Colville, Washington climate: Normal weather by month, frost dates and records
Colville's normal year runs from 23°F January nights to 88°F July afternoons, with 19.9 inches of precipitation and 43 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 9.4°C, January lows of −5°C, July highs of 31°C, 505 mm of precipitation a year.
- NOAA stationColville
- Station IDUSC00451630
- Location48.57°N 117.94°W
- Elevation1,554 ft (474 m)
- Population5,009
On October 23, the normal high in Colville is 56°F and the normal low 33°F, and the chance of measurable rain or snow is 32%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Colville.
- Jan 34° 23°
- Feb 42° 24°
- Mar 53° 30°
- Apr 63° 35°
- May 72° 43°
- Jun 78° 49°
- Jul 88° 53°
- Aug 89° 51°
- Sep 78° 44°
- Oct 61° 35°
- Nov 44° 29°
- Dec 34° 24°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Colville each month?
July is the warmest month, with normal highs of 88°F; January the coldest, with normal lows of 23°F. The most precipitation falls in December (2.80 in), the least in August (0.68 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 34°F | 23°F | 28.8°F | 2.20 | 14.5 | 12 | <1 | 27 | 8 h 40 min |
| February | 42°F | 24°F | 32.9°F | 1.47 | 5.4 | 10 | <1 | 23 | 10 h 10 min |
| March | 53°F | 30°F | 41.1°F | 1.89 | 2.7 | 11 | <1 | 20 | 11 h 50 min |
| April | 63°F | 35°F | 48.9°F | 1.53 | 0.2 | 10 | <1 | 11 | 13 h 40 min |
| May | 72°F | 43°F | 57.6°F | 1.93 | 0.0 | 10 | 1 | 2 | 15 h 10 min |
| June | 78°F | 49°F | 63.4°F | 2.14 | 0.0 | 9 | 3 | <1 | 16 h 10 min |
| July | 88°F | 53°F | 70.5°F | 0.83 | 0.0 | 5 | 15 | <1 | 15 h 50 min |
| August | 89°F | 51°F | 69.7°F | 0.68 | 0.0 | 4 | 15 | <1 | 14 h 30 min |
| September | 78°F | 44°F | 61.0°F | 0.72 | 0.0 | 5 | 4 | 1 | 12 h 40 min |
| October | 61°F | 35°F | 47.5°F | 1.51 | 0.0 | 9 | <1 | 13 | 10 h 50 min |
| November | 44°F | 29°F | 36.2°F | 2.19 | 5.6 | 12 | <1 | 19 | 9 h 20 min |
| December | 34°F | 24°F | 28.8°F | 2.80 | 15.0 | 12 | <1 | 27 | 8 h 20 min |
| Year (annual) | 61°F | 37°F | 48.9°F | 19.89 | 43.4 | 108 | 38 | 144 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 1°C | −5°C | −1.8°C | 56 mm | 37 cm |
| February | 5°C | −5°C | 0.5°C | 37 mm | 14 cm |
| March | 12°C | −1°C | 5.1°C | 48 mm | 7 cm |
| April | 17°C | 2°C | 9.4°C | 39 mm | 1 cm |
| May | 22°C | 6°C | 14.2°C | 49 mm | 0 cm |
| June | 26°C | 9°C | 17.4°C | 54 mm | 0 cm |
| July | 31°C | 11°C | 21.4°C | 21 mm | 0 cm |
| August | 31°C | 11°C | 20.9°C | 17 mm | 0 cm |
| September | 26°C | 7°C | 16.1°C | 18 mm | 0 cm |
| October | 16°C | 1°C | 8.6°C | 38 mm | 0 cm |
| November | 6°C | −2°C | 2.3°C | 56 mm | 14 cm |
| December | 1°C | −5°C | −1.8°C | 71 mm | 38 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00451630; 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.
When is the best weather to visit Colville?
Normal highs sit between 65°F and 85°F in May, June and September. Of those, September has the fewest days with rain (5).
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 USC00451630.
When is the last frost in Colville?
In Colville, the last spring frost (32°F) comes after May 2 in half of years and after May 17 in one year in ten; the first autumn frost comes before October 2 in half of years and before September 19 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 21 year in 10 after May 17; 9 in 10 after April 19
- First autumn frost, half of years before
- October 21 year in 10 before September 19; 9 in 10 before October 17
NOAA puts the median frost-free season at 153 days, and the season without a hard freeze (28°F) at 183 days.
