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.

---

• Manchester - May »
  In Manchester, during the entire year, snow falls for 26.1 days and aggregates up to 11.54" (293mm) of snow. During 0.1 snowfall days, in May, Manchester aggregates 0.04" (1mm) of snow.
• Nashua - May »
  In Nashua, New Hampshire, in May, it is raining for 9.4 days, with typically 0.63" (16mm) of accumulated precipitation. On the first day of May in Nashua sunrise is at 5:38 am and sunset at 7:46 pm.
• Concord - May »
  On the last day of the month, in Concord sunrise is at 5:09 am and sunset at 8:18 pm EDT. In Concord during May, the rain falls for 14.8 days and regularly aggregates up to 2.09" (53mm) of precipitation.
• Derry - May »
  In Derry, during the entire year, the rain falls for 104.4 days and collects up to 12.95" (329mm) of precipitation. During 0.1 snowfall days, in May, Derry aggregates 0.04" (1mm) of snow.
• 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 »
  On the last day of the month, in Rochester sunrise is at 5:06 am and sunset at 8:16 pm EDT. In Rochester, during the entire year, snow falls for 40 days and aggregates up to 27.8" (706mm) of snow.
• Salem - May »
  In Salem, during the entire year, snow falls for 31.9 days and aggregates up to 20.94" (532mm) of snow. In Salem in May, during 15.9 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.
• Merrimack - May »
  Throughout the year, in Merrimack, there are 26.1 snowfall days, and 11.54" (293mm) of snow is accumulated. In Merrimack, during the entire year, the rain falls for 104.4 days and collects up to 12.95" (329mm) of precipitation.
• Londonderry - May »
  On the last day of May, in Londonderry sunrise is at 5:09 am and sunset at 8:17 pm EDT. In Londonderry, during the entire year, snow falls for 26.1 days and aggregates up to 11.54" (293mm) of snow.
• Keene - May »
  Throughout the year, in Keene there are 125.1 rainfall days, and 11.69" (297mm) of precipitation is accumulated. In Keene in May, during 14.6 rainfall days, 1.14" (29mm) of precipitation is typically accumulated.
• Bedford - May »
  In Bedford, during the entire year, the rain falls for 104.4 days and collects up to 12.95" (329mm) of precipitation. In Bedford, during the entire year, snow falls for 26.1 days and aggregates up to 11.54" (293mm) of snow.