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
In the transition to September, Forest River observes a drop in the average high-temperature, moving from a warm 80.4°F (26.9°C) in August to an agreeable 70.5°F (21.4°C). During September, the nighttime temperature averages to a cool 51.6°F (10.9°C).Humidity
In Forest River, the average relative humidity in September is 61%.Rainfall
In September, in Forest River, the rain falls for 8.7 days. Throughout September, 1.81" (46mm) of precipitation is accumulated. In Forest River, during the entire year, the rain falls for 97.8 days and collects up to 15.83" (402mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Forest River is 12h and 34min.On the first day of the month, sunrise is at 6:48 am and sunset at 8:10 pm. On the last day of September, sunrise is at 7:28 am and sunset at 7:10 pm CDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
The average daily maximum UV index in September in Forest River, North Dakota, is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 4 during September translates into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Frequently asked questions
What is the temperature in September in Forest River?
What is the average humidity in September in Forest River?
How many days does it rain in September in Forest River?
When it does not snow in Forest River?
Does it snow in Forest River in September?
How many hours of daylight does Forest River have in September?
What time are sunrise and sunset in September in Forest River?
How many hours of sunshine does Forest River have in September?
How high is the UV index in September in Forest River?
Average temperature in September
Forest River, ND
- Average high temperature in September: 70.5°F
The warmest month (with the highest average high temperature) is August (80.4°F).
The month with the lowest average high temperature is January (14.7°F).
- Average low temperature in September: 51.6°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (0.9°F).
Average pressure in September
Forest River, ND
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Forest River, ND
- Average wind speed in September: 9.8mph
The windiest month (with the highest average wind speed) is October (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).
Average humidity in September
Forest River, ND
- Average humidity in September: 61%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (59%).
Average rainfall in September
Forest River, ND
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is June (2.8").
The driest months (with the least rainfall) are January and February (0.55").
Average rainfall days in September
Forest River, ND
- Average rainfall days in September: 8.7 days
The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is February (1.6 days).
Average snowfall in September
Forest River, ND
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Forest River, 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
Forest River, ND
- Average daylight in September: 12h and 4min
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 4min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Forest River, ND
- Average sunshine days in September: 19.5 days
The month with the most sunshine days is August (19.8 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in September
Forest River, 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, February and November (UV index 1).
Average cloud cover in September
Forest River, ND
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Forest River, 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).
Forest River, North Dakota, USA
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