Mtn Dell Dam, UT Climate: Temperature & Rain by Month
Explore NOAA NCEI's 1991–2020 climate normals → and a clearly labeled PlainClimate comfort calculation
30-year climate normals (1991-2020) from Mtn Dell Dam's primary NOAA station, MTN DELL DAM.
The climate verdict for Mtn Dell Dam
Mtn Dell Dam, Utah has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 50°F. Its climate comfort score of 64/100 (good) lands mid-pack nationally, exceeding 49% of station-mapped location scores.
- 50°F
- average temperature, NOAA 1991-2020 normal
- 64/100
- comfort score, above 49% of station-mapped location scores
- 25.0"
- yearly precipitation total
- 160 days
- frost-free growing season
Mtn Dell Dam: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00425892 · Mtn Dell Dam, UT 50°F mean · 25.0" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-MID · SWING-MID · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 50°F
- RANK-MID #2,882
- PHOTO-FINISH ≈ Colorado Springs
- PRCP-MID 25.0"
- SWING-MID 43°F
- COMF-MID 64/100
- LOAD-HEAT 5,904 HDD
- STN-1 USC00425892
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Colorado Springs, CO (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every UT station list.
- Hot Taunton, MA 51°F
- Mtn Dell Dam (this station) 50°F
- Near Colorado Springs, CO 50°F
- Near Confluence 1 SW…, PA 50°F
- Near Lakewood, CO 50°F
Climate Living Index · Mtn Dell Dam
Mtn Dell Dam: 45/100 · grade D
Mtn Dell Dam publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Mtn Dell Dam, not an official NOAA rating. Rankings still use Comfort Score 64/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 25.0 in · 10.0 from 35 in | 65/100 · C |
| Annual temperature balance | 50.4°F · 17.1° from 67.5°F | 42/100 · D |
| Normal heat + freeze calendar | 158 calendar days | 41/100 · D |
| Frost-free season | 160 days/year | 33/100 · F |
Mtn Dell Dam · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Mtn Dell Dam is a continental Köppen climate: Dsa
Coldest-month mean 30.1°F and warmest-month mean 72.9°F place this station in continental, dry-summer, hot summer climates (Dsa). Class Dsa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, dry-summer, hot summer.
- Köppen code
- Dsa
- Group
- Continental
- Warmest month
- 72.9°F
- Coldest month
- 30.1°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Mtn Dell Dam sits across the climate record
Three NOAA fields for Mtn Dell Dam's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 42nd percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- 34th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- 48th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Mtn Dell Dam compares across U.S. station-mapped locations
Mtn Dell Dam's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
64 49th percentile score exceeds 49% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). This entry sits in this band.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Mtn Dell Dam's measured station temperature trend
MethodologyAcross 46 complete annual observations from 1949 to 2025, MTN DELL DAM warmed at a fitted rate of 0.18°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Mtn Dell Dam primary station fitted change +0.18 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 40°F (5°C) | 20°F (-7°C) | 30°F (-1°C) | 2.5" | 29.0 | 0.0 |
| February | 44°F (7°C) | 24°F (-5°C) | 34°F (1°C) | 2.0" | 24.9 | 0.0 |
| March | 54°F (12°C) | 30°F (-1°C) | 42°F (5°C) | 2.6" | 23.8 | 0.0 |
| April | 60°F (16°C) | 36°F (2°C) | 48°F (9°C) | 3.3" | 14.3 | 0.0 |
| May | 70°F (21°C) | 43°F (6°C) | 57°F (14°C) | 3.1" | 4.1 | 0.2 |
| June | 81°F (27°C) | 49°F (10°C) | 65°F (18°C) | 1.6" | 0.4 | 3.5 |
| July | 89°F (32°C) | 57°F (14°C) | 73°F (23°C) | 0.8" | 0.0 | 15.7 |
| August | 88°F (31°C) | 56°F (13°C) | 72°F (22°C) | 0.8" | 0.0 | 9.1 |
| September | 79°F (26°C) | 48°F (9°C) | 63°F (17°C) | 1.8" | 1.0 | 0.7 |
| October | 65°F (18°C) | 38°F (3°C) | 51°F (11°C) | 2.3" | 9.6 | 0.0 |
| November | 50°F (10°C) | 30°F (-1°C) | 40°F (4°C) | 2.1" | 22.1 | 0.0 |
| December | 40°F (4°C) | 22°F (-6°C) | 31°F (-1°C) | 2.2" | 29.0 | 0.0 |
The year, day by day
Mtn Dell Dam works both ends of the calendar. Normal highs climb to 91°F by July 22 and hold at or above 90°F on 18 dates, then normal lows drop to freezing or below on 140 dates, bottoming at 20°F around January 3.
