September weather forecastGreeley, PA
September
Weather in September
September, the first month of the autumn in Greeley, is still a pleasant month, with an average temperature fluctuating between 51.4°F (10.8°C) and 71.8°F (22.1°C).Temperature
The start of September signals a gentle decrease in the average high-temperature, transitioning from a moderately hot 78.4°F (25.8°C) in August to an agreeable 71.8°F (22.1°C). Greeley records an average nighttime low-temperature of 51.4°F (10.8°C) throughout September.Humidity
In Greeley, the average relative humidity in September is 80%.Rainfall
The month with the least rainfall is September, when the rain falls for 10.3 days and typically collects 1.57" (40mm) of precipitation.Snowfall
In Greeley, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September, sunrise is at 6:26 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:43 pm EDT.
Sunshine
In Greeley, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Be vigilant - Preventing sunburn is recommended. Direct Sun exposure should be minimized especially during midday when radiation is most intense. 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
Greeley, PA
- Average high temperature in September: 71.8°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in September: 51.4°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in September
Greeley, 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
Greeley, PA
- Average wind speed in September: 5.7mph
The windiest months (with the highest average wind speed) are January and February (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Greeley, PA
- Average humidity in September: 80%
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is July (77%).
Average rainfall in September
Greeley, PA
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in September
Greeley, PA
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in September
Greeley, PA
- Average snowfall in September: 0"
The month with the highest snowfall is December (5.35").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Greeley, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Greeley, PA
- Average daylight in September: 12h and 30min
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 36min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in September
Greeley, PA
- Average sunshine days in September: 18 days
The month with the most sunshine days is September (18 days).
The month with the least sunshine days is April (12.1 days).
Average UV index in September
Greeley, 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
Greeley, PA
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in September
Greeley, 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).
