Climate and monthly weather forecastWindsor, CT
Climate and monthly weather forecast
The climate of Windsor
Speaking of Windsor, Connecticut, USA, this geographical location is classified under Dfa in the Köppen climate classification. It translates to a humid continental climate with a hot summer and no dry season. A year-round display of significant and rapid changes in temperature, humidity, and precipitation characterizes this climate.Fluctuations happen in all weather parameters throughout the year. The highest average temperature, around 83.1°F (28.4°C), occurs during the summer months, particularly in July. Winter hits its peak in January, with the thermometer dropping to as low as 21.2°F (-6°C). As for humidity, the levels stay rather consistent all year, ranging from 71 to 80% relative humidity.
Noticeable patterns appear when looking at rainfall. With measurements varying from 1.77" (45mm) to 3.27" (83mm), rainfall is spread uniformly across the year. The months with the most rainfall tend to be in late spring until early autumn. Windsor residents may expect more precipitation in May, June, and July, along with September and December.
The best time to visit Windsor
The best time to visit Windsor depends largely on the preferred activities and weather conditions of the visitors. However, to maximize the experience, it might be most advantageous to visit from late spring to early summer. This time exhibits an optimal balance between comfortable temperatures and ample daylight. From May to June, the average high temperature ranges from 68.9°F (20.5°C) to 76.5°F (24.7°C), while average daylight hours extend from 14.6 hours to 15.2 hours.The worst time to visit Windsor
In contrast, winters can be quite severe in Windsor, Connecticut with average low temperatures reaching 21.2°F (-6°C) in January. Combined with an average of 7.8 days of snowfall in the same month, this might pose challenges for visitors not accustomed to colder climates. Hence, January could be viewed as the least desirable time for tourists chiefly due to icy roads and pathways and limited outdoor activities.Spring weather in Windsor
Spring in Windsor, Connecticut, features an ascending curve on the thermometer. Starting from an average high temperature of 44.2°F (6.8°C) in March, it swiftly rises to 68.9°F (20.5°C) in May. Simultaneously, the amount of daylight increases progressively from 12 hours in March to 14.6 hours in May, providing bright and longer days. Spring also brings an increase in precipitation, peaking at 2.83" (72mm) in April, with up to 14.9 rainfall days on average.Summer weather in Windsor
Summers in Windsor are categorized with warm temperatures and abundant sunshine. Between June and August, the average high temperature fluctuates between 76.5°F (24.7°C) and 83.1°F (28.4°C). Sunlight lasts for an average of around 15 hours per day, with peak sunshine duration of 10.4 hours observed in July and August. Despite the warmth, Windsor experiences a fair amount of rain in summer, with an average of 17 to 17.3 rainfall days per month.Autumn weather in Windsor
Autumn marks a gradual cooldown in Windsor, with temperatures steadily declining from an average high of 73.4°F (23°C) in September to 48.9°F (9.4°C) in November. It's a season of abundant rainfall, especially in October, which records an average of 3.03" (77mm) of rainfall. Despite the rainy days, the month also features considerable sunlight duration of 11.1 hours on average, contributing to the beauty of the fall foliage.Winter weather in Windsor
Winter in Windsor is cold and snowy. The thermometer plunges to an average low of 21.2°F (-6°C) in January, the coldest month. December and January also see a significant amount of snowfall, with an average of 3.15" (80mm) and 3.39" (86mm) respectively. Daylight during these months is limited to approximately 9.2 to 9.5 hours. Despite the chill, Windsor exhibits its own quiet beauty under the snow blanket, rendered even more serene under the relatively clear winter skies.Weather in January
In Windsor, Connecticut, January marks the height of winter with temperatures often quite low and consistent snowfall. Chilly temperatures can reach an average low of 21.2°F (-6°C) while an average high can go up to 32.9°F (0.5°C). Weather in January »Weather in February
Transitioning into February, Windsor starts to experience a slight increase in temperatures compared to January. February is characterized by a slight increment in both the average snowfall, reaching 4.8" (122mm), and the average high temperature elevating to 36°F (2.2°C). Weather in February »Weather in March
As winter slowly releases its grip, March ushers in the first inklings of spring in Windsor. There is an observable decrease in the snowfall to an average of 4.17" (106mm) and an increase in average high temperatures to a comparatively warmer 44.2°F (6.8°C). Weather in March »Weather in April
April in Windsor welcomes the full blooming of spring with noticeable increases in temperature and reduction in snowfall. This month registers a significant drop in snowfall to just 0.59" (15mm), marking a decline in winter conditions. Weather in April »Weather in May
May brings the anticipation of summer in Windsor with a further increase in temperatures. During this time, greenery thrives, and a pleasant atmosphere prevails, making it an excellent period for outdoor activities. Enhancement in the daylight hours contributes to the vibrancy of life during this period. Weather in May »Weather in June
June signals the official start of summer in Windsor, with temperatures continuing to soar and longer daylight hours becoming the norm. June is characterized by an average high temperature of 76.5°F (24.7°C), making it one of the warmest months of the year. Weather in June »Weather in July
July stands as the peak of Windsor's summer with the longest daylight hours and the hottest temperatures. The city experiences its highest average high temperature of 83.1°F (28.4°C) during this month. Festive mood continues to grow with a multitude of outdoor events and recreational activities being organized. Weather in July »Weather in August
As summer progresses, August in Windsor still observes quite hot temperatures, albeit with a slight dip compared to July. This time of year basks under the generosity of warm daylight, facilitating community gatherings and vibrant nightlife. Weather in August »Weather in September
September marks the beginning of autumn in Windsor with temperatures recording a noticeable decrease. During this month, the city experiences an average high temperature reduction to 73.4°F (23°C). The town starts entering a phase of transformation with the leaves beginning to change color and painting a vividly beautiful picture. Weather in September »Weather in October
October in Windsor is characterized by the full swing of autumn and the advent of cooler temperatures. The weather continues its cooling trend with the lush green turning into a spectrum of reds, oranges, and yellows. Halloween festivities, pumpkin patches, and harvest events fill the October calendar. Weather in October »Weather in November
November in Windsor brings about the gradual transition into winter with temperatures continuing to decrease. The conditions invite an average snowfall of 0.67" (17mm), hinting at the impending winter. As autumn recedes, the trees shed their leaves to prepare themselves for the harsher winter times. Weather in November »Weather in December
December in Windsor announces the arrival of winter, bringing along colder temperatures and increased snowfall. Throughout this month, the city sees an average snowfall of 3.15" (80mm), second only to the peak observed in February. Weather in December »Updated: Jun 8, 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, having an average high-temperature of 32.9°F (0.5°C) and an average low-temperature of 21.2°F (-6°C), is the coldest month.
