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
As September commences, the average high-temperature subtly reduces, transitioning from a warm 75.6°F (24.2°C) in August to an agreeable 68.9°F (20.5°C). Harrisville, during September nights, observes an average temperature of 51.1°F (10.6°C).Humidity
In Harrisville, the average relative humidity in September is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.5 days and typically collects 1.73" (44mm) of precipitation.Snowfall
In Harrisville, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 6:25 am and sunset at 7:36 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:43 pm EDT.
Sunshine
In September, the average sunshine is 8.9h.UV index
In Harrisville, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 3 in September interprets into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Harrisville in September?
What is the average humidity in September?
What is the driest month in Harrisville?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Harrisville have in September?
What is the UV index reading in September?
Average temperature in September
Harrisville, NY
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (24.4°F).
- Average low temperature in September: 51.1°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 (11.5°F).
Average pressure in September
Harrisville, NY
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Harrisville, NY
- Average wind speed in September: 6.8mph
The windiest months (with the highest average wind speed) are January, February and April (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in September
Harrisville, NY
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Harrisville, NY
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is October (3.15").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in September
Harrisville, NY
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in September
Harrisville, NY
- Average snowfall in September: 0"
The month with the highest snowfall is January (9.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Harrisville, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (20.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Harrisville, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).
Average sunshine days in September
Harrisville, NY
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is September (14.2 days).
The month with the least sunshine days is February (6.5 days).
Average UV index in September
Harrisville, NY
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Harrisville, NY
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 73).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in September
Harrisville, NY
- Average visibility in September: 6mi
The months with the highest visibility are April, May, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Harrisville, New York, USA
Weather forecast for your location
2. Allow the app to use your location