Frost dates in Utah
Across 169 NOAA stations in Utah, the average last spring frost ranges from March 9 at Hite Rs to June 21 at Brian Head.
| Alpine | May 3 | October 12 | 159 |
| Alta | June 11 | September 18 | 98 |
| Altamont | May 31 | September 23 | 112 |
| Alton | June 1 | September 30 | 120 |
| Angle | June 17 | September 12 | 85 |
| Arches Np Hqs | April 2 | October 30 | 207 |
| Bear Lake Sp | May 15 | October 4 | 140 |
| Beaver Canyon Pwr House | June 1 | September 28 | 120 |
| Big Water | April 8 | November 1 | 204 |
| Black Rock | May 23 | September 27 | 124 |
| Blanding | April 28 | October 21 | 174 |
| Blowhard Mtn Radar | June 7 | September 29 | 110 |
| Bluff | April 24 | October 13 | 172 |
| Boulder | May 4 | October 14 | 160 |
| Bountiful Bench | April 25 | October 24 | 181 |
| Bountiful-Val Verda | April 24 | October 19 | 178 |
| Brian Head | June 21 | September 12 | 82 |
| Brigham City 28 Wnw | May 12 | October 5 | 144 |
| Brigham City Waste Plt | May 5 | October 5 | 150 |
| Bryce Canyon Np Hqrs | May 23 | September 27 | 125 |
| Bullfrog Basin | March 25 | November 10 | 227 |
| Callao | May 14 | September 28 | 135 |
| Canyonlands-The Neck | April 25 | October 23 | 180 |
| Canyonlands-The Needles | April 30 | October 11 | 164 |
| Capitol Reef Np | April 18 | October 28 | 192 |
| Castle Dale | May 18 | September 27 | 128 |
| Castle Valley | April 17 | October 23 | 185 |
| Castle Valley 1Se | April 19 | October 21 | 184 |
| Cedar Breaks Nm | June 11 | October 3 | 113 |
| Cedar City | May 4 | October 13 | 159 |
| Cedar City 5E | May 23 | October 4 | 130 |
| Cedar City Muni Airport | May 21 | September 29 | 130 |
| Cedar Pt | May 16 | October 11 | 145 |
| Circleville | May 23 | September 27 | 125 |
| City Creek Wtp | May 13 | October 7 | 146 |
| Coalville | June 7 | September 12 | 95 |
| Cottonwood Weir | April 29 | October 22 | 174 |
| Cutler Dam | May 3 | October 12 | 160 |
| Deer Creek Dam | May 28 | September 23 | 119 |
| Delta | May 16 | September 29 | 137 |
| Deseret | May 14 | September 30 | 137 |
| Dewey | April 27 | October 9 | 165 |
| Dinosaur Nm-Quarry Area | May 1 | October 6 | 156 |
| Draper-Point Of Mtn | April 18 | October 22 | 185 |
| Duchesne | May 6 | October 5 | 150 |
| Dugway | May 11 | October 2 | 143 |
| Echo Dam | May 30 | September 18 | 112 |
| Eden-Liberty | May 25 | September 26 | 123 |
| Enterprise | May 21 | October 2 | 132 |
| Enterprise Beryl Jct | May 31 | September 20 | 110 |
| Ephraim | May 28 | September 20 | 113 |
| Escalante | May 8 | October 10 | 155 |
| Eskdale | May 12 | October 1 | 140 |
| Fairfield | June 2 | September 16 | 103 |
| Farmington 3 Nw | April 19 | October 19 | 181 |
| Ferron | May 6 | October 10 | 156 |
| Fillmore | May 4 | October 14 | 160 |
| Fish Springs Nwr | April 26 | October 14 | 169 |
| Flaming Gorge | May 26 | September 23 | 120 |
| Fremont Indian Sp | June 4 | September 21 | 106 |
| Ft Duchesne | May 19 | October 2 | 135 |
| Garfield | April 3 | November 4 | 213 |
| Goblin Valley Sp | April 26 | October 18 | 173 |
| Granite Peak Dugway Pg | April 18 | October 16 | 179 |
| Grantsville 2W | May 2 | October 14 | 164 |
| Grouse Creek | June 4 | September 17 | 104 |
| Hanksville | May 5 | October 3 | 149 |
| Hans Flat Rs | May 1 | October 16 | 163 |
| Hatch | June 19 | September 13 | 83 |
| Heber | June 4 | September 20 | 106 |
| Hite Rs | March 9 | November 20 | 253 |
| Hovenweep Nm | May 2 | October 10 | 159 |
| Huntsville Monastery | June 4 | September 16 | 102 |
| Ibapah | June 14 | September 8 | 86 |
| Jarvie Rch | May 19 | September 28 | 132 |
| Jensen | May 20 | September 25 | 126 |
| Johnson Pass | May 15 | October 5 | 142 |
| Kamas | June 5 | September 17 | 100 |
| Kanab | April 29 | October 22 | 175 |
| Kanosh | April 30 | October 19 | 172 |
| Kodachrome Basin Park | May 31 | September 28 | 116 |
| Koosharem | June 6 | September 21 | 104 |
| La Sal 1Sw | May 17 | October 6 | 141 |
| La Verkin | April 1 | November 5 | 217 |
| Laketown | May 28 | September 24 | 119 |
| Levan | May 10 | October 7 | 148 |
| Little Sahara Rec Area | May 15 | October 1 | 137 |
| Loa | May 31 | September 21 | 112 |
