Climate and monthly weather forecastHartford, VT
Climate and monthly weather forecast
The climate of Hartford
Positioned squarely within a Dfb climate zone, Hartford, Vermont manifests a Humid Continental climate with no dry season and warm summers according to the Köppen climate classification. This unfurls a broad wave of climate diversity within the region with cold, snowy winters and warm, occasionally hot, summers and fleeting spring and autumn seasons.Commencing in January, averages from 12.4°F (-10.9°C) to 25.2°F (-3.8°C), and temperatures slowly rise reaching 78.1°F (25.6°C) by July, then recede gradually, culminating to 30.6°F (-0.8°C) in December. An unmistakable decline in humidity is noted from 86% in January, down to 75% in May and June. From July to December, humidity levels fluctuate moderately between 78% and 83%.
Annual average rainfall hovers around 2.68" (68mm) during the year, peaking at 2.99" (76mm) in October. With respect to the snowfall, the crest of the wave is in February with 10.47" (266mm), then plummets straight away to a negligible 0.31" (8mm) by May remaining practically absent until the end of October. Wind speeds tend to reduce marginally as the year progresses from an average of 7.2mph (11.6km/h) in January to 4.8mph (7.7km/h) in August then ascend to reach 6.8mph (10.9km/h) in December.
The UV index seldom increases beyond 2, except from April to September, where the index leaps to levels 3 and 5 before regrouping to 2 from October onwards. To add to the descriptive tapestry of the climate, this geographical position experiences a varying duration of sunshine from 3.6 hours per day in February peaking at 10 hours in August and then descending to 4 hours by December. An interesting periodic pattern of daylight hours is observed, commencing with a low of 9.4 hours in January, reaching a zenith of 15.4 hours by June and then regressing to 9 hours by the year end.
The Best Time to Visit Hartford
Planning when to visit Hartford hinges largely on interest and preference, given the distinct change in seasons. For avid ski enthusiasts, the winter months from December to February serve as the best period to enjoy the snowfall that ranges from 6.46" (164mm) to 10.47" (266mm). For those inclined towards temperate weather and longer daylight hours, the summer months of June to August offer mild temperatures between 71.8°F (22.1°C) and 78.1°F (25.6°C), prolonged daylight hours up to 15.4 hours, and longest sunshine durations from 8.7 hours to 10 hours.The Worst Time to Visit Hartford
Rainfall conditions might render certain months less than ideal for a visit. October witnesses the highest rainfall amounts at 2.99" (76mm), coupled with an increase in the number of rainfall days that might hinder outdoor activities. The month of April, despite having moderate rainfall of 2.68" (68mm), experiences the maximum number of rainfall days averaging at 16.6. Hence, for travelers who prefer avoiding excessive precipitation, these months might not be the most suitable for a visit.Spring Weather in Hartford
Spring season in Hartford extends from March to May, with temperatures rising between 36.1°F (2.3°C) and 64.9°F (18.3°C) over these months. Rainfall averages move between 2.05" (52mm) and 2.32" (59mm). Daylight hours incrementally lengthen from 12 hours to approximately 14.7 hours, while sunshine duration expands from 5 hours in March to 8.2 hours by May.Summer Weather in Hartford
Hartford's summer, extending from June to August, manifests warmer conditions with temperatures fluctuating from 71.8°F (22.1°C) to 78.1°F (25.6°C). Rainfall quantities are variable, commencing at 2.8" (71mm) in June, easing to 2.68" (68mm) in July and tapering to 2.2" (56mm) in August. The region basks in extended daylight hours varying between 15.4 and 13.9 hours across these months.Autumn Weather in Hartford
Autumn in Hartford falls in September through November, with temperatures decreasing from 68.7°F (20.4°C) to 42.1°F (5.6°C). Rainfall averages dwindle from 1.85" (47mm) in September to 2.17" (55mm) by November. Daylight hours contract from 12.5 hours in September to 9.7 hours in November while sunshine hours shrink from 8.3 hours in September to 4.9 hours by November.Winter Weather in Hartford
Winter months in Hartford, expanses from December through February, with temperatures ranging from 12.4°F (-10.9°C) to 27.9°F (-2.3°C). Snowfall soars between December and February, from 6.46" (164mm) to 10.47" (266mm). On the contrary, daylight hours contract and hit the lowest point of 9 hours in December, with sunshine hours dwindling down to 4 hours from December to February.Weather in January
