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
Germantown's September weather shows a modest shift in high-temperatures, falling from August's moderately hot 76.6°F (24.8°C) to a pleasant 70°F (21.1°C). Germantown experiences an average low-temperature of 55.4°F (13°C) in month of September.Humidity
The average relative humidity in September in Germantown is 79%.Rainfall
In Germantown, in September, it is raining for 12.4 days, with typically 2.17" (55mm) of accumulated precipitation. In Germantown, Wisconsin, during the entire year, the rain falls for 139.2 days and collects up to 25.28" (642mm) of precipitation.Snowfall
May through September are months without snowfall in Germantown.Daylight
The average length of the day in September in Germantown is 12h and 29min.On the first day of September, sunrise is at 6:17 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:34 pm CDT.
Sunshine
In Germantown, the average sunshine in September is 9.2h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 4 in September translates into this advice:
Ensure safety - Recommendations to avert sunburn are presented. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Frequently asked questions
What are September temperatures in Germantown?
What is the average humidity in September in Germantown?
How many days does it rain in September in Germantown?
When it does not snow in Germantown?
Does it snow in Germantown in September?
How many hours of daylight does Germantown have in September?
When are sunrise and sunset in September in Germantown?
How many hours of sunshine does Germantown have in September?
What is the UV index reading in September in Germantown?
Average temperature in September
Germantown, WI
- Average high temperature in September: 70°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in September
Germantown, WI
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Germantown, WI
- Average wind speed in September: 8.2mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in September
Germantown, WI
- Average humidity in September: 79%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (76%).
Average rainfall in September
Germantown, WI
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in September
Germantown, WI
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in September
Germantown, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.02").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Germantown, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Germantown, WI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Germantown, WI
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is December (15.9 days).
The month with the least sunshine days is April (12 days).
Average UV index in September
Germantown, WI
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Germantown, WI
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Germantown, WI
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Germantown, Wisconsin, USA
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