A hard freeze (28°F) comes after April 15 in half of springs and before October 14 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Colville in zone 6a in ZIP code 99114, the nearest ZIP area.
Frost dates for every NOAA station in Washington · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00451630; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. 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 in Colville?
In a normal year in Colville, 38 days a year reach 90°F (5 of them 100°F or more), 144 nights fall to 32°F or colder and 108 days bring measurable precipitation.
- Days at 90°F or more
- 38a normal year
- Days at 100°F or more
- 5a normal year
- Nights at 32°F or colder
- 144a normal year
- Days that stay below freezing
- 27high of 32°F or less
- Days with 0.01 inch of precipitation
- 108a normal year
- Days with 1 inch of snow or more
- 17a normal year
The highest temperature in this station's record (since 1899) is 112°F, on June 30, 2021; the lowest is −29°F, on January 11, 1909.
The wettest calendar year on that record is 2012, with 29.16 in; the snowiest season is 1996–97, with 98.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00451630; records: ACIS (NOAA Regional Climate Centers), station USC00451630. Records use complete months only; a month missing more than three days is left out.
How sunny is Colville?
Over a year 71% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Colville, 3.6 kWh per square metre a day. July is the sunniest month (87%) and December the cloudiest (48%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 50% | 1.0 |
| February | 60% | 1.9 |
| March | 59% | 2.9 |
| April | 65% | 4.4 |
| May | 71% | 5.7 |
| June | 70% | 6.0 |
| July | 87% | 7.2 |
| August | 86% | 5.9 |
| September | 79% | 4.2 |
| October | 68% | 2.4 |
| November | 53% | 1.2 |
| December | 48% | 0.8 |
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 much heating and cooling does Colville need?
A normal year in Colville brings 6,307 heating degree days, 17% more than the median U.S. place (5,373), and 458 cooling degree days, 49% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,357 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,124 | 0 |
| February | 899 | 0 |
| March | 739 | 0 |
| April | 483 | 0 |
| May | 243 | 13 |
| June | 97 | 50 |
| July | 20 | 191 |
| August | 21 | 168 |
| September | 155 | 35 |
| October | 541 | 0 |
| November | 864 | 0 |
| December | 1,121 | 0 |
| Year (annual) | 6,307 | 458 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00451630. 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.
Has Colville been warmer than normal lately?
2024 averaged 49.1°F, 0.2°F above the 1991-2020 normal of 48.9°F. 2 of the 3 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 48.1°F | −0.8°F | 12.60 | – |
| 2023 | 49.2°F | +0.3°F | 17.87 | – |
| 2024 | 49.1°F | +0.2°F | 20.70 | – |
Over 72 complete years from 1902 to 2024, the station's annual mean temperature rose at a fitted 3.9°F per century (+0.22°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00451630; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Colville's climate compare?
Colville is warmer than 25 of the other 95 places with their own NOAA record in Washington, and wetter than 42. Across the 7,247 U.S. stations with normals, its annual mean of 48.9°F is warmer than 36%.
In the Köppen classification computed from these normals, Colville 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 Colville share this climate record?
5 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.
- Kettle Falls, WA1,649 people · 6 mi NW
- Inchelium, WA397 people · 20 mi SW
- Marcus, WA219 people · 9 mi NW
- Barney's Junction, WA80 people · 10 mi W
- Boyds, WA35 people · 14 mi NW
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 Colville's climate
What is the coldest month in Colville?
January, with a normal high of 34°F and a normal low of 23°F. The warmest is July (88°F by day, 53°F at night).
Does it snow in Colville?
Yes: 43 inches in a normal year, falling on 25 days with 0.1 inch or more, the most in December (15.0 inches).
What is the rainiest month in Colville?
December, with 2.80 in of precipitation in a normal year; the driest is August with 0.68 in.
What plant hardiness zone is Colville in?
The USDA's 2023 map puts Colville in zone 6a in ZIP code 99114, the nearest ZIP area.
How late can frost come in Colville?
In half of years the last 32°F night comes after May 2; in one year in ten it comes after May 17. Waiting until May 17 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Washington climateThe statewide normals and every place in the state
- Chewelah, WA22 miles from this station, 46.3°F a year
- Northport, WA24 miles from this station, 46.4°F a year
- Republic, WA37 miles from this station, 43.8°F a year
- Boundary Dam, WA40 miles from this station, 46.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made