PlainClimate
2026 data Public-data reference. official source

Spokane, WA Climate

Temperature, precipitation, and comfort score from NOAA NCEI 1991-2020 normals →

30-year climate normals from 3 weather stations (1991-2020).

Spokane, Washington has an average annual temperature of 49°F and a climate comfort score of 52/100 (Moderate). Annual precipitation totals 16.4", including 45.4" of snow. Based on NOAA 30-year normals (1991–2020).

Avg Temperature

49°F (9°C)

Avg High

58°F

Avg Low

39°F

Annual Precip

16.4"

Annual Snow

45.4"

Comfort Score

52/100

Moderate

Climate Comfort Score

52/100

Moderate

Avg Annual Temperature

49°F

30-year mean (NOAA NCEI)

Annual Precipitation

16.4"

Plus 45.4" of snow

Comfort score vs national 100-point ceiling (Spokane) 52.0%
National median (≈55)

PlainClimate composite — temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Spokane area.

Warming context for Spokane

Methodology

How the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Spokane captures average conditions across the spread shown — the most recent decade is warmer than the 30-year mean.

Warming context — U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • United States land mean (NOAA NCEI) +0.11 °C/decade
  • Global anomaly (NASA GISTEMP) +0.11 °C/decade
  • Paris Agreement thresholds 1.5°C / 2.0°C
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 35°F (1°C) 25°F (-4°C) 30°F (-1°C)
February 40°F (4°C) 26°F (-3°C) 33°F (0°C)
March 49°F (9°C) 32°F (0°C) 40°F (4°C)
April 57°F (14°C) 37°F (3°C) 47°F (8°C)
May 67°F (19°C) 45°F (7°C) 56°F (13°C)
June 74°F (23°C) 51°F (10°C) 62°F (17°C)
July 84°F (29°C) 58°F (14°C) 71°F (22°C)
August 84°F (29°C) 57°F (14°C) 70°F (21°C)
September 74°F (23°C) 49°F (9°C) 61°F (16°C)
October 58°F (14°C) 38°F (3°C) 48°F (9°C)
November 42°F (6°C) 30°F (-1°C) 36°F (2°C)
December 34°F (1°C) 24°F (-4°C) 29°F (-2°C)

Monthly Precipitation

Average monthly rainfall and snowfall

January 2.0"

Snow: 12.3"

14.2 days with precipitation

February 1.4"

Snow: 7.8"

10.9 days with precipitation

March 1.8"

Snow: 3.9"

11.8 days with precipitation

April 1.3"

Snow: 0.7"

10.3 days with precipitation

May 1.6"

Snow: 0.1"

9.7 days with precipitation

June 1.2"

7.8 days with precipitation

July 0.4"

4.0 days with precipitation

August 0.5"

3.2 days with precipitation

September 0.6"

Snow: 0.1"

4.7 days with precipitation

October 1.4"

Snow: 0.5"

8.9 days with precipitation

November 2.1"

Snow: 6.2"

13.4 days with precipitation

December 2.3"

Snow: 13.8"

13.8 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

October 12

50% probability date

Last Spring Freeze

April 26

50% probability date

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

6,463

Higher = more heating needed

Cooling Degree Days

515

Higher = more cooling needed

Warmest Month

July

Coldest Month

December

Humidity & Wind

Monthly averages from hourly observations

Month Humidity Wind (mph)
January 84% 8.0
February 73% 8.7
March 65% 9.8
April 54% 9.9
May 53% 9.0
June 47% 8.6
July 37% 8.0
August 43% 7.9
September 53% 7.8
October 75% 7.9
November 84% 8.1
December 87% 7.9

Related Data

Climate Guides

Climate Insight: Spokane, WA

The NOAA 1991–2020 climate normals describe Spokane, Washington as a location with an annual average temperature of 49°F, ranging from a mean daily high of 58°F to a mean daily low of 39°F. July is typically the warmest month of the year, while December is the coldest. These thirty-year averages, computed from 3 weather stations, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.

Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Spokane receives roughly 16.4 inches of precipitation each year, with 45.4 inches typically falling as snow. Growing-season length varies with elevation and microclimate, with the last spring freeze near April 26 and the first fall freeze near October 12. For energy use, 6,463 heating degree days and 515 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Spokane scores 52/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows — shoulder seasons for mild highs and lows, peak summer for July-driven heat, or deep winter for December-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.

Frequently Asked Questions

What is the average temperature in Spokane, WA?
The average annual temperature in Spokane, Washington is 49°F. The warmest month averages 84°F (29°C) and the coldest averages 24°F (-4°C).
How much rain does Spokane get?
Spokane receives 16.4 inches of precipitation annually, including 45.4 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Spokane?
Spokane has a climate comfort score of 52/100 (Moderate). This score considers temperature mildness, humidity, precipitation, and extreme weather frequency.
When is the growing season in Spokane?
Growing season data is not available for Spokane.
How much energy does heating and cooling require in Spokane?
Spokane has 6,463 heating degree days and 515 cooling degree days annually. Higher heating degree days indicate greater winter energy demand, while higher cooling degree days indicate greater summer cooling needs.
Where does this Spokane climate data come from?
All climate data comes from NOAA U.S. Climate Normals v1.0.1, covering the 30-year period from 1991 to 2020. Data is collected from 3 weather stations. These 30-year averages are the standard reference for typical weather conditions.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00024157. For informational purposes only.

Related

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial