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
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from 80.2°F (26.8°C) to a still moderately hot 73.8°F (23.2°C). During the month of September, an average temperature of 54.7°F (12.6°C) is noted during the nights in Windsor Castle.Humidity
The average relative humidity in September is 79%.Rainfall
September is the month with the least rainfall in Windsor Castle. Rain falls for 11.2 days and accumulates 1.61" (41mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Windsor Castle is 12h and 27min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:35 pm. On the last day of September, in Windsor Castle, Pennsylvania, sunrise is at 6:59 am and sunset at 6:47 pm EDT.
Sunshine
In Windsor Castle, the average sunshine in September is 8.7h.UV index
In Windsor Castle, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 4 during September translates into the following directions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Frequently asked questions
What is the temperature in September in Windsor Castle?
What is the average humidity in September in Windsor Castle?
What is the driest month in Windsor Castle?
How much does it rain in Windsor Castle in September?
When it does not snow in Windsor Castle?
Does it snow in Windsor Castle in September?
How many hours of daylight does Windsor Castle have in September?
When is the sunrise / sunset in September in Windsor Castle?
How long on average sun shines in September in Windsor Castle?
What is the UV index intensity in September in Windsor Castle?
Average temperature in September
Windsor Castle, PA
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in September: 54.7°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in September
Windsor Castle, 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
Windsor Castle, PA
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Windsor Castle, PA
- Average humidity in September: 79%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Windsor Castle, PA
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is August (2.87").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in September
Windsor Castle, PA
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in September
Windsor Castle, PA
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.86").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Windsor Castle, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Windsor Castle, 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 18min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in September
Windsor Castle, PA
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in September
Windsor Castle, PA
- Average UV index in September: 4
The month with the highest UV index is June (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
Windsor Castle, PA
- Average cloud cover in September: 38
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Windsor Castle, PA
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, June, July and November (6mi).
The months with the lowest visibility are February, May, August, September, October and December (5mi).
Windsor Castle, Pennsylvania, USA
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