Climate Comfort Score
47/100
Moderate
NOAA 1991–2020 normals 34°F annual avg Public-domain federal data
Lake Yellowstone, WY Climate
Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →
- 34°F
- Avg annual temp
- 47/100
- Comfort score
- 22.5"
- Annual precip
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Lake Yellowstone
Lake Yellowstone, Wyoming averages 34°F a year and scores 47/100 on the comfort index - moderate, milder than 17% of U.S. cities.
- 34°F
- annual average temperature (NOAA normal)
- 47/100
- comfort score, milder than 17% of U.S. cities
- 22.5"
- annual precipitation · 199" snow
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
34°F (1°C)
Avg High
45°F
Avg Low
22°F
Annual Precip
22.5"
Annual Snow
199.4"
Comfort Score
47/100
Moderate
Avg Annual Temperature
34°F
30-year mean (NOAA NCEI)
Annual Precipitation
22.5"
Plus 199.4" of snow
Comfort score vs national 100-point ceiling (Lake Yellowstone) 47.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Lake Yellowstone area.
How Lake Yellowstone compares to every U.S. city
Lake Yellowstone's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
47 Top 83% higher than 17% 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 Lake Yellowstone
MethodologySince 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Lake Yellowstone's current NOAA 1991-2020 normal sits within that longer spread, and the most recent decade runs 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 | 23°F (-5°C) | 3°F (-16°C) | 13°F (-10°C) | 2.0" | 35.8" | 31.0 | 0.0 |
| February | 27°F (-3°C) | 4°F (-16°C) | 15°F (-9°C) | 1.8" | 30.9" | 28.0 | 0.0 |
| March | 35°F (2°C) | 11°F (-12°C) | 23°F (-5°C) | 2.0" | 25.1" | 31.0 | 0.0 |
| April | 42°F (5°C) | 19°F (-7°C) | 30°F (-1°C) | 2.1" | 22.9" | 29.6 | 0.0 |
| May | 50°F (10°C) | 29°F (-2°C) | 40°F (4°C) | 2.4" | 6.9" | 26.0 | 0.0 |
| June | 61°F (16°C) | 36°F (2°C) | 49°F (9°C) | 2.5" | 1.0" | 11.6 | 0.0 |
| July | 71°F (22°C) | 43°F (6°C) | 57°F (14°C) | 1.3" | 0.0" | 2.5 | 0.1 |
| August | 71°F (22°C) | 42°F (5°C) | 56°F (13°C) | 1.5" | 0.0" | 3.2 | 0.0 |
| September | 61°F (16°C) | 34°F (1°C) | 48°F (9°C) | 1.6" | 1.4" | 16.2 | 0.0 |
| October | 46°F (8°C) | 25°F (-4°C) | 36°F (2°C) | 1.6" | 10.2" | 28.8 | 0.0 |
| November | 33°F (0°C) | 15°F (-10°C) | 24°F (-5°C) | 1.8" | 29.8" | 29.7 | 0.0 |
| December | 24°F (-5°C) | 7°F (-14°C) | 15°F (-9°C) | 2.0" | 35.4" | 31.0 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 2.0"
Snow: 35.8"
17.2 days with precipitation
February 1.8"
Snow: 30.9"
15.1 days with precipitation
March 2.0"
Snow: 25.1"
13.9 days with precipitation
April 2.1"
Snow: 22.9"
12.3 days with precipitation
May 2.4"
Snow: 6.9"
11.3 days with precipitation
June 2.5"
Snow: 1.0"
13.4 days with precipitation
July 1.3"
9.9 days with precipitation
August 1.5"
10.4 days with precipitation
September 1.6"
Snow: 1.4"
9.7 days with precipitation
October 1.6"
Snow: 10.2"
9.2 days with precipitation
November 1.8"
Snow: 29.8"
12.3 days with precipitation
December 2.0"
Snow: 35.4"
16.5 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
11,354
Higher = more heating needed
Cooling Degree Days
5
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Lake Yellowstone's climate means for you
Lake Yellowstone runs 34°F a year - peaking in July, coldest in January.
- Energy bills track 11,354 heating and 5 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: Lake Yellowstone, WY
In Lake Yellowstone, Wyoming, the NOAA 1991–2020 climate normals put the annual average temperature at 34°F, ranging from a mean daily high of 45°F to a mean daily low of 22°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00485345, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Lake Yellowstone averages 22.5 inches of precipitation a year, with 199.4 inches typically falling as snow, and that matters as much to daily life here as temperature does. Growing-season length varies with elevation and microclimate. As for energy demand, 11,354 heating degree days and 5 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Lake Yellowstone scores 47/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, July-driven heat peaks in summer, and January-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.
Frequently Asked Questions
What is the average temperature in Lake Yellowstone, WY? ▼
The average annual temperature in Lake Yellowstone, Wyoming is 34°F. The warmest month averages 71°F (22°C) and the coldest averages 3°F (-16°C).
How much rain does Lake Yellowstone get? ▼
Lake Yellowstone receives 22.5 inches of precipitation annually, including 199.4 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Lake Yellowstone? ▼
Lake Yellowstone has a climate comfort score of 47/100 (Moderate), milder than 17% of U.S. cities in the PlainClimate database.
When is the growing season in Lake Yellowstone? ▼
Growing season data is not available for Lake Yellowstone.
How much energy does heating and cooling require in Lake Yellowstone? ▼
Lake Yellowstone has 11,354 heating degree days and 5 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 Lake Yellowstone climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00485345 near Lake Yellowstone.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00485345. 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.