September weather forecastMartinsburg, OH
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Martinsburg, Ohio, with an average temperature ranging between min 54.9°F (12.7°C) and max 74.3°F (23.5°C).Temperature
The arrival of September is marked by a minor reduction in average high-temperature, sliding from a moderately hot 79.9°F (26.6°C) in August to a still warm 74.3°F (23.5°C). During the nights in September, an average low-temperature of 54.9°F (12.7°C) is observed.Humidity
The average relative humidity in September in Martinsburg is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.2 days and typically collects 1.22" (31mm) of precipitation.Snowfall
In Martinsburg, snow does not fall in May through September.Daylight
In Martinsburg, the average length of the day in September is 12h and 27min.On the first day of September in Martinsburg, sunrise is at 6:57 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:12 pm EDT.
Sunshine
In Martinsburg, the average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index in Martinsburg is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Exercise prevention - Precautions against solar damage are endorsed. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Martinsburg, OH
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (32.4°F).
- Average low temperature in September: 54.9°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in September
Martinsburg, OH
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Martinsburg, OH
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in September
Martinsburg, OH
- Average humidity in September: 79%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is November (77%).
Average rainfall in September
Martinsburg, 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 September (1.22").
Average rainfall days in September
Martinsburg, OH
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is May (17.3 days).
The months with the least rainy days are January and February (8.3 days).
Average snowfall in September
Martinsburg, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Martinsburg, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Martinsburg, 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 24min).
- Average sunshine in September: 8h and 12min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Martinsburg, OH
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in September
Martinsburg, OH
- Average UV index in September: 4
The months with the highest UV index are 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
Martinsburg, OH
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Martinsburg, OH
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
