Weather on April 21
Newport Beach, CA
55 Years of Data
Avg High
66°F
Avg Low
54°F
Warmest
2009
72°F avg
Coldest
2003
51°F avg
About This Date
April 21st in Newport Beach, CA typically brings mild spring weather, with average highs around 66°F and lows near 54°F. Over 55 years of records, the warmest April 21st was in 2009 (72°F average), while the coldest was 2003 (51°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 9% of April 21st dates historically, with the wettest April 21st recording 0.71" of rain. The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
Planning for April 21st in Newport Beach, CA? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 62° | 56° | 59° | — | — |
| 2024 | 65° | 58° | 61° | — | — |
| 2023 | 73° | 55° | 64° | — | — |
| 2022 | 65° | 53° | 59° | — | — |
| 2021 | 61° | 57° | 59° | — | — |
| 2020 | 64° | 58° | 61° | — | — |
| 2019 | 68° | 55° | 62° | — | — |
| 2018 | 68° | 54° | 61° | — | — |
| 2017 | 72° | 56° | 64° | — | — |
| 2016 | 74° | 58° | 66° | — | — |
| 2015 | 63° | 59° | 61° | — | — |
| 2014 | 66° | 59° | 63° | — | — |
| 2013 | 65° | 56° | 60° | — | — |
| 2012 | 60° | 57° | 59° | — | — |
| 2011 | 63° | 58° | 60° | — | — |
| 2010 | 63° | 54° | 58° | 0.05" | — |
| 2009warmest | 84° | 60° | 72° | — | — |
| 2008 | 61° | 50° | 55° | — | — |
| 2007 | 64° | 49° | 56° | — | — |
| 2006 | 62° | 57° | 60° | — | — |
| 2005 | 66° | 54° | 60° | — | — |
| 2004 | 66° | 58° | 62° | — | — |
| 2003coldest | 65° | 38° | 51° | — | — |
| 2002 | 62° | 55° | 59° | — | — |
| 2001 | 56° | 53° | 54° | 0.69" | — |
| 2000 | 67° | 55° | 61° | — | — |
| 1999 | 68° | 57° | 63° | — | — |
| 1998 | 86° | 56° | 71° | — | — |
| 1997 | 65° | 57° | 61° | — | — |
| 1996 | 62° | 53° | 58° | — | — |
| 1995 | 59° | 50° | 55° | — | — |
| 1994 | 60° | 57° | 59° | — | — |
| 1993 | 72° | 57° | 64° | — | — |
| 1992 | 71° | 59° | 65° | — | — |
| 1991 | 61° | 55° | 58° | — | — |
| 1990 | 63° | 57° | 60° | — | — |
| 1989 | 64° | 58° | 61° | — | — |
| 1988 | 60° | 51° | 56° | 0.64" | — |
| 1987 | 80° | 56° | 68° | — | — |
| 1986 | 78° | 57° | 68° | — | — |
| 1985 | 63° | 55° | 59° | 0.08" | — |
| 1984 | 73° | 50° | 62° | — | — |
| 1983 | 64° | 54° | 59° | 0.71" | — |
| 1982 | 82° | 58° | 70° | — | — |
| 1981 | 76° | 49° | 62° | — | — |
| 1980 | 62° | 57° | 60° | — | — |
| 1979 | 65° | 51° | 58° | — | — |
| 1978 | 64° | 55° | 60° | — | — |
| 1977 | 68° | 50° | 59° | — | — |
| 1976 | 64° | 51° | 58° | — | — |
| 1975 | 62° | 52° | 57° | — | — |
| 1974 | 65° | 49° | 57° | — | — |
| 1973 | 66° | 48° | 57° | — | — |
| 1972 | 64° | 46° | 55° | — | — |
| 1971 | 61° | 47° | 54° | — | — |
55 years of data from NEWPORT BEACH HARBOR