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
With the beginning of September, the average high-temperature shows a decrease, transitioning from a warm 78.3°F (25.7°C) in August to a refreshing 67.8°F (19.9°C). Nighttime temperatures in September average to a chilly 49.6°F (9.8°C).Humidity
In Hampden, the average relative humidity in September is 62%.Rainfall
In Hampden, in September, during 9.7 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. Throughout the year, there are 105.9 rainfall days, and 16.69" (424mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Hampden is 12h and 34min.On the first day of the month, sunrise is at 6:53 am and sunset at 8:15 pm. On the last day of September, sunrise is at 7:33 am and sunset at 7:14 pm CDT.
Sunshine
In Hampden, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index in Hampden, North Dakota, is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 4 during September translates into these guidelines:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Frequently asked questions
What are September temperatures in Hampden?
What is the average humidity in September in Hampden?
How many days does it rain in September in Hampden?
When it does not snow in Hampden?
Does it snow in Hampden in September?
How many hours of daylight does Hampden have in September?
What time are sunrise and sunset in September in Hampden?
How long on average sun shines in September in Hampden?
How high is the UV index in September in Hampden?
Average temperature in September
Hampden, ND
- Average high temperature in September: 67.8°F
The warmest month (with the highest average high temperature) is August (78.3°F).
The month with the lowest average high temperature is January (13.5°F).
- Average low temperature in September: 49.6°F
The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (0.5°F).
Average pressure in September
Hampden, ND
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Hampden, ND
- Average wind speed in September: 10.1mph
The windiest month (with the highest average wind speed) is October (11.2mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).
Average humidity in September
Hampden, ND
- Average humidity in September: 62%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (60%).
Average rainfall in September
Hampden, ND
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is June (2.99").
The driest months (with the least rainfall) are January and February (0.63").
Average rainfall days in September
Hampden, ND
- Average rainfall days in September: 9.7 days
The month with the highest number of rainy days is June (19 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in September
Hampden, ND
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Hampden, ND
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (17.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Hampden, ND
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 6min).
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 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Hampden, ND
- Average sunshine days in September: 19 days
The month with the most sunshine days is August (20.1 days).
The month with the least sunshine days is June (8.7 days).
Average UV index in September
Hampden, 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, November and December (UV index 1).
Average cloud cover in September
Hampden, ND
- Average cloud cover in September: 30
The months with the most cloud cover are January and February (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Hampden, 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).
Hampden, North Dakota, USA
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