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Weather & Climate in North Tustin, CA

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

North Tustin enjoys a temperate climate with an average annual temperature of 66°F (19°C). Winters average 59°F in January while summers reach 74°F in July / relatively mild seasonal variation. 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 12.5 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 243 feet.

Temperature

59°F Jan (15°C) 74°F Jul (23°C)
Annual Average66.1°F
22% above US avg
January Average59°F (15°C)
July Average74°F (23°C)
Sunny Days330 days/yr

Geography

Elevation243 ft (74 m)
Area6.7 sq mi (17.3 km²)
Population Density3,957/sq mi
Coordinates33.7635°N, 117.7947°W
TimezoneAmerica/Los_Angeles
CountyOrange County County
Nearest AirportJohn Wayne/Orange County (SNA)
7 miles away

Precipitation & Snow

Annual Rainfall 12.5"
67% below US avg
Snowfall 0.0"
Wettest Month (Feb) 3.15"
Driest Month (Jul) 0.04"

Air Quality

AQI Median48.0
RatingGood

Natural Hazard Risk

Overall RiskVery High
Risk Score99.8 / 100
Social Vulnerability24.9 / 100
Community Resilience16.3 / 100

Hazard Breakdown

Tornado Relatively Moderate
Hurricane No Rating
Earthquake Very High
Wildfire Relatively High
Flood Very High
Hail Relatively Moderate
Strong Wind Relatively Moderate
Heat Wave Relatively High
Winter Weather Very Low
Lightning Relatively Moderate
Drought Relatively Low
Cold Wave No Rating
Landslide Relatively High
Coastal Flood Relatively High
Tsunami Relatively Low
Avalanche Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

10,474 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.3.

Jun 28, 1992 The 1992 Landers, California Earthquake M7.3 134 km 0 km
Jan 17, 1994 Northridge, California, earthquake M6.7 85 km 18 km
Jun 28, 1992 The 1992 Big Bear, California Earthquake M6.3 102 km 4 km
Apr 23, 1992 The 1992 Joshua Tree, California Earthquake M6.1 138 km 12 km
Jan 17, 1994 1km ENE of Granada Hills, California M5.9 86 km 5 km
Jun 28, 1991 The 1991 Sierra Madre, California Earthquake M5.8 59 km 8 km
Jun 28, 1992 3km NE of Yucca Valley, California M5.8 134 km -1 km
Jun 28, 1992 2km SSW of Joshua Tree, California M5.7 141 km 6 km
Jun 29, 1992 3km ESE of Yucca Valley, California M5.7 134 km 10 km
Oct 16, 1999 7km ENE of Running Springs, CA M5.6 87 km 6 km
Jan 17, 1994 7km NNE of Simi Valley, California M5.6 104 km 9 km
Jun 28, 1992 11km SSE of Big Bear Lake, California M5.5 98 km 10 km
Feb 28, 1990 The 1990 Upland, California Earthquake M5.5 43 km 3 km
Jun 28, 1992 0km E of Yucca Valley, CA M5.5 132 km 8 km
Jul 7, 2010 20km NNW of Borrego Springs, CA M5.4 128 km 12 km
Jun 28, 1992 26km NNW of Yucca Valley, CA M5.4 135 km 4 km
Jul 1, 1992 24km N of Yucca Valley, California M5.3 138 km 5 km
Nov 27, 1992 10km NNW of Big Bear City, California M5.3 104 km 0 km
Sep 15, 1992 9km SE of Yucca Valley, California M5.3 137 km 7 km
Jun 28, 1992 1km N of Big Bear Lake, California M5.3 98 km 7 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

119 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 58 injuries.

Date Rating Distance Path Fatalities
May 22, 2008 EF2 52 km 2.8 mi 0
Mar 1, 1983 EF2 58 km 3.5 mi 0
Nov 9, 1982 EF2 38 km 10.0 mi 0
Nov 9, 1982 EF2 76 km 1.0 mi 0
Nov 7, 1966 EF2 17 km 0.2 mi 0
Nov 7, 1966 EF2 50 km 10.3 mi 0
Nov 7, 1966 EF2 49 km 0.1 mi 0
Mar 22, 2023 EF1 40 km 0.5 mi 0
Jan 19, 2010 EF1 31 km 4.6 mi 0
Feb 19, 2005 EF1 66 km 2.8 mi 0
Jan 29, 1998 EF1 92 km 0.5 mi 0
Jan 9, 1998 EF1 35 km 1.5 mi 0
Dec 21, 1997 EF1 22 km 1.0 mi 0
Nov 11, 1997 EF1 10 km 0.2 mi 0
Dec 22, 1996 EF1 95 km 0.1 mi 0
Jan 14, 1993 EF1 19 km 1.0 mi 0
Dec 7, 1992 EF1 19 km 0.1 mi 0
Dec 7, 1992 EF1 14 km 0.1 mi 0
Mar 20, 1992 EF1 52 km 0.2 mi 0
Mar 27, 1991 EF1 90 km 0.2 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

4 tsunamis recorded within 500 km. Highest wave on record: 3.1 m (10 ft).

Year Location Cause Max Wave Deaths Distance
1930 S. CALIFORNIA Eruption + Earthquake 3.1 m 1 84 km
1862 S. CALIFORNIA Eruption + Earthquake 1.2 m — 131 km
1994 WEST COAST, USA Earthquake 0.1 m 57 85 km
1855 S. CALIFORNIA Eruption + Earthquake — — 47 km
Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: STATION (165,368 acres, 2009).

Year Name Acres Burned Distance
2009 STATION 165,368 70 km
2020 BOBCAT 115,728 64 km
2003 OLD 90,180 72 km
1999 WILLOW 63,525 91 km
2003 GRAND PRIX 50,799 56 km
2007 POOMACHA 47,496 96 km
2016 SAND 41,561 87 km
2006 ESPERANZA 40,566 85 km
2002 WILLIAMS 37,505 48 km
2016 BLUE CUT 36,856 68 km
2008 YELLOW 33,232 52 km
2020 APPLE 32,374 91 km
2008 FREEWAY COMPLEX 29,350 18 km
2022 FAIRVIEW 28,680 86 km
2007 SANTIAGO 27,605 13 km
1998 EDNA 27,561 75 km
2020 INDIA 24,193 53 km
2005 TOPANGA 24,133 97 km
1993 CALIFORNIA 23,899 72 km
2018 HOLY 22,845 31 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 59°F (15°C) 3.1 in
February 56°F (13°C) 3.2 in Wettest
March 57°F (14°C) 2.9 in
April 60°F (16°C) 0.9 in
May 63°F (17°C) 0.2 in
June 68°F (20°C) 0.1 in
July 74°F (23°C) 0.0 in Warmest, Driest
August 74°F (23°C) 0.1 in
September 72°F (22°C) 0.4 in
October 67°F (19°C) 0.4 in
November 60°F (16°C) 1.5 in
December 55°F (13°C) 2.1 in Coldest

North Tustin has a seasonal temperature swing of 18°F / from 55°F in December to 74°F in July. Total annual precipitation is 14.9 inches, with February being the wettest month (3.2") and July the driest (0.0").

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