Quillayute State Airport, Washington climate: Climate normals at a NOAA weather station
Quillayute State Airport's normal year runs from 35°F December nights to 69°F August afternoons, with 101.3 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 9.7°C, December lows of 2°C, August highs of 21°C, 2,574 mm of precipitation a year.
- NOAA stationQuillayute State Airport
- Station IDUSW00094240
- Location47.94°N 124.56°W
- Elevation185 ft (56 m)
On October 23, the normal high in Quillayute State Airport is 57°F and the normal low 41°F, and the chance of measurable rain or snow is 62%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Quillayute State Airport.
- Jan 48° 36°
- Feb 49° 35°
- Mar 51° 37°
- Apr 55° 39°
- May 60° 43°
- Jun 63° 48°
- Jul 68° 51°
- Aug 69° 51°
- Sep 67° 48°
- Oct 59° 42°
- Nov 51° 38°
- Dec 47° 35°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Quillayute State Airport each month?
August is the warmest month, with normal highs of 69°F; December the coldest, with normal lows of 35°F. The most precipitation falls in January (15.59 in), the least in July (1.58 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 48°F | 36°F | 41.7°F | 15.59 | 22 | <1 | 10 | 8 h 50 min |
| February | 49°F | 35°F | 42.1°F | 9.73 | 19 | <1 | 10 | 10 h 10 min |
| March | 51°F | 37°F | 43.9°F | 11.78 | 22 | <1 | 8 | 11 h 50 min |
| April | 55°F | 39°F | 46.9°F | 8.11 | 19 | <1 | 4 | 13 h 40 min |
| May | 60°F | 43°F | 51.7°F | 4.25 | 15 | <1 | 1 | 15 h 10 min |
| June | 63°F | 48°F | 55.5°F | 3.30 | 15 | <1 | <1 | 16 h |
| July | 68°F | 51°F | 59.3°F | 1.58 | 9 | <1 | <1 | 15 h 40 min |
| August | 69°F | 51°F | 60.0°F | 2.64 | 9 | 1 | <1 | 14 h 20 min |
| September | 67°F | 48°F | 57.1°F | 4.56 | 11 | <1 | <1 | 12 h 40 min |
| October | 59°F | 42°F | 50.6°F | 10.68 | 18 | <1 | 2 | 11 h |
| November | 51°F | 38°F | 44.7°F | 15.26 | 22 | <1 | 7 | 9 h 20 min |
| December | 47°F | 35°F | 41.0°F | 13.84 | 23 | <1 | 11 | 8 h 30 min |
| Year (annual) | 57°F | 42°F | 49.5°F | 101.32 | 203 | 1 | 53 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 9°C | 2°C | 5.4°C | 396 mm |
| February | 10°C | 2°C | 5.6°C | 247 mm |
| March | 11°C | 3°C | 6.6°C | 299 mm |
| April | 13°C | 4°C | 8.3°C | 206 mm |
| May | 16°C | 6°C | 10.9°C | 108 mm |
| June | 17°C | 9°C | 13.1°C | 84 mm |
| July | 20°C | 11°C | 15.2°C | 40 mm |
| August | 21°C | 11°C | 15.6°C | 67 mm |
| September | 19°C | 9°C | 13.9°C | 116 mm |
| October | 15°C | 6°C | 10.3°C | 271 mm |
| November | 11°C | 3°C | 7.1°C | 388 mm |
| December | 8°C | 2°C | 5.0°C | 352 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Forks (9 miles away), gets 8 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00094240; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
Which months are mildest at Quillayute State Airport?
Normal highs sit between 65°F and 85°F in July, August and September. Of those, August has the fewest days with rain (9).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00094240.
When is the last frost at Quillayute State Airport?
In Quillayute State Airport, the last spring frost (32°F) comes after April 20 in half of years and after May 10 in one year in ten; the first autumn frost comes before October 26 in half of years and before October 2 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 201 year in 10 after May 10; 9 in 10 after March 29
- First autumn frost, half of years before
- October 261 year in 10 before October 2; 9 in 10 before November 19
NOAA puts the median frost-free season at 190 days, and the season without a hard freeze (28°F) at 243 days.
A hard freeze (28°F) comes after March 17 in half of springs and before November 15 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Quillayute State Airport in zone 9a in ZIP code 98350, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 8b: the coldest night of a typical year reaches 20°F (30 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Washington · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00094240; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get at Quillayute State Airport?
In a normal year in Quillayute State Airport, 1 day a year reaches 90°F, 53 nights fall to 32°F or colder and 203 days bring measurable precipitation.
- Days at 90°F or more
- 1a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 53a normal year
- Days that stay below freezing
- 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 203a normal year
The highest temperature in this station's record (since 1966) is 99°F, on August 9, 1981; the lowest is 5°F, on November 23, 1985.
The wettest calendar year on that record is 1975, with 131.64 in; the snowiest season is 1970–71, with 58.7 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00094240; records: ACIS (NOAA Regional Climate Centers), station USW00094240. Records use complete months only; a month missing more than three days is left out.
How humid and windy is it at Quillayute State Airport, and how clear are the skies?
