Weather & Climate in Shasta Lake, CA

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

Shasta Lake 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 48. The city sits at an elevation of 794 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	794 ft (242 m)
Area	10.9 sq mi (28.3 km²)
Population Density	948/sq mi
Coordinates	40.6766°N, 122.3809°W
Timezone	America/Los_Angeles
County	Shasta County County
Nearest Airport	Redding Regional (RDD) 13 miles away

Precipitation & Snow

Annual Rainfall 63.0"

66% above US avg

Wettest Month (Jan) 9.96"

Driest Month (Jul) 0.24"

Air Quality

AQI Median	48.0
Rating	Good

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

1,769 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	124 km	8 km
Feb 13, 2012	26 km NNW of Willow Creek, California	M5.6	129 km	27 km
May 11, 2023	Lake Almanor Earthquake	M5.5	120 km	6 km
Apr 30, 2008	3 km NNW of Burnt Ranch, California	M5.4	96 km	28 km
Jan 1, 2023	15km SE of Rio Dell, CA	M5.4	138 km	31 km
May 12, 2023	4km NW of Canyondam, CA	M5.2	121 km	6 km
Nov 26, 1998	7km NW of Redding, CA	M5.1	6 km	25 km
Sep 8, 2023	12 km NE of Burney, CA	M5.0	76 km	16 km
Jan 18, 1990	27 km ESE of Orick, California	M4.9	129 km	35 km
May 24, 2013	1km NNW of Canyondam, CA	M4.9	123 km	4 km
Jul 21, 2016	19km SSE of Blue Lake, CA	M4.8	128 km	26 km
Apr 18, 2007	15 km N of Potter Valley, California	M4.8	148 km	5 km
Jan 19, 2008	31 km NW of Rancho Tehama Reserve, California	M4.7	62 km	2 km
Nov 26, 1998	5km NNW of Redding, CA	M4.6	7 km	25 km
Jan 19, 2008	34 km WNW of Rancho Tehama Reserve, California	M4.5	65 km	10 km
Jul 21, 1998	4 km NNW of Redding, California	M4.5	6 km	23 km
Aug 28, 2016	8 km ESE of Mad River, California	M4.5	91 km	36 km
May 10, 2005	10 km NW of Burney, California	M4.4	60 km	17 km
Mar 9, 1992	8 km SE of Hyampom, California	M4.4	85 km	33 km
Apr 5, 2024	6 km NW of Belden, CA	M4.4	116 km	8 km

Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

12 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 1 injury.

Date	Rating	Distance	Path	Fatalities
Sep 24, 1986	EF2	88 km	2.0 mi	0
May 9, 1980	EF2	62 km	0.1 mi	0
Mar 5, 1978	EF1	70 km	0.1 mi	0
Apr 25, 2021	EF0	97 km	2.0 mi	0
Jan 4, 2021	EF0	86 km	2.7 mi	0
Jan 4, 2021	EF0	80 km	0.8 mi	0
Mar 29, 2014	EF0	99 km	0.0 mi	0
Apr 4, 2013	EF0	60 km	0.8 mi	0
Feb 19, 2013	EF0	72 km	0.5 mi	0
Mar 14, 1987	EF0	84 km	0.2 mi	0
Mar 5, 1978	EF0	77 km	0.1 mi	0
Mar 5, 1978	EF0	43 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 (77 km).

Name	Type	Elevation	Last Eruption	Distance
Lassen Volcanic Center	Stratovolcano	3,187 m (10,456 ft)	1917	77 km
Shasta	Stratovolcano	4,317 m (14,163 ft)	1250	83 km
Medicine Lake	Shield	2,412 m (7,913 ft)	1060	125 km
Clear Lake	Volcanic field	1,439 m (4,721 ft)	Unknown	193 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	CARR	233,710	18 km
2021	MONUMENT	226,125	74 km
2021	HAYPRESS	204,549	71 km
2020	RED SALMON COMPLEX	147,535	99 km
1990	CAMPBELL	128,266	85 km
1999	MEGRAM- ORLEANS	125,337	97 km
2021	MCFARLAND	121,554	64 km
2006	PIGEON	100,962	76 km
2008	YOLLA BOLLY COMPLEX (IRON)	94,888	82 km
2015	RIVER COMPLEX	78,531	87 km
2018	DELTA	63,732	37 km
1992	FOUNTAIN	62,340	48 km
1999	GUN 2	61,203	74 km
2020	ZOGG	56,941	35 km
2012	BAGLEY	47,731	48 km
2018	HIRZ	46,700	35 km
1994	BARKLEY	44,256	81 km
2014	BALD	39,770	92 km
2008	SHU LIGHTNING COMPLEX (MOON)	36,514	28 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	48°F (9°C)	10.0 in	Wettest
February	46°F (8°C)	7.8 in
March	49°F (9°C)	8.0 in
April	54°F (12°C)	3.9 in
May	62°F (17°C)	1.9 in
June	70°F (21°C)	0.8 in
July	83°F (28°C)	0.2 in	Warmest, Driest
August	77°F (25°C)	0.5 in
September	71°F (22°C)	1.3 in
October	62°F (17°C)	3.0 in
November	50°F (10°C)	8.2 in
December	44°F (7°C)	8.6 in	Coldest

Shasta Lake has a seasonal temperature swing of 39°F / from 44°F in December to 83°F in July. Total annual precipitation is 54.0 inches, with January being the wettest month (10.0") and July the driest (0.2").

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