Climate Comfort Score
47/100
Moderate
NOAA 1991–2020 normals 38°F annual avg Public-domain federal data
Shirley Basin, WY Climate
Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →
- 38°F
- Avg annual temp
- 47/100
- Comfort score
- 11.1"
- Annual precip
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Shirley Basin
Shirley Basin, Wyoming averages 38°F a year and scores 47/100 on the comfort index - moderate, milder than 17% of U.S. cities.
- 38°F
- average temperature, NOAA 1991-2020 normal
- 47/100
- comfort score, milder than 17% of U.S. cities
- 11.1"
- annual precipitation
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
38°F (3°C)
Avg High
53°F
Avg Low
23°F
Annual Precip
11.1"
Comfort Score
47/100
Moderate
Avg Annual Temperature
38°F
30-year mean (NOAA NCEI)
Annual Precipitation
11.1"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Shirley Basin) 47.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Shirley Basin area.
How Shirley Basin compares to every U.S. city
Shirley Basin'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 Shirley Basin
MethodologyShirley Basin'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 | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 28°F (-2°C) | 1°F (-17°C) | 15°F (-10°C) | 0.5" | 31.0 | 0.0 |
| February | 31°F (-1°C) | 4°F (-15°C) | 18°F (-8°C) | 0.6" | 27.9 | 0.0 |
| March | 41°F (5°C) | 15°F (-10°C) | 28°F (-2°C) | 0.8" | 30.7 | 0.0 |
| April | 50°F (10°C) | 24°F (-5°C) | 37°F (3°C) | 1.3" | 28.6 | 0.0 |
| May | 60°F (16°C) | 32°F (0°C) | 46°F (8°C) | 1.8" | 19.3 | 0.0 |
| June | 73°F (23°C) | 39°F (4°C) | 56°F (13°C) | 1.4" | 6.5 | 0.0 |
| July | 81°F (27°C) | 46°F (8°C) | 64°F (18°C) | 1.3" | 1.0 | 0.7 |
| August | 80°F (26°C) | 43°F (6°C) | 61°F (16°C) | 0.8" | 2.3 | 0.1 |
| September | 69°F (21°C) | 34°F (1°C) | 51°F (11°C) | 0.9" | 16.0 | 0.0 |
| October | 54°F (12°C) | 23°F (-5°C) | 39°F (4°C) | 0.8" | 28.0 | 0.0 |
| November | 40°F (4°C) | 14°F (-10°C) | 27°F (-3°C) | 0.4" | 29.6 | 0.0 |
| December | 29°F (-2°C) | 3°F (-16°C) | 16°F (-9°C) | 0.4" | 31.0 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 0.5"
7.2 days with precipitation
February 0.6"
8.5 days with precipitation
March 0.8"
7.8 days with precipitation
April 1.3"
10.9 days with precipitation
May 1.8"
10.6 days with precipitation
June 1.4"
8.3 days with precipitation
July 1.3"
7.7 days with precipitation
August 0.8"
6.8 days with precipitation
September 0.9"
6.2 days with precipitation
October 0.8"
6.8 days with precipitation
November 0.4"
5.4 days with precipitation
December 0.4"
7.1 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
9,876
Higher = more heating needed
Cooling Degree Days
62
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Shirley Basin's climate means for you
Shirley Basin runs 38°F a year - peaking in July, coldest in January.
- Energy bills track 9,876 heating and 62 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: Shirley Basin, WY
In Shirley Basin, Wyoming, the NOAA 1991–2020 climate normals put the annual average temperature at 38°F, ranging from a mean daily high of 53°F to a mean daily low of 23°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00488192, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Shirley Basin sees about 11.1 inches of precipitation a year, predominantly as rainfall. Growing-season length varies with elevation and microclimate. On the energy side, 9,876 heating degree days and 62 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Shirley Basin 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 Shirley Basin, WY? ▼
The average annual temperature in Shirley Basin, Wyoming is 38°F. The warmest month averages 81°F (27°C) and the coldest averages 1°F (-17°C).
How much rain does Shirley Basin get? ▼
Shirley Basin receives 11.1 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Shirley Basin? ▼
Shirley Basin 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 Shirley Basin? ▼
Growing season data is not available for Shirley Basin.
How much energy does heating and cooling require in Shirley Basin? ▼
Shirley Basin has 9,876 heating degree days and 62 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 Shirley Basin climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00488192 near Shirley Basin.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00488192. 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.