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Weather & Climate in Big Water, UT
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Big Water enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 34°F in January while summers reach 82°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 7.7 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 4,139 feet.
Temperature
34°F Jan (1°C)
82°F Jul (28°C)
| Annual Average | 57.6°F |
| 7% above US avg | |
| January Average | 34°F (1°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 4,139 ft (1,262 m) |
| Area | 6.0 sq mi (15.5 km²) |
| Population Density | 87/sq mi |
| Coordinates | 37.0729°N, 111.6608°W |
| Timezone | America/Denver |
| County | Kane County County |
| Nearest Airport | Cedar City Regional (CDC) 90 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 39.7 / 100 |
| Social Vulnerability | 25.9 / 100 |
| Community Resilience | 44.1 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Relatively Moderate |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
354 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Apr 20, 1991 | 19 km SE of Minersville, Utah | M4.6 | 149 km | 10 km |
| Jan 3, 2011 | 10 km NW of Circleville, Utah | M4.6 | 144 km | 11 km |
| Jul 29, 2024 | 24 km S of Brian Head, Utah | M4.5 | 114 km | 20 km |
| Apr 12, 2012 | 16 km NNE of Bryce Canyon City, Utah | M4.2 | 92 km | 15 km |
| Jan 4, 2010 | 8 km S of Cedar City, Utah | M4.1 | 137 km | 9 km |
| Oct 22, 1999 | 20 km SE of Minersville, Utah | M4.1 | 148 km | 6 km |
| Jul 4, 2015 | Utah | M4.1 | 112 km | 3 km |
| Sep 6, 1994 | 12 km SSW of Circleville, Utah | M4.0 | 124 km | 6 km |
| Jan 26, 1991 | 22 km SE of Escalante, Utah | M4.0 | 67 km | 22 km |
| Jul 5, 1992 | Arizona | M4.0 | 131 km | 5 km |
| Jan 30, 1998 | 19 km NNW of Panguitch, Utah | M4.0 | 126 km | 7 km |
| Jun 18, 1998 | 18 km NNW of Panguitch, Utah | M3.9 | 126 km | 6 km |
| Apr 14, 2010 | 30 km ENE of Boulder Town, Utah | M3.9 | 116 km | 13 km |
| Dec 21, 1991 | 16 km ENE of Alton, Utah | M3.9 | 77 km | 6 km |
| May 6, 1990 | 10 km SSE of Beaver, Utah | M3.8 | 149 km | 9 km |
| Mar 1, 2016 | 34 km N of Halls Crossing, Utah | M3.8 | 119 km | 15 km |
| Jul 5, 1992 | 179km ENE of Mesquite, Nevada | M3.7 | 78 km | 5 km |
| Apr 17, 1995 | 8 km W of Tusayan, Arizona | M3.7 | 133 km | 5 km |
| Mar 14, 1992 | 12 km WSW of Grand Canyon Village, Arizona | M3.7 | 132 km | 5 km |
| Mar 14, 1992 | 20 km WSW of Grand Canyon Village, Arizona | M3.7 | 138 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
2 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF0.
| Date | Rating | Distance | Path | Fatalities |
| Oct 18, 2005 | EF0 | 88 km | 1.0 mi | 0 |
| May 14, 1998 | EF0 | 47 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Markagunt Plateau (106 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Markagunt Plateau | Volcanic field | 2,840 m (9,318 ft) | 1050 | 106 km |
| Uinkaret Field | Volcanic field | 1,555 m (5,102 ft) | 1100 | 152 km |
| San Francisco Volcanic Field | Pyroclastic cone | 3,850 m (12,631 ft) | 1075 | 192 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: MANGUM (71,634 acres, 2020).
| Year | Name | Acres Burned | Distance |
| 2020 | MANGUM | 71,634 | 60 km |
| 2006 | WARM | 58,255 | 68 km |
| 1996 | BRIDGER KNOLL | 35,478 | 90 km |
| 1996 | JUMP | 19,411 | 90 km |
| 2019 | CASTLE | 19,271 | 82 km |
| 2003 | POPLAR | 16,914 | 98 km |
| 2016 | FULLER | 15,275 | 91 km |
| 2000 | OUTLET | 14,336 | 92 km |
| 2020 | PINE HOLLOW | 11,552 | 37 km |
| 2017 | ROOST FAWN SPRING TIPOVER E FY18 RX | 8,351 | 93 km |
| 2012 | SHINGLE | 8,122 | 92 km |
| 1989 | UINTA FLAT | 7,709 | 97 km |
| 2023 | THREE LAKES | 6,941 | 68 km |
| 2007 | SLIDE | 5,902 | 87 km |
| 2006 | NAVAJO MOUNTAIN 1 | 5,257 | 71 km |
| 2017 | ROOST FY18 SLOPES RX | 5,214 | 95 km |
| 2007 | UNCLE JIM RX | 4,619 | 98 km |
| 2018 | CAT | 4,578 | 87 km |
| 2009 | BRIDGE | 4,493 | 76 km |
| 2022 | LEFT FORK | 4,324 | 78 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 34°F (1°C) | 0.6 in | Coldest |
| February | 41°F (5°C) | 0.6 in | |
| March | 48°F (9°C) | 0.7 in | |
| April | 56°F (13°C) | 0.4 in | |
| May | 66°F (19°C) | 0.4 in | |
| June | 77°F (25°C) | 0.2 in | Driest |
| July | 82°F (28°C) | 0.8 in | Warmest |
| August | 80°F (27°C) | 1.1 in | Wettest |
| September | 71°F (22°C) | 0.8 in | |
| October | 58°F (15°C) | 0.8 in | |
| November | 45°F (7°C) | 0.6 in | |
| December | 36°F (2°C) | 0.4 in |
Big Water has a seasonal temperature swing of 48°F / from 34°F in January to 82°F in July. Total annual precipitation is 7.4 inches, with August being the wettest month (1.1") and June the driest (0.2").