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
In South Walpole, the average high-temperature in September gently drops from a moderately hot 80.8°F (27.1°C) in August to an agreeable 73°F (22.8°C). During September, South Walpole's temperature falls to a steady low-temperature average of 55.9°F (13.3°C).Humidity
February, September and October, with an average relative humidity of 78%, are the most humid months in South Walpole.Rainfall
September is the month with the least rainfall. Rain falls for 11.4 days and accumulates 1.42" (36mm) of precipitation.Snowfall
June through September are months without snowfall in South Walpole.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September, sunrise is at 6:11 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:27 pm EDT.
Sunshine
In September, the average sunshine is 8.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: In September, a regular UV index of 4 translates into these guidelines:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Frequently asked questions
What is the temperature in September in South Walpole?
What is the most humid month in South Walpole?
What is the average humidity in September in South Walpole?
What is the driest month in South Walpole?
How many days does it rain in September in South Walpole?
When it does not snow in South Walpole?
Does it snow in South Walpole in September?
What is the average length of the day in September in South Walpole?
When are sunrise and sunset in September in South Walpole?
How many hours of sunshine does South Walpole have in September?
How high is the UV index in September in South Walpole?
Average temperature in September
South Walpole, MA
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34.2°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in September
South Walpole, 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
South Walpole, MA
- Average wind speed in September: 6.4mph
The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in September
South Walpole, MA
- Average humidity in September: 78%
The months with the highest relative humidity are February, September and October (78%).
The month with the lowest relative humidity is April (71%).
Average rainfall in September
South Walpole, MA
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in September
South Walpole, MA
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
South Walpole, MA
- Average snowfall in September: 0"
The month with the highest snowfall is March (4.25").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
South Walpole, MA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
South Walpole, MA
- Average daylight in September: 12h and 3min
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 2min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
South Walpole, MA
- Average sunshine days in September: 16 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (12.6 days).
Average UV index in September
South Walpole, 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
South Walpole, MA
- 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 35).
Average visibility in September
South Walpole, MA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, October, November and December (6mi).
The months with the lowest visibility are June, July, August and September (5mi).
South Walpole, Massachusetts, USA
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