Hartford, Vermont greets the new year with chilling temperatures and substantial snowfall. The weather leans towards frigid conditions, with average high and low temperatures of 25.2°F (-3.8°C) and 12.4°F (-10.9°C) respectively. Weather in January »Weather in February
February in Hartford continues the freezing trend of January, with a slight rise in temperature. This subtle increase in warmth does not shift the overall balmy atmosphere, as it's still quite chilly. This period marks another significant snowfall window, with February yielding an average snowfall slightly above 10.4" (264mm). Weather in February »Weather in March
With the arrival of spring in March, Hartford witnesses a gradual departure from the icy grip of winter. The month experiences a significant jump in the average high temperature to 36.1°F (2.3°C), indicating a departure from freezing lows. Weather in March »Weather in April
Hartford, in April, rings in a refreshing spring vibe, with the icy winter becoming a distant memory. Warmer temperatures, extended daylight, and minimal likelihood of snow characterize this period. The city's average low temperature scales up to a more comfortable 32.5°F (0.3°C), highlighting the diminishing icy conditions. Weather in April »Weather in May
As May rolls around, Hartford fully immerses itself in spring's embrace, bidding goodbye to the lingering coolness in the air. With no snowfall, increased sunshine, and warming temperatures, May marks a distinct departure from the preceding months' weather patterns. Weather in May »Weather in June
The onset of June brings summer to Hartford, transforming the city with its characteristic warmth and sunshine. Temperature rises further, providing ample opportunity for various outdoor recreational activities. June also sees the highest level of daylight, with a peak average of 15.4 hours per day. Weather in June »Weather in July
Hunting Hartford basks in the highest average high temperature of 78.1°F (25.6°C), granted by July. This month is the warmest in the year but does not compromise on the period of sunshine. It's genuinely summer, with long, languid days and humid nights that complement the heightened activity level. Weather in July »Weather in August
August maintains a similar weather trend to July and continues to emanate a warm and sunny atmosphere in Hartford. The average high temperature slightly dips to 76.3°F (24.6°C), barely noticeable on the overall warmth of the season. Weather in August »Weather in September
September signals the advent of autumn in Hartford, gradually replacing the summer heat with cooler temperatures. This month is marked by decrease rainfall of approximately 1.85" (47mm), suggesting conditions becoming drier. The average high temperature drops to 68.7°F (20.4°C), the first distinct indicator of a cooling period. Weather in September »Weather in October
With October in Hartford, autumn begins its reign in earnest, aglow with shades of red, orange, and yellow. The ever-cooling weather, steady rainfall and diminishing daylight hours embody the classic walk-up to winter. It's the commencement of the crisp and cool chapter of the year, showing a significant drop in average high temperature to 55°F (12.8°C). Weather in October »Weather in November
November ushers in the cold again in Hartford, emerging as a gateway to freezing temperatures. The city prepares for winter, as reflected by the diminishing number of daylight hours to about 9.7 daily. The weather is increasingly brisk, particularly when the average low temperature clocks in at 29.3°F (-1.5°C). Weather in November »Weather in December
December completes the calendar year by reintroducing winter conditions to Hartford. It is back to bundling up as temperatures dive, and chances of snowfall increase, marking the annual loop back to winter. The high freeze comes with a corresponding uptick in snowfall, placing December second in line after January, with an average snowfall measure close to 6.5" (165mm). Weather in December »Updated: Aug 24, 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 stands out as Hartford's coldest month, with an average high-temperature of 25.2°F (-3.8°C) and a low-temperature of 12.4°F (-10.9°C).
January and February, with an average relative humidity of 86%, are most humid months.
Throughout the year, there are 161.9 rainfall days, and 28.46" (723mm) of precipitation is accumulated.
January through May, October through December are months with snowfall.
Throughout the year, there are 68.9 snowfall days, and 35.91" (912mm) of snow is accumulated.
The month with the most snowfall in Hartford is February, when snow falls for 15.2 days and typically aggregates up to 10.47" (266mm) of snow.
