Merrimack, New Hampshire, United States Climate

Weather: 12.54°C/54.57°F, Wind SW at 0.45 km/h, 51% Humidity, 0% Chance of rain

United States
(Photo by David Groves on Unsplash)
Contents

Merrimack Climate Summary

Located at an elevation of None meters (0 feet) above sea level, Merrimack has a Humid continental, no dry season, warm summer climate (Classification: Dfb). The district’s yearly temperature is 11.12ºC (52.02ºF) and it is -1.52% lower than United States’s averages. Merrimack typically receives about 21.73 millimeters (0.86 inches) of precipitation and has 34.62 rainy days (9.48% of the time) annually.

CountryUnited States
CityNew Hampshire
Longitude-71.4948322
Latitude42.8678693
Attitude/ElevationNonem (0ft)
Local timeSaturday 15:47
Annual high temperature14.45ºC (58.01ºF)
Annual low temperature5.12ºC (41.22ºF)
Average annual precip.21.73mm (0.86in)
Warmest monthJuly (29.85ºC / 85.73ºF)
Coldest MonthJanuary (-6.71ºC / 19.92ºF)
Wettest MonthAugust (30.1mm / 1.19in)
Driest MonthJanuary (14.97mm / 0.59in)
Number of days with rainfall (≥ 1.0 mm)34.62 days (9.48%)
Days with no rain330.38 days (90.52%)
Humidity72.95%

Climate Merrimack: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)16.0(60.8)21.0(69.8)19.0(66.2)24.0(75.2)32.0(89.6)35.0(95.0)39.0(102.2)36.0(96.8)35.0(95.0)29.0(84.2)20.0(68.0)16.0(60.8)39.0(102.2)
Average high °C (°F)0.49(32.88)2.87(37.17)6.04(42.87)11.38(52.48)19.88(67.78)25.13(77.23)29.85(85.73)28.06(82.51)23.88(74.98)15.48(59.86)7.38(45.28)2.92(37.26)14.45(58.01)
Daily mean °C (°F)-2.28(27.9)0.01(32.02)2.94(37.29)8.19(46.74)16.13(61.03)21.66(70.99)25.96(78.73)24.12(75.42)19.73(67.51)12.01(53.62)4.59(40.26)0.33(32.59)11.12(52.02)
Average low °C (°F)-6.71(19.92)-4.99(23.02)-2.33(27.81)2.46(36.43)8.67(47.61)13.54(56.37)18.1(64.58)16.83(62.29)12.92(55.26)6.77(44.19)0.01(32.02)-3.78(25.2)5.12(41.22)
Record low °C (°F)-22.0(-7.6)-18.0(-0.4)-14.0(6.8)-4.0(24.8)1.0(33.8)6.0(42.8)13.0(55.4)10.0(50.0)3.0(37.4)-5.0(23.0)-15.0(5.0)-13.0(8.6)-22.0(-7.6)
Average precipitation mm (inches)14.97(0.59)17.34(0.68)20.91(0.82)22.41(0.88)19.48(0.77)18.05(0.71)28.43(1.12)30.1(1.19)20.02(0.79)21.64(0.85)22.89(0.9)24.52(0.97)21.73(0.86)
Average precipitation days (≥ 1.0 mm)2.182.912.733.273.03.453.183.272.182.913.092.452.89
Average relative humidity (%)72.9775.3673.8770.1469.7770.171.1372.5572.876.3575.5274.8972.95
Mean monthly sunshine hours6.588.498.7210.112.5813.2313.4612.5610.118.026.496.799.76

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Merrimack in recent years.

