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
In September, the meteorological conditions change slightly, with the average high-temperature moving from an agreeable 71.8°F (22.1°C) in August to a comfortable 63.1°F (17.3°C). A striking departure from daytime highs to an average low-temperature of 41.4°F (5.2°C) is witnessed in Crowheart, Wyoming, during September.Humidity
The average relative humidity in September is 46%.Rainfall
In Crowheart, in September, during 7.5 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. Throughout the year, there are 118.1 rainfall days, and 9.06" (230mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall in Crowheart. September is the first month it typically snows in Crowheart. Throughout September, in the average 0.5 snowfall days, it receives 0.59" (15mm) of snow. Throughout the year, in Crowheart, Wyoming, there are 81 snowfall days, and 30.83" (783mm) of snow is accumulated.Daylight
In Crowheart, the average length of the day in September is 12h and 29min.On the first day of September in Crowheart, sunrise is at 6:41 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 6:59 pm MDT.
Sunshine
The average sunshine in September in Crowheart is 10.7h.UV index
The average daily maximum UV index in September in Crowheart is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The UV index of 3 during September leads to these advisories:
Undertake protective steps - Preventing sun damage is advised. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Crowheart in September?
What is the average humidity in September in Crowheart?
How many days does it rain in September in Crowheart?
When does it start to snow in Crowheart?
How many hours of daylight does Crowheart have in September?
When are sunrise and sunset in September in Crowheart?
How long on average sun shines in September in Crowheart?
What is the UV index intensity in September in Crowheart?
Average temperature in September
Crowheart, WY
- Average high temperature in September: 63.1°F
The warmest month (with the highest average high temperature) is July (73.8°F).
The month with the lowest average high temperature is December (24.4°F).
- Average low temperature in September: 41.4°F
The month with the highest average low temperature is July (47.7°F).
The coldest month (with the lowest average low temperature) is December (8.2°F).
Average pressure in September
Crowheart, WY
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Crowheart, WY
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in September
Crowheart, WY
- Average humidity in September: 46%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (41%).
Average rainfall in September
Crowheart, WY
- Average rainfall in September: 0.71"
The wettest month (with the highest rainfall) is May (1.46").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
Crowheart, WY
- Average rainfall days in September: 7.5 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is November (7 days).
Average snowfall in September
Crowheart, WY
- Average snowfall in September: 0.59"
The month with the highest snowfall is April (6.54").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Crowheart, WY
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is March (14.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Crowheart, 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 0min).
- Average sunshine in September: 10h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 48min).
Average sunshine days in September
Crowheart, WY
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is May (9 days).
Average UV index in September
Crowheart, 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, April, October, November and December (UV index 2).
Average cloud cover in September
Crowheart, WY
- Average cloud cover in September: 14
The months with the most cloud cover are February and April (Cloud cover 32).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Crowheart, 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).
Crowheart, Wyoming, USA
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