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's arrival comes with a decrease in the average high-temperature, moving from a pleasant 72.1°F (22.3°C) in August to an enjoyable 62.8°F (17.1°C). Wilson anticipates a considerable cooling off from the daytime high to an average minimum temperature of 37.2°F (2.9°C) in September.Humidity
The average relative humidity in September in Wilson is 57%.Rainfall
In Wilson, in September, it is raining for 10.8 days, with typically 1.77" (45mm) of accumulated precipitation. Throughout the year, there are 103 rainfall days, and 29.84" (758mm) of precipitation is accumulated.Snowfall
January through December are months with snowfall in Wilson. In Wilson, during September, snow falls for 3.3 days and regularly aggregates up to 5.12" (130mm) of snow. Throughout the year, there are 173.6 snowfall days, and 181.26" (4604mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 29min.On the first day of September, sunrise is at 6:48 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:05 pm MDT.
Sunshine
In Wilson, Wyoming, the average sunshine in September is 10h.UV index
The average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 2 transforms into these recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Wilson?
What is the average humidity in September in Wilson?
How many days does it rain in September in Wilson?
How many days does it snow in September in Wilson?
What is the average length of the day in September in Wilson?
What time are sunrise and sunset in September in Wilson?
How long on average sun shines in September in Wilson?
How high is the UV index in September in Wilson?
Average temperature in September
Wilson, WY
- Average high temperature in September: 62.8°F
The warmest month (with the highest average high temperature) is July (73.4°F).
The month with the lowest average high temperature is December (21.9°F).
- Average low temperature in September: 37.2°F
The month with the highest average low temperature is July (43.5°F).
The coldest month (with the lowest average low temperature) is January (4.8°F).
Average pressure in September
Wilson, WY
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Wilson, WY
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is June (5.7mph).
The calmest month (with the lowest average wind speed) is December (4.3mph).
Average humidity in September
Wilson, WY
- Average humidity in September: 57%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (50%).
Average rainfall in September
Wilson, WY
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is February (3.54").
The driest month (with the least rainfall) is August (1.34").
Average rainfall days in September
Wilson, WY
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (2.9 days).
Average snowfall in September
Wilson, WY
- Average snowfall in September: 5.12"
The month with the highest snowfall is February (29.33").
The month with the least snowfall is August (0.12").
Average snowfall days in September
Wilson, WY
- Average snowfall days in September: 3.3 days
The month with the highest number of snowfall days is March (24.8 days).
The month with the least snowfall days is July (0.4 days).
Average daylight in September /
Average sunshine in September
Wilson, WY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in September
Wilson, WY
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is July (15.6 days).
The month with the least sunshine days is April (3.8 days).
Average UV index in September
Wilson, WY
- Average UV index in September: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).
Average cloud cover in September
Wilson, WY
- Average cloud cover in September: 21
The month with the most cloud cover is February (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility in September
Wilson, WY
- Average visibility in September: 6mi
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February, March and December (3mi).
Wilson, Wyoming, USA
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