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
Dahlen's transition into September involves a shift in temperature, receding from a moderately hot 79.5°F (26.4°C) in August to an agreeable 69.3°F (20.7°C). Nighttime temperature dips to a mean of 50.9°F (10.5°C) during September.Humidity
In Dahlen, the average relative humidity in September is 62%.Rainfall
In Dahlen, in September, it is raining for 9.2 days, with typically 1.73" (44mm) of accumulated precipitation. Throughout the year, there are 99.8 rainfall days, and 16.46" (418mm) of precipitation is accumulated.Snowfall
In Dahlen, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 34min.On the first day of September, sunrise is at 6:50 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:12 pm CDT.
Sunshine
The average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Dahlen?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Dahlen have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Dahlen have in September?
How high is the UV index in September?
Average temperature in September
Dahlen, ND
- Average high temperature in September: 69.3°F
The warmest month (with the highest average high temperature) is August (79.5°F).
The month with the lowest average high temperature is January (14.5°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (1°F).
Average pressure in September
Dahlen, 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
Dahlen, ND
- Average wind speed in September: 9.9mph
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 (8.4mph).
Average humidity in September
Dahlen, ND
- Average humidity in September: 62%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is August (60%).
Average rainfall in September
Dahlen, ND
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in September
Dahlen, ND
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is June (16.9 days).
The month with the least rainy days is February (2 days).
Average snowfall in September
Dahlen, ND
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.62").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Dahlen, ND
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Dahlen, 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 18min).
Average sunshine days in September
Dahlen, ND
- Average sunshine days in September: 19 days
The month with the most sunshine days is August (19.9 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Dahlen, 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
Dahlen, 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
Dahlen, 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).
Dahlen, North Dakota, USA
Weather forecast for your location
2. Allow the app to use your location