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 brings a drop in Sula's average high-temperature, falling from a warm 75.9°F (24.4°C) in August to a refreshing 66.2°F (19°C). Sula reports a considerable drop from daytime temperatures in September, recording an average nighttime figure of 39.4°F (4.1°C).Humidity
The average relative humidity in September in Sula is 55%.Rainfall
In Sula, Montana, in September, during 7.4 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. Throughout the year, there are 93.6 rainfall days, and 15.43" (392mm) of precipitation is accumulated.Snowfall
January through December are months with snowfall in Sula. In Sula, in September, during 2.2 snowfall days, 1.42" (36mm) of snow is typically accumulated. Throughout the year, there are 129.3 snowfall days, and 94.92" (2411mm) of snow is accumulated.Daylight
In Sula, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:57 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:17 pm MDT.
Sunshine
In Sula, the average sunshine in September is 9.6h.UV index
In Sula, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: A daily high UV index of 3 in September leads to these guidelines:
Take precautions - Protection against sun damage is advised. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Sula in September?
What is the average humidity in September in Sula?
How much does it rain in Sula in September?
How much does it snow in Sula in September?
What is the average length of the day in September in Sula?
When is the sunrise / sunset in September in Sula?
How long on average sun shines in September in Sula?
What is the UV index reading in September in Sula?
Average temperature in September
Sula, MT
- Average high temperature in September: 66.2°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is December (24.1°F).
- Average low temperature in September: 39.4°F
The month with the highest average low temperature is August (45.3°F).
The coldest month (with the lowest average low temperature) is December (9.5°F).
Average pressure in September
Sula, MT
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Sula, MT
- Average wind speed in September: 4.3mph
The windiest month (with the highest average wind speed) is November (5.2mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Sula, MT
- Average humidity in September: 55%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is August (48%).
Average rainfall in September
Sula, MT
- Average rainfall in September: 0.71"
The wettest month (with the highest rainfall) is April (1.81").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days in September
Sula, MT
- Average rainfall days in September: 7.4 days
The month with the highest number of rainy days is June (11.7 days).
The months with the least rainy days are January, August and December (5.2 days).
Average snowfall in September
Sula, MT
- Average snowfall in September: 1.42"
The month with the highest snowfall is February (14.8").
The month with the least snowfall is July (0.12").
Average snowfall days in September
Sula, MT
- Average snowfall days in September: 2.2 days
The month with the highest number of snowfall days is March (20.3 days).
The month with the least snowfall days is July (0.2 days).
Average daylight in September /
Average sunshine in September
Sula, 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: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).
Average sunshine days in September
Sula, MT
- Average sunshine days in September: 19.5 days
The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is March (8.8 days).
Average UV index in September
Sula, 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, February and December (UV index 1).
Average cloud cover in September
Sula, MT
- Average cloud cover in September: 19
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in September
Sula, MT
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Sula, Montana, USA
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