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 gentle decline in Colfax's average high-temperature, easing from a moderately hot 80.6°F (27°C) in August to an agreeable 72°F (22.2°C). In Colfax, an average temperature of 52.5°F (11.4°C) is noted during September nights.Humidity
The least humid month is September, with an average relative humidity of 64%.Rainfall
In Colfax, in September, during 9.4 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. Throughout the year, there are 105.1 rainfall days, and 18.23" (463mm) of precipitation is accumulated.Snowfall
In Colfax, North Dakota, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 32min.On the first day of the month, sunrise is at 6:48 am and sunset at 8:05 pm. On the last day of September, sunrise is at 7:25 am and sunset at 7:08 pm CDT.
Sunshine
In Colfax, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Colfax in September?
What is the least humid month?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Colfax, ND
- Average high temperature in September: 72°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (17.4°F).
- Average low temperature in September: 52.5°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (3.7°F).
Average pressure in September
Colfax, ND
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Colfax, ND
- Average wind speed in September: 9.5mph
The windiest months (with the highest average wind speed) are April and October (10.6mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).
Average humidity in September
Colfax, ND
- Average humidity in September: 64%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is September (64%).
Average rainfall in September
Colfax, ND
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is June (3.15").
The driest months (with the least rainfall) are January and February (0.59").
Average rainfall days in September
Colfax, ND
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is June (15.3 days).
The month with the least rainy days is February (2 days).
Average snowfall in September
Colfax, ND
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Colfax, ND
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Colfax, ND
- 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: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Colfax, ND
- Average sunshine days in September: 19.3 days
The month with the most sunshine days is September (19.3 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in September
Colfax, ND
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Colfax, ND
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Colfax, ND
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).
Colfax, North Dakota, USA
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