The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages. Autumn in Alaska September is great for journey to Alaska as well. One of the most common is that Alaska temperatures in summer are cool. Hall, R. Horton, K. Knuuti, R. Moss, J. Obeysekera, A. Sallenger, and J. Weiss, 2012: Global Sea Level Rise Scenarios for the United States National Climate Assessment. Four main factors influence the stateâs climate: its northerly latitude crossing the Arctic circle, its wide range of elevation from sea level to the highest peak in the United States, proximity (or lack thereof) to the ocean, and seasonal distribution of sea ice along its western and northern boundaries. Wendler, G, K. Galloway, and M. Stuefer, 2015: On the climate and climate change of Sitka, Southeast Alaska. Temperatures usually remain below the freezing point for most of the year, with daily maximums reaching higher than 32°F an average of 110 days per year. From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night. Late summer Arctic sea ice extent and thickness has decreased substantially in the last several decades and the ice volume is approximately one half of that observed prior to satellite monitoring in 1979. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. Rain increases after mid-June. Time zones for airports and weather stations are provided by AskGeo.com . Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere). Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter. At Point Hope, on the north-western tip of Alaska, the daily average temperature ranges from -23 °C (-9.5 °F) in February (which at these latitudes is the coldest month) to 7.5 °C (45.5 °F) in July. The highest temperature ever recorded in Alaska was 100°F at Fort Yukon in the interior (June 27, 1915). You can jump to a separate table for each region of the state: Southeast, South - Central, Southwest, Interior and Far North Alaska. The precise start and end dates of polar day and night vary from year to year and depend on the precise location and elevation of the observer, and the local topography. The transitions to and from daylight saving time are indicated by the 'DST' labels. The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands. Melting ice beside severe erosion of the permafrost tundra at Bethel on the Yukon Delta in Alaska, April 15, 2019. For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. This warming coincided with a shift in a climate pattern known as the Pacific Decadal Oscillation (PDO). Thick fogs are infrequent and of short duration. What effect does the wide extremes of weather in Alaska have on life expectancy of it’s citizens in comparison to those with less variances? Copyright © 2020 Current Results Publishing Ltd. The day of the year with the warmest water is August 16, with an average temperature of 36°F. The record amount of rainfall to occur in a 24-hour period was 15.05 inches at Seward in southcentral Alaska in October 1986. To characterize how pleasant the weather is at Deadhorse Airport throughout the year, we compute two travel scores. Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC. Same this is a really good site to use from school projects. The thin dotted line is the corresponding average rainfall. For all other areas in this zone, the sun remains below the horizon from late November until mid-January, and continuous daylight runs from the middle of May through the end of July. The brighter period of the year lasts for 2.5 months, from May 4 to July 21, with an average daily incident shortwave energy per square meter above 4.7 kWh. Yohe, eds., 2014: Climate change impacts in the United States: The Third National Climate Assessment. The lowest minimum Arctic sea ice extent occurred in 2012 (Figure 6). Click here for instructions on how to enable JavaScript in your browser. The growing season at Deadhorse Airport typically lasts for 1.9 months (57 days), from around June 22 to around August 19, rarely starting before June 3, or ending after September 9. The chance of wet days at Deadhorse Airport varies throughout the year. 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. Easterling, K.E. I just changed it to “Rainfall”. 267-301. In Impacts, Risks, and Adaptation in the United States: Fourth National Climate Assessment, Volume II [Reidmiller, D.R., C.W. Climate models project that Arctic waters will be virtually ice-free by late summer before 2050. All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . Mild days with temperatures in the 30s do occur. How could one isolate weather? Mosquitos are gone and spectacular variety of autumn shades of local nature is available for admiration with any concerns. While historical precipitation trends are mixed, average precipitation is projected to increase in all seasons during the 21st century, with the greatest increases expected in winter and spring. Average annual precipitation amounts vary greatly across Alaska. Within 50 miles contains only modest variations in elevation (1,030 feet). precipitation in Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ... © US Climate Data 2020 | version 3.0 | by Your Weather Service |, Past weather December 2019 incomplete - Missing data, Average precipitation in : Av. WRCC, cited 2015: Climate of Alaska, Western Regional Climate Center. The end of the short summer is reached in September. Drying of wetlands, increased frequency of warm dry summers, and associated thunderstorms has led to a greater number of large fires during the 2000s than in any previous decade since record keeping began in the 1940s. The brightest day of the year is June 20, with an average of 5.9 kWh. Under a higher emissions pathway, historically unprecedented warming is projected by the end of the 21st century. Temperatures in the 70s are considered very warm; seldom do high temperatures ever reach the lower or middle 80s. There is considerable regional variability, however, as portions of interior and Arctic Alaska have observed a long-term decrease in precipitation. Global Change Research Program, Washington, DC, USA, pp. For most sections, the average occurrence of the last freeze in spring is during the second half of May, while the first in fall is during the first half of September. Based on this score, the best time of year to visit Deadhorse Airport for general outdoor tourist activities is from early July to early August, with a peak score in the last week of July. Kunkel, K.L.M. [, Stewart, B.C., K.E. Melillo, Jerry M., T.C. An aerial view from a drone shows a woman crossing a street inundated with flood water, Dec. 23, 2019, in Hallandale, Fla. (MORE: 2018 makes last 5 years the warmest in history, scientists say, as Democrats put climate change on agenda). [. The shaded overlays indicate night and civil twilight. The annual average temperature in Alaska has increased 3.5°F from 1949 to 2005. NOAA Technical Report NESDIS 142-7, 60 pp. We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.