Climate Comfort Score
37/100
Below Average
NOAA 1991–2020 normals 37°F annual avg 2 stations
Grand Lake, CO Climate
Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score
- 37°F
- Avg annual temp
- 37/100
- Comfort score
- 18.6"
- Annual precip
30-year climate normals from 2 weather stations (1991-2020).
The climate verdict for Grand Lake
Grand Lake, Colorado averages 37°F a year and scores 37/100 on the comfort index - below average, milder than 3% of U.S. cities.
- 37°F
- average temperature, NOAA 1991-2020 normal
- 37/100
- comfort score, milder than 3% of U.S. cities
- 18.6"
- annual precipitation · 155" snow
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
52°F
Avg Low
22°F
Annual Precip
18.6"
Annual Snow
154.9"
Comfort Score
37/100
Below Average
Avg Annual Temperature
37°F
30-year mean (NOAA NCEI)
Annual Precipitation
18.6"
Plus 154.9" of snow
Comfort score vs national 100-point ceiling (Grand Lake) 37.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Below Average for the Grand Lake area.
How Grand Lake compares to every U.S. city
Grand Lake's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
37 Top 97% higher than 3% 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 Grand Lake
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Grand Lake captures average conditions across the spread shown, the most recent decade is 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 | 30°F (-1°C) | 5°F (-15°C) | 17°F (-8°C) | 1.6" | 30.6" | 31.0 | 0.0 |
| February | 34°F (1°C) | 6°F (-14°C) | 20°F (-6°C) | 1.5" | 25.1" | 28.0 | 0.0 |
| March | 42°F (6°C) | 14°F (-10°C) | 28°F (-2°C) | 1.2" | 17.6" | 31.0 | 0.0 |
| April | 49°F (10°C) | 21°F (-6°C) | 35°F (2°C) | 1.6" | 17.1" | 29.6 | 0.0 |
| May | 59°F (15°C) | 28°F (-2°C) | 43°F (6°C) | 1.6" | 5.3" | 25.6 | 0.0 |
| June | 71°F (21°C) | 34°F (1°C) | 52°F (11°C) | 1.4" | 0.4" | 8.8 | 0.0 |
| July | 76°F (24°C) | 40°F (4°C) | 58°F (14°C) | 2.0" | 0.0" | 0.9 | 0.2 |
| August | 73°F (23°C) | 38°F (4°C) | 56°F (13°C) | 2.1" | 0.0" | 1.8 | 0.0 |
| September | 68°F (20°C) | 32°F (0°C) | 50°F (10°C) | 1.6" | 0.4" | 15.6 | 0.0 |
| October | 55°F (13°C) | 23°F (-5°C) | 39°F (4°C) | 1.3" | 7.4" | 28.6 | 0.0 |
| November | 40°F (5°C) | 13°F (-10°C) | 27°F (-3°C) | 1.3" | 22.5" | 29.8 | 0.0 |
| December | 30°F (-1°C) | 5°F (-15°C) | 18°F (-8°C) | 1.5" | 28.5" | 31.0 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 1.6"
Snow: 30.6"
14.8 days with precipitation
February 1.5"
Snow: 25.1"
13.2 days with precipitation
March 1.2"
Snow: 17.6"
11.6 days with precipitation
April 1.6"
Snow: 17.1"
11.1 days with precipitation
May 1.6"
Snow: 5.3"
12.3 days with precipitation
June 1.4"
Snow: 0.4"
10.5 days with precipitation
July 2.0"
13.6 days with precipitation
August 2.1"
15.3 days with precipitation
September 1.6"
Snow: 0.4"
11.9 days with precipitation
October 1.3"
Snow: 7.4"
9.5 days with precipitation
November 1.3"
Snow: 22.5"
10.9 days with precipitation
December 1.5"
Snow: 28.5"
13.8 days with precipitation
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
10,222
Higher = more heating needed
Cooling Degree Days
1
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Grand Lake's climate means for you
Grand Lake runs 37°F a year - peaking in July, coldest in January.
- Energy bills track 10,222 heating and 1 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: Grand Lake, CO
Based on 2 weather stations feeding NOAA's 1991–2020 climate normals, Grand Lake, Colorado averages 37°F a year, ranging from a mean daily high of 52°F to a mean daily low of 22°F. July is typically the warmest month of the year, while January is the coldest. Because these figures are thirty-year averages rather than any single year's readings, they describe the typical month, not a forecast for it.
Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Grand Lake sees about 18.6 inches of precipitation a year, with 154.9 inches typically falling as snow. Growing-season length varies with elevation and microclimate. On the energy side, 10,222 heating degree days and 1 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Grand Lake scores 37/100 (Below Average), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows, shoulder seasons for mild highs and lows, peak summer for July-driven heat, or deep winter for January-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.
Frequently Asked Questions
What is the average temperature in Grand Lake, CO? ▼
The average annual temperature in Grand Lake, Colorado is 37°F. The warmest month averages 76°F (24°C) and the coldest averages 5°F (-15°C).
How much rain does Grand Lake get? ▼
Grand Lake receives 18.6 inches of precipitation annually, including 154.9 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Grand Lake? ▼
Grand Lake has a climate comfort score of 37/100 (Below Average), milder than 3% of U.S. cities in the PlainClimate database.
When is the growing season in Grand Lake? ▼
Growing season data is not available for Grand Lake.
How much energy does heating and cooling require in Grand Lake? ▼
Grand Lake has 10,222 heating degree days and 1 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 Grand Lake climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from 2 weather stations near Grand Lake.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00053496. 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.