September weather forecastDewart, PA
September
Weather in September
September, the first month of the autumn in Dewart, is still a pleasant month, with an average temperature ranging between max 72.5°F (22.5°C) and min 52.3°F (11.3°C).Temperature
In the transition to September, Dewart observes a minor drop in the average high-temperature, shifting from a warm 79.3°F (26.3°C) in August to an agreeable 72.5°F (22.5°C). Dewart's September nights cool down to an average low-temperature of 52.3°F (11.3°C).Humidity
The average relative humidity in September is 80%.Rainfall
In September, the rain falls for 12.7 days. Throughout September, 2.28" (58mm) of precipitation is accumulated. In Dewart, during the entire year, the rain falls for 167.6 days and collects up to 30.83" (783mm) of precipitation.Snowfall
June through September are months without snowfall in Dewart.Daylight
In Dewart, the average length of the day in September is 12h and 28min.On the first day of September in Dewart, sunrise is at 6:34 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:50 pm EDT.
Sunshine
In Dewart, the average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A daily high UV index of 4 in September leads to these guidelines:
Act with care - The suggestion to avoid sunburn is emphasized. Direct exposure to the Sun during its peak hours around mid-day should be minimized for 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
Average temperature in September
Dewart, PA
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in September: 52.3°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Dewart, PA
- Average pressure in September: 30.07"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
Dewart, PA
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Dewart, PA
- Average humidity in September: 80%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are March and April (77%).
Average rainfall in September
Dewart, PA
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is November (2.01").
Average rainfall days in September
Dewart, PA
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (9.7 days).
Average snowfall in September
Dewart, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Dewart, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dewart, PA
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in September
Dewart, PA
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in September
Dewart, PA
- 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, March, October, November and December (UV index 2).
Average cloud cover in September
Dewart, PA
- Average cloud cover in September: 39
The months with the most cloud cover are January, February and December (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Dewart, PA
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
