Climate and monthly weather forecastWilliamstown, VT
Climate and monthly weather forecast
Weather in January
January, the same as December, in Williamstown, Vermont, is a freezing cold winter month, with an average temperature ranging between min 10.8°F (-11.8°C) and max 23.2°F (-4.9°C). Williamstown's temperature records reveal January as the coldest month, marked by average highs of 23.2°F (-4.9°C) and lows of 10.8°F (-11.8°C). Weather in January »Weather in February
February, the last month of the winter in Williamstown, is also a subzero cold month, with an average temperature fluctuating between 25.9°F (-3.4°C) and 11.7°F (-11.3°C). The arrival of February marks a slight shift to an average high-temperature of a still subzero cold 25.9°F (-3.4°C) from January's 23.2°F (-4.9°C). Weather in February »Weather in March
March, the first month of the spring in Williamstown, is a cold month, with an average temperature varying between 34.3°F (1.3°C) and 19.9°F (-6.7°C). March's arrival signals a subtle increase in average high-temperatures, moving from February's subzero cold 25.9°F (-3.4°C) to an icy 34.3°F (1.3°C). Weather in March »Weather in April
April is a chilly spring month in Williamstown, Vermont, with an average temperature ranging between min 31.5°F (-0.3°C) and max 48.2°F (9°C). Williamstown's transition into April is marked by a rise in the average high-temperature, advancing from a wintry 34.3°F (1.3°C) in March to a chilly 48.2°F (9°C). Weather in April »Weather in May
The last month of the spring, May, is an enjoyable month in Williamstown, Vermont, with an average temperature varying between 43.2°F (6.2°C) and 63.7°F (17.6°C). As May begins, there is a noticeable increase in the average high-temperature, soaring from a frosty 48.2°F (9°C) in April to an enjoyable 63.7°F (17.6°C). Weather in May »Weather in June
The first month of the summer, June, is a pleasant month in Williamstown, Vermont, with an average temperature fluctuating between 70.3°F (21.3°C) and 49.6°F (9.8°C). Williamstown's weather in June shows a minor rise in the average high-temperature, moving slightly up from May's enjoyable 63.7°F (17.6°C) to an agreeable 70.3°F (21.3°C). Weather in June »Weather in July
July in Williamstown, Vermont, is a warm summer month, with temperature in the range of an average high of 76.8°F (24.9°C) and an average low of 55.2°F (12.9°C). July, with its high-temperature average of 76.8°F (24.9°C) and a low-temperature average of 55.2°F (12.9°C), is the warmest month. Weather in July »Weather in August
August, the last month of the summer in Williamstown, is another warm month, with an average temperature varying between 53.6°F (12°C) and 74.8°F (23.8°C). August's advent presents an average high-temperature of a still moderately hot 74.8°F (23.8°C), indicating a slight variation from the conditions of the previous month. Weather in August »Weather in September
The first month of the autumn, September, is still a refreshing month in Williamstown, Vermont, with an average temperature fluctuating between 48°F (8.9°C) and 67.6°F (19.8°C). The arrival of September signals a subtle shift in temperature, down from a moderately hot 74.8°F (23.8°C) in August to a refreshing 67.6°F (19.8°C). Weather in September »Weather in October
October, like September, in Williamstown, Vermont, is a cool autumn month, with an average temperature fluctuating between 53.4°F (11.9°C) and 39.2°F (4°C). In October, the meteorological conditions alter, with the average high-temperature shifting from a refreshing 67.6°F (19.8°C) in September to a cool 53.4°F (11.9°C). Weather in October »Weather in November
November, the last month of the autumn in Williamstown, is another cold month, with an average temperature fluctuating between 40.1°F (4.5°C) and 27.5°F (-2.5°C). November is characterized by a reduction in the average high-temperature, from a cool 53.4°F (11.9°C) in October to a cold 40.1°F (4.5°C). Weather in November »Weather in December
December, the first month of the winter in Williamstown, is also a subzero cold month, with an average temperature fluctuating between 28.6°F (-1.9°C) and 19°F (-7.2°C). The average high-temperature drops in December, from November's icy 40.1°F (4.5°C) to a subzero cold 28.6°F (-1.9°C). Weather in December »Updated: Jun 5, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the coldest month, with the temperature often reaching an average high of 23.2°F (-4.9°C) and an average low of 10.8°F (-11.8°C).
The months with the highest humidity are January and February, with an average relative humidity of 89%.
Throughout the year, there are 166.6 rainfall days, and 32.01" (813mm) of precipitation is accumulated.
