CLIMATE CHARTS

Port San Juan, Alaska

Latitude: 60.0503 Longitude: -148.0672

Elevation: 40 feet (12.2 meters)

Port San Juan, Alaska Temperature Chart Daily average maximum and minimum temperatures for Port San Juan, Alaska Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec High & Low Temperature °F  °C -30 -34.4 -20 -28.9 -10 -23.3 0 -17.8 10 -12.2 20 -6.7 30 -1.1 40 4.4 50 10.0 60 15.6 70 21.1 80 26.7 90 32.2 100 37.8 110 43.3 Port San Juan, Alaska Precipitation Chart Precipitation chart for Port San Juan, Alaska Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Precipitation In. Cm. 0.00 0.00 0.10 0.25 0.20 0.51 0.30 0.76 0.40 1.02 0.50 1.27 0.60 1.52 0.70 1.78 0.80 2.03 0.90 2.29 1.00 2.54 Daylight Chart for PORT SAN JUAN, AK Daylight chart for PORT SAN JUAN, AK. Latitude 60.1. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Sunrise/Sunset Daylight NOON NOON 0 0 2 2 4 4 6 6 8 8 10 10 12 12 14 2 16 4 18 6 20 8 22 10 24 12

Monthly Data Table for Port San Juan, Alaska

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 34.5 34.6 37.0 42.6 51.4 58.6 61.8 60.9 54.0 45.0 37.6 35.9
Minimum Temperature °F 26.8 26.5 27.9 32.1 37.6 44.6 49.9 49.7 43.8 35.6 29.5 27.8
Heating Degree Days °F 1065 965 1009 829 635 402 284 301 483 766 943 1028
Cooling Degree Days °F 0 0 0 0 0 0 0 0 0 0 0 0
Precipitation in. 13.24 10.91 9.30 9.93 6.92 4.75 5.24 8.95 15.47 17.68 13.19 15.65

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 1.4 1.4 2.8 5.9 10.8 14.8 16.6 16.1 12.2 7.2 3.1 2.2
Minimum Temperature °C -2.9 -3.1 -2.3 0.1 3.1 7.0 9.9 9.8 6.6 2.0 -1.4 -2.3
Heating Degree Days °C 592 536 561 461 353 223 158 167 268 426 524 571
Cooling Degree Days °C 0 0 0 0 0 0 0 0 0 0 0 0
Precipitation cm. 33.63 27.71 23.62 25.22 17.58 12.06 13.31 22.73 39.29 44.91 33.50 39.75
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