Weather & Climate in Shasta, CA

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

Shasta enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 48°F in January while summers reach 83°F in July. The area gets 269 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 63.0 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 44. 73% of days have good air quality. The city sits at an elevation of 876 feet.

Temperature

48°F Jan (9°C) 83°F Jul (28°C)

Annual Average	63.5°F
	18% above US avg
January Average	48°F (9°C)
July Average	83°F (28°C)
Sunny Days	269 days/yr

Geography

Elevation	876 ft (267 m)
Area	10.9 sq mi (28.3 km²)
Population Density	122/sq mi
Coordinates	40.5920°N, 122.4779°W
Timezone	America/Los_Angeles
County	Shasta County County
Nearest Airport	Redding Regional (RDD) 11 miles away

Precipitation & Snow

Annual Rainfall 63.0"

66% above US avg

Wettest Month (Jan) 8.39"

Driest Month (Jul) 0.16"

Air Quality

AQI Median	44.0
Rating	Good
Good Days %	73.2%
Unhealthy Days	4

Natural Hazard Risk

Overall Risk	Relatively Moderate
Risk Score	93.4 / 100
Social Vulnerability	41.1 / 100
Community Resilience	47.7 / 100

Hazard Breakdown

Tornado	Very Low
Earthquake	Relatively Moderate
Wildfire	Relatively High
Flood	Relatively High
Hail	Very Low
Strong Wind	Very Low
Heat Wave	Relatively Moderate
Winter Weather	Relatively Moderate
Lightning	Relatively Moderate
Drought	Relatively Moderate
Cold Wave	Very Low
Landslide	Relatively Moderate
Volcano	Relatively Moderate
Avalanche	Very Low

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

2,118 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	128 km	8 km
Feb 13, 2012	26 km NNW of Willow Creek, California	M5.6	126 km	27 km
May 11, 2023	Lake Almanor Earthquake	M5.5	124 km	6 km
Apr 30, 2008	3 km NNW of Burnt Ranch, California	M5.4	90 km	28 km
Jan 1, 2023	15km SE of Rio Dell, CA	M5.4	128 km	31 km
May 12, 2023	4km NW of Canyondam, CA	M5.2	125 km	6 km
Nov 26, 1998	7km NW of Redding, CA	M5.1	7 km	25 km
Aug 10, 2016	20 km NNE of Upper Lake, California	M5.1	143 km	14 km
Sep 8, 2023	12 km NE of Burney, CA	M5.0	87 km	16 km
Jan 18, 1990	27 km ESE of Orick, California	M4.9	126 km	35 km
May 24, 2013	1km NNW of Canyondam, CA	M4.9	127 km	4 km
Jul 21, 2016	19km SSE of Blue Lake, CA	M4.8	120 km	26 km
Apr 18, 2007	15 km N of Potter Valley, California	M4.8	136 km	5 km
Jan 19, 2008	31 km NW of Rancho Tehama Reserve, California	M4.7	50 km	2 km
Nov 26, 1998	5km NNW of Redding, CA	M4.6	7 km	25 km
Jul 21, 1998	4 km NNW of Redding, California	M4.5	7 km	23 km
Jan 19, 2008	34 km WNW of Rancho Tehama Reserve, California	M4.5	53 km	10 km
Aug 28, 2016	8 km ESE of Mad River, California	M4.5	81 km	36 km
Sep 14, 2012	8 km WSW of Scotia, California	M4.4	145 km	27 km
Mar 9, 1992	8 km SE of Hyampom, California	M4.4	76 km	33 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: EF2. Total: 1 injury.

Date	Rating	Distance	Path	Fatalities
Sep 24, 1986	EF2	82 km	2.0 mi	0
May 9, 1980	EF2	56 km	0.1 mi	0
May 19, 1953	EF2	97 km	2.0 mi	0
Mar 5, 1978	EF1	61 km	0.1 mi	0
Mar 4, 1978	EF1	97 km	1.5 mi	0
Apr 25, 2021	EF0	91 km	2.0 mi	0
Jan 4, 2021	EF0	81 km	2.7 mi	0
Jan 4, 2021	EF0	71 km	0.8 mi	0
Mar 29, 2014	EF0	94 km	0.0 mi	0
Apr 4, 2013	EF0	53 km	0.8 mi	0
Feb 19, 2013	EF0	66 km	0.5 mi	0
Mar 8, 2010	EF0	96 km	0.3 mi	0
Mar 14, 1987	EF0	75 km	0.2 mi	0
Mar 5, 1978	EF0	71 km	0.1 mi	0
Mar 5, 1978	EF0	39 km	0.1 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Nearby Volcanoes

4 volcanoes within 200 km. Closest: Lassen Volcanic Center (83 km).

Name	Type	Elevation	Last Eruption	Distance
Lassen Volcanic Center	Stratovolcano	3,187 m (10,456 ft)	1917	83 km
Shasta	Stratovolcano	4,317 m (14,163 ft)	1250	94 km
Medicine Lake	Shield	2,412 m (7,913 ft)	1060	137 km
Clear Lake	Volcanic field	1,439 m (4,721 ft)	Unknown	182 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	86 km
2018	CARR	233,710	17 km
2021	MONUMENT	226,125	68 km
2021	HAYPRESS	204,549	73 km
2020	RED SALMON COMPLEX	147,535	98 km
1990	CAMPBELL	128,266	83 km
1999	MEGRAM- ORLEANS	125,337	94 km
2021	MCFARLAND	121,554	51 km
2006	PIGEON	100,962	73 km
2008	YOLLA BOLLY COMPLEX (IRON)	94,888	70 km
2015	RIVER COMPLEX	78,531	83 km
2018	DELTA	63,732	46 km
1992	FOUNTAIN	62,340	60 km
1999	GUN 2	61,203	73 km
2020	ZOGG	56,941	22 km
2012	BAGLEY	47,731	61 km
2018	HIRZ	46,700	47 km
1994	BARKLEY	44,256	81 km
2012	NORTH PASS	43,689	91 km
2008	SHU LIGHTNING COMPLEX (MOON)	36,514	17 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	48°F (9°C)	8.4 in	Wettest
February	49°F (10°C)	6.5 in
March	52°F (11°C)	6.6 in
April	57°F (14°C)	3.0 in
May	66°F (19°C)	1.7 in
June	74°F (23°C)	0.6 in
July	83°F (28°C)	0.2 in	Warmest, Driest
August	80°F (27°C)	0.4 in
September	74°F (24°C)	1.1 in
October	65°F (18°C)	2.4 in
November	52°F (11°C)	6.4 in
December	46°F (8°C)	6.7 in	Coldest

Shasta has a seasonal temperature swing of 37°F / from 46°F in December to 83°F in July. Total annual precipitation is 43.9 inches, with January being the wettest month (8.4") and July the driest (0.2").

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