Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Martinsburg experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 26°F in January while summers reach 71°F in July. The area gets 275 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 42.4 inches. The area receives 41.6 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 1,176 feet.
Temperature
26°F Jan (-4°C)71°F Jul (22°C)
Annual Average
49.0°F
9% below US avg
January Average
26°F (-4°C)
July Average
71°F (22°C)
Sunny Days
275 days/yr
Geography
Elevation
1,176 ft (358 m)
Area
0.2 sq mi (0.5 km²)
Population Density
1,744/sq mi
Coordinates
40.2698°N, 82.3544°W
Timezone
America/New_York
County
Knox County County
Nearest Airport
John Glenn Columbus International (CMH) 34 miles away
Precipitation & Snow
Annual Rainfall42.4"
12% above US avg
Snowfall41.6"
Wettest Month (Jul)4.45"
Driest Month (Feb)2.32"
Air Quality
AQI Median
43.0
Rating
Good
Natural Hazard Risk
Overall Risk
Relatively Low
Risk Score
61.0 / 100
Social Vulnerability
62.7 / 100
Community Resilience
80.1 / 100
Hazard Breakdown
Tornado
Relatively Low
Hurricane
Very Low
Earthquake
Very Low
Wildfire
Very Low
Flood
Relatively Low
Hail
Relatively Moderate
Strong Wind
Relatively Moderate
Heat Wave
Relatively Low
Winter Weather
Relatively Moderate
Lightning
Relatively Moderate
Ice Storm
Relatively Moderate
Drought
No Rating
Cold Wave
Relatively Low
Landslide
Relatively Low
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
22 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M3.7.
Mar 12, 2007
Ohio
M3.7
139 km
5 km
Nov 20, 2013
2 km SW of Buchtel, Ohio
M3.5
93 km
8 km
May 24, 2017
1 km S of McArthur, Ohio
M3.4
116 km
10 km
Jun 3, 2017
1 km WNW of Batesville, Ohio
M3.4
98 km
2 km
Apr 24, 2025
3 km S of Pleasant City, Ohio
M3.1
82 km
6 km
Apr 22, 2025
3 km ESE of Buffalo, Ohio
M3.1
85 km
5 km
Aug 31, 2011
3 km SE of Lowell, Ohio
M3.1
113 km
5 km
Apr 2, 2017
5 km W of Graysville, Ohio
M3.0
116 km
4 km
Jun 5, 2011
5 km W of Lodi, Ohio
M3.0
88 km
5 km
Mar 30, 2024
2 km SSW of Maple Ridge, Ohio
M3.0
130 km
6 km
Aug 7, 2000
2 km S of Limaville, Ohio
M2.9
127 km
5 km
May 9, 2025
3 km S of Pleasant City, Ohio
M2.9
82 km
5 km
Apr 29, 2025
1 km SE of Pleasant City, Ohio
M2.8
82 km
2 km
Aug 31, 2011
2 km NNW of Belmont, West Virginia
M2.8
134 km
5 km
Feb 3, 2025
0 km NE of Reno, Ohio
M2.8
129 km
10 km
May 17, 2010
2 km S of Boston Heights, Ohio
M2.7
129 km
5 km
Nov 25, 1998
1 km SSW of New London, Ohio
M2.7
89 km
5 km
May 14, 2010
1 km ENE of Gibsonburg, Ohio
M2.7
148 km
5 km
Feb 11, 2015
8 km SE of Richmond Dale, Ohio
M2.6
129 km
20 km
Sep 4, 2011
3 km N of Saint Marys, West Virginia
M2.6
136 km
5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
380 tornadoes (EF0+) recorded within 100 km since 1950.
Strongest on record: EF3. Total: 13 fatalities, 381 injuries.
Date
Rating
Distance
Path
Fatalities
Oct 13, 1999
EF3
92 km
3.6 mi
0
May 31, 1985
EF3
33 km
29.0 mi
1
Jun 13, 1981
EF3
53 km
3.8 mi
4
Feb 22, 1971
EF3
59 km
6.8 mi
0
Sep 3, 1970
EF3
87 km
2.3 mi
0
May 8, 1969
EF3
98 km
2.0 mi
1
Jun 5, 2024
EF2
25 km
1.3 mi
0
Mar 14, 2024
EF2
89 km
10.3 mi
0
Mar 14, 2024
EF2
100 km
19.5 mi
0
Feb 28, 2024
EF2
48 km
14.0 mi
0
May 27, 2019
EF2
90 km
5.3 mi
0
Apr 14, 2019
EF2
70 km
17.0 mi
0
Nov 5, 2017
EF2
63 km
1.1 mi
0
Sep 4, 2017
EF2
73 km
16.7 mi
0
Apr 20, 2011
EF2
29 km
3.9 mi
0
Sep 16, 2010
EF2
96 km
3.3 mi
0
Sep 16, 2010
EF2
65 km
11.5 mi
0
Sep 16, 2010
EF2
57 km
7.0 mi
0
Oct 11, 2006
EF2
83 km
0.5 mi
0
Oct 11, 2006
EF2
42 km
0.5 mi
0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
4 wildfires (100+ acres) recorded within 100 km.
Largest: LONG RIDGE RX UNIT 37-38 (1,050 acres, 2022).
Year
Name
Acres Burned
Distance
2022
LONG RIDGE RX UNIT 37-38
1,050
90 km
2021
LONG RIDGE RX UNIT 1-12
1,037
88 km
2022
LONG RIDGE RX UNIT 11-19
936
89 km
2022
LONG RIDGE RX UNIT 24
709
95 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
26°F (-4°C)
2.4 in
Coldest
February
28°F (-2°C)
2.3 in
Driest
March
39°F (4°C)
3.4 in
April
49°F (9°C)
3.6 in
May
59°F (15°C)
4.2 in
June
68°F (20°C)
4.1 in
July
71°F (22°C)
4.5 in
Warmest, Wettest
August
70°F (21°C)
3.7 in
September
64°F (18°C)
3.3 in
October
52°F (11°C)
2.6 in
November
42°F (5°C)
3.4 in
December
32°F (-0°C)
3.0 in
Martinsburg has a seasonal temperature swing of 45°F / from 26°F in January to 71°F in July. Total annual precipitation is 40.2 inches, with July being the wettest month (4.5") and February the driest (2.3").