Climateby Month

Sister Bay, WI weather in January

NOAA 1991-2020 normals and daily records · Sister Bay all year

In January, Sister Bay sees highs around 26°F and lows around 11°F: very cold and snowy. There are about 10 days with rain or snow. Snowfall averages about 15.0 in. It is one of the coldest months in Sister Bay. Dress for deep cold.

Normal high
26°F
Normal low
11°F
Wet days
10
1.6 in total
Snowfall
15.0 in
snow on the ground 24 days

How January changes from start to finish

Normal values at the start and end of January
January 1January 31
Normal high28°F25°F
Normal low15°F9°F
Chance of a wet day32%30%
Sunrise / sunset7:27 am / 4:16 pm7:09 am / 4:54 pm
Daylight8.8 h9.7 h

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

What kind of days to expect

  • Comfortable dayshigh 65-80°F (temperature only: no humidity station nearby)0 of 31
  • Beach dayshigh 80-95°F, under 0.05 in of rain (temperature and rain only)0 of 31
  • Hot dayshigh 90°F or more0 of 31
  • Wet daysat least 0.01 in of rain or melted snow10 of 31
  • Notable rainat least 0.10 in5 of 31
  • Freezing nightslow 32°F or below30 of 31
  • Snow on the groundsnow depth 1 in or more24 of 31

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

Rain and snow in January

Normal precipitation is 1.6 in; a dry January brings about 0.8 in and a wet one about 2.0 in (25th and 75th percentiles). About 1 day brings half an inch or more. Normal snowfall is 15.0 in, with about 6 days of an inch or more.

How January varies from year to year

  • Warmest January, 1991-20202006: average high 33°F
  • Coolest January2014: average high 17°F
  • Wettest January1996: 3.5 in
  • Driest January2003: 0.4 in
  • Highest reading49°F (January 10, 2002)
  • Lowest reading-24°F (January 19, 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 high32°F26°F28°F
Normal low19°F11°F11°F
Wet days10108
Comfortable days000
Daylight8.8 h9.2 h10.4 h

Highs change by -6°F from December and +2°F into February.

Nearby alternatives in January

How Sister Bay ranks in January

  • Normal high365th warmest of 378 cities; 4th of 5 in Wisconsin
  • Wet days215th driest of 378

What to pack for Sister Bay in January

  • A warm jacket – lows near 11°F, highs near 26°F
  • A rain jacket or umbrella – rain or snow on about 10 days
  • Waterproof boots – snow on the ground on about 24 days
  • A hat and gloves – about 30 freezing nights

Heating and cooling

January has 1449 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 Sister Bay in January?

The normal high is 26°F and the normal low is 11°F. From 1991 to 2020 the coldest January reading was -24°F (January 19, 1994).

Does it rain a lot in Sister Bay in January?

About 10 days in January have at least 0.01 in of precipitation, and the normal total is 1.6 in. The wettest January in 1991-2020 was in 1996 (3.5 in); the driest was in 2003 (0.4 in).

Does it snow in Sister Bay in January?

Yes. Normal snowfall in January is 15.0 in, and snow covers the ground on about 24 days.

Is January a good time to visit Sister Bay?

January ranks 12th of 12 months on our comfort score for Sister Bay (22 out of 100). It has almost no comfortable days (judged by temperature only). The best months are June, July and August.

Where the numbers come from

  • Temperature, rain and snowfall: Washington Is (USC00478905), 16 mi NE of the city center, 686 ft (73 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Snow depth: Sturgeon Bay Exp Farm (USC00478267), 24 mi SSW of the city center, 699 ft (86 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Frost dates: Ephraim 1NE-Wwtp (USC00472626), 2.0 mi SW of the city center, 733 ft (120 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Not available for this location: humidity and wind by hour, cloud cover and daily humidity and wind (no station close enough or similar enough in elevation).