September weather forecastTorrington, WY
September
Weather in September
September welcomes fall in Torrington with open arms, as temperatures start to fall and the amount of daylight begins to decrease. Although weather conditions remain dry with 0.67" (17mm) of rainfall, slight snowfall resurfaces with 0.08" (2mm) reported. As hints of snow return, temperatures drop, and windy conditions persist, the summer season bids farewell. The arrival of fall is prominently marked by cooler temperatures and shorter days.Temperature
September's arrival signals a moderate reduction in the average high-temperature, easing from a tropical 86.5°F (30.3°C) in August to a warm 78.6°F (25.9°C). Torrington, amidst the high September temperatures, experiences a substantial shift to an average nighttime low of 54.5°F (12.5°C).Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 44%.Rainfall
In September, the rain falls for 8.3 days. Throughout September, 0.67" (17mm) of precipitation is accumulated. Throughout the year, there are 110.8 rainfall days, and 12.87" (327mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow. In Torrington, during the entire year, snow falls for 42.1 days and aggregates up to 20.75" (527mm) of snow.Daylight
In Torrington, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:23 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:53 am and sunset at 6:39 pm MDT.
Sunshine
The average sunshine in September is 10.7h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the UV index of 4 transforms into the following advice:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Torrington, WY
- Average high temperature in September: 78.6°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is December (36°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is December (20.8°F).
Average pressure in September
Torrington, WY
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Torrington, WY
- Average wind speed in September: 9.4mph
The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in September
Torrington, WY
- Average humidity in September: 44%
The months with the highest relative humidity are January and December (67%).
The months with the lowest relative humidity are August and September (44%).
Average rainfall in September
Torrington, WY
- Average rainfall in September: 0.67"
The wettest month (with the highest rainfall) is May (2.32").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in September
Torrington, WY
- Average rainfall days in September: 8.3 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is December (4.1 days).
Average snowfall in September
Torrington, WY
- Average snowfall in September: 0.08"
The month with the highest snowfall is May (3.11").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Torrington, WY
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (8.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Torrington, WY
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 10h and 42min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).
Average sunshine days in September
Torrington, WY
- Average sunshine days in September: 18.9 days
The month with the most sunshine days is December (20.8 days).
The month with the least sunshine days is May (12.2 days).
Average UV index in September
Torrington, WY
- Average UV index in September: 4
The months with the highest UV index are 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
Torrington, WY
- Average cloud cover in September: 16
The month with the most cloud cover is February (Cloud cover 33).
The months with the least cloud cover are August and September (Cloud cover 16).
Average visibility in September
Torrington, 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).
