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 suggests a slight decrease in the average high-temperature, moving from a moderately hot 79.7°F (26.5°C) in August to a still warm 73.6°F (23.1°C). The low-temperature averages to a cool 53.2°F (11.8°C) during the nights of September.Humidity
In September, the average relative humidity is 80%.Rainfall
In North Washington, in September, during 12.3 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. In North Washington, during the entire year, the rain falls for 140.7 days and collects up to 15.43" (392mm) of precipitation.Snowfall
In North Washington, snow does not fall in June through October.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September, sunrise is at 6:46 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:02 pm EDT.
Sunshine
In North Washington, the average sunshine in September is 8h.UV index
In North Washington, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: A maximum high UV index of 3 in September translates into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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?
How many hours of daylight does North Washington have in September?
What time are sunrise and sunset in September in North Washington?
How many hours of sunshine does North Washington have in September?
How high is the UV index in September?
Average temperature in September
North Washington, PA
- Average high temperature in September: 73.6°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in September: 53.2°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in September
North Washington, 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
North Washington, PA
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
North Washington, PA
- Average humidity in September: 80%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April, June, July and August (78%).
Average rainfall in September
North Washington, PA
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is November (0.87").
Average rainfall days in September
North Washington, PA
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in September
North Washington, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.93").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
North Washington, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
North Washington, 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 0min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in September
North Washington, PA
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is December (17.1 days).
The month with the least sunshine days is July (12.2 days).
Average UV index in September
North Washington, 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
North Washington, PA
- Average cloud cover in September: 43
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
North Washington, 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).
North Washington, Pennsylvania, USA
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