Alton, New Hampshire, United States Climate

Weather: 8.68°C/47.62°F, Wind SW at 2.83 km/h, 94% Humidity, 0% Chance of rain

(Photo by B.W. Ruhl on Unsplash)
Contents

Alton Climate Summary

Located at an elevation of None meters (0 feet) above sea level, Alton has a Humid continental, no dry season, warm summer climate (Classification: Dfb). The district’s yearly temperature is 8.92ºC (48.06ºF) and it is -3.72% lower than United States’s averages. Alton typically receives about 36.71 millimeters (1.45 inches) of precipitation and has 39.63 rainy days (10.86% of the time) annually.

CountryUnited States
CityNew Hampshire
Longitude-71.2189721
Latitude43.4543228
Attitude/ElevationNonem (0ft)
Local timeTuesday 18:28
Annual high temperature12.32ºC (54.18ºF)
Annual low temperature2.42ºC (36.36ºF)
Average annual precip.36.71mm (1.45in)
Warmest monthJuly (28.01ºC / 82.42ºF)
Coldest MonthJanuary (-10.01ºC / 13.98ºF)
Wettest MonthApril (52.09mm / 2.05in)
Driest MonthSeptember (24.61mm / 0.97in)
Number of days with rainfall (≥ 1.0 mm)39.63 days (10.86%)
Days with no rain325.37 days (89.14%)
Humidity77.3%

Climate Alton: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)14.0(57.2)17.0(62.6)15.0(59.0)22.0(71.6)31.0(87.8)33.0(91.4)34.0(93.2)34.0(93.2)32.0(89.6)27.0(80.6)19.0(66.2)14.0(57.2)34.0(93.2)
Average high °C (°F)-2.14(28.15)-0.05(31.91)3.7(38.66)9.39(48.9)18.25(64.85)23.57(74.43)28.01(82.42)26.32(79.38)22.04(71.67)13.13(55.63)4.89(40.8)0.75(33.35)12.32(54.18)
Daily mean °C (°F)-5.03(22.95)-2.98(26.64)0.58(33.04)6.11(43.0)14.44(57.99)19.87(67.77)24.08(75.34)22.23(72.01)17.73(63.91)9.66(49.39)2.1(35.78)-1.8(28.76)8.92(48.06)
Average low °C (°F)-10.01(13.98)-8.54(16.63)-5.02(22.96)-0.27(31.51)6.15(43.07)10.82(51.48)15.54(59.97)14.26(57.67)10.36(50.65)4.28(39.7)-2.5(27.5)-5.98(21.24)2.42(36.36)
Record low °C (°F)-25.0(-13.0)-21.0(-5.8)-18.0(-0.4)-7.0(19.4)-3.0(26.6)3.0(37.4)9.0(48.2)7.0(44.6)1.0(33.8)-4.0(24.8)-18.0(-0.4)-15.0(5.0)-25.0(-13.0)
Average precipitation mm (inches)35.57(1.4)35.22(1.39)33.53(1.32)52.09(2.05)29.13(1.15)32.95(1.3)31.85(1.25)35.75(1.41)24.61(0.97)37.82(1.49)47.56(1.87)44.48(1.75)36.71(1.45)
Average precipitation days (≥ 1.0 mm)2.823.363.184.363.273.643.643.362.03.913.362.733.3
Average relative humidity (%)80.8282.5180.6174.8272.3273.4274.8675.3275.6279.9279.9177.4377.3
Mean monthly sunshine hours6.478.298.5410.0512.4813.013.2612.4810.217.816.546.579.64

Climate Graph

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

Alton Temperature by Month

July
24.08°C | 75.34°F
August
22.23°C | 72.01°F
June
19.87°C | 67.77°F
September
17.73°C | 63.91°F
May
14.44°C | 57.99°F
October
9.66°C | 49.39°F
April
6.11°C | 43.0°F
November
2.1°C | 35.78°F
March
0.58°C | 33.04°F
December
-1.8°C | 28.76°F
February
-2.98°C | 26.64°F
January
-5.03°C | 22.95°F

