Climate Insights for Colfax

Whitman County, Washington, United States

Hottest
July
31°C peak
Coldest
December
-2°C low
Wettest
December
89mm rain
Best to Visit
June, July, August
Mild temps & low rain

Climate Overview

The climate in Colfax is temperate. The average annual temperature is 11°C and approximately 588mm of precipitation falls per year. December is the wettest month, receiving around 89mm of rainfall. Colfax is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are December, January, February, when temperatures can drop to -2°C. Snowfall occurs from January to December, with around 88cm accumulating over the season.

Temperature

-10° 10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 3° Average: 0° Min: -2° Feb Max: 6° Average: 2° Min: -1° Mar Max: 11° Average: 6° Min: 1° Apr Max: 15° Average: 9° Min: 4° May Max: 21° Average: 14° Min: 9° Jun Max: 26° Average: 19° Min: 12° Jul Max: 31° Average: 24° Min: 16° Aug Max: 31° Average: 23° Min: 16° Sep Max: 25° Average: 17° Min: 11° Oct Max: 17° Average: 11° Min: 6° Nov Max: 8° Average: 4° Min: 1° Dec Max: 3° Average: 0° Min: -2°
Max
Average
Min

Temperatures in Colfax vary considerably across the year, with a 33°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 31°C and the mean temperature sits around 24°C. The coldest month is December, when overnight lows fall to -2°C and the daily average is 0°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 7°C shift in average temperatures.

Precipitation

0mm 25mm 50mm 75mm 100mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 71mm Snow: 18mm Feb Precipitation: 70mm Snow: 22mm Mar Precipitation: 65mm Snow: 8mm Apr Precipitation: 49mm Snow: 4mm May Precipitation: 45mm Snow: 0mm Jun Precipitation: 25mm Snow: 0mm Jul Precipitation: 5mm Snow: 0mm Aug Precipitation: 9mm Snow: 0mm Sep Precipitation: 21mm Snow: 0mm Oct Precipitation: 59mm Snow: 1mm Nov Precipitation: 81mm Snow: 7mm Dec Precipitation: 89mm Snow: 29mm
Precipitation
Snow

Colfax is a relatively dry area, receiving approximately 588mm of precipitation annually, which averages out to around 49mm per month. The wettest month is December, averaging 89mm of rainfall. November and January also tend to see above-average precipitation. The driest month is July, with just 5mm. That's 84mm less than December, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 88cm accumulating over the season. December typically sees the most snow at around 29cm.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 17km/h Feb Wind Speed: 18km/h Mar Wind Speed: 18km/h Apr Wind Speed: 20km/h May Wind Speed: 17km/h Jun Wind Speed: 17km/h Jul Wind Speed: 16km/h Aug Wind Speed: 16km/h Sep Wind Speed: 16km/h Oct Wind Speed: 17km/h Nov Wind Speed: 17km/h Dec Wind Speed: 16km/h
Wind Speed

Colfax is mildly breezy, with an average annual wind speed of 17km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 20km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 16km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

89 days until Summer

It is currently spring in Colfax, which began on March 20, 2026. Colfax is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 31°C, while the coldest stretch bottoms out in December near -2°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 1 to 21°C. Precipitation is moderate at around 159mm for the season, averaging 53mm per month. Winds are moderate at around 18km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 12 to 31°C. Precipitation is minimal, with only around 39mm for the entire season. Winds are moderate at around 17km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 1 to 25°C. Precipitation is moderate at around 160mm for the season, averaging 53mm per month. Expect around 8cm of snow accumulation during this period. Winds are moderate at around 17km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from -2 to 6°C. Precipitation is moderate at around 230mm for the season, averaging 77mm per month. Expect around 68cm of snow accumulation during this period. Winds are moderate at around 17km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.

Best Time to Visit

Jan
Feb
Mar
Apr
May 14°
Jun 19°
Jul 24°
Aug 23°
Sep 17°
Oct 11°
Nov
Dec

The best time to visit Colfax is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 15mm per month. By contrast, December can be quite cold with temperatures dropping to -2°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

Monthly Climate Data

The table below shows monthly climate averages for Colfax based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
-2 °C
3 °C
17 km/h
71 mm
18 cm
Feb
-1 °C
6 °C
18 km/h
70 mm
22 cm
Mar Current
1 °C
11 °C
18 km/h
65 mm
8 cm
Apr
4 °C
15 °C
20 km/h
49 mm
4 cm
May
9 °C
21 °C
17 km/h
45 mm
0 cm
Jun
12 °C
26 °C
17 km/h
25 mm
0 cm
Jul
16 °C
31 °C
16 km/h
5 mm
0 cm
Aug
16 °C
31 °C
16 km/h
9 mm
0 cm
Sep
11 °C
25 °C
16 km/h
21 mm
0 cm
Oct
6 °C
17 °C
17 km/h
59 mm
1 cm
Nov
1 °C
8 °C
17 km/h
81 mm
7 cm
Dec
-2 °C
3 °C
16 km/h
89 mm
29 cm
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