Juneau, Alaska, United States Climate

Weather: 13.39°C/56.1°F, Wind SW at 1.54 km/h, 100% Humidity, 0% Chance of rain

United States
(Photo by Brett Johnson on Unsplash)
Contents

Juneau Climate Summary

Located at an elevation of None meters (0 feet) above sea level, Juneau has a Subartic, severe winter, no dry season, cool summer climate (Classification: Dfc). The district’s yearly temperature is 1.44ºC (34.59ºF) and it is -11.2% lower than United States’s averages. Juneau typically receives about 118.51 millimeters (4.67 inches) of precipitation and has 67.18 rainy days (18.41% of the time) annually.

CountryUnited States
CityAlaska
Longitude-134.4197221
Latitude58.3019444
Attitude/ElevationNonem (0ft)
Local timeSunday 15:20
Annual high temperature4.37ºC (39.87ºF)
Annual low temperature-2.73ºC (27.09ºF)
Average annual precip.118.51mm (4.67in)
Warmest monthJuly (14.32ºC / 57.78ºF)
Coldest MonthJanuary (-12.81ºC / 8.94ºF)
Wettest MonthDecember (201.08mm / 7.92in)
Driest MonthJuly (63.38mm / 2.5in)
Number of days with rainfall (≥ 1.0 mm)67.18 days (18.41%)
Days with no rain297.82 days (81.59%)
Humidity85.27%

Climate Juneau: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)6.0(42.8)4.0(39.2)10.0(50.0)11.0(51.8)18.0(64.4)21.0(69.8)22.0(71.6)18.0(64.4)16.0(60.8)10.0(50.0)6.0(42.8)4.0(39.2)22.0(71.6)
Average high °C (°F)-6.26(20.73)-4.2(24.44)0.12(32.22)3.39(38.1)10.11(50.2)11.23(52.21)14.32(57.78)12.06(53.71)10.19(50.34)4.24(39.63)-0.81(30.54)-1.99(28.42)4.37(39.87)
Daily mean °C (°F)-9.1(15.62)-7.71(18.12)-3.81(25.14)0.19(32.34)7.0(44.6)8.47(47.25)11.23(52.21)9.11(48.4)6.82(44.28)1.85(35.33)-2.42(27.64)-4.35(24.17)1.44(34.59)
Average low °C (°F)-12.81(8.94)-11.87(10.63)-8.38(16.92)-4.22(24.4)1.68(35.02)3.44(38.19)6.27(43.29)4.94(40.89)2.7(36.86)-1.49(29.32)-5.5(22.1)-7.57(18.37)-2.73(27.09)
Record low °C (°F)-32.0(-25.6)-24.0(-11.2)-21.0(-5.8)-15.0(5.0)-7.0(19.4)-3.0(26.6)0.0(0)0.0(0)-6.0(21.2)-9.0(15.8)-17.0(1.4)-19.0(-2.2)-32.0(-25.6)
Average precipitation mm (inches)149.13(5.87)102.57(4.04)90.13(3.55)116.47(4.59)97.85(3.85)76.65(3.02)63.38(2.5)115.29(4.54)83.69(3.29)163.42(6.43)162.51(6.4)201.08(7.92)118.51(4.67)
Average precipitation days (≥ 1.0 mm)6.364.824.555.275.096.274.555.734.276.366.647.275.6
Average relative humidity (%)86.6183.682.4484.5281.1586.6385.7888.1679.9386.0687.790.6385.27
Mean monthly sunshine hours3.326.298.710.3714.3314.9414.9811.919.395.943.762.258.85

