Climate Comfort Score
49/100
Moderate
NOAA 1991–2020 normals 52°F annual avg Public-domain federal data
Mtn Home, ID Climate
Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →
- 52°F
- Avg annual temp
- 49/100
- Comfort score
- 159d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Mtn Home
Mtn Home, Idaho averages 52°F a year and scores 49/100 on the comfort index - moderate, milder than 18% of U.S. cities.
- 52°F
- annual average temperature (NOAA normal)
- 49/100
- comfort score, milder than 18% of U.S. cities
- 159 days
- frost-free days per growing season
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
52°F (11°C)
Avg High
66°F
Avg Low
39°F
Annual Precip
N/A
Comfort Score
49/100
Moderate
Avg Annual Temperature
52°F
30-year mean (NOAA NCEI)
Annual Precipitation
N/A
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Mtn Home) 49.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Mtn Home area.
How Mtn Home compares to every U.S. city
Mtn Home's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
49 Top 82% higher than 18% of 6,915 US cities
Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Warming context for Mtn Home
MethodologyThe chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Mtn Home, the NOAA 1991-2020 normal captures average conditions across that spread - notably, the most recent decade runs warmer than the 30-year mean itself.
- United States land mean (NOAA NCEI) +0.11 °C/decade
- Global anomaly (NASA GISTEMP) +0.11 °C/decade
- Paris Agreement thresholds 1.5°C / 2.0°C
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 |
Monthly Precipitation
Average monthly rainfall
January N/A
February N/A
March N/A
April N/A
May N/A
June N/A
July N/A
August N/A
September N/A
October N/A
November N/A
December N/A
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
What Mtn Home's climate means for you
Mtn Home runs 52°F a year - peaking in July, coldest in December.
- Gardeners get about 159 frost-free days, with the last spring freeze near May 2 - plan the planting calendar around it, not the regional average.
- Energy bills track 5,623 heating and 1,021 cooling degree days a year, higher means the furnace or AC runs more.
- Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings
These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.
Climate Guides
Climate Insight: Mtn Home, ID
The NOAA 1991–2020 climate normals describe Mtn Home, Idaho as a location with an annual average temperature of 52°F, ranging from a mean daily high of 66°F to a mean daily low of 39°F. July is typically the warmest month of the year, while December is the coldest. These thirty-year averages, computed from station USC00106174, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.
Beyond temperature, Mtn Home averages an uncharted amount of precipitation annually, predominantly as rainfall - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 159 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 2 and the first fall freeze near October 8. Turning to energy use, 5,623 heating degree days and 1,021 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Mtn Home scores 49/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above turn that into a planning tool: expect the mildest highs and lows in the shoulder seasons, July-driven heat at the peak of summer, and December-driven cold at the depth of winter. Every number here is a thirty-year average, not a forecast, so any given year can and does run warmer, cooler, wetter, or drier than the normal.
Frequently Asked Questions
What is the average temperature in Mtn Home, ID? ▼
The average annual temperature in Mtn Home, Idaho is 52°F. The warmest month averages 95°F (35°C) and the coldest averages 23°F (-5°C).
How much rain does Mtn Home get? ▼
Mtn Home receives an unknown amount of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Mtn Home? ▼
Mtn Home has a climate comfort score of 49/100 (Moderate), milder than 18% of U.S. cities in the PlainClimate database.
When is the growing season in Mtn Home? ▼
Mtn Home has approximately 159 frost-free days per year, with the last spring freeze around May 2 and the first fall freeze around October 8.
How much energy does heating and cooling require in Mtn Home? ▼
Mtn Home has 5,623 heating degree days and 1,021 cooling degree days annually, a heating-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Mtn Home climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00106174 near Mtn Home.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00106174. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial
Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.