Climate Comfort Score
58/100
Moderate
NOAA 1991–2020 normals 54°F annual avg Public-domain federal data
Walla Walla Rgnl, WA Climate
Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →
- 54°F
- Avg annual temp
- 58/100
- Comfort score
- 18.7"
- Annual precip
- 218d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Walla Walla Rgnl
Walla Walla Rgnl, Washington averages 54°F a year and scores 58/100 on the comfort index - moderate, milder than 38% of U.S. cities.
- 54°F
- annual average temperature (NOAA normal)
- 58/100
- comfort score, milder than 38% of U.S. cities
- 18.7"
- annual precipitation · 7" snow
- 218 days
- frost-free growing season
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
54°F (12°C)
Avg High
64°F
Avg Low
45°F
Annual Precip
18.7"
Annual Snow
6.5"
Comfort Score
58/100
Moderate
Avg Annual Temperature
54°F
30-year mean (NOAA NCEI)
Annual Precipitation
18.7"
Plus 6.5" of snow
Comfort score vs national 100-point ceiling (Walla Walla Rgnl) 58.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Walla Walla Rgnl area.
How Walla Walla Rgnl compares to every U.S. city
Walla Walla Rgnl's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
58 Top 62% higher than 38% of 6,915 US cities
Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Warming context for Walla Walla Rgnl
MethodologyZooming out from Walla Walla Rgnl's own normal, the chart below shows how the U.S. land temperature anomaly has tracked the global mean since 1900 - the most recent decade sits warmer than the 30-year mean shown here.
- 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 42°F (5°C) | 31°F (-1°C) | 36°F (2°C) | 2.1" | 1.0" | 17.3 | 0.0 |
| February | 47°F (8°C) | 33°F (0°C) | 40°F (4°C) | 1.6" | 2.2" | 13.4 | 0.0 |
| March | 56°F (13°C) | 38°F (3°C) | 47°F (8°C) | 2.1" | 0.2" | 5.6 | 0.0 |
| April | 63°F (17°C) | 43°F (6°C) | 53°F (11°C) | 2.0" | 0.0" | 1.3 | 0.0 |
| May | 71°F (22°C) | 49°F (10°C) | 60°F (16°C) | 2.1" | 0.0" | 0.1 | 1.3 |
| June | 79°F (26°C) | 55°F (13°C) | 67°F (19°C) | 1.2" | 0.0" | 0.0 | 4.6 |
| July | 90°F (32°C) | 62°F (17°C) | 76°F (25°C) | 0.5" | 0.0" | 0.0 | 17.5 |
| August | 89°F (31°C) | 62°F (17°C) | 75°F (24°C) | 0.4" | 0.0" | 0.0 | 15.8 |
| September | 79°F (26°C) | 54°F (12°C) | 66°F (19°C) | 0.6" | 0.0" | 0.0 | 3.3 |
| October | 63°F (17°C) | 44°F (7°C) | 54°F (12°C) | 1.7" | 0.1" | 1.9 | 0.0 |
| November | 49°F (10°C) | 36°F (2°C) | 42°F (6°C) | 2.3" | 0.3" | 10.3 | 0.0 |
| December | 41°F (5°C) | 30°F (-1°C) | 36°F (2°C) | 2.2" | 2.7" | 20.0 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 2.1"
Snow: 1.0"
13.3 days with precipitation
February 1.6"
Snow: 2.2"
11.2 days with precipitation
March 2.1"
Snow: 0.2"
12.1 days with precipitation
April 2.0"
11.1 days with precipitation
May 2.1"
9.8 days with precipitation
June 1.2"
7.1 days with precipitation
July 0.5"
2.7 days with precipitation
August 0.4"
2.5 days with precipitation
September 0.6"
3.8 days with precipitation
October 1.7"
Snow: 0.1"
8.8 days with precipitation
November 2.3"
Snow: 0.3"
13.1 days with precipitation
December 2.2"
Snow: 2.7"
13.6 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 31
50% probability date
Last Spring Freeze
March 27
50% probability date
Growing Season
218 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,798
Higher = more heating needed
Cooling Degree Days
936
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Humidity & Wind
Monthly averages from hourly observations
| Month | Humidity | Wind (mph) | Clear Sky % | Overcast % |
|---|---|---|---|---|
| January | 77% | 7.3 | N/A | N/A |
| February | 68% | 8.2 | 39% | 37% |
| March | 60% | 9.3 | 40% | 30% |
| April | 55% | 9.0 | 47% | 23% |
| May | 53% | 8.5 | 52% | 20% |
| June | 42% | 8.5 | 69% | 8% |
| July | 33% | 8.4 | 82% | 4% |
| August | 39% | 7.9 | 74% | 6% |
| September | 50% | 7.4 | 66% | 12% |
| October | 69% | 7.1 | 50% | 29% |
| November | 77% | 7.5 | N/A | N/A |
| December | 80% | 7.0 | N/A | N/A |
What Walla Walla Rgnl's climate means for you
Walla Walla Rgnl runs 54°F a year - peaking in July, coldest in December.
- Gardeners get about 218 frost-free days, with the last spring freeze near March 27 - plan the planting calendar around it, not the regional average.
- Energy bills track 4,798 heating and 936 cooling degree days a year, higher means the furnace or AC runs more.
- Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings
These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.
Climate Guides
Climate Insight: Walla Walla Rgnl, WA
An annual average temperature of 54°F, ranging from a mean daily high of 64°F to a mean daily low of 45°F is what the NOAA 1991–2020 climate normals report for Walla Walla Rgnl, Washington. July is typically the warmest month of the year, while December is the coldest. That baseline comes from station USW00024160 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.
Beyond temperature, Walla Walla Rgnl averages 18.7 inches of precipitation annually, with 6.5 inches typically falling as snow - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 218 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near March 27 and the first fall freeze near October 31. Turning to energy use, 4,798 heating degree days and 936 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Walla Walla Rgnl scores 58/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. For planning purposes, look to the monthly tables above: shoulder seasons bring the mildest highs and lows, summer brings July-driven heat, and deep winter brings December-driven cold. Treat every figure here as a thirty-year average rather than a forecast - individual years routinely run warmer, cooler, wetter, or drier than the normal.
Frequently Asked Questions
What is the average temperature in Walla Walla Rgnl, WA? ▼
The average annual temperature in Walla Walla Rgnl, Washington is 54°F. The warmest month averages 90°F (32°C) and the coldest averages 30°F (-1°C).
How much rain does Walla Walla Rgnl get? ▼
Walla Walla Rgnl receives 18.7 inches of precipitation annually, including 6.5 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Walla Walla Rgnl? ▼
Walla Walla Rgnl has a climate comfort score of 58/100 (Moderate), milder than 38% of U.S. cities in the PlainClimate database.
When is the growing season in Walla Walla Rgnl? ▼
Walla Walla Rgnl has approximately 218 frost-free days per year, with the last spring freeze around March 27 and the first fall freeze around October 31.
How much energy does heating and cooling require in Walla Walla Rgnl? ▼
Walla Walla Rgnl has 4,798 heating degree days and 936 cooling degree days annually, a heating-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Walla Walla Rgnl climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00024160 near Walla Walla Rgnl.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00024160. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial
Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.