Landsburg, Washington climate: Climate normals at a NOAA weather station
Landsburg's normal year runs from 32°F December nights to 77°F August afternoons, with 59.7 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 10.3°C, December lows of 0°C, August highs of 25°C, 1,516 mm of precipitation a year.
- NOAA stationLandsburg
- Station IDUSC00454486
- Location47.38°N 121.96°W
- Elevation535 ft (163 m)
On October 23, the normal high in Landsburg is 57°F and the normal low 40°F, and the chance of measurable rain or snow is 59%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Landsburg.
- Jan 46° 33°
- Feb 49° 33°
- Mar 53° 35°
- Apr 59° 39°
- May 66° 44°
- Jun 70° 48°
- Jul 77° 51°
- Aug 77° 52°
- Sep 71° 47°
- Oct 60° 41°
- Nov 50° 36°
- Dec 45° 32°
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 Landsburg each month?
August is the warmest month, with normal highs of 77°F; December the coldest, with normal lows of 32°F. The most precipitation falls in November (8.51 in), the least in July (1.29 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 46°F | 33°F | 39.3°F | 7.99 | 20 | <1 | 15 | 8 h 50 min |
| February | 49°F | 33°F | 40.9°F | 5.44 | 18 | <1 | 13 | 10 h 10 min |
| March | 53°F | 35°F | 44.0°F | 6.19 | 20 | <1 | 11 | 11 h 50 min |
| April | 59°F | 39°F | 48.5°F | 5.55 | 19 | <1 | 4 | 13 h 30 min |
| May | 66°F | 44°F | 54.9°F | 3.87 | 15 | <1 | <1 | 15 h |
| June | 70°F | 48°F | 59.2°F | 3.15 | 12 | 1 | <1 | 16 h |
| July | 77°F | 51°F | 64.2°F | 1.29 | 7 | 2 | <1 | 15 h 40 min |
| August | 77°F | 52°F | 64.4°F | 1.64 | 7 | 2 | <1 | 14 h 20 min |
| September | 71°F | 47°F | 58.8°F | 2.83 | 10 | <1 | <1 | 12 h 40 min |
| October | 60°F | 41°F | 50.3°F | 5.76 | 17 | <1 | 3 | 11 h |
| November | 50°F | 36°F | 42.8°F | 8.51 | 21 | <1 | 9 | 9 h 20 min |
| December | 45°F | 32°F | 38.4°F | 7.46 | 21 | <1 | 15 | 8 h 30 min |
| Year (annual) | 60°F | 41°F | 50.5°F | 59.68 | 186 | 5 | 70 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 8°C | 1°C | 4.1°C | 203 mm |
| February | 9°C | 0°C | 4.9°C | 138 mm |
| March | 12°C | 2°C | 6.7°C | 157 mm |
| April | 15°C | 4°C | 9.2°C | 141 mm |
| May | 19°C | 7°C | 12.7°C | 98 mm |
| June | 21°C | 9°C | 15.1°C | 80 mm |
| July | 25°C | 11°C | 17.9°C | 33 mm |
| August | 25°C | 11°C | 18.0°C | 42 mm |
| September | 21°C | 8°C | 14.9°C | 72 mm |
| October | 15°C | 5°C | 10.2°C | 146 mm |
| November | 10°C | 2°C | 6.0°C | 216 mm |
| December | 7°C | 0°C | 3.6°C | 189 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Palmer (3 mi ESE) (7 miles away), gets 18 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00454486; 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 Landsburg?
Normal highs sit between 65°F and 85°F in May, 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 USC00454486.
When is the last frost at Landsburg?
In Landsburg, 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 25 in half of years and before October 5 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 31
- First autumn frost, half of years before
- October 251 year in 10 before October 5; 9 in 10 before November 12
NOAA puts the median frost-free season at 187 days, and the season without a hard freeze (28°F) at 233 days.
