Climate Comfort Score
44/100
Moderate
NOAA 1991–2020 normals 47°F annual avg 2 stations
Cheyenne, WY Climate
Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score
- 47°F
- Avg annual temp
- 44/100
- Comfort score
- 15.4"
- Annual precip
- 142d
- Growing season
30-year climate normals from 2 weather stations (1991-2020).
The climate verdict for Cheyenne
Cheyenne, Wyoming averages 47°F a year and scores 44/100 on the comfort index - moderate, milder than 8% of U.S. cities.
- 47°F
- annual average temperature (NOAA normal)
- 44/100
- comfort score, milder than 8% of U.S. cities
- 15.4"
- annual precipitation · 63" snow
- 142 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
47°F (8°C)
Avg High
59°F
Avg Low
35°F
Annual Precip
15.4"
Annual Snow
62.9"
Comfort Score
44/100
Moderate
Avg Annual Temperature
47°F
30-year mean (NOAA NCEI)
Annual Precipitation
15.4"
Plus 62.9" of snow
Comfort score vs national 100-point ceiling (Cheyenne) 44.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Cheyenne area.
How Cheyenne compares to every U.S. city
Cheyenne's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
44 Top 92% higher than 8% 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 Cheyenne
MethodologyThe chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Cheyenne, 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 | 40°F (4°C) | 18°F (-8°C) | 29°F (-2°C) | 0.3" | 6.3" | 28.9 | 0.0 |
| February | 41°F (5°C) | 18°F (-8°C) | 30°F (-1°C) | 0.5" | 9.0" | 26.0 | 0.0 |
| March | 49°F (10°C) | 25°F (-4°C) | 37°F (3°C) | 1.0" | 9.7" | 25.3 | 0.0 |
| April | 55°F (13°C) | 31°F (-1°C) | 43°F (6°C) | 1.8" | 11.3" | 18.0 | 0.0 |
| May | 64°F (18°C) | 40°F (5°C) | 52°F (11°C) | 2.4" | 3.4" | 5.0 | 0.1 |
| June | 77°F (25°C) | 49°F (10°C) | 63°F (17°C) | 2.2" | 0.0" | 0.1 | 2.1 |
| July | 84°F (29°C) | 56°F (13°C) | 70°F (21°C) | 2.1" | 0.0" | 0.0 | 7.8 |
| August | 82°F (28°C) | 54°F (12°C) | 68°F (20°C) | 1.5" | 0.0" | 0.0 | 4.3 |
| September | 73°F (23°C) | 46°F (8°C) | 60°F (15°C) | 1.5" | 1.0" | 1.2 | 0.6 |
| October | 59°F (15°C) | 34°F (1°C) | 47°F (8°C) | 1.0" | 5.9" | 12.8 | 0.0 |
| November | 48°F (9°C) | 25°F (-4°C) | 36°F (2°C) | 0.6" | 7.5" | 24.2 | 0.0 |
| December | 39°F (4°C) | 18°F (-8°C) | 29°F (-2°C) | 0.5" | 8.8" | 28.9 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 0.3"
Snow: 6.3"
5.1 days with precipitation
February 0.5"
Snow: 9.0"
6.9 days with precipitation
March 1.0"
Snow: 9.7"
7.9 days with precipitation
April 1.8"
Snow: 11.3"
10.6 days with precipitation
May 2.4"
Snow: 3.4"
12.9 days with precipitation
June 2.2"
10.7 days with precipitation
July 2.1"
10.5 days with precipitation
August 1.5"
10.3 days with precipitation
September 1.5"
Snow: 1.0"
7.3 days with precipitation
October 1.0"
Snow: 5.9"
7.1 days with precipitation
November 0.6"
Snow: 7.5"
6.2 days with precipitation
December 0.5"
Snow: 8.8"
6.0 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 1
50% probability date
Last Spring Freeze
May 12
50% probability date
Growing Season
142 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,959
Higher = more heating needed
Cooling Degree Days
399
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 | 52% | 13.7 | 61% | 19% |
| February | 50% | 13.6 | 60% | 21% |
| March | 50% | 13.4 | 52% | 24% |
| April | 52% | 12.5 | 46% | 27% |
| May | 54% | 11.0 | 50% | 21% |
| June | 45% | 10.1 | 65% | 8% |
| July | 50% | 9.4 | 61% | 11% |
| August | 46% | 9.7 | 65% | 10% |
| September | 48% | 10.7 | 67% | 15% |
| October | 50% | 12.4 | 64% | 20% |
| November | 49% | 13.7 | 68% | 17% |
| December | 51% | 13.8 | 66% | 17% |
What Cheyenne's climate means for you
Cheyenne runs 47°F a year - peaking in July, coldest in December.
- Gardeners get about 142 frost-free days, with the last spring freeze near May 12 - plan the planting calendar around it, not the regional average.
- Energy bills track 6,959 heating and 399 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: Cheyenne, WY
The NOAA 1991–2020 climate normals describe Cheyenne, Wyoming as a location with an annual average temperature of 47°F, ranging from a mean daily high of 59°F to a mean daily low of 35°F. July is typically the warmest month of the year, while December is the coldest. These thirty-year averages, computed from 2 weather stations, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.
Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Cheyenne receives roughly 15.4 inches of precipitation each year, with 62.9 inches typically falling as snow. The frost-free season averages 142 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 12 and the first fall freeze near October 1. For energy use, 6,959 heating degree days and 399 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Cheyenne scores 44/100 (Moderate), 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 December-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 Cheyenne, WY? ▼
The average annual temperature in Cheyenne, Wyoming is 47°F. The warmest month averages 84°F (29°C) and the coldest averages 18°F (-8°C).
How much rain does Cheyenne get? ▼
Cheyenne receives 15.4 inches of precipitation annually, including 62.9 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Cheyenne? ▼
Cheyenne has a climate comfort score of 44/100 (Moderate), milder than 8% of U.S. cities in the PlainClimate database.
When is the growing season in Cheyenne? ▼
Cheyenne has approximately 142 frost-free days per year, with the last spring freeze around May 12 and the first fall freeze around October 1.
How much energy does heating and cooling require in Cheyenne? ▼
Cheyenne has 6,959 heating degree days and 399 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 Cheyenne climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from 2 weather stations near Cheyenne.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00024018. 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.