ai6yr, NOAA NCEI:
"The average temperature of the contiguous U.S. in April was 53.8°F, 2.7°F above average, ranking 12th warmest in the 130-year record. April temperatures were above average across much of the contiguous U.S., while near- to below-average temperatures were observed in parts of the West, northern Plains, Upper Midwest, Southeast and in small pockets of the Northeast. Virginia and West Virginia each had their fifth-warmest April on record.
The Alaska statewide April temperature was 27.2°F, 3.9°F above the long-term average, ranking in the warmest third of the 100-year period of record for the state."