September weather forecastAldridge, MT
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Aldridge, Montana, with an average temperature fluctuating between 39.6°F (4.2°C) and 63.5°F (17.5°C).Temperature
Aldridge's progression into September involves a drop in the average high-temperature, receding from a pleasant 72.7°F (22.6°C) in August to an enjoyable 63.5°F (17.5°C). Aldridge's nighttime average of 39.6°F (4.2°C) during September reflects a substantial decrease from the daytime temperature.Humidity
In September, the average relative humidity is 57%.Rainfall
In Aldridge, in September, during 11.1 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. In Aldridge, during the entire year, the rain falls for 116.1 days and collects up to 23.5" (597mm) of precipitation.Snowfall
Months with snowfall in Aldridge are January through December. In Aldridge, in September, snow falls for 3.6 days, with typically accumulated 5.04" (128mm) of snow. Throughout the year, there are 151.6 snowfall days, and 124.06" (3151mm) of snow is accumulated.Daylight
In Aldridge, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:46 am and sunset at 7:59 pm. On the last day of September, sunrise is at 7:21 am and sunset at 7:04 pm MDT.
Sunshine
In September, the average sunshine is 9.8h.UV index
In Aldridge, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 3 in September translates into the following instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. 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
Average temperature in September
Aldridge, MT
- Average high temperature in September: 63.5°F
The warmest month (with the highest average high temperature) is July (74.8°F).
The month with the lowest average high temperature is December (22.5°F).
- Average low temperature in September: 39.6°F
The month with the highest average low temperature is August (45.1°F).
The coldest month (with the lowest average low temperature) is December (7.9°F).
Average pressure in September
Aldridge, MT
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Aldridge, MT
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is January (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Aldridge, MT
- Average humidity in September: 57%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is August (51%).
Average rainfall in September
Aldridge, MT
- Average rainfall in September: 1.81"
The wettest months (with the highest rainfall) are April and May (2.91").
The driest month (with the least rainfall) is July (1.18").
Average rainfall days in September
Aldridge, MT
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is June (16.6 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Aldridge, MT
- Average snowfall in September: 5.04"
The month with the highest snowfall is April (19.88").
The month with the least snowfall is August (0.08").
Average snowfall days in September
Aldridge, MT
- Average snowfall days in September: 3.6 days
The month with the highest number of snowfall days is March (21 days).
The month with the least snowfall days is August (0.3 days).
Average daylight in September /
Average sunshine in September
Aldridge, MT
- Average daylight in September: 12h and 30min
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: 9h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in September
Aldridge, MT
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is May (5.7 days).
Average UV index in September
Aldridge, MT
- 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 and February (UV index 1).
Average cloud cover in September
Aldridge, MT
- Average cloud cover in September: 23
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 17).
Average visibility in September
Aldridge, MT
- Average visibility in September: 6mi
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).





