Hagerstown, Maryland Weather
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Climate of Hagerstown: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), July is usually the hottest month in Hagerstown, 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 36°C, so the seasons feel very different from each other.
The area receives about 1120 mm of rain in a typical year. Most of it falls from May to July and September to October, and May is the wettest month at roughly 117 mm.
For outdoor plans and travel, August usually offers the most comfortable weather in Hagerstown, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 3° | -6° | 69 mm | 84% |
| Feb | 4° | -5° | 68 mm | 83% |
| Mar | 10° | -1° | 83 mm | 80% |
| Apr | 17° | 5° | 94 mm | 77% |
| May | 22° | 11° | 117 mm | 78% |
| Jun | 28° | 16° | 112 mm | 75% |
| Jul | 31° | 19° | 107 mm | 68% |
| Aug | 30° | 18° | 94 mm | 68% |
| Sep | 26° | 14° | 112 mm | 70% |
| Oct | 19° | 7° | 101 mm | 77% |
| Nov | 11° | 1° | 77 mm | 80% |
| Dec | 5° | -3° | 90 mm | 85% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Hagerstown. Values describe typical conditions, not a forecast.
About Hagerstown weather
Hagerstown lies in Maryland's humid subtropical-to-continental climate along the Chesapeake Bay — about 103 km north-west of Baltimore. Expect hot, humid summers (June–August). Winter brings cool winters (December–February) with occasional snow. This page shows live, auto-refreshing weather for Hagerstown: 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
Hagerstown is about 103 km north-west of Baltimore, in Maryland.
Hagerstown sees cool winters (December–February) with occasional snow.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for Hagerstown's exact coordinates. No fixed schedule, the page updates whenever you load it.
July is usually the hottest month in Hagerstown, 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.
Hagerstown receives about 1120 mm of rain in a typical year. May is the wettest month at roughly 117 mm, and the main rainy period is May to July and September to October.
August usually offers the most comfortable weather in Hagerstown, with mild daytime temperatures and little rain.
In November Hagerstown typically sees daytime highs near 11°C and lows near 1°C, with about 77 mm of rain over the month and average humidity around 80%. 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 Hagerstown 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.
Hagerstown's day-to-day weather follows the broader pattern of Maryland described above. See the hourly weather forecast or the air quality index for more detail.