Monroe, 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 Monroe's primary NOAA station, MONROE.
The climate verdict for Monroe
Water is the standout signal in Monroe, Washington: 50.8 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 50°F. Its climate comfort score of 63/100 (good) lands mid-pack nationally, exceeding 46% of station-mapped location scores.
- 50°F
- yearly average temperature, NOAA normal
- 63/100
- comfort score, above 46% of station-mapped location scores
- 50.8"
- annual precipitation · 3" snow
- 189 days
- growing season, frost-free days
Monroe: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00455525 · Monroe, WA 50°F mean · 50.8" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-WET · SWING-NARROW · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 50°F
- RANK-COOL #2,607
- PHOTO-FINISH ≈ Quillayute State
- PRCP-WET 50.8"
- SWING-NARROW 26°F
- COMF-MID 63/100
- LOAD-HEAT 5,696 HDD
- STN-1 USC00455525
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Quillayute State, WA (+ 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.
- Monroe (this station) 50°F
- Hot Darrington, WA 50°F
- Near Quillayute State, WA 50°F
- Near Baring, WA 50°F
- Cold Vernonia, OR 49°F
Climate Living Index · Monroe
Monroe: 61/100 · grade C
Monroe publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Monroe, not an official NOAA rating. Rankings still use Comfort Score 63/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 52 calendar days | 91/100 · A |
| Snowfall burden | 3.0 inches/year | 74/100 · B |
| Frost-free season | 189 days/year | 56/100 · C |
| Precipitation balance | 50.8 in · 15.8 from 35 in | 44/100 · D |
| Annual temperature balance | 49.5°F · 18.0° from 67.5°F | 38/100 · F |
Monroe · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Monroe is a temperate Köppen climate: Csb
Coldest-month mean 37.1°F and warmest-month mean 63.1°F place this station in temperate, dry-summer, warm summer climates (Csb). Class Csb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, dry-summer, warm summer.
- Köppen code
- Csb
- Group
- Temperate
- Warmest month
- 63.1°F
- Coldest month
- 37.1°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 Monroe sits across the climate record
Three NOAA fields for Monroe's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 38th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Top 18% wettest
- Monroe's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 94%
- Warmest-to-coldest month gap for Monroe is compact versus 6,861 complete station-years.
How Monroe compares across U.S. station-mapped locations
Monroe's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
63 46th percentile score exceeds 46% 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%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). This entry sits in this band.
- 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
Monroe's measured station temperature trend
MethodologyAcross 60 complete annual observations from 1930 to 2025, MONROE warmed at a fitted rate of 0.11°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Monroe primary station fitted change +0.11 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 44°F (7°C) | 32°F (0°C) | 38°F (3°C) | 6.5" | 0.1" | 13.0 | 0.0 |
| February | 48°F (9°C) | 32°F (0°C) | 40°F (4°C) | 4.5" | 2.2" | 11.9 | 0.0 |
| March | 52°F (11°C) | 35°F (2°C) | 43°F (6°C) | 5.2" | 0.2" | 7.9 | 0.0 |
| April | 57°F (14°C) | 39°F (4°C) | 48°F (9°C) | 4.3" | 0.0" | 2.9 | 0.0 |
| May | 64°F (18°C) | 44°F (7°C) | 54°F (12°C) | 3.4" | 0.0" | 0.3 | 0.0 |
| June | 68°F (20°C) | 49°F (9°C) | 58°F (15°C) | 2.7" | 0.0" | 0.0 | 0.1 |
| July | 74°F (23°C) | 52°F (11°C) | 63°F (17°C) | 1.1" | 0.0" | 0.0 | 1.0 |
| August | 75°F (24°C) | 52°F (11°C) | 63°F (17°C) | 1.3" | 0.0" | 0.0 | 0.4 |
| September | 69°F (20°C) | 48°F (9°C) | 58°F (15°C) | 2.7" | 0.0" | 0.0 | 0.0 |
| October | 58°F (14°C) | 41°F (5°C) | 50°F (10°C) | 5.0" | 0.0" | 1.7 | 0.0 |
| November | 49°F (9°C) | 35°F (2°C) | 42°F (5°C) | 7.2" | 0.3" | 8.6 | 0.0 |
| December | 43°F (6°C) | 32°F (0°C) | 37°F (3°C) | 6.8" | 0.2" | 13.7 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 76°F around July 31, short of 90°F on every date, while 52 dates carry a normal low at or below freezing, the coldest 31°F near December 17.
