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Merrimack Weather in May

May in Merrimack averages 21°C (70°F) during the day and 9°C (48°F) at night. Quite a bit of rainfall is typical this month, with around 95 mm (3.7 in) on average. An umbrella is a good idea.

Rainfall in Merrimack in May

Rain is expected on roughly 14 days, totalling around 95 mm (3.7 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Merrimack in May

Weather in Merrimack is at its perfect in May. Highs reach 21°C (70°F), while nights settle around 9°C (48°F). The difference between afternoon and evening temperatures is usually noticeable. With overnight lows of 9°C (48°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Merrimack in May

The month enjoys around 258 hours of sunshine, creating mostly sunny days with good weather conditions.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Merrimack's climate page.

Merrimack Temperature in May

Min TemperatureMin Temperature 9°C (48°F)  
Max TemperatureMax Temperature 21°C (70°F)  
Chance of RainChance of Rain 47%  
PrecipitationPrecipitation 95 mm (3.7 in)  
Rainy daysRainy days 14 days  
HumidityHumidity 65% *  
SunshineSunshine 258 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Concord, the United States of America (38 KM, 23 Miles).

Best Places in the United States of America in May

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Merrimack in May

Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Merrimack in May

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling
9/10
Walking
9/10
Barbeque
8/10
Camping
4/10
Outdoor sports
9/10

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit the United States of America, check out our Merrimack's climate page.

More climate data for Merrimack