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Many weather-related myths surround Alaska's climate. One of
the most common is that summer temperatures in Alaska are cool.
In fact, like much of the United States, Alaska has four seasons
and weather records at both ends of the thermometer. Alaska's
summers are warm with highs that can reach into the 90°s. Ft.
Yukon holds the all-time record with a sizzling 100°F
temperature recorded in 1915. Many believe that the far northern
part of Alaska would be the coldest. Actually, the record for
Alaska (and the entire U.S. for that matter) was set in 1971 at
Prospect Creek in the northern interior: a bone-chilling -80°F!
When compared to high readings near 90°, Alaska's temperature
range is an astonishing 170°.
Alaska's wide range of climates can be divided into six
major zones. The southeast, which includes Juneau and the
southeast panhandle, experiences mild winters and cool rainy
summers, similar to a cooler version of Seattle. On an annual
basis, this is both the wettest and warmest part of Alaska with
milder temperatures in the winter and high precipitation
throughout the year. This is also the only region in Alaska in
which the average daytime high temperature is above freezing
during the winter months.
The climate in south central Alaska, with Anchorage as a typical
city, is mild by Alaskan standards. This is due in large part to
its proximity to the coast. While it does not get nearly as much
rain as the southeast of Alaska, it does get more snow, although
days tend to be clearer here. It is a subarctic climate due to its short, cool summers.
Summer temperatures can reach into the high 70s. Low humidity
also contributes to Anchorage's comfortable climate. There are frequent strong southeast winds, known as the Knik wind, in the vicinity of Palmer, especially in the winter months.
The climate of Western Alaska is determined largely by the
Bering Sea and the Gulf of Alaska. It is a subarctic oceanic
climate in the southwest and a continental subarctic climate
farther north. The temperature is somewhat moderate considering
how far north the area is. This area has a tremendous amount of
variety, especially when considering precipitation. The northern
side of the Seward Peninsula is technically a desert with less
than 10 inches (254 mm) of precipitation annually, while some
locations between Dillingham and Bethel average around 100
inches (2,540 mm) of precipitation. Shielded by mountains, the
region around Cook Inlet has longer colder winters and shorter
warmer summers than anywhere around the Gulf.
The Aleutian Islands have year round stormy blistery weather.
Expect lots of wind and rain when visiting the islands.
The coldest winter temperatures are found in Alaska's interior.
The climate of the interior of Alaska is best described as
extreme and is the best example of a true subarctic climate.
Some of the hottest and coldest temperatures in Alaska occur
around the area near Fairbanks Temperatures in Interior Alaska
usually get higher than in Anchorage or other coastal areas.
Fairbanks' average high is 70 degrees in June, 72 degrees in
July and 66 degrees in August. In the winter, the
temperature can fall below
−60 °F (−51.1 °C).
Aortic winters are not as cold those in the interior, but snow
can linger until July. The climate in the extreme north of
Alaska is what would be expected for an area north of the Arctic
Circle. It is an Arctic climate with long, very cold
winters and short, cool summers. Even in July, the average low
temperature is barely above freezing in Barrow, at
34 °F
(1.1 °C).
Whenever and wherever you travel in "The Great Land," clothing
is always a primary consideration. Emphasis should be based on
comfort because the dress code is informal and casual. A layered
technique is extremely good here.
Alaska is called the land of the
midnight sun. A common notion about Alaska is that the whole
state goes dark in the winter and has endless sunlight in the
summer. That's not quite the case. Barrow, at the very top of
the state, has a two-month winter period in which the sun
doesn't rise. But that's the extreme, and winter's long nights
get shorter the farther south you go. South of the Arctic
Circle, every place has sunlight at least part of the day.
In the summer, all of Arctic Alaska
gets 24-hour sunlight for at least one day at the solstice.
Barrow has continuous daylight for 85 days. South of the circle,
every town has a night every day, even if it's quite brief. Long
dawns and dusks can make the day appear longer than it actually
is. Even as far south as Anchorage, it's possible to read a
newspaper outdoors at 2 a.m. -- two hours after sunset -- in the
days around the summer solstice. This summer, solstice occurs at
3:28 a.m. Alaska Daylight Time on June 21. The winter solstice
occurs at 2:38 p.m. Alaska Standard Time on Dec. 21.
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