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The 2000 expedition departed from a Russian research base around 114 km from the Pole and claimed an average speed of 20–15 km/h in an average temperature of −30 °C. 21st century USS Charlotte at the North Pole in 2005
The image above shows where average air temperatures (October 2010 – September 2011) were up to 3 degrees Celsius above (red) or below (blue) the long-term average (1981–2010). The map shows the 10-year average (2000–2009) global mean temperature anomaly relative to the 1951–1980 mean.
Most of northern Alaska has an Arctic climate with long, extremely cold winters and short, cool summers. The average temperatures during the summer months are only several degrees above freezing and the average temperatures during winter are as low as −20 to −30 °F (−29 to −34 °C), and can dip to −50 to −60 °F (−46 to −51 °C).
Over the week of Jan. 5 to 11, Pittsburgh's temperatures have been most similar to Anchorage, Alaska's historical average temperatures for this time of year, according to the Southeast Regional ...
For example, if a particular location had an average temperature of −20 °C (−4 °F) in its coldest month, the warmest month would need to average 11 °C (52 °F) or higher for trees to be able to survive there as 9 − 0.1(−20) = 11. Nordenskiöld's line tends to run to the north of Köppen's near the west coasts of the Northern ...
This image is in the public domain because it contains materials that originally came from the U.S. National Oceanic and Atmospheric Administration, taken or made as part of an employee's official duties.
The climate of Alaska is determined by average temperatures and precipitation received statewide over many years. The extratropical storm track runs along the Aleutian Island chain, across the Alaska Peninsula , and along the coastal area of the Gulf of Alaska which exposes these parts of the state to a large majority of the storms crossing the ...
Average winter temperatures can go as low as −40 °C (−40 °F), and the coldest recorded temperature is approximately −68 °C (−90 °F). Coastal Arctic climates are moderated by oceanic influences, having generally warmer temperatures and heavier snowfalls than the colder and drier interior areas.