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
As August shifts into September, a slight alteration in temperatures is observed, with average highs reducing from a warm 83.1°F (28.4°C) to a still moderately hot 73.4°F (23°C). An average minimum temperature of 52°F (11.1°C) is recorded during the month of September.Humidity
In September, the average relative humidity is 44%.Rainfall
In Molt, in September, it is raining for 7.1 days, with typically 0.55" (14mm) of accumulated precipitation. Throughout the year, in Molt, there are 95.8 rainfall days, and 8.74" (222mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow. In Molt, during the entire year, snow falls for 44.1 days and aggregates up to 15.75" (400mm) of snow.Daylight
In Molt, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:13 am and sunset at 6:57 pm MDT.
Sunshine
In September, the average sunshine is 10.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. 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 is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When does it start snowing?
How many hours of daylight does Molt have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Molt, MT
- Average high temperature in September: 73.4°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is December (31.3°F).
- Average low temperature in September: 52°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is February (18.3°F).
Average pressure in September
Molt, MT
- Average pressure in September: 29.95"Hg
The months with the highest atmospheric pressure are January and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Molt, MT
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in September
Molt, MT
- Average humidity in September: 44%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (40%).
Average rainfall in September
Molt, MT
- Average rainfall in September: 0.55"
The wettest month (with the highest rainfall) is May (1.54").
The driest month (with the least rainfall) is January (0.28").
Average rainfall days in September
Molt, MT
- Average rainfall days in September: 7.1 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in September
Molt, MT
- Average snowfall in September: 0.08"
The month with the highest snowfall is February (2.68").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Molt, MT
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Molt, MT
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 10h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).
Average sunshine days in September
Molt, MT
- Average sunshine days in September: 20.5 days
The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is May (13.1 days).
Average UV index in September
Molt, 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 January, February, March, November and December (UV index 2).
Average cloud cover in September
Molt, MT
- Average cloud cover in September: 20
The month with the most cloud cover is February (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in September
Molt, 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).
Molt, Montana, USA
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