Whitman Mission, WA Climate: Temperature & Rain by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from Whitman Mission's primary NOAA station, WHITMAN MISSION.
The climate verdict for Whitman Mission
Dryness leads the climate profile for Whitman Mission, Washington, with 15.4 inches of precipitation a year. NOAA records an annual average of 52°F. At 52/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 24% of scores.
- 52°F
- annual average temperature (NOAA normal)
- 52/100
- comfort score, above 24% of station-mapped location scores
- 15.4"
- yearly precipitation total
- 152 days
- frost-free growing season
Whitman Mission: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00459200 · Whitman Mission, WA 52°F mean · 15.4" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 52°F
- RANK-MID #3,293
- PHOTO-FINISH ≈ Heppner
- PRCP-DRY 15.4"
- SWING-MID 38°F
- COMF-LOW 52/100
- LOAD-HEAT 5,357 HDD
- STN-1 USC00459200
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Heppner, OR ( -0.1 °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.
- Whitman Mission (this station) 52°F
- Cold Heppner, OR 52°F
- Hot Williams, AZ 52°F
- Near Newport Rose, RI 52°F
- Near Pilot Rock, OR 52°F
Climate Living Index · Whitman Mission
Whitman Mission: 37/100 · grade F
Whitman Mission publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Whitman Mission, not an official NOAA rating. Rankings still use Comfort Score 52/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Annual temperature balance | 51.7°F · 15.8° from 67.5°F | 48/100 · D |
| Normal heat + freeze calendar | 167 calendar days | 34/100 · F |
| Precipitation balance | 15.4 in · 19.6 from 35 in | 30/100 · F |
| Frost-free season | 152 days/year | 27/100 · F |
Whitman Mission · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Whitman Mission is a temperate Köppen climate: Csa
Coldest-month mean 34.1°F and warmest-month mean 72.0°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
- 72.0°F
- Coldest month
- 34.1°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 Whitman Mission sits across the climate record
Three NOAA fields for Whitman Mission's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 48th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Drier than 82%
- Whitman Mission's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 73%
- Warmest-to-coldest month gap for Whitman Mission is compact versus 6,861 complete station-years.
How Whitman Mission compares across U.S. station-mapped locations
Whitman Mission's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
52 24th percentile score exceeds 24% 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
Whitman Mission's measured station temperature trend
MethodologyAcross 44 complete annual observations from 1963 to 2024, WHITMAN MISSION changed little at a fitted rate of 0.02°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Whitman Mission primary station fitted change +0.02 °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) | 27°F (-3°C) | 35°F (2°C) | 1.7" | 23.3 | 0.0 |
| February | 48°F (9°C) | 28°F (-2°C) | 38°F (3°C) | 1.4" | 20.0 | 0.0 |
| March | 57°F (14°C) | 32°F (0°C) | 45°F (7°C) | 1.7" | 16.4 | 0.0 |
| April | 65°F (18°C) | 37°F (3°C) | 51°F (10°C) | 1.5" | 8.3 | 0.0 |
| May | 73°F (23°C) | 44°F (7°C) | 58°F (15°C) | 1.8" | 1.8 | 1.3 |
| June | 80°F (27°C) | 49°F (10°C) | 65°F (18°C) | 1.1" | 0.0 | 4.2 |
| July | 90°F (32°C) | 54°F (12°C) | 72°F (22°C) | 0.4" | 0.0 | 17.2 |
| August | 90°F (32°C) | 52°F (11°C) | 71°F (22°C) | 0.4" | 0.0 | 16.9 |
| September | 80°F (27°C) | 44°F (7°C) | 62°F (17°C) | 0.7" | 1.4 | 4.1 |
| October | 66°F (19°C) | 36°F (2°C) | 51°F (10°C) | 1.3" | 12.6 | 0.0 |
| November | 50°F (10°C) | 31°F (-1°C) | 41°F (5°C) | 1.7" | 17.5 | 0.0 |
| December | 41°F (5°C) | 27°F (-3°C) | 34°F (1°C) | 1.7" | 23.8 | 0.0 |
The year, day by day
Whitman Mission works both ends of the calendar. Normal highs climb to 93°F by July 27 and hold at or above 90°F on 35 dates, then normal lows drop to freezing or below on 132 dates, bottoming at 26°F around December 24.
When the heat sits
Normal highs reach 90°F from July 13 through August 16, covering 35 dates. The broader mild season, normal highs of 70°F or more, runs May 4 to October 7.
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 March 14, then returns to freezing around November 4, covering 132 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.
The widest day
August 1 carries the biggest normal gap between afternoon and dawn, 38°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Whitman Mission.
Where Whitman Mission Stands Nationally
Day-to-night contrast is extreme by national standards — the widest normal daily swing reaches about 38°F, sharper than nine in ten ranked stations see.
A drier-than-most normal water year — around 15 inches, below what four out of five ranked stations collect.
Whitman Mission earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
Whitman Mission spreads its precipitation across the year
Neither half of the year dominates here: June through August take 12% of the annual total and December through February 31%, with neither reaching the 35% that would mark a distinct wet season. Whitman Mission has no dry season to plan around, though it does carry a 37.9°F seasonal spread.
The gap between the wettest and driest month still matters: May averages 1.8" and July 0.4". The three wettest months together take 34% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
Frost Dates & Growing Season
First Fall Freeze
October 1
50% probability date
Last Spring Freeze
May 2
50% probability date
Growing Season
152 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,357
Higher = more heating needed
Cooling Degree Days
554
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside WA closest to Whitman Mission 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 (52°F here).
- Burlington, CO 52°F · 0.0°F off
- Conception, MO 52°F · 0.0°F off
- Donnellson, IA 52°F · 0.0°F off
- Dugway, UT 52°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (15.4" here), excluding temperature-peer places.
- Healy, AK 15.4" · 0.0" off
- Salinas, CA 15.4" · 0.0" off
- Cheyenne, WY 15.4" · 0.0" off
- Lompoc, CA 15.4" · 0.0" off
Data-derived climate profile
How Whitman Mission's climate pattern fits together
heating led · dry · mid swing
Whitman Mission's energy balance leans toward cold weather: 5,357 annual heating degree days against 554 for cooling. Its 37.9°F seasonal range still makes the monthly rows more useful than the annual average alone.
Whitman Mission's frost-free season lasts about 152 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 Whitman Mission's middle-range seasonal profile. The measured spread is 37.9°F. The annual average is 52°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Whitman Mission's cold-season load does not imply a wet climate. Annual precipitation is 15.4 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.
These labels group NOAA 1991-2020 normals from Whitman Mission's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for Whitman Mission, not an official NOAA class or a year-ahead forecast.
Questions about Whitman Mission's climate
How much rain does Whitman Mission get? ▼
How many days above 90°F does Whitman Mission get? ▼
How much energy does heating and cooling require in Whitman Mission? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Whitman Mission's primary station: WHITMAN MISSION (USC00459200). 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 Whitman Mission; 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 Whitman Mission 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.