Climate Comfort Score
54/100
Moderate
NOAA 1991–2020 normals 50°F annual avg Public-domain federal data
Riggins, ID Climate
Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →
- 50°F
- Avg annual temp
- 54/100
- Comfort score
- 17.4"
- Annual precip
- 156d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Riggins
Riggins, Idaho averages 50°F a year and scores 54/100 on the comfort index - moderate, milder than 27% of U.S. cities.
- 50°F
- average temperature, NOAA 1991-2020 normal
- 54/100
- comfort score, milder than 27% of U.S. cities
- 17.4"
- annual precipitation · 7" snow
- 156 days
- growing season, frost-free days
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
50°F (10°C)
Avg High
64°F
Avg Low
37°F
Annual Precip
17.4"
Annual Snow
7.1"
Comfort Score
54/100
Moderate
Avg Annual Temperature
50°F
30-year mean (NOAA NCEI)
Annual Precipitation
17.4"
Plus 7.1" of snow
Comfort score vs national 100-point ceiling (Riggins) 54.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Riggins area.
How Riggins compares to every U.S. city
Riggins's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
54 Top 73% higher than 27% 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 Riggins
MethodologyThe chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Riggins, 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 | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 41°F (5°C) | 25°F (-4°C) | 33°F (0°C) | 1.3" | 2.1" | 20.6 | 0.0 |
| February | 46°F (8°C) | 26°F (-4°C) | 36°F (2°C) | 1.4" | 2.3" | 17.6 | 0.0 |
| March | 55°F (13°C) | 30°F (-1°C) | 43°F (6°C) | 1.8" | 0.1" | 11.6 | 0.0 |
| April | 62°F (17°C) | 35°F (1°C) | 48°F (9°C) | 2.0" | 0.0" | 4.3 | 0.2 |
| May | 71°F (22°C) | 41°F (5°C) | 56°F (13°C) | 2.2" | 0.0" | 0.4 | 2.4 |
| June | 78°F (25°C) | 47°F (8°C) | 62°F (17°C) | 1.7" | 0.0" | 0.0 | 6.0 |
| July | 90°F (32°C) | 52°F (11°C) | 71°F (22°C) | 0.8" | 0.0" | 0.0 | 20.1 |
| August | 90°F (32°C) | 52°F (11°C) | 71°F (22°C) | 0.7" | 0.0" | 0.0 | 20.4 |
| September | 80°F (26°C) | 45°F (7°C) | 62°F (17°C) | 1.2" | 0.0" | 0.1 | 7.6 |
| October | 64°F (18°C) | 36°F (2°C) | 50°F (10°C) | 1.5" | 0.0" | 3.7 | 0.4 |
| November | 48°F (9°C) | 29°F (-2°C) | 39°F (4°C) | 1.4" | 0.6" | 12.9 | 0.0 |
| December | 40°F (4°C) | 25°F (-4°C) | 32°F (0°C) | 1.4" | 2.0" | 20.8 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 1.3"
Snow: 2.1"
11.5 days with precipitation
February 1.4"
Snow: 2.3"
9.6 days with precipitation
March 1.8"
Snow: 0.1"
12.7 days with precipitation
April 2.0"
13.5 days with precipitation
May 2.2"
12.5 days with precipitation
June 1.7"
10.2 days with precipitation
July 0.8"
4.6 days with precipitation
August 0.7"
4.3 days with precipitation
September 1.2"
5.2 days with precipitation
October 1.5"
8.3 days with precipitation
November 1.4"
Snow: 0.6"
11.5 days with precipitation
December 1.4"
Snow: 2.0"
11.7 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 9
50% probability date
Last Spring Freeze
May 6
50% probability date
Growing Season
156 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,907
Higher = more heating needed
Cooling Degree Days
552
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
What Riggins's climate means for you
Riggins runs 50°F a year - peaking in July, coldest in December.
- Gardeners get about 156 frost-free days, with the last spring freeze near May 6 - plan the planting calendar around it, not the regional average.
- Energy bills track 5,907 heating and 552 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: Riggins, ID
Riggins, Idaho runs an annual average of 50°F, ranging from a mean daily high of 64°F to a mean daily low of 37°F, per NOAA's 1991–2020 climate normals. July is typically the warmest month of the year, while December is the coldest. Drawn from station USC00107706, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.
Anyone planning to live, garden, or travel in Riggins should weigh precipitation alongside temperature: the annual average runs 17.4 inches, with 7.1 inches typically falling as snow. The frost-free season averages 156 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 6 and the first fall freeze near October 9. And on the energy front, 5,907 heating degree days and 552 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Riggins scores 54/100 (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 Riggins, ID? ▼
The average annual temperature in Riggins, Idaho is 50°F. The warmest month averages 90°F (32°C) and the coldest averages 25°F (-4°C).
How much rain does Riggins get? ▼
Riggins receives 17.4 inches of precipitation annually, including 7.1 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Riggins? ▼
Riggins has a climate comfort score of 54/100 (Moderate), milder than 27% of U.S. cities in the PlainClimate database.
When is the growing season in Riggins? ▼
Riggins has approximately 156 frost-free days per year, with the last spring freeze around May 6 and the first fall freeze around October 9.
How much energy does heating and cooling require in Riggins? ▼
Riggins has 5,907 heating degree days and 552 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 Riggins climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00107706 near Riggins.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00107706. 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.