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Climate · Winthrop

Winthrop in December

Cold and wet, as the days hold steady.

Typical weather, averaged over 30 years

December in Winthrop is cold: highs near 33°F, lows near 17°F. Rain or snow falls on about four days a week, more often as the month goes on, and daylight holds at about 8 hours 22 minutes.December in Winthrop is cold: highs near 1°C, lows near -8°C. Rain or snow falls on about four days a week, more often as the month goes on, and daylight holds at about 8 hours 22 minutes.

High
33°F1°Caverage
Low
17°F-8°Caverage
Wet days
4a week · 52% of days
Daylight
8h 22mon average

Is December a good time to visit Winthrop?

December sits outside Winthrop's best months, which run from June to September. Expect cold days and rain or snow on about four days a week.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How December sits in the year

week by week

Temperature

Highs near 33°F in December, against 33°F to 85°F through the year.Highs near 1°C in December, against 1°C to 29°C through the year.

Chance of a wet day

52% of days in December, against 15% to 52% through the year.

Cloud cover

69% cover in December, against 32% to 70% through the year.

Daylight

8h 22m in December, against 8h 22m to 16h 03m through the year.

Week by week, lightly smoothed, with December shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. November42°6°low 25°low -4°4 wet days a weekRain on about four days a week.
  2. December33°1°low 17°low -8°4 wet days a weekRain on about four days a week.
  3. January33°1°low 18°low -8°4 wet days a weekRain on about four days a week.

Where Winthrop sits, in December

America/Los Angeles
this place
typical high in December 40°F4°C95°F35°C
Sunrise, mid-December
7:46 AMsets 4:06 PM
Above the sea
914 mupland
Latitude
48.5°Nnorthern hemisphere
Nearest of ours
Adams338 km south-east

The land around Winthrop, shaded by its typical high in December, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in United States in December

high · low · wet days
See December on the planning mapThe whole year in Winthrop

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Winthrop. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match.Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match. Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.