Hilo Weather In May
In the last 64 years the highest measured temperature in Hilo Hawaii for May was 94 degrees Fahrenheit, most recently encountered on May 20, 1966, and the normal high is 81. In the last 64 years the lowest measured May temperature in Hilo was 59 most recently measured on May 8, 1992, and the average low daily temperature is 67.
United States NWS 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. The Weather Service additionally shows that on May 13, 1996, the low for the day did not drop below 73 degrees, the highest low temperature in Hilo in the last 64 years.
National Weather Service records indicate that the high temperature in Hilo on May First averages 80 degrees and the high on the last day of the month averages 82 degrees. The low temperature in Hilo in May on the first day of the month averages 66 degrees and the low temperature on the last day of the month averages 67 degrees.
Hilo usually receives an average of 8.07 inches of precipitation 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.