Climate and monthly weather forecastWinooski, VT
Climate and monthly weather forecast
The climate of Winooski
Recognized under the Köppen climate classification as Dfb, the city of Winooski, Vermont, experiences a humid continental climate with no dry season and a warm summer. Situated in the northeastern United States, precisely in the state of Vermont, Winooski's geographical location directly influences its prevalent weather conditions.Throughout the year, the city's weather parameters exhibit significant variations. The highest average monthly temperatures vary from 24.6°F (-4.1°C) in January to a peak of 78.1°F (25.6°C) in July, before reducing to 30.4°F (-0.9°C) in December. Similarly, the lowest temperatures experience a similar trend, with January averaging at 12.4°F (-10.9°C), July at 57.6°F (14.2°C), and a reduction to 20.3°F (-6.5°C) by December.
Humidity levels in Winooski range between 75% in May and 87% in February, indicating a rather humid atmosphere all year round. Rainfall varies from month to month, with the lowest average precipitation of 0.87" (22mm) recorded in February and the highest of 2.09" (53mm) in June. From the data, Winooski gets maximum sunshine hours of 10.2 in July and a minimum of 3 in January.
Unique weather patterns present in the city include significant snowfall during winter, particularly from December to February with 3.43" (87mm), 5.16" (131mm), and 4.06" (103mm) respectively. On the other hand, there is no recorded snowfall from June to September.
The best time to visit Winooski
Determining the best time to visit Winooski depends largely on the activities one desires to engage in. For those keen on enjoying warm weather, the months of June to August offer the highest temperatures with averages ranging from 71.6°F (22°C) to 78.1°F (25.6°C). Additionally, these months experience extended daylight hours, reaching up to 15.5 hours in June, making them ideal for outdoor exploration.The worst time to visit Winooski
Unless visitors are enthusiastic about cold weather and snow activities, the period from December to February can be challenging due to cold temperatures and significant snowfall. Temperatures during this period frequently fall below freezing, with average monthly highs varying from 24.6°F (-4.1°C) to 36.1°F (2.3°C) and lows between 12.4°F (-10.9°C) and 21.9°F (-5.6°C).Spring weather in Winooski
Spring in Winooski, observed from March to May, introduces gradually rising temperatures marking the transition from winter. March sees a high of 36.1°F (2.3°C) and low of 21.9°F (-5.6°C), and by May, these increase to highs of 64.9°F (18.3°C) and lows of 45°F (7.2°C). Rainfall during this period is moderate, with an average of 1.14" (29mm) to 1.85" (47mm).Summer weather in Winooski
June marks the onset of summer in Winooski, lasting till August. Temperature highs peak around 78.1°F (25.6°C) in July while the lows remain comfortably above 50°F (10°C) throughout. Months of plentiful sunshine and increased daylight hours up to 15.5 hours characterize summer in Winooski. Rainfall peaks in June at 2.09" (53mm) but decreases to 1.65" (42mm) by July.Autumn weather in Winooski
Autumn, extending from September to November, heralds the onset of cooler temperatures. September experiences a high of 69.1°F (20.6°C) and a low of 49.3°F (9.6°C). By November, these decrease to a high of 41.7°F (5.4°C) and a low of 29.7°F (-1.3°C). Rainfall is fairly consistent with 1.18" (30mm) in September and 1.3" (33mm) in November.Winter weather in Winooski
December ushers in the winter season in Winooski, characterized by chilly temperatures and significant snowfall. December records a high of 30.4°F (-0.9°C) and a low of 20.3°F (-6.5°C). Snowfall in December amounts to 3.43" (87mm) enhancing the winter charm of the city. The short daylight hours, reaching a minimum of 8.9 hours in December, further contribute to the distinct winter ambience.Weather in January
January in Winooski, Vermont, is often cloudy with temperatures somewhat chillier than in other months, producing an average high of 24.6°F (-4.1°C). Snowfall is quite frequent, giving the city a quiet, wintery wonderland feel. Weather in January »Weather in February
In comparison to the cold temperatures of January, though still in the winter season, February offers a tad bit more warmth in Winooski. With minimal shifts in manner, the weather patterns of this month closely resemble those of its predecessor. Weather in February »Weather in March
The dense winter atmosphere begins to give way to early spring in March, with a considerable temperature leap to 36.1°F (2.3°C) as the highest average. More sunshine hours dominate, and with diminishing snowfall, outdoor activities take a more versative angle. Weather in March »Weather in April
April marks a clear departure from the winter cold, ushering in spring's warmth as the high temperature average surges to a balmy 49.8°F (9.9°C). The retreating snowfall paves the way for the spring flora to thrive in the increased daylight hours. Weather in April »Weather in May
In Winooski, May paints an ideal image of spring, with a sizable rise in average high temperatures, peaking at 64.9°F (18.3°C). The surplus daylight allows spring flowers to bloom in glorious color, lending the city a fresh, vibrant feel. Weather in May »Weather in June
June steps in bearing warmer temperatures and more daylight, signifying the start of summer in Winooski, Vermont. The city basks in the summer glory as residents engage in a variety of outdoor activities. The longer days and warmer climate seem to pull people off their couches and outside to soak up the sun's rays. Weather in June »Weather in July
July crowns itself as the warmest month in Winooski with a scorching peak in average temperatures seeing 78.1°F (25.6°C). The ample sunshine and long summer days make it ideal for outdoor recreational activities. Popular summertime happenings, such as cookouts, pool parties and picnics, animate the city. Weather in July »Weather in August
