September weather forecastWhittenton, MA
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Whittenton, Massachusetts, with an average temperature fluctuating between 57.7°F (14.3°C) and 72.9°F (22.7°C).Temperature
Whittenton's progression into September involves a gentle drop in the average high-temperature, from a warm 80.2°F (26.8°C) in August to a pleasant 72.9°F (22.7°C). September in Whittenton witnesses an average low-temperature hovering around a mild 57.7°F (14.3°C).Humidity
The months with the highest humidity are June, July and September, with an average relative humidity of 78%.Rainfall
September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.34" (34mm) of precipitation.Snowfall
In Whittenton, snow does not fall in June through October.Daylight
In Whittenton, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:10 am and sunset at 7:17 pm. On the last day of September, in Whittenton, sunrise is at 6:40 am and sunset at 6:27 pm EDT.
Sunshine
In Whittenton, the average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Ensure safety - Recommendations to avert sunburn are presented. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Whittenton, MA
- Average high temperature in September: 72.9°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in September: 57.7°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure in September
Whittenton, MA
- 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 (29.93"Hg).
Average wind speed in September
Whittenton, MA
- Average wind speed in September: 7.2mph
The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in September
Whittenton, MA
- Average humidity in September: 78%
The months with the highest relative humidity are June, July and September (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in September
Whittenton, MA
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is September (1.34").
Average rainfall days in September
Whittenton, MA
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is April (16 days).
The month with the least rainy days is February (8.5 days).
Average snowfall in September
Whittenton, MA
- Average snowfall in September: 0"
The months with the highest snowfall are February and March (3.62").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Whittenton, MA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Whittenton, 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 12min).
- 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
Whittenton, MA
- Average sunshine days in September: 16 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in September
Whittenton, MA
- Average UV index in September: 4
The months with the highest UV index are June, 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
Whittenton, MA
- Average cloud cover in September: 36
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Whittenton, MA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
