Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Little River experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 46°F in January while summers reach 57°F in July / relatively mild seasonal variation. The area gets 293 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 43.2 inches. Air quality is rated Good with a median AQI of 48. The city sits at an elevation of 266 feet.
Temperature
46°F Jan (8°C)57°F Jul (14°C)
Annual Average
51.5°F
5% below US avg
January Average
46°F (8°C)
July Average
57°F (14°C)
Sunny Days
293 days/yr
Geography
Elevation
266 ft (81 m)
Area
1.7 sq mi (4.3 km²)
Population Density
84/sq mi
Coordinates
39.2703°N, 123.7817°W
Timezone
America/Los_Angeles
County
Mendocino County County
Nearest Airport
Chico Regional (CIC) 107 miles away
Precipitation & Snow
Annual Rainfall43.2"
14% above US avg
Snowfall0.0"
Wettest Month (Jan)8.43"
Driest Month (Jul)0.12"
Air Quality
AQI Median
48.0
Rating
Good
Natural Hazard Risk
Overall Risk
Relatively High
Risk Score
94.3 / 100
Social Vulnerability
76.8 / 100
Community Resilience
39.0 / 100
Hazard Breakdown
Tornado
Very Low
Earthquake
Relatively High
Wildfire
Relatively High
Flood
Relatively High
Hail
Very Low
Strong Wind
Very Low
Heat Wave
Relatively Low
Winter Weather
Very Low
Lightning
Relatively Low
Drought
Relatively High
Cold Wave
No Rating
Landslide
Relatively High
Coastal Flood
Relatively Low
Tsunami
Very Low
Volcano
Very Low
Avalanche
Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
5,751 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M7.2.
Apr 25, 1992
The 1992 Petrolia, California Earthquake
M7.2
124 km
10 km
Apr 26, 1992
32 km SW of Ferndale, California
M6.6
140 km
22 km
Apr 26, 1992
30 km WSW of Ferndale, California
M6.5
146 km
19 km
Aug 17, 1991
30 km SSW of Scotia, California
M6.0
117 km
8 km
Jan 28, 2015
40 km SW of Ferndale, California
M5.7
136 km
17 km
Jan 22, 1997
33 km SW of Scotia, California
M5.6
123 km
23 km
Jun 23, 2019
6km SSW of Petrolia, CA
M5.6
120 km
9 km
Jan 16, 1990
30 km NW of Shelter Cove, California
M5.4
117 km
4 km
Jan 1, 2023
15km SE of Rio Dell, CA
M5.4
128 km
31 km
Mar 8, 1992
27 km NW of Shelter Cove, California
M5.3
115 km
9 km
Mar 18, 2020
15km W of Petrolia, CA
M5.2
133 km
29 km
Jan 26, 1997
33 km SW of Scotia, California
M5.2
124 km
22 km
Jul 18, 2021
12km W of Petrolia, CA
M5.1
129 km
31 km
Aug 10, 2016
20 km NNE of Upper Lake, California
M5.1
85 km
14 km
Jul 19, 2006
35 km SSW of Ferndale, California
M5.0
125 km
20 km
Aug 7, 2009
43 km SW of Ferndale, California
M4.9
137 km
16 km
Jun 19, 1994
29 km SW of Ferndale, California
M4.9
134 km
19 km
Jun 5, 1992
31 km SSW of Ferndale, California
M4.9
128 km
20 km
Sep 24, 2022
37km W of Petrolia, CA
M4.8
141 km
13 km
Dec 26, 1999
34 km SW of Scotia, California
M4.8
123 km
23 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
5 tornadoes (EF0+) recorded within 100 km since 1950.
Strongest on record: EF1.
Date
Rating
Distance
Path
Fatalities
Jan 27, 2005
EF1
92 km
0.5 mi
0
Dec 5, 1998
EF1
17 km
1.7 mi
0
Feb 17, 1959
EF1
95 km
0.5 mi
0
Dec 11, 1983
EF0
50 km
2.0 mi
0
Feb 3, 1958
EF0
62 km
0.1 mi
0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Tsunami History
1 tsunami recorded within 500 km.
Highest wave on record: 1.8 m (6 ft).
Year
Location
Cause
Max Wave
Deaths
Distance
1992
CAPE MENDOCINO, N. CALIFORNIA
Earthquake
1.8 m
—
130 km
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
1 volcano within 200 km.
Closest: Clear Lake (93 km).
Name
Type
Elevation
Last Eruption
Distance
Clear Lake
Volcanic field
1,439 m (4,721 ft)
Unknown
93 km
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km.
Largest: AUGUST COMPLEX (1,068,802 acres, 2020).
Year
Name
Acres Burned
Distance
2020
AUGUST COMPLEX
1,068,802
99 km
2018
RANCH
427,048
87 km
1996
FORK
83,209
90 km
2020
WALLBRIDGE
55,194
99 km
1987
MENDENHALL
54,162
71 km
2018
RIVER
48,920
70 km
2012
NORTH PASS
43,689
94 km
2017
REDWOOD VALLEY INCIDENT
36,545
50 km
2012
MILL
29,924
100 km
2001
TROUGH
25,270
94 km
2017
POCKET
18,691
96 km
1987
FOUTS
16,892
87 km
2006
HUNTER
16,757
85 km
2014
LODGE COMPLEX
12,299
58 km
1985
UNNAMED
9,655
92 km
2008
MEU LIGHTNING COMPLEX (SUGARLOAF)
8,344
39 km
2008
MEU LIGHTNING COMPLEX (RED MOUNTAIN)
7,636
70 km
2003
SPANISH
6,384
91 km
2008
MEU LIGHTNING COMPLEX (HARDY)
5,520
49 km
1988
SADDLE
5,144
96 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
46°F (8°C)
8.4 in
Coldest, Wettest
February
48°F (9°C)
7.0 in
March
50°F (10°C)
6.6 in
April
51°F (11°C)
3.0 in
May
54°F (12°C)
1.2 in
June
57°F (14°C)
0.4 in
July
57°F (14°C)
0.1 in
Driest
August
59°F (15°C)
0.4 in
September
59°F (15°C)
0.8 in
Warmest
October
56°F (13°C)
2.9 in
November
51°F (10°C)
6.9 in
December
46°F (8°C)
7.5 in
Little River has a seasonal temperature swing of 13°F / from 46°F in January to 59°F in September. Total annual precipitation is 45.2 inches, with January being the wettest month (8.4") and July the driest (0.1").