Climate Comfort Score
39/100
Below Average
NOAA 1991–2020 normals 51°F annual avg Public-domain federal data
Black Rock, UT Climate
Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →
- 51°F
- Avg annual temp
- 39/100
- Comfort score
- 8.8"
- Annual precip
- 127d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Black Rock
Black Rock, Utah averages 51°F a year and scores 39/100 on the comfort index - below average, milder than 4% of U.S. cities.
- 51°F
- annual average temperature (NOAA normal)
- 39/100
- comfort score, milder than 4% of U.S. cities
- 8.8"
- annual precipitation · 24" snow
- 127 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
51°F (11°C)
Avg High
68°F
Avg Low
34°F
Annual Precip
8.8"
Annual Snow
23.7"
Comfort Score
39/100
Below Average
Avg Annual Temperature
51°F
30-year mean (NOAA NCEI)
Annual Precipitation
8.8"
Plus 23.7" of snow
Comfort score vs national 100-point ceiling (Black Rock) 39.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Below Average for the Black Rock area.
How Black Rock compares to every U.S. city
Black Rock's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
39 Top 96% higher than 4% 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 Black Rock
MethodologySince 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Black Rock'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 | 42°F (6°C) | 16°F (-9°C) | 29°F (-1°C) | 0.6" | 5.5" | 29.2 | 0.0 |
| February | 49°F (10°C) | 21°F (-6°C) | 35°F (2°C) | 0.7" | 4.7" | 25.1 | 0.0 |
| March | 61°F (16°C) | 27°F (-3°C) | 44°F (6°C) | 0.8" | 3.0" | 24.6 | 0.0 |
| April | 68°F (20°C) | 32°F (0°C) | 50°F (10°C) | 0.9" | 1.7" | 17.0 | 0.1 |
| May | 77°F (25°C) | 39°F (4°C) | 58°F (14°C) | 0.9" | 0.1" | 5.3 | 1.9 |
| June | 88°F (31°C) | 47°F (8°C) | 67°F (20°C) | 0.5" | 0.0" | 0.5 | 13.4 |
| July | 95°F (35°C) | 56°F (13°C) | 75°F (24°C) | 0.6" | 0.0" | 0.0 | 25.6 |
| August | 92°F (33°C) | 54°F (12°C) | 73°F (23°C) | 0.7" | 0.0" | 0.1 | 20.8 |
| September | 83°F (28°C) | 44°F (7°C) | 63°F (17°C) | 0.7" | 0.0" | 2.6 | 4.8 |
| October | 69°F (21°C) | 32°F (0°C) | 51°F (10°C) | 1.0" | 0.1" | 17.4 | 0.0 |
| November | 54°F (12°C) | 23°F (-5°C) | 39°F (4°C) | 0.6" | 2.4" | 25.7 | 0.0 |
| December | 42°F (6°C) | 16°F (-9°C) | 29°F (-2°C) | 0.7" | 6.2" | 29.2 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 0.6"
Snow: 5.5"
4.3 days with precipitation
February 0.7"
Snow: 4.7"
5.0 days with precipitation
March 0.8"
Snow: 3.0"
4.8 days with precipitation
April 0.9"
Snow: 1.7"
5.9 days with precipitation
May 0.9"
Snow: 0.1"
5.3 days with precipitation
June 0.5"
3.0 days with precipitation
July 0.6"
4.1 days with precipitation
August 0.7"
4.7 days with precipitation
September 0.7"
3.8 days with precipitation
October 1.0"
Snow: 0.1"
4.4 days with precipitation
November 0.6"
Snow: 2.4"
3.5 days with precipitation
December 0.7"
Snow: 6.2"
4.5 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
September 27
50% probability date
Last Spring Freeze
May 23
50% probability date
Growing Season
127 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,846
Higher = more heating needed
Cooling Degree Days
760
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
What Black Rock's climate means for you
Black Rock runs 51°F a year - peaking in July, coldest in December.
- Gardeners get about 127 frost-free days, with the last spring freeze near May 23 - plan the planting calendar around it, not the regional average.
- Energy bills track 5,846 heating and 760 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: Black Rock, UT
In Black Rock, Utah, the NOAA 1991–2020 climate normals put the annual average temperature at 51°F, ranging from a mean daily high of 68°F to a mean daily low of 34°F. July is typically the warmest month of the year, while December is the coldest. As thirty-year averages computed from station USC00420730, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Beyond temperature, Black Rock averages 8.8 inches of precipitation annually, with 23.7 inches typically falling as snow - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 127 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 23 and the first fall freeze near September 27. Turning to energy use, 5,846 heating degree days and 760 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Black Rock scores 39/100 (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 Black Rock, UT? ▼
The average annual temperature in Black Rock, Utah is 51°F. The warmest month averages 95°F (35°C) and the coldest averages 16°F (-9°C).
How much rain does Black Rock get? ▼
Black Rock receives 8.8 inches of precipitation annually, including 23.7 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Black Rock? ▼
Black Rock has a climate comfort score of 39/100 (Below Average), milder than 4% of U.S. cities in the PlainClimate database.
When is the growing season in Black Rock? ▼
Black Rock has approximately 127 frost-free days per year, with the last spring freeze around May 23 and the first fall freeze around September 27.
How much energy does heating and cooling require in Black Rock? ▼
Black Rock has 5,846 heating degree days and 760 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 Black Rock climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00420730 near Black Rock.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00420730. 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.