September weather forecastRozet, WY
September
Weather in September
September, the first month of the autumn in Rozet, is still a warm month, with an average temperature fluctuating between 73.6°F (23.1°C) and 54.3°F (12.4°C).Temperature
Rozet's progression into September involves a minor drop in the average high-temperature, slightly receding from 82.4°F (28°C) in August to a still warm 73.6°F (23.1°C). An average nighttime temperature of 54.3°F (12.4°C) is recorded during September.Humidity
In September, the average relative humidity is 44%.Rainfall
In Rozet, in September, during 10.2 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Rozet, Wyoming, during the entire year, the rain falls for 108.9 days and collects up to 15.59" (396mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.4 snowfall days, it receives 0.31" (8mm) of snow. In Rozet, during the entire year, snow falls for 50.5 days and aggregates up to 19.53" (496mm) of snow.Daylight
In Rozet, the average length of the day in September is 12h and 30min.On the first day of September, sunrise is at 6:24 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:42 pm MDT.
Sunshine
The average sunshine in September is 10.8h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 4 during September translates into the following guidance:
Take necessary precautions - Defending against sun damage is advocated. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rozet, WY
- Average high temperature in September: 73.6°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 (29.7°F).
- Average low temperature in September: 54.3°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is February (16.7°F).
Average pressure in September
Rozet, WY
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Rozet, WY
- Average wind speed in September: 10.1mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (9.1mph).
Average humidity in September
Rozet, WY
- Average humidity in September: 44%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (41%).
Average rainfall in September
Rozet, WY
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in September
Rozet, WY
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (1.5 days).
Average snowfall in September
Rozet, WY
- Average snowfall in September: 0.31"
The month with the highest snowfall is April (3.82").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Rozet, WY
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is February (9.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Rozet, WY
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 10h and 48min
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: 5h and 36min).
Average sunshine days in September
Rozet, WY
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in September
Rozet, 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, April, November and December (UV index 2).
Average cloud cover in September
Rozet, WY
- Average cloud cover in September: 18
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Rozet, 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).





