March weather forecastMerrimack, NH
March
Weather in March
Eagerly awaiting the change of seasons, residents of Merrimack prepare for the shifts in weather as March approaches. With the arrival of spring, an increase in daylight hours can be observed. During this transition month, snowfall dips to 1.85" (47mm), indicating the receding winter. Unpredictable showers also begin to mark the commencement of spring. March's climate is a combination of melting snow, gradually warming temperatures, and a blooming landscape.Temperature
March's arrival coincides with a subtle temperature rise, moving from February's cold 33.3°F (0.7°C) to a still icy 41.2°F (5.1°C). An average low-temperature of 26.4°F (-3.1°C) marks the month of March.Humidity
In March, the average relative humidity in Merrimack is 79%.Rainfall
In Merrimack, during March, the rain falls for 8.3 days and regularly aggregates up to 1.18" (30mm) of precipitation. In Merrimack, during the entire year, the rain falls for 104.4 days and collects up to 12.95" (329mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In March, in Merrimack, it is snowing for 5.7 days. Throughout March, 1.85" (47mm) of snow is accumulated. In Merrimack, during the entire year, snow falls for 26.1 days and aggregates up to 11.54" (293mm) of snow.Daylight
The average length of the day in March in Merrimack is 11h and 58min.On the first day of March, sunrise is at 6:20 am and sunset at 5:35 pm EST. On the last day of the month, sunrise is at 6:28 am and sunset at 7:11 pm EDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from EDT to EST.
Sunshine
The average sunshine in March is 5.7h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Merrimack. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 2 in March suggests the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Merrimack, NH
- Average high temperature in March: 41.2°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in March: 26.4°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in March
Merrimack, NH
- Average pressure in March: 30.03"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in March
Merrimack, NH
- Average wind speed in March: 7.9mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in March
Merrimack, NH
- Average humidity in March: 79%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (72%).
Average rainfall in March
Merrimack, NH
- Average rainfall in March: 1.18"
The wettest month (with the highest rainfall) is October (1.38").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in March
Merrimack, NH
- Average rainfall days in March: 8.3 days
The month with the highest number of rainy days is June (12.1 days).
The month with the least rainy days is January (4.1 days).
Average snowfall in March
Merrimack, NH
- Average snowfall in March: 1.85"
The month with the highest snowfall is December (2.99").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in March
Merrimack, NH
- Average snowfall days in March: 5.7 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in March /
Average sunshine in March
Merrimack, NH
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in March: 5h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in March
Merrimack, NH
- Average sunshine days in March: 18.6 days
The months with the most sunshine days are January and December (21.3 days).
The month with the least sunshine days is June (16.7 days).
Average UV index in March
Merrimack, NH
- Average UV index in March: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in March
Merrimack, NH
- Average cloud cover in March: 51
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in March
Merrimack, NH
- Average visibility in March: 5mi
The months with the highest visibility are January, April, November and December (6mi).
The months with the lowest visibility are February, March, May, June, July, August, September and October (5mi).
