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
September signifies a minor drop in average high-temperature, transitioning from a moderately hot 82.9°F (28.3°C) in August to a still warm 76.6°F (24.8°C). Old Washington records an average low-temperature of 55.4°F (13°C) throughout the month of September.Humidity
The average relative humidity in September is 78%.Rainfall
September and November are months with the least rain when the rain falls for 9.8 days and typically aggregates up to 0.67" (17mm) of rain.Snowfall
In Old Washington, 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 6:54 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:09 pm EDT.
Sunshine
In Old Washington, 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 exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 4 during September translates into the following directions:
Ensure safety - Sun damage prevention is strongly urged. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Old Washington in September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Old Washington have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September in Old Washington?
Average temperature in September
Old Washington, OH
- Average high temperature in September: 76.6°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure in September
Old Washington, OH
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Old Washington, OH
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in September
Old Washington, OH
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are April, June, July, August and November (77%).
Average rainfall in September
Old Washington, OH
- Average rainfall in September: 0.67"
The wettest month (with the highest rainfall) is June (1.26").
The driest months (with the least rainfall) are September and November (0.67").
Average rainfall days in September
Old Washington, OH
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is November (6.7 days).
Average snowfall in September
Old Washington, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Old Washington, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Old Washington, OH
- Average daylight in September: 12h and 2min
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 24min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Old Washington, OH
- Average sunshine days in September: 18.4 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is February (13.6 days).
Average UV index in September
Old Washington, OH
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Old Washington, OH
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Old Washington, OH
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Old Washington, Ohio, USA
Weather forecast for your location
2. Allow the app to use your location