September weather forecastNewtown Grant, PA
September
Weather in September
September, the first month of the autumn in Newtown Grant, is also a moderately hot month, with an average temperature fluctuating between 76.3°F (24.6°C) and 59.4°F (15.2°C).Temperature
September's onset introduces a mild reduction in the average high-temperature, from 83.3°F (28.5°C) in August to a still warm 76.3°F (24.6°C). During the nights in September, an average low-temperature of 59.4°F (15.2°C) is observed in Newtown Grant.Humidity
In September, the average relative humidity is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 12.2 days and accumulates 1.89" (48mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Newtown Grant is 12h and 27min.On the first day of the month, sunrise is at 6:28 am and sunset at 7:31 pm. On the last day of September, in Newtown Grant, Pennsylvania, sunrise is at 6:55 am and sunset at 6:43 pm EDT.
Sunshine
The average sunshine in September in Newtown Grant is 8.7h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Heed the precautions - It is counselled to guard against solar damage. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Newtown Grant, PA
- Average high temperature in September: 76.3°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in September: 59.4°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in September
Newtown Grant, PA
- Average pressure in September: 30.05"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
Newtown Grant, PA
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in September
Newtown Grant, PA
- Average humidity in September: 75%
The months with the highest relative humidity are February and October (78%).
The months with the lowest relative humidity are April, July and August (72%).
Average rainfall in September
Newtown Grant, PA
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is December (3.31").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in September
Newtown Grant, PA
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Newtown Grant, PA
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.78").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Newtown Grant, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Newtown Grant, PA
- 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 42min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Newtown Grant, PA
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in September
Newtown Grant, PA
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Newtown Grant, PA
- Average cloud cover in September: 38
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Newtown Grant, PA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
