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 start of September signals a decrease in the average high-temperature, transitioning from a warm 80.2°F (26.8°C) in August to an agreeable 69.6°F (20.9°C). Against the backdrop of high daytime temperatures, an average low-temperature of 45.5°F (7.5°C) is noted during September nights.Humidity
The average relative humidity in September is 50%.Rainfall
In Wolf Creek, during September, the rain falls for 7.1 days and regularly aggregates up to 0.91" (23mm) of precipitation. Throughout the year, there are 98.1 rainfall days, and 10.91" (277mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.7 snowfall days, it receives 2.68" (68mm) of snow. Throughout the year, there are 59.6 snowfall days, and 31.89" (810mm) of snow is accumulated.Daylight
The average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 6:48 am and sunset at 8:07 pm. On the last day of September, sunrise is at 7:26 am and sunset at 7:09 pm MDT.
Sunshine
In Wolf Creek, the average sunshine in September is 9.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 4 during September translates into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
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 many days does it rain in September?
When does it start to snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Wolf Creek have in September?
How high is the UV index in September in Wolf Creek?
Average temperature in September
Wolf Creek, MT
- Average high temperature in September: 69.6°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is December (28.4°F).
- Average low temperature in September: 45.5°F
The month with the highest average low temperature is August (52°F).
The coldest month (with the lowest average low temperature) is December (14.7°F).
Average pressure in September
Wolf Creek, MT
- Average pressure in September: 29.97"Hg
The months with the highest atmospheric pressure are January and December (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Wolf Creek, MT
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is November (8.9mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in September
Wolf Creek, MT
- Average humidity in September: 50%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are July and August (45%).
Average rainfall in September
Wolf Creek, MT
- Average rainfall in September: 0.91"
The wettest month (with the highest rainfall) is June (2.17").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in September
Wolf Creek, MT
- Average rainfall days in September: 7.1 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is December (3.9 days).
Average snowfall in September
Wolf Creek, MT
- Average snowfall in September: 2.68"
The month with the highest snowfall is April (5.12").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Wolf Creek, MT
- Average snowfall days in September: 0.7 days
The month with the highest number of snowfall days is February (11.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Wolf Creek, MT
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in September
Wolf Creek, MT
- Average sunshine days in September: 20.2 days
The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is April (12.4 days).
Average UV index in September
Wolf Creek, MT
- 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
Wolf Creek, MT
- Average cloud cover in September: 22
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in September
Wolf Creek, MT
- 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).
Wolf Creek, Montana, USA
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