United StatesAverage weather for Jefferson in January
It's cold in January in Jefferson with an average temperature of 1°C. Temperatures this month range from a low of -2°C to a high of 5°C. At night, you can expect temperatures between -11°C and -3°C.
Start of January
The month of January starts in Jefferson with really cold temps, averaging around 2°C during the day and nights dipping to about -6°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry. Wear a heavy winter coat, sweater, long pants, beanie, and gloves.
Mid January
By mid-January, daytime temps drop to around 1°C, with nights around -7°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too. Wear a heavy winter coat, sweater, long pants, beanie, and gloves.
End of January
By the end of January, the average daytime temperature in Jefferson is around 1°C, while nighttime temps are about -8°C. A shower might pop up, but overall, the weather will be dry and sunny. Wear a heavy winter coat, sweater, long pants, beanie, and gloves.
In January, there is an average of 91 mm of precipitation, spread over 8 days. Of the total precipitation, about 48 cm falls as snow in January. The wind speed is around 4 Bft, mostly coming from the Southwest.
Jefferson in January |
New York | ||
|---|---|---|---|
 Average temperature |
1°C | 5°C | |
 Max. temperature |
5°C | 11°C | |
| Min. temperature |
-2°C | -5°C | |
 Total precipitation |
91 mm | 97 mm | |
| Rainy days |
8 days | 12 days | |
 Total snowfall |
48 cm | 16 cm | |
| Snowy days |
18 days | 8 days | |
December
UV index
The UV index is a maximum of 4 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Temperature records
With 19°C in 2020, Jefferson reached the highest temperature in January over the past 10 years. The lowest daytime temperature in this month was -14°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of -25°C to a highest value of 9°C.
Check out the climate of Jefferson for all months and discover the best travel time
Daily Temperature in January in Jefferson
This chart shows the average daily high and low temperatures in January for Jefferson, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in January in Jefferson
The chart below shows the average daily precipitation in January for Jefferson, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for January, you can expect about 8 days of precipitation in Jefferson.
Daily Snowfall in January in Jefferson
This chart shows the average daily snowfall in January in Jefferson, measured in centimeters. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in January.
Daily UV index in January in Jefferson
This chart shows the average daily UV index in January in Jefferson, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in January in Jefferson over the years
This chart shows the average temperature in January in Jefferson, measured in degrees Celsius, over the past few years.
Total precipitation in January in Jefferson over the years
This chart shows the average precipitation in January in Jefferson, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Snowfall in January in Jefferson per year
This chart shows the average snowfall in January in Jefferson, measured in centimeters, over the past few years.
Daily weather in January for Jefferson
Click on any day in January to get detailed info about the usual weather on that day in Jefferson. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in January in Jefferson
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Average weather in Jefferson by month
Click on a month below to see detailed weather info for Jefferson. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Jefferson for all months at once
