Blowhard Mountain Radar, Utah climate: Climate normals at a NOAA weather station
Blowhard Mountain Radar's normal year runs from 15°F December nights to 68°F July afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 3.2°C, December lows of −10°C, July highs of 20°C.
- NOAA stationBlowhard Mountain Radar
- Station IDUSC00420757
- Location37.59°N 112.86°W
- Elevation10,694 ft (3,260 m)
On October 23, the normal high in Blowhard Mountain Radar is 46°F and the normal low 29°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Blowhard Mountain Radar.
- Jan 31° 14°
- Feb 31° 17°
- Mar 35° 20°
- Apr 38° 23°
- May 47° 33°
- Jun 60° 42°
- Jul 68° 51°
- Aug 66° 48°
- Sep 58° 42°
- Oct 48° 32°
- Nov 38° 21°
- Dec 30° 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 Blowhard Mountain Radar each month?
July is the warmest month, with normal highs of 68°F; December the coldest, with normal lows of 15°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 31°F | 14°F | 22.7°F | – | <1 | 31 | 9 h 50 min |
| February | 31°F | 17°F | 24.2°F | – | <1 | 28 | 10 h 50 min |
| March | 35°F | 20°F | 27.5°F | – | <1 | 29 | 11 h 50 min |
| April | 38°F | 23°F | 30.4°F | – | <1 | 24 | 13 h 10 min |
| May | 47°F | 33°F | 39.7°F | – | <1 | 15 | 14 h 10 min |
| June | 60°F | 42°F | 50.9°F | – | <1 | 4 | 14 h 40 min |
| July | 68°F | 51°F | 59.2°F | – | <1 | <1 | 14 h 30 min |
| August | 66°F | 48°F | 56.9°F | – | <1 | <1 | 13 h 40 min |
| September | 58°F | 42°F | 49.9°F | – | <1 | 3 | 12 h 30 min |
| October | 48°F | 32°F | 39.6°F | – | <1 | 15 | 11 h 20 min |
| November | 38°F | 21°F | 29.7°F | – | <1 | 26 | 10 h 10 min |
| December | 30°F | 15°F | 22.3°F | – | <1 | 31 | 9 h 40 min |
| Year (annual) | 46°F | 30°F | 37.7°F | – | <1 | 205 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | 0°C | −10°C | −5.2°C |
| February | 0°C | −8°C | −4.3°C |
| March | 1°C | −6°C | −2.5°C |
| April | 3°C | −5°C | −0.9°C |
| May | 8°C | 0°C | 4.3°C |
| June | 16°C | 5°C | 10.5°C |
| July | 20°C | 10°C | 15.1°C |
| August | 19°C | 9°C | 13.8°C |
| September | 14°C | 6°C | 9.9°C |
| October | 9°C | 0°C | 4.2°C |
| November | 3°C | −6°C | −1.3°C |
| December | −1°C | −10°C | −5.4°C |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Cedar City (5 mi E) (8 miles away), gets 55 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00420757; 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 Blowhard Mountain Radar?
Normal highs sit between 65°F and 85°F in July and August.
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 USC00420757.
When is the last frost at Blowhard Mountain Radar?
In Blowhard Mountain Radar, the last spring frost (32°F) comes after June 7 in half of years and after June 22 in one year in ten; the first autumn frost comes before September 29 in half of years and before September 14 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
- June 71 year in 10 after June 22; 9 in 10 after May 25
- First autumn frost, half of years before
- September 291 year in 10 before September 14; 9 in 10 before October 12
NOAA puts the median frost-free season at 110 days, and the season without a hard freeze (28°F) at 129 days.
A hard freeze (28°F) comes after May 30 in half of springs and before October 6 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Blowhard Mountain Radar in zone 6a in ZIP code 84719, the nearest ZIP area.
Frost dates for every NOAA station in Utah · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00420757; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. 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 Blowhard Mountain Radar?
In a normal year in Blowhard Mountain Radar, a 90°F day is rare and 205 nights fall to 32°F or colder.
- Days at 90°F or more
- fewer than 1a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 205a normal year
- Days that stay below freezing
- 90high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00420757.
How sunny is it at Blowhard Mountain Radar?
Over a year 84% of the sunlight that would reach the ground under clear skies gets through the clouds at Blowhard Mountain Radar, 5.3 kWh per square metre a day. June is the sunniest month (91%) and December the cloudiest (77%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 80% | 2.9 |
| February | 78% | 3.7 |
| March | 81% | 5.1 |
| April | 83% | 6.5 |
| May | 85% | 7.4 |
| June | 91% | 8.3 |
| July | 82% | 7.1 |
| August | 84% | 6.5 |
| September | 87% | 5.8 |
| October | 86% | 4.4 |
| November | 83% | 3.2 |
| December | 77% | 2.5 |
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 Blowhard Mountain Radar record?
A normal year at Blowhard Mountain Radar brings 9,936 heating degree days, 85% more than the median U.S. place (5,373), and 19 cooling degree days, 98% fewer than the median (908). Ten months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 715 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,311 | 0 |
| February | 1,141 | 0 |
| March | 1,164 | 0 |
| April | 1,038 | 0 |
| May | 786 | 0 |
| June | 423 | 1 |
| July | 195 | 15 |
| August | 253 | 4 |
| September | 453 | 0 |
| October | 786 | 0 |
| November | 1,061 | 0 |
| December | 1,325 | 0 |
| Year (annual) | 9,936 | 19 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00420757. 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.
How does Blowhard Mountain Radar's climate compare?
Blowhard Mountain Radar is warmer than 1 of the 97 places with their own NOAA record in Utah. Across the 7,247 U.S. stations with normals, its annual mean of 37.7°F is warmer than 3%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Questions about Blowhard Mountain Radar's climate
What is the coldest month at Blowhard Mountain Radar?
December, with a normal high of 30°F and a normal low of 15°F. The warmest is July (68°F by day, 51°F at night).
Does it snow at Blowhard Mountain Radar?
Yes. NOAA publishes no 1991-2020 snowfall normal for the station; the nearest record that keeps one, Cedar City (5 mi E) (8 miles away), records 55 inches of snow in a normal year.
What plant hardiness zone is Blowhard Mountain Radar in?
The USDA's 2023 map puts Blowhard Mountain Radar in zone 6a in ZIP code 84719, the nearest ZIP area.
How late can frost come at Blowhard Mountain Radar?
In half of years the last 32°F night comes after June 7; in one year in ten it comes after June 22. Waiting until June 22 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Utah climateThe statewide normals and every place in the state
- Cedar Breaks National Monument, UT2 miles from this station, 41.1°F a year
- Brian Head, UT7 miles from this station, 36.5°F a year
- Cedar City, UT15 miles from this station, 50.3°F a year
- Alton, UT24 miles from this station, 47.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made