Coeur d'Alene, Idaho climate: Normal weather by month, frost dates and records
Coeur d'Alene's normal year runs from 26°F January nights to 83°F July afternoons, with 25.4 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 9.3°C, January lows of −3°C, July highs of 28°C, 644 mm of precipitation a year.
- NOAA stationCoeur D'alene
- Station IDUSC00101956
- Location47.68°N 116.80°W
- Elevation2,133 ft (650 m)
- From the center1 miles
- Population57,355
On October 23, the normal high in Coeur d'Alene is 55°F and the normal low 37°F, and the chance of measurable rain or snow is 39%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Coeur d'Alene.
- Jan 36° 26°
- Feb 41° 27°
- Mar 48° 31°
- Apr 56° 37°
- May 66° 44°
- Jun 72° 51°
- Jul 83° 57°
- Aug 83° 56°
- Sep 74° 48°
- Oct 58° 39°
- Nov 44° 32°
- Dec 36° 26°
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 Coeur d'Alene each month?
July is the warmest month, with normal highs of 83°F; January the coldest, with normal lows of 26°F. The most precipitation falls in December (3.47 in), the least in July (0.73 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 36°F | 26°F | 31.2°F | 3.21 | 14 | <1 | 25 | 8 h 50 min |
| February | 41°F | 27°F | 33.6°F | 2.11 | 11 | <1 | 23 | 10 h 10 min |
| March | 48°F | 31°F | 39.5°F | 2.68 | 13 | <1 | 19 | 11 h 50 min |
| April | 56°F | 37°F | 46.4°F | 1.91 | 11 | <1 | 7 | 13 h 30 min |
| May | 66°F | 44°F | 55.1°F | 2.14 | 11 | <1 | 1 | 15 h 10 min |
| June | 72°F | 51°F | 61.5°F | 2.17 | 9 | 1 | <1 | 16 h |
| July | 83°F | 57°F | 70.1°F | 0.73 | 4 | 8 | <1 | 15 h 40 min |
| August | 83°F | 56°F | 69.5°F | 0.77 | 4 | 8 | <1 | 14 h 20 min |
| September | 74°F | 48°F | 61.0°F | 0.81 | 6 | 2 | <1 | 12 h 40 min |
| October | 58°F | 39°F | 48.6°F | 2.02 | 11 | <1 | 6 | 11 h |
| November | 44°F | 32°F | 37.9°F | 3.34 | 15 | <1 | 15 | 9 h 20 min |
| December | 36°F | 26°F | 31.2°F | 3.47 | 13 | <1 | 25 | 8 h 30 min |
| Year (annual) | 58°F | 40°F | 48.8°F | 25.36 | 122 | 18 | 120 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 2°C | −3°C | −0.4°C | 82 mm |
| February | 5°C | −3°C | 0.9°C | 54 mm |
| March | 9°C | −1°C | 4.2°C | 68 mm |
| April | 13°C | 3°C | 8.0°C | 49 mm |
| May | 19°C | 7°C | 12.8°C | 54 mm |
| June | 22°C | 11°C | 16.4°C | 55 mm |
| July | 28°C | 14°C | 21.2°C | 19 mm |
| August | 28°C | 13°C | 20.8°C | 20 mm |
| September | 23°C | 9°C | 16.1°C | 21 mm |
| October | 15°C | 4°C | 9.2°C | 51 mm |
| November | 7°C | 0°C | 3.3°C | 85 mm |
| December | 2°C | −3°C | −0.4°C | 88 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Bayview Model Basin (23 miles away), gets 27 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00101956; 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 Coeur d'Alene?
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 (4).
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 USC00101956.
When is the last frost in Coeur d'Alene?
In Coeur d'Alene, the last spring frost (32°F) comes after April 22 in half of years and after May 6 in one year in ten; the first autumn frost comes before October 18 in half of years and before October 4 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 221 year in 10 after May 6; 9 in 10 after April 4
- First autumn frost, half of years before
- October 181 year in 10 before October 4; 9 in 10 before November 5
NOAA puts the median frost-free season at 179 days, and the season without a hard freeze (28°F) at 214 days.
A hard freeze (28°F) comes after April 1 in half of springs and before November 1 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Coeur d'Alene in zone 6b in ZIP code 83815. By the map's own method, the average of each year's coldest night over 1991-2020, Coeur d'Alene's NOAA station is in zone 7b: the coldest night of a typical year reaches 7°F (17 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 Idaho · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00101956; 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 in Coeur d'Alene?
In a normal year in Coeur d'Alene, 18 days a year reach 90°F, 120 nights fall to 32°F or colder and 122 days bring measurable precipitation.