The freezing stretch
The normal low stays at or below 32°F into February 20, then returns to freezing around December 6, covering 52 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 November 24, when 72% of years recorded at least a hundredth of an inch. The driest is August 1 at 18%. Summed across the calendar, that is about 188 wet dates a year.
The widest day
August 1 carries the biggest normal gap between afternoon and dawn, 24°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Monroe.
Where Monroe Stands Nationally
The normal water year runs well above the national norm at roughly 51 inches.
Monroe 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 and snowfall
Snow: 0.1"
20.4 days with precipitation
Snow: 2.2"
17.3 days with precipitation
Snow: 0.2"
20.4 days with precipitation
17.3 days with precipitation
14.2 days with precipitation
12.4 days with precipitation
6.4 days with precipitation
6.1 days with precipitation
11.3 days with precipitation
17.8 days with precipitation
Snow: 0.3"
21.6 days with precipitation
Snow: 0.2"
21.9 days with precipitation
Monroe's wet season runs through the cold months
December, January and February carry 35% of the year's precipitation here, while June through August contribute 10%. 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 an unusually narrow 26°F seasonal spread.
- Wettest month
- November, 7.2"
- Driest month
- July, 1.1"
- Wettest three months
- November, December, January (40% 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.
How Monroe's precipitation splits across the calendar
About 187 days a year record measurable precipitation here, carrying 50.8" between them, or roughly 0.27 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Snow reaches Monroe, but rarely amounts to much
The normals record 3.0 inches of snow a year here, most likely in February. That is a real but marginal amount: enough that snow is part of the local record, not enough to define the winter.
A figure in this range usually reflects a handful of events that melt quickly rather than a season of accumulation; about 2 days a year record any measurable snow at all.
NOAA 1991-2020 normals. An average across thirty years can smooth away a single heavy winter, so a small annual figure does not mean a significant snowfall is impossible.
Frost Dates & Growing Season
First Fall Freeze
October 23
50% probability date
Last Spring Freeze
April 17
50% probability date
Growing Season
189 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,696
Higher = more heating needed
Cooling Degree Days
67
Higher = more cooling needed
Warmest Month
August
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside WA closest to Monroe 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 (50°F here).
- Ankeny, IA 50°F · 0.0°F off
- Bartlett, NE 50°F · 0.0°F off
- Carleton, MI 50°F · 0.0°F off
- Columbia City, IN 50°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (50.8" here), excluding temperature-peer places.
- Aiken, SC 50.8" · 0.0" off
- Melbourne, FL 50.8" · 0.0" off
- Oakland, MD 50.8" · 0.0" off
- Rhinebeck, NY 50.7" · 0.0" off
Data-derived climate profile
How Monroe's climate pattern fits together
heating led · wet · low swing
Heating is the larger measured load in Monroe, at 5,696 degree days versus 67 for cooling. Unlike a strongly continental record, however, its 26.0°F month-to-month range is compact; persistent cool-season demand matters more than a dramatic summer-to-winter reversal.
Monroe's frost-free season lasts about 189 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
Monroe's 26.0°F seasonal spread is compact even though precipitation is abundant. August and December mark the typical warm and cold ends of the calendar. The annual average is 50°F. Temperature is relatively steady; the monthly rows show how rain and snow observations vary across the calendar.
Alongside its heating load, Monroe carries 50.8 inches of precipitation in a normal year, inside PlainClimate's wet range. Annual snowfall totals 3.0 inches. That distinction matters because a wet annual total can arrive as rain, snow, or a mixture at different times.
These labels group NOAA 1991-2020 normals from Monroe'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 Monroe, not an official NOAA class or a year-ahead forecast.
Questions about Monroe's climate
How much rain does Monroe get? ▼
How much energy does heating and cooling require in Monroe? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Monroe's primary station: MONROE (USC00455525). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as an incorporated place (GEOID 5346685). Match rule for Monroe: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Monroe 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.