Climate and monthly weather forecast
Unionville, CT

Share

Weather in January

January, like December, in Unionville, Connecticut, is a wintry winter month, with temperature in the range of an average high of 32°F (0°C) and an average low of 20.1°F (-6.6°C). January is the coldest month of the year, registering average temperatures as high as 32°F (0°C) and as low as 20.1°F (-6.6°C). Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Unionville, Connecticut, with temperature in the range of an average high of 35.2°F (1.8°C) and an average low of 20.7°F (-6.3°C). Entering February, Unionville's average high-temperature reads a still cold 35.2°F (1.8°C), indicating a close resemblance to the previous month's climate. Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Unionville, Connecticut, with an average temperature ranging between min 28.8°F (-1.8°C) and max 42.8°F (6°C). Unionville's weather in March presents a minor rise in the average high-temperature, moving from a cold 35.2°F (1.8°C) in February to a chilly 42.8°F (6°C). Weather in March »

Weather in April

April is a mild spring month in Unionville, Connecticut, with temperature in the range of an average low of 38.8°F (3.8°C) and an average high of 56.1°F (13.4°C). The shift into April is marked by a rise in the average high-temperature, moving from March's chilly 42.8°F (6°C) to a mild 56.1°F (13.4°C). Weather in April »

Weather in May

May, the last month of the spring in Unionville, is a refreshing month, with an average temperature fluctuating between 48.7°F (9.3°C) and 67.6°F (19.8°C). May brings a temperature increase, with average high-temperatures moving from April's moderate 56.1°F (13.4°C) to a comfortable 67.6°F (19.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Unionville, Connecticut, with temperature in the range of an average low of 56.5°F (13.6°C) and an average high of 75.6°F (24.2°C). Unionville observes a slight ascent in average high-temperatures during June, adjusting from a refreshing 67.6°F (19.8°C) in May to a warm 75.6°F (24.2°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Unionville, Connecticut, with an average temperature varying between 63.1°F (17.3°C) and 82.2°F (27.9°C). July brings the highest temperatures, with an average high of 82.2°F (27.9°C) and an average low of 63.1°F (17.3°C). The heat index for July is computed to be a tropical 87.8°F (31°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Unionville, Connecticut, with an average temperature varying between 61.5°F (16.4°C) and 80.2°F (26.8°C). As Unionville welcomes August, the average high-temperature records at a still warm 80.2°F (26.8°C), marking an insignificant deviation from the prior month. Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Unionville, Connecticut, with an average temperature ranging between max 72.9°F (22.7°C) and min 54.7°F (12.6°C). As September commences, the average high-temperature subtly reduces, transitioning from a warm 80.2°F (26.8°C) in August to an agreeable 72.9°F (22.7°C). Weather in September »

Weather in October

October, the same as September, in Unionville, Connecticut, is a moderate autumn month, with an average temperature ranging between max 60.1°F (15.6°C) and min 45.5°F (7.5°C). October comes with a drop in the average high-temperature, falling from September's pleasant 72.9°F (22.7°C) to a moderate 60.1°F (15.6°C). Weather in October »

Weather in November

November, the last month of the autumn in Unionville, is also a frosty month, with temperature in the range of an average high of 48.2°F (9°C) and an average low of 34.9°F (1.6°C). November brings a decrease in the average high-temperature, shifting from a moderate 60.1°F (15.6°C) in October to a chilly 48.2°F (9°C). Weather in November »

Weather in December

December, the first month of the winter in Unionville, is also a wintry month, with an average temperature varying between 26.8°F (-2.9°C) and 37.6°F (3.1°C). Start of December brings a shift in the average high-temperature, falling from November's frosty 48.2°F (9°C) to a wintry 37.6°F (3.1°C). Weather in December »
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in Unionville?

January, with its high-temperature average of 32°F (0°C) and a low-temperature average of 20.1°F (-6.6°C), is the coldest month.

How many days does it rain in Unionville?

Throughout the year, in Unionville, there are 159.6 rainfall days, and 31.97" (812mm) of precipitation is accumulated.

When does it snow in Unionville?

January through May, October through December are months with snowfall.

How many days does it snow in Unionville?

In Unionville, Connecticut, during the entire year, snow falls for 33.1 days and aggregates up to 18.39" (467mm) of snow.

What is the month with the lowest UV index in Unionville?

The months with the lowest UV index in Unionville are January through March, November and December, with an average maximum UV index of 2.

What is the most humid month in Unionville?

The most humid month in Unionville is February, with an average relative humidity of 80%.

What is the snowiest month in Unionville?

February is the month with the most snowfall. Snow falls for 8.9 days and accumulates 5.24" (133mm) of snow.

What is the month with the least sunshine in Unionville?

The month with the least sunshine is February, with an average of 4.6h of sunshine.

When is Daylight Saving Time (DST) in Unionville?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Unionville, 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.

What is the least humid month in Unionville?

With an average relative humidity of 71%, April is the least humid month in Unionville, Connecticut.

When it does not snow in Unionville?

In Unionville, snow does not fall in June through September.

When are the longest days in Unionville?

With an average of 15h and 12min of daylight, June has the longest days of the year in Unionville, Connecticut.

What are the months with the highest UV index in Unionville?

The months with the highest UV index in Unionville are June and July, with an average maximum UV index of 6.

What is the hottest time of year in Unionville?

Temperature records mark July as the warmest month, with highs averaging 82.2°F (27.9°C) and lows at 63.1°F (17.3°C).

What are the months with the most sunshine in Unionville?

The months with the most sunshine in Unionville, Connecticut, are July and August, with an average of 10.3h of sunshine.

What is the driest month in Unionville?

September is the month with the least rainfall. Rain falls for 12.6 days and accumulates 1.97" (50mm) of precipitation.

What is the rainiest month in Unionville?

December is the month with the most rainfall in Unionville. Rain falls for 10.5 days and accumulates 3.43" (87mm) of precipitation.

What is the month with the shortest days in Unionville?

December has the shortest days of the year, with an average of 9h and 12min of daylight.

Average temperature
Unionville, CT

Average temperature - Unionville, CT

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32°F).

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure
Unionville, CT

Average pressure - Unionville, CT

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
Unionville, CT

Average wind speed - Unionville, CT

The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity
Unionville, CT

Average humidity - Unionville, CT

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).

Average rainfall
Unionville, CT

Average rainfall - Unionville, CT

The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days
Unionville, CT

Average rainfall days - Unionville, CT

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (9.4 days).

Average snowfall
Unionville, CT

Average snowfall - Unionville, CT

The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Unionville, CT

Average snowfall days - Unionville, CT

The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Unionville, CT

Average daylight / Average sunshine - Unionville, CT

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).

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days
Unionville, CT

Average sunshine days - Unionville, CT

The month with the most sunshine days is January (17.1 days).
The month with the least sunshine days is June (11.6 days).

Average UV index
Unionville, CT

Average UV index - Unionville, 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 visibility
Unionville, CT

Average visibility - Unionville, CT

The months with the highest visibility are April, October, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August and September (5mi).

Unionville, Connecticut, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location