September weather forecastSilverdale, PA
September
Weather in September
The first month of the autumn, September, is still a warm month in Silverdale, Pennsylvania, with temperature in the range of an average high of 75.7°F (24.3°C) and an average low of 57.2°F (14°C).Temperature
The shift from August to September coincides with a small decrease in the average high-temperature, down to a still moderately hot 75.7°F (24.3°C) from a warm 82.4°F (28°C). Silverdale, during September, witnesses an average low-temperature of 57.2°F (14°C).Humidity
In September, the average relative humidity in Silverdale is 77%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.3 days and typically collects 1.85" (47mm) of precipitation.Snowfall
In Silverdale, snow does not fall in June through September.Daylight
In Silverdale, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:29 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:44 pm EDT.
Sunshine
The average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 4 suggests these recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Silverdale, PA
- Average high temperature in September: 75.7°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in September: 57.2°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure in September
Silverdale, PA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Silverdale, PA
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Silverdale, PA
- Average humidity in September: 77%
The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall in September
Silverdale, PA
- Average rainfall in September: 1.85"
The wettest months (with the highest rainfall) are July and August (3.07").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
Silverdale, PA
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in September
Silverdale, PA
- Average snowfall in September: 0"
The month with the highest snowfall is March (4.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Silverdale, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Silverdale, 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 48min
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
Silverdale, PA
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (11.9 days).
Average UV index in September
Silverdale, 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
Silverdale, PA
- Average cloud cover in September: 38
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Silverdale, PA
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are February, May and September (5mi).