With an average of 3.6h 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.
The least humid month is May, with an average relative humidity of 75%.
The months with the highest UV index are May through August, with an average maximum UV index of 5.
June through September are months without snowfall.
The month with the longest days is June, with an average of 15h and 24min of daylight.
In Hartford, July is the warmest month, with temperatures averaging a high of 78.1°F (25.6°C) and a low of 56.7°F (13.7°C).
With an average of 10h of sunshine, August has the most sunshine of the year.
September is the month with the least rainfall. Rain falls for 11.2 days and accumulates 1.85" (47mm) of precipitation.
The month with the most rainfall is October, when the rain falls for 14.7 days and typically aggregates up to 2.99" (76mm) of precipitation.
The month with the shortest days in Hartford is December, with an average of 9h and 0min of daylight.
With an average maximum UV index of 1, December is the month with the lowest UV index.
Average temperature
Hartford, 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 (25.2°F).
The month with the highest average low temperature is July (56.7°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure
Hartford, 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:
29.99"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.01"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
Hartford, VT
- Average wind speed in January:
7.2mph - Average wind speed in February:
7.2mph - Average wind speed in March:
7.3mph - Average wind speed in April:
7.4mph - Average wind speed in May:
6.3mph - Average wind speed in June:
5.5mph
- Average wind speed in July:
5.1mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.2mph - Average wind speed in October:
6mph - Average wind speed in November:
6.5mph - Average wind speed in December:
6.8mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity
Hartford, VT
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is May (75%).
Average rainfall
Hartford, VT
- Average rainfall in January:
2.05" - Average rainfall in February:
2.17" - Average rainfall in March:
2.05" - Average rainfall in April:
2.68" - Average rainfall in May:
2.32" - Average rainfall in June:
2.8"
- Average rainfall in July:
2.68" - Average rainfall in August:
2.2" - Average rainfall in September:
1.85" - Average rainfall in October:
2.99" - Average rainfall in November:
2.17" - Average rainfall in December:
2.52"
The wettest month (with the highest rainfall) is October (2.99").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days
Hartford, VT
- Average rainfall days in January:
8.8 days - Average rainfall days in February:
8.3 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
16.6 days - Average rainfall days in May:
16.2 days - Average rainfall days in June:
16.6 days
- Average rainfall days in July:
17.4 days - Average rainfall days in August:
16.7 days - Average rainfall days in September:
11.2 days - Average rainfall days in October:
14.7 days - Average rainfall days in November:
11.3 days - Average rainfall days in December:
11.3 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is February (8.3 days).
Average snowfall
Hartford, VT
- Average snowfall in January:
7.87" - Average snowfall in February:
10.47" - Average snowfall in March:
5.75" - Average snowfall in April:
1.89" - Average snowfall in May:
0.31" - Average snowfall in June:
0"
The month with the highest snowfall is February (10.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Hartford, VT
- Average snowfall days in January:
16.3 days - Average snowfall days in February:
15.2 days - Average snowfall days in March:
13.8 days - Average snowfall days in April:
4.5 days - Average snowfall days in May:
0.4 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 days - Average snowfall days in November:
5.7 days - Average snowfall days in December:
12 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Hartford, VT
- Average daylight in January:
9h and 24min - 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 42min - Average daylight in June:
15h and 24min
- Average daylight in July:
15h and 6min - 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 0min
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 January:
3h and 48min - Average sunshine in February:
3h and 36min - Average sunshine in March:
5h and 0min - Average sunshine in April:
7h and 6min - Average sunshine in May:
8h and 12min - Average sunshine in June:
8h and 42min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 18min - Average sunshine in October:
5h and 18min - Average sunshine in November:
4h and 54min - Average sunshine in December:
4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days
Hartford, VT
- Average sunshine days in January:
12 days - Average sunshine days in February:
10.2 days - Average sunshine days in March:
9.8 days - Average sunshine days in April:
11.3 days - Average sunshine days in May:
12.4 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
11 days - Average sunshine days in August:
11.4 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
12.2 days - Average sunshine days in November:
14 days - Average sunshine days in December:
12.9 days
The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is March (9.8 days).
Average UV index
Hartford, 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
Hartford, VT
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility
Hartford, VT
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).
