September weather forecastOak Hill, OH
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Oak Hill, Ohio, with temperature in the range of an average high of 78.1°F (25.6°C) and an average low of 57.4°F (14.1°C).Temperature
In Oak Hill, the average high-temperature in September slightly decreases from a warm 84.7°F (29.3°C) in August to a still moderately hot 78.1°F (25.6°C). An average low-temperature of 57.4°F (14.1°C) marks the nights throughout September.Humidity
August and September, with an average relative humidity of 75%, are the least humid months.Rainfall
September and November are months with the least rain in Oak Hill when the rain falls for 7.9 days and typically aggregates up to 0.75" (19mm) of rain.Snowfall
In Oak Hill, 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 6:59 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:14 pm EDT.
Sunshine
In September, the average sunshine is 8h.UV index
In Oak Hill, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Be vigilant - Preventing sunburn is recommended. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. 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
Oak Hill, OH
- Average high temperature in September: 78.1°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in September: 57.4°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in September
Oak Hill, OH
- Average pressure in September: 30.05"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Oak Hill, OH
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in September
Oak Hill, OH
- Average humidity in September: 75%
The months with the highest relative humidity are January and February (82%).
The months with the lowest relative humidity are August and September (75%).
Average rainfall in September
Oak Hill, OH
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is May (1.57").
The driest months (with the least rainfall) are September and November (0.75").
Average rainfall days in September
Oak Hill, OH
- Average rainfall days in September: 7.9 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is November (6.5 days).
Average snowfall in September
Oak Hill, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.3").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Oak Hill, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.6 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
Oak Hill, 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 0min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Oak Hill, OH
- Average sunshine days in September: 19.2 days
The month with the most sunshine days is November (21.6 days).
The month with the least sunshine days is May (13.3 days).
Average UV index in September
Oak Hill, 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
Oak Hill, OH
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Oak Hill, OH
- Average visibility in September: 5mi
The months with the highest visibility are March, April, October and November (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and December (5mi).
