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
The shift from August to September involves a decrease in the average high-temperature, from a warm 80.2°F (26.8°C) to an agreeable 70.7°F (21.5°C). The low-temperature averages to a fresh 51.4°F (10.8°C) during the nights of September.Humidity
In September, the average relative humidity is 62%.Rainfall
In Marion, in September, during 8.2 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, there are 94.8 rainfall days, and 14.92" (379mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 32min.On the first day of September, sunrise is at 6:54 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:14 pm CDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In Marion, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Take precautions - Protection against sun damage is advised. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Marion?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Marion have in September?
What is the UV index intensity in September?
Average temperature in September
Marion, ND
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (17.1°F).
- Average low temperature in September: 51.4°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (3.4°F).
Average pressure in September
Marion, ND
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is February (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Marion, ND
- Average wind speed in September: 10.2mph
The windiest month (with the highest average wind speed) is October (11.4mph).
The calmest months (with the lowest average wind speed) are July and August (8.5mph).
Average humidity in September
Marion, ND
- Average humidity in September: 62%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (61%).
Average rainfall in September
Marion, ND
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in September
Marion, ND
- Average rainfall days in September: 8.2 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is January (1.5 days).
Average snowfall in September
Marion, ND
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.11").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Marion, ND
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Marion, ND
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Marion, ND
- Average sunshine days in September: 19.1 days
The month with the most sunshine days is October (20 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in September
Marion, 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, February, November and December (UV index 1).
Average cloud cover in September
Marion, ND
- Average cloud cover in September: 28
The months with the most cloud cover are January and February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Marion, 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).
Marion, North Dakota, USA
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