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Climate & Temperature > Usa > Juneau, Alaska Climate
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Climate of Juneau, Alaska, Usa Average Weather

Juneau, Alaska Climate Graph
  • Juneau, Alaska, Usa is at 58°22'N, 134°35'W, 7 m (23 ft). See map.
  • Juneau, Alaska has a subarctic climate that has severe winters, no dry season, with cool, short summers and strong seasonality (Köppen-Geiger classification: Dfc).
  • According to the Holdridge life zones system of bioclimatic classification Juneau, Alaska is situated in or near the boreal rain forest biome.
  • The annual mean temperature is 4.8 degrees Celsius (40.6 degrees Fahrenheit). See the temperatures page for a monthly breakdown and the fixed scale graph.
  • Average monthly temperatures vary by 17.6 °C (31.7°F). This indicates that the continentality type is oceanic, subtype truly oceanic.
  • In the winter time records indicate temperatures by day reach -0.1°C (31.8°F) on average falling to -5.9°C (21.4°F) overnight.
  • In spring time temperatures climb reaching 8.3°C (46.9°F) generally in the afternoon with overnight lows of 0.3°C (32.6°F).
  • During summer average high temperatures are 17°C (62.5°F) and average low temperatures are 8.2°C (46.8°F).
  • Come autumn/ fall temperatures decrease achieving average highs of 8.1°C (46.6°F) during the day and lows of 2.1°C (35.8°F) generally shortly after sunrise.
  • Total annual Precipitation averages 1379.5 mm (54.3 inches) which is equivalent to 1379.5 Litres/m² (33.84 Gallons/ft²).
  • If you were to burrow down through the Earth from Juneau, Alaska you would come out nearest to the climate station at Marion Island, South Africa.

Table

The climate table uses colour to represent the data so you can get a good idea about the climate at a glance. The colour also helps when comparing two or more locations that you can switch between in separate tabs in your browser. There are links along the side and top to the various sections where we are adding additional details including in the new discussion section where you can read and add posts about the various aspects!

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) -1 (29) 1 (34) 4 (39) 8 (47) 13 (55) 16 (61) 18 (64) 17 (63) 13 (56) 8 (47) 3 (37) 0 (32) 8 (47)
average temperature iconAverage Temperature °C ( °F) -4 (24) -2 (28) 0 (33) 4 (40) 8 (47) 12 (53) 13 (56) 13 (55) 10 (49) 6 (42) 0 (32) -3 (27) 5 (41)
minimum temperature iconAverage Min Temperature °C ( °F) -7 (19) -5 (23) -3 (27) 0 (32) 4 (39) 7 (45) 9 (48) 9 (47) 6 (43) 3 (37) -3 (27) -5 (23) 1 (34)
rainfall iconAverage Precipitation mm (in) 115 (5) 95 (4) 83 (3) 70 (3) 87 (3) 80 (3) 106 (4) 135 (5) 171 (7) 199 (8) 125 (5) 113 (4) 1380 (54)
rain days iconNumber of Wet Days (probability of rain on a day) 18 (58%) 17 (60%) 18 (58%) 17 (57%) 18 (58%) 15 (50%) 17 (55%) 18 (58%) 20 (67%) 23 (74%) 20 (67%) 21 (68%)   222 (61%)
daylight iconAverage Daylight Hours & Minutes/ Day 07:14 09:18 11:48 14:26 16:49 18:11 17:33 15:25 12:49 10:11 07:49 06:31   12:00

Climate of Juneau, Alaska, Usa Discussion

We are pleased to announce the release of the new discussion section. Here you will discover a wealth of knowledge about the various aspects of the local climate presented by our international community. We would like to invite you to help get discussion started by visiting those locations you are familiar with. Is there something noteworthy about the climate there that you can enlighten us about? Discussion is subdivided into specific topics such as the months of the year and aspects such as day length and temperature. When you have an idea of something fascinating to share please visit the specific page most fitting and add your post using the simple interface. No registration or third party network login is necessary.

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