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
September signifies a minor drop in average high-temperature, transitioning from a warm 82.4°F (28°C) in August to a still moderately hot 73.6°F (23.1°C). Biddle encounters a steady low-temperature average of 54.3°F (12.4°C) throughout the month of September.Humidity
In Biddle, the average relative humidity in September is 44%.Rainfall
In September, the rain falls for 10.2 days. Throughout September, 1.02" (26mm) of precipitation is accumulated. In Biddle, Montana, during the entire year, the rain falls for 108.9 days and collects up to 15.59" (396mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Biddle. September is the first month it typically snows in Biddle, Montana. Throughout September, in the average 0.4 snowfall days, it receives 0.31" (8mm) of snow. Throughout the year, in Biddle, there are 50.5 snowfall days, and 19.53" (496mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 31min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:37 pm. On the last day of September, sunrise is at 6:59 am and sunset at 6:42 pm MDT.
Sunshine
The average sunshine in September in Biddle is 10.8h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
What is the temperature in September in Biddle?
What is the average humidity in September in Biddle?
How much does it rain in Biddle in September?
When does it start to snow in Biddle?
How many hours of daylight does Biddle have in September?
When is the sunrise / sunset in September in Biddle?
How long on average sun shines in September in Biddle?
What is the UV index reading in September in Biddle?
Average temperature in September
Biddle, MT
- Average high temperature in September: 73.6°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (29.7°F).
- Average low temperature in September: 54.3°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is February (16.7°F).
Average pressure in September
Biddle, MT
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Biddle, MT
- Average wind speed in September: 10.1mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (9.1mph).
Average humidity in September
Biddle, MT
- Average humidity in September: 44%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (41%).
Average rainfall in September
Biddle, MT
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in September
Biddle, MT
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (1.5 days).
Average snowfall in September
Biddle, MT
- Average snowfall in September: 0.31"
The month with the highest snowfall is April (3.82").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Biddle, MT
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is February (9.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Biddle, MT
- Average daylight in September: 12h and 3min
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: 10h and 5min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).
Average sunshine days in September
Biddle, MT
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in September
Biddle, 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, April, November and December (UV index 2).
Average cloud cover in September
Biddle, MT
- Average cloud cover in September: 18
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Biddle, 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).
Biddle, Montana, USA
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