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 ushers in a minor alteration in Waterbury's climate, with the average high-temperature moving from August's warm 75.4°F (24.1°C) to an agreeable 68.4°F (20.2°C). During September, the nighttime temperature averages to a frosty 47.8°F (8.8°C).Humidity
The average relative humidity in September in Waterbury is 80%.Rainfall
September is the month with the least rainfall. Rain falls for 13.2 days and accumulates 1.97" (50mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 30min.On the first day of September, sunrise is at 6:14 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:33 pm EDT.
Sunshine
The average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September in Waterbury is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 3 in September translates into this advice:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
What are September temperatures in Waterbury?
What is the average humidity in September in Waterbury?
What is the driest month in Waterbury?
How much does it rain in Waterbury in September?
When it does not snow in Waterbury?
Does it snow in Waterbury in September?
How many hours of daylight does Waterbury have in September?
When is the sunrise / sunset in September in Waterbury?
How long on average sun shines in September in Waterbury?
What is the UV index reading in September in Waterbury?
Average temperature in September
Waterbury, VT
- Average high temperature in September: 68.4°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in September: 47.8°F
The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in September
Waterbury, 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
Waterbury, VT
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Waterbury, VT
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Waterbury, VT
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is June (3.31").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in September
Waterbury, VT
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is June (19.1 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in September
Waterbury, VT
- Average snowfall in September: 0"
The month with the highest snowfall is February (11.85").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Waterbury, VT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (21.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Waterbury, VT
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).
Average sunshine days in September
Waterbury, VT
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is September (14.3 days).
The month with the least sunshine days is February (4.8 days).
Average UV index in September
Waterbury, VT
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Waterbury, VT
- Average cloud cover in September: 40
The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in September
Waterbury, VT
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March and December (4mi).
Waterbury, Vermont, USA
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