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 arrival of September corresponds with a light shift in temperature, down from a warm 77.4°F (25.2°C) in August to a pleasant 70.7°F (21.5°C). The average nighttime temperature lowers to a fresh 50.4°F (10.2°C) throughout September.Humidity
The average relative humidity in September in Union Dale, Pennsylvania, is 80%.Rainfall
In September, in Union Dale, the rain falls for 11.8 days. Throughout September, 1.65" (42mm) of precipitation is accumulated. Throughout the year, in Union Dale, there are 152.2 rainfall days, and 23.94" (608mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Union Dale, Pennsylvania, is 12h and 28min.On the first day of the month, sunrise is at 6:28 am and sunset at 7:34 pm. On the last day of September, in Union Dale, sunrise is at 6:58 am and sunset at 6:44 pm EDT.
Sunshine
The average sunshine in September in Union Dale is 8.6h.UV index
The average daily maximum UV index in September in Union Dale is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: During September, 3 as the daily maximum UV index converts into the following advice:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Frequently asked questions
What is the temperature in September in Union Dale?
What is the average humidity in September in Union Dale?
How many days does it rain in September in Union Dale?
When it does not snow in Union Dale?
Does it snow in Union Dale in September?
What is the average length of the day in September in Union Dale?
What time are sunrise and sunset in September in Union Dale?
How long on average sun shines in September in Union Dale?
How high is the UV index in September in Union Dale?
Average temperature in September
Union Dale, PA
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in September: 50.4°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in September
Union Dale, 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 (29.93"Hg).
Average wind speed in September
Union Dale, PA
- Average wind speed in September: 5.9mph
The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Union Dale, PA
- Average humidity in September: 80%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is July (78%).
Average rainfall in September
Union Dale, PA
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is August (2.48").
The driest month (with the least rainfall) is January (1.54").
Average rainfall days in September
Union Dale, PA
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in September
Union Dale, PA
- Average snowfall in September: 0"
The month with the highest snowfall is March (5.55").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Union Dale, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Union Dale, PA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are February and December (Average sunshine: 3h and 12min).
Average sunshine days in September
Union Dale, PA
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is April (9.8 days).
Average UV index in September
Union Dale, PA
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Union Dale, PA
- Average cloud cover in September: 43
The months with the most cloud cover are January, February and December (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in September
Union Dale, 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).
Union Dale, Pennsylvania, USA
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