May weather forecast
New Hampshire, USA

May in New Hampshire is characterized by the full arrival of spring, with temperatures consistently rising and the landscape coming to life. Average lows for the state range from 42°F (5.6°C) to 49°F (9.4°C), and average highs vary between 65°F (18.3°C) to 73°F (22.8°C). These temperatures represent a continued warming trend from April, and the weather is generally milder and more stable.

Snow is virtually absent in May, except in some of the highest elevations. Rain becomes more common, replacing the snowfall of winter, but it is typically moderate and evenly distributed. The southeastern part of the state continues to benefit from the moderating influence of the Atlantic Ocean, while the northern mountain ranges maintain their weather-shaping role.

The transition from winter to spring is complete in May, with trees leafing out, flowers blooming, and wildlife becoming more active. Outdoor activities become more appealing as trails dry out and waterways become navigable.

Compared to the unpredictable weather of April, May in New Hampshire offers more consistent warmth and sunshine. It serves as a prelude to the summer months, with pleasant temperatures and an abundance of natural beauty. The month marks a departure from the transitional weather of spring, ushering in the more stable and warm conditions typical of summer in the Granite State.

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• Manchester - May »
  In Manchester, during the entire year, the rain falls for 104.4 days and collects up to 12.95" (329mm) of precipitation. Throughout the year, in Manchester, there are 26.1 snowfall days, and 11.54" (293mm) of snow is accumulated.
• Nashua - May »
  In Nashua, during May, the rain falls for 9.4 days and regularly aggregates up to 0.63" (16mm) of precipitation. During 0.1 snowfall days, in May, Nashua aggregates 0.04" (1mm) of snow.
• Concord - May »
  In Concord, during May, the rain falls for 14.8 days and regularly aggregates up to 2.09" (53mm) of precipitation. In Concord, during the entire year, snow falls for 44.5 days and aggregates up to 28.94" (735mm) of snow.
• Derry - May »
  In Derry, during the entire year, snow falls for 26.1 days and aggregates up to 11.54" (293mm) of snow. On the last day of the month, in Derry, sunrise is at 5:09 am and sunset at 8:16 pm EDT.
• Dover - May »
  This month proves to be perfect for exploring Dover's outdoor attractions like Cocheco River, flower festivals, farmers markets, and numerous parks draped in vibrant green. May in Dover intensifies the spring weather with a significant rise in temperatures, approaching summer-like warmth, and leaving behind April’s sporadic cool snaps.
• Rochester - May »
  In Rochester during the entire year, snow falls for 40 days and aggregates up to 27.8" (706mm) of snow. In Rochester during May, the rain falls for 15.1 days and regularly aggregates up to 2.13" (54mm) of precipitation.
• Salem - May »
  In Salem, during May, the rain falls for 15.9 days and regularly aggregates up to 1.97" (50mm) of precipitation. During 0.1 snowfall days, in May, Salem aggregates 0.16" (4mm) of snow.
• Merrimack - May »
  On the last day of the month, in Merrimack sunrise is at 5:10 am and sunset at 8:16 pm EDT. In Merrimack in May, it is raining for 12 days, with typically 0.98" (25mm) of accumulated precipitation.
• Londonderry - May »
  On the last day of the month, in Londonderry sunrise is at 5:09 am and sunset at 8:16 pm EDT. In Londonderry, during the entire year, the rain falls for 104.4 days and collects up to 12.95" (329mm) of precipitation.
• Keene - May »
  Throughout the year, in Keene, there are 39.8 snowfall days, and 10.2" (259mm) of snow is accumulated. In Keene, during the entire year, the rain falls for 125.1 days and collects up to 11.69" (297mm) of precipitation.
• Bedford - May »
  In Bedford during the entire year, snow falls for 26.1 days and aggregates up to 11.54" (293mm) of snow. In Bedford, during May, the rain falls for 12 days and regularly aggregates up to 0.98" (25mm) of precipitation.