Climate and monthly weather forecastWilliamsville, VT
Climate and monthly weather forecast
Weather in January
January, the same as December, in Williamsville, Vermont, is a freezing cold winter month, with temperature in the range of an average high of 27.9°F (-2.3°C) and an average low of 15.1°F (-9.4°C). January is the coldest month, with the temperature often reaching an average high of 27.9°F (-2.3°C) and an average low of 15.1°F (-9.4°C). Weather in January »Weather in February
February, the last month of the winter in Williamsville, is another freezing cold month, with an average temperature ranging between max 30.6°F (-0.8°C) and min 16.5°F (-8.6°C). With February's arrival, Williamsville notes an average high-temperature of a still freezing cold 30.6°F (-0.8°C), closely following the trend of the preceding month. Weather in February »Weather in March
The first month of the spring, March, is an icy month in Williamsville, Vermont, with an average temperature ranging between max 39.2°F (4°C) and min 24.3°F (-4.3°C). Williamsville's weather in March shows a minor rise in the average high-temperature, moving slightly up from February's freezing cold 30.6°F (-0.8°C) to an icy 39.2°F (4°C). Weather in March »Weather in April
April in Williamsville, Vermont, is a cool spring month, with an average temperature varying between 35.1°F (1.7°C) and 52.5°F (11.4°C). As April sets, the average high-temperature shows an increase, moving up from an icy 39.2°F (4°C) in March to a cool 52.5°F (11.4°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Williamsville, Vermont, with temperature in the range of an average low of 45.5°F (7.5°C) and an average high of 65.8°F (18.8°C). As May arrives, Williamsville's weather shows an increase in high-temperatures, moving from April's cool 52.5°F (11.4°C) to an enjoyable 65.8°F (18.8°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Williamsville, Vermont, with temperature in the range of an average low of 52.3°F (11.3°C) and an average high of 73.4°F (23°C). June's arrival coincides with a marginal rise in the average high-temperature, moving from May's comfortable 65.8°F (18.8°C) to a warm 73.4°F (23°C). Weather in June »Weather in July
July, like June, in Williamsville, Vermont, is a moderately hot summer month, with an average temperature fluctuating between 79.7°F (26.5°C) and 58.8°F (14.9°C). July, noted for its average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 58.8°F (14.9°C), is considered the warmest month. Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Williamsville, Vermont, with temperature in the range of an average high of 77.9°F (25.5°C) and an average low of 56.8°F (13.8°C). The shift into August uncovers an average high-temperature of a still moderately hot 77.9°F (25.5°C), subtly different from the previous month. Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Williamsville, Vermont, with an average temperature varying between 50.9°F (10.5°C) and 70.2°F (21.2°C). With the onset of September, Williamsville's climate undergoes a slight change as the average high-temperature moves from a warm 77.9°F (25.5°C) in August to an agreeable 70.2°F (21.2°C). Weather in September »Weather in October
October, the same as September, in Williamsville, Vermont, is another refreshing autumn month, with an average temperature ranging between max 56.8°F (13.8°C) and min 41.7°F (5.4°C). Williamsville's progression into October includes a drop in the average high-temperature, from an agreeable 70.2°F (21.2°C) in September to a mild 56.8°F (13.8°C). Weather in October »Weather in November
November, the last month of the autumn in Williamsville, is also a frosty month, with an average temperature fluctuating between 44.4°F (6.9°C) and 31.1°F (-0.5°C). The start of November comes with a reduction in the average high-temperature, receding from a mild 56.8°F (13.8°C) in October to a chilly 44.4°F (6.9°C). Weather in November »Weather in December
December, the first month of the winter in Williamsville, is still a cold month, with an average temperature varying between 22.6°F (-5.2°C) and 33.4°F (0.8°C). The average high-temperature decreases in December, shifting from a frosty 44.4°F (6.9°C) in November to a cold 33.4°F (0.8°C). Weather in December »Updated: Aug 22, 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
Williamsville reaches its average lowest temperatures in January, measuring 27.9°F (-2.3°C) at the peak and 15.1°F (-9.4°C) at the lowest.
Throughout the year, there are 91.5 rainfall days, and 7.8" (198mm) of precipitation is accumulated.
January through April, October through December are months with snowfall.
January is the month with the most snowfall. Snow falls for 6.9 days and accumulates 1.81" (46mm) of snow.
