Hawaii Annual Rainfall see below for individual cities 


 

Hawaii city precipitation totals

City

Avg Annual Precip

Avg Snow Annual

 Avg. days w Precip Avg # snow days Avg # thunderstorm days Avg # hail days
Hilo 126.27 0.0 278 0 10 0
Honolulu 18.29 0.0 98 0 7 0
Kahului 18.80 0.0 100 0 4 0
Lihue 39.57 0.0 200 8 8 8
State Average - 63.70 inches, 1st - wettest in U.S.

Hawaii Precipitation Records 

  • Driest location ranked by lowest annual average precipitation: Puako, Big Island, 5.7"
  • Wettest location ranked by highest annual average precipitation: Mount Waialeale, Kauai Island, 460.00" 
  • Snowiest location ranked by highest annual average snowfall: The peaks of Mauna Kea, Big Island and Mount Haleakala, Maui
  • State precipitation record for 24 hours - Kilauea, Big Island, 1/24-25/1956, 38.00"
  • State precipitation record for 1 year - Kukui, Maui, 1982, 704.83" (58.7 feet)
  • It rained a 4-day U.S. record of 62.00" at Kukaiau, Big Island, Hawaii from 2/27-3/2/1902
  • Of the 401 reporting weather stations in Hawaii, 94 (or 23%) average over 100 inches of precipitation annually. The second wettest 
state in the U.S. - Louisiana - has no weather stations averaging over 80 inches
  • Although Hawaii is the wettest state in the U.S., the city Honolulu does not receive a high amount of rainfall annually with only 18.29"
of precipitation. Cities thought of as "Dry cities" actually receive more rainfall than Honolulu - Flagstaff, Arizona (22.91"), Amarillo, 
Texas (19.71") and Fargo, North Dakota (21.19")

Precipitation data for other U.S. states
Data source: National Data Climatic Center