Climate Comfort Score
44/100
Moderate
Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Boysen Dam
Boysen Dam, Wyoming averages 46°F a year and scores 44/100 on the comfort index - moderate, milder than 8% of U.S. cities.
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
46°F (8°C)
Avg High
60°F
Avg Low
33°F
Annual Precip
9.0"
Annual Snow
16.1"
Comfort Score
44/100
Moderate
Climate Comfort Score
44/100
Moderate
Avg Annual Temperature
46°F
30-year mean (NOAA NCEI)
Annual Precipitation
9.0"
Plus 16.1" of snow
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Boysen Dam area.
Boysen Dam'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
How the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Boysen Dam captures average conditions across the spread shown, the most recent decade is warmer than the 30-year mean.
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 30°F (-1°C) | 5°F (-15°C) | 18°F (-8°C) | 0.2" | 2.8" | 30.9 | 0.0 |
| February | 37°F (3°C) | 11°F (-12°C) | 24°F (-4°C) | 0.3" | 3.2" | 27.8 | 0.0 |
| March | 50°F (10°C) | 23°F (-5°C) | 37°F (3°C) | 0.6" | 3.8" | 26.7 | 0.0 |
| April | 59°F (15°C) | 33°F (0°C) | 46°F (8°C) | 1.1" | 1.3" | 13.9 | 0.0 |
| May | 69°F (20°C) | 43°F (6°C) | 56°F (13°C) | 2.1" | 0.1" | 2.5 | 0.5 |
| June | 81°F (27°C) | 52°F (11°C) | 66°F (19°C) | 1.0" | 0.0" | 0.1 | 6.3 |
| July | 91°F (33°C) | 60°F (15°C) | 75°F (24°C) | 0.8" | 0.0" | 0.0 | 20.2 |
| August | 89°F (31°C) | 57°F (14°C) | 73°F (23°C) | 0.5" | 0.0" | 0.0 | 16.9 |
| September | 77°F (25°C) | 47°F (8°C) | 62°F (17°C) | 1.0" | 0.1" | 0.5 | 2.8 |
| October | 60°F (16°C) | 35°F (1°C) | 48°F (9°C) | 0.9" | 0.8" | 11.4 | 0.0 |
| November | 44°F (7°C) | 22°F (-5°C) | 33°F (1°C) | 0.3" | 1.8" | 27.5 | 0.0 |
| December | 31°F (0°C) | 9°F (-13°C) | 20°F (-7°C) | 0.4" | 2.2" | 30.7 | 0.0 |
Average monthly rainfall and snowfall
Snow: 2.8"
2.9 days with precipitation
Snow: 3.2"
3.5 days with precipitation
Snow: 3.8"
4.1 days with precipitation
Snow: 1.3"
5.9 days with precipitation
Snow: 0.1"
8.1 days with precipitation
5.9 days with precipitation
5.0 days with precipitation
4.1 days with precipitation
Snow: 0.1"
4.8 days with precipitation
Snow: 0.8"
4.3 days with precipitation
Snow: 1.8"
3.3 days with precipitation
Snow: 2.2"
3.7 days with precipitation
First Fall Freeze
October 7
50% probability date
Last Spring Freeze
May 5
50% probability date
Growing Season
155 days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,515
Higher = more heating needed
Cooling Degree Days
769
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Boysen Dam's climate means for you
Boysen Dam runs 46°F a year - peaking in July, coldest in January.
These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.
In Boysen Dam, Wyoming, the NOAA 1991–2020 climate normals put the annual average temperature at 46°F, ranging from a mean daily high of 60°F to a mean daily low of 33°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00481000, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Boysen Dam averages 9.0 inches of precipitation a year, with 16.1 inches typically falling as snow, and that matters as much to daily life here as temperature does. The frost-free season averages 155 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 5 and the first fall freeze near October 7. As for energy demand, 7,515 heating degree days and 769 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Boysen Dam scores 44/100 (Moderate), 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 January-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.
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00481000. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
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.