PlainClimate
NOAA 1991–2020 normals 45°F annual avg Public-domain federal data

Great Sand Dunes NP & Preserve, CO Climate

Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score

45°F
Avg annual temp
39/100
Comfort score
12.2"
Annual precip
133d
Growing season

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for Great Sand Dunes NP & Preserve

Great Sand Dunes NP & Preserve, Colorado averages 45°F a year and scores 39/100 on the comfort index - below average, milder than 4% of U.S. cities.

45°F
average temperature, NOAA 1991-2020 normal
39/100
comfort score, milder than 4% of U.S. cities
12.2"
annual precipitation · 48" snow
133 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

45°F (7°C)

Avg High

58°F

Avg Low

32°F

Annual Precip

12.2"

Annual Snow

47.8"

Comfort Score

39/100

Below Average

Climate Comfort Score

39/100

Below Average

Avg Annual Temperature

45°F

30-year mean (NOAA NCEI)

Annual Precipitation

12.2"

Plus 47.8" of snow

Comfort score vs national 100-point ceiling (Great Sand Dunes NP & Preserve) 39.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Below Average for the Great Sand Dunes NP & Preserve area.

How Great Sand Dunes NP & Preserve compares to every U.S. city

Great Sand Dunes NP & Preserve's comfort score vs. all U.S. cities

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

39 Top 96% higher than 4% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). This entry sits in this band. 40–50: 1,302 US cities (19%). Above this entry. 50–60: 1,433 US cities (21%). Above this entry. 60–70: 1,357 US cities (20%). Above this entry. 70–80: 1,102 US cities (16%). Above this entry. 80–90: 778 US cities (11%). Above this entry. 90–100: 420 US cities (6%). Above this entry. This city 0 100 every U.S. city, bucketed by value

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 Great Sand Dunes NP & Preserve

Methodology

Zooming out from Great Sand Dunes NP & Preserve's own normal, the chart below shows how the U.S. land temperature anomaly has tracked the global mean since 1900 - the most recent decade sits warmer than the 30-year mean shown here.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • 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
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 33°F (1°C) 11°F (-11°C) 22°F (-5°C)
February 39°F (4°C) 16°F (-9°C) 28°F (-2°C)
March 49°F (9°C) 24°F (-5°C) 36°F (2°C)
April 56°F (13°C) 29°F (-2°C) 43°F (6°C)
May 66°F (19°C) 38°F (3°C) 52°F (11°C)
June 77°F (25°C) 48°F (9°C) 63°F (17°C)
July 81°F (27°C) 52°F (11°C) 66°F (19°C)
August 78°F (26°C) 50°F (10°C) 64°F (18°C)
September 72°F (22°C) 44°F (6°C) 58°F (14°C)
October 60°F (15°C) 33°F (0°C) 46°F (8°C)
November 46°F (8°C) 22°F (-6°C) 34°F (1°C)
December 34°F (1°C) 12°F (-11°C) 23°F (-5°C)

Monthly Precipitation

Average monthly rainfall and snowfall

January 0.6"

Snow: 8.1"

4.9 days with precipitation

February 0.4"

Snow: 6.2"

5.2 days with precipitation

March 0.9"

Snow: 8.5"

5.6 days with precipitation

April 1.2"

Snow: 7.9"

6.1 days with precipitation

May 1.2"

Snow: 1.7"

7.3 days with precipitation

June 0.7"

5.2 days with precipitation

July 2.1"

10.2 days with precipitation

August 1.9"

11.3 days with precipitation

September 1.3"

7.1 days with precipitation

October 0.9"

Snow: 2.8"

5.4 days with precipitation

November 0.5"

Snow: 5.6"

4.0 days with precipitation

December 0.5"

Snow: 7.0"

5.4 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

October 1

50% probability date

Last Spring Freeze

May 21

50% probability date

Growing Season

133 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

7,615

Higher = more heating needed

Cooling Degree Days

148

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What Great Sand Dunes NP & Preserve's climate means for you

Great Sand Dunes NP & Preserve runs 45°F a year - peaking in July, coldest in January.

  • Gardeners get about 133 frost-free days, with the last spring freeze near May 21 - plan the planting calendar around it, not the regional average.
  • Energy bills track 7,615 heating and 148 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: Great Sand Dunes NP & Preserve, CO

In Great Sand Dunes NP & Preserve, Colorado, the NOAA 1991–2020 climate normals put the annual average temperature at 45°F, ranging from a mean daily high of 58°F to a mean daily low of 32°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00053541, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Anyone planning to live, garden, or travel in Great Sand Dunes NP & Preserve should weigh precipitation alongside temperature: the annual average runs 12.2 inches, with 47.8 inches typically falling as snow. The frost-free season averages 133 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 21 and the first fall freeze near October 1. And on the energy front, 7,615 heating degree days and 148 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Great Sand Dunes NP & Preserve scores 39/100 (Below Average), 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 January-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 Great Sand Dunes NP & Preserve, CO?
The average annual temperature in Great Sand Dunes NP & Preserve, Colorado is 45°F. The warmest month averages 81°F (27°C) and the coldest averages 11°F (-11°C).
How much rain does Great Sand Dunes NP & Preserve get?
Great Sand Dunes NP & Preserve receives 12.2 inches of precipitation annually, including 47.8 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Great Sand Dunes NP & Preserve?
Great Sand Dunes NP & Preserve has a climate comfort score of 39/100 (Below Average), milder than 4% of U.S. cities in the PlainClimate database.
When is the growing season in Great Sand Dunes NP & Preserve?
Great Sand Dunes NP & Preserve has approximately 133 frost-free days per year, with the last spring freeze around May 21 and the first fall freeze around October 1.
How much energy does heating and cooling require in Great Sand Dunes NP & Preserve?
Great Sand Dunes NP & Preserve has 7,615 heating degree days and 148 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 Great Sand Dunes NP & Preserve climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00053541 near Great Sand Dunes NP & Preserve.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00053541. For informational purposes only.

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.