Climate Graph

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

Juneau

Juneau Temperature by Month

July
11.23°C | 52.21°F
August
9.11°C | 48.4°F
June
8.47°C | 47.25°F
May
7.0°C | 44.6°F
September
6.82°C | 44.28°F
October
1.85°C | 35.33°F
April
0.19°C | 32.34°F
November
-2.42°C | 27.64°F
March
-3.81°C | 25.14°F
December
-4.35°C | 24.17°F
February
-7.71°C | 18.12°F
January
-9.1°C | 15.62°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature6.0°C (42.8°F)-4.55°C (23.81°F)-16.0°C (3.2°F)
Avg Temperature1.0°C (33.8°F)-8.16°C (17.31°F)-22.0°C (-7.6°F)
Min Temperature-0.0°C (0°F)-10.9°C (12.38°F)-26.0°C (-14.8°F)
Dew PointMaxAverageMin
Dew Point1.0°C (33.8°F)-9.94°C (14.11°F)-25.0°C (-13.0°F)
PrecipitationMaxAverageMinSum
Precipitation60.5mm | 2.38in17.71mm | 0.7in0.0mm | 0in549.0mm | 21.61in
Snowdepth37.5mm | 1.48in7.43mm | 0.29in0.0mm | 0in230.30000000000004mm | 9.07in
WindMaxAverageMin
Wind17.0kmh | 10.56mph11.45kmh | 7.11mph6.0kmh | 3.73mph
Gust Wind30.0kmh | 18.64mph20.58kmh | 12.79mph10.0kmh | 6.21mph
Sea Level PressureMaxAverageMin
Sea Level Pressure60.5mb17.71mb0.0mb
Juneau

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
January° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2018-01-01-5 | 23.0-5 | 23.09712 | 7.4630.03 | 101755.5 | 2.19
2018-01-02-3 | 26.6-3 | 26.69612 | 7.4630.12 | 102060.5 | 2.38
2018-01-03-3 | 26.6-3 | 26.6979 | 5.5930.0 | 101646.3 | 1.82
2018-01-04-3 | 26.6-3 | 26.6959 | 5.5929.77 | 100851.7 | 2.04
2018-01-05-3 | 26.6-4 | 24.8959 | 5.5929.62 | 100341.6 | 1.64
2018-01-06-5 | 23.0-5 | 23.09611 | 6.8429.77 | 100844.1 | 1.74
2018-01-07-6 | 21.2-7 | 19.4917 | 4.3529.77 | 10084.6 | 0.18
2018-01-08-12 | 10.4-14 | 6.87912 | 7.4629.74 | 10070.0 | 0.0
2018-01-09-18 | -0.4-21 | -5.87715 | 9.3230.06 | 10182.4 | 0.09
2018-01-10-22 | -7.6-25 | -13.07413 | 8.0830.24 | 10240.6 | 0.02
2018-01-11-15 | 5.0-18 | -0.47711 | 6.8430.12 | 10200.6 | 0.02
2018-01-12-9 | 15.8-11 | 12.28411 | 6.8430.03 | 101715.1 | 0.59
2018-01-13-2 | 28.4-3 | 26.69611 | 6.8429.94 | 101452.9 | 2.08
2018-01-141 | 33.81 | 33.89513 | 8.0829.8 | 100936.6 | 1.44
2018-01-151 | 33.80 | 32.09312 | 7.4629.74 | 100717.4 | 0.69
2018-01-16-1 | 30.2-2 | 28.49210 | 6.2129.65 | 100421.3 | 0.84
2018-01-17-5 | 23.0-7 | 19.48810 | 6.2129.56 | 100110.1 | 0.4
2018-01-18-6 | 21.2-9 | 15.88110 | 6.2129.38 | 9950.3 | 0.01
2018-01-19-4 | 24.8-6 | 21.2866 | 3.7329.62 | 10031.8 | 0.07
2018-01-20-5 | 23.0-8 | 17.68310 | 6.2129.59 | 10020.8 | 0.03
2018-01-21-9 | 15.8-11 | 12.28210 | 6.2129.56 | 10013.4 | 0.13
2018-01-22-7 | 19.4-9 | 15.89010 | 6.2129.74 | 100719.2 | 0.76
2018-01-23-9 | 15.8-11 | 12.28711 | 6.8429.77 | 100813.9 | 0.55
2018-01-24-10 | 14.0-12 | 10.48413 | 8.0829.62 | 100312.8 | 0.5
2018-01-25-12 | 10.4-14 | 6.88113 | 8.0829.65 | 10040.2 | 0.01
2018-01-26-11 | 12.2-14 | 6.88214 | 8.729.94 | 10145.4 | 0.21
2018-01-27-13 | 8.6-16 | 3.27912 | 7.4630.27 | 10250.7 | 0.03
2018-01-28-13 | 8.6-16 | 3.28117 | 10.5630.09 | 10195.8 | 0.23
2018-01-29-13 | 8.6-15 | 5.08714 | 8.729.68 | 100518.7 | 0.74
2018-01-30-15 | 5.0-18 | -0.47914 | 8.729.77 | 10083.5 | 0.14
2018-01-31-16 | 3.2-19 | -2.27814 | 8.730.21 | 10231.2 | 0.05

Juneau 3 Year Historical Weather Data

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