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 start of September signals a gentle decrease in the average high-temperature, transitioning from a warm 78.4°F (25.8°C) in August to an agreeable 72.9°F (22.7°C). An average low-temperature of 53.8°F (12.1°C) is observed during the September nights.Humidity
The average relative humidity in September in Wetherill Junction, Pennsylvania, is 80%.Rainfall
September is the month with the least rainfall. Rain falls for 12.7 days and accumulates 2.09" (53mm) of precipitation.Snowfall
In Wetherill Junction, snow does not fall in June through September.Daylight
The average length of the day in September in Wetherill Junction is 12h and 27min.On the first day of September in Wetherill Junction, Pennsylvania, sunrise is at 6:32 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:48 pm EDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
In Wetherill Junction, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Frequently asked questions
What are the temperatures in Wetherill Junction in September?
What is the average humidity in September in Wetherill Junction?
What is the driest month in Wetherill Junction?
How much does it rain in Wetherill Junction in September?
When it does not snow in Wetherill Junction?
Does it snow in Wetherill Junction in September?
How many hours of daylight does Wetherill Junction have in September?
What time are sunrise and sunset in September in Wetherill Junction?
How long on average sun shines in September in Wetherill Junction?
What is the UV index intensity in September in Wetherill Junction?
Average temperature in September
Wetherill Junction, PA
- Average high temperature in September: 72.9°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in September: 53.8°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Wetherill Junction, 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
Wetherill Junction, PA
- Average wind speed in September: 5.5mph
The windiest months (with the highest average wind speed) are March and April (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Wetherill Junction, PA
- Average humidity in September: 80%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Wetherill Junction, PA
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is September (2.09").
Average rainfall days in September
Wetherill Junction, PA
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is January (9.9 days).
Average snowfall in September
Wetherill Junction, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (6.93").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Wetherill Junction, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Wetherill Junction, PA
- Average daylight in September: 12h and 3min
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: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 18min).
Average sunshine days in September
Wetherill Junction, PA
- Average sunshine days in September: 15 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is May (9.7 days).
Average UV index in September
Wetherill Junction, PA
- Average UV index in September: 4
The month with the highest UV index is July (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
Wetherill Junction, PA
- Average cloud cover in September: 39
The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Wetherill Junction, 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).
Wetherill Junction, Pennsylvania, USA
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