Climate Highlights and Other News

October 2017

Record High Temperature at Anchorage    

Record high temperatures were set on October 26 and 27 at the Anchorage International Airport. The high of 51°F (11°C) on October 26 broke the previous record of 47°F (8°C) set in 2003. The following day the high of 50°F (10°C) broke the previous record of 47°F (8°C) set in 2004. Climate observations have been made at the Anchorage International Airport since 1953. 

Damaging Winds in the Anchorage Area    

The weakening remnants of Typhoon Lan brought damaging winds to parts of Anchorage on October 26. Especially hard hit were the hillside and south Anchorage, where there was considerable property damage, and about 3000 people were without power at some time during the storm. Highest reported wind gusts included 85 mph at Glen Alps on the hillside and 87 mph near Potters March in south Anchorage. 

Heavy Snow in the Susitna Valley    

A moist storm spawned by the remnants of Typhoon Lan brought heavy snow to parts of the middle and upper Susitna Valley on October 24 and 25. Snowfall accumulations of 8 to 10 inches were reported in the Skwetna and Talkeetna areas before the snow changed to rain. Along the Parks Highway from near Hurricane Gulch to Broad Pass, the Alaska Department of Transportation reported up to 40" of new snow, causing major delays on the main road connection between Anchorage and Fairbanks.   

Heavy Snow at Iliamna    

Eight to ten inches of snow fell at Iliamna on October 23. While long term snowfall records are not available from Iliamna, this is an unusally large snowfall for this early in the season. 

Record October Precipitation at Fairbanks    

Fairbanks was drenched with summer-like rainfall from late on October 9 into the evening of October 10. Unlike summer, the precipitation started as snow before changing to sustained moderate rain. The Fairbanks Airport recorded a 24 hour total of 1.54" (39.1mm) of rain and melted snow. This far exceeds the previous October 24-hour record of 1.17" set October 29, 1946 and again October 10-11, 1986. Not only is this an October record, but it's also the second greatest 24 hour precipitation any time between early September and early June (non-summer season). 

September 2017

Labor Day Landslide in Sitka    

Sitka was soaked with 2.77" (70.4mm) on Labor Day, September 4, with most of that falling within 12 hours. Coming on the heals of a wet August, the rain caused a landslide along Halibut Point Road that cut off access to the Alaska State Ferry terminal and stranded people on either side of the slide for about eight hours. 

Near Record Alaska Heat in Southeast    

The high temperature at Hyder and Beaver Falls on September 5 of 84ºF (29ºC) came within one degree of the highest reliable temperature of record in Alaska in the month of September. The September record is 85ºF (29ºC) set on September 5, 1957 at Ft. Wainwright and the University Experimental Farm, both in the Fairbanks area. 

Record High Temperatures at Annette    

Annette set daily record high temperatures on consecutive days in early September. The high temperature on September 5 of 79°F (26°C) broke the previous record of 77°F (25°C) set in 1949. The following day the temperature topped out at 82°F (28°C), breaking the previous record of 78°F (26°C) set in 1993 and also ties the record high for the month of September (also 82°F on September 8, 1989). 

Alaska Center for Climate Assessment & Policy

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