Longmire Rainier NPS, Washington climate: Climate normals at a NOAA weather station
Longmire Rainier NPS's normal year runs from 25°F December nights to 76°F August afternoons, with 82.6 inches of precipitation and 143 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 6.8°C, December lows of −4°C, August highs of 24°C, 2,097 mm of precipitation a year.
- NOAA stationLongmire Rainier NPS
- Station IDUSC00454764
- Location46.75°N 121.81°W
- Elevation2,762 ft (842 m)
On October 23, the normal high in Longmire Rainier NPS is 51°F and the normal low 34°F, and the chance of measurable rain or snow is 57%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Longmire Rainier NPS.
- Jan 37° 26°
- Feb 40° 26°
- Mar 45° 28°
- Apr 51° 31°
- May 60° 37°
- Jun 66° 42°
- Jul 75° 46°
- Aug 76° 46°
- Sep 69° 42°
- Oct 55° 35°
- Nov 43° 29°
- Dec 36° 25°
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 Longmire Rainier NPS each month?
August is the warmest month, with normal highs of 76°F; December the coldest, with normal lows of 25°F. The most precipitation falls in November (12.96 in), the least in July (1.22 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 37°F | 26°F | 31.6°F | 11.45 | 32.7 | 21 | <1 | 27 | 9 h |
| February | 40°F | 26°F | 33.0°F | 8.60 | 19.2 | 17 | <1 | 25 | 10 h 20 min |
| March | 45°F | 28°F | 36.2°F | 7.55 | 25.4 | 20 | <1 | 25 | 11 h 50 min |
| April | 51°F | 31°F | 40.6°F | 5.93 | 9.7 | 19 | <1 | 18 | 13 h 30 min |
| May | 60°F | 37°F | 48.4°F | 4.75 | 2.1 | 17 | <1 | 6 | 15 h |
| June | 66°F | 42°F | 53.7°F | 3.70 | 0.1 | 14 | 1 | <1 | 15 h 50 min |
| July | 75°F | 46°F | 60.8°F | 1.22 | 0.0 | 7 | 2 | <1 | 15 h 30 min |
| August | 76°F | 46°F | 60.9°F | 1.49 | 0.0 | 7 | 2 | <1 | 14 h 20 min |
| September | 69°F | 42°F | 55.1°F | 3.50 | 0.0 | 10 | 1 | 1 | 12 h 40 min |
| October | 55°F | 35°F | 44.8°F | 9.00 | 0.9 | 17 | <1 | 9 | 11 h |
| November | 43°F | 29°F | 35.9°F | 12.96 | 18.6 | 20 | <1 | 21 | 9 h 30 min |
| December | 36°F | 25°F | 30.8°F | 12.42 | 34.3 | 20 | <1 | 28 | 8 h 30 min |
| Year (annual) | 54°F | 34°F | 44.3°F | 82.57 | 143.0 | 188 | 6 | 157 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 3°C | −3°C | −0.2°C | 291 mm | 83 cm |
| February | 5°C | −3°C | 0.6°C | 218 mm | 49 cm |
| March | 7°C | −2°C | 2.3°C | 192 mm | 65 cm |
| April | 10°C | −1°C | 4.8°C | 151 mm | 25 cm |
| May | 16°C | 3°C | 9.1°C | 121 mm | 5 cm |
| June | 19°C | 5°C | 12.1°C | 94 mm | 0 cm |
| July | 24°C | 8°C | 16.0°C | 31 mm | 0 cm |
| August | 24°C | 8°C | 16.1°C | 38 mm | 0 cm |
| September | 20°C | 5°C | 12.8°C | 89 mm | 0 cm |
| October | 13°C | 2°C | 7.1°C | 229 mm | 2 cm |
| November | 6°C | −1°C | 2.2°C | 329 mm | 47 cm |
| December | 2°C | −4°C | −0.7°C | 315 mm | 87 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00454764; 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 Longmire Rainier NPS?
Normal highs sit between 65°F and 85°F in June, July, August and September. Of those, August has the fewest days with rain (7).
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 USC00454764.
When is the last frost at Longmire Rainier NPS?
In Longmire Rainier NPS, the last spring frost (32°F) comes after May 22 in half of years and after June 9 in one year in ten; the first autumn frost comes before October 3 in half of years and before September 16 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
- May 221 year in 10 after June 9; 9 in 10 after May 3
- First autumn frost, half of years before
- October 31 year in 10 before September 16; 9 in 10 before October 18
NOAA puts the median frost-free season at 134 days, and the season without a hard freeze (28°F) at 169 days.
