Climateby Month

Waterbury, CT weather in January

NOAA 1991-2020 normals and daily records · Waterbury all year

In January, Waterbury sees highs around 36°F and lows around 17°F: cold and snowy. Expect about 10 wet days. Snowfall averages about 13.1 in. It is one of the coldest months in Waterbury. Pack for snow.

Normal high
36°F
Normal low
17°F
Wet days
10
3.6 in total
Snowfall
13.1 in
snow on the ground 23 days

How January changes from start to finish

Normal values at the start and end of January
January 1January 31
Normal high37°F37°F
Normal low20°F16°F
Chance of a wet day35%31%
Sunrise / sunset7:18 am / 4:32 pm7:04 am / 5:06 pm
Daylight9.2 h10.0 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).

A typical January day

  1. 6 am24°Fdew point 16°F
  2. 9 am26°Fdew point 17°F
  3. Noon31°Fdew point 18°F
  4. 3 pm33°Fdew point 18°F
  5. 6 pm30°Fdew point 18°F
  6. 9 pm27°Fdew point 17°F

NOAA hourly normals (local standard time) from Hartford Bradley Intl Airport (32 mi away); average wind 8 mph.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
  • Hot dayshigh 90°F or more0 of 31
  • Muggy daysdaily mean dew point 65°F or more0 of 31
  • Wet daysat least 0.01 in of rain or melted snow10 of 31
  • Notable rainat least 0.10 in7 of 31
  • Freezing nightslow 32°F or below29 of 31
  • Snow on the groundsnow depth 1 in or more23 of 31

Average days per January, counted from daily records for each year 1991-2020.

Rain and snow in January

Normal precipitation is 3.6 in; a dry January brings about 2.3 in and a wet one about 4.2 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more. Normal snowfall is 13.1 in, with about 4 days of an inch or more.

How January varies from year to year

  • Warmest January, 1991-20202006: average high 43°F
  • Coolest January2004: average high 28°F
  • Wettest January1996: 8.9 in
  • Driest January2002: 1.3 in
  • Highest reading72°F (January 7, 2007)
  • Lowest reading-16°F (January 28, 1994)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

January compared with December and February

DecemberJanuaryFebruary
Normal high41°F36°F39°F
Normal low24°F17°F18°F
Wet days11109
Comfortable days000
Daylight9.2 h9.6 h10.6 h

Highs change by -5°F from December and +3°F into February.

Nearby alternatives in January

How Waterbury ranks in January

  • Normal high286th warmest of 378 cities; 5th of 5 in Connecticut
  • Wet days224th driest of 378
  • Comfortable days250th most of 339

What to pack for Waterbury in January

  • A warm jacket – lows near 17°F, highs near 36°F
  • A rain jacket or umbrella – rain or snow on about 10 days
  • Waterproof boots – snow on the ground on about 23 days
  • A hat and gloves – about 29 freezing nights

Heating and cooling

January has 1189 heating degree days and 0 cooling degree days (base 65°F), 17% of the year's total heating and cooling demand.

Questions

How cold is Waterbury in January?

The normal high is 36°F and the normal low is 17°F. From 1991 to 2020 the coldest January reading was -16°F (January 28, 1994).

Does it rain a lot in Waterbury in January?

About 10 days in January have at least 0.01 in of precipitation, and the normal total is 3.7 in. The wettest January in 1991-2020 was in 1996 (8.9 in); the driest was in 2002 (1.3 in).

Does it snow in Waterbury in January?

Yes. Normal snowfall in January is 13.1 in, and snow covers the ground on about 23 days.

Is January a good time to visit Waterbury?

January ranks 12th of 12 months on our comfort score for Waterbury (28 out of 100). It has almost no comfortable days. The best months are May and September.

Where the numbers come from

  • Temperature and rain: Burlington (USC00060973), 17 mi NNE of the city center, 505 ft (234 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Snowfall and snow depth: Bakersville (USC00060227), 20 mi N of the city center, 686 ft (415 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Frost dates: Meriden Markham Muni Airport (USW00054788), 12 mi ESE of the city center, 103 ft (168 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour: Hartford Bradley Intl Airport (USW00014740), 32 mi NE of the city center, 190 ft (81 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Bradley International Airport (725080-14740), 32 mi NE of the city center, 169 ft (102 ft lower than the city). Hourly observations, 1991-2020.
  • Not available for this location: cloud cover (no station close enough or similar enough in elevation).