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 brings the lowest temperatures, with an average high of 26.6°F (-3°C) and an average low of 15.1°F (-9.4°C).Humidity
The months with the highest humidity are January and February, with an average relative humidity of 87%.Rainfall
In January, in Dexter, the rain falls for 5.3 days. Throughout January, 1.34" (34mm) of precipitation is accumulated. Throughout the year, there are 126.1 rainfall days, and 17.01" (432mm) of precipitation is accumulated.Snowfall
Months with snowfall in Dexter are January through April, October through December. In January, it is snowing for 13.8 days. Throughout January, 3.58" (91mm) of snow is accumulated. Throughout the year, there are 53.5 snowfall days, and 15" (381mm) of snow is accumulated.Ocean temperature
In January, the average ocean temperature is 37.9°F (3.3°C).Note: During swimming, this state is an instant threat to life. Breathing is uncontrollable, and coherent thought processes nearly vanish. A specialized swimsuit is crucial to minimize thermal dissipation.
Daylight
The average length of the day in January in Dexter is 9h and 20min.On the first day of January in Dexter, sunrise is at 7:38 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:12 pm EST.
Sunshine
January has the least sunshine of the year, with an average of 2.6h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 1 during January leads to these advisories:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is it in Dexter in January?
What are the most humid months?
What is the average humidity in January?
How much does it rain in January?
How many days does it snow in January?
What is the water temperature in January?
What is the average length of the day in January?
When is the sunrise / sunset in January in Dexter?
What is the month with the least sunshine?
How many hours of sunshine does Dexter have in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Dexter, NY
- Average high temperature in January: 26.6°F
The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in January: 15.1°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in January
Dexter, NY
- Average pressure in January: 30.03"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Dexter, NY
- Average wind speed in January: 11.2mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in January
Dexter, NY
- Average humidity in January: 87%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April and September (77%).
Average rainfall in January
Dexter, NY
- Average rainfall in January: 1.34"
The wettest month (with the highest rainfall) is October (1.93").
The driest month (with the least rainfall) is September (0.94").
Average rainfall days in January
Dexter, NY
- Average rainfall days in January: 5.3 days
The month with the highest number of rainy days is October (15.5 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in January
Dexter, NY
- Average snowfall in January: 3.58"
The month with the highest snowfall is December (4.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Dexter, NY
- Average snowfall days in January: 13.8 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in January
Dexter, NY
- Average sea temperature in January: 38°F
The best month for swimming (with the highest average sea temperature) is August (70.1°F).
The coldest month (with the lowest average sea temperature) is March (35.5°F).
Average daylight in January /
Average sunshine in January
Dexter, NY
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 2h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in January
Dexter, NY
- Average sunshine days in January: 11.1 days
The month with the most sunshine days is September (18.7 days).
The month with the least sunshine days is January (11.1 days).
Average UV index in January
Dexter, NY
- Average UV index in January: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Dexter, NY
- Average cloud cover in January: 75
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 31).
Average visibility in January
Dexter, NY
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Dexter, New York, USA
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