Climate Comfort Score
57/100
Moderate
NOAA 1991–2020 normals 37°F annual avg Public-domain federal data
Island Park, ID Climate
Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →
- 37°F
- Avg annual temp
- 57/100
- Comfort score
- 28.8"
- Annual precip
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Island Park
Island Park, Idaho averages 37°F a year and scores 57/100 on the comfort index - moderate, milder than 37% of U.S. cities.
- 37°F
- average temperature, NOAA 1991-2020 normal
- 57/100
- comfort score, milder than 37% of U.S. cities
- 28.8"
- precipitation, annual total
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
37°F (3°C)
Avg High
50°F
Avg Low
23°F
Annual Precip
28.8"
Comfort Score
57/100
Moderate
Avg Annual Temperature
37°F
30-year mean (NOAA NCEI)
Annual Precipitation
28.8"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Island Park) 57.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Island Park area.
How Island Park compares to every U.S. city
Island Park's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
57 Top 63% higher than 37% 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 Island Park
MethodologyThe chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Island Park, 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 | 27°F (-3°C) | 6°F (-14°C) | 16°F (-9°C) | 3.5" | 30.9 | 0.0 |
| February | 30°F (-1°C) | 8°F (-14°C) | 19°F (-7°C) | 2.6" | 28.0 | 0.0 |
| March | 39°F (4°C) | 15°F (-10°C) | 27°F (-3°C) | 2.0" | 30.3 | 0.0 |
| April | 47°F (9°C) | 23°F (-5°C) | 35°F (2°C) | 2.4" | 27.6 | 0.0 |
| May | 59°F (15°C) | 32°F (0°C) | 45°F (7°C) | 3.0" | 17.2 | 0.0 |
| June | 67°F (20°C) | 38°F (3°C) | 53°F (11°C) | 2.6" | 5.8 | 0.1 |
| July | 77°F (25°C) | 43°F (6°C) | 60°F (16°C) | 1.2" | 1.1 | 1.5 |
| August | 77°F (25°C) | 40°F (4°C) | 59°F (15°C) | 1.1" | 3.0 | 0.9 |
| September | 68°F (20°C) | 32°F (0°C) | 50°F (10°C) | 1.7" | 15.7 | 0.0 |
| October | 51°F (11°C) | 24°F (-4°C) | 38°F (3°C) | 2.1" | 27.1 | 0.0 |
| November | 36°F (2°C) | 14°F (-10°C) | 25°F (-4°C) | 2.5" | 29.4 | 0.0 |
| December | 26°F (-4°C) | 6°F (-14°C) | 16°F (-9°C) | 4.0" | 31.0 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 3.5"
February 2.6"
March 2.0"
April 2.4"
May 3.0"
June 2.6"
July 1.2"
August 1.1"
September 1.7"
October 2.1"
November 2.5"
December 4.0"
Frost Dates & Growing Season
First Fall Freeze
N/A
50% probability date
Last Spring Freeze
N/A
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
10,272
Higher = more heating needed
Cooling Degree Days
23
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
What Island Park's climate means for you
Island Park runs 37°F a year - peaking in July, coldest in December.
- Energy bills track 10,272 heating and 23 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: Island Park, ID
An annual average temperature of 37°F, ranging from a mean daily high of 50°F to a mean daily low of 23°F is what the NOAA 1991–2020 climate normals report for Island Park, Idaho. July is typically the warmest month of the year, while December is the coldest. That baseline comes from station USC00104598 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.
Beyond temperature, Island Park averages 28.8 inches of precipitation annually, predominantly as rainfall - a real factor for anyone planning to live, garden, or travel here. Growing-season length varies with elevation and microclimate. Turning to energy use, 10,272 heating degree days and 23 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Island Park scores 57/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Shoulder seasons bring the mildest highs and lows in the monthly tables above, summer brings July-driven heat, and winter brings December-driven cold - use that rhythm for planning. These figures are thirty-year averages rather than forecasts, so a specific year may still run warmer, cooler, wetter, or drier than what's shown.
Frequently Asked Questions
What is the average temperature in Island Park, ID? ▼
The average annual temperature in Island Park, Idaho is 37°F. The warmest month averages 77°F (25°C) and the coldest averages 6°F (-14°C).
How much rain does Island Park get? ▼
Island Park receives 28.8 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Island Park? ▼
Island Park has a climate comfort score of 57/100 (Moderate), milder than 37% of U.S. cities in the PlainClimate database.
When is the growing season in Island Park? ▼
Growing season data is not available for Island Park.
How much energy does heating and cooling require in Island Park? ▼
Island Park has 10,272 heating degree days and 23 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 Island Park climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00104598 near Island Park.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00104598. 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.