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 start of September involves a temperature drop, moving from a moderately hot 79.9°F (26.6°C) in August to a pleasant 70°F (21.1°C). An average low-temperature of 51.4°F (10.8°C) is noted during the month of September.Humidity
In Northwood, the average relative humidity in September is 62%.Rainfall
In September, the rain falls for 8.3 days. Throughout September, 1.54" (39mm) of precipitation is accumulated. Throughout the year, there are 91.5 rainfall days, and 15.31" (389mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 33min.On the first day of September in Northwood, sunrise is at 6:49 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:10 pm CDT.
Sunshine
In Northwood, the average sunshine in September is 8.7h.UV index
In Northwood, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Exercise prevention - Warding off sunburn is urged. It's recommended to limit sun exposure when its radiation is at its peak during midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in Northwood in September?
How many hours of daylight does Northwood have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Northwood have in September?
How high is the UV index in September?
Average temperature in September
Northwood, ND
- Average high temperature in September: 70°F
The warmest month (with the highest average high temperature) is August (79.9°F).
The month with the lowest average high temperature is January (15.4°F).
- Average low temperature in September: 51.4°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (1.4°F).
Average pressure in September
Northwood, 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
Northwood, ND
- Average wind speed in September: 10.1mph
The windiest month (with the highest average wind speed) is October (11mph).
The calmest months (with the lowest average wind speed) are July and August (8.5mph).
Average humidity in September
Northwood, 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 (60%).
Average rainfall in September
Northwood, ND
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is June (2.99").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
Northwood, ND
- Average rainfall days in September: 8.3 days
The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is February (1.2 days).
Average snowfall in September
Northwood, ND
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Northwood, ND
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Northwood, ND
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- 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 24min).
Average sunshine days in September
Northwood, ND
- Average sunshine days in September: 20.3 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Northwood, 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 and November (UV index 1).
Average cloud cover in September
Northwood, ND
- Average cloud cover in September: 29
The months with the most cloud cover are January and February (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Northwood, 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).
Northwood, North Dakota, USA
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