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
September implies a soft temperature shift, with average high-temperatures reducing from August's warm 73.8°F (23.2°C) to a refreshing 66.6°F (19.2°C). Groveton's temperature drops to an average low of 45.7°F (7.6°C) during the nights of September.Humidity
The average relative humidity in September is 81%.Rainfall
In Groveton, in September, during 12.5 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. In Groveton, during the entire year, the rain falls for 150.5 days and collects up to 27.99" (711mm) of precipitation.Snowfall
June through September are months without snowfall in Groveton.Daylight
The average length of the day in September in Groveton is 12h and 31min.On the first day of the month, sunrise is at 6:09 am and sunset at 7:22 pm. On the last day of September, sunrise is at 6:43 am and sunset at 6:28 pm EDT.
Sunshine
In Groveton, the average sunshine in September is 7.9h.UV index
In September, the average daily maximum UV index in Groveton, New Hampshire, is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Prioritize safety - Recommendations to avert sunburn are shared. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Groveton in September?
What is the average humidity in September in Groveton?
How many days does it rain in September in Groveton?
When it does not snow in Groveton?
Does it snow in Groveton in September?
How many hours of daylight does Groveton have in September?
When are sunrise and sunset in September in Groveton?
How many hours of sunshine does Groveton have in September?
How high is the UV index in September in Groveton?
Average temperature in September
Groveton, NH
- Average high temperature in September: 66.6°F
The warmest month (with the highest average high temperature) is July (75.6°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in September: 45.7°F
The month with the highest average low temperature is July (53.2°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in September
Groveton, NH
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Groveton, NH
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Groveton, NH
- Average humidity in September: 81%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Groveton, NH
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is October (2.95").
The driest month (with the least rainfall) is August (1.97").
Average rainfall days in September
Groveton, NH
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (5 days).
Average snowfall in September
Groveton, NH
- Average snowfall in September: 0"
The month with the highest snowfall is February (13.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Groveton, NH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (21.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Groveton, NH
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The months with the least sunshine are January and February (Average sunshine: 2h and 36min).
Average sunshine days in September
Groveton, NH
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is February (6.3 days).
Average UV index in September
Groveton, 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 and December (UV index 1).
Average cloud cover in September
Groveton, NH
- Average cloud cover in September: 44
The month with the most cloud cover is February (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in September
Groveton, NH
- Average visibility in September: 4mi
The months with the highest visibility are May, June, July and November (5mi).
The months with the lowest visibility are January, February, March, April, August, September, October and December (4mi).
Groveton, New Hampshire, USA
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