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
September implies a soft temperature shift, with average high-temperatures reducing from August's moderately hot 76.1°F (24.5°C) to a pleasant 68.4°F (20.2°C). Thetford Center experiences an average low-temperature of 48.2°F (9°C) in month of September.Humidity
The average relative humidity in September is 80%.Rainfall
September is the month with the least rainfall. Rain falls for 12.2 days and accumulates 1.89" (48mm) of precipitation.Snowfall
In Thetford Center, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 29min.On the first day of September, sunrise is at 6:13 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:31 pm EDT.
Sunshine
In Thetford Center, the average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: A maximum daily UV index of 3 during September morphs into the following directions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Thetford Center have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Thetford Center have in September?
What is the UV index reading in September?
Average temperature in September
Thetford Center, VT
- Average high temperature in September: 68.4°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (23.9°F).
- Average low temperature in September: 48.2°F
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in September
Thetford Center, VT
- 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 (29.91"Hg).
Average wind speed in September
Thetford Center, VT
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Thetford Center, VT
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in September
Thetford Center, VT
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is October (3.11").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in September
Thetford Center, VT
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (7.2 days).
Average snowfall in September
Thetford Center, VT
- Average snowfall in September: 0"
The month with the highest snowfall is February (12.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Thetford Center, VT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Thetford Center, VT
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in September
Thetford Center, VT
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in September
Thetford Center, VT
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Thetford Center, VT
- Average cloud cover in September: 41
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Thetford Center, VT
- Average visibility in September: 4mi
The months with the highest visibility are April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February, March and September (4mi).
Thetford Center, Vermont, USA
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