Martinsburg weather in May

In May, Martinsburg sees average daytime highs of 73°F and overnight lows near 54°F, with 3.9 in of rain across 11.7 wet days and about 14.1 hours of daylight. It is the 5th-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 70°F in the first days to 77°F by the end. The sky is clear or mostly clear about 24% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 36 min at the start of May to 14 h 30 min by month's end. Set against the rest of the year, May is Martinsburg's 11th-clearest and 8th-windiest month. For the whole year in context, see Martinsburg's year-round climate.

Daytime high
73°
5th warmest
Overnight low
54°
8th coldest
Rainfall
3.9 in
11.7 wet days
Daylight
14 h 12 min
5:03 AM – 7:13 PM
Cloud cover
64%
11th clearest
Wind
6 mph
8th windiest
Solar energy
5.65 kWh/m²
Travel score
6.4
out of 10

Martinsburg is city in West Virginia, United States.

Density
1,026/km²
people per km²
Founded
1778

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 70°F in the first days to 77°F by the end.

A typical May day in Martinsburg reaches about 73°F in the afternoon and slips back to 54°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 60°F and 85°F. Set against its neighbours, May runs about 9°F warmer than April and about 9°F cooler than June.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
16949
26950
36950
47050
57051
67051
77151
87151
97152
107152
117152
127253
137253
147253
157253
167354
177354
187354
197455
207455
217455
227556
237556
247556
257657
267657
277658
287758
297758
307858
317859

How May really feels in Martinsburg

Once humidity and wind are folded in, May averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Martinsburg weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan40° / 26°3.08.83.69.50.0
Feb43° / 27°2.78.33.510.40.6
Mar52° / 34°3.810.12.511.72.8
Apr64° / 45°3.610.80.2135.6
May73° / 54°3.911.7014.16.4
Jun82° / 63°3.410.5014.75.9
Jul87° / 68°3.410.5014.54.8
Aug85° / 66°2.89.5013.55.4
Sep78° / 59°4.19.2012.36.9
Oct66° / 47°3.37.90116.3
Nov54° / 37°3.07.60.59.83.4
Dec44° / 30°3.38.62.39.30.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 58%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24357
34357
44456
54456
64456
74357
84357
94258
104357
114258
124258
134258
144258
154159
164060
174060
184060
194060
204060
214060
224060
234060
244258
254159
264159
274258
284258
294357
304357
314357

Chance of precipitation in May

Any precipitation

Martinsburg gets around 3.9 in of rain over 11.7 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 38% and peaks near 39% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
239
339
439
539
639
739
839
939
1039
1139
1239
1339
1438
1538
1638
1738
1837
1937
2037
2137
2237
2337
2436
2536
2636
2736
2836
2936
3036
3135

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the dry band about 62% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1791560
2781660
3761770
4751870
5731980
6722080
7702091
8702091
96920101
106820102
116720112
126720112
136520123
146619123
156419134
166419134
176318145
186118156
196018166
205818177
215618188
225518189
2353181910
2453181910
2551182011
2649182012
2748192112
2847192113
2946202113
3045202114
3144202115

Wind in May

Winds average 6 mph in May.

Across May, daily wind ranges from about 5 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
295calm
305calm
315calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 36 min at the start of May to 14 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over May. Sunrise moves from 5:20 AM to 4:53 AM, and sunset from 6:58 PM to 7:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:206:58
213.75:196:59
313.75:177:00
413.85:167:01
513.85:157:02
613.85:147:03
713.95:137:04
813.95:117:05
913.95:107:06
1014.05:097:07
1114.05:087:08
1214.05:077:09
1314.15:067:10
1414.15:057:11
1514.15:047:12
1614.25:037:13
1714.25:027:14
1814.25:027:15
1914.25:017:16
2014.35:007:17
2114.34:597:17
2214.34:587:18
2314.44:587:19
2414.44:577:20
2514.44:567:21
2614.44:567:22
2714.54:557:23
2814.54:547:23
2914.54:547:24
3014.54:537:25
3114.54:537:26

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.65 kWh/m².

For context, solar energy here swings from a low near 1.84 kWh/m² to a high of 6.14 kWh/m² in June across the year — May's 5.65 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.7Bright
215.7Bright
225.7Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
315.9Bright
Planning a trip in May

Is May a good time to visit Martinsburg?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.4
Sightseeing
2nd-best month of the year
4.8
Beach & pool
5th-best month of the year

May is a reasonable time to visit Martinsburg for sightseeing.

What to pack for Martinsburg in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Martinsburg sees daytime highs around 73°F and nights near 54°F. Worth packing: light clothes, rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in Martinsburg in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Martinsburg peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 22UV 9Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug7Very high
Sep6High
Oct3Moderate
Nov2Moderate
Dec2Low

Air quality in Martinsburg in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Martinsburg is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1316 µg/m³Nov 137 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar12Good
Apr12Good
May14Moderate
Jun16Moderate
Jul16Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov7Good
Dec8Good
Location & terrain

Where is Martinsburg?

Martinsburg sits at 39.5°N, 78.0°W, 453 ft above sea level, in United States. The nearest listed city is Hagerstown, 18 mi away.

Topography around Martinsburg

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Martinsburg.

Within 2 miles, the terrain around Martinsburg has only modest variations in elevation — a maximum elevation change of 518 ft around an average of 492 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,526 ft; within 50 miles, large variations in elevation — a maximum elevation change of 3,386 ft.

The land around Martinsburg is covered by trees (52%), artificial surfaces (25%) and grassland (21%) within 2 miles, trees (57%) and grassland (30%) within 10 miles, and trees (67%) and grassland (20%) within 50 miles.

2 miles
518 ft
10 miles
1,526 ft
50 miles
3,386 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Hagerstown 18 mi · Winchester 22 mi · Ballenger Creek 29 mi · Frederick 30 mi · Leesburg 32 mi · Chambersburg 37 mi · Ashburn 39 mi · Front Royal 39 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Martinsburg (39.4562°, -77.9639°, elevation 453 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).