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Weather & Climate in Bridgeport, CA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Bridgeport has a cool climate with an average annual temperature of 44°F (7°C). Winters average 27°F in January while summers reach 64°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 10.2 inches (drier than the 38-inch national average). The area receives 31.9 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 48. The city sits at an elevation of 6,648 feet.
Temperature
27°F Jan (-3°C)
64°F Jul (18°C)
| Annual Average | 44.4°F |
| 18% below US avg | |
| January Average | 27°F (-3°C) |
| July Average | 64°F (18°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 6,648 ft (2,026 m) |
| Area | 21.8 sq mi (56.3 km²) |
| Population Density | 17/sq mi |
| Coordinates | 38.2552°N, 119.2104°W |
| Timezone | America/Los_Angeles |
| County | Alpine County County |
| Nearest Airport | Reno/Tahoe International (RNO) 91 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 10.6 / 100 |
| Social Vulnerability | 44.1 / 100 |
| Community Resilience | 53.9 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Moderate |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Drought | No Rating |
| Cold Wave | No Rating |
| Landslide | Relatively Low |
| Volcano | Very Low |
| Avalanche | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
7,339 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.5.
| May 15, 2020 | Monte Cristo Range, NV Earthquake | M6.5 | 119 km | 3 km |
| Sep 12, 1994 | 4 km S of Carter Springs, Nevada | M6.1 | 74 km | 14 km |
| Jul 8, 2021 | Antelope Valley, CA | M6.0 | 38 km | 7 km |
| Oct 24, 1990 | 3 km NE of Mono City, California | M5.8 | 23 km | 11 km |
| May 15, 1999 | 9 km WSW of Aspen Springs, California | M5.5 | 88 km | 3 km |
| Sep 18, 2004 | 27 km NW of Benton, California | M5.4 | 54 km | 3 km |
| Nov 2, 1997 | 16 km NNW of Dyer, Nevada | M5.4 | 106 km | 5 km |
| Sep 18, 2004 | 27 km NW of Benton, California | M5.4 | 55 km | 0 km |
| Apr 11, 2020 | 30km SE of Bodie, CA | M5.2 | 47 km | 8 km |
| May 15, 2020 | 31 km SE of Mina, Nevada | M5.1 | 117 km | 7 km |
| Sep 12, 1994 | 8 km ESE of Mesa Vista, California | M5.1 | 72 km | -1 km |
| May 22, 2020 | 32 km ESE of Mina, Nevada | M5.1 | 124 km | 7 km |
| Feb 13, 2013 | 39 km N of Dyer, Nevada | M5.1 | 104 km | 8 km |
| Jul 8, 2021 | 32km SE of Markleeville, CA | M5.0 | 38 km | 7 km |
| Jun 30, 2020 | 29 km SSE of Mina, Nevada | M5.0 | 110 km | 8 km |
| May 20, 2020 | 38 km ESE of Mina, Nevada | M5.0 | 128 km | 12 km |
| Jun 9, 1998 | 8 km WNW of Aspen Springs, California | M4.9 | 83 km | 5 km |
| Jul 15, 1998 | 8 km W of Aspen Springs, California | M4.9 | 85 km | 4 km |
| May 15, 2020 | 28 km SSE of Mina, Nevada | M4.9 | 110 km | 4 km |
| Jun 19, 2020 | 34 km SE of Mina, Nevada | M4.9 | 121 km | 7 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
4 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF1. Total: 1 injury.
| Date | Rating | Distance | Path | Fatalities |
| Jun 5, 2015 | EF1 | 61 km | 1.5 mi | 0 |
| May 26, 1964 | EF1 | 83 km | 2.0 mi | 0 |
| Jun 7, 1989 | EF0 | 81 km | 1.0 mi | 0 |
| Oct 15, 1972 | EF0 | 74 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Mono Lake Volcanic Field (33 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Mono Lake Volcanic Field | Pyroclastic cone(s) | 2,121 m (6,959 ft) | 1790 | 33 km |
| Mono-Inyo Craters | Lava dome(s) | 2,796 m (9,173 ft) | 1380 | 53 km |
| Mammoth Mountain | Lava dome(s) | 3,369 m (11,053 ft) | 1260 | 71 km |
| Soda Lakes | Maar(s) | 1,251 m (4,104 ft) | Unknown | 145 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: RIM (257,084 acres, 2013).
| Year | Name | Acres Burned | Distance |
| 2013 | RIM | 257,084 | 76 km |
| 2018 | FERGUSON | 97,307 | 87 km |
| 2021 | TAMARACK | 70,171 | 67 km |
| 1996 | ACKERSON COMPLEX (ACKERSON) | 58,161 | 65 km |
| 1987 | PAPER | 49,296 | 89 km |
| 1987 | LARSON | 49,250 | 86 km |
| 1987 | HAMM | 39,333 | 90 km |
| 2018 | DONNELL | 36,151 | 55 km |
| 2020 | SLINK | 26,437 | 43 km |
| 2013 | BISON | 23,611 | 79 km |
| 2002 | CANNON | 23,605 | 32 km |
| 2022 | OAK | 19,408 | 98 km |
| 2020 | NUMBERS | 18,998 | 75 km |
| 2015 | WASHINGTON | 18,485 | 61 km |
| 1990 | A-ROCK | 17,706 | 80 km |
| 1996 | ROGGE | 17,559 | 88 km |
| 2004 | POWER | 17,266 | 97 km |
| 1984 | INDIAN | 16,990 | 75 km |
| 2001 | DARBY | 14,734 | 96 km |
| 2020 | MOUNTAIN VIEW | 14,416 | 38 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 27°F (-3°C) | 2.1 in | Coldest, Wettest |
| February | 29°F (-2°C) | 1.8 in | |
| March | 34°F (1°C) | 1.3 in | |
| April | 40°F (4°C) | 0.6 in | |
| May | 47°F (8°C) | 0.7 in | |
| June | 55°F (13°C) | 0.7 in | |
| July | 64°F (18°C) | 0.5 in | Warmest, Driest |
| August | 62°F (16°C) | 0.6 in | |
| September | 55°F (13°C) | 0.7 in | |
| October | 45°F (7°C) | 0.6 in | |
| November | 36°F (2°C) | 1.5 in | |
| December | 28°F (-3°C) | 1.7 in |
Bridgeport has a seasonal temperature swing of 38°F / from 27°F in January to 64°F in July. Total annual precipitation is 12.7 inches, with January being the wettest month (2.1") and July the driest (0.5").