September weather forecastGermantown, OH
September
Weather in September
September, the first month of the autumn in Germantown, is still a warm month, with temperature in the range of an average high of 75.2°F (24°C) and an average low of 57.2°F (14°C).Temperature
With the onset of September, Germantown's average high-temperature slightly adjusts, moderately receding from August's 81°F (27.2°C) to a still moderately hot 75.2°F (24°C). Germantown, in September, observes a steady average low-temperature of 57.2°F (14°C).Humidity
In Germantown, the average relative humidity in September is 77%.Rainfall
In Germantown, in September, it is raining for 12.8 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 148.2 rainfall days, and 22.95" (583mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 7:06 am and sunset at 8:08 pm. On the last day of September, in Germantown, sunrise is at 7:33 am and sunset at 7:21 pm EDT.
Sunshine
The average sunshine in September is 8.2h.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 unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 4 translates into these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Germantown, OH
- Average high temperature in September: 75.2°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 (34°F).
- Average low temperature in September: 57.2°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in September
Germantown, OH
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Germantown, OH
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in September
Germantown, OH
- Average humidity in September: 77%
The months with the highest relative humidity are January, February and December (82%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in September
Germantown, OH
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is November (1.42").
Average rainfall days in September
Germantown, OH
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in September
Germantown, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Germantown, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.8 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, OH
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Germantown, OH
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in September
Germantown, OH
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Germantown, OH
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Germantown, OH
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
