Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Donna has a warm climate with an average annual temperature of 75°F (24°C). Winters average 60°F in January while summers reach 87°F in July. The area gets 312 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 24.1 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 42. The city sits at an elevation of 87 feet.
Temperature
60°F Jan (15°C)87°F Jul (30°C)
Annual Average
75.0°F
39% above US avg
January Average
60°F (15°C)
July Average
87°F (30°C)
Sunny Days
312 days/yr
Geography
Elevation
87 ft (27 m)
Area
8.3 sq mi (21.5 km²)
Population Density
2,023/sq mi
Coordinates
26.1611°N, 98.0389°W
Timezone
America/Chicago
County
Hidalgo County County
Nearest Airport
Mc Allen International (MFE) 10 miles away
Precipitation & Snow
Annual Rainfall24.1"
37% below US avg
Wettest Month (Sep)4.33"
Driest Month (Mar)0.59"
Air Quality
AQI Median
42.0
Rating
Good
Natural Hazard Risk
Overall Risk
Relatively High
Risk Score
99.0 / 100
Social Vulnerability
92.7 / 100
Community Resilience
0.9 / 100
Hazard Breakdown
Tornado
Relatively High
Hurricane
Very High
Earthquake
Relatively Low
Wildfire
Relatively Low
Flood
Relatively High
Hail
Very High
Strong Wind
Relatively High
Heat Wave
Relatively High
Winter Weather
Relatively High
Lightning
Relatively High
Ice Storm
Very High
Drought
Relatively High
Cold Wave
Very High
Landslide
Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
5 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M4.1.
Jan 19, 2014
12 km SSW of China, Mexico
M4.1
140 km
12 km
Feb 11, 2014
31 km SSE of China, Mexico
M4.0
136 km
41 km
Mar 2, 2014
15 km SW of China, Mexico
M4.0
145 km
8 km
Mar 5, 2014
18 km SSW of China, Mexico
M3.9
142 km
10 km
Nov 26, 2013
22 km S of China, Mexico
M3.6
141 km
37 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
13 hurricanes (Category 1+) recorded within 500 km since 1980.
Strongest on record: Category 5.
Year
Name
Category
Max Wind
Closest
2024
Beryl
Category 1
92 mph
280 km
2021
Nicholas
Category 1
75 mph
274 km
2020
Hanna
Category 1
92 mph
49 km
2017
Harvey
Category 4
132 mph
202 km
2010
Alex
Category 2
109 mph
219 km
2008
Dolly
Category 2
98 mph
45 km
2005
Emily
Category 3
127 mph
140 km
2003
Claudette
Category 1
92 mph
294 km
2003
Erika
Category 1
75 mph
115 km
1999
Bret
Category 4
144 mph
89 km
1988
Gilbert
Category 4
132 mph
190 km
1983
Barry
Category 1
81 mph
100 km
1980
Allen
Category 5
161 mph
51 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
130 tornadoes (EF0+) recorded within 100 km since 1950.
Strongest on record: EF3. Total: 1 fatality, 39 injuries.
Date
Rating
Distance
Path
Fatalities
Mar 15, 1983
EF3
31 km
6.1 mi
0
May 12, 1969
EF3
44 km
0.1 mi
0
May 12, 1969
EF3
36 km
0.1 mi
0
Apr 19, 1965
EF3
67 km
1.5 mi
0
May 5, 1991
EF2
59 km
1.0 mi
0
Aug 9, 1980
EF2
53 km
4.6 mi
0
May 24, 1970
EF2
46 km
25.5 mi
0
May 12, 1969
EF2
64 km
0.1 mi
0
Apr 26, 1967
EF2
43 km
40.2 mi
0
Jun 1, 1962
EF2
43 km
1.0 mi
0
Jan 26, 1950
EF2
80 km
4.7 mi
0
May 13, 2023
EF1
78 km
0.5 mi
1
Oct 30, 2015
EF1
43 km
0.7 mi
0
Jun 30, 2011
EF1
16 km
0.4 mi
0
Jul 16, 2007
EF1
20 km
1.0 mi
0
Apr 30, 2003
EF1
42 km
0.3 mi
0
May 21, 2001
EF1
29 km
0.2 mi
0
May 21, 2001
EF1
30 km
0.1 mi
0
Apr 4, 1997
EF1
61 km
0.5 mi
0
Jun 14, 1994
EF1
51 km
0.5 mi
0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km.
Largest: BURNS RANCH FIRE (58,395 acres, 2008).
Year
Name
Acres Burned
Distance
2008
BURNS RANCH FIRE
58,395
63 km
2022
HAYFIELD SOUTH
11,038
75 km
2021
KING
9,793
82 km
2022
VIB
7,817
85 km
2022
POLO
5,571
80 km
2008
ENCINO
3,979
81 km
2008
UNNAMED
3,389
99 km
2011
KING RANCH
3,075
68 km
2009
SAN CARLOS
2,849
86 km
2021
JONES
2,178
96 km
2010
ENCINITOS RANCH
1,967
75 km
2022
755
1,846
84 km
2011
ENCINITOS
1,748
75 km
2022
DEER
1,657
94 km
2009
STILLMAN
1,466
58 km
2023
ELECTRIC SLIDE
1,410
86 km
2008
SAN RAFAEL RANCH
1,407
88 km
2005
BORREGO
1,392
99 km
2008
281
1,308
84 km
2022
LA PALOMA
1,214
59 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
60°F (15°C)
1.5 in
Coldest
February
62°F (17°C)
1.3 in
March
69°F (21°C)
0.6 in
Driest
April
75°F (24°C)
1.3 in
May
79°F (26°C)
2.9 in
June
83°F (28°C)
2.8 in
July
87°F (30°C)
2.1 in
Warmest
August
85°F (30°C)
2.4 in
September
82°F (28°C)
4.3 in
Wettest
October
75°F (24°C)
2.2 in
November
68°F (20°C)
1.1 in
December
61°F (16°C)
1.1 in
Donna has a seasonal temperature swing of 27°F / from 60°F in January to 87°F in July. Total annual precipitation is 23.8 inches, with September being the wettest month (4.3") and March the driest (0.6").