Climate Comfort Score
29/100
Below Average
NOAA 1991–2020 normals 44°F annual avg Public-domain federal data
Diversion Dam, WY Climate
Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →
- 44°F
- Avg annual temp
- 29/100
- Comfort score
- 9.8"
- Annual precip
- 122d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Diversion Dam
Diversion Dam, Wyoming averages 44°F a year and scores 29/100 on the comfort index - below average, milder than 0% of U.S. cities.
- 44°F
- yearly average temperature, NOAA normal
- 29/100
- comfort score, milder than 0% of U.S. cities
- 9.8"
- annual precipitation · 29" snow
- 122 days
- growing season, frost-free days
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
44°F (6°C)
Avg High
58°F
Avg Low
29°F
Annual Precip
9.8"
Annual Snow
28.8"
Comfort Score
29/100
Below Average
Avg Annual Temperature
44°F
30-year mean (NOAA NCEI)
Annual Precipitation
9.8"
Plus 28.8" of snow
Comfort score vs national 100-point ceiling (Diversion Dam) 29.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Below Average for the Diversion Dam area.
How Diversion Dam compares to every U.S. city
Diversion Dam's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
29 Top 100% higher than 0% 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 Diversion Dam
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Diversion Dam 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 | 36°F (2°C) | 8°F (-13°C) | 22°F (-5°C) | 0.2" | 3.3" | 30.5 | 0.0 |
| February | 38°F (3°C) | 11°F (-12°C) | 25°F (-4°C) | 0.3" | 4.9" | 27.7 | 0.0 |
| March | 49°F (9°C) | 21°F (-6°C) | 35°F (2°C) | 0.7" | 4.9" | 28.9 | 0.0 |
| April | 56°F (13°C) | 28°F (-2°C) | 42°F (6°C) | 1.2" | 5.1" | 22.1 | 0.0 |
| May | 65°F (18°C) | 37°F (3°C) | 51°F (11°C) | 2.3" | 1.0" | 7.7 | 0.0 |
| June | 76°F (24°C) | 44°F (7°C) | 60°F (16°C) | 1.3" | 0.1" | 0.5 | 1.4 |
| July | 85°F (30°C) | 51°F (10°C) | 68°F (20°C) | 0.7" | 0.0" | 0.0 | 8.0 |
| August | 83°F (28°C) | 49°F (9°C) | 66°F (19°C) | 0.7" | 0.0" | 0.1 | 4.3 |
| September | 73°F (23°C) | 41°F (5°C) | 57°F (14°C) | 1.0" | 0.5" | 4.1 | 0.3 |
| October | 59°F (15°C) | 30°F (-1°C) | 44°F (7°C) | 0.9" | 2.2" | 19.9 | 0.0 |
| November | 45°F (7°C) | 17°F (-8°C) | 31°F (-1°C) | 0.4" | 3.8" | 28.0 | 0.0 |
| December | 34°F (1°C) | 8°F (-13°C) | 21°F (-6°C) | 0.2" | 3.0" | 30.9 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 0.2"
Snow: 3.3"
1.7 days with precipitation
February 0.3"
Snow: 4.9"
2.3 days with precipitation
March 0.7"
Snow: 4.9"
3.4 days with precipitation
April 1.2"
Snow: 5.1"
5.8 days with precipitation
May 2.3"
Snow: 1.0"
7.6 days with precipitation
June 1.3"
Snow: 0.1"
5.7 days with precipitation
July 0.7"
4.3 days with precipitation
August 0.7"
4.6 days with precipitation
September 1.0"
Snow: 0.5"
4.5 days with precipitation
October 0.9"
Snow: 2.2"
3.5 days with precipitation
November 0.4"
Snow: 3.8"
2.3 days with precipitation
December 0.2"
Snow: 3.0"
1.8 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
September 20
50% probability date
Last Spring Freeze
May 21
50% probability date
Growing Season
122 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
8,058
Higher = more heating needed
Cooling Degree Days
238
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
What Diversion Dam's climate means for you
Diversion Dam runs 44°F a year - peaking in July, coldest in December.
- Gardeners get about 122 frost-free days, with the last spring freeze near May 21 - plan the planting calendar around it, not the regional average.
- Energy bills track 8,058 heating and 238 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: Diversion Dam, WY
An annual average temperature of 44°F, ranging from a mean daily high of 58°F to a mean daily low of 29°F is what the NOAA 1991–2020 climate normals report for Diversion Dam, Wyoming. July is typically the warmest month of the year, while December is the coldest. That baseline comes from station USC00482595 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.
Diversion Dam averages 9.8 inches of precipitation a year, with 28.8 inches typically falling as snow, and that matters as much to daily life here as temperature does. The frost-free season averages 122 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 September 20. As for energy demand, 8,058 heating degree days and 238 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Diversion Dam scores 29/100 (Below Average), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. For planning purposes, look to the monthly tables above: shoulder seasons bring the mildest highs and lows, summer brings July-driven heat, and deep winter brings December-driven cold. Treat every figure here as a thirty-year average rather than a forecast - individual years routinely run warmer, cooler, wetter, or drier than the normal.
Frequently Asked Questions
What is the average temperature in Diversion Dam, WY? ▼
The average annual temperature in Diversion Dam, Wyoming is 44°F. The warmest month averages 85°F (30°C) and the coldest averages 8°F (-13°C).
How much rain does Diversion Dam get? ▼
Diversion Dam receives 9.8 inches of precipitation annually, including 28.8 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Diversion Dam? ▼
Diversion Dam has a climate comfort score of 29/100 (Below Average), milder than 0% of U.S. cities in the PlainClimate database.
When is the growing season in Diversion Dam? ▼
Diversion Dam has approximately 122 frost-free days per year, with the last spring freeze around May 21 and the first fall freeze around September 20.
How much energy does heating and cooling require in Diversion Dam? ▼
Diversion Dam has 8,058 heating degree days and 238 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 Diversion Dam climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00482595 near Diversion Dam.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00482595. 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.