| Logan 5 Sw Exp Farm | May 12 | September 28 | 138 |
| Logan Cache Airport | May 8 | October 2 | 144 |
| Logan Radio Kvnu | May 8 | October 2 | 145 |
| Logan Utah St Univ | April 30 | October 16 | 166 |
| Lytle Rch | March 18 | November 9 | 234 |
| Maeser 9Nw | May 15 | October 5 | 143 |
| Manila | May 22 | September 29 | 128 |
| Manti | May 11 | October 6 | 146 |
| Manti Radio Kmti | May 31 | September 21 | 114 |
| Marysvale | May 24 | September 25 | 123 |
| Mexican Hat | April 11 | October 30 | 201 |
| Milford | May 10 | October 2 | 144 |
| Milford Muni Airport | May 13 | October 4 | 143 |
| Moab | April 11 | October 23 | 192 |
| Moab Canyonland Airport | April 22 | October 20 | 179 |
| Modena | May 20 | October 3 | 136 |
| Monticello #2 | May 17 | October 7 | 141 |
| Monticello 2E | May 19 | October 2 | 133 |
| Moon Lake | June 11 | September 18 | 97 |
| Morgan | May 25 | September 24 | 119 |
| Moroni | May 26 | September 25 | 119 |
| Mtn Dell Dam | May 7 | October 14 | 158 |
| Myton | May 7 | October 5 | 149 |
| Natural Bridges Nm | May 5 | October 13 | 157 |
| Neola | May 19 | September 29 | 130 |
| Nephi | May 6 | October 10 | 156 |
| New Harmony | May 9 | October 11 | 155 |
| Oak City | May 2 | October 13 | 162 |
| Ogden Hinkley Airport | April 22 | October 22 | 180 |
| Ogden Ne Bench | April 19 | October 22 | 186 |
| Ogden Pioneer Ph | April 21 | October 23 | 184 |
| Ogden Sugar Factory | April 22 | October 18 | 177 |
| Orderville | May 15 | October 8 | 144 |
| Orem Trtmt Plt | April 19 | October 19 | 182 |
| Ouray 4Ne | May 2 | October 3 | 152 |
| Panguitch | June 12 | September 12 | 90 |
| Paria Rs | April 19 | October 23 | 186 |
| Park City | May 29 | September 25 | 117 |
| Partoun | May 13 | September 29 | 137 |
| Pineview Dam | May 22 | September 26 | 125 |
| Pleasant Grove | April 17 | October 25 | 188 |
| Price Carbon Co Airport | May 3 | October 12 | 160 |
| Provo Byu | April 18 | October 21 | 185 |
| Randolph | June 14 | September 1 | 76 |
| Richfield Radio Ksvc | May 21 | September 24 | 125 |
| Richmond | May 11 | October 5 | 143 |
| Roosevelt Radio | May 23 | September 22 | 121 |
| Rosette | May 21 | October 2 | 132 |
| Salina 24 E | May 29 | September 26 | 118 |
| Salt Lake City E Bench | April 25 | October 18 | 175 |
| Salt Lake City Intl Airport | April 8 | October 31 | 204 |
| Salt Lake Triad Ctr | March 31 | November 8 | 224 |
| Santaquin Chlorinator | May 4 | October 11 | 157 |
| Scipio | May 22 | September 25 | 122 |
| Scofield Dam | June 15 | September 12 | 87 |
| Scofield-Skyline Mine | June 13 | September 17 | 94 |
| Snake Creek Powerhouse | May 31 | September 11 | 101 |
| Spanish Fk Pwr House | April 25 | October 18 | 174 |
| St George | March 14 | November 10 | 239 |
| Sundance | May 17 | October 5 | 138 |
| Sunnyside City | April 26 | October 25 | 181 |
| Sunnyside City Ctr | May 5 | October 15 | 159 |
| Thiokol Propulsion F S | May 17 | September 24 | 128 |
| Timpanogos Cave | May 2 | October 16 | 161 |
| Tooele | May 2 | October 16 | 165 |
| Torrey 7 E | April 22 | October 23 | 183 |
| Tremonton | April 24 | October 17 | 175 |
| Trenton | May 17 | September 18 | 121 |
| Utah Lake Lehi | April 30 | October 9 | 159 |
| Utah Test Range | May 15 | October 2 | 139 |
| Valley Of The Gods | March 29 | November 6 | 223 |
| Vernal | May 7 | October 6 | 150 |
| Vernal Municipal Airport | May 6 | October 7 | 153 |
| Vernon | June 1 | September 20 | 110 |
| Veyo Powerhouse | April 9 | November 5 | 207 |
| Wah Wah Rch | May 19 | September 29 | 131 |
| Wanship Dam | June 11 | September 12 | 92 |
| Weber Basin Pump Plt 3 | April 29 | October 20 | 172 |
| Wellington 3 E | May 27 | September 26 | 122 |
| Wendover Ap Awos | April 18 | October 23 | 188 |
| Zion Np | April 13 | November 2 | 202 |
Sources
- U.S. Annual/Seasonal Climate Normals, 1991 to 2020 (freeze probability dates by station), NOAA National Centers for Environmental Information, checked 1 November 2026
- Annual/Seasonal Normals 1991 to 2020 documentation, NOAA National Centers for Environmental Information, checked 1 November 2026
- 2024 Gazetteer Files, ZIP Code Tabulation Areas, US Census Bureau, checked 1 November 2026