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's arrival comes with a mild decrease in the average high-temperature, moving subtly from a warm 77°F (25°C) in August to a pleasant 68.9°F (20.5°C). The nights of September anticipate an average low-temperature of 49.1°F (9.5°C).Humidity
The average relative humidity in September is 80%.Rainfall
In September, in New London, the rain falls for 11.8 days. Throughout September, 2.05" (52mm) of precipitation is accumulated. In New London, during the entire year, the rain falls for 146.9 days and collects up to 30.35" (771mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In New London, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:12 am and sunset at 7:22 pm. On the last day of September, in New London, sunrise is at 6:45 am and sunset at 6:30 pm EDT.
Sunshine
In September, the average sunshine in New London is 8h.UV index
In New London, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 3 during September translates into the following directions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in New London?
What is the average humidity in September in New London?
How many days does it rain in September in New London?
When it does not snow in New London?
Does it snow in New London in September?
How many hours of daylight does New London have in September?
When is the sunrise / sunset in September in New London?
How many hours of sunshine does New London have in September?
How high is the UV index in September in New London?
Average temperature in September
New London, NH
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (25.7°F).
- Average low temperature in September: 49.1°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in September
New London, NH
- Average pressure in September: 30.05"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
New London, NH
- Average wind speed in September: 5.2mph
The windiest months (with the highest average wind speed) are January and February (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
New London, NH
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
New London, NH
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is October (3.54").
The driest month (with the least rainfall) is August (1.93").
Average rainfall days in September
New London, NH
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in September
New London, NH
- Average snowfall in September: 0"
The month with the highest snowfall is February (9.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
New London, NH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
New London, NH
- 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: 9h and 0min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in September
New London, NH
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is September (16.6 days).
The months with the least sunshine days are March and April (11.5 days).
Average UV index in September
New London, NH
- 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 February and December (UV index 1).
Average cloud cover in September
New London, NH
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
New London, NH
- Average visibility in September: 4mi
The months with the highest visibility are April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February, March and September (4mi).
New London, New Hampshire, USA
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