September weather forecastMechanicstown, OH
September
Weather in September
The first month of the autumn, September, is still a warm month in Mechanicstown, Ohio, with an average temperature varying between 54.9°F (12.7°C) and 74.7°F (23.7°C).Temperature
The beginning of September brings a slight decrease in the average high-temperature, transitioning from a warm 81.1°F (27.3°C) in August to a still moderately hot 74.7°F (23.7°C). An average temperature of 54.9°F (12.7°C) is recorded during the nights in September.Humidity
In September, the average relative humidity is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 14.7 days and typically collects 2.28" (58mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:51 am and sunset at 7:55 pm. On the last day of September, sunrise is at 7:20 am and sunset at 7:07 pm EDT.
Sunshine
The average sunshine in September is 8.3h.UV index
In Mechanicstown, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 during September translates into the following directions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mechanicstown, OH
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in September: 54.9°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in September
Mechanicstown, OH
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Mechanicstown, OH
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in September
Mechanicstown, OH
- Average humidity in September: 79%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in September
Mechanicstown, OH
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is April (3.27").
The driest month (with the least rainfall) is September (2.28").
Average rainfall days in September
Mechanicstown, OH
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is January (9.5 days).
Average snowfall in September
Mechanicstown, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Mechanicstown, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mechanicstown, OH
- Average daylight in September: 12h and 24min
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: 8h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Mechanicstown, OH
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is November (13.7 days).
The month with the least sunshine days is May (8.4 days).
Average UV index in September
Mechanicstown, 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
Mechanicstown, OH
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Mechanicstown, OH
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).





