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Weather & Climate in Millerton, CA

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

Millerton enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 47°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 14.7 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 598 feet.

Temperature

47°F Jan (8°C) 80°F Jul (27°C)
Annual Average62.5°F
16% above US avg
January Average47°F (8°C)
July Average80°F (27°C)
Sunny Days330 days/yr

Geography

Elevation598 ft (182 m)
Area2.0 sq mi (5.1 km²)
Population Density372/sq mi
Coordinates36.9769°N, 119.6658°W
TimezoneAmerica/Los_Angeles
CountyFresno County County
Nearest AirportFresno Yosemite International (FAT)
14 miles away

Precipitation & Snow

Annual Rainfall 14.7"
61% below US avg
Snowfall 0.0"
Wettest Month (Jan) 3.03"
Driest Month (Jul) 0.04"

Air Quality

AQI Median48.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively High
Risk Score99.3 / 100
Social Vulnerability60.3 / 100
Community Resilience16.6 / 100

Hazard Breakdown

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

Earthquake History

6,016 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.0.

Sep 28, 2004 2004 Parkfield, California Earthquake M6.0 143 km 8 km
Oct 24, 1990 3 km NE of Mono City, California M5.8 130 km 11 km
May 15, 1999 9 km WSW of Aspen Springs, California M5.5 97 km 3 km
Sep 18, 2004 27 km NW of Benton, California M5.4 144 km 3 km
Sep 18, 2004 27 km NW of Benton, California M5.4 146 km 0 km
Oct 21, 2012 24 km NE of San Lucas, California M5.3 130 km 9 km
Apr 11, 2020 30km SE of Bodie, CA M5.2 145 km 8 km
Sep 29, 2004 8 km NW of Parkfield, California M5.0 136 km 11 km
Dec 20, 1994 3 km NW of Parkfield, California M4.9 138 km 8 km
Jul 15, 1998 8 km W of Aspen Springs, California M4.9 100 km 4 km
Apr 23, 1995 22 km NNE of Soledad, California M4.9 143 km 7 km
Jun 9, 1998 8 km WNW of Aspen Springs, California M4.9 103 km 5 km
Nov 30, 1997 2 km ESE of Mammoth Lakes, California M4.9 97 km 5 km
Sep 30, 2004 13 km NW of Parkfield, California M4.9 135 km 10 km
Nov 22, 1997 3 km ESE of Mammoth Lakes, California M4.9 98 km 5 km
Nov 14, 1993 8 km NW of Parkfield, California M4.8 136 km 11 km
Dec 31, 1997 9 km ESE of Mammoth Lakes, California M4.8 101 km 4 km
Feb 16, 2016 8 km S of Wilkerson, California M4.8 115 km 15 km
Sep 28, 2004 12 km SE of Parkfield, California M4.7 144 km 6 km
May 15, 1999 11 km WSW of Aspen Springs, California M4.7 95 km 5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

76 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 5 injuries.

Date Rating Distance Path Fatalities
Sep 5, 2020 EF2 51 km 12.0 mi 0
Apr 5, 1980 EF2 68 km 15.0 mi 0
Mar 22, 1962 EF2 23 km 0.5 mi 0
Sep 5, 2020 EF1 51 km 1.1 mi 0
Jan 17, 2019 EF1 18 km 0.3 mi 0
Dec 16, 2002 EF1 85 km 1.3 mi 0
May 20, 2002 EF1 41 km 2.7 mi 0
Feb 14, 1998 EF1 73 km 3.0 mi 0
Nov 22, 1996 EF1 76 km 0.8 mi 0
Nov 22, 1996 EF1 80 km 0.2 mi 0
Jan 14, 1995 EF1 56 km 1.0 mi 0
Feb 28, 1991 EF1 72 km 0.2 mi 0
Mar 8, 1986 EF1 48 km 4.0 mi 0
Mar 28, 1982 EF1 45 km 5.0 mi 0
Feb 19, 1980 EF1 24 km 1.7 mi 0
Mar 14, 1979 EF1 42 km 2.0 mi 0
Apr 22, 1967 EF1 97 km 1.0 mi 0
Apr 22, 1967 EF1 95 km 0.1 mi 0
Apr 21, 1967 EF1 36 km 0.1 mi 0
May 19, 1957 EF1 34 km 0.1 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

1 tsunami recorded within 500 km.

Year Location Cause Max Wave Deaths Distance
1901 MONTEREY BAY, N. CALIFORNIA Eruption + Earthquake — — 132 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

5 volcanoes within 200 km. Closest: Mammoth Mountain (92 km).

Name Type Elevation Last Eruption Distance
Mammoth Mountain Lava dome(s) 3,369 m (11,053 ft) 1260 92 km
Mono-Inyo Craters Lava dome(s) 2,796 m (9,173 ft) 1380 108 km
Mono Lake Volcanic Field Pyroclastic cone(s) 2,121 m (6,959 ft) 1790 127 km
Golden Trout Creek Volcanic field 2,886 m (9,469 ft) -5550 138 km
Ubehebe Craters Maar(s) 752 m (2,467 ft) -150 197 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: CREEK (381,441 acres, 2020).

Year Name Acres Burned Distance
2020 CREEK 381,441 55 km
2015 ROUGH 146,369 71 km
2018 FERGUSON 97,307 74 km
2021 KNP COMPLEX 89,960 89 km
2017 DETWILER 83,297 75 km
1987 LARSON 49,250 87 km
1987 HAMM 39,333 98 km
2008 TELEGRAPH 33,479 77 km
2013 ASPEN 23,564 50 km
2022 OAK 19,408 65 km
1990 A-ROCK 17,706 81 km
1996 PANOCHE II 14,760 97 km
2014 FRENCH 14,534 45 km
2018 LIONS 14,252 81 km
2017 RAILROAD 12,765 52 km
2008 TEHIPITE 12,205 76 km
1989 POWERHOUSE 11,532 23 km
1986 DEER 10,963 66 km
2005 COMB COMPLEX 10,211 91 km
2021 RIVER 10,183 42 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 47°F (8°C) 3.0 in Wettest
February 51°F (10°C) 2.8 in
March 54°F (12°C) 2.8 in
April 60°F (15°C) 1.5 in
May 68°F (20°C) 0.5 in
June 76°F (24°C) 0.2 in
July 80°F (27°C) 0.0 in Driest
August 81°F (27°C) 0.0 in Warmest
September 76°F (24°C) 0.4 in
October 66°F (19°C) 0.8 in
November 54°F (12°C) 2.1 in
December 46°F (8°C) 2.4 in Coldest

Millerton has a seasonal temperature swing of 35°F / from 46°F in December to 81°F in August. Total annual precipitation is 16.4 inches, with January being the wettest month (3.0") and July the driest (0.0").

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