The monthly climate report for the National Centers for Environmental Information (NCEI) was released on Tuesday, releasing non-supposing information. The average temperature across the Lower 48 of the United States was 48.9 degrees, which is 2.2 degrees below average. This makes it the 13th coldest April on record and the coldest since 1997, or the coldest April in 21 years. While much of the East experienced below average temperatures and even record cold temperatures, the Southwest had a warmer than normal April. This is due to contents ridging over the West, allowing for cold air to pour into the Eastern two-thirds of the country from Canada.
Twenty-two states 10 coldest April on record while eight states had their second coldest April on record. Then there was Iowa and Wisconsin, the two states measuring their coldest April on record. According to NCEI, “The cold temperatures across the central U.S. were driven in large part by record cold minimum temperatures, or “overnight lows.” Nine states had an average minimum temperature for the month that was record cold with fourteen additional states having much-below-average minimum temperatures. Nationally, the April minimum temperature was the seventh coldest on record at 36.1°F, 2.6°F below average.”