Английская Википедия:Climate of Anchorage

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Файл:Monthly Climate Normals (1991-2020) - Anchorage Area, AK(ThreadEx).svg

Climate chart for Anchorage

Anchorage, Alaska (Dena'ina: Dgheyay Kaq'; Dgheyaytnu) has a subarctic climate with the code Dfc according to the Köppen climate classification due to its short, cool summers. The weather on any given day is very unpredictable. Some winters feature several feet of snow and cold temperatures, while the summers are typically mild but are cool compared to the contiguous US and interior Alaska. Because of Anchorage's high latitude, summer days are very long and winter daylight hours are very short. The longest day of sunlight being 18hrs and 21 minutes, and shortest being 5 hours and 28 minutes. Anchorage is often cloudy during the winter, which decreases the amount of sunlight experienced by residents.

Temperature

Averages

Файл:South Fork Eagle River, Alaska.jpg

Autumn in Eagle River AK

Average daytime summer temperatures range from approximately 55 to 78 °F (12.8 to 25.6 °C); average daytime winter temperatures are about 5 to 30 °F (−15.0 to −1.1 °C). Anchorage has a frost-free growing season that averages slightly over one hundred days. Average January low and high temperatures at Ted Stevens Anchorage International Airport (PANC) are 11 / 23 °F (−11.7 / −5.0 °C) with an average winter snowfall of 75.59 inches, or 1.92 meters. Farther afield at the Campbell Airstrip is another weather station recording colder night temperatures in both summer and winter.

Average July low and high temperatures are 52 / 66 °F (11.1 / 18.9 °C) and the hottest reading ever recorded was 90 °F or 32.2 °C on July 4, 2019.

Highest daily temperatures

Period	Record temperature	Date
Шаблон:Date table sorting	Шаблон:Convert	January 27, 2014 January 19, 1961
Шаблон:Date table sorting	Шаблон:Convert	Feb 27, 2014
Шаблон:Date table sorting	Шаблон:Convert	Mar 31, 2016
Шаблон:Date table sorting	Шаблон:Convert	Apr 29, 2005
Шаблон:Date table sorting	Шаблон:Convert	May 21, 2002 May 24, 1969
Шаблон:Date table sorting	Шаблон:Convert	Jun 14, 1969
Шаблон:Date table sorting	Шаблон:Convert	Jul 4, 2019
Шаблон:Date table sorting	Шаблон:Convert	Aug 2, 1978 Aug 21, 1977 Aug 6, 1968
Шаблон:Date table sorting	Шаблон:Convert	Sep 5, 1957
Шаблон:Date table sorting	Шаблон:Convert	Oct 9, 2006
Шаблон:Date table sorting	Шаблон:Convert	Nov 26, 2002
Шаблон:Date table sorting	Шаблон:Convert	Dec 9, 2019

Daily record warm minima

Period	Record temperature	Date
Шаблон:Date table sorting	Шаблон:Convert	Jan 20, 1990
Шаблон:Date table sorting	Шаблон:Convert	Feb 25, 1978
Шаблон:Date table sorting	Шаблон:Convert	Mar 26, 1970
Шаблон:Date table sorting	Шаблон:Convert	Apr 27, 2015 Apr 29, 2005
Шаблон:Date table sorting	Шаблон:Convert	May 31, 1993
Шаблон:Date table sorting	Шаблон:Convert	Jun 16, 2015
Шаблон:Date table sorting	Шаблон:Convert	Jul 10, 2005
Шаблон:Date table sorting	Шаблон:Convert	Aug 13–14, 2019
Шаблон:Date table sorting	Шаблон:Convert	Sep 6, 1993 Sep 5, 1965
Шаблон:Date table sorting	Шаблон:Convert	Oct 10, 1986
Шаблон:Date table sorting	Шаблон:Convert	Nov 9–10, 1979
Шаблон:Date table sorting	Шаблон:Convert	Dec 11, 2017 Dec 28, 1982

Precipitation

Rainfall

Between 2000 and 2022 the annual rainfall in Anchorage was 16.7 inches. The months with the highest average mean of rain were August and September, each having an annual mean of 2.75 inches (August) and 3.24 inches (September).

Snowfall

Файл:Anchorage, Alaska.JPG

Winter view of Anchorage and the Chugach Mountains

For snowfall, the annual mean average for 2000 to 2022 was 76.4 inches; the highest snowfall season being 2011 - 2012 with 134.5 inches, and the lowest season being 25.1 inches in 2015.

Climate change

Based on the ERA5 data published by ECMWF, the annual mean temperature of Anchorage has increased from 0.8 °C in 1940 to 3.8 °C in 2022, an increase of 3 °C. The mayor and the assembly of Anchorage in 2019 issued a climate action plan for the anticipated effects that climate change will have on its city and people. The action plan includes all of the municipality of Anchorage, as far north as Eklutna and as south as Portage. One of the major goals of the climate action plan is to reduce green house gas emissions by 80% by the year 2050 from its 2008 emission levels. The first annual report on this came out in 2021. For its near term plans, the city also introduced a plan called the "Municipality of Anchorage Climate Action Strategy." This appearsШаблон:Whom to be a document for a broader audience of people so it is easier for them to understand what will go into these climate action plans. In comparison, the Anchorage Climate Action plan is 108 pages long, whereas the Municipality of Anchorage Climate Action Strategy is just 12 pages.Шаблон:Original research inline Шаблон:Climate chart convertible

Notable climate events

Due to its proximity to active volcanoes, ash hazards are a significant, though infrequent, occurrence. The most recent notable incident was an August 1992 eruption of Mt. Spurr, which is located 78 mi (126 km) west of the city.Шаблон:Update inline The eruption deposited about 3 mm (0.12 in) of volcanic ash on the city. The cleanup of ash resulted in excessive demands for water and caused major problems for the Anchorage Water and Wastewater Utility.Шаблон:Cn

On March 17, 2002, there was a storm that caused 28.6 in of snow to close schools for two days. The storm broke the city record for the most snowfall in a single day. The storm beat the previous record from 1955 on March 16, which was just 15.6 inches. The National Weather Service also recorded this same snow data.