September weather forecastBerthold, ND
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Berthold, North Dakota, with an average temperature varying between 50.9°F (10.5°C) and 70.3°F (21.3°C).Temperature
Berthold in September demonstrates a small temperature transition, adjusting from an average high of a moderately hot 81.5°F (27.5°C) in August to an agreeable 70.3°F (21.3°C). September is noted for a mean low-temperature of 50.9°F (10.5°C).Humidity
In September, the average relative humidity is 56%.Rainfall
In September, in Berthold, the rain falls for 10.3 days. Throughout September, 1.89" (48mm) of precipitation is accumulated. Throughout the year, in Berthold, there are 104.5 rainfall days, and 16.1" (409mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Berthold.Daylight
In Berthold, the average length of the day in September is 12h and 34min.On the first day of September in Berthold, sunrise is at 7:05 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 7:27 pm CDT.
Sunshine
In Berthold, North Dakota, the average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 4 translates into these guidelines:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Berthold, ND
- Average high temperature in September: 70.3°F
The warmest month (with the highest average high temperature) is August (81.5°F).
The month with the lowest average high temperature is January (18.1°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (4.3°F).
Average pressure in September
Berthold, ND
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is February (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Berthold, ND
- Average wind speed in September: 9.6mph
The windiest month (with the highest average wind speed) is October (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in September
Berthold, ND
- Average humidity in September: 56%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (54%).
Average rainfall in September
Berthold, ND
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is June (2.83").
The driest months (with the least rainfall) are January and February (0.51").
Average rainfall days in September
Berthold, ND
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is February (2 days).
Average snowfall in September
Berthold, ND
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Berthold, ND
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Berthold, ND
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).
Average sunshine days in September
Berthold, ND
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in September
Berthold, ND
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in September
Berthold, ND
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Berthold, ND
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
