September weather forecastWestminster, OH
September
Weather in September
September, the first month of the autumn in Westminster, is also a moderately hot month, with an average temperature fluctuating between 55.6°F (13.1°C) and 73.6°F (23.1°C).Temperature
Westminster signifies an average high-temperature of a still moderately hot 73.6°F (23.1°C) in September, closely mirroring the 78.6°F (25.9°C) of August. During the September nights, an average temperature of 55.6°F (13.1°C) is observed.Humidity
The average relative humidity in September is 79%.Rainfall
In Westminster, during September, the rain falls for 11.5 days and regularly aggregates up to 1.54" (39mm) of precipitation. Throughout the year, there are 148.3 rainfall days, and 21.3" (541mm) of precipitation is accumulated.Snowfall
In Westminster, snow does not fall in May through September.Daylight
In Westminster, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 7:03 am and sunset at 8:07 pm. On the last day of September, sunrise is at 7:32 am and sunset at 7:19 pm EDT.
Sunshine
In Westminster, the average sunshine in September is 7.9h.UV index
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 the average person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Be vigilant - Preventing sunburn is recommended. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Westminster, OH
- Average high temperature in September: 73.6°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in September: 55.6°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Westminster, OH
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Westminster, OH
- Average wind speed in September: 6.7mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in September
Westminster, OH
- Average humidity in September: 79%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in September
Westminster, OH
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is May (2.72").
The driest months (with the least rainfall) are February and December (1.14").
Average rainfall days in September
Westminster, OH
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (6.6 days).
Average snowfall in September
Westminster, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Westminster, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Westminster, OH
- Average daylight in September: 12h and 30min
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: 7h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Westminster, OH
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10 days).
Average UV index in September
Westminster, OH
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Westminster, 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 32).
Average visibility in September
Westminster, OH
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are August and September (5mi).
