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
Setting in of September comes with a decrease in the average high-temperature, moving from a moderately hot 74.8°F (23.8°C) in August to a refreshing 65.7°F (18.7°C). September, marked by an average low-temperature of 39.7°F (4.3°C), indicates a large temperature drop from the daytime peak.Humidity
In Freedom, the average relative humidity in September is 52%.Rainfall
In Freedom, during September, the rain falls for 9.4 days and regularly aggregates up to 1.3" (33mm) of precipitation. In Freedom, during the entire year, the rain falls for 109.5 days and collects up to 21.61" (549mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 1 snowfall days, it receives 1.3" (33mm) of snow. In Freedom, during the entire year, snow falls for 126.9 days and aggregates up to 106.65" (2709mm) of snow.Daylight
In September, the average length of the day is 12h and 29min.On the first day of September, sunrise is at 6:49 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:06 pm MDT.
Sunshine
The average sunshine in September in Freedom is 10.1h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 3 during September morphs into the following directions:
Undertake precautions - Guarding against sun damage is counselled. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September?
When does it start to snow?
How many hours of daylight does Freedom have in September?
What time 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
Freedom, WY
- Average high temperature in September: 65.7°F
The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is December (24.1°F).
- Average low temperature in September: 39.7°F
The month with the highest average low temperature is July (45.7°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in September
Freedom, WY
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Freedom, WY
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is June (5.7mph).
The calmest months (with the lowest average wind speed) are January and December (4.2mph).
Average humidity in September
Freedom, WY
- Average humidity in September: 52%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is August (45%).
Average rainfall in September
Freedom, WY
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is February (2.72").
The driest months (with the least rainfall) are July and August (0.63").
Average rainfall days in September
Freedom, WY
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.7 days).
Average snowfall in September
Freedom, WY
- Average snowfall in September: 1.3"
The month with the highest snowfall is February (19.96").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Freedom, WY
- Average snowfall days in September: 1 days
The month with the highest number of snowfall days is December (21.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Freedom, WY
- Average daylight in September: 12h and 3min
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 6min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in September
Freedom, WY
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is July (18.8 days).
The month with the least sunshine days is April (7 days).
Average UV index in September
Freedom, WY
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Freedom, WY
- Average cloud cover in September: 16
The month with the most cloud cover is February (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in September
Freedom, WY
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).
Freedom, Wyoming, USA
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