The Dalles Muni, WA Climate: Temperature & Rain by Month
Average temperature and precipitation from NOAA NCEI 1991–2020 normals →, with a derived climate comfort score
30-year climate normals (1991-2020) from The Dalles Muni's primary NOAA station, THE DALLES MUNI AP.
The climate verdict for The Dalles Muni
Dryness leads the climate profile for The Dalles Muni, Washington, with 13.7 inches of precipitation a year. NOAA records an annual average of 54°F. Its climate comfort score of 56/100 (moderate) lands mid-pack nationally, exceeding 36% of station-mapped location scores.
- 54°F
- yearly average temperature, NOAA normal
- 56/100
- comfort score, above 36% of station-mapped location scores
- 13.7"
- yearly precipitation total
- 198 days
- growing season, frost-free days
The Dalles Muni: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00024219 · The Dalles Muni, WA 54°F mean · 13.7" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 54°F
- RANK-MID #3,979
- PHOTO-FINISH ≈ Marshall
- PRCP-DRY 13.7"
- SWING-MID 39°F
- COMF-MID 56/100
- LOAD-HEAT 4,677 HDD
- STN-1 USW00024219
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Marshall, NC (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every WA station list.
- Hot Saint Johns, AZ 55°F
- Near Big Stone Gap, VA 55°F
- The Dalles (this station) 54°F
- Cold Pickett State P…, TN 54°F
- Near Marshall, NC 54°F
Climate Living Index · The Dalles Muni
The Dalles Muni: 59/100 · grade C
The Dalles Muni publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for The Dalles Muni, not an official NOAA rating. Rankings still use Comfort Score 56/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 90 calendar days | 79/100 · B |
| Frost-free season | 198 days/year | 63/100 · C |
| Annual temperature balance | 54.4°F · 13.1° from 67.5°F | 57/100 · C |
| Precipitation balance | 13.7 in · 21.4 from 35 in | 24/100 · F |
The Dalles Muni · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
The Dalles Muni is a temperate Köppen climate: Csa
Coldest-month mean 36.2°F and warmest-month mean 74.7°F place this station in temperate, dry-summer, hot summer climates (Csa). Class Csa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, dry-summer, hot summer.
- Köppen code
- Csa
- Group
- Temperate
- Warmest month
- 74.7°F
- Coldest month
- 36.2°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where The Dalles Muni sits across the climate record
Three NOAA fields for The Dalles Muni's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 58th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Drier than 86%
- The Dalles Muni's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 71%
- Warmest-to-coldest month gap for The Dalles Muni is compact versus 6,861 complete station-years.
How The Dalles Muni compares across U.S. station-mapped locations
The Dalles Muni's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
56 36th percentile score exceeds 36% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). This entry sits in this band.
- 60–70: 1,236 station-mapped locations (20%). Above this entry.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
The Dalles Muni's measured station temperature trend
MethodologyAcross 72 complete annual observations from 1949 to 2025, THE DALLES MUNI AP warmed at a fitted rate of 0.18°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- The Dalles Muni primary station fitted change +0.18 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 42°F (6°C) | 31°F (-1°C) | 37°F (3°C) | 2.4" | 16.2 | 0.0 |
| February | 48°F (9°C) | 32°F (0°C) | 40°F (5°C) | 1.6" | 14.7 | 0.0 |
| March | 57°F (14°C) | 36°F (2°C) | 46°F (8°C) | 1.2" | 8.8 | 0.0 |
| April | 64°F (18°C) | 42°F (5°C) | 53°F (12°C) | 0.8" | 2.3 | 0.1 |
| May | 74°F (23°C) | 49°F (9°C) | 61°F (16°C) | 0.8" | 0.1 | 2.3 |
| June | 79°F (26°C) | 55°F (13°C) | 67°F (19°C) | 0.5" | 0.0 | 4.8 |
| July | 88°F (31°C) | 61°F (16°C) | 75°F (24°C) | 0.2" | 0.0 | 14.9 |
| August | 88°F (31°C) | 60°F (16°C) | 74°F (23°C) | 0.2" | 0.0 | 15.0 |
| September | 80°F (27°C) | 52°F (11°C) | 66°F (19°C) | 0.3" | 0.0 | 5.9 |
| October | 66°F (19°C) | 43°F (6°C) | 54°F (12°C) | 1.1" | 2.7 | 0.1 |
| November | 50°F (10°C) | 35°F (2°C) | 43°F (6°C) | 2.0" | 9.9 | 0.0 |
| December | 41°F (5°C) | 31°F (-1°C) | 36°F (2°C) | 2.7" | 16.9 | 0.0 |
The year, day by day
The Dalles Muni works both ends of the calendar. Normal highs climb to 91°F by July 28 and hold at or above 90°F on 16 dates, then normal lows drop to freezing or below on 74 dates, bottoming at 30°F around December 27.
