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
Arrival of September comes with a reduction in the average high-temperature, falling from a warm 82.9°F (28.3°C) in August to a pleasant 73.2°F (22.9°C). An average low-temperature of 54.5°F (12.5°C) is recorded in the month of September in Belltower, Montana.Humidity
In September, the average relative humidity in Belltower, Montana, is 48%.Rainfall
In Belltower, in September, it is raining for 9 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, in Belltower, there are 103.8 rainfall days, and 14.88" (378mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Belltower.Daylight
The average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:19 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:38 pm MDT.
Sunshine
In Belltower, the average sunshine in September is 10h.UV index
In September, the average daily maximum UV index in Belltower, Montana, is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Belltower?
What is the average humidity in September in Belltower?
How many days does it rain in September in Belltower?
When it does not snow in Belltower?
Does it snow in Belltower in September?
What is the average length of the day in September in Belltower?
When are sunrise and sunset in September in Belltower?
How long on average sun shines in September in Belltower?
What is the UV index intensity in September in Belltower?
Average temperature in September
Belltower, MT
- Average high temperature in September: 73.2°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in September
Belltower, MT
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Belltower, MT
- Average wind speed in September: 10.6mph
The windiest months (with the highest average wind speed) are January and October (11.9mph).
The calmest month (with the lowest average wind speed) is July (9.8mph).
Average humidity in September
Belltower, MT
- Average humidity in September: 48%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (47%).
Average rainfall in September
Belltower, MT
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is May (2.68").
The driest months (with the least rainfall) are January and November (0.51").
Average rainfall days in September
Belltower, MT
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (3.3 days).
Average snowfall in September
Belltower, MT
- Average snowfall in September: 0"
The month with the highest snowfall is March (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Belltower, MT
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Belltower, MT
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 30min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).
Average sunshine days in September
Belltower, MT
- Average sunshine days in September: 18.8 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is April (11.6 days).
Average UV index in September
Belltower, MT
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in September
Belltower, MT
- Average cloud cover in September: 22
The months with the most cloud cover are January and February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Belltower, 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).
Belltower, Montana, USA
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