Weather on June 21 at Haleakala
Haleakala National Park
Based on 55 years of data from Kahului, HI
Elevation Note: Haleakala sits at 7,000 ft. Expect temperatures 25°F cooler than the data shown below, which comes from Kahului, HI at a lower elevation.
Planning Your Visit
June 21st in Haleakala National Park (via Kahului, HI) typically brings warm summer weather, with average highs around 86°F and lows near 70°F. Over 55 years of records, the warmest June 21st was in 1978 (82°F average), while the coldest was 1975 (74°F) — a 8°F range across recorded history. Rain or other precipitation has occurred on about 11% of June 21st dates historically. 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 June 21st in Haleakala? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 90°F | 69°F | 0" | -- |
| 2024 | 89°F | 72°F | 0" | -- |
| 2023 | 89°F | 68°F | 0" | -- |
| 2022 | 88°F | 68°F | 0" | -- |
| 2021 | 89°F | 66°F | 0" | -- |
| 2020 | 91°F | 71°F | 0" | -- |
| 2019 | 91°F | 67°F | 0" | -- |
| 2018 | 88°F | 66°F | 0" | -- |
| 2017 | 88°F | 69°F | 0" | -- |
| 2016 | 91°F | 68°F | 0" | -- |
| 2015 | 86°F | 72°F | 0" | -- |
| 2014 | 86°F | 70°F | 0" | -- |
| 2013 | 87°F | 73°F | 0" | -- |
| 2012 | 85°F | 71°F | 0" | -- |
| 2011 | 85°F | 69°F | 0.05" | -- |
| 2010 | 86°F | 71°F | 0.03" | -- |
| 2009 | 87°F | 72°F | 0.03" | -- |
| 2008 | 85°F | 70°F | 0" | -- |
| 2007 | 88°F | 73°F | 0" | -- |
| 2006 | 87°F | 73°F | 0" | -- |
| 2005 | 84°F | 71°F | 0.03" | -- |
| 2004 | 87°F | 74°F | 0" | -- |
| 2003 | 89°F | 73°F | 0" | -- |
| 2002 | 87°F | 72°F | 0" | -- |
| 2001 | 86°F | 70°F | 0" | -- |
| 2000 | 85°F | 66°F | 0" | -- |
| 1999 | 86°F | 68°F | 0" | -- |
| 1998 | 82°F | 70°F | 0" | -- |
| 1997 | 87°F | 70°F | 0.1" | 0" |
| 1996 | 89°F | 74°F | 0" | 0" |
| 1995 | 88°F | 69°F | 0" | 0" |
| 1994 | 84°F | 70°F | 0.1" | 0" |
| 1993 | 88°F | 71°F | 0" | 0" |
| 1992 | 86°F | 68°F | 0" | 0" |
| 1991 | 86°F | 63°F | 0" | 0" |
| 1990 | 86°F | 71°F | 0" | 0" |
| 1989 | 87°F | 67°F | 0" | 0" |
| 1988 | 87°F | 70°F | 0" | 0" |
| 1987 | 83°F | 71°F | 0" | 0" |
| 1986 | 87°F | 68°F | 0" | 0" |
| 1985 | 85°F | 72°F | 0" | 0" |
| 1984 | 87°F | 75°F | 0" | 0" |
| 1983 | 85°F | 73°F | 0" | 0" |
| 1982 | 85°F | 71°F | 0" | 0" |
| 1981 | 88°F | 76°F | 0" | 0" |
| 1980 | 87°F | 73°F | 0" | 0" |
| 1979 | 86°F | 69°F | 0" | 0" |
| 1978 | 89°F | 75°F | 0" | 0" |
| 1977 | 80°F | 72°F | 0" | 0" |
| 1976 | 81°F | 68°F | 0" | 0" |
| 1975 | 83°F | 66°F | 0" | 0" |
| 1974 | 82°F | 72°F | 0" | 0" |
| 1973 | 80°F | 69°F | 0" | 0" |
| 1972 | 81°F | 69°F | 0" | 0" |
| 1971 | 81°F | 69°F | 0" | 0" |