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 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
In Saybrook, January is the coldest month, with temperatures averaging a high of 31.5°F (-0.3°C) and a low of 19.6°F (-6.9°C).Humidity
In Saybrook, the average relative humidity in January is 81%.Rainfall
In Saybrook, in January, during 4.8 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. In Saybrook, during the entire year, the rain falls for 126.2 days and collects up to 14.96" (380mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. The month with the most snowfall in Saybrook is January, when snow falls for 9.3 days and typically aggregates up to 1.38" (35mm) of snow.Daylight
The average length of the day in January in Saybrook is 9h and 41min.On the first day of January in Saybrook, sunrise is at 7:17 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:10 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 3.8h of sunshine.UV index
In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 2 in January leads to these guidelines:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Saybrook?
How cold is it in Saybrook in January?
What is the average humidity in January in Saybrook?
How many days does it rain in January in Saybrook?
When does it snow the most in Saybrook?
How many days does it snow in January in Saybrook?
How many hours of daylight does Saybrook have in January?
When are sunrise and sunset in January in Saybrook?
What is the month with the least sunshine in Saybrook?
How many hours of sunshine does Saybrook have in January?
What is the UV index reading in January in Saybrook?
Average temperature in January
Saybrook, IL
- Average high temperature in January: 31.5°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in January: 19.6°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in January
Saybrook, IL
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Saybrook, IL
- Average wind speed in January: 11mph
The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in January
Saybrook, IL
- Average humidity in January: 81%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Saybrook, IL
- Average rainfall in January: 0.87"
The wettest month (with the highest rainfall) is May (1.93").
The driest months (with the least rainfall) are February and December (0.75").
Average rainfall days in January
Saybrook, IL
- Average rainfall days in January: 4.8 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in January
Saybrook, IL
- Average snowfall in January: 1.38"
The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Saybrook, IL
- Average snowfall days in January: 9.3 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Saybrook, IL
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 3h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in January
Saybrook, IL
- Average sunshine days in January: 18.3 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in January
Saybrook, IL
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Saybrook, IL
- Average cloud cover in January: 60
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in January
Saybrook, IL
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Saybrook, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location