Throughout the year, there are 164.8 rainfall days, and 31.77" (807mm) of precipitation is accumulated.
January through May, October through December are months with snowfall.
Throughout the year, there are 31.6 snowfall days, and 17.13" (435mm) of snow is accumulated.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
February is the most humid month, with an average relative humidity of 80%.
February is the month with the most snowfall. Snow falls for 8.5 days and accumulates 4.8" (122mm) of snow.
With an average of 4.6h 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.
With an average relative humidity of 71%, April is the least humid month.
In Windsor, snow does not fall in June through September.
The month with the longest days is June, with an average of 15h and 12min of daylight.
June and July, with an average maximum UV index of 6, are months with the highest UV index.
The warmest period tends to be July, when average temperatures fluctuate between a high of 83.1°F (28.4°C) and a low of 63.5°F (17.5°C).
July and August, with an average of 10.4h of sunshine, are months with the most sunshine.
The month with the least rainfall is September, when the rain falls for 12.5 days and typically collects 1.77" (45mm) of precipitation.
The month with the most rainfall is December, when the rain falls for 11.8 days and typically aggregates up to 3.27" (83mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 12min of daylight.
Average temperature
Windsor, CT
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (32.9°F).
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure
Windsor, CT
- Average pressure in January:
30.03"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.05"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Windsor, CT
- Average wind speed in January:
8.1mph - Average wind speed in February:
8mph - Average wind speed in March:
8.1mph - Average wind speed in April:
7.8mph - Average wind speed in May:
6.5mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.8mph - Average wind speed in October:
6.9mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.8mph
The windiest months (with the highest average wind speed) are January and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity
Windsor, CT
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).
Average rainfall
Windsor, CT
- Average rainfall in January:
2.28" - Average rainfall in February:
2.32" - Average rainfall in March:
2.68" - Average rainfall in April:
2.83" - Average rainfall in May:
2.6" - Average rainfall in June:
2.8"
- Average rainfall in July:
2.83" - Average rainfall in August:
2.6" - Average rainfall in September:
1.77" - Average rainfall in October:
3.03" - Average rainfall in November:
2.76" - Average rainfall in December:
3.27"
The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days
Windsor, CT
- Average rainfall days in January:
10 days - Average rainfall days in February:
10.3 days - Average rainfall days in March:
12.7 days - Average rainfall days in April:
14.9 days - Average rainfall days in May:
16.5 days - Average rainfall days in June:
17 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
16.7 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
14.5 days - Average rainfall days in November:
10.6 days - Average rainfall days in December:
11.8 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (10 days).
Average snowfall
Windsor, CT
- Average snowfall in January:
3.39" - Average snowfall in February:
4.8" - Average snowfall in March:
4.17" - Average snowfall in April:
0.59" - Average snowfall in May:
0.31" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Windsor, CT
- Average snowfall days in January:
7.8 days - Average snowfall days in February:
8.5 days - Average snowfall days in March:
6.9 days - Average snowfall days in April:
0.9 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:
0.1 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
5.8 days
The month with the highest number of snowfall days is February (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Windsor, CT
- Average daylight in January:
9h and 30min - 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 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 18min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 24min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 24min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 48min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Windsor, CT
- Average sunshine days in January:
17 days - Average sunshine days in February:
12.9 days - Average sunshine days in March:
12.5 days - Average sunshine days in April:
12.2 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
11.2 days
- Average sunshine days in July:
12 days - Average sunshine days in August:
12 days - Average sunshine days in September:
14.6 days - Average sunshine days in October:
14.1 days - Average sunshine days in November:
17.2 days - Average sunshine days in December:
15.1 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (11.2 days).
Average UV index
Windsor, CT
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Windsor, CT
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Windsor, CT
The months with the highest visibility are January, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are February, May and September (5mi).
