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For example, the average daily high in San Francisco in July and August is between 62 and 68 °F (17 and 20 °C), [1] [2] and in Walnut Creek, some 20 miles (32 km) inland, the average daily high in July and August is 84 °F (29 °C): a temperature gain of more than one degree (Fahrenheit) per mile. [3]
A study published in Science Advances in 2022 stated that climate-caused changes in atmospheric rivers affecting California had already doubled the likelihood of megafloods since 1920—which can involve 100 inches (250 cm) of rain and/or melted snow in the mountains per month, or 25 to 34 feet (7.6 to 10.4 m) of snow in the Sierra Nevada—and ...
The record high temperature at the National Weather Service office in San Diego of 111 °F (44 °C) was on September 26, 1963. The record low temperature was 25 °F (−4 °C) on January 7, 1913. [8] The record high temperature was tied only once and happened on September 27, 2010, 47 years and two days after the set record.
Some parts of Alaska and Northern Canada have seen increases in snowfall over the last 40 years; in these frigid locales the amount of snow is more limited by cold weather, which decreases the ...
February set records from coast to coast, where 92% of the Lower 48 states experienced warmer than average temperatures. The only exceptions were parts of California and the Florida Peninsula.
Over the past several years, Sacramento has warmed up by an average of more than 2.3 degrees, according to Climate Central. The city recorded more than 15 days of above-normal temperatures during ...
The IPCC Fifth Assessment Report (AR5 WG1) of 2013 examined temperature variations during the last two millennia, and cited the following reconstructions in support of its conclusion that for average annual Northern Hemisphere temperatures, "the period 1983–2012 was very likely the warmest 30-year period of the last 800 years (high confidence ...
High temperature records continued to fall across California on Tuesday, as the most brutal heat wave of 2022 reached its peak, offering a grim preview of what climate change has in store for the ...