Hawaii Annual Temperatures and Extremes


Avg High Temp

Avg Low Temp 

Avg Annual Temp

Avg # days > 90F Avg # days < 32F  Record High Temp Record Low Temp
Hilo   81.2    66.4 73.8 1 0 94 / 1966 53 / 1962
Honolulu 84.0    70.3 77.1 27 0 95 / 1994 52 / 1969
Kahului  83.8    67.4 75.6 22 0 97 / 1994 48 / 1969
Lihue 81.1    69.8 75.5 0 0 90 / 1957 50 / 1969 
Hawaii annual average temperature - 71.61 degrees, 1st - the warmest state in the U.S.
Hawaii average Summer temperature (June, July, August) - 72.2 F degrees, 22nd warmest U.S. summer state
Hawaii average Winter temperature (December, January, February) - 67.4 F degrees, 50th coldest U.S. winter state

Hawaii Temperature Records

  • Hottest temperature ever recorded: 100 F, Pahala, southern island of Hawaii, 4/27/1931
  • Coldest temperature ever recorded: 12 F, Mauna Kea north-central island of Hawaii, 5/17/1979
  • Hottest location ranked by highest average annual temperature: Keahole Point, western island of Hawaii, 77.7 F
  • Coldest location ranked by lowest average annual temperature: Mauna Loa Obs, central island of Hawaii, 44.7 F
  • Hawaii's record for most consecutive days with the high temperature equal to or exceeding 90 degrees
    was set in August - September 1979 with 49 at Puukohola Heiau, Hawaii. The record for most consecutive days
    with the low temperature equal to or below 32 degrees was set during 2 separate occurrences at Mauna Loa Slope
    Obs, Hawaii with 27 days
  • In Hawaii, where surface temperatures are always above 50F, there is snow. Between 1 and 2 feet
    of snow
    falls each year in the mountains above 5,000 feet 

An interesting feature of the climate of Hawaii is the small annual temperature range. In downtown Honolulu, the warmest month is August with an average temperature of about 82° F. The coldest month is February, around 73° F – the range between the coldest and warmest months averages only nine degrees. At Hilo and Lihue, the range is five and eight degrees, respectively. While annual temperature ranges are almost as small as this in a narrow zone bordering the coast of California, throughout virtually all the remainder of the United States they are very much larger. 

The upper slopes of the high mountains lie well above the usual cloud zone and there are moderately wide swings in temperature from day to night. Thus in summer at an elevation of 8,000 feet it is not unusual to have daytime temperatures in the mid 60s and nighttime temperatures in the 40s; while in winter the range is typically from the 50s to near freezing or below. Diurnal temperature ranges are far less in the lowlands, with daytime temperatures commonly in the 70s to 80s and nighttime temperatures in the 60s to 70s. Both in the lowlands and at elevations up to about 4,000 feet the temperature differences from winter to summer are only four to eight degrees Fahrenheit (° F) in terms of differences in the mean daily maximum and mean daily minimum.

In areas above 2,000 or 3,000 feet on the high mountains of Mauna Kea, Mauna Loa and Haleakala, the lowest temperatures in the State are experienced in this region, with values below freezing being common.

Outside the dry, leeward areas, temperatures of 90° F and above are uncommon. In the leeward areas, temperatures in the low 90s may be reached, but temperatures much higher than these are unusual. The State’s record high of 100° F was set at Pahala, on the south side of the island of Hawaii, elevation 850 feet, on April 27, 1931.

At times the upper slopes of Mauna Kea and Mauna Loa are white with snow. Under favorable circumstances, cold air formed above this snow cover on clear nights produce very low temperatures at the highest elevations. Hawaii’s record minimum, 12° F, was set May 17, 1979 at Mauna Kea Observatory, elevation 13,770 feet.


Hawaii precipitation averages and extremes, precipitation and temperature data for all U.S. states and Top 10 U.S. climate extremes
Data source: National Climatic Data Center