In Williamsville, during the entire year, snow falls for 28.8 days and aggregates up to 7.17" (182mm) of snow.
With an average relative humidity of 85%, February is the most humid month.
With an average of 4.4h of sunshine, February has the least sunshine of the year.
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.
April is the least humid month, with an average relative humidity of 74%.
May through September are months without snowfall.
May through August, with an average maximum UV index of 5, are months with the highest UV index.
The month with the longest days in Williamsville is June, with an average of 15h and 18min of daylight.
Williamsville experiences its average highest temperatures in July, reaching a peak of 79.7°F (26.5°C) and a minimum of 58.8°F (14.9°C).
With an average of 10.3h of sunshine, August has the most sunshine of the year in Williamsville.
September is the month with the least rainfall. Rain falls for 6.8 days and accumulates 0.43" (11mm) of precipitation.
November is the month with the most rainfall. Rain falls for 6 days and accumulates 0.87" (22mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 6min of daylight.
With an average maximum UV index of 1, December is the month with the lowest UV index.
Average temperature
Williamsville, VT
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (27.9°F).
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure
Williamsville, VT
- Average pressure in January:
30.02"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Williamsville, VT
- Average wind speed in January:
7.8mph - Average wind speed in February:
7.8mph - Average wind speed in March:
7.8mph - Average wind speed in April:
7.6mph - Average wind speed in May:
6.3mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.1mph - Average wind speed in September:
5.3mph - Average wind speed in October:
6.5mph - Average wind speed in November:
6.9mph - Average wind speed in December:
7.4mph
The windiest months (with the highest average wind speed) are January, February and March (7.8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity
Williamsville, VT
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (74%).
Average rainfall
Williamsville, VT
- Average rainfall in January:
0.59" - Average rainfall in February:
0.59" - Average rainfall in March:
0.51" - Average rainfall in April:
0.67" - Average rainfall in May:
0.71" - Average rainfall in June:
0.63"
- Average rainfall in July:
0.79" - Average rainfall in August:
0.51" - Average rainfall in September:
0.43" - Average rainfall in October:
0.75" - Average rainfall in November:
0.87" - Average rainfall in December:
0.75"
The wettest month (with the highest rainfall) is November (0.87").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days
Williamsville, VT
- Average rainfall days in January:
4.3 days - Average rainfall days in February:
4.3 days - Average rainfall days in March:
8.5 days - Average rainfall days in April:
9.4 days - Average rainfall days in May:
10 days - Average rainfall days in June:
9.7 days
- Average rainfall days in July:
9.8 days - Average rainfall days in August:
8.4 days - Average rainfall days in September:
6.8 days - Average rainfall days in October:
7.7 days - Average rainfall days in November:
6 days - Average rainfall days in December:
6.6 days
The month with the highest number of rainy days is May (10 days).
The months with the least rainy days are January and February (4.3 days).
Average snowfall
Williamsville, VT
The month with the highest snowfall is January (1.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Williamsville, VT
- Average snowfall days in January:
6.9 days - Average snowfall days in February:
7.8 days - Average snowfall days in March:
5.5 days - Average snowfall days in April:
1.3 days - Average snowfall days in May:
0.1 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:
0.5 days - Average snowfall days in November:
1.9 days - Average snowfall days in December:
4.8 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Williamsville, VT
- Average daylight in January:
9h and 24min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
4h and 54min - Average sunshine in February:
4h and 24min - Average sunshine in March:
6h and 0min - Average sunshine in April:
8h and 12min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 24min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 18min - Average sunshine in September:
8h and 36min - Average sunshine in October:
5h and 48min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 54min
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 24min).
Average sunshine days
Williamsville, VT
- Average sunshine days in January:
21.9 days - Average sunshine days in February:
18.3 days - Average sunshine days in March:
20.2 days - Average sunshine days in April:
18.2 days - Average sunshine days in May:
18.5 days - Average sunshine days in June:
18.3 days
- Average sunshine days in July:
17.6 days - Average sunshine days in August:
19.6 days - Average sunshine days in September:
20.5 days - Average sunshine days in October:
20.3 days - Average sunshine days in November:
21.4 days - Average sunshine days in December:
21.2 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is July (17.6 days).
Average UV index
Williamsville, VT
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
Williamsville, VT
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility
Williamsville, VT
The months with the highest visibility are April, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and October (5mi).
