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
Start of September brings a shift in the average high-temperature, falling from August's moderately hot 80.2°F (26.8°C) to an agreeable 69.3°F (20.7°C). In the month of September, the temperature generally rests at an average low of 50.4°F (10.2°C).Humidity
The average relative humidity in September is 47%.Rainfall
In Ledger, during September, the rain falls for 8.5 days and regularly aggregates up to 0.98" (25mm) of precipitation. Throughout the year, in Ledger, there are 104.3 rainfall days, and 11.93" (303mm) of precipitation is accumulated.Snowfall
Months with snowfall in Ledger are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.9 snowfall days, it receives 0.67" (17mm) of snow. Throughout the year, in Ledger, there are 68.2 snowfall days, and 25.63" (651mm) of snow is accumulated.Daylight
The average length of the day in September is 12h and 34min.On the first day of the month, sunrise is at 6:46 am and sunset at 8:07 pm. On the last day of September, in Ledger, Montana, sunrise is at 7:26 am and sunset at 7:07 pm MDT.
Sunshine
In Ledger, the average sunshine in September is 9.7h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 4 in September suggests the following recommendations:
Take precautions - Protection against sunburn is recommended. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
What are September temperatures in Ledger?
What is the average humidity in September in Ledger?
How much does it rain in Ledger in September?
When does it start snowing in Ledger?
What is the average length of the day in September in Ledger?
When is the sunrise / sunset in September in Ledger?
How long on average sun shines in September in Ledger?
How high is the UV index in September in Ledger?
Average temperature in September
Ledger, MT
- Average high temperature in September: 69.3°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is December (28.6°F).
- Average low temperature in September: 50.4°F
The month with the highest average low temperature is August (57.7°F).
The coldest month (with the lowest average low temperature) is December (16°F).
Average pressure in September
Ledger, MT
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Ledger, MT
- Average wind speed in September: 9mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity in September
Ledger, MT
- Average humidity in September: 47%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (40%).
Average rainfall in September
Ledger, MT
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is June (2.36").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in September
Ledger, MT
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (4.2 days).
Average snowfall in September
Ledger, MT
- Average snowfall in September: 0.67"
The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Ledger, MT
- Average snowfall days in September: 0.9 days
The month with the highest number of snowfall days is December (12.6 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Ledger, MT
- Average daylight in September: 12h and 4min
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 4min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Ledger, MT
- Average sunshine days in September: 19.5 days
The month with the most sunshine days is September (19.5 days).
The month with the least sunshine days is April (12.2 days).
Average UV index in September
Ledger, 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, October, November and December (UV index 2).
Average cloud cover in September
Ledger, MT
- Average cloud cover in September: 23
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility in September
Ledger, 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).
Ledger, Montana, USA
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