September weather forecastSpencerville, OH
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Spencerville, Ohio, with an average temperature fluctuating between 55.6°F (13.1°C) and 73.9°F (23.3°C).Temperature
September welcomes an average high-temperature of a still moderately hot 73.9°F (23.3°C), not much different from the preceding month. Spencerville records an average nighttime low of 55.6°F (13.1°C) in September.Humidity
In Spencerville, the average relative humidity in September is 79%.Rainfall
In Spencerville, Ohio, in September, during 14.5 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. Throughout the year, there are 172 rainfall days, and 29.92" (760mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Spencerville, Ohio, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 7:05 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 7:20 pm EDT.
Sunshine
In Spencerville, the average sunshine in September is 7.9h.UV index
The average daily maximum UV index in September in Spencerville is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Spencerville, OH
- Average high temperature in September: 73.9°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in September: 55.6°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Spencerville, OH
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Spencerville, OH
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in September
Spencerville, OH
- Average humidity in September: 79%
The months with the highest relative humidity are January, February and December (83%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in September
Spencerville, OH
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is May (3.54").
The driest month (with the least rainfall) is February (1.85").
Average rainfall days in September
Spencerville, OH
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Spencerville, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Spencerville, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Spencerville, OH
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Spencerville, OH
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is May (9.1 days).
Average UV index in September
Spencerville, OH
- 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 December (UV index 1).
Average cloud cover in September
Spencerville, OH
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in September
Spencerville, OH
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).