Within just a slight dip in high temperatures to 76.6°F (24.8°C), the August weather in Winooski offers a continuation of July's summertime appeal. While the temperature may taper off slightly, it is hardly noticeable to most residents and does not deter outdoor activities. Weather in August »Weather in September
September in Winooski heralds the arrival of fall with marginally cooler temperatures and shorter daylight hours. The cityscape gradually takes on hues of amber and red as leaves begin to change color. As the temperature drops to an average high of 69.1°F (20.6°C), residents start to pull out their comfy sweaters and warm beverages. Weather in September »Weather in October
October's arrival intensifies the autumnal spirit within Winooski, donning the city with vibrant foliage and cooler temperatures. The crisp morning air and Carolina blue skies are clear signs of the seasonal shift. Farm visits for pumpkin picking become a typical weekend pastime amongst families. Weather in October »Weather in November
November shifts the weather paradigm in Winooski, with the chill in the air becoming more pronounced. Winter preparations go into overdrive as thermal wear becomes the clothing norm. Daylight hours dwindle, hinting at the approaching shortest days of the year. Weather in November »Weather in December
Winter firmly takes hold over Winooski, bringing snowfall, shorter days, and during December, the mercury plunges to the lowest average high temperature at 30.4°F (-0.9°C). Snow-covered landscapes and twinkling holiday decorations are amongst the delightful elements that add to the city's festive charm. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Winooski, VT
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (24.6°F).
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure
Winooski, VT
- Average pressure in January:
30.02"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30.05"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
Winooski, VT
- Average wind speed in January:
7.2mph - Average wind speed in February:
7mph - Average wind speed in March:
7.1mph - Average wind speed in April:
7.5mph - Average wind speed in May:
6.6mph - Average wind speed in June:
5.9mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.5mph - Average wind speed in September:
5.7mph - Average wind speed in October:
6.6mph - Average wind speed in November:
7mph - Average wind speed in December:
7mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity
Winooski, VT
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is May (75%).
Average rainfall
Winooski, VT
- Average rainfall in January:
1.06" - Average rainfall in February:
0.87" - Average rainfall in March:
1.14" - Average rainfall in April:
1.34" - Average rainfall in May:
1.85" - Average rainfall in June:
2.09"
The wettest month (with the highest rainfall) is June (2.09").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days
Winooski, VT
- Average rainfall days in January:
7.4 days - Average rainfall days in February:
8.2 days - Average rainfall days in March:
11.8 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
16.1 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
15.6 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
13.8 days - Average rainfall days in November:
9.6 days - Average rainfall days in December:
10.5 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is January (7.4 days).
Average snowfall
Winooski, VT
- Average snowfall in January:
5.16" - Average snowfall in February:
4.06" - Average snowfall in March:
3.5" - Average snowfall in April:
1.81" - Average snowfall in May:
0.24" - Average snowfall in June:
0"
The month with the highest snowfall is January (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Winooski, VT
- Average snowfall days in January:
19.8 days - Average snowfall days in February:
19.8 days - Average snowfall days in March:
14.4 days - Average snowfall days in April:
5.7 days - Average snowfall days in May:
0.8 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:
1.7 days - Average snowfall days in November:
8.2 days - Average snowfall days in December:
17.3 days
The months with the highest number of snowfall days are January and February (19.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Winooski, 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 30min
- 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 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
3h and 0min - Average sunshine in February:
3h and 0min - Average sunshine in March:
4h and 30min - Average sunshine in April:
7h and 0min - Average sunshine in May:
8h and 30min - Average sunshine in June:
8h and 54min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 54min - Average sunshine in October:
5h and 0min - Average sunshine in November:
4h and 36min - Average sunshine in December:
3h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 3h and 0min).
Average sunshine days
Winooski, VT
- Average sunshine days in January:
9.3 days - Average sunshine days in February:
7.3 days - Average sunshine days in March:
9.3 days - Average sunshine days in April:
9.8 days - Average sunshine days in May:
12.9 days - Average sunshine days in June:
11 days
- Average sunshine days in July:
12.5 days - Average sunshine days in August:
12.6 days - Average sunshine days in September:
16.4 days - Average sunshine days in October:
13.7 days - Average sunshine days in November:
13.9 days - Average sunshine days in December:
9.3 days
The month with the most sunshine days is September (16.4 days).
The month with the least sunshine days is February (7.3 days).
Average UV index
Winooski, VT
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Winooski, VT
The month with the most cloud cover is February (Cloud cover 70).
The months with the least cloud cover are July, August and September (Cloud cover 35).
Average visibility
Winooski, VT
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).





