Shoshone, Idaho climate: Normal weather by month, frost dates and records
Shoshone's normal year runs from 23°F January nights to 94°F July afternoons, with 10.5 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 11.5°C, January lows of −5°C, July highs of 35°C, 266 mm of precipitation a year.
- NOAA stationShoshone (1 mi WNW)
- Station IDUSC00108380
- Location42.94°N 114.42°W
- Elevation3,950 ft (1,204 m)
- Population1,757
On October 22, the normal high in Shoshone is 63°F and the normal low 38°F, and the chance of measurable rain or snow is 14%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Shoshone.
- Jan 37° 23°
- Feb 43° 26°
- Mar 55° 33°
- Apr 64° 38°
- May 74° 47°
- Jun 84° 54°
- Jul 94° 62°
- Aug 92° 60°
- Sep 81° 51°
- Oct 66° 40°
- Nov 50° 31°
- Dec 38° 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 Shoshone each month?
July is the warmest month, with normal highs of 94°F; January the coldest, with normal lows of 23°F. The most precipitation falls in December (1.72 in), the least in July (0.16 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 37°F | 23°F | 30.2°F | 1.57 | 8 | <1 | 29 | 9 h 20 min |
| February | 43°F | 26°F | 34.6°F | 0.90 | 7 | <1 | 25 | 10 h 30 min |
| March | 55°F | 33°F | 43.6°F | 1.14 | 7 | <1 | 21 | 11 h 50 min |
| April | 64°F | 38°F | 50.8°F | 0.81 | 7 | <1 | 12 | 13 h 20 min |
| May | 74°F | 47°F | 60.2°F | 1.07 | 6 | 1 | 2 | 14 h 40 min |
| June | 84°F | 54°F | 68.8°F | 0.56 | 4 | 7 | <1 | 15 h 20 min |
| July | 94°F | 62°F | 77.9°F | 0.16 | 1 | 22 | <1 | 15 h |
| August | 92°F | 60°F | 76.2°F | 0.30 | 2 | 19 | <1 | 14 h |
| September | 81°F | 51°F | 66.1°F | 0.46 | 3 | 4 | 1 | 12 h 30 min |
| October | 66°F | 40°F | 53.1°F | 0.76 | 4 | <1 | 9 | 11 h 10 min |
| November | 50°F | 31°F | 40.3°F | 1.02 | 6 | <1 | 21 | 9 h 50 min |
| December | 38°F | 24°F | 30.7°F | 1.72 | 8 | <1 | 29 | 9 h |
| Year (annual) | 65°F | 41°F | 52.7°F | 10.47 | 62 | 53 | 149 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 3°C | −5°C | −1.0°C | 40 mm |
| February | 6°C | −3°C | 1.4°C | 23 mm |
| March | 13°C | 0°C | 6.4°C | 29 mm |
| April | 18°C | 3°C | 10.4°C | 21 mm |
| May | 23°C | 8°C | 15.7°C | 27 mm |
| June | 29°C | 12°C | 20.4°C | 14 mm |
| July | 35°C | 17°C | 25.5°C | 4 mm |
| August | 34°C | 16°C | 24.6°C | 8 mm |
| September | 27°C | 11°C | 18.9°C | 12 mm |
| October | 19°C | 5°C | 11.7°C | 19 mm |
| November | 10°C | 0°C | 4.6°C | 26 mm |
| December | 3°C | −5°C | −0.7°C | 44 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Richfield (15 miles away), gets 29 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00108380; 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 Shoshone?
Normal highs sit between 65°F and 85°F in May, June, September and October. Of those, September has the fewest days with rain (3).
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 USC00108380.
When is the last frost in Shoshone?
In Shoshone, the last spring frost (32°F) comes after April 24 in half of years and after May 12 in one year in ten; the first autumn frost comes before October 16 in half of years and before October 2 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 241 year in 10 after May 12; 9 in 10 after April 9
- First autumn frost, half of years before
- October 161 year in 10 before October 2; 9 in 10 before November 1
NOAA puts the median frost-free season at 173 days, and the season without a hard freeze (28°F) at 198 days.
A hard freeze (28°F) comes after April 9 in half of springs and before October 26 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Shoshone in zone 6a in ZIP code 83352, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Shoshone's NOAA station is in zone 6b: the coldest night of a typical year reaches −3°F (19 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 USC00108380; 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 Shoshone?
