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
The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a moderately hot 81.9°F (27.7°C) in August to a still warm 75°F (23.9°C). Throughout the month of September, West Grove sees a steady low-temperature average of 58.8°F (14.9°C).Humidity
February, May, September, October and December, with an average relative humidity of 79%, are the most humid months in West Grove.Rainfall
January, September and November are months with the least rain in West Grove when the rain falls for 10.8 days and typically aggregates up to 0.87" (22mm) of rain.Snowfall
In West Grove, snow does not fall in June through October.Daylight
The average length of the day in September in West Grove is 12h and 26min.On the first day of September in West Grove, sunrise is at 6:31 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:46 pm EDT.
Sunshine
In September, the average sunshine is 8.9h.UV index
The average daily maximum UV index in September in West Grove is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
What are September temperatures in West Grove?
What are the most humid months in West Grove?
What is the average humidity in September in West Grove?
What is the driest month in West Grove?
How many days does it rain in September in West Grove?
When it does not snow in West Grove?
What is the average length of the day in September in West Grove?
When are sunrise and sunset in September in West Grove?
How many hours of sunshine does West Grove have in September?
What is the UV index intensity in September in West Grove?
Average temperature in September
West Grove, PA
- Average high temperature in September: 75°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in September: 58.8°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in September
West Grove, PA
- Average pressure in September: 30.06"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
West Grove, PA
- Average wind speed in September: 5.8mph
The windiest months (with the highest average wind speed) are February and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
West Grove, PA
- Average humidity in September: 79%
The months with the highest relative humidity are February, May, September, October and December (79%).
The months with the lowest relative humidity are March and April (75%).
Average rainfall in September
West Grove, PA
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is August (1.93").
The driest months (with the least rainfall) are January, September and November (0.87").
Average rainfall days in September
West Grove, PA
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in September
West Grove, PA
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.26").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
West Grove, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
West Grove, PA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
West Grove, PA
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in September
West Grove, 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, November and December (UV index 2).
Average cloud cover in September
West Grove, PA
- Average cloud cover in September: 37
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
West Grove, PA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
West Grove, Pennsylvania, USA
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