Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Roseville enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 47°F in January while summers reach 80°F in July. The area gets 313 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 35.5 inches. The area receives 1.2 inches of snow annually. Air quality is rated Good with a median AQI of 48. The city sits at an elevation of 141 feet.
Temperature
47°F Jan (8°C)80°F Jul (27°C)
Annual Average
60.8°F
13% above US avg
January Average
47°F (8°C)
July Average
80°F (27°C)
Sunny Days
313 days/yr
Geography
Elevation
141 ft (43 m)
Area
44.1 sq mi (114.2 km²)
Population Density
3,457/sq mi
Coordinates
38.7703°N, 121.3196°W
Timezone
America/Los_Angeles
County
Sacramento County County
Nearest Airport
Sacramento International (SMF) 16 miles away
Precipitation & Snow
Annual Rainfall35.5"
7% below US avg
Snowfall1.2"
Wettest Month (Jan)4.06"
Driest Month (Jul)0.12"
Air Quality
AQI Median
48.0
Rating
Good
Natural Hazard Risk
Overall Risk
Relatively High
Risk Score
98.1 / 100
Social Vulnerability
37.4 / 100
Community Resilience
57.0 / 100
Hazard Breakdown
Tornado
Relatively Moderate
Earthquake
Relatively High
Wildfire
Relatively Moderate
Flood
Relatively High
Hail
Relatively Low
Strong Wind
Very Low
Heat Wave
Relatively Moderate
Winter Weather
Very Low
Lightning
Relatively Moderate
Drought
Relatively High
Cold Wave
No Rating
Landslide
Relatively Low
Coastal Flood
No Rating
Volcano
Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
4,953 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M6.1.
Sep 12, 1994
4 km S of Carter Springs, Nevada
M6.1
145 km
14 km
Aug 24, 2014
The 2014 South Napa, California Earthquake
M6.0
106 km
11 km
Aug 10, 2001
3 km N of Blairsden, California
M5.2
131 km
5 km
Apr 26, 2008
1 km NW of Mogul, Nevada
M5.1
146 km
3 km
Sep 12, 1994
8 km ESE of Mesa Vista, California
M5.1
140 km
-1 km
Aug 10, 2016
20 km NNE of Upper Lake, California
M5.1
142 km
14 km
Sep 3, 2000
5 km WSW of Yountville, California
M4.9
105 km
9 km
Dec 22, 1995
California-Nevada border region
M4.9
146 km
4 km
Sep 4, 1995
13 km SW of Middletown, California
M4.8
124 km
7 km
Oct 30, 1998
4 km N of Tahoe Vista, California
M4.8
124 km
1 km
Apr 26, 2008
0 km N of Mogul, Nevada
M4.8
146 km
3 km
Dec 28, 1995
9 km WNW of Topaz Lake, Nevada
M4.8
145 km
-1 km
Jun 26, 2005
8 km NNW of Tahoe Vista, California
M4.8
122 km
-2 km
May 12, 2006
7 km W of Cobb, California
M4.7
130 km
4 km
Dec 23, 1995
8 km WNW of Topaz Lake, Nevada
M4.7
146 km
-1 km
May 7, 2021
19km NW of Truckee, CA
M4.7
116 km
10 km
Jan 2, 2025
4 km NW of Cobb, CA
M4.7
125 km
1 km
Jan 11, 2000
6 km N of Geyserville, California
M4.6
138 km
6 km
Feb 18, 2004
4 km WNW of Cobb, California
M4.6
126 km
3 km
Sep 19, 2023
15 km SW of Westley, CA
M4.5
148 km
4 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: 7 injuries.
Date
Rating
Distance
Path
Fatalities
May 25, 2011
EF2
96 km
0.2 mi
0
Feb 10, 1994
EF2
86 km
0.3 mi
0
Feb 7, 1978
EF2
14 km
1.9 mi
0
Jan 10, 2023
EF1
91 km
0.4 mi
0
Dec 24, 2015
EF1
19 km
6.2 mi
0
Oct 22, 2012
EF1
36 km
4.0 mi
0
Oct 22, 2012
EF1
39 km
0.3 mi
0
Oct 22, 2012
EF1
42 km
2.0 mi
0
Jan 8, 2005
EF1
79 km
0.1 mi
0
Jan 7, 1993
EF1
80 km
0.1 mi
0
Dec 17, 1992
EF1
61 km
5.0 mi
0
Dec 17, 1992
EF1
86 km
1.0 mi
0
Apr 19, 1988
EF1
16 km
1.0 mi
0
Apr 19, 1988
EF1
68 km
0.2 mi
0
Mar 22, 1983
EF1
6 km
2.0 mi
0
Jun 28, 1970
EF1
77 km
2.3 mi
0
May 31, 1967
EF1
89 km
0.1 mi
0
Jan 14, 2023
EF0
53 km
0.3 mi
0
Nov 8, 2022
EF0
49 km
0.8 mi
0
Nov 18, 2020
EF0
32 km
4.4 mi
0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Tsunami History
1 tsunami recorded within 500 km.
Highest wave on record: 4.5 m (15 ft).
Year
Location
Cause
Max Wave
Deaths
Distance
1868
N. CALIFORNIA
Eruption + Earthquake
4.5 m
30
137 km
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
2 volcanoes within 200 km.
Closest: Clear Lake (128 km).
Name
Type
Elevation
Last Eruption
Distance
Clear Lake
Volcanic field
1,439 m (4,721 ft)
Unknown
128 km
Lassen Volcanic Center
Stratovolcano
3,187 m (10,456 ft)
1917
192 km
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km.
Largest: HENNESSEY (314,241 acres, 2020).
Year
Name
Acres Burned
Distance
2020
HENNESSEY
314,241
85 km
2021
CALDOR
226,583
89 km
2014
KING
99,070
70 km
2015
ROCKY
96,125
99 km
2018
COUNTY
92,450
73 km
2022
MOSQUITO
77,858
62 km
2015
BUTTE
72,894
85 km
2017
ATLAS
51,664
92 km
2004
RUMSEY
39,335
83 km
1999
SIXTEEN
37,162
88 km
1988
49R
36,673
54 km
1988
MILLER
35,750
77 km
2013
AMERICAN
27,938
75 km
1992
CLEVELAND
21,835
77 km
2008
AMERICAN RIVER COMPLEX (GOVERNMENT)
20,709
79 km
2012
SIXTEEN COMPLEX
18,191
89 km
1992
GULCH
18,019
98 km
2004
POWER
17,266
95 km
2001
STAR
16,846
81 km
2017
CASCADE
16,155
66 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
47°F (8°C)
4.1 in
Wettest
February
52°F (11°C)
3.3 in
March
55°F (13°C)
3.2 in
April
60°F (15°C)
1.7 in
May
67°F (19°C)
0.4 in
June
74°F (23°C)
0.2 in
July
80°F (27°C)
0.1 in
Warmest, Driest
August
77°F (25°C)
0.1 in
September
73°F (23°C)
0.4 in
October
65°F (18°C)
1.5 in
November
53°F (12°C)
3.7 in
December
46°F (8°C)
3.2 in
Coldest
Roseville has a seasonal temperature swing of 34°F / from 46°F in December to 80°F in July. Total annual precipitation is 21.7 inches, with January being the wettest month (4.1") and July the driest (0.1").