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
Bethlehem, West Virginia, in September experiences a gentle temperature dip, with average high-temperatures reducing from 82°F (27.8°C) in August to a still warm 75.7°F (24.3°C). September witnesses an average low-temperature hovering around a cool 54.9°F (12.7°C).Humidity
The average relative humidity in September is 79%.Rainfall
In Bethlehem, West Virginia, during September, the rain falls for 13.2 days and regularly aggregates up to 1.93" (49mm) of precipitation. Throughout the year, in Bethlehem, West Virginia, there are 166.3 rainfall days, and 25.94" (659mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Bethlehem, West Virginia.Daylight
The average length of the day in September in Bethlehem is 12h and 26min.On the first day of September in Bethlehem, West Virginia, sunrise is at 6:51 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:06 pm EDT.
Sunshine
The average sunshine in September in Bethlehem is 8.2h.UV index
The average daily maximum UV index in September in Bethlehem, West Virginia, is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, an average UV index of 4 transforms into the following instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
What is the usual temperature for Bethlehem in September?
What is the average humidity in September in Bethlehem?
How many days does it rain in September in Bethlehem?
When it does not snow in Bethlehem?
How many hours of daylight does Bethlehem have in September?
When is the sunrise / sunset in September in Bethlehem?
How long on average sun shines in September in Bethlehem?
What is the UV index reading in September in Bethlehem?
Average temperature in September
Bethlehem, WV
- Average high temperature in September: 75.7°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in September: 54.9°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure in September
Bethlehem, WV
- 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
Bethlehem, WV
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).
Average humidity in September
Bethlehem, WV
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are April and August (77%).
Average rainfall in September
Bethlehem, WV
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is November (1.69").
Average rainfall days in September
Bethlehem, WV
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in September
Bethlehem, WV
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.66").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Bethlehem, WV
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bethlehem, WV
- 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 0min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Bethlehem, WV
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is February (9.4 days).
Average UV index in September
Bethlehem, WV
- Average UV index in September: 4
The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Bethlehem, WV
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Bethlehem, WV
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January and February (4mi).
Bethlehem, West Virginia, USA
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