Mtn Home, ID Climate: Temperature by Month
Average temperature and precipitation from NOAA NCEI 1991–2020 normals →, with a derived climate comfort score
30-year climate normals (1991-2020) from Mtn Home's primary NOAA station, MTN HOME.
The climate verdict for Mtn Home
Mtn Home, Idaho has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 52°F. July is the warmest month at 77°F and December the coldest at 31°F.
- 52°F
- annual average temperature (NOAA normal)
- 159 days
- frost-free days per growing season
Mtn Home: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00106174 · Mtn Home, ID 52°F mean
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-UNK · SWING-WIDE · COMF-UNK · LOAD-HEAT · STN-1 · BOOK-PART
- TEMP-COOL 52°F
- RANK-MID #3,431
- PHOTO-FINISH ≈ Weiser
- PRCP-UNK Rain n/a
- SWING-WIDE 46°F
- COMF-UNK Comfort n/a
- LOAD-HEAT 5,623 HDD
- STN-1 USC00106174
- BOOK-PART 4/6 fields
Nearest mean-temperature peer: Weiser, ID (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every ID station list.
- Mtn Home (this station) 52°F
- Cold Lincoln, IL 52°F
- Hot Weiser, ID 52°F
- Near Fruita, CO 52°F
- Near Toledo Express, OH 52°F
Climate Living Index · Mtn Home
Mtn Home: 31/100 · grade F
Mtn Home publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Mtn Home, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Annual temperature balance | 52.3°F · 15.2° from 67.5°F | 50/100 · D |
| Frost-free season | 159 days/year | 33/100 · F |
| Normal heat + freeze calendar | 205 calendar days | 11/100 · F |
Mtn Home · 2026-08-04 · NOAA NCEI Climate Normals · method .
National standing · heating-led station
Where Mtn Home sits across the climate record
Available NOAA 1991–2020 fields for Mtn Home are ranked only against stations that publish the same field, missing metrics stay blank rather than estimated.
- Annual temperature
- 50th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Seasonal temperature swing
- 64th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 40°F (4°C) | 23°F (-5°C) | 32°F (0°C) | N/A | 27.5 | 0.0 |
| February | 47°F (8°C) | 26°F (-3°C) | 36°F (2°C) | N/A | 23.2 | 0.0 |
| March | 56°F (13°C) | 30°F (-1°C) | 43°F (6°C) | N/A | 18.5 | 0.0 |
| April | 63°F (17°C) | 36°F (2°C) | 49°F (10°C) | N/A | 9.9 | 0.1 |
| May | 74°F (23°C) | 45°F (7°C) | 59°F (15°C) | N/A | 1.5 | 2.7 |
| June | 84°F (29°C) | 52°F (11°C) | 68°F (20°C) | N/A | 0.2 | 9.1 |
| July | 95°F (35°C) | 60°F (15°C) | 77°F (25°C) | N/A | 0.0 | 23.2 |
| August | 93°F (34°C) | 58°F (14°C) | 75°F (24°C) | N/A | 0.0 | 22.6 |
| September | 82°F (28°C) | 48°F (9°C) | 65°F (18°C) | N/A | 1.0 | 7.4 |
| October | 67°F (19°C) | 37°F (3°C) | 52°F (11°C) | N/A | 9.7 | 0.2 |
| November | 50°F (10°C) | 28°F (-2°C) | 39°F (4°C) | N/A | 21.3 | 0.0 |
| December | 39°F (4°C) | 23°F (-5°C) | 31°F (0°C) | N/A | 26.3 | 0.0 |
The year, day by day
Mtn Home works both ends of the calendar. Normal highs climb to 97°F by July 26 and hold at or above 90°F on 56 dates, then normal lows drop to freezing or below on 149 dates, bottoming at 23°F around January 1.
When the heat sits
Normal highs reach 90°F from July 1 through August 25, covering 56 dates. The broader mild season, normal highs of 70°F or more, runs May 7 to October 11.
This counts calendar dates whose 1991–2020 normal high reaches 90°F. It is a smaller number than the 90°F+ day counts in the monthly table above, which measure how often the threshold was actually crossed in a typical year. A date can average 88°F and still exceed 90°F in half of all years.
The freezing stretch
The normal low stays at or below 32°F into March 26, then returns to freezing around October 30, covering 149 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
The widest day
July 28 carries the biggest normal gap between afternoon and dawn, 36°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Mtn Home.
Where Mtn Home Stands Nationally
Day-to-night contrast is extreme by national standards — the widest normal daily swing reaches about 36°F, sharper than nine in ten ranked stations see.
Mtn Home earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall
Frost Dates & Growing Season
First Fall Freeze
October 8
50% probability date
Last Spring Freeze
May 2
50% probability date
Growing Season
159 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,623
Higher = more heating needed
Cooling Degree Days
1,021
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside ID closest to Mtn Home on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (52°F here).
- Albany, MO 52°F · 0.0°F off
- Avondale, PA 52°F · 0.0°F off
- Benkelman, NE 52°F · 0.0°F off
- Bremerton, WA 52°F · 0.0°F off
Data-derived climate profile
How Mtn Home's climate pattern fits together
heating led · mid swing
Mtn Home's energy balance leans toward cold weather: 5,623 annual heating degree days against 1,021 for cooling. Its 46.1°F seasonal range still makes the monthly rows more useful than the annual average alone.
Mtn Home's frost-free season lasts about 159 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
July and December mark the typical warm and cold ends of the calendar in Mtn Home's middle-range seasonal profile. The measured spread is 46.1°F. The annual average is 52°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
A moisture-range label is withheld because Mtn Home's annual precipitation total is unavailable. Monthly source values remain visible where NOAA provides them, and no annual amount is reconstructed from incomplete data.
These labels group NOAA 1991-2020 normals from Mtn Home's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for Mtn Home, not an official NOAA class or a year-ahead forecast.
Questions about Mtn Home's climate
How many days above 90°F does Mtn Home get? ▼
How much energy does heating and cooling require in Mtn Home? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Mtn Home's primary station: MTN HOME (USC00106174). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Mtn Home; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Mtn Home comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.