September weather forecastHamersville, OH
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Hamersville, Ohio, with an average temperature fluctuating between 77.2°F (25.1°C) and 58.1°F (14.5°C).Temperature
The transition to September results in a modest reduction in average high-temperature, moving from a moderately hot 82.9°F (28.3°C) in August to a still warm 77.2°F (25.1°C). Hamersville cools down to an average low-temperature of 58.1°F (14.5°C) throughout the month of September.Humidity
The months with the lowest humidity in Hamersville are August through November, with an average relative humidity of 76%.Rainfall
September is the month with the least rainfall in Hamersville. Rain falls for 12.4 days and accumulates 1.42" (36mm) of precipitation.Snowfall
In Hamersville, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 7:05 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:19 pm EDT.
Sunshine
In September, the average sunshine is 8.2h.UV index
In September, the average daily maximum UV index in Hamersville is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. 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
Average temperature in September
Hamersville, OH
- Average high temperature in September: 77.2°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36.3°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in September
Hamersville, OH
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Hamersville, OH
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in September
Hamersville, OH
- Average humidity in September: 76%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are August, September, October and November (76%).
Average rainfall in September
Hamersville, OH
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in September
Hamersville, OH
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is May (17.2 days).
The months with the least rainy days are January and November (9 days).
Average snowfall in September
Hamersville, OH
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Hamersville, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.7 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
Hamersville, 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 30min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Hamersville, OH
- Average sunshine days in September: 16 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in September
Hamersville, OH
- Average UV index in September: 4
The months with the highest UV index are May, 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
Hamersville, OH
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Hamersville, OH
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are May and July (5mi).
