Cedar Lake, Washington climate: Climate normals at a NOAA weather station
Cedar Lake's normal year runs from 31°F December nights to 71°F August afternoons, with 99.8 inches of precipitation and 42 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 8.2°C, December lows of 0°C, August highs of 22°C, 2,536 mm of precipitation a year.
- NOAA stationCedar Lake
- Station IDUSC00451233
- Location47.41°N 121.76°W
- Elevation1,560 ft (476 m)
On October 23, the normal high in Cedar Lake is 51°F and the normal low 40°F, and the chance of measurable rain or snow is 61%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Cedar Lake.
- Jan 40° 32°
- Feb 42° 32°
- Mar 46° 33°
- Apr 51° 36°
- May 59° 42°
- Jun 63° 46°
- Jul 70° 51°
- Aug 71° 52°
- Sep 64° 47°
- Oct 54° 41°
- Nov 44° 36°
- Dec 39° 31°
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 Cedar Lake each month?
August is the warmest month, with normal highs of 71°F; December the coldest, with normal lows of 31°F. The most precipitation falls in November (14.57 in), the least in July (2.13 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 40°F | 32°F | 35.5°F | 12.96 | 8.0 | 19 | <1 | 17 | 8 h 50 min |
| February | 42°F | 32°F | 36.8°F | 9.21 | 9.7 | 17 | <1 | 16 | 10 h 10 min |
| March | 46°F | 33°F | 39.4°F | 10.56 | 7.7 | 20 | <1 | 15 | 11 h 50 min |
| April | 51°F | 36°F | 43.6°F | 9.17 | 2.7 | 19 | <1 | 8 | 13 h 30 min |
| May | 59°F | 42°F | 50.4°F | 6.62 | 0.2 | 17 | <1 | 1 | 15 h |
| June | 63°F | 46°F | 54.7°F | 5.59 | 0.0 | 15 | <1 | <1 | 16 h |
| July | 70°F | 51°F | 60.5°F | 2.13 | 0.0 | 8 | 1 | <1 | 15 h 40 min |
| August | 71°F | 52°F | 61.2°F | 2.44 | 0.0 | 8 | <1 | <1 | 14 h 20 min |
| September | 64°F | 47°F | 55.8°F | 4.78 | 0.0 | 12 | <1 | <1 | 12 h 40 min |
| October | 54°F | 41°F | 47.5°F | 9.73 | 0.0 | 18 | <1 | 2 | 11 h |
| November | 44°F | 36°F | 39.8°F | 14.57 | 3.7 | 21 | <1 | 10 | 9 h 20 min |
| December | 39°F | 31°F | 34.9°F | 12.07 | 10.0 | 20 | <1 | 18 | 8 h 30 min |
| Year (annual) | 54°F | 40°F | 46.7°F | 99.83 | 42.0 | 193 | 1 | 86 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 4°C | 0°C | 1.9°C | 329 mm | 20 cm |
| February | 6°C | 0°C | 2.7°C | 234 mm | 25 cm |
| March | 8°C | 1°C | 4.1°C | 268 mm | 20 cm |
| April | 11°C | 2°C | 6.4°C | 233 mm | 7 cm |
| May | 15°C | 5°C | 10.2°C | 168 mm | 1 cm |
| June | 17°C | 8°C | 12.6°C | 142 mm | 0 cm |
| July | 21°C | 11°C | 15.8°C | 54 mm | 0 cm |
| August | 22°C | 11°C | 16.2°C | 62 mm | 0 cm |
| September | 18°C | 9°C | 13.2°C | 121 mm | 0 cm |
| October | 12°C | 5°C | 8.6°C | 247 mm | 0 cm |
| November | 7°C | 2°C | 4.3°C | 370 mm | 9 cm |
| December | 4°C | 0°C | 1.6°C | 307 mm | 25 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00451233; 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 Cedar Lake?
Normal highs sit between 65°F and 85°F in July and August. Of those, August has the fewest days with rain (8).
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 USC00451233.
When is the last frost at Cedar Lake?
