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
During the shift to September, a minor reduction in average high-temperature is observed, shifting from a moderately hot 85.6°F (29.8°C) in August to a still warm 79.3°F (26.3°C). The mean low-temperature during September nights in Royersville is a moderate 58.1°F (14.5°C).Humidity
In September, the average relative humidity is 75%.Rainfall
In September, the rain falls for 10.4 days. Throughout September, 1.22" (31mm) of precipitation is accumulated. Throughout the year, there are 146.5 rainfall days, and 19.65" (499mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 7:00 am and sunset at 8:00 pm. On the last day of September, sunrise is at 7:26 am and sunset at 7:14 pm EDT.
Sunshine
In Royersville, Ohio, the average sunshine in September is 8.1h.UV index
In Royersville, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 4 in September translates into this advice:
Take necessary precautions - Suggestions to elude sunburn are provided. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Royersville in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in Royersville in September?
What is the average length of the day in September in Royersville?
When are sunrise and sunset in September?
How long on average sun shines in September in Royersville?
What is the UV index intensity in September?
Average temperature in September
Royersville, OH
- Average high temperature in September: 79.3°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in September
Royersville, OH
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Royersville, OH
- Average wind speed in September: 4.7mph
The windiest months (with the highest average wind speed) are January and February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Royersville, OH
- Average humidity in September: 75%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Royersville, OH
- Average rainfall in September: 1.22"
The wettest month (with the highest rainfall) is May (2.05").
The driest month (with the least rainfall) is November (1.06").
Average rainfall days in September
Royersville, OH
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is November (8.4 days).
Average snowfall in September
Royersville, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Royersville, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.7 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
Royersville, OH
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 1min
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 48min).
Average sunshine days in September
Royersville, OH
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is February (11.1 days).
Average UV index in September
Royersville, 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 and December (UV index 2).
Average cloud cover in September
Royersville, OH
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Royersville, OH
- Average visibility in September: 5mi
The months with the highest visibility are April, October and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and December (5mi).
Royersville, Ohio, USA
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