January through May, October through December are months with snowfall.
In Williamstown, during the entire year, snow falls for 107.7 days and aggregates up to 58.82" (1494mm) of snow.
The months with the least sunshine are January and February, with an average of 2.7h of sunshine.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1.
February is the month with the most snowfall in Williamstown. Snow falls for 22.1 days and accumulates 13.31" (338mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
With an average relative humidity of 76%, May is the least humid month.
The month with the most rainfall is June, when the rain falls for 18.8 days and typically aggregates up to 3.43" (87mm) of precipitation.
In Williamstown, Vermont, snow does not fall in June through September.
With an average of 15h and 24min of daylight, June has the longest days of the year.
The months with the highest UV index are June and July, with an average maximum UV index of 5.
July stands out as Williamstown's warmest month, with an average high-temperature of 76.8°F (24.9°C) and a low-temperature of 55.2°F (12.9°C).
July has the most sunshine of the year, with an average of 9.8h of sunshine.
The month with the least rainfall is September, when the rain falls for 13.1 days and typically collects 2.09" (53mm) of precipitation.
The month with the shortest days in Williamstown is December, with an average of 8h and 54min of daylight.
Average temperature
Williamstown, VT
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (23.2°F).
The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure
Williamstown, VT
- Average pressure in January:
30.02"Hg - Average pressure in February:
30"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.04"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
Williamstown, VT
- Average wind speed in January:
7mph - Average wind speed in February:
6.8mph - Average wind speed in March:
7mph - Average wind speed in April:
7.3mph - Average wind speed in May:
6.4mph - Average wind speed in June:
5.6mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5mph - Average wind speed in September:
5.3mph - Average wind speed in October:
6.1mph - Average wind speed in November:
6.5mph - Average wind speed in December:
6.6mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity
Williamstown, VT
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (76%).
Average rainfall
Williamstown, VT
- Average rainfall in January:
2.2" - Average rainfall in February:
2.2" - Average rainfall in March:
2.4" - Average rainfall in April:
2.91" - Average rainfall in May:
2.99" - Average rainfall in June:
3.43"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is September (2.09").
Average rainfall days
Williamstown, VT
- Average rainfall days in January:
6.8 days - Average rainfall days in February:
7.5 days - Average rainfall days in March:
11.4 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
18.8 days
- Average rainfall days in July:
18.5 days - Average rainfall days in August:
18.6 days - Average rainfall days in September:
13.1 days - Average rainfall days in October:
15.9 days - Average rainfall days in November:
11.5 days - Average rainfall days in December:
10.4 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is January (6.8 days).
Average snowfall
Williamstown, VT
- Average snowfall in January:
11.57" - Average snowfall in February:
13.31" - Average snowfall in March:
9.45" - Average snowfall in April:
5.16" - Average snowfall in May:
1.14" - Average snowfall in June:
0"
The month with the highest snowfall is February (13.31").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Williamstown, VT
- Average snowfall days in January:
22.3 days - Average snowfall days in February:
22.1 days - Average snowfall days in March:
18.5 days - Average snowfall days in April:
8.7 days - Average snowfall days in May:
1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
2.8 days - Average snowfall days in November:
11.3 days - Average snowfall days in December:
21 days
The month with the highest number of snowfall days is January (22.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Williamstown, VT
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 24min
- Average daylight in July:
15h and 6min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 36min - Average daylight in December:
8h and 54min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
2h and 42min - Average sunshine in February:
2h and 42min - Average sunshine in March:
4h and 0min - Average sunshine in April:
6h and 24min - Average sunshine in May:
7h and 42min - Average sunshine in June:
8h and 18min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
9h and 42min - Average sunshine in September:
8h and 0min - Average sunshine in October:
4h and 42min - Average sunshine in November:
4h and 18min - Average sunshine in December:
3h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January and February (Average sunshine: 2h and 42min).
Average sunshine days
Williamstown, VT
- Average sunshine days in January:
7.5 days - Average sunshine days in February:
5.5 days - Average sunshine days in March:
7.3 days - Average sunshine days in April:
8.6 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
9.2 days
- Average sunshine days in July:
10.5 days - Average sunshine days in August:
10.3 days - Average sunshine days in September:
14.6 days - Average sunshine days in October:
11.5 days - Average sunshine days in November:
11.8 days - Average sunshine days in December:
7.6 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is February (5.5 days).
Average UV index
Williamstown, VT
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Williamstown, VT
The months with the most cloud cover are January and February (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility
Williamstown, VT
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).
