September weather forecastContent, MT
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Content, Montana, with an average temperature varying between 70.9°F (21.6°C) and 53.4°F (11.9°C).Temperature
Content in September experiences a subtle temperature decline, with average high-temperatures reducing from a moderately hot 82.2°F (27.9°C) in August to an agreeable 70.9°F (21.6°C). In Content, an average nighttime temperature of 53.4°F (11.9°C) is expected during September.Humidity
In September, the average relative humidity is 46%.Rainfall
In Content, Montana, during September, the rain falls for 8.7 days and regularly aggregates up to 1.1" (28mm) of precipitation. Throughout the year, in Content, there are 103.3 rainfall days, and 11.81" (300mm) of precipitation is accumulated.Snowfall
Months with snowfall in Content are January through May, September through December. September is the first month it typically snows in Content. Throughout September, in the average 0.2 snowfall days, it receives 0.2" (5mm) of snow. In Content, during the entire year, snow falls for 59.6 days and aggregates up to 20.28" (515mm) of snow.Daylight
In Content, the average length of the day in September is 12h and 34min.On the first day of September in Content, sunrise is at 6:29 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:50 pm MDT.
Sunshine
In Content, Montana, the average sunshine in September is 9.9h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 4 in September leads to these guidelines:
Ensure safety - Sun damage prevention is strongly urged. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Content, MT
- Average high temperature in September: 70.9°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The months with the lowest average high temperature are January and February (25.7°F).
- Average low temperature in September: 53.4°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (11.8°F).
Average pressure in September
Content, MT
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
Content, MT
- Average wind speed in September: 9.9mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is February (8.8mph).
Average humidity in September
Content, MT
- Average humidity in September: 46%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (41%).
Average rainfall in September
Content, MT
- Average rainfall in September: 1.1"
The wettest months (with the highest rainfall) are May and June (1.89").
The driest months (with the least rainfall) are February and December (0.55").
Average rainfall days in September
Content, MT
- Average rainfall days in September: 8.7 days
The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is December (4 days).
Average snowfall in September
Content, MT
- Average snowfall in September: 0.2"
The month with the highest snowfall is December (3.9").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Content, MT
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (12.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Content, MT
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 9h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Content, MT
- Average sunshine days in September: 19.6 days
The month with the most sunshine days is September (19.6 days).
The month with the least sunshine days is April (13.4 days).
Average UV index in September
Content, MT
- Average UV index in September: 4
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Content, MT
- Average cloud cover in September: 24
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility in September
Content, MT
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
