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
Dellwood's September weather features a light decline in high-temperatures, reducing from a moderately hot 77.5°F (25.3°C) in August to a pleasant 70.3°F (21.3°C). Nightly temperatures drop to an average low of 52°F (11.1°C) in September.Humidity
The average relative humidity in September is 79%.Rainfall
In Dellwood, in September, it is raining for 11.4 days, with typically 2.24" (57mm) of accumulated precipitation. In Dellwood, during the entire year, the rain falls for 129.4 days and collects up to 26.3" (668mm) of precipitation.Snowfall
In Dellwood, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:23 am and sunset at 7:35 pm. On the last day of September, in Dellwood, sunrise is at 6:57 am and sunset at 6:41 pm CDT.
Sunshine
In Dellwood, the average sunshine in September is 8.8h.UV index
In Dellwood, Wisconsin, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 3 during September translates into these guidelines:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
What is the temperature in September in Dellwood?
What is the average humidity in September in Dellwood?
How many days does it rain in September in Dellwood?
When it does not snow in Dellwood?
Does it snow in Dellwood in September?
What is the average length of the day in September in Dellwood?
When are sunrise and sunset in September in Dellwood?
How long on average sun shines in September in Dellwood?
How high is the UV index in September in Dellwood?
Average temperature in September
Dellwood, WI
- Average high temperature in September: 70.3°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (21.7°F).
- Average low temperature in September: 52°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 (9.9°F).
Average pressure in September
Dellwood, WI
- Average pressure in September: 30.02"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Dellwood, WI
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in September
Dellwood, WI
- Average humidity in September: 79%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Dellwood, WI
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is June (3.5").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in September
Dellwood, WI
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is June (16.6 days).
The month with the least rainy days is January (3.9 days).
Average snowfall in September
Dellwood, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.96").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Dellwood, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dellwood, WI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Dellwood, WI
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in September
Dellwood, WI
- Average UV index in September: 3
The month with the highest UV index is 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
Dellwood, WI
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in September
Dellwood, WI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
Dellwood, Wisconsin, USA
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