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 start of September signals a gentle decrease in the average high-temperature, transitioning from a warm 79°F (26.1°C) in August to an agreeable 72.5°F (22.5°C). During September, the nighttime temperature averages to a cool 53.4°F (11.9°C).Humidity
In Union Hill, the average relative humidity in September is 80%.Rainfall
September is the month with the least rainfall. Rain falls for 12.1 days and accumulates 2.01" (51mm) of precipitation.Snowfall
In Union Hill, snow does not fall in June through September.Daylight
In Union Hill, the average length of the day in September is 12h and 27min.On the first day of September in Union Hill, sunrise is at 6:30 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:45 pm EDT.
Sunshine
In Union Hill, the average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September in Union Hill is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Undertake precautions - Obligation exists to protect against skin and eye damage. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. 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 usual temperature for Union Hill in September?
What is the average humidity in September in Union Hill?
What is the driest month in Union Hill?
How many days does it rain in September in Union Hill?
When it does not snow in Union Hill?
Does it snow in Union Hill in September?
How many hours of daylight does Union Hill have in September?
What time are sunrise and sunset in September in Union Hill?
How long on average sun shines in September in Union Hill?
What is the UV index reading in September in Union Hill?
Average temperature in September
Union Hill, PA
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in September: 53.4°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Union Hill, 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
Union Hill, PA
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Union Hill, PA
- Average humidity in September: 80%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Union Hill, PA
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in September
Union Hill, PA
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is February (9.9 days).
Average snowfall in September
Union Hill, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Union Hill, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.4 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 Hill, 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 18min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in September
Union Hill, PA
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is May (10 days).
Average UV index in September
Union Hill, PA
- Average UV index in September: 4
The month with the highest UV index is 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
Union Hill, PA
- Average cloud cover in September: 40
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in September
Union Hill, PA
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Union Hill, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location
