8°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is December (14°F).
Average pressure in September
Pavillion, WY
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Pavillion, WY
- Average wind speed in September: 6.2mph
The windiest months (with the highest average wind speed) are April and June (7.1mph).
The calmest month (with the lowest average wind speed) is January (5.3mph).
Average humidity in September
Pavillion, WY
- Average humidity in September: 38%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (33%).
Average rainfall in September
Pavillion, WY
- Average rainfall in September: 0.31"
The wettest month (with the highest rainfall) is May (0.94").
The driest months (with the least rainfall) are January and December (0.16").
Average rainfall days in September
Pavillion, WY
- Average rainfall days in September: 5.6 days
The month with the highest number of rainy days is May (8.7 days).
The month with the least rainy days is November (2.2 days).
Average snowfall in September
Pavillion, WY
- Average snowfall in September: 0"
The month with the highest snowfall is April (3.31").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Pavillion, WY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Pavillion, WY
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 10h and 54min
The months with the most sunshine are June and July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).
Average sunshine days in September
Pavillion, WY
- Average sunshine days in September: 20.9 days
The month with the most sunshine days is January (25.6 days).
The month with the least sunshine days is April (18.4 days).
Average UV index in September
Pavillion, WY
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 2).
Average cloud cover in September
Pavillion, WY
- Average cloud cover in September: 13
The months with the most cloud cover are February and April (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in September
Pavillion, 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).
