Climateby Month

Leavenworth, WA weather in December

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

December in Leavenworth: cold and snowy. Highs 34°F, lows 20°F, about 14 days with rain or snow and about 32.4 in of snow. This is the depth of winter in Leavenworth. Pack for serious cold.

Normal high
34°F
Normal low
20°F
Wet days
14
4.5 in total
Snowfall
32.4 in
snow on the ground 9 days

How December changes from start to finish

Normal values at the start and end of December
December 1December 31
Normal high37°F32°F
Normal low23°F19°F
Chance of a wet day47%46%
Sunrise / sunset7:29 am / 4:13 pm7:50 am / 4:20 pm
Daylight8.7 h8.5 h

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

A typical December day

  1. 6 am28°Fdew point 24°F
  2. 9 am28°Fdew point 25°F
  3. Noon31°Fdew point 26°F
  4. 3 pm33°Fdew point 26°F
  5. 6 pm30°Fdew point 25°F
  6. 9 pm29°Fdew point 25°F

NOAA hourly normals (local standard time) from Wenatchee Pangborn Airport (26 mi away); average wind 3 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 snow14 of 31
  • Notable rainat least 0.10 in11 of 31
  • Freezing nightslow 32°F or below30 of 31
  • Snow on the groundsnow depth 1 in or more9 of 31

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

Rain and snow in December

Normal precipitation is 4.5 in; a dry December brings about 2.7 in and a wet one about 5.9 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more. Normal snowfall is 32.4 in, with about 8 days of an inch or more.

How December varies from year to year

  • Warmest December, 1991-20201991: average high 39°F
  • Coolest December1996: average high 29°F
  • Wettest December1996: 7.8 in
  • Driest December2011: 0.9 in
  • Highest reading55°F (December 17, 1998)
  • Lowest reading-9°F (December 7, 2013)

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

December compared with November and January

NovemberDecemberJanuary
Normal high44°F34°F34°F
Normal low26°F20°F19°F
Wet days141414
Comfortable days000
Daylight9.3 h8.5 h8.9 h

Highs change by -10°F from November and 0°F into January.

Nearby alternatives in December

How Leavenworth ranks in December

  • Normal high348th warmest of 378 cities; 9th of 9 in Washington
  • Wet days340th driest of 378
  • Comfortable days330th most of 340

What to pack for Leavenworth in December

  • A warm jacket – lows near 20°F, highs near 34°F
  • A rain jacket or umbrella – rain or snow on about 14 days
  • Waterproof boots – about 32.4 in of snow in a typical year
  • A hat and gloves – about 30 freezing nights

Heating and cooling

December has 1184 heating degree days and 0 cooling degree days (base 65°F), 16% of the year's total heating and cooling demand.

Questions

How cold is Leavenworth in December?

The normal high is 34°F and the normal low is 20°F. From 1991 to 2020 the coldest December reading was -9°F (December 7, 2013).

Does it rain a lot in Leavenworth in December?

About 14 days in December have at least 0.01 in of precipitation, and the normal total is 4.5 in. The wettest December in 1991-2020 was in 1996 (7.8 in); the driest was in 2011 (0.9 in).

Does it snow in Leavenworth in December?

Yes. Normal snowfall in December is 32.4 in, and snow covers the ground on about 9 days.

Is December a good time to visit Leavenworth?

December ranks 12th of 12 months on our comfort score for Leavenworth (20 out of 100). It has almost no comfortable days. The best months are May and June.

Where the numbers come from

  • Temperature, rain, snowfall and frost dates: Leavenworth 3 S (USC00454572), 2.7 mi SSW of the city center, 1,128 ft . NOAA normals and daily records, 1991-2020.
  • Snow depth: Wenatchee (USC00459074), 20 mi SE of the city center, 626 ft (545 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour: Wenatchee Pangborn Airport (USW00094239), 26 mi ESE of the city center, 1,229 ft (58 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Pangborn Memorial Airport (727825-94239), 26 mi ESE of the city center, 1,239 ft (68 ft higher than the city). Hourly observations, 1991-2020.
  • Not available for this location: cloud cover (no station close enough or similar enough in elevation).