Hilo Weather In May

The highest recorded temperature in May for Hilo for the past 64 years was 94 degrees Fahrenheit, measured on May 20, 1966, while the normal high temperature is 81. The lowest documented temperature in May for Hilo for the past 64 years was 59 most recently measured on May 8, 1992, while the typical low recorded temperature is 67.

US National Weather Service historical Hilo May Weather data records that on May 3, 1952, the high temperature did not exceed 70 degrees Fahrenheit, the lowest high measured in Hilo in the past 64 years. Weather Service records additionally indicate that on May 13, 1996, the low for the day was not measured below 73 degrees, the highest low temperature recorded in Hilo in the last 64 years.

National Weather Service data shows that the high temperature in Hilo on May First averages 80 degrees Fahrenheit and the high on the final day of May averages 82 degrees. The daily low temperature in Hilo on May First averages 66 degrees Fahrenheit and the low on the last day of May averages 67 degrees.

Hilo usually receives an average of 8.07 inches of rain during the month. The most rain recorded in a single day, as shown by May Hilo Weather data, was 7.89 inches on May 21, 1989.