Deer Creek Dam, Utah climate: Climate normals at a NOAA weather station
Deer Creek Dam's normal year runs from 13°F January nights to 86°F July afternoons, with 21.7 inches of precipitation and 74 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 7.3°C, January lows of −11°C, July highs of 30°C, 550 mm of precipitation a year.
- NOAA stationDeer Creek Dam
- Station IDUSC00422057
- Location40.40°N 111.53°W
- Elevation5,270 ft (1,606 m)
On October 23, the normal high in Deer Creek Dam is 60°F and the normal low 29°F, and the chance of measurable rain or snow is 24%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Deer Creek Dam.
- Jan 35° 13°
- Feb 39° 15°
- Mar 50° 24°
- Apr 57° 30°
- May 67° 37°
- Jun 77° 43°
- Jul 86° 49°
- Aug 84° 49°
- Sep 75° 40°
- Oct 63° 31°
- Nov 48° 23°
- Dec 36° 15°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Deer Creek Dam each month?
July is the warmest month, with normal highs of 86°F; January the coldest, with normal lows of 13°F. The most precipitation falls in January (3.08 in), the least in July (0.66 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 35°F | 13°F | 23.7°F | 3.08 | 26.2 | 10 | <1 | 30 | 9 h 40 min |
| February | 39°F | 15°F | 27.4°F | 2.29 | 12.2 | 9 | <1 | 27 | 10 h 40 min |
| March | 50°F | 24°F | 36.5°F | 1.83 | 4.0 | 8 | <1 | 28 | 11 h 50 min |
| April | 57°F | 30°F | 43.4°F | 1.60 | 1.9 | 9 | <1 | 21 | 13 h 10 min |
| May | 67°F | 37°F | 51.5°F | 2.06 | 0.0 | 10 | <1 | 8 | 14 h 20 min |
| June | 77°F | 43°F | 59.9°F | 1.06 | 0.0 | 5 | 1 | 1 | 15 h |
| July | 86°F | 49°F | 67.5°F | 0.66 | 0.0 | 5 | 8 | <1 | 14 h 50 min |
| August | 84°F | 49°F | 66.5°F | 1.08 | 0.0 | 6 | 4 | <1 | 13 h 50 min |
| September | 75°F | 40°F | 57.9°F | 1.40 | 0.0 | 6 | <1 | 4 | 12 h 30 min |
| October | 63°F | 31°F | 46.7°F | 2.03 | 0.3 | 7 | <1 | 20 | 11 h 10 min |
| November | 48°F | 23°F | 35.6°F | 1.79 | 6.5 | 8 | <1 | 27 | 10 h |
| December | 36°F | 15°F | 25.7°F | 2.79 | 22.8 | 9 | <1 | 30 | 9 h 20 min |
| Year (annual) | 60°F | 31°F | 45.2°F | 21.67 | 73.9 | 92 | 14 | 198 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 2°C | −11°C | −4.6°C | 78 mm | 67 cm |
| February | 4°C | −9°C | −2.6°C | 58 mm | 31 cm |
| March | 10°C | −5°C | 2.5°C | 46 mm | 10 cm |
| April | 14°C | −1°C | 6.3°C | 41 mm | 5 cm |
| May | 19°C | 3°C | 10.8°C | 52 mm | 0 cm |
| June | 25°C | 6°C | 15.5°C | 27 mm | 0 cm |
| July | 30°C | 10°C | 19.7°C | 17 mm | 0 cm |
| August | 29°C | 9°C | 19.2°C | 27 mm | 0 cm |
| September | 24°C | 5°C | 14.4°C | 36 mm | 0 cm |
| October | 17°C | −1°C | 8.2°C | 52 mm | 1 cm |
| November | 9°C | −5°C | 2.0°C | 45 mm | 17 cm |
| December | 2°C | −9°C | −3.5°C | 71 mm | 58 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00422057; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
Which months are mildest at Deer Creek Dam?
Normal highs sit between 65°F and 85°F in May, June, August and September. Of those, June has the fewest days with rain (5).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00422057.
When is the last frost at Deer Creek Dam?
In Deer Creek Dam, the last spring frost (32°F) comes after May 28 in half of years and after June 15 in one year in ten; the first autumn frost comes before September 23 in half of years and before September 7 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- May 281 year in 10 after June 15; 9 in 10 after May 11
- First autumn frost, half of years before
- September 231 year in 10 before September 7; 9 in 10 before October 5
NOAA puts the median frost-free season at 119 days, and the season without a hard freeze (28°F) at 147 days.
