Pullman, United States — Weather in December 2026

Climate Overview

Pullman, United States in December has cold conditions, with highs averaging around 3.2°C (38°F). Rain falls on about 15 days this month, totalling around 92 mm.

This month falls at the beginning of Winter. Cold conditions dominate the month.

Daily highs in December gradually drop from around 4°C (39°F) at the start to 2°C (36°F) by month's end.

Rainfall is heaviest during the last third of the month, while the first third tends to be drier.

The warmest days tend to fall around the 1th, averaging 4.3°C (40°F).

Compared to November, this month is about 5°C cooler with 2 more rainy days.

Monthly December Averages

Temperature

3°C / -3°C

Feels Like

-1°C / -7°C

Rain

15 days · 92 mm

Sunshine

4.5h / day

Humidity

82% — Very Humid

Wind

16 km/h

Wind Direction

SE (143°)

Gusts

33 km/h

Daylight

8.6 h

Cloud Cover

73%

Clear Sky Days

1.8

UV Index

1.3 — Low

Dew Point

-3°C — Dry

Moon Phase

Waxing Crescent · 31%

Snow Days

12 days · 26.5 cm

Frost Days

23 days

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

HighLow

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 07:28

Daylight 8.6h

Sunset 16:02

What to Expect

Cold daytime highs of 3°C (38°F) mean shorter outdoor excursions with warming breaks. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Wet weather can spread across much of the day, so it is best to keep outdoor plans flexible.

3 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

1days (4 mm) Excellent

2days (11 mm) Excellent

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	3°C / -4°C	-1°C / -8°C	13days (70 mm) Wet	5.2h Fair	82% Humid	1.7 Low	Poor	View Details
February	5°C / -3°C	1°C / -8°C	13days (74 mm) Wet	6.3h Fair	77% Humid	2.5 Moderate	Poor	View Details
March	10°C / -1°C	6°C / -5°C	12days (66 mm) Wet	8.5h Good	71% Muggy	4 Moderate	Poor	View Details
April	14°C / 3°C	11°C / -1°C	10days (49 mm) Wet	10.6h Excellent	62% Muggy	5.6 High	Fair	View Details
May	20°C / 8°C	18°C / 5°C	7days (43 mm) Good	12.1h Excellent	59% Moderate	6.6 High	Good	View Details
June best	24°C / 12°C	23°C / 10°C	4days (25 mm) Good	13h Excellent	50% Moderate	7.1 Very High	Excellent	View Details
July best	30°C / 16°C	29°C / 14°C	1days (4 mm) Excellent	13.9h Excellent	36% Comfortable	7.4 Very High	Excellent	View Details
August best	30°C / 16°C	28°C / 15°C	2days (11 mm) Excellent	12.3h Excellent	39% Comfortable	6.5 High	Excellent	View Details
September best	25°C / 12°C	22°C / 10°C	4days (20 mm) Good	10.4h Excellent	49% Moderate	5.2 High	Excellent	View Details
October	16°C / 5°C	13°C / 2°C	9days (61 mm) Wet	8.3h Good	64% Muggy	3.6 Moderate	Fair	View Details
November	8°C / 1°C	5°C / -3°C	13days (81 mm) Wet	5.9h Fair	77% Humid	1.9 Low	Poor	View Details
December	3°C / -3°C	-1°C / -7°C	15days (92 mm) Wet	4.5h Fair	82% Humid	1.3 Low	Poor	View Details

What to Wear

Full winter gear is a must — insulated coat, thermal base layers, warm hat, gloves, and waterproof boots.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

Warm coatThermal base layersScarf & glovesUmbrellaWaterproof jacketWaterproof shoes

Frequently Asked Questions

Expand all

Is December a good time to visit Pullman?

December is typically poor for visiting Pullman, with average highs of 3°C (38°F) and around 15 rainy days. Pullman, United States in December has cold conditions, with highs averaging around 3.2°C (38°F). Rain falls on about 15

Does it rain a lot in Pullman in December?

Pullman typically sees around 15 rainy days in December with 92 mm (3.6 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Pullman in December?

Yes, nights in Pullman during December are cold, averaging -3°C (27°F). Pack warm layers and a coat for evenings.

What should I pack for Pullman in December?

With highs of 3°C (38°F) and lows of -3°C (27°F) in December, we recommend: Warm coat, Thermal base layers, Scarf & gloves, Umbrella, Waterproof jacket. Comfortable walking shoes are essential.

Is December among the best months weather-wise in Pullman?

December is not the most favourable month weather-wise in Pullman. Consider visiting during months with milder temperatures or less rainfall for a better experience.

What is the UV index in Pullman in December?

The average UV index in Pullman during December is 1 (low). No special sun protection is needed.

How many hours of daylight are there in Pullman in December?

Pullman gets approximately 9 hours of daylight per day in December, with around 5 hours of sunshine.

Does it snow in Pullman in December?

Yes, Pullman typically sees around 12 snow days in December with roughly 27 cm (10 in) of snowfall.

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