In a normal year in Shoshone, 53 days a year reach 90°F (7 of them 100°F or more), 149 nights fall to 32°F or colder and 62 days bring measurable precipitation.
- Days at 90°F or more
- 53a normal year
- Days at 100°F or more
- 7a normal year
- Nights at 32°F or colder
- 149a normal year
- Days that stay below freezing
- 25high of 32°F or less
- Days with 0.01 inch of precipitation
- 62a normal year
The highest temperature in this station's record (since 1908) is 109°F, on July 19, 1960; the lowest is −36°F, on January 21, 1937.
The wettest calendar year on that record is 1909, with 16.10 in; the snowiest season is 1935–36, with 87.8 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00108380; records: ACIS (NOAA Regional Climate Centers), station USC00108380. Records use complete months only; a month missing more than three days is left out.
How sunny is Shoshone?
Over a year 81% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Shoshone, 4.6 kWh per square metre a day. July is the sunniest month (90%) and December the cloudiest (62%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 69% | 1.9 |
| February | 69% | 2.8 |
| March | 72% | 4.0 |
| April | 76% | 5.5 |
| May | 80% | 6.7 |
| June | 86% | 7.6 |
| July | 90% | 7.6 |
| August | 89% | 6.6 |
| September | 87% | 5.3 |
| October | 82% | 3.6 |
| November | 73% | 2.2 |
| December | 62% | 1.5 |
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 Shoshone need?
A normal year in Shoshone brings 5,541 heating degree days, 3% more than the median U.S. place (5,373), and 1,095 cooling degree days, 21% more 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 3,355 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,077 | 0 |
| February | 852 | 0 |
| March | 664 | 0 |
| April | 429 | 4 |
| May | 195 | 47 |
| June | 52 | 165 |
| July | 3 | 403 |
| August | 7 | 353 |
| September | 81 | 115 |
| October | 379 | 8 |
| November | 741 | 0 |
| December | 1,061 | 0 |
| Year (annual) | 5,541 | 1,095 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00108380. 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 Shoshone been warmer than normal lately?
2025 averaged 54.9°F, 2.2°F above the 1991-2020 normal of 52.7°F. 4 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 54.6°F | +1.9°F | 7.76 |
| 2023 | 53.0°F | +0.3°F | 11.58 |
| 2024 | 54.3°F | +1.6°F | 9.18 |
| 2025 | 54.9°F | +2.2°F | 8.09 |
Over 34 complete years from 1949 to 2025, the station's annual mean temperature rose at a fitted 2.3°F per century (+0.13°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00108380; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Shoshone's climate compare?
Shoshone is warmer than 78 of the other 84 places with their own NOAA record in Idaho, and wetter than 18. Across the 7,247 U.S. stations with normals, its annual mean of 52.7°F is warmer than 52%.
In the Köppen classification computed from these normals, Shoshone is BSk: cold semi-arid steppe. 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 Shoshone share this climate record?
Dietrich has no NOAA station with 1991-2020 normals of its 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.
- Dietrich, ID311 people · 8 mi E
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 Shoshone's climate
What is the coldest month in Shoshone?
January, with a normal high of 37°F and a normal low of 23°F. The warmest is July (94°F by day, 62°F at night).
Does it snow in Shoshone?
Yes. NOAA publishes no 1991-2020 snowfall normal for Shoshone's NOAA station; the nearest record that keeps one, Richfield (15 miles away), records 29 inches of snow in a normal year.
What is the rainiest month in Shoshone?
December, with 1.72 in of precipitation in a normal year; the driest is July with 0.16 in.
What plant hardiness zone is Shoshone in?
The USDA's 2023 map puts Shoshone in zone 6a in ZIP code 83352, the nearest ZIP area. By the same method at Shoshone's NOAA station, the coldest night of a typical year reaches −3°F (19 years, 1991-2020): zone 6b.
How late can frost come in Shoshone?
In half of years the last 32°F night comes after April 24; 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
- Jerome, ID15 miles from this station, 50.2°F a year
- Richfield, ID16 miles from this station, 46.1°F a year
- Twin Falls-KMVT, ID25 miles from this station, 51.6°F a year
- Hagerman, ID27 miles from this station, 50.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made