Kamiah, Idaho climate: Normal weather by month, frost dates and records
Kamiah's normal year runs from 26°F December nights to 90°F July afternoons, with 24.0 inches of precipitation and 11 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 10.5°C, December lows of −3°C, July highs of 32°C, 610 mm of precipitation a year.
- NOAA stationKamiah
- Station IDUSC00104793
- Location46.23°N 116.03°W
- Elevation1,210 ft (369 m)
- From the centerunder 1 mile
- Population1,163
On October 22, the normal high in Kamiah is 58°F and the normal low 36°F, and the chance of measurable rain or snow is 34%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Kamiah.
- Jan 38° 26°
- Feb 46° 30°
- Mar 55° 33°
- Apr 63° 37°
- May 73° 44°
- Jun 79° 50°
- Jul 90° 52°
- Aug 91° 52°
- Sep 80° 46°
- Oct 62° 38°
- Nov 45° 31°
- 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 Kamiah each month?
July is the warmest month, with normal highs of 90°F; December the coldest, with normal lows of 26°F. The most precipitation falls in November (2.84 in), the least in August (0.73 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 38°F | 26°F | 32.0°F | 2.08 | 2.7 | 12 | <1 | 24 | 9 h |
| February | 46°F | 30°F | 38.2°F | 1.92 | 2.0 | 11 | <1 | 19 | 10 h 20 min |
| March | 55°F | 33°F | 43.8°F | 2.69 | 0.5 | 12 | <1 | 16 | 11 h 50 min |
| April | 63°F | 37°F | 50.2°F | 2.78 | 0.0 | 13 | <1 | 8 | 13 h 30 min |
| May | 73°F | 44°F | 58.5°F | 2.79 | 0.0 | 10 | 1 | 3 | 15 h |
| June | 79°F | 50°F | 64.4°F | 2.29 | 0.0 | 9 | 5 | <1 | 15 h 50 min |
| July | 90°F | 52°F | 71.4°F | 0.87 | 0.0 | 4 | 22 | <1 | 15 h 30 min |
| August | 91°F | 52°F | 71.4°F | 0.73 | 0.0 | 4 | 21 | <1 | 14 h 10 min |
| September | 80°F | 46°F | 62.6°F | 1.15 | 0.0 | 6 | 6 | 1 | 12 h 40 min |
| October | 62°F | 38°F | 49.6°F | 1.89 | 0.0 | 10 | <1 | 9 | 11 h |
| November | 45°F | 31°F | 37.9°F | 2.84 | 0.4 | 12 | <1 | 16 | 9 h 30 min |
| December | 36°F | 26°F | 31.0°F | 1.98 | 5.7 | 12 | <1 | 25 | 8 h 40 min |
| Year (annual) | 63°F | 39°F | 50.9°F | 24.01 | 11.3 | 115 | 56 | 120 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 3°C | −3°C | 0.0°C | 53 mm | 7 cm |
| February | 8°C | −1°C | 3.4°C | 49 mm | 5 cm |
| March | 13°C | 0°C | 6.6°C | 68 mm | 1 cm |
| April | 17°C | 3°C | 10.1°C | 71 mm | 0 cm |
| May | 23°C | 7°C | 14.7°C | 71 mm | 0 cm |
| June | 26°C | 10°C | 18.0°C | 58 mm | 0 cm |
| July | 32°C | 11°C | 21.9°C | 22 mm | 0 cm |
| August | 33°C | 11°C | 21.9°C | 19 mm | 0 cm |
| September | 27°C | 8°C | 17.0°C | 29 mm | 0 cm |
| October | 17°C | 3°C | 9.8°C | 48 mm | 0 cm |
| November | 7°C | −1°C | 3.3°C | 72 mm | 1 cm |
| December | 2°C | −3°C | −0.6°C | 50 mm | 14 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00104793; 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 Kamiah?
Normal highs sit between 65°F and 85°F in May, June and September. Of those, September has the fewest days with rain (6).
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 USC00104793.
When is the last frost in Kamiah?
In Kamiah, the last spring frost (32°F) comes after April 29 in half of years and after May 12 in one year in ten; the first autumn frost comes before October 5 in half of years and before September 22 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 291 year in 10 after May 12; 9 in 10 after April 9
- First autumn frost, half of years before
- October 51 year in 10 before September 22; 9 in 10 before October 24
NOAA puts the median frost-free season at 163 days, and the season without a hard freeze (28°F) at 196 days.
A hard freeze (28°F) comes after April 7 in half of springs and before October 20 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Kamiah in zone 7a in ZIP code 83536, the nearest ZIP area.
Frost dates for every NOAA station in Idaho · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00104793; 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 Kamiah?
In a normal year in Kamiah, 56 days a year reach 90°F (11 of them 100°F or more), 120 nights fall to 32°F or colder and 115 days bring measurable precipitation.
- Days at 90°F or more
- 56a normal year
- Days at 100°F or more
- 11a normal year
- Nights at 32°F or colder
- 120a normal year
- Days that stay below freezing
- 12high of 32°F or less
- Days with 0.01 inch of precipitation
- 115a normal year
- Days with 1 inch of snow or more
- 5a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00104793.
How sunny is Kamiah?
Over a year 76% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Kamiah, 4.0 kWh per square metre a day. July is the sunniest month (91%) and December the cloudiest (55%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 59% | 1.3 |
| February | 64% | 2.2 |
| March | 64% | 3.3 |
| April | 70% | 4.8 |
| May | 75% | 6.0 |
| June | 78% | 6.8 |
| July | 91% | 7.5 |
| August | 88% | 6.2 |
| September | 83% | 4.5 |
| October | 73% | 2.8 |
| November | 61% | 1.5 |
| December | 55% | 1.0 |
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 Kamiah need?
A normal year in Kamiah brings 5,662 heating degree days, 5% more than the median U.S. place (5,373), and 549 cooling degree days, 39% 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 2,589 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,025 | 0 |
| February | 751 | 0 |
| March | 656 | 0 |
| April | 446 | 1 |
| May | 215 | 15 |
| June | 80 | 62 |
| July | 12 | 209 |
| August | 10 | 209 |
| September | 123 | 52 |
| October | 477 | 1 |
| November | 813 | 0 |
| December | 1,054 | 0 |
| Year (annual) | 5,662 | 549 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00104793. 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.
How does Kamiah's climate compare?
Kamiah is warmer than 71 of the other 84 places with their own NOAA record in Idaho, and wetter than 65. Across the 7,247 U.S. stations with normals, its annual mean of 50.9°F is warmer than 44%.
In the Köppen classification computed from these normals, Kamiah 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.
Questions about Kamiah's climate
What is the coldest month in Kamiah?
December, with a normal high of 36°F and a normal low of 26°F. The warmest is July (90°F by day, 52°F at night).
Does it snow in Kamiah?
Yes: 11 inches in a normal year, falling on 5 days with 0.1 inch or more, the most in December (5.7 inches).
What is the rainiest month in Kamiah?
November, with 2.84 in of precipitation in a normal year; the driest is August with 0.73 in.
What plant hardiness zone is Kamiah in?
The USDA's 2023 map puts Kamiah in zone 7a in ZIP code 83536, the nearest ZIP area.
How late can frost come in Kamiah?
In half of years the last 32°F night comes after April 29; in one year in ten it comes after May 12. Waiting until May 12 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Idaho climateThe statewide normals and every place in the state
- Nezperce, ID10 miles from this station, 44.9°F a year
- Kooskia, ID12 miles from this station, 49.2°F a year
- Grangeville, ID21 miles from this station, 47.5°F a year
- Pierce, ID21 miles from this station, 43.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made