Last month was the warmest May that has ever been recorded in Whanganui.
Figures released this week by the National Institute of Water and Atmospheric Research (Niwa) show an "exceptional" month.
Whanganui's average temperature for May was 15.9C - a whopping 2.8C above normal.
That's the highest since records began in 1937.
Also a record high for Whanganui was the average overnight mean minimum temperature, which was 3.2C above average at 11.7C.