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
Granville's September weather comes with a decrease in average high-temperatures, moving from a warm 80.8°F (27.1°C) in August to a pleasant 70.2°F (21.2°C). An average low-temperature of 50.9°F (10.5°C) is noted during the nights in September.Humidity
In September, the average relative humidity is 56%.Rainfall
In September, the rain falls for 8.6 days. Throughout September, 1.81" (46mm) of precipitation is accumulated. In Granville, during the entire year, the rain falls for 89.5 days and collects up to 13.94" (354mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Granville, the average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 7:02 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 7:23 pm CDT.
Sunshine
In Granville, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 4 in September translates into this advice:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September in Granville?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Granville have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Granville have in September?
What is the UV index intensity in September?
Average temperature in September
Granville, ND
- Average high temperature in September: 70.2°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (18.1°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (4.5°F).
Average pressure in September
Granville, ND
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is February (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Granville, ND
- Average wind speed in September: 9.8mph
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 (8.6mph).
Average humidity in September
Granville, ND
- Average humidity in September: 56%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (54%).
Average rainfall in September
Granville, ND
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is June (2.52").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days in September
Granville, ND
- Average rainfall days in September: 8.6 days
The month with the highest number of rainy days is June (14 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in September
Granville, ND
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.95").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Granville, ND
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Granville, 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 24min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).
Average sunshine days in September
Granville, ND
- Average sunshine days in September: 19.6 days
The month with the most sunshine days is October (21 days).
The month with the least sunshine days is June (13.6 days).
Average UV index in September
Granville, ND
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Granville, ND
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Granville, 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).
Granville, North Dakota, USA
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