When the heat sits
Normal highs reach 90°F from July 21 through August 5, covering 16 dates. The broader mild season, normal highs of 70°F or more, runs May 3 to October 8.
This counts calendar dates whose 1991–2020 normal high reaches 90°F. It is a smaller number than the 90°F+ day counts in the monthly table above, which measure how often the threshold was actually crossed in a typical year. A date can average 88°F and still exceed 90°F in half of all years.
The freezing stretch
The normal low stays at or below 32°F into February 16, then returns to freezing around December 5, covering 74 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is January 1, when 46% of years recorded at least a hundredth of an inch. The driest is July 26 at 5%. Summed across the calendar, that is about 96 wet dates a year.
The widest day
September 10 carries the biggest normal gap between afternoon and dawn, 29°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for The Dalles Muni.
Where The Dalles Muni Stands Nationally
A drier-than-most normal water year — around 14 inches, below what four out of five ranked stations collect.
The Dalles Muni earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall
14.1 days with precipitation
11.3 days with precipitation
10.8 days with precipitation
7.9 days with precipitation
6.4 days with precipitation
3.8 days with precipitation
1.5 days with precipitation
1.7 days with precipitation
2.7 days with precipitation
8.3 days with precipitation
13.1 days with precipitation
13.9 days with precipitation
The Dalles Muni's wet season runs through the cold months
December, January and February carry 49% of the year's precipitation here, while June through August contribute 6%. That is the cool-season-dominant pattern of the West Coast and the higher inland West, where storm tracks swing south in winter and summer turns dry; the thermometer meanwhile shows a 38.5°F seasonal spread.
- Wettest month
- December, 2.7"
- Driest month
- August, 0.2"
- Wettest three months
- December, January, November (52% of the year)
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A cool-season label means the December-February share reaches 35%. Where snow falls, the monthly figures above report liquid-equivalent precipitation, so a wet winter month is not necessarily a rainy one.
The Dalles Muni is dry, and what does fall arrives gently
Only about 96 days a year record measurable precipitation here, 26% of the calendar, and they carry 13.7" between them. At roughly 0.14 inches on an average wet day, this is not the damp drizzle of a marine climate; it is an arid record in which precipitation is both uncommon and light when it appears.
The wettest month by count is January at about 14 wet days; the driest is July at about 2.
A low per-event average in a dry record is a statement about typical days only. Arid regions can still take a large share of a year's total from a single convective storm, which a normal cannot show.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, not the extremes within it.
Frost Dates & Growing Season
First Fall Freeze
October 26
50% probability date
Last Spring Freeze
April 11
50% probability date
Growing Season
198 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,677
Higher = more heating needed
Cooling Degree Days
830
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside WA closest to The Dalles Muni on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (54°F here).
- Arlington, OR 54°F · 0.0°F off
- Bent Creek, NC 54°F · 0.0°F off
- Bloomfield, NM 54°F · 0.0°F off
- Charleston, WV 54°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (13.7" here), excluding temperature-peer places.
- Fort Stockton, TX 13.7" · 0.0" off
- Maeser, UT 13.6" · 0.0" off
- Torrance, CA 13.6" · 0.0" off
- Grandfalls, TX 13.7" · 0.0" off
Scarce-water calendar
Where The Dalles Muni's limited precipitation lands
heating led · dry · mid swing
The Dalles Muni's energy balance leans toward cold weather: 4,677 annual heating degree days against 830 for cooling. Its 38.5°F seasonal range still makes the monthly rows more useful than the annual average alone.
The Dalles Muni's frost-free season lasts about 198 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
July and December mark the typical warm and cold ends of the calendar in The Dalles Muni's middle-range seasonal profile. The measured spread is 38.5°F. The annual average is 54°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
The Dalles Muni's cold-season load does not imply a wet climate. Annual precipitation is 13.7 inches, which places the station in PlainClimate's dry range. Snowfall is not added to the interpretation because its annual value is missing. The snowfall and rainfall fields should be read separately rather than inferred from temperature.
The Dalles Muni wettest normal
December
December concentrates the scarce annual total (13.7 inches).
The Dalles Muni driest normal
July
July is typically driest; arid stations are defined by when water is absent, not by a four-season grid.
Questions about The Dalles Muni's climate
How dry is The Dalles Muni? ▼
How many days above 90°F does The Dalles Muni get? ▼
How much energy does heating and cooling require in The Dalles Muni? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from The Dalles Muni's primary station: THE DALLES MUNI AP (USW00024219). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for The Dalles Muni; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for The Dalles Muni comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.