September weather forecastSurrey, ND
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Surrey, North Dakota, with an average temperature fluctuating between 50.9°F (10.5°C) and 70.2°F (21.2°C).Temperature
In Surrey, entering September brings a temperature decrement, reducing from August's moderately hot 80.8°F (27.1°C) to a pleasant 70.2°F (21.2°C). In the month of September, the temperature generally rests at an average low of 50.9°F (10.5°C).Humidity
In Surrey, the average relative humidity in September is 56%.Rainfall
In Surrey, during September, the rain falls for 8.6 days and regularly aggregates up to 1.81" (46mm) of precipitation. Throughout the year, there are 89.5 rainfall days, and 13.94" (354mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Surrey, North Dakota, the average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 7:03 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 7:24 pm CDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In Surrey, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 4 during September leads to these instructions:
Adopt protective measures - It is advised to guard against sun damage. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Surrey, ND
- Average high temperature in September: 70.2°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 (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 (4.5°F).
Average pressure in September
Surrey, 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
Surrey, ND
- Average wind speed in September: 9.8mph
The windiest month (with the highest average wind speed) is October (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (8.6mph).
Average humidity in September
Surrey, 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
Surrey, ND
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is June (2.52").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days in September
Surrey, ND
- Average rainfall days in September: 8.6 days
The month with the highest number of rainy days is June (14 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in September
Surrey, ND
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.95").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Surrey, ND
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Surrey, 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 36min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).
Average sunshine days in September
Surrey, ND
- Average sunshine days in September: 19.6 days
The month with the most sunshine days is October (21 days).
The month with the least sunshine days is June (13.6 days).
Average UV index in September
Surrey, ND
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Surrey, 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
Surrey, 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).





