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 September, the meteorological conditions change slightly, with the average high-temperature moving from a moderately hot 78.4°F (25.8°C) in August to a pleasant 71.4°F (21.9°C). In Charlton Depot, an average low-temperature of 53.4°F (11.9°C) is recorded during September nights.Humidity
The average relative humidity in September is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 13 days and typically collects 1.81" (46mm) of precipitation.Snowfall
In Charlton Depot, Massachusetts, snow does not fall in June through September.Daylight
In September, the average length of the day in Charlton Depot is 12h and 28min.On the first day of the month, sunrise is at 6:14 am and sunset at 7:21 pm. On the last day of September, in Charlton Depot, sunrise is at 6:44 am and sunset at 6:30 pm EDT.
Sunshine
In September, the average sunshine in Charlton Depot is 7.9h.UV index
In Charlton Depot, Massachusetts, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What are the temperatures in Charlton Depot in September?
What is the average humidity in September in Charlton Depot?
What is the driest month in Charlton Depot?
How much does it rain in Charlton Depot in September?
When it does not snow in Charlton Depot?
Does it snow in Charlton Depot in September?
How many hours of daylight does Charlton Depot have in September?
When are sunrise and sunset in September in Charlton Depot?
How long on average sun shines in September in Charlton Depot?
How high is the UV index in September in Charlton Depot?
Average temperature in September
Charlton Depot, MA
- Average high temperature in September: 71.4°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.9°F).
- Average low temperature in September: 53.4°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in September
Charlton Depot, MA
- Average pressure in September: 30.06"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
Charlton Depot, MA
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Charlton Depot, MA
- Average humidity in September: 79%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Charlton Depot, MA
- Average rainfall in September: 1.81"
The wettest months (with the highest rainfall) are October and November (2.76").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in September
Charlton Depot, MA
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in September
Charlton Depot, MA
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Charlton Depot, MA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Charlton Depot, 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: 7h and 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in September
Charlton Depot, MA
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in September
Charlton Depot, MA
- Average UV index in September: 4
The months with the highest UV index are June and 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
Charlton Depot, MA
- Average cloud cover in September: 43
The month with the most cloud cover is March (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Charlton Depot, MA
- Average visibility in September: 5mi
The months with the highest visibility are April and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and November (5mi).
Charlton Depot, Massachusetts, USA
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