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's arrival in Big Timber correlates with a reduction in the average high-temperature, down from a moderately hot 76.6°F (24.8°C) in August to an enjoyable 66.7°F (19.3°C). During the month of September, the nighttime temperature in Big Timber falls to an average of 45.3°F (7.4°C).Humidity
In Big Timber, the average relative humidity in September is 51%.Rainfall
In September, in Big Timber, the rain falls for 9.8 days. Throughout September, 1.1" (28mm) of precipitation is accumulated. In Big Timber, during the entire year, the rain falls for 129.6 days and collects up to 15.83" (402mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 1 snowfall days, it receives 0.51" (13mm) of snow. Throughout the year, there are 67.6 snowfall days, and 38.19" (970mm) of snow is accumulated.Daylight
The average length of the day in September in Big Timber, Montana, is 12h and 31min.On the first day of September in Big Timber, sunrise is at 6:41 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:01 pm MDT.
Sunshine
In September, the average sunshine in Big Timber is 10.2h.UV index
In Big Timber, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, an average UV index of 3 transforms into the following instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the average September temperature in Big Timber?
What is the average humidity in September in Big Timber?
How many days does it rain in September in Big Timber?
When does it start to snow in Big Timber?
How many hours of daylight does Big Timber have in September?
When are sunrise and sunset in September in Big Timber?
How many hours of sunshine does Big Timber have in September?
What is the UV index reading in September in Big Timber?
Average temperature in September
Big Timber, MT
- Average high temperature in September: 66.7°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is December (28.4°F).
- Average low temperature in September: 45.3°F
The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is February (15.3°F).
Average pressure in September
Big Timber, MT
- Average pressure in September: 29.96"Hg
The months with the highest atmospheric pressure are January and December (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Big Timber, MT
- Average wind speed in September: 6.9mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in September
Big Timber, MT
- Average humidity in September: 51%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (47%).
Average rainfall in September
Big Timber, MT
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in September
Big Timber, MT
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is May (19.8 days).
The months with the least rainy days are January and December (5.3 days).
Average snowfall in September
Big Timber, MT
- Average snowfall in September: 0.51"
The month with the highest snowfall is March (7.09").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Big Timber, MT
- Average snowfall days in September: 1 days
The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Big Timber, MT
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 12min).
Average sunshine days in September
Big Timber, MT
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is May (7.7 days).
Average UV index in September
Big Timber, MT
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in September
Big Timber, MT
- Average cloud cover in September: 21
The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility in September
Big Timber, 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).
Big Timber, Montana, USA
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