September weather forecastNew Salem, MA
September
Weather in September
September, the first month of the autumn in New Salem, is also an agreeable month, with an average temperature varying between 71.2°F (21.8°C) and 52.2°F (11.2°C).Temperature
September sees a slight reduction in average high-temperature, with a shift from a warm 78.4°F (25.8°C) in August to an agreeable 71.2°F (21.8°C). September's nights observe an average temperature of 52.2°F (11.2°C).Humidity
The average relative humidity in September is 79%.Rainfall
September is the month with the least rainfall in New Salem. Rain falls for 11.9 days and accumulates 1.77" (45mm) of precipitation.Snowfall
In New Salem, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:15 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:32 pm EDT.
Sunshine
The average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 4 during September translates into the following guidance:
Take precautions - Protection against sun damage is advised. To protect against the Sun's most potent rays, avoid direct exposure around midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
New Salem, MA
- Average high temperature in September: 71.2°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in September: 52.2°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in September
New Salem, MA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
New Salem, MA
- Average wind speed in September: 5.6mph
The windiest months (with the highest average wind speed) are January, February and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
New Salem, MA
- Average humidity in September: 79%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
New Salem, MA
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is October (2.8").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in September
New Salem, MA
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in September
New Salem, MA
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
New Salem, MA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (10.5 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 Salem, MA
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
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 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
New Salem, MA
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is June (13 days).
Average UV index in September
New Salem, MA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
New Salem, MA
- Average cloud cover in September: 39
The months with the most cloud cover are February and March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
New Salem, MA
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
