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 comes with a decrease in the average high-temperature, falling from a warm 81.5°F (27.5°C) in August to a pleasant 71.4°F (21.9°C). Nighttime temperatures in Hannover hover around an average low of 51.6°F (10.9°C) in September.Humidity
In Hannover, the average relative humidity in September is 56%.Rainfall
In Hannover, North Dakota, in September, during 8.5 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. In Hannover, during the entire year, the rain falls for 102.8 days and collects up to 15.31" (389mm) of precipitation.Snowfall
June through September are months without snowfall in Hannover, North Dakota.Daylight
In September, the average length of the day is 12h and 32min.On the first day of September in Hannover, sunrise is at 7:06 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 7:26 pm CDT.
Sunshine
In Hannover, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
What is the average September temperature in Hannover?
What is the average humidity in September in Hannover?
How much does it rain in Hannover in September?
When it does not snow in Hannover?
Does it snow in Hannover in September?
What is the average length of the day in September in Hannover?
When is the sunrise / sunset in September in Hannover?
How many hours of sunshine does Hannover have in September?
What is the UV index intensity in September in Hannover?
Average temperature in September
Hannover, ND
- Average high temperature in September: 71.4°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (20.8°F).
- Average low temperature in September: 51.6°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (6.8°F).
Average pressure in September
Hannover, ND
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Hannover, ND
- Average wind speed in September: 9.9mph
The windiest months (with the highest average wind speed) are April and October (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).
Average humidity in September
Hannover, ND
- Average humidity in September: 56%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (54%).
Average rainfall in September
Hannover, ND
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is June (2.64").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in September
Hannover, ND
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is June (15.2 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in September
Hannover, ND
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Hannover, ND
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Hannover, 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: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Hannover, ND
- Average sunshine days in September: 20 days
The month with the most sunshine days is September (20 days).
The month with the least sunshine days is June (12.9 days).
Average UV index in September
Hannover, 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 February (UV index 1).
Average cloud cover in September
Hannover, ND
- Average cloud cover in September: 25
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Hannover, 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).
Hannover, North Dakota, USA
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