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July's rainfall in Ketchikan twice expected amount


August 08, 2011

(SitNews) Ketchikan, Alaska – Ketchikan's monthly precipitation in July was measured at 11.94 inches, nearly twice the expected amount. Remarkable was the precipitation recorded on July 1. A whopping 3.69 inches set a new record for the date. The precipitation surpasses the old record by about one-third, which was set in 1917 at 2.49 inches.

jpg July's rainfall in Ketchikan twice expected amount


In July, Ketchikan’s average temperature of 56.8 degrees Fahrenheit was 0.9 degrees below the long-term mean. The highest temperature of the month, 77 degrees, occurred July 12. The month’s low temperature of 46 degrees occurred July 21. While the mean monthly temperature was somewhat below the expected value, the daily values followed fairly close to the long-term mean. No new temperature records were observed.

Around the state, July temperatures were below normal for most of Alaska. The largest negative deviations were observed for Nome (minus 4 degrees Fahrenheit) and King Salmon (minus 3.7 degrees Fahrenheit), while Barrow reported a large positive deviation (1.5 degrees Fahrenheit).

Precipitation for Juneau, Anchorage and Fairbanks was wetter than normal. Both Ketchikan and Nome reported precipitation totals near twice their normal values. However, Alaska as a whole was near average, with about as many stations reporting above average precipitation as reporting below average values.


Related Data:

July 2011 - Ketchikan Extremes




Source of News: 

Preliminary climatological data compiled by the Alaska Climate Research Center, Geophysical Institute, University of Alaska Fairbanks.


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