Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January is the month that records the lowest temperatures, with averages ranging from a high of 35.2°F (1.8°C) to a low of 25.5°F (-3.6°C).Humidity
In January, the average relative humidity is 74%.Rainfall
In January, in Old Saybrook, Connecticut, the rain falls for 9 days. Throughout January, 2.52" (64mm) of precipitation is accumulated. In Old Saybrook, during the entire year, the rain falls for 166.2 days and collects up to 34.8" (884mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In Old Saybrook, in January, during 6.3 snowfall days, 2.17" (55mm) of snow is typically accumulated. In Old Saybrook, Connecticut, 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 seawater temperature in January is 41.9°F (5.5°C).Note: It is life-risking to swim in 41.9°F (5.5°C). Briefly staying in 55.4°F (13°C) waters feels unsettling, and temperatures below 50°F (10°C) might result in cold shock and loss of breath control, hinging on personal endurance.
Daylight
The average length of the day in January is 9h and 36min.On the first day of the month, sunrise is at 7:15 am and sunset at 4:30 pm. On the last day of January, in Old Saybrook, sunrise is at 7:01 am and sunset at 5:04 pm EST.
Sunshine
In Old Saybrook, the average sunshine in January is 5.1h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Old Saybrook. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
What time of the year is the coldest in Old Saybrook?
How cold is January in Old Saybrook?
What is the average humidity in January in Old Saybrook?
How many days does it rain in January in Old Saybrook?
How many days does it snow in January in Old Saybrook?
How cold is the water in January in Old Saybrook?
How many hours of daylight does Old Saybrook have in January?
What time are sunrise and sunset in January in Old Saybrook?
How long on average sun shines in January in Old Saybrook?
What is the month with the lowest UV index in Old Saybrook?
How high is the UV index in January in Old Saybrook?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
Average daylight in January /
Average sunshine in January
Old Saybrook, CT
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 5h and 1min
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).
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).
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).
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).
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).
Old Saybrook, Connecticut, USA
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