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
As August shifts into September, a slight alteration in temperatures is observed, with average highs reducing from a warm 81°F (27.2°C) to an agreeable 70.7°F (21.5°C). During September, the temperature in Tappen, North Dakota, tends to dip to an average of 51.3°F (10.7°C) at night.Humidity
The average relative humidity in September is 61%.Rainfall
In Tappen, in September, during 8.5 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, there are 96.6 rainfall days, and 16.77" (426mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Tappen.Daylight
In September, the average length of the day is 12h and 32min.On the first day of September in Tappen, sunrise is at 6:59 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 7:19 pm CDT.
Sunshine
The average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September in Tappen is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 4 during September translates into the following directions:
Act with care - Obligation to protect against skin and eye damage is highlighted. Around midday, solar radiation is most harmful; hence, exposure should be limited. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Tappen in September?
What is the average humidity in September in Tappen?
How much does it rain in Tappen in September?
When it does not snow in Tappen?
Does it snow in Tappen in September?
What is the average length of the day in September in Tappen?
When is the sunrise / sunset in September in Tappen?
How many hours of sunshine does Tappen have in September?
What is the UV index intensity in September in Tappen?
Average temperature in September
Tappen, ND
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (17.8°F).
- Average low temperature in September: 51.3°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 (3.6°F).
Average pressure in September
Tappen, 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
Tappen, ND
- Average wind speed in September: 10.1mph
The windiest month (with the highest average wind speed) is October (11.2mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in September
Tappen, ND
- Average humidity in September: 61%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (59%).
Average rainfall in September
Tappen, ND
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is June (2.95").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in September
Tappen, ND
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is February (1.6 days).
Average snowfall in September
Tappen, ND
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Tappen, ND
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Tappen, 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 0min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Tappen, ND
- Average sunshine days in September: 19.8 days
The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is June (12 days).
Average UV index in September
Tappen, 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
Tappen, ND
- Average cloud cover in September: 26
The month with the most cloud cover is February (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 24).
Average visibility in September
Tappen, 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).
Tappen, North Dakota, USA
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