May weather forecast
Maryland, USA

May ushers in a new season in Maryland, characterized by a marked increase in warmth and a departure from the cooler temperatures of spring. This month is a prelude to the hot and humid summer, and the weather becomes distinctly warmer, with temperatures occasionally reaching above 100°F (37.8°C) in some areas.

The western region, including places like Cumberland, begins to experience more moderate temperatures, leaving behind the colder and snowier conditions of previous months. Snowfall is virtually absent across the state, and frost becomes an increasingly rare phenomenon.

The influence of the Atlantic Ocean, coupled with the warming effect of the Appalachian Mountains, contributes to the overall rise in temperatures. These geographical factors create a conducive environment for the growth of lush vegetation and flowering plants, enhancing the natural beauty of the state.

Comparatively, May offers more stable and predictable weather than April. The fluctuations between warm and cold fronts become less pronounced, leading to a consistent warming trend. Outdoor activities become more appealing as the days lengthen, and the sun shines with greater intensity.

Driving conditions continue to improve, free from the challenges of winter's slush and ice. The anticipation of summer's full embrace grows, as May serves as a transitional period between the refreshing coolness of spring and the impending heat and humidity of June and July.

In contrast to the next month of June, when summer is in full swing, May in Maryland offers a delightful blend of warmth without the extreme heat, making it an ideal time for outdoor exploration and enjoyment of the state's diverse landscapes.

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• Baltimore - May »
  In Baltimore during the entire year, the rain falls for 158.5 days and collects up to 30.75" (781mm) of precipitation. With an average relative humidity of 77%, May is the most humid month in Baltimore, Maryland.
• Frederick - May »
  The month with the most rainfall in Frederick is May, when the rain falls for 18.6 days and typically aggregates up to 3.54" (90mm) of precipitation. The months with the highest humidity in Frederick are May, October and December, with an average relative humidity of 79%.
• Rockville - May »
  On the first day of May in Rockville sunrise is at 6:10 am and sunset at 8:01 pm. On the first day of May in Rockville sunrise is at 6:10 am and sunset at 8:01 pm.
• Gaithersburg - May »
  May, October and December, with an average relative humidity of 77%, are most humid months in Gaithersburg, Maryland. May, October and December, with an average relative humidity of 77%, are the most humid months in Gaithersburg, Maryland.
• Bowie - May »
  On the last day of the month, in Bowie sunrise is at 5:43 am and sunset at 8:26 pm EDT. In Bowie snow does not fall in May through October.
• Hagerstown - May »
  The month with the most rainfall in Hagerstown is May, when the rain falls for 18.3 days and typically aggregates up to 3.11" (79mm) of precipitation. The months with the highest humidity in Hagerstown, Maryland, are May and October, with an average relative humidity of 79%.
• Annapolis - May »
  With an average relative humidity of 78%, May is the most humid month in Annapolis, Maryland. In Annapolis, during the entire year, the rain falls for 120.4 days and collects up to 10.47" (266mm) of precipitation.
• College Park - May »
  The months with the highest humidity in College Park are May, October and December, with an average relative humidity of 76%. The months with the highest UV index in College Park, Maryland, are May through August, with an average maximum UV index of 6.
• Salisbury - May »
  In Salisbury, during the entire year, the rain falls for 152.1 days and collects up to 27.17" (690mm) of precipitation. In Salisbury, during May, the rain falls for 14.4 days and regularly aggregates up to 1.93" (49mm) of precipitation.
• Laurel - May »
  May sticks out in Laurel, Maryland's weather calendar as the month carrying the maximum rainfall of 3.03" (77mm). In Laurel, Maryland, during May, the rain falls for 17.7 days and regularly aggregates up to 3.03" (77mm) of precipitation.
• Greenbelt - May »
  As the merry month of May arrives, Greenbelt, Maryland princely bathes under sunshine for 14.3 hours a day. In May, in Greenbelt the rain falls for 17.9 days.
• Cumberland - May »
  On the first day of May in Cumberland, sunrise is at 6:15 am and sunset at 8:08 pm. In Cumberland, in May, it is raining for 18.3 days, with typically 2.36" (60mm) of accumulated precipitation.