A hard freeze (28°F) comes after March 24 in half of springs and before November 12 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Landsburg in zone 8b in ZIP code 98038, 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 17°F (24 complete years).
Frost dates for every NOAA station in Washington · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00454486; 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 Landsburg?
In a normal year in Landsburg, 5 days a year reach 90°F, 70 nights fall to 32°F or colder and 186 days bring measurable precipitation.
- Days at 90°F or more
- 5a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 70a normal year
- Days that stay below freezing
- 2high of 32°F or less
- Days with 0.01 inch of precipitation
- 186a normal year
The highest temperature in this station's record (since 1915) is 112°F, on June 28, 2021; the lowest is 0°F, on February 5, 1989.
The wettest calendar year on that record is 1975, with 76.39 in; the snowiest season is 1955–56, with 45.9 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00454486; records: ACIS (NOAA Regional Climate Centers), station USC00454486. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Landsburg?
Over a year 73% of the sunlight that would reach the ground under clear skies gets through the clouds at Landsburg, 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 Landsburg record?
A normal year at Landsburg brings 5,407 heating degree days, 1% more than the median U.S. place (5,373), and 130 cooling degree days, 86% 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 1,736 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 795 | 0 |
| February | 676 | 0 |
| March | 651 | 0 |
| April | 494 | 1 |
| May | 317 | 4 |
| June | 187 | 15 |
| July | 75 | 50 |
| August | 70 | 51 |
| September | 197 | 10 |
| October | 454 | 0 |
| November | 666 | 0 |
| December | 825 | 0 |
| Year (annual) | 5,407 | 130 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00454486. 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 Landsburg been warmer than normal?
2022 averaged 51.8°F, 1.3°F above the 1991-2020 normal of 50.5°F. 2 of the 2 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 51.3°F | +0.8°F | 63.80 |
| 2022 | 51.8°F | +1.3°F | – |
Over 69 complete years from 1919 to 2021, the station's annual mean temperature rose at a fitted 1.1°F per century (+0.06°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00454486; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Landsburg's climate compare?
Landsburg is warmer than 46 of the 96 places with their own NOAA record in Washington, and wetter than 74. Across the 7,247 U.S. stations with normals, its annual mean of 50.5°F is warmer than 43%.
In the Köppen classification computed from these normals, Landsburg is Csb: temperate, 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 Landsburg share this climate record?
9 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.
- Maple Valley, WA28,553 people · 3 mi W
- Covington, WA21,567 people · 7 mi W
- Lake Morton-Berrydale, WA10,591 people · 7 mi SW
- Hobart, WA6,841 people · 3 mi NW
- Black Diamond, WA6,787 people · 5 mi SW
- Mirrormont, WA4,217 people · 6 mi N
- Lake Holm, WA3,664 people · 9 mi SW
- Shadow Lake, WA2,221 people · 6 mi W
- Ravensdale, WA308 people · 1 mi SW
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 Landsburg's climate
What is the coldest month at Landsburg?
December, with a normal high of 45°F and a normal low of 32°F. The warmest is August (77°F by day, 52°F at night).
Does it snow at Landsburg?
Yes. NOAA publishes no 1991-2020 snowfall normal for the station; the nearest record that keeps one, Palmer (3 mi ESE) (7 miles away), records 18 inches of snow in a normal year.
What is the rainiest month at Landsburg?
November, with 8.51 in of precipitation in a normal year; the driest is July with 1.29 in.
What plant hardiness zone is Landsburg in?
The USDA's 2023 map puts Landsburg in zone 8b in ZIP code 98038, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 17°F (24 years, 1991-2020): zone 8b.
How late can frost come at Landsburg?
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
- Washington climateThe statewide normals and every place in the state
- Palmer (3 mi ESE), WA7 miles from this station, 50.4°F a year
- Cedar Lake, WA10 miles from this station, 46.7°F a year
- Snoqualmie, WA13 miles from this station, 51.7°F a year
- Kent, WA14 miles from this station, 53.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made