Martinsburg, West Virginia Weather
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Climate of Martinsburg: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), July is usually the hottest month in Martinsburg, with average daytime highs around 31°C. January is the coolest, when nights typically fall to about -6°C and frost is possible on the coldest nights. That is a wide yearly range of roughly 37°C, so the seasons feel very different from each other.
The area receives about 1050 mm of rain in a typical year. Most of it falls from May to July and September, and May is the wettest month at roughly 118 mm.
For outdoor plans and travel, August and October usually offer the most comfortable weather in Martinsburg, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 3° | -6° | 64 mm | 84% |
| Feb | 4° | -6° | 64 mm | 83% |
| Mar | 10° | -1° | 78 mm | 80% |
| Apr | 17° | 5° | 90 mm | 77% |
| May | 23° | 11° | 118 mm | 77% |
| Jun | 28° | 16° | 106 mm | 74% |
| Jul | 31° | 19° | 102 mm | 68% |
| Aug | 30° | 18° | 87 mm | 67% |
| Sep | 26° | 14° | 104 mm | 69% |
| Oct | 19° | 7° | 88 mm | 75% |
| Nov | 11° | 0° | 71 mm | 79% |
| Dec | 5° | -4° | 82 mm | 85% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Martinsburg. Values describe typical conditions, not a forecast.
About Martinsburg weather
Martinsburg is a place in West Virginia's humid continental climate, shaped by the Appalachian terrain, located about 340 km east of Charleston. Martinsburg gets warm summers (June–August), milder at higher elevations each year. Martinsburg closes out the year with cold winters with regular mountain snow. This page shows live, auto-refreshing weather for Martinsburg: current conditions, an hourly breakdown, a 16-day outlook, a date-lookup tool for any past or future date, and real-time air quality, sourced from Open-Meteo. Local timezone: America/New_York.
Frequently asked questions
Martinsburg is about 340 km east of Charleston, in West Virginia.
Martinsburg sees cold winters with regular mountain snow.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for Martinsburg's exact coordinates. No fixed schedule, the page updates whenever you load it.
July is usually the hottest month in Martinsburg, with average daytime highs of about 31°C and nights around 19°C.
The coldest nights come in January, when the average low is about -6°C and daytime highs reach around 3°C. Frost is possible on clear, calm nights.
Martinsburg receives about 1050 mm of rain in a typical year. May is the wettest month at roughly 118 mm, and the main rainy period is May to July and September.
August and October usually offer the most comfortable weather in Martinsburg, with mild daytime temperatures and little rain.
In November Martinsburg typically sees daytime highs near 11°C and lows near 0°C, with about 71 mm of rain over the month and average humidity around 79%. Check the live forecast above for this week's actual conditions.
Up to 16 days ahead using the extended forecast and date picker above; further-out or historical dates use the same date lookup tool.
The current temperature for Martinsburg updates automatically at the top of this page — scroll to the hourly strip below to see how it's expected to change over the day.
Martinsburg's day-to-day weather follows the broader pattern of West Virginia described above. See the hourly weather forecast or the air quality index for more detail.