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
September indicates a minor shift in the average high-temperature, from August's warm 80.8°F (27.1°C) to a still moderately hot 73.9°F (23.3°C). During September, the average low-temperature is recorded at a cool 54.5°F (12.5°C).Humidity
The average relative humidity in September is 79%.Rainfall
In Renfrew, in September, it is raining for 14 days, with typically 2.05" (52mm) of accumulated precipitation. Throughout the year, there are 162.5 rainfall days, and 26.02" (661mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Renfrew, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:47 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:03 pm EDT.
Sunshine
In September, the average sunshine is 8.2h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: A daily high UV index of 4 in September leads to these guidelines:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Renfrew have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Renfrew have in September?
What is the UV index intensity in September?
Average temperature in September
Renfrew, PA
- Average high temperature in September: 73.9°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Renfrew, PA
- Average pressure in September: 30.05"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
Renfrew, PA
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in September
Renfrew, PA
- Average humidity in September: 79%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in September
Renfrew, PA
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is November (1.61").
Average rainfall days in September
Renfrew, PA
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in September
Renfrew, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Renfrew, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Renfrew, 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 1min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in September
Renfrew, PA
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is February (9 days).
Average UV index in September
Renfrew, PA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Renfrew, PA
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Renfrew, PA
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Renfrew, Pennsylvania, USA
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