The summer (June-August) dew point averages 53°F. The muggiest month is July, with an average dew point of 54°F; the driest air comes in February (36°F). December is the windiest month (6.2 mph on average), and August has the most clear or nearly clear hours (50%).
| Month | Dew point | Humidity | Afternoon humidity | Wind | Clear or few clouds | Overcast |
|---|---|---|---|---|---|---|
| January | 38°F | 86% | 76% | 6.1 mph | 31% | 55% |
| February | 36°F | 82% | 68% | 6.0 mph | 36% | 47% |
| March | 40°F | 82% | 67% | 5.9 mph | 31% | 47% |
| April | 43°F | 80% | 64% | 5.6 mph | 35% | 46% |
| May | 48°F | 81% | 67% | 5.0 mph | 35% | 46% |
| June | 52°F | 81% | 67% | 4.7 mph | 41% | 43% |
| July | 54°F | 82% | 66% | 4.5 mph | 46% | 40% |
| August | 53°F | 81% | 64% | 4.3 mph | 50% | 33% |
| September | 49°F | 83% | 67% | 4.3 mph | 49% | 37% |
| October | 43°F | 86% | 75% | 5.5 mph | 34% | 50% |
| November | 38°F | 87% | 78% | 5.8 mph | 34% | 50% |
| December | 37°F | 88% | 81% | 6.2 mph | 31% | 55% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00094240. Monthly averages of all hours; afternoon humidity at 3 p.m. local standard time; sky as the share of hours NOAA's observations rate clear or few clouds (a dash where NOAA publishes no sky value).
How sunny is it at Quillayute State Airport?
Over a year 67% of the sunlight that would reach the ground under clear skies gets through the clouds at Quillayute State Airport, 3.4 kWh per square metre a day. September is the sunniest month (73%) and January the cloudiest (54%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 54% | 1.0 |
| February | 62% | 1.9 |
| March | 62% | 3.0 |
| April | 66% | 4.3 |
| May | 67% | 5.2 |
| June | 68% | 5.7 |
| July | 71% | 5.7 |
| August | 72% | 4.9 |
| September | 73% | 3.9 |
| October | 65% | 2.3 |
| November | 58% | 1.3 |
| December | 54% | 0.9 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How many heating and cooling degree days does Quillayute State Airport record?
A normal year at Quillayute State Airport brings 5,650 heating degree days, 5% more than the median U.S. place (5,373), and 22 cooling degree days, 98% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 1,178 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 722 | 0 |
| February | 640 | 0 |
| March | 653 | 0 |
| April | 545 | 0 |
| May | 413 | 1 |
| June | 288 | 3 |
| July | 184 | 7 |
| August | 163 | 8 |
| September | 240 | 3 |
| October | 448 | 0 |
| November | 611 | 0 |
| December | 744 | 0 |
| Year (annual) | 5,650 | 22 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00094240. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Have recent years at Quillayute State Airport been warmer than normal?
2025 averaged 50.2°F, 0.7°F above the 1991-2020 normal of 49.5°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 49.5°F | at normal | 115.71 |
| 2022 | 49.6°F | +0.1°F | 96.35 |
| 2023 | 52.0°F | +2.5°F | 87.71 |
| 2024 | 52.5°F | +3.0°F | 112.79 |
| 2025 | 50.2°F | +0.7°F | – |
Over 49 complete years from 1968 to 2025, the station's annual mean temperature rose at a fitted 4.7°F per century (+0.26°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USW00094240; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Quillayute State Airport's climate compare?
Quillayute State Airport is warmer than 30 of the 96 places with their own NOAA record in Washington, and wetter than 86. Across the 7,247 U.S. stations with normals, its annual mean of 49.5°F is warmer than 38%.
In the Köppen classification computed from these normals, Quillayute State Airport is Cfb: temperate, no dry season, warm summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Quillayute State Airport share this climate record?
Neah Bay has no NOAA station with 1991-2020 normals of its own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Neah Bay, WA1,056 people · 29 mi N
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Quillayute State Airport's climate
What is the coldest month at Quillayute State Airport?
December, with a normal high of 47°F and a normal low of 35°F. The warmest is August (69°F by day, 51°F at night).
Does it snow at Quillayute State Airport?
Yes. NOAA publishes no 1991-2020 snowfall normal for the station; the nearest record that keeps one, Forks (9 miles away), records 8 inches of snow in a normal year.
What is the rainiest month at Quillayute State Airport?
January, with 15.59 in of precipitation in a normal year; the driest is July with 1.58 in.
What plant hardiness zone is Quillayute State Airport in?
The USDA's 2023 map puts Quillayute State Airport in zone 9a in ZIP code 98350, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 20°F (30 years, 1991-2020): zone 8b.
How late can frost come at Quillayute State Airport?
In half of years the last 32°F night comes after April 20; in one year in ten it comes after May 10. Waiting until May 10 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Quillayute State Airport in OctoberThis month day by day, its records and recent years
- Washington climateThe statewide normals and every place in the state
- Forks, WA9 miles from this station, 50.4°F a year
- Clearwater, WA28 miles from this station, 50.4°F a year
- Elwha Ranger Station, WA45 miles from this station, 48.7°F a year
- Quinault (4 mi NE), WA45 miles from this station, 50.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made