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Christopher C. Burt, a weather historian writing for Weather Underground, believes that the 1913 Death Valley reading is "a myth", and is at least 2.2 or 2.8 °C (4 or 5 °F) too high. [13] Burt proposes that the highest reliably recorded temperature on Earth could still be at Death Valley, but is instead 54.0 °C (129.2 °F) recorded on 30 ...
Huelmo–Mascardi Cold Reversal cold in Southern Hemisphere: 10,800–9,500: Younger Dryas sudden cold and dry period in Northern Hemisphere (B-S) 9,500–5,500: Holocene climatic optimum A warm period about 4.9 °C warmer than the LGM
A 2007 estimate of snow cover over the Northern Hemisphere suggested that, on average, snow cover ranges from a minimum extent of 2 million square kilometres (0.77 × 10 ^ 6 sq mi) each August to a maximum extent of 45 million square kilometres (17 × 10 ^ 6 sq mi) each January or nearly half of the land surface in that hemisphere.
Winter storms can produce both ice and snow, but are usually more notable in one of these two categories. The "Maximum accumulation" sections reflect the more notable category which is represented in inches of snow unless otherwise stated. Only category 1 and higher storms as defined by their regional snowfall index are included here.
The highest snowfall totals were reported by the National Weather Service to have occurred from an area extending south from Laramie, Wyoming to the Colorado foothills as well as an area east of Denver. The foothills saw a few reports of snow totals in excess of 36 inches (91 cm), with Black Hawk receiving 48 inches (120 cm) of accumulation.
s: A dry summer—the driest month in the high-sun half of the year (April to September in the Northern Hemisphere, October to March in the Southern Hemisphere) has less than 30 millimetres (1.18 in)/40 millimetres (1.57 in) of rainfall and has exactly or less than 1 ⁄ 3 the precipitation of the wettest month in the low-sun half of the year ...
The list of snowiest places in the United States by state shows average annual snowfall totals for the period from mid-1985 to mid-2015. Only places in the official climate database of the National Weather Service, a service of NOAA, are included in this list.
In Erie, Pennsylvania, an all time single day snowfall record was set at 22.6 in (57 cm) with a total of 42.5 in (108 cm) of snowfall. [21] Areas slightly further north in Ontario also were severely affected, with 100 centimetres (39 in) of snow being reported in Echo Bay and 73–82 centimetres (29–32 in) in Sault Ste. Marie. Within Ontario ...