September weather forecastNew Boston, NH
September
Weather in September
September, the first month of the autumn in New Boston, is also an agreeable month, with an average temperature fluctuating between 71.8°F (22.1°C) and 52.5°F (11.4°C).Temperature
The advent of September brings a subtle shift in temperature, with the average high moving from a warm 79.3°F (26.3°C) in August to a pleasant 71.8°F (22.1°C). New Boston, during the month of September, experiences an average low-temperature of 52.5°F (11.4°C).Humidity
In September, the average relative humidity is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 11.4 days and typically collects 1.61" (41mm) of precipitation.Snowfall
June through September are months without snowfall in New Boston, New Hampshire.Daylight
The average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:12 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:29 pm EDT.
Sunshine
The average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index in New Boston is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
New Boston, NH
- Average high temperature in September: 71.8°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 (29.7°F).
- Average low temperature in September: 52.5°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in September
New Boston, 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 (29.92"Hg).
Average wind speed in September
New Boston, NH
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
New Boston, NH
- Average humidity in September: 78%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (72%).
Average rainfall in September
New Boston, NH
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is October (3.03").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in September
New Boston, NH
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in September
New Boston, NH
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
New Boston, NH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
New Boston, NH
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
New Boston, NH
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in September
New Boston, NH
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
New Boston, NH
- Average cloud cover in September: 38
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
New Boston, NH
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
