Westminster, Maryland Weather
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Climate of Westminster: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), July is usually the hottest month in Westminster, with average daytime highs around 30°C. January is the coolest, when nights typically fall to about -5°C and frost is possible on the coldest nights. That is a wide yearly range of roughly 35°C, so the seasons feel very different from each other.
The area receives about 1160 mm of rain in a typical year. Most of it falls from May to October (around 57% of the yearly total), and June is the wettest month at roughly 117 mm.
There is no long, mild season here; September usually comes closest to comfortable outdoor weather, with highs near 26°C.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 3° | -5° | 70 mm | 84% |
| Feb | 5° | -4° | 71 mm | 82% |
| Mar | 10° | 0° | 85 mm | 80% |
| Apr | 17° | 5° | 94 mm | 77% |
| May | 22° | 12° | 106 mm | 79% |
| Jun | 27° | 17° | 117 mm | 76% |
| Jul | 30° | 20° | 114 mm | 70% |
| Aug | 30° | 19° | 106 mm | 70% |
| Sep | 26° | 15° | 113 mm | 72% |
| Oct | 19° | 8° | 109 mm | 77% |
| Nov | 12° | 2° | 81 mm | 80% |
| Dec | 5° | -2° | 96 mm | 85% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Westminster. Values describe typical conditions, not a forecast.
About Westminster weather
Westminster sits within Maryland's humid subtropical-to-continental climate along the Chesapeake Bay, about 46 km north-west of Baltimore. Conditions turn hot with hot, humid summers (June–August). By December, expect cool winters (December–February) with occasional snow. This page shows live, auto-refreshing weather for Westminster: 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
Westminster is about 46 km north-west of Baltimore, in Maryland.
Westminster 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 Westminster's exact coordinates. No fixed schedule, the page updates whenever you load it.
July is usually the hottest month in Westminster, with average daytime highs of about 30°C and nights around 20°C.
The coldest nights come in January, when the average low is about -5°C and daytime highs reach around 3°C. Frost is possible on clear, calm nights.
Westminster receives about 1160 mm of rain in a typical year. June is the wettest month at roughly 117 mm, and the main rainy period is May to October.
There is no long mild season in Westminster. September usually comes closest to comfortable outdoor weather.
In November Westminster typically sees daytime highs near 12°C and lows near 2°C, with about 81 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.
Live temperature for Westminster is shown at the top of this page and refreshes automatically — see the hourly breakdown below for how it changes through the day.
Westminster'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.