Old Saybrook
Connecticut, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Old Saybrook, CT

January, like December, in Old Saybrook, Connecticut, is another cold winter month, with average temperature varying between 35.2°F (1.8°C) and 25.5°F (-3.6°C). 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). Weather in January »

The last month of the winter, February, is another cold month in Old Saybrook, Connecticut, with average temperature ranging between min 26.2°F (-3.2°C) and max 37.9°F (3.3°C). In February, the average high-temperature is almost 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 Old Saybrook, Connecticut, with temperature in the range of an average low of 32.5°F (0.3°C) and an average high of 43.7°F (6.5°C). In Old Saybrook, the average high-temperature in March marginally rises, from a cold 37.9°F (3.3°C) in February, to a chilly 43.7°F (6.5°C). Weather in March »

April in Old Saybrook, Connecticut, is a cool spring month, with average temperature varying between 54.3°F (12.4°C) and 41.7°F (5.4°C). In April, the average high-temperature increases, from a frosty 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 Old Saybrook, Connecticut, with average temperature varying between 50.7°F (10.4°C) and 64.9°F (18.3°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 Old Saybrook, is a pleasant month, with average temperature ranging between min 58.8°F (14.9°C) and max 73°F (22.8°C). In Old Saybrook, the average high-temperature slightly increases, from a comfortable 64.9°F (18.3°C) in May, to an agreeable 73°F (22.8°C). Weather in June »

July is a warm summer month in Old Saybrook, Connecticut, with average temperature ranging between max 79.7°F (26.5°C) and min 66.6°F (19.2°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 »

August, the last month of the summer, in Old Saybrook, is another warm month, with average temperature varying between 78.6°F (25.9°C) and 65.7°F (18.7°C). In August, the average high-temperature is essentially the same as in July - a still moderately hot 78.6°F (25.9°C). Weather in August »

September, the first month of the autumn, in Old Saybrook, is also an agreeable month, with average temperature ranging between min 59.5°F (15.3°C) and max 72.3°F (22.4°C). In September, the average high-temperature marginally drops, from a moderately hot 78.6°F (25.9°C) in August, to an agreeable 72.3°F (22.4°C). Weather in September »

October, the same as September, is another enjoyable autumn month in Old Saybrook, Connecticut, with average temperature fluctuating between 61.9°F (16.6°C) and 50.5°F (10.3°C). In October, the average high-temperature drops, from an agreeable 72.3°F (22.4°C) in September, to a comfortable 61.9°F (16.6°C). Weather in October »

The last month of the autumn, November, is another cool month in Old Saybrook, Connecticut, with average temperature varying between 50.7°F (10.4°C) and 39.9°F (4.4°C). In Old Saybrook, Connecticut, the average high-temperature in November drops, from an enjoyable 61.9°F (16.6°C) in October, to a cool 50.7°F (10.4°C). Weather in November »

December, the first month of the winter, in Old Saybrook, is also a wintry month, with average temperature fluctuating between 41.9°F (5.5°C) and 32.4°F (0.2°C). In Old Saybrook, the average high-temperature marginally drops, from a fresh 50.7°F (10.4°C) in November, to a cold 41.9°F (5.5°C). Weather in December »

What is the coldest month in Old Saybrook?

The coldest month is January, 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 Old Saybrook?

In Old Saybrook, Connecticut, during the entire year, the rain falls for 166.2 days and collects up to 34.8" (884mm) of precipitation.

When does it snow in Old Saybrook?

Months with snowfall in Old Saybrook are January through May, November and December.

How much does it snow in Old Saybrook?

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

When is the lowest UV index in Old Saybrook?

Months with the lowest UV index in Old Saybrook are January through March, November and December, with an average maximum UV index of 2.

What is the month with the coldest ocean in Old Saybrook?

The month with the coldest seawater is February, with an average ocean temperature of 38.8°F (3.8°C).

What is the month with the least sunshine in Old Saybrook?

Months with the least sunshine in Old Saybrook are February and December, with an average of 4.8h of sunshine.

What is the snowiest month in Old Saybrook?

The month with the most snowfall is March when snow falls for 4.7 days and typically aggregates up to 2.76" (70mm) of snow.

What is the least humid month in Old Saybrook?

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

What are the most humid months in Old Saybrook?

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

When it does not snow in Old Saybrook?

June through October are months without snowfall in Old Saybrook.

When are the longest days in Old Saybrook?

The month with the longest days in Old Saybrook, Connecticut, is June, with an average of 15.1h of daylight.

What is the month with the highest UV index in Old Saybrook?

Months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the warmest month in Old Saybrook?

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).

What is the month with the warmest ocean in Old Saybrook?

August is the month with the warmest seawater, with an average ocean temperature of 72.1°F (22.3°C).

What month has the most sunshine in Old Saybrook?

With an average of 10.6h of sunshine, August has the most sunshine of the year in Old Saybrook.

What is the driest month in Old Saybrook?

The month with the least rainfall in Old Saybrook is September when the rain falls for 13 days and typically collects 1.93" (49mm) of precipitation.

What is the wettest month in Old Saybrook?

The month with the most rainfall 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 Old Saybrook?

The month with the shortest days in Old Saybrook is December, with an average of 9.3h of daylight.
Average temperature - Old Saybrook, CT
Average humidity - Old Saybrook, CT
Average rainfall - Old Saybrook, CT

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

Average rainfall days - Old Saybrook, CT

The month with the highest number of rainy days is July (17 days).
The month with the lowest number of rainy days is January (9 days).

Average snowfall - Old Saybrook, CT
Average snowfall days - Old Saybrook, CT

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

Average sea temperature - Old Saybrook, CT

The best month for swimming (with the highest average sea temperature) is August (72.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).

Average daylight / Average sunshine - Old Saybrook, CT

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.3h).

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

Average UV index - Old Saybrook, CT