Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
With the beginning of April, Merrimac's average high-temperature sees an increase, transitioning from a wintry 41.9°F (5.5°C) in March to a fresh 54.5°F (12.5°C). Merrimac throughout April, experiences an average nighttime temperature of 38.8°F (3.8°C).Humidity
With an average relative humidity of 71%, April is the least humid month in Merrimac.Rainfall
In Merrimac, during April, the rain falls for 8.7 days and regularly aggregates up to 0.55" (14mm) of precipitation. In Merrimac, during the entire year, the rain falls for 78.3 days and collects up to 5.43" (138mm) of precipitation.Snowfall
January through May, November and December are months with snowfall in Merrimac. In Merrimac, in April, during 0.8 snowfall days, 0.2" (5mm) of snow is typically accumulated. Throughout the year, in Merrimac, there are 17.2 snowfall days, and 2.6" (66mm) of snow is accumulated.Daylight
In Merrimac, the average length of the day in April is 13h and 25min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:10 pm. On the last day of April, in Merrimac, sunrise is at 5:38 am and sunset at 7:43 pm EDT.
Sunshine
In Merrimac, Massachusetts, the average sunshine in April is 8.2h.UV index
In Merrimac, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In April, the maximum UV index of 3 translates into these guidelines:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the temperature in April in Merrimac?
What is the least humid month in Merrimac?
What is the average humidity in April in Merrimac?
How many days does it rain in April in Merrimac?
How many days does it snow in April in Merrimac?
How many hours of daylight does Merrimac have in April?
What time are sunrise and sunset in April in Merrimac?
How long on average sun shines in April in Merrimac?
What is the UV index reading in April in Merrimac?
Average temperature in April
Merrimac, MA
- Average high temperature in April: 54.5°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in April: 38.8°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in April
Merrimac, MA
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Merrimac, MA
- Average wind speed in April: 8.2mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in April
Merrimac, MA
- Average humidity in April: 71%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in April
Merrimac, MA
- Average rainfall in April: 0.55"
The wettest month (with the highest rainfall) is November (0.67").
The driest month (with the least rainfall) is September (0.2").
Average rainfall days in April
Merrimac, MA
- Average rainfall days in April: 8.7 days
The month with the highest number of rainy days is July (8.8 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in April
Merrimac, MA
- Average snowfall in April: 0.2"
The month with the highest snowfall is December (0.71").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in April
Merrimac, MA
- Average snowfall days in April: 0.8 days
The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Merrimac, MA
- Average daylight in April: 13h and 2min
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 April: 8h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in April
Merrimac, MA
- Average sunshine days in April: 18.4 days
The month with the most sunshine days is January (24.5 days).
The month with the least sunshine days is April (18.4 days).
Average UV index in April
Merrimac, MA
- Average UV index in April: 3
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 April
Merrimac, MA
- Average cloud cover in April: 47
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in April
Merrimac, MA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Merrimac, Massachusetts, USA
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