Last month was the 14th hottest April on record, according to the latest climate data issued by the National Oceanic and Atmospheric Administration.
In its monthly survey, NOAA said that 31 states reported above-normal temperatures. Just California, Nevada and Oregon registered cooler-than-average Aprils.
NOAA has been tracking monthly temperature since 1895.
Separately, NOAA said that the average temperature in the United States mainland was 54.3 degrees F, or 2.3 points above the long-term (1901-2000) average.
Other highlights from the report:
- Most states east of the Rocky Mountains experienced above-normal temperatures
- The Northeast and the East North Central Region posted its second warmest-ever April
- Illinois, Maine, Connecticut, Rhode Island and New Jersey each had their warmest Aprils on record.
- The cooler-than-usual weather which prevailed in the South and Southeast continued into spring.