Historical Data

Summary
Go
TemperatureMaxAverageMin
Max Temperature31.0°C (87.8°F)16.87°C (62.37°F)6.0°C (42.8°F)
Avg Temperature26.0°C (78.8°F)13.26°C (55.87°F)3.0°C (37.4°F)
Min Temperature19.0°C (66.2°F)5.74°C (42.33°F)-3.0°C (26.6°F)
Dew PointMaxAverageMin
Dew Point18.0°C (64.4°F)5.16°C (41.29°F)-4.0°C (24.8°F)
PrecipitationMaxAverageMinSum
Precipitation23.4mm | 0.92in2.77mm | 0.11in0.0mm | 0in86.0mm | 3.39in
Snowdepth5.2mm | 0.2in0.17mm | 0.01in0.0mm | 0in5.2mm | 0.2in
WindMaxAverageMin
Wind22.0kmh | 13.67mph10.94kmh | 6.8mph5.0kmh | 3.11mph
Gust Wind32.0kmh | 19.88mph15.74kmh | 9.78mph7.0kmh | 4.35mph
Sea Level PressureMaxAverageMin
Sea Level Pressure23.4mb2.77mb0.0mb

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
May° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2020-05-0110 | 50.09 | 48.2999 | 5.5929.83 | 101018.2 | 0.72
2020-05-0211 | 51.83 | 37.46914 | 8.729.74 | 10070.4 | 0.02
2020-05-0315 | 59.07 | 44.6739 | 5.5929.68 | 10055.7 | 0.22
2020-05-0410 | 50.05 | 41.07616 | 9.9429.56 | 10010.5 | 0.02
2020-05-058 | 46.40 | 32.06415 | 9.3229.74 | 10070.0 | 0.0
2020-05-0611 | 51.8-0 | 32.0656 | 3.7329.83 | 10100.0 | 0.0
2020-05-079 | 48.21 | 33.8716 | 3.7329.68 | 10052.1 | 0.08
2020-05-087 | 44.6-3 | 26.65718 | 11.1829.62 | 10030.5 | 0.02
2020-05-093 | 37.4-2 | 28.47316 | 9.9429.44 | 99710.0 | 0.39
2020-05-106 | 42.8-2 | 28.46522 | 13.6729.77 | 10080.2 | 0.01
2020-05-119 | 48.25 | 41.0908 | 4.9729.74 | 100717.8 | 0.7
2020-05-126 | 42.8-3 | 26.66616 | 9.9429.83 | 10100.3 | 0.01
2020-05-137 | 44.6-4 | 24.86016 | 9.9430.09 | 10190.0 | 0.0
2020-05-1411 | 51.8-2 | 28.45410 | 6.2130.21 | 10230.0 | 0.0
2020-05-158 | 46.46 | 42.8915 | 3.1129.88 | 101223.4 | 0.92
2020-05-1612 | 53.68 | 46.4887 | 4.3529.94 | 10142.1 | 0.08
2020-05-1714 | 57.26 | 42.8737 | 4.3530.27 | 10250.0 | 0.0
2020-05-1816 | 60.88 | 46.4695 | 3.1130.21 | 10230.3 | 0.01
2020-05-1912 | 53.63 | 37.46511 | 6.8430.33 | 10270.0 | 0.0
2020-05-2015 | 59.04 | 39.2656 | 3.7330.45 | 10310.0 | 0.0
2020-05-2118 | 64.46 | 42.8599 | 5.5930.3 | 10260.0 | 0.0
2020-05-2220 | 68.07 | 44.65610 | 6.2130.09 | 10190.0 | 0.0
2020-05-2315 | 59.05 | 41.06111 | 6.8430.09 | 10190.0 | 0.0
2020-05-2413 | 55.42 | 35.6637 | 4.3530.3 | 10260.0 | 0.0
2020-05-2514 | 57.27 | 44.6786 | 3.7330.24 | 10240.0 | 0.0
2020-05-2623 | 73.415 | 59.0797 | 4.3530.18 | 10220.0 | 0.0
2020-05-2726 | 78.817 | 62.6739 | 5.5930.15 | 10210.0 | 0.0
2020-05-2822 | 71.616 | 60.87814 | 8.730.12 | 10200.1 | 0.0
2020-05-2924 | 75.218 | 64.47917 | 10.5629.94 | 10140.2 | 0.01
2020-05-3022 | 71.615 | 59.07512 | 7.4629.77 | 10084.2 | 0.17
2020-05-3114 | 57.23 | 37.45715 | 9.3229.91 | 10130.0 | 0.0

Alton 3 Year Historical Weather Data

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