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
The shift from August to September involves a decrease in the average high-temperature, dropping from a warm 77.2°F (25.1°C) to a pleasant 68.2°F (20.1°C). The nighttime temperature dips to a chilly 49.1°F (9.5°C) on average during September.Humidity
The average relative humidity in September is 47%.Rainfall
In Mayoworth, during September, the rain falls for 11.8 days and regularly aggregates up to 1.34" (34mm) of precipitation. Throughout the year, there are 145.3 rainfall days, and 18.78" (477mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 0.94" (24mm) of snow. In Mayoworth, during the entire year, snow falls for 78 days and aggregates up to 39.13" (994mm) of snow.Daylight
In September, the average length of the day is 12h and 29min.On the first day of September in Mayoworth, sunrise is at 6:31 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:49 pm MDT.
Sunshine
In September, the average sunshine is 10.9h.UV index
In Mayoworth, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: A daily high UV index of 4 in September leads to these guidelines:
Prioritize safety - Recommendations to avert sunburn are shared. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When does it start to snow?
How many hours of daylight does Mayoworth have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Mayoworth, WY
- Average high temperature in September: 68.2°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is February (28.9°F).
- Average low temperature in September: 49.1°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is February (14°F).
Average pressure in September
Mayoworth, WY
- Average pressure in September: 29.93"Hg
The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Mayoworth, WY
- Average wind speed in September: 6.4mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in September
Mayoworth, WY
- Average humidity in September: 47%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (44%).
Average rainfall in September
Mayoworth, WY
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is December (0.47").
Average rainfall days in September
Mayoworth, WY
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is May (21.2 days).
The month with the least rainy days is December (5 days).
Average snowfall in September
Mayoworth, WY
- Average snowfall in September: 0.94"
The month with the highest snowfall is April (7.05").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Mayoworth, WY
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is February (13.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Mayoworth, 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 5min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).
Average sunshine days in September
Mayoworth, WY
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is December (19.4 days).
The month with the least sunshine days is May (5.5 days).
Average UV index in September
Mayoworth, WY
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in September
Mayoworth, WY
- Average cloud cover in September: 17
The month with the most cloud cover is April (Cloud cover 38).
The months with the least cloud cover are July and September (Cloud cover 17).
Average visibility in September
Mayoworth, 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).
Mayoworth, Wyoming, USA
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