Climate Highlights and Other News

October 2017

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). 

Record High Temperature at Bettles    

The temperature at Bettles topped out at 66°F (19°C) on September 17. This is the highest temperature of record for this date, just nipping the previous record of 65°F (18°C) set in 1973. Climate observations have been made in the Bettles area since the mid-1940s. 

Warmest Late Season Low Temperature at Anchorage    

The low temperature at Anchorage International Airport on September 13 was 55°F (13°C). This is not only the warmest low temperature for the date but also the latest in the season Anchorage has had a low this mild. The previous latest date with a low of 55°F or higher was September 12, 2016. Prior to 2016, the latest date was September 6, 1993.  

August 2017

Record Wet Summer at Ketchikan    

Ketchikan was soaked with almost four feet of rain during the summer. A total of 46.99" (1194mm) of rain fell June through August. This is more than twice normal and exceeds the previous record wet summer of 1967 by more than three inches. 

Alaska Center for Climate Assessment & Policy

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ACCAP is a NOAA Climate Program Office Climate & Societal Interactions RISA Program.

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