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Weather & Climate

Halloween Weather Extremes

Weather conditions on Halloweens past across Alaska have covered a wide range: from mild to bitter cold, dry to rainy (or snowy).  Below is a table showing the warmest and coldest recorded temperatures, as well as the highest precipitation (liquid equivalent) and snowfall totals for October 31st at 19 first-order weather stations.   Table. Records of …

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First Snowfall Date

With winter fast approaching, one commonly asked question we get is “What is the average date of the first snowfall of the season?”  The answer is that it depends on the location.  The table below shows the mean date of the first snowfall at 19 first-order weather stations, as well as the earliest and latest …

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Denali – Mountain Weather and Climate

The world’s 3rd most prominent and 3rd most isolated mountain, Denali, in the Alaska Range, has attracted climbers since the early 20th century. Denali is known to “create its own weather” – this is due to its geographic isolation and large elevation difference between the base and summit, which affects atmospheric flow at the micro- and mesoscales. The …

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