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Weather & Climate in Ripley, CA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Ripley has a warm climate with an average annual temperature of 73°F (23°C). Winters average 55°F in January while summers reach 94°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 3.6 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 48. The city sits at an elevation of 249 feet.
Temperature
55°F Jan (13°C)
94°F Jul (34°C)
| Annual Average | 73.4°F |
| 36% above US avg | |
| January Average | 55°F (13°C) |
| July Average | 94°F (34°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 249 ft (76 m) |
| Area | 1.7 sq mi (4.4 km²) |
| Population Density | 353/sq mi |
| Coordinates | 33.5238°N, 114.6530°W |
| Timezone | America/Los_Angeles |
| County | La Paz County County |
| Nearest Airport | Yuma Mcas/Yuma International (YUM) 60 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 83.5 / 100 |
| Social Vulnerability | 94.6 / 100 |
| Community Resilience | 0.2 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Drought | Relatively Moderate |
| Cold Wave | No Rating |
| Landslide | Very Low |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
5,173 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.8.
| Dec 30, 2009 | 12km N of Delta, B.C., MX | M5.8 | 128 km | 6 km |
| Jun 15, 2010 | 8km ESE of Ocotillo, CA | M5.7 | 148 km | 9 km |
| Feb 22, 2002 | 13km WSW of Delta, B.C., MX | M5.7 | 148 km | 7 km |
| Apr 4, 2010 | 9km SW of Delta, B.C., MX | M5.4 | 147 km | 10 km |
| Aug 26, 2012 | 4km NNW of Brawley, CA | M5.4 | 100 km | 8 km |
| May 24, 2006 | 6km SSW of Delta, B.C., MX | M5.4 | 146 km | 6 km |
| Aug 26, 2012 | 5km NNW of Brawley, CA | M5.3 | 101 km | 8 km |
| Apr 4, 2010 | 15km SSW of Progreso, B.C., MX | M5.3 | 150 km | 10 km |
| Jun 5, 2021 | 11km W of Calipatria, CA | M5.3 | 101 km | 6 km |
| Feb 9, 2008 | 8km W of Delta, B.C., MX | M5.1 | 142 km | 6 km |
| Feb 11, 2008 | 7km WSW of Delta, B.C., MX | M5.1 | 145 km | 6 km |
| Sep 19, 2009 | 7km WNW of Delta, B.C., MX | M5.1 | 140 km | 10 km |
| Feb 19, 2008 | 14km NW of Delta, B.C., MX | M5.0 | 136 km | 6 km |
| Feb 12, 2008 | 13km SSE of Puebla, B.C., MX | M5.0 | 135 km | 6 km |
| Apr 5, 2010 | 20km ESE of Ocotillo, CA | M5.0 | 145 km | 1 km |
| Aug 27, 2012 | 5km NNE of Brawley, CA | M4.9 | 98 km | 4 km |
| Apr 5, 2010 | 19km ESE of Ocotillo, CA | M4.9 | 144 km | 14 km |
| Jun 1, 1999 | 5km WNW of Delta, B.C., MX | M4.9 | 139 km | 6 km |
| May 22, 2010 | 17km WNW of Progreso, B.C., MX | M4.9 | 144 km | 8 km |
| Aug 26, 2012 | 5km NW of Brawley, CA | M4.9 | 102 km | 4 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
15 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3.
| Date | Rating | Distance | Path | Fatalities |
| Aug 16, 1973 | EF3 | 11 km | 0.1 mi | 0 |
| Sep 22, 1987 | EF1 | 81 km | 0.5 mi | 0 |
| Jul 31, 1983 | EF1 | 42 km | 0.2 mi | 0 |
| Sep 18, 1972 | EF1 | 92 km | 0.1 mi | 0 |
| Sep 13, 1966 | EF1 | 92 km | 0.1 mi | 0 |
| Jul 5, 1965 | EF1 | 88 km | 2.0 mi | 0 |
| Oct 13, 2018 | EF0 | 79 km | 0.1 mi | 0 |
| Oct 13, 2018 | EF0 | 48 km | 0.0 mi | 0 |
| Apr 21, 2015 | EF0 | 76 km | 10.0 mi | 0 |
| Jan 21, 2010 | EF0 | 9 km | 14.3 mi | 0 |
| Aug 10, 2006 | EF0 | 78 km | 10.0 mi | 0 |
| Aug 30, 2000 | EF0 | 70 km | 3.0 mi | 0 |
| Sep 22, 1987 | EF0 | 79 km | 0.5 mi | 0 |
| Jun 7, 1972 | EF0 | 45 km | 0.1 mi | 0 |
| Jul 5, 1965 | EF0 | 82 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Nearby Volcanoes
1 volcano within 200 km. Closest: Salton Buttes (97 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Salton Buttes | Lava dome(s) | -40 m (-131 ft) | 210 | 97 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
17 wildfires (100+ acres) recorded within 100 km. Largest: KING VALLEY (32,964 acres, 2005).
| Year | Name | Acres Burned | Distance |
| 2005 | KING VALLEY | 32,964 | 95 km |
| 2022 | LOST LAKE | 5,455 | 57 km |
| 2006 | CIBOLA | 4,703 | 23 km |
| 2011 | THREE SLASHES | 4,581 | 28 km |
| 2005 | BOSQUE | 3,381 | 23 km |
| 1989 | LAGUNA II | 3,042 | 77 km |
| 1995 | LOST LAKE | 2,846 | 58 km |
| 1989 | FERGUSON | 2,284 | 59 km |
| 1992 | WALTERS | 2,170 | 29 km |
| 2013 | ISLAND LAKE | 2,021 | 52 km |
| 1987 | FERGUSONLK | 1,692 | 60 km |
| 1986 | COLORADO 2 | 1,403 | 54 km |
| 2021 | CLIP | 1,295 | 45 km |
| 2019 | BERMUDA | 1,175 | 77 km |
| 2003 | MITTRY | 1,066 | 77 km |
| 1990 | YOCUM | 1,006 | 79 km |
| 1987 | IMPERIAL | 1,006 | 64 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 55°F (13°C) | 0.5 in | |
| February | 59°F (15°C) | 0.5 in | |
| March | 64°F (18°C) | 0.4 in | |
| April | 70°F (21°C) | 0.1 in | |
| May | 78°F (26°C) | 0.0 in | Driest |
| June | 87°F (30°C) | 0.0 in | |
| July | 94°F (34°C) | 0.2 in | Warmest |
| August | 91°F (33°C) | 0.7 in | Wettest |
| September | 85°F (29°C) | 0.5 in | |
| October | 73°F (23°C) | 0.2 in | |
| November | 61°F (16°C) | 0.2 in | |
| December | 53°F (12°C) | 0.5 in | Coldest |
Ripley has a seasonal temperature swing of 41°F / from 53°F in December to 94°F in July. Total annual precipitation is 3.9 inches, with August being the wettest month (0.7") and May the driest (0.0").