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Weather & Climate in Tselakai Dezza, UT
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Tselakai Dezza experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 32°F in January while summers reach 80°F in July. The area gets 330 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 7.3 inches (drier than the 38-inch national average). The area receives 7.4 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 4,578 feet.
Temperature
32°F Jan (-0°C)
80°F Jul (27°C)
| Annual Average | 55.2°F |
| 2% above US avg | |
| January Average | 32°F (-0°C) |
| July Average | 80°F (27°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 4,578 ft (1,395 m) |
| Area | 20.0 sq mi (51.7 km²) |
| Population Density | 5/sq mi |
| Coordinates | 37.2100°N, 109.6091°W |
| Timezone | America/Denver |
| County | San Juan County County |
| Nearest Airport | Four Corners Regional (FMN) 83 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 26.8 / 100 |
| Social Vulnerability | 91.4 / 100 |
| Community Resilience | 1.1 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Very Low |
| Landslide | Relatively High |
| Volcano | Very Low |
| Avalanche | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
77 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.5.
| Mar 4, 2019 | 29 km E of La Sal, Utah | M4.5 | 134 km | 1 km |
| May 27, 2000 | 29 km WNW of Naturita, Colorado | M4.4 | 135 km | 10 km |
| Jan 24, 2013 | 22 km E of La Sal, Utah | M3.9 | 135 km | 1 km |
| Mar 1, 2016 | 34 km N of Halls Crossing, Utah | M3.8 | 110 km | 15 km |
| Jul 6, 1999 | 27 km WNW of Naturita, Colorado | M3.7 | 135 km | 2 km |
| Apr 22, 2017 | 4 km SSW of Bluff, Utah | M3.7 | 5 km | 9 km |
| Jun 3, 1999 | 28 km E of La Sal, Utah | M3.7 | 134 km | 1 km |
| Jun 6, 2008 | 10 km NE of Bluff, Utah | M3.6 | 20 km | 12 km |
| Oct 14, 1993 | 36 km SW of Spanish Valley, Utah | M3.6 | 122 km | 5 km |
| Aug 2, 1991 | 59 km WNW of Blanding, Utah | M3.4 | 80 km | 6 km |
| Jun 25, 1991 | 10 km W of Oljato-Monument Valley, Utah | M3.4 | 71 km | 0 km |
| Jul 13, 2009 | 3 km SE of Navajo Mountain, Utah | M3.3 | 105 km | 3 km |
| Dec 15, 1997 | 7 km ENE of La Sal, Utah | M3.2 | 130 km | 6 km |
| Feb 24, 1993 | 16 km SSE of Monticello, Utah | M3.1 | 64 km | -1 km |
| May 13, 1993 | 19 km SSE of Monticello, Utah | M3.1 | 63 km | -3 km |
| Mar 15, 2000 | Colorado | M3.1 | 134 km | -1 km |
| Jun 6, 2002 | 29 km E of La Sal, Utah | M3.0 | 141 km | -1 km |
| May 8, 1998 | 15 km E of La Sal, Utah | M3.0 | 133 km | 3 km |
| Jul 15, 1992 | 26 km NNW of Mexican Hat, Utah | M3.0 | 38 km | 5 km |
| Mar 31, 2009 | 32 km NE of Halls Crossing, Utah | M3.0 | 87 km | 4 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
8 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2.
| Date | Rating | Distance | Path | Fatalities |
| Apr 25, 1985 | EF2 | 92 km | 0.5 mi | 0 |
| Sep 5, 1970 | EF1 | 71 km | 1.5 mi | 0 |
| Sep 13, 2022 | EF0 | 46 km | 7.7 mi | 0 |
| Jun 6, 2015 | EF0 | 21 km | 28.7 mi | 0 |
| Sep 10, 2013 | EF0 | 95 km | 0.2 mi | 0 |
| Jul 18, 2011 | EF0 | 80 km | 0.3 mi | 0 |
| May 25, 1996 | EF0 | 78 km | 0.1 mi | 0 |
| Apr 29, 1957 | EF0 | 45 km | 2.5 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: NARRAGUINNEP (7,798 acres, 2009).
| Year | Name | Acres Burned | Distance |
| 2009 | NARRAGUINNEP | 7,798 | 99 km |
| 1986 | WESTTOE | 5,397 | 54 km |
| 1986 | HOGAN | 5,298 | 58 km |
| 2000 | PONY | 5,224 | 93 km |
| 1996 | CHAPIN 5 | 4,832 | 100 km |
| 2002 | CANYONS COMPLEX (HAMMOND) | 3,859 | 53 km |
| 2002 | CARRIZO 1 | 3,701 | 63 km |
| 1984 | FERNANDO | 3,419 | 61 km |
| 2019 | PEAVINE CANYON | 3,265 | 59 km |
| 1987 | AZTECTHREE | 2,857 | 68 km |
| 1989 | LONG MESA | 2,660 | 95 km |
| 2002 | LONG MESA | 2,599 | 99 km |
| 2009 | BRADFIELD | 2,549 | 98 km |
| 1998 | HOVENWEEP | 2,456 | 48 km |
| 2006 | CHIPPEAN RIDGE | 2,349 | 69 km |
| 2003 | WOODENSHOE | 2,342 | 61 km |
| 2002 | NIZHONI | 2,313 | 65 km |
| 2009 | COOPER SPRING | 1,523 | 70 km |
| 2019 | POISON CANYON | 1,414 | 70 km |
| 1984 | UNNAMED | 1,335 | 98 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (-0°C) | 0.8 in | |
| February | 37°F (3°C) | 0.7 in | |
| March | 45°F (7°C) | 0.8 in | |
| April | 53°F (12°C) | 0.5 in | |
| May | 62°F (17°C) | 0.5 in | |
| June | 72°F (22°C) | 0.2 in | Driest |
| July | 80°F (27°C) | 0.8 in | Warmest |
| August | 77°F (25°C) | 0.9 in | |
| September | 68°F (20°C) | 0.8 in | |
| October | 55°F (13°C) | 1.1 in | Wettest |
| November | 42°F (5°C) | 0.8 in | |
| December | 31°F (-0°C) | 0.7 in | Coldest |
Tselakai Dezza has a seasonal temperature swing of 48°F / from 31°F in December to 80°F in July. Total annual precipitation is 8.5 inches, with October being the wettest month (1.1") and June the driest (0.2").