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Greatest Amount of Snow in Three Days. The month with the most days of snow alone at Anchorage International Airport is December, with an average of 5.1 days. Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature.
Humidity is close to 86%.
MT. For reference, on July 20, the hottest day of the year, temperatures in Anchorage typically range from 55F to 68F, while on January 17, the coldest day of the year, they range from 13F to 23F.
The average surface water temperature in Anchorage is gradually decreasing during the winter, falling by 3F, from 35F to 32F, over the course of the season. Greatest Snowfall in One Season
The charts include values for the 2021-2022 season through February 24, as well as the long-term average and the season with the highest recorded values at each location. }
Click on the images to view the full size graphics. Ocean temperature In Anchorage, the average water temperature is 51.6F (10.9C). The estimated value at Anchorage is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Anchorage and a given station.
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