- Days at 90°F or more
- 18a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 120a normal year
- Days that stay below freezing
- 21high of 32°F or less
- Days with 0.01 inch of precipitation
- 122a normal year
The highest temperature in this station's record (since 1895) is 109°F, on August 4, 1961; the lowest is −30°F, on January 30, 1950.
The wettest calendar year on that record is 1927, with 35.55 in; the snowiest season is 1949–50, with 96.6 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00101956; records: ACIS (NOAA Regional Climate Centers), station USC00101956. Records use complete months only; a month missing more than three days is left out.
How sunny is Coeur d'Alene?
Over a year 74% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Coeur d'Alene, 3.8 kWh per square metre a day. July is the sunniest month (90%) and December the cloudiest (50%). Among the 459 U.S. places of 50,000 or more, that ranks tied 330th (with 21 others) in sunshine.
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 53% | 1.1 |
| February | 62% | 2.0 |
| March | 61% | 3.1 |
| April | 67% | 4.6 |
| May | 74% | 5.9 |
| June | 75% | 6.5 |
| July | 90% | 7.4 |
| August | 88% | 6.1 |
| September | 81% | 4.4 |
| October | 71% | 2.6 |
| November | 56% | 1.3 |
| December | 50% | 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 much heating and cooling does Coeur d'Alene need?
A normal year in Coeur d'Alene brings 6,317 heating degree days, 18% more than the median U.S. place (5,373), and 437 cooling degree days, 52% 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 2,202 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,048 | 0 |
| February | 879 | 0 |
| March | 789 | 0 |
| April | 557 | 0 |
| May | 317 | 8 |
| June | 147 | 42 |
| July | 26 | 182 |
| August | 25 | 165 |
| September | 159 | 39 |
| October | 510 | 0 |
| November | 813 | 0 |
| December | 1,048 | 0 |
| Year (annual) | 6,317 | 437 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00101956. 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 Coeur d'Alene been warmer than normal lately?
Over 68 complete years from 1896 to 2019, the station's annual mean temperature rose at a fitted 2.0°F per century (+0.11°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 Coeur d'Alene's climate compare?
Coeur d'Alene is warmer than 61 of the other 84 places with their own NOAA record in Idaho, and wetter than 68. Across the 7,247 U.S. stations with normals, its annual mean of 48.8°F is warmer than 35%.
In the Köppen classification computed from these normals, Coeur d'Alene 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 Coeur d'Alene share this climate record?
13 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.
- Spokane Valley, WAalso near: Spokane (14 mi, 48.6°F a year); Deer Park (23 mi, 45.5°F a year)108,267 people · 20 mi W
- Post Falls, ID45,800 people · 7 mi NW
- Hayden, ID16,924 people · 6 mi N
- Liberty Lake, WA13,353 people · 14 mi W
- Rathdrum, ID12,626 people · 9 mi NW
- Otis Orchards-East Farms, WA5,486 people · 13 mi W
- Dalton Gardens, ID2,498 people · 4 mi N
- Hauser, ID894 people · 12 mi NW
- Hayden Lake, ID672 people · 6 mi N
- Rockford Bay, ID308 people · 13 mi S
- Fernan Lake Village, ID160 people · 2 mi E
- Huetter, ID104 people · 3 mi NW
- State Line, ID38 people · 11 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 Coeur d'Alene's climate
What is the coldest month in Coeur d'Alene?
January, with a normal high of 36°F and a normal low of 26°F. The warmest is July (83°F by day, 57°F at night).
Does it snow in Coeur d'Alene?
Yes. NOAA publishes no 1991-2020 snowfall normal for Coeur d'Alene's NOAA station; the nearest record that keeps one, Bayview Model Basin (23 miles away), records 27 inches of snow in a normal year.
What is the rainiest month in Coeur d'Alene?
December, with 3.47 in of precipitation in a normal year; the driest is July with 0.73 in.
What plant hardiness zone is Coeur d'Alene in?
The USDA's 2023 map puts Coeur d'Alene in zone 6b in ZIP code 83815. By the same method at Coeur d'Alene's NOAA station, the coldest night of a typical year reaches 7°F (17 years, 1991-2020): zone 7b.
How late can frost come in Coeur d'Alene?
In half of years the last 32°F night comes after April 22; in one year in ten it comes after May 6. Waiting until May 6 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Coeur d'Alene in OctoberThis month day by day, its records and recent years
- Idaho climateThe statewide normals and every place in the state
- Bayview Model Basin, ID24 miles from this station, 45.0°F a year
- Plummer, ID27 miles from this station, 46.5°F a year
- St. Maries, ID27 miles from this station, 47.9°F a year
- Kellogg, ID33 miles from this station, 46.7°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made