Spokane Valley, Washington climate: NOAA's gridded normals for the city, beside the nearest station records
NOAA's gridded 1991-2020 normals put Spokane Valley's center at January lows of 25°F and July highs of 85°F, a yearly mean of 48.2°F and 20.4 inches of precipitation. No NOAA station keeps a record under the city's name. The nearest station record, Coeur d'Alene (20 miles E, 2,133 ft), has January lows of 26°F and July highs of 83°F.
108,267 people (Census Bureau 2024). Distances and directions are from the city's center.
- Jan 36° 25°
- Feb 41° 26°
- Mar 50° 30°
- Apr 58° 35°
- May 68° 43°
- Jun 74° 48°
- Jul 85° 54°
- Aug 85° 52°
- Sep 75° 45°
- Oct 59° 36°
- Nov 44° 29°
- Dec 36° 25°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
The months above are NOAA's gridded normals at Spokane Valley's center.
What is each month like in Spokane Valley?
NOAA's grid estimates the normals every 5 km or so from the stations around each point, terrain included. It smooths between stations, so night lows at the heart of a large city can run warmer than the grid shows: at five big-city airports we compared, the grid's highs were within about 1°F of the station and its lows 1-6°F cooler. The nearest record's high and low are beside each month.
| Month | High | Low | Mean | Precip. | Coeur d'Alene high | Coeur d'Alene low |
|---|---|---|---|---|---|---|
| January | 36°F | 25°F | 30.4°F | 2.50 | 36°F | 26°F |
| February | 41°F | 26°F | 33.6°F | 1.68 | 41°F | 27°F |
| March | 50°F | 30°F | 40.1°F | 2.15 | 48°F | 31°F |
| April | 58°F | 35°F | 46.6°F | 1.66 | 56°F | 37°F |
| May | 68°F | 43°F | 55.2°F | 1.88 | 66°F | 44°F |
| June | 74°F | 48°F | 61.2°F | 1.66 | 72°F | 51°F |
| July | 85°F | 54°F | 69.3°F | 0.63 | 83°F | 57°F |
| August | 85°F | 52°F | 68.5°F | 0.54 | 83°F | 56°F |
| September | 75°F | 45°F | 59.6°F | 0.77 | 74°F | 48°F |
| October | 59°F | 36°F | 47.1°F | 1.69 | 58°F | 39°F |
| November | 44°F | 29°F | 36.6°F | 2.50 | 44°F | 32°F |
| December | 36°F | 25°F | 30.1°F | 2.76 | 36°F | 26°F |
In metric: a yearly mean of 9.0°C, January lows of −4°C, July highs of 29°C and 519 mm of precipitation a year.
Source: NOAA NCEI U.S. Monthly Gridded Climate Normals 1991-2020 (nClimGrid, accession 0245564); NOAA NCEI 1991-2020 station normals. The grid cell holding the city's Census center point.
What do the station records around Spokane Valley say?
Each row is a NOAA station's own 1991-2020 normals, with the snow and frost dates the grid does not give. A record downhill or nearer the coast than the city can run warmer, one uphill cooler: compare the elevations.
| Record | Where | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Coeur d'AleneCoeur D'alene | 20 mi E | 2,133 ft | 48.8°F | 26°F | 83°F | 25.4 | – | April 22 |
| SpokaneSpokane International Airport | 14 mi W | 2,353 ft | 48.6°F | 25°F | 84°F | 16.4 | 45 | April 26 |
| Deer ParkDeer Park Airport | 23 mi NW | 2,191 ft | 45.5°F | 21°F | 84°F | 22.5 | – | May 22 |
Source: NOAA NCEI 1991-2020 U.S. Climate Normals; place center and population: Census Bureau 2024. Last frost: the median last spring date of 32°F.
How much snow, how late a frost, what zone and how much sun in Spokane Valley?
NOAA's grid gives no snow, frost dates or records, so these come from the nearest station record, Coeur d'Alene (20 miles E, 2,133 ft). NOAA publishes no snowfall normal for it; the nearest record that has one, Spokane (14 miles W), gets 45 inches a year. The last spring frost (32°F) comes after April 22 in half of years and the first autumn frost before October 18. Its record high is 109°F (1961) and its record low −30°F (1950) (kept since 1895).
The USDA's 2023 Plant Hardiness Zone Map puts Spokane Valley in zones 6b to 7a across its 5 ZIP code areas.
Over a year 74% of the sunlight that would reach the ground under clear skies gets through the clouds in the area (3.8 kWh per square metre a day, NASA POWER 2001-2020); July is the sunniest month (90%) and December the cloudiest (50%).
Coeur d'Alene's page has its months, frost probabilities, records by month and recent years. NOAA's grid has monthly figures only, so there are no day-by-day month pages for Spokane Valley; the nearest record's month pages have them.
Source: NOAA NCEI 1991-2020 normals, station USC00101956; records: ACIS; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; sunshine: NASA POWER.
How does the climate vary across Spokane Valley, ZIP code by ZIP code?
5 ZIP code areas lie wholly or partly in Spokane Valley. On NOAA's grid 99212 is the warmest (48.4°F a year) and 99016 the coolest (46.9°F), a spread of 1.5°F. Each row also names the nearest station record and its frost dates.
| ZIP code | Zone | Year | Jan low | Jul high | Precip. | Nearest record | Last frost | First frost |
|---|---|---|---|---|---|---|---|---|
| 99016 | 6b | 46.9°F | 26°F | 82°F | 25.0 | Coeur d'Alene (16 mi) | April 22 | October 18 |
| 99037 | 7a | 48.0°F | 25°F | 85°F | 21.4 | Spokane (15 mi) | April 26 | October 12 |
| 99206 | 7a | 48.3°F | 25°F | 85°F | 19.0 | Spokane (13 mi) | April 26 | October 12 |
| 99212 | 7a | 48.4°F | 25°F | 85°F | 18.2 | Spokane (11 mi) | April 26 | October 12 |
| 99216 | 7a | 47.9°F | 25°F | 84°F | 22.0 | Spokane (15 mi) | April 26 | October 12 |
Source: Census Bureau 2020 ZCTA-to-place relationship file and ZCTA centers; NOAA NCEI gridded and station normals, 1991-2020. A ZIP area counts when at least a tenth of its land (and 0.5 km²) is in the city; its figures are the grid cell at its center; frost dates are the nearest record's medians of 32°F.