Climate Comfort Score
58/100
Moderate
NOAA 1991–2020 normals 54°F annual avg Public-domain federal data
Lewiston Nez Perce CO, ID Climate
Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →
- 54°F
- Avg annual temp
- 58/100
- Comfort score
- 12.9"
- Annual precip
- 203d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Lewiston Nez Perce CO
Lewiston Nez Perce CO, Idaho averages 54°F a year and scores 58/100 on the comfort index - moderate, milder than 38% of U.S. cities.
- 54°F
- yearly average temperature, NOAA normal
- 58/100
- comfort score, milder than 38% of U.S. cities
- 12.9"
- annual precipitation · 13" snow
- 203 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
54°F (12°C)
Avg High
64°F
Avg Low
43°F
Annual Precip
12.9"
Annual Snow
12.7"
Comfort Score
58/100
Moderate
Avg Annual Temperature
54°F
30-year mean (NOAA NCEI)
Annual Precipitation
12.9"
Plus 12.7" of snow
Comfort score vs national 100-point ceiling (Lewiston Nez Perce CO) 58.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Lewiston Nez Perce CO area.
How Lewiston Nez Perce CO compares to every U.S. city
Lewiston Nez Perce CO's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
58 Top 62% higher than 38% 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 Lewiston Nez Perce CO
MethodologyLewiston Nez Perce CO's NOAA 1991-2020 normal sits inside a longer story: U.S. land temperatures have been tracking (and drifting from) the global mean since 1900, and the chart below shows that spread, with the most recent decade running warmer than the 30-year mean.
- 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 | 42°F (6°C) | 30°F (-1°C) | 36°F (2°C) | 1.1" | 2.7" | 18.1 | 0.0 |
| February | 47°F (8°C) | 32°F (0°C) | 39°F (4°C) | 1.0" | 3.8" | 15.1 | 0.0 |
| March | 55°F (13°C) | 36°F (2°C) | 45°F (7°C) | 1.3" | 0.8" | 9.1 | 0.0 |
| April | 62°F (17°C) | 41°F (5°C) | 52°F (11°C) | 1.4" | 0.0" | 2.4 | 0.0 |
| May | 72°F (22°C) | 48°F (9°C) | 60°F (16°C) | 1.7" | 0.0" | 0.0 | 1.0 |
| June | 79°F (26°C) | 54°F (12°C) | 67°F (19°C) | 1.3" | 0.0" | 0.0 | 4.1 |
| July | 91°F (33°C) | 61°F (16°C) | 76°F (24°C) | 0.5" | 0.0" | 0.0 | 17.6 |
| August | 90°F (32°C) | 60°F (16°C) | 75°F (24°C) | 0.5" | 0.0" | 0.0 | 16.9 |
| September | 80°F (26°C) | 52°F (11°C) | 66°F (19°C) | 0.6" | 0.0" | 0.0 | 4.4 |
| October | 63°F (17°C) | 42°F (6°C) | 53°F (11°C) | 1.1" | 0.0" | 2.7 | 0.0 |
| November | 49°F (9°C) | 35°F (1°C) | 42°F (5°C) | 1.2" | 1.3" | 11.9 | 0.0 |
| December | 41°F (5°C) | 30°F (-1°C) | 35°F (2°C) | 1.1" | 4.1" | 20.4 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 1.1"
Snow: 2.7"
11.2 days with precipitation
February 1.0"
Snow: 3.8"
9.6 days with precipitation
March 1.3"
Snow: 0.8"
11.7 days with precipitation
April 1.4"
11.3 days with precipitation
May 1.7"
10.6 days with precipitation
June 1.3"
8.9 days with precipitation
July 0.5"
3.9 days with precipitation
August 0.5"
3.4 days with precipitation
September 0.6"
4.7 days with precipitation
October 1.1"
8.7 days with precipitation
November 1.2"
Snow: 1.3"
11.1 days with precipitation
December 1.1"
Snow: 4.1"
11.1 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 26
50% probability date
Last Spring Freeze
April 6
50% probability date
Growing Season
203 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,980
Higher = more heating needed
Cooling Degree Days
913
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Humidity & Wind
Monthly averages from hourly observations
| Month | Humidity | Wind (mph) | Clear Sky % | Overcast % |
|---|---|---|---|---|
| January | 71% | 6.1 | 33% | 46% |
| February | 65% | 5.7 | 39% | 35% |
| March | 60% | 5.9 | 40% | 29% |
| April | 53% | 5.9 | 52% | 23% |
| May | 53% | 5.4 | 53% | 20% |
| June | 43% | 5.5 | 74% | 8% |
| July | 32% | 5.4 | 87% | 3% |
| August | 38% | 5.0 | 79% | 6% |
| September | 49% | 4.6 | 72% | 12% |
| October | 67% | 4.7 | 51% | 28% |
| November | 74% | 5.7 | 35% | 45% |
| December | 74% | 6.1 | 28% | 54% |
What Lewiston Nez Perce CO's climate means for you
Lewiston Nez Perce CO runs 54°F a year - peaking in July, coldest in December.
- Gardeners get about 203 frost-free days, with the last spring freeze near April 6 - plan the planting calendar around it, not the regional average.
- Energy bills track 4,980 heating and 913 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: Lewiston Nez Perce CO, ID
Lewiston Nez Perce CO, Idaho runs an annual average of 54°F, ranging from a mean daily high of 64°F to a mean daily low of 43°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 USW00024149, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.
Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Lewiston Nez Perce CO receives roughly 12.9 inches of precipitation each year, with 12.7 inches typically falling as snow. The frost-free season averages 203 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 6 and the first fall freeze near October 26. For energy use, 4,980 heating degree days and 913 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Lewiston Nez Perce CO scores 58/100 (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 Lewiston Nez Perce CO, ID? ▼
The average annual temperature in Lewiston Nez Perce CO, Idaho is 54°F. The warmest month averages 91°F (33°C) and the coldest averages 30°F (-1°C).
How much rain does Lewiston Nez Perce CO get? ▼
Lewiston Nez Perce CO receives 12.9 inches of precipitation annually, including 12.7 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Lewiston Nez Perce CO? ▼
Lewiston Nez Perce CO has a climate comfort score of 58/100 (Moderate), milder than 38% of U.S. cities in the PlainClimate database.
When is the growing season in Lewiston Nez Perce CO? ▼
Lewiston Nez Perce CO has approximately 203 frost-free days per year, with the last spring freeze around April 6 and the first fall freeze around October 26.
How much energy does heating and cooling require in Lewiston Nez Perce CO? ▼
Lewiston Nez Perce CO has 4,980 heating degree days and 913 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 Lewiston Nez Perce CO climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00024149 near Lewiston Nez Perce CO.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00024149. 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.