Weather on April 20 at Hawaii Volcanoes
Hawaii Volcanoes National Park
Based on 55 years of data from Hilo, HI
Elevation Note: Hawaii Volcanoes sits at 4,000 ft. Expect temperatures 14°F cooler than the data shown below, which comes from Hilo, HI at a lower elevation.
Planning Your Visit
April 20th in Hawaii Volcanoes National Park (via Hilo, HI) typically brings warm spring weather, with average highs around 80°F and lows near 66°F. Over 55 years of records, the warmest April 20th was in 1978 (79°F average), while the coldest was 1971 (67°F) — a 12°F range across recorded history. Rain or other precipitation has occurred on about 84% of April 20th dates historically, with the wettest April 20th recording 8.03" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for April 20th in Hawaii Volcanoes? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 80°F | 67°F | 0.18" | -- |
| 2024 | 73°F | 64°F | 1.85" | -- |
| 2023 | 83°F | 64°F | 0" | -- |
| 2022 | 81°F | 66°F | 0.25" | -- |
| 2021 | 87°F | 70°F | 0" | -- |
| 2020 | 84°F | 67°F | 0" | -- |
| 2019 | 82°F | 67°F | 0.58" | -- |
| 2018 | 80°F | 70°F | 1.02" | -- |
| 2017 | 84°F | 64°F | 0" | -- |
| 2016 | 82°F | 68°F | 0.15" | -- |
| 2015 | 80°F | 67°F | 1.3" | -- |
| 2014 | 80°F | 68°F | 0.56" | -- |
| 2013 | 83°F | 64°F | 0" | -- |
| 2012 | 79°F | 65°F | 0.86" | -- |
| 2011 | 82°F | 64°F | 0.03" | -- |
| 2010 | 76°F | 65°F | 0.2" | -- |
| 2009 | 80°F | 63°F | 0" | -- |
| 2008 | 81°F | 66°F | 0.79" | -- |
| 2007 | 83°F | 66°F | 1.24" | -- |
| 2006 | 79°F | 65°F | 0.46" | -- |
| 2005 | 81°F | 64°F | 0.23" | -- |
| 2004 | 81°F | 67°F | 0.41" | -- |
| 2003 | 79°F | 67°F | 1.83" | -- |
| 2002 | 82°F | 69°F | 0.2" | -- |
| 2001 | 75°F | 64°F | 1.4" | -- |
| 2000 | 77°F | 64°F | 0.15" | -- |
| 1999 | 80°F | 65°F | 0.08" | -- |
| 1998 | 81°F | 67°F | 0.33" | -- |
| 1997 | 85°F | 65°F | 0" | 0" |
| 1996 | 83°F | 67°F | 1.35" | 0" |
| 1995 | 83°F | 68°F | 0.05" | 0" |
| 1994 | 80°F | 68°F | 1.22" | 0" |
| 1993 | 79°F | 67°F | 3.68" | 0" |
| 1992 | 83°F | 65°F | 0.13" | 0" |
| 1991 | 80°F | 62°F | 0.46" | 0" |
| 1990 | 81°F | 68°F | 0.25" | 0" |
| 1989 | 78°F | 65°F | 1.35" | 0" |
| 1988 | 79°F | 64°F | 0.38" | 0" |
| 1987 | 80°F | 67°F | 0.13" | 0" |
| 1986 | 84°F | 65°F | 1.4" | 0" |
| 1985 | 76°F | 64°F | 1.63" | 0" |
| 1984 | 80°F | 68°F | 1.37" | 0" |
| 1983 | 74°F | 64°F | 1.14" | 0" |
| 1982 | 78°F | 65°F | 3.07" | 0" |
| 1981 | 82°F | 67°F | 0.71" | 0" |
| 1980 | 82°F | 65°F | 0" | 0" |
| 1979 | 80°F | 66°F | 0.13" | 0" |
| 1978 | 89°F | 70°F | 0" | 0" |
| 1977 | 82°F | 68°F | 0.38" | 0" |
| 1976 | 79°F | 66°F | 0.99" | 0" |
| 1975 | 76°F | 67°F | 0.76" | 0" |
| 1974 | 79°F | 66°F | 1.73" | 0" |
| 1973 | 82°F | 64°F | 0.18" | 0" |
| 1972 | 79°F | 66°F | 2.21" | 0" |
| 1971 | 72°F | 63°F | 8.03" | 0" |