Climate Comfort Score
44/100
Moderate
NOAA 1991–2020 normals 49°F annual avg Public-domain federal data
Castle Dale, UT Climate
Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →
- 49°F
- Avg annual temp
- 44/100
- Comfort score
- 8.0"
- Annual precip
- 132d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Castle Dale
Castle Dale, Utah averages 49°F a year and scores 44/100 on the comfort index - moderate, milder than 8% of U.S. cities.
- 49°F
- yearly average temperature, NOAA normal
- 44/100
- comfort score, milder than 8% of U.S. cities
- 8.0"
- annual precipitation · 17" snow
- 132 days
- frost-free growing season
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
49°F (9°C)
Avg High
66°F
Avg Low
32°F
Annual Precip
8.0"
Annual Snow
16.6"
Comfort Score
44/100
Moderate
Avg Annual Temperature
49°F
30-year mean (NOAA NCEI)
Annual Precipitation
8.0"
Plus 16.6" of snow
Comfort score vs national 100-point ceiling (Castle Dale) 44.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Castle Dale area.
How Castle Dale compares to every U.S. city
Castle Dale'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
Warming context for Castle Dale
MethodologyThe chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Castle Dale, the NOAA 1991-2020 normal captures average conditions across that spread - notably, the most recent decade runs warmer than the 30-year mean itself.
- 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 | 40°F (5°C) | 10°F (-12°C) | 25°F (-4°C) | 0.6" | 5.5" | 30.9 | 0.0 |
| February | 47°F (8°C) | 16°F (-9°C) | 32°F (0°C) | 0.6" | 3.3" | 27.4 | 0.0 |
| March | 58°F (15°C) | 25°F (-4°C) | 42°F (5°C) | 0.6" | 1.4" | 26.9 | 0.0 |
| April | 66°F (19°C) | 31°F (-1°C) | 48°F (9°C) | 0.5" | 0.2" | 17.7 | 0.0 |
| May | 75°F (24°C) | 40°F (4°C) | 57°F (14°C) | 0.7" | 0.0" | 4.7 | 0.6 |
| June | 85°F (30°C) | 47°F (8°C) | 66°F (19°C) | 0.5" | 0.0" | 0.3 | 8.5 |
| July | 91°F (33°C) | 54°F (12°C) | 73°F (23°C) | 0.6" | 0.0" | 0.0 | 19.0 |
| August | 89°F (31°C) | 52°F (11°C) | 70°F (21°C) | 0.9" | 0.0" | 0.0 | 12.7 |
| September | 81°F (27°C) | 43°F (6°C) | 62°F (17°C) | 1.0" | 0.0" | 2.2 | 2.8 |
| October | 68°F (20°C) | 32°F (0°C) | 50°F (10°C) | 1.0" | 0.1" | 17.1 | 0.0 |
| November | 53°F (12°C) | 20°F (-7°C) | 37°F (3°C) | 0.5" | 1.2" | 28.3 | 0.0 |
| December | 41°F (5°C) | 11°F (-12°C) | 26°F (-3°C) | 0.5" | 4.9" | 30.7 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 0.6"
Snow: 5.5"
4.8 days with precipitation
February 0.6"
Snow: 3.3"
4.7 days with precipitation
March 0.6"
Snow: 1.4"
3.8 days with precipitation
April 0.5"
Snow: 0.2"
4.4 days with precipitation
May 0.7"
5.0 days with precipitation
June 0.5"
3.3 days with precipitation
July 0.6"
5.2 days with precipitation
August 0.9"
7.3 days with precipitation
September 1.0"
5.6 days with precipitation
October 1.0"
Snow: 0.1"
5.0 days with precipitation
November 0.5"
Snow: 1.2"
3.3 days with precipitation
December 0.5"
Snow: 4.9"
4.6 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
September 27
50% probability date
Last Spring Freeze
May 18
50% probability date
Growing Season
132 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,378
Higher = more heating needed
Cooling Degree Days
547
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Castle Dale's climate means for you
Castle Dale runs 49°F a year - peaking in July, coldest in January.
- Gardeners get about 132 frost-free days, with the last spring freeze near May 18 - plan the planting calendar around it, not the regional average.
- Energy bills track 6,378 heating and 547 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: Castle Dale, UT
Castle Dale, Utah runs an annual average of 49°F, ranging from a mean daily high of 66°F to a mean daily low of 32°F, per NOAA's 1991–2020 climate normals. July is typically the warmest month of the year, while January is the coldest. Drawn from station USC00421214, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.
Castle Dale averages 8.0 inches of precipitation a year, with 16.6 inches typically falling as snow, and that matters as much to daily life here as temperature does. The frost-free season averages 132 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 18 and the first fall freeze near September 27. As for energy demand, 6,378 heating degree days and 547 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Castle Dale scores 44/100 (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 Castle Dale, UT? ▼
The average annual temperature in Castle Dale, Utah is 49°F. The warmest month averages 91°F (33°C) and the coldest averages 10°F (-12°C).
How much rain does Castle Dale get? ▼
Castle Dale receives 8.0 inches of precipitation annually, including 16.6 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Castle Dale? ▼
Castle Dale has a climate comfort score of 44/100 (Moderate), milder than 8% of U.S. cities in the PlainClimate database.
When is the growing season in Castle Dale? ▼
Castle Dale has approximately 132 frost-free days per year, with the last spring freeze around May 18 and the first fall freeze around September 27.
How much energy does heating and cooling require in Castle Dale? ▼
Castle Dale has 6,378 heating degree days and 547 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 Castle Dale climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00421214 near Castle Dale.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00421214. 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.