Its the start of Summer and temperatures in many U.S States are cranking up towards the 100°F (38°C) mark with many record daily high temperatures being broken. In Bismarck, North Dakota on Friday, June 5 hit a high temperature of 106°F (41°C) this broke the old June 5 record of 95F (35°C) set in 1988. North Dakota and other Midwestern are forecast to be in the 90°Fs and 100°Fs for early June. But no all time state records will be broken for a while. The last time a state broke an all time record high was in Colorado in July 2019 when it reached 115°F (46°C) in the southeastern part of the state.
It may comes as a surprise that several Midwestern states reached 120°F (49°C) or above especially in North Dakota's reading of 122 degrees Fahrenheit which happened during the 1930s Dust Bowl. An exceptional drought hit the Midwest forcing temperatures to reach over 100 degrees for weeks in the summer. Yearly high temperatures over 115 degrees can be expected in southwestern states like Arizona, California and New Mexico. According to Climate Central between 1970-2019 (50 years) several US state have warmed over 3 degrees Fahrenheit. And states like New Mexico, Arizona, New Jersey, Delaware and Rhode Island summer temps have warmed by 4 degrees plus since 1970 which makes these states more likely to break all time record high temperatures in the near future. Keep in mind that many US States still hold their all time record high temperature before the year 2000.
These are the US States that are likely to exceed an all time record high temperature (greater then 40% chance) before 2030.
#1 Utah:
#2 Alaska:
Alaska is the coldest yet fastest warming state in the US. According to Climate Central yearly temperatures in Alaska has warmed 4.3 degrees Fahrenheit in the last 50 years and summer is the slowest warming season for Alaska with a 3°F (1.7°C) increase in the last 50 years. In 2019 the state was in the midst of an exceptional summer, July 2019 was Alaska's warmest month of 58.1°F (14°C) Anchorage, Alaska's largest city hit 90°F (32°C) for the first time ever on July 4th broke the previous all time record high of 85°F (29°C). The hottest record temperature in Alaska is 100°F in Fort Yukon on June 27, 1915 yes 1915 not 2019. Fort Yukon is located in the northeast Interior Alaska which daytime high in the summer is among the hottest in Alaska. Summer temperatures can be from 85°-95°F in any given summer in the Interior. Alaska is likely to brake over 100 degree before 2030 the state is among the fastest warming in the US.
#3 Texas:
This so-called biggest state in America (really 2nd to Alaska) has its fear share of reaching over 100 degrees during the summer. Texas is by far the warmest state in the country during the summer with a mean summer temperature of 82°F (28°C). Texas is a big state with desert and semi arid areas in the west and wet areas averaging over 50 inches of rain in the east. In areas in West Texas summer temperatures can exceed 110 degrees five to ten days per year rivaling low elevation deserts in New Mexico, Arizona and California. The highest temperature recorded in Texas was 120 degrees on June 28, 1994 in Monahans. Summer temperatures in Texas have increased by 3.8 degrees since 1970 so Texas is due to break an all time heat record.
#4 New Jersey:
The Garden State is among the fastest warming in the country. Summer temperatures New Jersey have increased by four degrees Fahrenheit since 1970. And since 2010 torrid days above 95°F (35°C) have increased by 10 days since the 1970s and overnight low of 75°F (24°C) also increased by 10 days since the 1970s. On July 2011 Newark in northern New Jersey reached 103, 108 and 102 degrees on July 21, 22 and 23 respectively amid a very strong heat wave at bombarded the Northeastern US. The hottest temperature recorded in New Jersey was 110°F on July 10, 1936 amid the Dust Bowl. New Jersey can expect a reading of 111°F or above before 2030.
#5 New Mexico:
The Land of Enchantment is the 2nd fastest warming state in the US after Alaska and highest daily temperatures in this state can routinely exceed 100 degrees Fahrenheit in the late spring to early autumn. New Mexico is a hot and dry state with occasional monsoons in the summertime which can lower daytime temperatures. According to Climate Central New Mexico average summer temperature have increased by 4.5 degrees Fahrenheit in the last fifty years the high increase in the country. New Mexico average summer temperature is 72.4°F (22.4°C) seems cool compared to Texas but daytime highs in southern and southeast New Mexico exceeds 100 degrees 25-40 days per year. The hottest temperature recorded in New Mexico was 122°F (50°C) on June 27, 1994 in Loving. Summer 2020 was the state's hottest summer and Roswell recorded 65 days above 100 degrees Fahrenheit. New Mexico is very likely to exceed 122 degrees before 2030 and the state has been in a multi year severe drought makes it very likely.
#6 Arizona:
Like New Mexico, Arizona can also have temperatures surpassing 100 degrees Fahrenheit in the summer. Phoenix the state capital averages 110 days of triple digit heat and 18-25 days at or above 110°F. The highest temperature every record in Arizona was 128°F on June 29, 1994 in Lake Havasu City in western part of the state. It's likely that somewhere in Arizona to surpass the 128°F reading before 2030, summers are getting warmer in Arizona and according to Climate Central summer temperatures was risen by 4.2 degrees in the last 50 years.
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