Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Kelly Ridge experiences four distinct seasons with an average annual temperature of 53°F (11°C). Winters average 41°F in January while summers reach 69°F in July. The area gets 276 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 82.5 inches (wetter than the 38-inch national average). The area receives 82.0 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 48. The city sits at an elevation of 1,092 feet.
Temperature
41°F Jan (5°C)69°F Jul (20°C)
Annual Average
52.6°F
3% below US avg
January Average
41°F (5°C)
July Average
69°F (20°C)
Sunny Days
276 days/yr
Geography
Elevation
1,092 ft (333 m)
Area
2.0 sq mi (5.1 km²)
Population Density
1,544/sq mi
Coordinates
39.5288°N, 121.4663°W
Timezone
America/Los_Angeles
County
Butte County County
Nearest Airport
Chico Regional (CIC) 30 miles away
Precipitation & Snow
Annual Rainfall82.5"
117% above US avg
Snowfall82.0"
Wettest Month (Jan)8.54"
Driest Month (Jul)0.08"
Air Quality
AQI Median
48.0
Rating
Good
Natural Hazard Risk
Overall Risk
Relatively Moderate
Risk Score
93.9 / 100
Social Vulnerability
59.0 / 100
Community Resilience
60.4 / 100
Hazard Breakdown
Tornado
Relatively Low
Earthquake
Relatively Moderate
Wildfire
Relatively High
Flood
Relatively Moderate
Hail
Relatively Low
Strong Wind
Very Low
Heat Wave
Relatively Moderate
Winter Weather
Relatively Low
Lightning
Relatively Moderate
Drought
Very High
Cold Wave
No Rating
Landslide
Relatively Moderate
Volcano
Very Low
Avalanche
Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
4,335 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M5.7.
May 24, 2013
2 km NNE of Canyondam, California
M5.7
82 km
8 km
May 11, 2023
Lake Almanor Earthquake
M5.5
81 km
6 km
Aug 10, 2001
3 km N of Blairsden, California
M5.2
79 km
5 km
May 12, 2023
4km NW of Canyondam, CA
M5.2
81 km
6 km
Apr 26, 2008
1 km NW of Mogul, Nevada
M5.1
131 km
3 km
Nov 26, 1998
7km NW of Redding, CA
M5.1
146 km
25 km
Aug 10, 2016
20 km NNE of Upper Lake, California
M5.1
117 km
14 km
May 24, 2013
1km NNW of Canyondam, CA
M4.9
80 km
4 km
Oct 30, 1998
4 km N of Tahoe Vista, California
M4.8
125 km
1 km
Apr 26, 2008
0 km N of Mogul, Nevada
M4.8
132 km
3 km
Sep 4, 1995
13 km SW of Middletown, California
M4.8
145 km
7 km
Apr 18, 2007
15 km N of Potter Valley, California
M4.8
141 km
5 km
Jun 26, 2005
8 km NNW of Tahoe Vista, California
M4.8
121 km
-2 km
May 12, 2006
7 km W of Cobb, California
M4.7
141 km
4 km
Jan 19, 2008
31 km NW of Rancho Tehama Reserve, California
M4.7
128 km
2 km
Jan 2, 2025
4 km NW of Cobb, CA
M4.7
135 km
1 km
May 7, 2021
19km NW of Truckee, CA
M4.7
99 km
10 km
Nov 26, 1998
5km NNW of Redding, CA
M4.6
145 km
25 km
Feb 18, 2004
4 km WNW of Cobb, California
M4.6
136 km
3 km
Jan 12, 2014
8 km W of Cobb, California
M4.5
141 km
2 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
65 tornadoes (EF0+) recorded within 100 km since 1950.
Strongest on record: EF2. Total: 7 injuries.
Date
Rating
Distance
Path
Fatalities
May 25, 2011
EF2
15 km
0.2 mi
0
Feb 10, 1994
EF2
9 km
0.3 mi
0
Sep 24, 1986
EF2
67 km
2.0 mi
0
May 9, 1980
EF2
93 km
0.1 mi
0
Feb 7, 1978
EF2
92 km
1.9 mi
0
May 19, 1953
EF2
66 km
2.0 mi
0
Dec 19, 2023
EF1
44 km
0.4 mi
0
Dec 24, 2015
EF1
97 km
6.2 mi
0
Mar 26, 2014
EF1
59 km
0.6 mi
0
Mar 26, 2014
EF1
54 km
0.7 mi
0
Mar 26, 2014
EF1
55 km
1.0 mi
0
Oct 22, 2012
EF1
63 km
4.0 mi
0
Oct 22, 2012
EF1
54 km
2.0 mi
0
Oct 22, 2012
EF1
50 km
0.3 mi
0
May 25, 2011
EF1
61 km
21.7 mi
0
May 25, 2011
EF1
63 km
26.4 mi
0
Jan 8, 2005
EF1
13 km
0.1 mi
0
Apr 17, 1993
EF1
57 km
0.5 mi
0
Jan 7, 1993
EF1
25 km
0.1 mi
0
Dec 17, 1992
EF1
9 km
1.0 mi
0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Nearby Volcanoes
2 volcanoes within 200 km.
Closest: Lassen Volcanic Center (107 km).
Name
Type
Elevation
Last Eruption
Distance
Lassen Volcanic Center
Stratovolcano
3,187 m (10,456 ft)
1917
107 km
Clear Lake
Volcanic field
1,439 m (4,721 ft)
Unknown
128 km
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km.
Largest: NORTH COMPLEX (316,556 acres, 2020).
Year
Name
Acres Burned
Distance
2020
NORTH COMPLEX
316,556
36 km
2018
CAMP
153,687
26 km
1990
CAMPBELL
128,266
65 km
2012
CHIPS
79,978
67 km
2022
MOSQUITO
77,858
86 km
2007
MOONLIGHT
65,718
99 km
1999
GUN 2
61,203
78 km
2019
WALKER
58,747
98 km
2008
BTU LIGHTNING COMPLEX (LONG BRANCH-JACK)
52,091
36 km
2000
STORRIE
49,588
58 km
1994
BARKLEY
44,256
70 km
1988
49R
36,673
39 km
1999
MHRD COMPLEX (BUCKS)
34,459
42 km
2013
AMERICAN
27,938
87 km
2008
CANYON COMPLEX (SCOTCH)
26,418
32 km
2008
HUMBOLDT
23,769
27 km
1990
FINLEY
22,239
94 km
2008
CUB COMPLEX (CUB)
20,772
74 km
2008
AMERICAN RIVER COMPLEX (GOVERNMENT)
20,709
83 km
2012
SIXTEEN COMPLEX
18,191
92 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
41°F (5°C)
8.5 in
Coldest, Wettest
February
48°F (9°C)
6.6 in
March
50°F (10°C)
6.6 in
April
55°F (13°C)
3.2 in
May
63°F (17°C)
1.1 in
June
70°F (21°C)
0.5 in
July
69°F (20°C)
0.1 in
Driest
August
75°F (24°C)
0.2 in
Warmest
September
70°F (21°C)
0.8 in
October
62°F (17°C)
2.7 in
November
51°F (10°C)
6.8 in
December
45°F (7°C)
7.2 in
Kelly Ridge has a seasonal temperature swing of 34°F / from 41°F in January to 75°F in August. Total annual precipitation is 44.2 inches, with January being the wettest month (8.5") and July the driest (0.1").