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 transition to September results in a modest reduction in average high-temperature, moving from 80.4°F (26.9°C) in August to a still moderately hot 74.5°F (23.6°C). Nellie's September nights cool down to an average low-temperature of 54°F (12.2°C).Humidity
The average relative humidity in September is 78%.Rainfall
September and November are months with the least rain in Nellie, Pennsylvania, when the rain falls for 11.5 days and typically aggregates up to 0.91" (23mm) of rain.Snowfall
In Nellie, snow does not fall in June through September.Daylight
In Nellie, Pennsylvania, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:14 am and sunset at 7:02 pm EDT.
Sunshine
In Nellie, Pennsylvania, the average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September in Nellie is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: An average UV index of 4 in September transforms into this advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Nellie in September?
What is the average humidity in September in Nellie?
What is the driest month in Nellie?
How much does it rain in Nellie in September?
When it does not snow in Nellie?
Does it snow in Nellie in September?
What is the average length of the day in September in Nellie?
What time are sunrise and sunset in September in Nellie?
How long on average sun shines in September in Nellie?
How high is the UV index in September in Nellie?
Average temperature in September
Nellie, PA
- Average high temperature in September: 74.5°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in September: 54°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in September
Nellie, PA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Nellie, PA
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Nellie, PA
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in September
Nellie, PA
- Average rainfall in September: 0.91"
The wettest month (with the highest rainfall) is May (1.97").
The driest months (with the least rainfall) are September and November (0.91").
Average rainfall days in September
Nellie, PA
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in September
Nellie, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Nellie, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Nellie, PA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Nellie, PA
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is January (8.6 days).
Average UV index in September
Nellie, PA
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Nellie, PA
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Nellie, PA
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The month with the lowest visibility is January (4mi).
Nellie, Pennsylvania, USA
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