A hard freeze (28°F) comes after May 2 in half of springs and before October 20 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Longmire Rainier NPS in zone 7a in ZIP code 98304, 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 7b: the coldest night of a typical year reaches 10°F (20 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 USC00454764; 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 Longmire Rainier NPS?
In a normal year in Longmire Rainier NPS, 6 days a year reach 90°F, 157 nights fall to 32°F or colder and 188 days bring measurable precipitation.
- Days at 90°F or more
- 6a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 157a normal year
- Days that stay below freezing
- 12high of 32°F or less
- Days with 0.01 inch of precipitation
- 188a normal year
- Days with 1 inch of snow or more
- 38a normal year
The highest temperature in this station's record (since 1909) is 105°F, on June 30, 2021; the lowest is −9°F, on January 20, 1935.
The wettest calendar year on that record is 1990, with 114.71 in; the snowiest season is 1955–56, with 375.6 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00454764; records: ACIS (NOAA Regional Climate Centers), station USC00454764. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Longmire Rainier NPS?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds at Longmire Rainier NPS, 4.1 kWh per square metre a day. July is the sunniest month (90%) and December the cloudiest (56%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 59% | 1.3 |
| February | 67% | 2.3 |
| March | 67% | 3.4 |
| April | 73% | 5.0 |
| May | 75% | 6.0 |
| June | 79% | 6.8 |
| July | 90% | 7.5 |
| August | 89% | 6.3 |
| September | 84% | 4.6 |
| October | 74% | 2.8 |
| November | 63% | 1.5 |
| December | 56% | 1.0 |
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 Longmire Rainier NPS record?
A normal year at Longmire Rainier NPS brings 7,609 heating degree days, 42% more than the median U.S. place (5,373), and 82 cooling degree days, 91% fewer than the median (908). Ten months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 1,132 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,037 | 0 |
| February | 895 | 0 |
| March | 894 | 0 |
| April | 730 | 0 |
| May | 518 | 1 |
| June | 346 | 8 |
| July | 164 | 34 |
| August | 160 | 31 |
| September | 306 | 9 |
| October | 625 | 0 |
| November | 873 | 0 |
| December | 1,062 | 0 |
| Year (annual) | 7,609 | 82 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00454764. 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 Longmire Rainier NPS been warmer than normal?
Over 88 complete years from 1915 to 2020, the station's annual mean temperature rose at a fitted 0.2°F per century (+0.01°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Longmire Rainier NPS's climate compare?
Longmire Rainier NPS is warmer than 1 of the 96 places with their own NOAA record in Washington, and wetter than 82. Across the 7,247 U.S. stations with normals, its annual mean of 44.3°F is warmer than 17%.
In the Köppen classification computed from these normals, Longmire Rainier NPS is Dsb: continental, dry-summer, 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 Longmire Rainier NPS share this climate record?
Ashford 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.
- Ashford, WA570 people · 10 mi W
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 Longmire Rainier NPS's climate
What is the coldest month at Longmire Rainier NPS?
December, with a normal high of 36°F and a normal low of 25°F. The warmest is August (76°F by day, 46°F at night).
Does it snow at Longmire Rainier NPS?
Yes: 143 inches in a normal year, falling on 47 days with 0.1 inch or more, the most in December (34.3 inches).
What is the rainiest month at Longmire Rainier NPS?
November, with 12.96 in of precipitation in a normal year; the driest is July with 1.22 in.
What plant hardiness zone is Longmire Rainier NPS in?
The USDA's 2023 map puts Longmire Rainier NPS in zone 7a in ZIP code 98304, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 10°F (20 years, 1991-2020): zone 7b.
How late can frost come at Longmire Rainier NPS?
In half of years the last 32°F night comes after May 22; in one year in ten it comes after June 9. Waiting until June 9 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Washington climateThe statewide normals and every place in the state
- Rainier Paradise Ranger Station, WA4 miles from this station, 38.4°F a year
- Packwood, WA12 miles from this station, 50.5°F a year
- Glenoma, WA22 miles from this station, 50.0°F a year
- Mud Mountain Dam, WA28 miles from this station, 49.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made