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's arrival subtly correlates with a reduction in the average high-temperature, down from a warm 81.1°F (27.3°C) in August to an agreeable 72.7°F (22.6°C). Stirum encounters an average low-temperature of 52.3°F (11.3°C) during September nights.Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 62%.Rainfall
In September, in Stirum, the rain falls for 9.5 days. Throughout September, 1.5" (38mm) of precipitation is accumulated. Throughout the year, in Stirum, North Dakota, there are 109.5 rainfall days, and 20.39" (518mm) of precipitation is accumulated.Snowfall
In Stirum, North Dakota, snow does not fall in June through September.Daylight
In Stirum, the average length of the day in September is 12h and 32min.On the first day of September in Stirum, North Dakota, sunrise is at 6:52 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:12 pm CDT.
Sunshine
The average sunshine in September in Stirum is 8.8h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Make use of precautions - It is urged to ward off sun damage. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Stirum?
What are the least humid months in Stirum?
What is the average humidity in September in Stirum?
How much does it rain in Stirum in September?
When it does not snow in Stirum?
Does it snow in Stirum in September?
How many hours of daylight does Stirum have in September?
When are sunrise and sunset in September in Stirum?
How long on average sun shines in September in Stirum?
What is the UV index intensity in September in Stirum?
Average temperature in September
Stirum, ND
- Average high temperature in September: 72.7°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (19°F).
- Average low temperature in September: 52.3°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in September
Stirum, ND
- Average pressure in September: 29.96"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
Stirum, ND
- Average wind speed in September: 9.6mph
The windiest month (with the highest average wind speed) is October (10.8mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).
Average humidity in September
Stirum, ND
- Average humidity in September: 62%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are August and September (62%).
Average rainfall in September
Stirum, ND
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in September
Stirum, ND
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (2.4 days).
Average snowfall in September
Stirum, ND
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Stirum, ND
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Stirum, ND
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
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: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Stirum, ND
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in September
Stirum, 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 and November (UV index 1).
Average cloud cover in September
Stirum, ND
- Average cloud cover in September: 26
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Stirum, 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).
Stirum, North Dakota, USA
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