January weather forecast
Old Saybrook, CT

Weather in January

January, the same as December, is a wintry winter month in Old Saybrook, Connecticut, with an average temperature varying between 25.5°F (-3.6°C) and 35.2°F (1.8°C).

Temperature

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).

Humidity

The average relative humidity in January is 74%.

Rainfall

In Old Saybrook, it is raining for 9 days, with typically 2.52" (64mm) of accumulated precipitation. Throughout the year, there are 166.2 rainfall days, and 34.8" (884mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall in Old Saybrook. In Old Saybrook, in January, during 6.3 snowfall days, 2.17" (55mm) of snow is typically accumulated. In Old Saybrook, during the entire year, snow falls for 24.2 days and aggregates up to 9.53" (242mm) of snow.

Ocean temperature

In Old Saybrook, the average water temperature is 41.9°F (5.5°C).
Note: Swimming in 41.9°F (5.5°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

In Old Saybrook, the average length of the day in January is 9h and 36min.
On the first day of January, sunrise is at 7:15 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 5:04 pm EST.

Sunshine

In January, the average sunshine is 5.1h.

UV index

The months with the lowest UV index in Old Saybrook are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 2 in January interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Old Saybrook?

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.

What is the temperature in January in Old Saybrook?

In January, in Old Saybrook, the average high-temperature is 35.2°F (1.8°C), and the average low-temperature is 25.5°F (-3.6°C).

What is the average humidity in January in Old Saybrook?

In Old Saybrook, Connecticut, the average relative humidity in January is 74%.

How many days does it rain in January in Old Saybrook?

In Old Saybrook, Connecticut, in January, during 9 rainfall days, 2.52" (64mm) of precipitation is typically accumulated.

How many days does it snow in January in Old Saybrook?

In Old Saybrook, in January, snow falls for 6.3 days, with typically accumulated 2.17" (55mm) of snow.

What is the water temperature in January in Old Saybrook?

In January, the average ocean temperature in Old Saybrook is 41.9°F (5.5°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the average length of the day in January in Old Saybrook?

In Old Saybrook, Connecticut, the average day length in January is 9h and 36min.

When is the sunrise / sunset in January in Old Saybrook?

In January, on the first day of the month, sunrise is at 7:15 am and sunset at 4:31 pm. On the last day of the month, in Old Saybrook, Connecticut, sunrise is at 7:01 am and sunset at 5:04 pm EST.

How long on average sun shines in January in Old Saybrook?

In Old Saybrook, the average sunshine duration in January is 5.1h.

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

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

How high is the UV index in January in Old Saybrook?

The average daily maximum UV index in January in Old Saybrook is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Old Saybrook, CT

Average temperature in January - Old Saybrook, CT
  • Average high temperature in January: 35.2°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in January: 25.5°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).

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Average pressure in January
Old Saybrook, CT

Average pressure in January - Old Saybrook, CT
  • Average pressure in January: 30.03"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in January
Old Saybrook, CT

Average wind speed in January - Old Saybrook, CT
  • Average wind speed in January: 10.9mph

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

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Average humidity in January
Old Saybrook, CT

Average humidity in January - Old Saybrook, CT
  • Average humidity in January: 74%

The months with the highest relative humidity are May, June and July (78%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in January
Old Saybrook, CT

Average rainfall in January - Old Saybrook, CT
  • Average rainfall in January: 2.52"

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

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Average rainfall days in January
Old Saybrook, CT

Average rainfall days in January - Old Saybrook, CT
  • Average rainfall days in January: 9 days

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

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Average snowfall in January
Old Saybrook, CT

Average snowfall in January - Old Saybrook, CT
  • Average snowfall in January: 2.17"

The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in January
Old Saybrook, CT

Average snowfall days in January - Old Saybrook, CT
  • Average snowfall days in January: 6.3 days

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

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Average sea temperature in January
Old Saybrook, CT

Average sea temperature in January - Old Saybrook, CT
  • Average sea temperature in January: 41.9°F

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).

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Average daylight in January /
Average sunshine in January
Old Saybrook, CT

Average daylight in January / Average sunshine in January - Old Saybrook, CT
  • Average daylight in January: 9h and 36min

The month with the longest days is June (Average daylight: 15h and 7min).
The month with the shortest days is December (Average daylight: 9h and 15min).

  • Average sunshine in January: 5h and 6min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

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Average sunshine days in January
Old Saybrook, CT

Average sunshine days in January - Old Saybrook, CT
  • Average sunshine days in January: 16 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is July (11.7 days).

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Average UV index in January
Old Saybrook, CT

Average UV index in January - Old Saybrook, CT
  • Average UV index in January: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in January
Old Saybrook, CT

Average cloud cover in January - Old Saybrook, CT
  • Average cloud cover in January: 45

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in January
Old Saybrook, CT

Average visibility in January - Old Saybrook, CT
  • Average visibility in January: 6mi

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

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