Hilo picked up 121.46 inches of rain in 2020. Measurable rain, 0.01 inch or more in a day, fell on 300 days at Hilo International Airport; the wettest day brought 9.16 inches on Mar 3, 2020. The 1991-2020 normal for a full year is 120.39 inches. The total landed 1.07 inches above the normal, which works out to 1% more. 2020 ranks 39th out of 76 complete years, wettest first, in a record that starts in 1949.
Monthly rain totals for 2020. Dark bars show measured amounts, light bars show the 1991-2020 normal for comparison.
Every day with measurable rain in 2020
Every day with measurable rain in 2020: Hilo
Date
Rainfall
0.36″ inches
0.06″ inches
0.10″ inches
0.17″ inches
0.13″ inches
0.28″ inches
0.07″ inches
0.01″ inches
0.73″ inches
0.97″ inches
4.68″ inches
3.17″ inches
0.85″ inches
1.46″ inches
0.11″ inches
0.01″ inches
0.20″ inches
0.41″ inches
0.01″ inches
0.04″ inches
0.02″ inches
0.10″ inches
0.03″ inches
0.02″ inches
0.26″ inches
0.17″ inches
0.65″ inches
0.30″ inches
0.12″ inches
0.51″ inches
4.34″ inches
0.35″ inches
0.30″ inches
1.62″ inches
1.21″ inches
0.22″ inches
0.40″ inches
0.53″ inches
0.02″ inches
0.19″ inches
0.03″ inches
0.11″ inches
0.32″ inches
1.37″ inches
1.25″ inches
2.26″ inches
0.15″ inches
1.02″ inches
0.03″ inches
0.85″ inches
0.52″ inches
0.10″ inches
0.02″ inches
0.03″ inches
0.08″ inches
0.01″ inches
1.64″ inches
0.11″ inches
0.01″ inches
0.02″ inches
0.31″ inches
0.01″ inches
0.01″ inches
0.35″ inches
0.19″ inches
0.33″ inches
0.01″ inches
1.71″ inches
0.01″ inches
0.30″ inches
0.10″ inches
0.28″ inches
4.78″ inches
0.24″ inches
0.01″ inches
0.28″ inches
0.06″ inches
0.05″ inches
0.07″ inches
0.15″ inches
0.23″ inches
0.74″ inches
1.03″ inches
0.12″ inches
0.03″ inches
0.03″ inches
0.03″ inches
0.03″ inches
0.09″ inches
0.13″ inches
0.10″ inches
0.07″ inches
0.18″ inches
0.03″ inches
0.15″ inches
0.01″ inches
0.09″ inches
0.15″ inches
0.16″ inches
0.08″ inches
0.20″ inches
0.20″ inches
0.10″ inches
0.04″ inches
0.08″ inches
0.22″ inches
0.01″ inches
0.07″ inches
0.05″ inches
0.08″ inches
0.24″ inches
0.20″ inches
0.63″ inches
0.61″ inches
0.18″ inches
0.04″ inches
0.08″ inches
0.20″ inches
0.09″ inches
0.06″ inches
0.32″ inches
0.12″ inches
0.47″ inches
0.05″ inches
0.46″ inches
0.19″ inches
0.01″ inches
0.13″ inches
0.06″ inches
0.20″ inches
0.07″ inches
0.91″ inches
0.02″ inches
0.18″ inches
0.42″ inches
0.05″ inches
0.11″ inches
0.36″ inches
0.19″ inches
0.19″ inches
0.23″ inches
0.20″ inches
0.04″ inches
0.11″ inches
0.03″ inches
0.03″ inches
0.04″ inches
0.50″ inches
0.32″ inches
0.09″ inches
0.10″ inches
0.01″ inches
0.07″ inches
0.19″ inches
0.13″ inches
0.13″ inches
0.47″ inches
0.08″ inches
0.44″ inches
0.05″ inches
0.05″ inches
0.09″ inches
0.39″ inches
0.12″ inches
0.03″ inches
0.08″ inches
0.14″ inches
0.20″ inches
0.34″ inches
0.02″ inches
0.01″ inches
0.34″ inches
0.07″ inches
0.19″ inches
0.01″ inches
0.06″ inches
0.12″ inches
0.02″ inches
0.02″ inches
0.01″ inches
0.19″ inches
0.25″ inches
0.38″ inches
0.74″ inches
0.09″ inches
0.07″ inches
0.02″ inches
0.11″ inches
0.24″ inches
0.16″ inches
0.11″ inches
0.13″ inches
0.05″ inches
0.13″ inches
0.06″ inches
0.22″ inches
0.07″ inches
0.03″ inches
0.01″ inches
0.12″ inches
0.10″ inches
0.03″ inches
0.03″ inches
0.06″ inches
0.15″ inches
0.01″ inches
0.01″ inches
0.03″ inches
0.05″ inches
0.10″ inches
0.05″ inches
3.11″ inches
0.31″ inches
0.41″ inches
0.06″ inches
0.02″ inches
0.66″ inches
0.01″ inches
1.30″ inches
0.71″ inches
0.31″ inches
0.39″ inches
0.87″ inches
1.95″ inches
0.51″ inches
0.85″ inches
0.86″ inches
0.65″ inches
0.33″ inches
0.85″ inches
0.07″ inches
0.12″ inches
0.04″ inches
0.31″ inches
2.19″ inches
2.29″ inches
0.43″ inches
0.08″ inches
0.11″ inches
0.06″ inches
0.08″ inches
0.51″ inches
0.01″ inches
0.05″ inches
0.42″ inches
0.35″ inches
0.86″ inches
9.16″ inches
2.14″ inches
1.41″ inches
0.59″ inches
0.31″ inches
0.12″ inches
0.05″ inches
0.19″ inches
0.08″ inches
0.34″ inches
0.17″ inches
0.45″ inches
0.45″ inches
0.61″ inches
0.09″ inches
0.16″ inches
0.06″ inches
0.05″ inches
0.05″ inches
0.14″ inches
0.28″ inches
0.25″ inches
0.32″ inches
0.01″ inches
0.11″ inches
0.32″ inches
0.42″ inches
0.23″ inches
0.02″ inches
0.13″ inches
0.03″ inches
0.03″ inches
0.07″ inches
0.08″ inches
0.07″ inches
0.09″ inches
0.44″ inches
0.07″ inches
0.65″ inches
1.83″ inches
0.51″ inches
0.41″ inches
2.73″ inches
0.64″ inches
3.21″ inches
0.73″ inches
0.59″ inches
0.40″ inches
0.57″ inches
1.63″ inches
0.55″ inches
0.10″ inches
0.08″ inches
Daily totals come from Hilo International Airport, which appears in GHCN-Daily with records going back to 1949. Station observations are from GHCN-Daily, with a 1-3 day lag and quality checks by NOAA.
Under 17 U.S.C. 105, no copyright attaches to the government-produced figures on this page, including reports, alerts, station observations, and normals, which were created by the National Weather Service and other NOAA offices. The notice that 17 U.S.C. 403 requires appears in this sentence. It does not imply endorsement by or affiliation with those agencies. See: Data sources and attribution.