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
With September's onset, the weather reveals a slight temperature decrease, transitioning from a pleasant 72.3°F (22.4°C) in August to a comfortable 65.3°F (18.5°C). During September, West Stewartstown records an average temperature of 45.3°F (7.4°C) at night.Humidity
In West Stewartstown, the average relative humidity in September is 81%.Rainfall
In West Stewartstown, in September, during 13.3 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. Throughout the year, there are 154.3 rainfall days, and 30.87" (784mm) of precipitation is accumulated.Snowfall
In West Stewartstown, snow does not fall in June through September.Daylight
In West Stewartstown, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:09 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:27 pm EDT.
Sunshine
In September, the average sunshine is 7.7h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 3 in September interprets into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for West Stewartstown 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?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does West Stewartstown have in September?
How high is the UV index in September?
Average temperature in September
West Stewartstown, NH
- Average high temperature in September: 65.3°F
The warmest month (with the highest average high temperature) is July (74.5°F).
The month with the lowest average high temperature is January (21°F).
- Average low temperature in September: 45.3°F
The month with the highest average low temperature is July (53.4°F).
The coldest month (with the lowest average low temperature) is January (7.3°F).
Average pressure in September
West Stewartstown, NH
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
West Stewartstown, NH
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
West Stewartstown, NH
- Average humidity in September: 81%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
West Stewartstown, NH
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is February (2.01").
Average rainfall days in September
West Stewartstown, NH
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in September
West Stewartstown, NH
- Average snowfall in September: 0"
The month with the highest snowfall is January (12.4").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
West Stewartstown, NH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (21.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
West Stewartstown, NH
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The months with the least sunshine are January and February (Average sunshine: 2h and 6min).
Average sunshine days in September
West Stewartstown, NH
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is February (6.2 days).
Average UV index in September
West Stewartstown, NH
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March and December (UV index 1).
Average cloud cover in September
West Stewartstown, NH
- Average cloud cover in September: 46
The month with the most cloud cover is February (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 43).
Average visibility in September
West Stewartstown, NH
- Average visibility in September: 4mi
The months with the highest visibility are May, June and July (5mi).
The months with the lowest visibility are January, February, March, April, August, September, October, November and December (4mi).
West Stewartstown, New Hampshire, USA
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