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
Clancy, Montana, in September experiences a subtle temperature decline, with average high-temperatures reducing from a warm 78.1°F (25.6°C) in August to a pleasant 68.2°F (20.1°C). Clancy encounters a substantial decline from its daily high to a low-temperature of 43.9°F (6.6°C) during September nights.Humidity
In September, the average relative humidity in Clancy is 51%.Rainfall
In Clancy, in September, it is raining for 8.1 days, with typically 0.94" (24mm) of accumulated precipitation. Throughout the year, there are 123.7 rainfall days, and 12.4" (315mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.7 snowfall days, it receives 1.77" (45mm) of snow. Throughout the year, in Clancy, there are 80.4 snowfall days, and 34.88" (886mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 32min.On the first day of September, sunrise is at 6:49 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:09 pm MDT.
Sunshine
The average sunshine in September in Clancy, Montana, is 9.7h.UV index
In Clancy, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 3 during September leads to these advisories:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
What is the temperature in September in Clancy?
What is the average humidity in September in Clancy?
How much does it rain in Clancy in September?
When does it start snowing in Clancy?
How many hours of daylight does Clancy have in September?
What time are sunrise and sunset in September in Clancy?
How many hours of sunshine does Clancy have in September?
How high is the UV index in September in Clancy?
Average temperature in September
Clancy, MT
- Average high temperature in September: 68.2°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is December (27.7°F).
- Average low temperature in September: 43.9°F
The month with the highest average low temperature is July (50.4°F).
The coldest month (with the lowest average low temperature) is December (14.2°F).
Average pressure in September
Clancy, MT
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Clancy, MT
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is November (7.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Clancy, MT
- Average humidity in September: 51%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are July and August (46%).
Average rainfall in September
Clancy, MT
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is June (2.01").
The driest months (with the least rainfall) are January and December (0.63").
Average rainfall days in September
Clancy, MT
- Average rainfall days in September: 8.1 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is November (7 days).
Average snowfall in September
Clancy, MT
- Average snowfall in September: 1.77"
The month with the highest snowfall is February (6.18").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Clancy, MT
- Average snowfall days in September: 0.7 days
The month with the highest number of snowfall days is February (16.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Clancy, MT
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in September
Clancy, MT
- Average sunshine days in September: 19.3 days
The month with the most sunshine days is July (20.5 days).
The month with the least sunshine days is April (9.8 days).
Average UV index in September
Clancy, MT
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
Clancy, MT
- Average cloud cover in September: 22
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in September
Clancy, MT
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Clancy, Montana, USA
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