Weather on March 21
Honolulu, HI
55 Years of Data
Avg High
80°F
Avg Low
65°F
Warmest
1974
78°F avg
Coldest
2018
67°F avg
About This Date
March 21st in Honolulu, HI typically brings warm spring weather, with average highs around 80°F and lows near 65°F. Over 53 years of records, the warmest March 21st was in 1974 (78°F average), while the coldest was 2018 (67°F) — a 11°F range across recorded history. Rain or other precipitation has occurred on about 15% of March 21st dates historically, with the wettest March 21st recording 1.04" 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 March 21st in Honolulu, HI? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 80° | 73° | 77° | — | — |
| 2025 | 82° | 68° | 75° | — | — |
| 2024 | 78° | 59° | 69° | — | — |
| 2023 | 77° | 64° | 71° | — | — |
| 2022 | 80° | 63° | 71° | — | — |
| 2021 | 76° | 61° | 68° | — | — |
| 2020 | 76° | 66° | 71° | — | — |
| 2019 | 77° | 58° | 67° | — | — |
| 2018coldest | 72° | 63° | 67° | — | — |
| 2017 | 79° | 63° | 71° | — | — |
| 2016 | 79° | 64° | 71° | — | — |
| 2015 | 82° | 63° | 72° | — | — |
| 2014 | 81° | 64° | 72° | — | — |
| 2013 | 84° | 70° | 77° | 1.04" | — |
| 2012 | 82° | 63° | 72° | — | — |
| 2011 | 82° | 65° | 73° | — | — |
| 2010 | 80° | 64° | 72° | — | — |
| 2009 | 81° | 67° | 74° | 0.25" | — |
| 2008 | 81° | 69° | 75° | 0.46" | — |
| 2007 | 79° | 62° | 70° | — | — |
| 2006 | 77° | 63° | 70° | — | — |
| 2005 | 78° | 63° | 70° | — | — |
| 2004 | 81° | 64° | 72° | — | — |
| 2003 | 82° | 64° | 73° | — | — |
| 2002 | 79° | 59° | 69° | — | — |
| 2001 | 78° | 60° | 69° | — | — |
| 2000 | 85° | 65° | 75° | — | — |
| 1998 | 75° | 67° | 71° | — | — |
| 1997 | 82° | 66° | 74° | — | — |
| 1996 | 76° | 63° | 69° | — | — |
| 1995 | 83° | 69° | 76° | — | — |
| 1994 | 80° | 65° | 72° | — | — |
| 1993 | 83° | 67° | 75° | — | — |
| 1992 | 80° | 65° | 72° | — | — |
| 1991 | 82° | 66° | 74° | 0.15" | — |
| 1990 | 80° | 60° | 70° | — | — |
| 1989 | 82° | 65° | 73° | — | — |
| 1988 | 85° | 67° | 76° | 0.03" | — |
| 1987 | 82° | 63° | 72° | — | — |
| 1986 | 82° | 65° | 73° | — | — |
| 1985 | 82° | 61° | 71° | — | — |
| 1984 | 83° | 68° | 75° | — | — |
| 1983 | 79° | 62° | 70° | — | — |
| 1982 | 84° | 70° | 77° | 0.86" | — |
| 1981 | 85° | 60° | 72° | — | — |
| 1978 | 83° | 60° | 71° | — | — |
| 1977 | 78° | 68° | 73° | — | — |
| 1976 | 81° | 66° | 73° | 0.08" | — |
| 1975 | 82° | 64° | 73° | — | — |
| 1974warmest | 82° | 74° | 78° | 0.43" | — |
| 1973 | 83° | 66° | 74° | — | — |
| 1972 | 81° | 61° | 71° | — | — |
| 1971 | 79° | 64° | 71° | — | — |
53 years of data from FRENCH FRIGATE SHOALS