In Cedar Lake, the last spring frost (32°F) comes after April 23 in half of years and after May 13 in one year in ten; the first autumn frost comes before November 1 in half of years and before October 17 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 231 year in 10 after May 13; 9 in 10 after April 3
- First autumn frost, half of years before
- November 11 year in 10 before October 17; 9 in 10 before November 22
NOAA puts the median frost-free season at 193 days, and the season without a hard freeze (28°F) at 243 days.
A hard freeze (28°F) comes after March 24 in half of springs and before November 22 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Cedar Lake in zone 8a in ZIP code 98045, 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 16°F (24 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 USC00451233; 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 Cedar Lake?
In a normal year in Cedar Lake, 1 day a year reaches 90°F, 86 nights fall to 32°F or colder and 193 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
- 86a normal year
- Days that stay below freezing
- 10high of 32°F or less
- Days with 0.01 inch of precipitation
- 193a normal year
- Days with 1 inch of snow or more
- 14a normal year
The highest temperature in this station's record (since 1909) is 101°F, on June 29, 2021; the lowest is −4°F, on January 15, 1950.
The wettest calendar year on that record is 1933, with 138.31 in; the snowiest season is 1948–49, with 187.6 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00451233; records: ACIS (NOAA Regional Climate Centers), station USC00451233. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Cedar Lake?
Over a year 73% of the sunlight that would reach the ground under clear skies gets through the clouds at Cedar Lake, 3.8 kWh per square metre a day. July is the sunniest month (86%) and December the cloudiest (54%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 56% | 1.2 |
| February | 64% | 2.1 |
| March | 63% | 3.1 |
| April | 67% | 4.6 |
| May | 70% | 5.7 |
| June | 74% | 6.3 |
| July | 86% | 7.0 |
| August | 85% | 5.9 |
| September | 79% | 4.3 |
| October | 69% | 2.5 |
| 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 Cedar Lake record?
A normal year at Cedar Lake brings 6,723 heating degree days, 25% more than the median U.S. place (5,373), and 59 cooling degree days, 94% fewer than the median (908). Nine months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 1,171 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 915 | 0 |
| February | 790 | 0 |
| March | 792 | 0 |
| April | 641 | 0 |
| May | 454 | 1 |
| June | 313 | 5 |
| July | 164 | 24 |
| August | 142 | 22 |
| September | 281 | 5 |
| October | 544 | 0 |
| November | 756 | 0 |
| December | 933 | 0 |
| Year (annual) | 6,723 | 59 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00451233. 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 Cedar Lake been warmer than normal?
Over 72 complete years from 1912 to 2020, the station's annual mean temperature rose at a fitted 0.1°F per century (+0.00°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 Cedar Lake's climate compare?
Cedar Lake is warmer than 12 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 46.7°F is warmer than 26%.
In the Köppen classification computed from these normals, Cedar Lake 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 Cedar Lake share this climate record?
3 places have no NOAA station with 1991-2020 normals of their 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.
- Riverbend, WA2,150 people · 3 mi N
- Wilderness Rim, WA1,770 people · 2 mi N
- Riverpoint, WA982 people · 5 mi NE
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 Cedar Lake's climate
What is the coldest month at Cedar Lake?
December, with a normal high of 39°F and a normal low of 31°F. The warmest is August (71°F by day, 52°F at night).
Does it snow at Cedar Lake?
Yes: 42 inches in a normal year, falling on 21 days with 0.1 inch or more, the most in December (10.0 inches).
What is the rainiest month at Cedar Lake?
November, with 14.57 in of precipitation in a normal year; the driest is July with 2.13 in.
What plant hardiness zone is Cedar Lake in?
The USDA's 2023 map puts Cedar Lake in zone 8a in ZIP code 98045, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 16°F (24 years, 1991-2020): zone 8b.
How late can frost come at Cedar Lake?
In half of years the last 32°F night comes after April 23; in one year in ten it comes after May 13. Waiting until May 13 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Washington climateThe statewide normals and every place in the state
- Palmer (3 mi ESE), WA9 miles from this station, 50.4°F a year
- Snoqualmie, WA9 miles from this station, 51.7°F a year
- Landsburg, WA10 miles from this station, 50.5°F a year
- Tolt S Fork Reservoir, WA20 miles from this station, 48.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made