Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Pasadena has a warm climate with an average annual temperature of 72°F (22°C). Winters average 59°F in January while summers reach 86°F in July. The area gets 311 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 61.3 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 42. The city sits at an elevation of 30 feet.
Temperature
59°F Jan (15°C)86°F Jul (30°C)
Annual Average
71.8°F
33% above US avg
January Average
59°F (15°C)
July Average
86°F (30°C)
Sunny Days
311 days/yr
Geography
Elevation
30 ft (9 m)
Area
44.3 sq mi (114.7 km²)
Population Density
3,418/sq mi
Coordinates
29.6550°N, 95.1511°W
Timezone
America/Chicago
County
Harris County County
Nearest Airport
William P Hobby (HOU) 8 miles away
Precipitation & Snow
Annual Rainfall61.3"
61% above US avg
Snowfall0.0"
Wettest Month (Sep)6.02"
Driest Month (Mar)2.83"
Air Quality
AQI Median
42.0
Rating
Good
Natural Hazard Risk
Overall Risk
Very High
Risk Score
99.9 / 100
Social Vulnerability
67.9 / 100
Community Resilience
17.9 / 100
Hazard Breakdown
Tornado
Very High
Hurricane
Very High
Earthquake
Relatively Moderate
Wildfire
Relatively Low
Flood
Very High
Hail
Relatively Moderate
Strong Wind
Very High
Heat Wave
Very High
Winter Weather
Relatively High
Lightning
Very High
Ice Storm
Very High
Drought
Relatively Moderate
Cold Wave
Very High
Landslide
Relatively Moderate
Coastal Flood
Relatively High
Source: FEMA National Risk Index v1.20 (Dec 2025)
Hurricane History
18 hurricanes (Category 1+) recorded within 500 km since 1980.
Strongest on record: Category 4.
Year
Name
Category
Max Wind
Closest
2024
Beryl
Category 1
92 mph
91 km
2021
Nicholas
Category 1
75 mph
109 km
2020
Laura
Category 4
150 mph
180 km
2020
Delta
Category 3
115 mph
174 km
2020
Hanna
Category 1
81 mph
288 km
2019
Barry
Category 1
75 mph
285 km
2017
Harvey
Category 4
132 mph
234 km
2008
Ike
Category 2
109 mph
25 km
2007
Humberto
Category 1
92 mph
74 km
2005
Rita
Category 3
127 mph
133 km
2003
Claudette
Category 1
92 mph
154 km
2002
Lili
Category 1
92 mph
278 km
1989
Jerry
Category 1
86 mph
53 km
1989
Chantal
Category 1
81 mph
73 km
1986
Bonnie
Category 1
86 mph
87 km
1985
Juan
Category 1
86 mph
212 km
1985
Danny
Category 1
92 mph
237 km
1983
Alicia
Category 3
115 mph
32 km
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tornado History
770 tornadoes (EF0+) recorded within 100 km since 1950.
Strongest on record: EF4. Total: 29 fatalities, 780 injuries.
Date
Rating
Distance
Path
Fatalities
Nov 21, 1992
EF4
15 km
30.0 mi
0
Sep 12, 1961
EF4
52 km
1.0 mi
8
Dec 28, 2024
EF3
44 km
67.9 mi
0
Dec 28, 2024
EF3
58 km
10.3 mi
0
Jan 24, 2023
EF3
12 km
23.3 mi
0
Mar 30, 2002
EF3
13 km
0.7 mi
0
Jan 1, 1999
EF3
78 km
5.5 mi
0
Nov 21, 1992
EF3
41 km
32.0 mi
0
Feb 5, 1986
EF3
57 km
5.0 mi
2
Dec 13, 1977
EF3
19 km
25.1 mi
1
Mar 8, 1976
EF3
42 km
12.7 mi
0
Oct 28, 1974
EF3
14 km
3.3 mi
1
Oct 28, 1974
EF3
76 km
9.6 mi
1
Sep 13, 1974
EF3
59 km
3.6 mi
0
Sep 8, 1969
EF3
8 km
0.8 mi
0
May 27, 1969
EF3
46 km
1.5 mi
3
Mar 23, 1969
EF3
84 km
0.5 mi
0
Dec 12, 1968
EF3
79 km
6.2 mi
0
Aug 18, 1967
EF3
34 km
0.5 mi
0
Apr 18, 1966
EF3
71 km
2.0 mi
0
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km.
Largest: RILEY ROAD (18,999 acres, 2011).
Year
Name
Acres Burned
Distance
2011
RILEY ROAD
18,999
92 km
2007
08 UNIT 1 RX
16,981
86 km
2010
MCR UNIT 2 RX
14,471
94 km
2000
E WHITES 2
13,996
91 km
2012
WF HOLIDAY 1-2
13,251
92 km
2005
RX UNIT 12 1117 2005
10,728
92 km
1992
UNNAMED
9,344
93 km
1986
STAR LAKE
8,876
93 km
2015
WF UNIT 1 1/2
8,840
91 km
1989
UNNAMED
8,539
83 km
1994
UNIT1ARSON
8,287
88 km
1997
MCF WEST
7,786
93 km
1993
UNNAMED
7,714
83 km
2017
WF PERKINS BLOWOUT
7,646
92 km
1990
PERKINS
6,969
99 km
2015
WF WEST END 2015
6,590
79 km
1996
UNNAMED
6,499
95 km
1991
UNNAMED
6,469
82 km
2004
UNIT 1 WF
6,421
89 km
1994
UNIT3ARSON
5,771
98 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
59°F (15°C)
3.9 in
February
56°F (13°C)
3.0 in
March
63°F (17°C)
2.8 in
Driest
April
69°F (21°C)
3.1 in
May
76°F (24°C)
4.6 in
June
81°F (27°C)
5.9 in
July
86°F (30°C)
4.6 in
Warmest
August
83°F (28°C)
4.1 in
September
79°F (26°C)
6.0 in
Wettest
October
71°F (22°C)
4.0 in
November
62°F (17°C)
4.3 in
December
56°F (13°C)
3.7 in
Coldest
Pasadena has a seasonal temperature swing of 30°F / from 56°F in December to 86°F in July. Total annual precipitation is 49.9 inches, with September being the wettest month (6.0") and March the driest (2.8").