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
With the onset of September, Keyser Valley's average high-temperature slightly adjusts, moderately receding from August's warm 77.9°F (25.5°C) to an agreeable 71.2°F (21.8°C). Keyser Valley experiences an average low-temperature of 51.1°F (10.6°C) in month of September.Humidity
In September, the average relative humidity is 80%.Rainfall
September is the month with the least rainfall. Rain falls for 12.6 days and accumulates 2.01" (51mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Keyser Valley, the average length of the day in September is 12h and 28min.On the first day of September in Keyser Valley, sunrise is at 6:29 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:45 pm EDT.
Sunshine
In September, the average sunshine in Keyser Valley is 8.5h.UV index
The average daily maximum UV index in September in Keyser Valley, Pennsylvania, is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 3 suggests these recommendations:
Be vigilant - Preventing sunburn is recommended. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Frequently asked questions
What are the temperatures in Keyser Valley in September?
What is the average humidity in September in Keyser Valley?
What is the driest month in Keyser Valley?
How much does it rain in Keyser Valley in September?
When it does not snow in Keyser Valley?
Does it snow in Keyser Valley in September?
What is the average length of the day in September in Keyser Valley?
When are sunrise and sunset in September in Keyser Valley?
How many hours of sunshine does Keyser Valley have in September?
What is the UV index reading in September in Keyser Valley?
Average temperature in September
Keyser Valley, PA
- Average high temperature in September: 71.2°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in September: 51.1°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in September
Keyser Valley, PA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Keyser Valley, PA
- Average wind speed in September: 5.8mph
The windiest months (with the highest average wind speed) are January, February, March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Keyser Valley, PA
- Average humidity in September: 80%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is July (77%).
Average rainfall in September
Keyser Valley, PA
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is July (3.15").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in September
Keyser Valley, PA
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in September
Keyser Valley, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (9.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Keyser Valley, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Keyser Valley, PA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 24min).
Average sunshine days in September
Keyser Valley, PA
- Average sunshine days in September: 15 days
The month with the most sunshine days is September (15 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in September
Keyser Valley, PA
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Keyser Valley, PA
- Average cloud cover in September: 44
The months with the most cloud cover are January, February and December (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in September
Keyser Valley, PA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Keyser Valley, Pennsylvania, USA
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