When the heat sits
Normal highs reach 90°F from July 16 through August 2, covering 18 dates. The broader mild season, normal highs of 70°F or more, runs May 15 to October 4.
This counts calendar dates whose 1991–2020 normal high reaches 90°F. It is a smaller number than the 90°F+ day counts in the monthly table above, which measure how often the threshold was actually crossed in a typical year. A date can average 88°F and still exceed 90°F in half of all years.
The freezing stretch
The normal low stays at or below 32°F into March 26, then returns to freezing around November 8, covering 140 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is December 22, when 41% of years recorded at least a hundredth of an inch. The driest is July 7 at 14%. Summed across the calendar, that is about 115 wet dates a year.
The widest day
July 6 carries the biggest normal gap between afternoon and dawn, 33°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Mtn Dell Dam.
Where Mtn Dell Dam Stands Nationally
Daily temperature swings run wider than most of the country, peaking near 33°F between the normal high and low.
Mtn Dell Dam earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall
12.3 days with precipitation
11.4 days with precipitation
11.2 days with precipitation
11.8 days with precipitation
11.0 days with precipitation
6.4 days with precipitation
4.2 days with precipitation
6.5 days with precipitation
7.5 days with precipitation
9.9 days with precipitation
9.4 days with precipitation
12.6 days with precipitation
Mtn Dell Dam spreads its precipitation across the year
Neither half of the year dominates here: June through August take 13% of the annual total and December through February 27%, with neither reaching the 35% that would mark a distinct wet season. Mtn Dell Dam has no dry season to plan around, though it does carry a 42.8°F seasonal spread.
The gap between the wettest and driest month still matters: April averages 3.3" and August 0.8". The three wettest months together take 36% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
How Mtn Dell Dam's precipitation splits across the calendar
About 114 days a year record measurable precipitation here, carrying 25.0" between them, or roughly 0.22 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Frost Dates & Growing Season
First Fall Freeze
October 14
50% probability date
Last Spring Freeze
May 7
50% probability date
Growing Season
160 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,904
Higher = more heating needed
Cooling Degree Days
617
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside UT closest to Mtn Dell Dam on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (50°F here).
- Alcalde, NM 50°F · 0.0°F off
- Beaver Falls, PA 50°F · 0.0°F off
- Brewster, KS 50°F · 0.0°F off
- Colorado Springs, CO 50°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (25.0" here), excluding temperature-peer places.
- Menno, SD 25.0" · 0.0" off
- Ada, MN 25.0" · 0.0" off
- Turkey, TX 25.0" · 0.0" off
- Dilley, TX 25.0" · 0.0" off
Data-derived climate profile
How Mtn Dell Dam's climate pattern fits together
heating led · moderate · mid swing
Mtn Dell Dam's energy balance leans toward cold weather: 5,904 annual heating degree days against 617 for cooling. Its 42.8°F seasonal range still makes the monthly rows more useful than the annual average alone.
Mtn Dell Dam's frost-free season lasts about 160 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
July and January mark the typical warm and cold ends of the calendar in Mtn Dell Dam's middle-range seasonal profile. The measured spread is 42.8°F. The annual average is 50°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Mtn Dell Dam's 25.0 inches of annual precipitation falls in PlainClimate's middle band, so “wet” or “dry” is not the leading description. Snowfall is not added to the interpretation because its annual value is missing. Temperature balance and the calendar distribution carry more information than the annual moisture label alone.
These labels group NOAA 1991-2020 normals from Mtn Dell Dam's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for Mtn Dell Dam, not an official NOAA class or a year-ahead forecast.
Questions about Mtn Dell Dam's climate
How much rain does Mtn Dell Dam get? ▼
How cold does Mtn Dell Dam get in winter? ▼
How much energy does heating and cooling require in Mtn Dell Dam? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Mtn Dell Dam's primary station: MTN DELL DAM (USC00425892). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Mtn Dell Dam; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Mtn Dell Dam comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.