June weather forecastMerrimack, NH
June
Weather in June
June brings the onset of summer to Merrimack, with fluctuations in temperature and humidity levels that are higher than the yearly average. Longer hours of daylight and increased sunshine enable outdoor enthusiasts to plan events and activities. The change in environment also influences the urban temperature distribution, making the town's ambience even more vibrant. Pleasant walks in the evening become a fascination for the residents as the city's charming landscapes flourish. Coupled with the longest sunlight hours, it's one of Merrimack's most enjoyable months.Temperature
With the transition into June, Merrimack experiences a subtle uplift in average high-temperatures, adjusting from a comfortable 66.9°F (19.4°C) in May to a moderately hot 74.5°F (23.6°C). Merrimack records an average low-temperature of 54.5°F (12.5°C) throughout the month of June.Humidity
In Merrimack, the average relative humidity in June is 75%.Rainfall
In Merrimack, New Hampshire, in June, during 12.1 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. Throughout the year, in Merrimack, New Hampshire, there are 104.4 rainfall days, and 12.95" (329mm) of precipitation is accumulated.Snowfall
In Merrimack, snow does not fall in June through September.Daylight
With an average of 15h and 18min of daylight, June has the longest days of the year in Merrimack.On the first day of June in Merrimack, sunrise is at 5:09 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:11 am and sunset at 8:28 pm EDT.
Sunshine
In Merrimack, the average sunshine in June is 9h.UV index
The months with the highest UV index in Merrimack are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 6 in June translates into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Merrimack, NH
- Average high temperature in June: 74.5°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 June: 54.5°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 June
Merrimack, NH
- Average pressure in June: 29.92"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 June
Merrimack, NH
- Average wind speed in June: 5.7mph
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 June
Merrimack, NH
- Average humidity in June: 75%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (72%).
Average rainfall in June
Merrimack, NH
- Average rainfall in June: 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 June
Merrimack, NH
- Average rainfall days in June: 12.1 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 June
Merrimack, NH
- Average snowfall in June: 0"
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 June
Merrimack, NH
- Average snowfall days in June: 0 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 June /
Average sunshine in June
Merrimack, NH
- Average daylight in June: 15h and 18min
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 June: 9h and 0min
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 June
Merrimack, NH
- Average sunshine days in June: 16.7 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 June
Merrimack, NH
- Average UV index in June: 6
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 June
Merrimack, NH
- Average cloud cover in June: 43
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 June
Merrimack, NH
- Average visibility in June: 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).