A hard freeze (28°F) comes after May 11 in half of springs and before October 4 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Deer Creek Dam in zone 6b in ZIP code 84604, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 6a: the coldest night of a typical year reaches −9°F (26 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Utah · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00422057; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get at Deer Creek Dam?
In a normal year in Deer Creek Dam, 14 days a year reach 90°F, 198 nights fall to 32°F or colder and 92 days bring measurable precipitation.
- Days at 90°F or more
- 14a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 198a normal year
- Days that stay below freezing
- 31high of 32°F or less
- Days with 0.01 inch of precipitation
- 92a normal year
- Days with 1 inch of snow or more
- 22a normal year
The highest temperature in this station's record (since 1939) is 100°F, on June 18, 1940; the lowest is −39°F, on February 7, 1989.
The wettest calendar year on that record is 1982, with 35.95 in; the snowiest season is 1951–52, with 230.6 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00422057; records: ACIS (NOAA Regional Climate Centers), station USC00422057. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Deer Creek Dam?
Over a year 80% of the sunlight that would reach the ground under clear skies gets through the clouds at Deer Creek Dam, 4.8 kWh per square metre a day. July is the sunniest month (88%) and December the cloudiest (67%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 71% | 2.3 |
| February | 72% | 3.2 |
| March | 75% | 4.5 |
| April | 74% | 5.6 |
| May | 77% | 6.6 |
| June | 86% | 7.8 |
| July | 88% | 7.5 |
| August | 86% | 6.6 |
| September | 85% | 5.4 |
| October | 80% | 3.8 |
| November | 72% | 2.5 |
| December | 67% | 1.9 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How many heating and cooling degree days does Deer Creek Dam record?
A normal year at Deer Creek Dam brings 7,400 heating degree days, 38% more than the median U.S. place (5,373), and 207 cooling degree days, 77% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 1,791 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,282 | 0 |
| February | 1,054 | 0 |
| March | 884 | 0 |
| April | 647 | 0 |
| May | 419 | 1 |
| June | 170 | 17 |
| July | 24 | 103 |
| August | 32 | 78 |
| September | 221 | 8 |
| October | 566 | 0 |
| November | 884 | 0 |
| December | 1,218 | 0 |
| Year (annual) | 7,400 | 207 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00422057. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Have recent years at Deer Creek Dam been warmer than normal?
2025 averaged 48.1°F, 2.9°F above the 1991-2020 normal of 45.2°F. 3 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 47.1°F | +1.9°F | 21.80 | 63.9 |
| 2022 | 45.0°F | −0.2°F | 17.72 | 46.1 |
| 2023 | 43.9°F | −1.3°F | 28.00 | 108.6 |
| 2024 | 47.1°F | +1.9°F | 20.95 | 51.2 |
| 2025 | 48.1°F | +2.9°F | 15.03 | 34.5 |
Over 66 complete years from 1949 to 2025, the station's annual mean temperature rose at a fitted 4.2°F per century (+0.23°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00422057; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Deer Creek Dam's climate compare?
Deer Creek Dam is warmer than 16 of the 97 places with their own NOAA record in Utah, and wetter than 84. Across the 7,247 U.S. stations with normals, its annual mean of 45.2°F is warmer than 20%.
In the Köppen classification computed from these normals, Deer Creek Dam is Dsb: continental, dry-summer, warm summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Deer Creek Dam share this climate record?
Wallsburg has no NOAA station with 1991-2020 normals of its own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Wallsburg, UT305 people · 6 mi E
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Deer Creek Dam's climate
What is the coldest month at Deer Creek Dam?
January, with a normal high of 35°F and a normal low of 13°F. The warmest is July (86°F by day, 49°F at night).
Does it snow at Deer Creek Dam?
Yes: 74 inches in a normal year, falling on 25 days with 0.1 inch or more, the most in January (26.2 inches).
What is the rainiest month at Deer Creek Dam?
January, with 3.08 in of precipitation in a normal year; the driest is July with 0.66 in.
What plant hardiness zone is Deer Creek Dam in?
The USDA's 2023 map puts Deer Creek Dam in zone 6b in ZIP code 84604, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches −9°F (26 years, 1991-2020): zone 6a.
How late can frost come at Deer Creek Dam?
In half of years the last 32°F night comes after May 28; in one year in ten it comes after June 15. Waiting until June 15 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Utah climateThe statewide normals and every place in the state
- Sundance, UT2 miles from this station, 44.7°F a year
- Heber, UT8 miles from this station, 46.6°F a year
- Timpanogos Cave, UT10 miles from this station, 49.0°F a year
- Snake Creek Powerhouse, UT10 miles from this station, 44.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made