Merrimack

Merrimack Temperature by Month

July
25.96°C | 78.73°F
August
24.12°C | 75.42°F
June
21.66°C | 70.99°F
September
19.73°C | 67.51°F
May
16.13°C | 61.03°F
October
12.01°C | 53.62°F
April
8.19°C | 46.74°F
November
4.59°C | 40.26°F
March
2.94°C | 37.29°F
December
0.33°C | 32.59°F
February
0.01°C | 32.02°F
January
-2.28°C | 27.9°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature29.0°C (84.2°F)18.61°C (65.5°F)8.0°C (46.4°F)
Avg Temperature24.0°C (75.2°F)14.77°C (58.59°F)6.0°C (42.8°F)
Min Temperature16.0°C (60.8°F)7.77°C (45.99°F)4.0°C (39.2°F)
Dew PointMaxAverageMin
Dew Point17.0°C (62.6°F)7.35°C (45.23°F)-0.0°C (0°F)
PrecipitationMaxAverageMinSum
Precipitation12.0mm | 0.47in2.2mm | 0.09in0.0mm | 0in68.2mm | 2.69in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind19.0kmh | 11.81mph9.81kmh | 6.1mph3.0kmh | 1.86mph
Gust Wind27.0kmh | 16.78mph14.48kmh | 9.0mph5.0kmh | 3.11mph
Sea Level PressureMaxAverageMin
Sea Level Pressure12.0mb2.2mb0.0mb
Merrimack

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
May° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2019-05-019 | 48.21 | 33.8645 | 3.1130.39 | 10290.1 | 0.0
2019-05-027 | 44.66 | 42.8947 | 4.3530.18 | 102212.0 | 0.47
2019-05-0310 | 50.07 | 44.6917 | 4.3530.09 | 10192.0 | 0.08
2019-05-0415 | 59.010 | 50.0863 | 1.8629.91 | 10131.4 | 0.06
2019-05-0510 | 50.09 | 48.2936 | 3.7329.91 | 10134.8 | 0.19
2019-05-0614 | 57.26 | 42.8739 | 5.5930.0 | 10160.3 | 0.01
2019-05-0717 | 62.69 | 48.27410 | 6.2130.12 | 10203.9 | 0.15
2019-05-0814 | 57.22 | 35.66012 | 7.4630.24 | 10240.3 | 0.01
2019-05-0913 | 55.4-0 | 32.0507 | 4.3530.33 | 10270.0 | 0.0
2019-05-1013 | 55.48 | 46.47913 | 8.0830.06 | 10181.8 | 0.07
2019-05-1114 | 57.24 | 39.26214 | 8.729.97 | 10150.0 | 0.0
2019-05-128 | 46.44 | 39.2786 | 3.7330.03 | 10175.2 | 0.2
2019-05-1310 | 50.04 | 39.27814 | 8.729.94 | 10148.5 | 0.33
2019-05-146 | 42.84 | 39.28911 | 6.8429.85 | 10111.9 | 0.07
2019-05-1511 | 51.84 | 39.27111 | 6.8429.8 | 10090.6 | 0.02
2019-05-1616 | 60.87 | 44.6676 | 3.7329.83 | 10100.4 | 0.02
2019-05-1714 | 57.211 | 51.8895 | 3.1129.77 | 10086.9 | 0.27
2019-05-1817 | 62.67 | 44.66515 | 9.3229.94 | 10140.0 | 0.0
2019-05-1921 | 69.812 | 53.6759 | 5.5930.0 | 10163.4 | 0.13
2019-05-2024 | 75.217 | 62.67816 | 9.9429.74 | 10074.3 | 0.17
2019-05-2114 | 57.24 | 39.25719 | 11.8129.83 | 10100.2 | 0.01
2019-05-2217 | 62.64 | 39.25413 | 8.0830.18 | 10220.0 | 0.0
2019-05-2318 | 64.410 | 50.0719 | 5.5930.03 | 10170.9 | 0.04
2019-05-2417 | 62.610 | 50.07018 | 11.1829.85 | 10110.0 | 0.0
2019-05-2521 | 69.88 | 46.4618 | 4.9730.12 | 10200.1 | 0.0
2019-05-2624 | 75.213 | 55.46715 | 9.3229.85 | 10111.7 | 0.07
2019-05-2721 | 69.810 | 50.0627 | 4.3529.91 | 10130.0 | 0.0
2019-05-2810 | 50.06 | 42.8818 | 4.9729.94 | 10144.9 | 0.19
2019-05-2915 | 59.08 | 46.4788 | 4.9729.77 | 10080.6 | 0.02
2019-05-3017 | 62.611 | 51.8804 | 2.4929.74 | 10070.6 | 0.02
2019-05-3121 | 69.812 | 53.6729 | 5.5929.74 | 10071.4 | 0.06

Merrimack 3 Year Historical Weather Data

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