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
During the shift to September, Colonial Park records a mild decrease in average high-temperature, moving from a warm 80.4°F (26.9°C) in August to a still moderately hot 74.3°F (23.5°C). Throughout September, the average low-temperature in Colonial Park records at a refreshing 55.4°F (13°C).Humidity
In Colonial Park, the average relative humidity in September is 79%.Rainfall
September is the month with the least rainfall. Rain falls for 10 days and accumulates 0.91" (23mm) of precipitation.Snowfall
In Colonial Park, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 27min.On the first day of September, sunrise is at 6:35 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:50 pm EDT.
Sunshine
In September, the average sunshine in Colonial Park is 9h.UV index
The average daily maximum UV index in September in Colonial Park is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 4 in September translates into these instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What are September temperatures in Colonial Park?
What is the average humidity in September in Colonial Park?
What is the driest month in Colonial Park?
How much does it rain in Colonial Park in September?
When it does not snow in Colonial Park?
Does it snow in Colonial Park in September?
What is the average length of the day in September in Colonial Park?
When are sunrise and sunset in September in Colonial Park?
How many hours of sunshine does Colonial Park have in September?
What is the UV index intensity in September in Colonial Park?
Average temperature in September
Colonial Park, PA
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in September
Colonial Park, 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
Colonial Park, PA
- Average wind speed in September: 5.3mph
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 (4.7mph).
Average humidity in September
Colonial Park, PA
- Average humidity in September: 79%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are March and April (76%).
Average rainfall in September
Colonial Park, PA
- Average rainfall in September: 0.91"
The wettest month (with the highest rainfall) is August (1.73").
The driest month (with the least rainfall) is September (0.91").
Average rainfall days in September
Colonial Park, PA
- Average rainfall days in September: 10 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in September
Colonial Park, PA
- Average snowfall in September: 0"
The months with the highest snowfall are January and March (2.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Colonial Park, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Colonial Park, PA
- 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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Colonial Park, PA
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in September
Colonial Park, PA
- Average UV index in September: 4
The months with the highest UV index are May, June and 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
Colonial Park, PA
- Average cloud cover in September: 37
The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Colonial Park, 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).
Colonial Park, Pennsylvania, USA
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