Deep River
Connecticut, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Deep River, CT

January, the same as December, is another cold winter month in Deep River, Connecticut, with average temperature varying between 35.2°F (1.8°C) and 25.5°F (-3.6°C). With an average high-temperature of 35.2°F (1.8°C) and an average low-temperature of 25.5°F (-3.6°C), January is the coldest month. Weather in January »

The last month of the winter, February, is also a wintry month in Deep River, Connecticut, with average temperature fluctuating between 37.9°F (3.3°C) and 26.2°F (-3.2°C). In February, the average high-temperature is relatively the same as in January - a still wintry 37.9°F (3.3°C). Weather in February »

The first month of the spring, March, is a chilly month in Deep River, Connecticut, with average temperature varying between 32.5°F (0.3°C) and 43.7°F (6.5°C). In March, the average high-temperature slightly increases, from a wintry 37.9°F (3.3°C) in February, to a chilly 43.7°F (6.5°C). Weather in March »

April is a fresh spring month in Deep River, Connecticut, with temperature in the range of an average low of 41.7°F (5.4°C) and an average high of 54.3°F (12.4°C). In Deep River, the average high-temperature increases, from a chilly 43.7°F (6.5°C) in March, to a fresh 54.3°F (12.4°C). Weather in April »

The last month of the spring, May, is a comfortable month in Deep River, Connecticut, with average temperature fluctuating between 64.9°F (18.3°C) and 50.7°F (10.4°C). In May, the average high-temperature increases, from a cool 54.3°F (12.4°C) in April, to a comfortable 64.9°F (18.3°C). Weather in May »

June, the first month of the summer, in Deep River, is a pleasant month, with temperature in the range of an average low of 58.8°F (14.9°C) and an average high of 73°F (22.8°C). In June, the average high-temperature slightly increases, from an enjoyable 64.9°F (18.3°C) in May, to an agreeable 73°F (22.8°C). Weather in June »

July is a moderately hot summer month in Deep River, Connecticut, with average temperature ranging between min 66.6°F (19.2°C) and max 79.7°F (26.5°C). July is the warmest month, with an average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 66.6°F (19.2°C). Weather in July »

The last month of the summer, August, is another warm month in Deep River, Connecticut, with average temperature ranging between min 65.7°F (18.7°C) and max 78.6°F (25.9°C). In August, the average high-temperature is relatively the same as in July - a still warm 78.6°F (25.9°C). Weather in August »

The first month of the autumn, September, is also an agreeable month in Deep River, Connecticut, with average temperature varying between 59.5°F (15.3°C) and 72.3°F (22.4°C). In September, the average high-temperature slightly decreases, from a warm 78.6°F (25.9°C) in August, to a pleasant 72.3°F (22.4°C). Weather in September »

October, the same as September, is another comfortable autumn month in Deep River, Connecticut, with temperature in the range of an average low of 50.5°F (10.3°C) and an average high of 61.9°F (16.6°C). In October, the average high-temperature decreases, from a pleasant 72.3°F (22.4°C) in September, to an enjoyable 61.9°F (16.6°C). Weather in October »

The last month of the autumn, November, is another cool month in Deep River, Connecticut, with average temperature fluctuating between 39.9°F (4.4°C) and 50.7°F (10.4°C). In November, the average high-temperature decreases, from a comfortable 61.9°F (16.6°C) in October, to a fresh 50.7°F (10.4°C). Weather in November »

The first month of the winter, December, is still a cold month in Deep River, Connecticut, with average temperature varying between 32.4°F (0.2°C) and 41.9°F (5.5°C). In Deep River, the average high-temperature in December marginally drops, from a cool 50.7°F (10.4°C) in November, to a wintry 41.9°F (5.5°C). Weather in December »

What is the coldest month in Deep River?

January is the coldest month, with an average high-temperature of 35.2°F (1.8°C) and an average low-temperature of 25.5°F (-3.6°C).

How much does it rain in Deep River?

Throughout the year, in Deep River, there are 166.2 rainfall days, and 34.8" (884mm) of precipitation is accumulated.

When does it snow in Deep River?

January through May, November and December are months with snowfall in Deep River, Connecticut.

How many days does it snow in Deep River?

Throughout the year, in Deep River, there are 24.2 snowfall days, and 9.53" (242mm) of snow is accumulated.

What are the months with the lowest UV index in Deep River?

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

What is the month with the least sunshine in Deep River?

Months with the least sunshine in Deep River, Connecticut, are February and December, with an average of 4.8h of sunshine.

When does it snow the most in Deep River?

March is the month with the most snowfall in Deep River. Snow falls for 4.7 days and accumulates 2.76" (70mm) of snow.

What is the least humid month in Deep River?

The least humid month is April, with an average relative humidity of 73%.

What are the most humid months in Deep River?

May through July, with an average relative humidity of 78%, are most humid months.

When it does not snow in Deep River?

June through October are months without snowfall in Deep River, Connecticut.

When are the longest days in Deep River?

The month with the longest days in Deep River is June, with an average of 15.1h of daylight.

When is the highest UV index in Deep River?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Deep River.

What is the warmest month in Deep River?

The warmest month is July, with an average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 66.6°F (19.2°C).

What month has the most sunshine in Deep River?

August has the most sunshine of the year, with an average of 10.6h of sunshine.

What is the driest month in Deep River?

September is the month with the least rainfall in Deep River, Connecticut. Rain falls for 13 days and accumulates 1.93" (49mm) of precipitation.

What is the rainiest month in Deep River?

The month with the most rainfall in Deep River, Connecticut, is December when the rain falls for 13 days and typically aggregates up to 3.66" (93mm) of precipitation.

What is the month with the shortest days in Deep River?

December has the shortest days of the year, with an average of 9.2h of daylight.
Average temperature - Deep River, CT
Average humidity - Deep River, CT
Average rainfall - Deep River, CT

The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days - Deep River, CT
Average snowfall - Deep River, CT
Average snowfall days - Deep River, CT

The month with the highest number of snowfall days is February (7 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine - Deep River, CT

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.2h).

The month with the most sunshine is August (Average sunshine: 10.6h).
Months with the least sunshine are February and December (Average sunshine: 4.8).

Average UV index - Deep River, CT