Weather on May 20 at Channel Islands
Channel Islands National Park
CAPacific West
Avg High76°F
Avg Low48°F
Warmest200076°F
Coldest201950°F
Based on 55 years of data from Ventura, CA
Planning Your Visit
May 20th in Channel Islands National Park (via Ventura, CA) typically brings pleasant spring weather, with average highs around 76°F and lows near 48°F — a 28°F daily swing. Over 55 years of records, the warmest May 20th was in 2000 (76°F average), while the coldest was 2019 (50°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 5% of May 20th dates historically. The last decade has been 3.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.2°F cooler on this date compared to 20-30 years ago.
Planning for May 20th in Channel Islands? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 78°F | 55°F | 0" | -- |
| 2025 | 88°F | 45°F | 0" | -- |
| 2024 | 66°F | 45°F | 0" | -- |
| 2023 | 73°F | 55°F | 0" | -- |
| 2022 | 73°F | 52°F | 0.1" | -- |
| 2021 | 73°F | 39°F | 0" | -- |
| 2020 | 72°F | 40°F | 0" | -- |
| 2019 | 60°F | 39°F | 0.38" | -- |
| 2018 | 73°F | 41°F | 0" | -- |
| 2017 | 89°F | 47°F | 0" | -- |
| 2016 | 71°F | 52°F | 0" | -- |
| 2015 | 73°F | 47°F | 0" | -- |
| 2014 | 72°F | 44°F | 0" | -- |
| 2013 | 94°F | 46°F | 0" | -- |
| 2012 | 88°F | 52°F | -- | -- |
| 2011 | 68°F | 46°F | -- | -- |
| 2010 | 86°F | 55°F | -- | -- |
| 2009 | 81°F | 50°F | -- | -- |
| 2008 | 72°F | 52°F | -- | -- |
| 2007 | 68°F | 48°F | -- | -- |
| 2006 | 72°F | 57°F | -- | -- |
| 2005 | 84°F | 55°F | -- | -- |
| 2004 | 68°F | 46°F | -- | -- |
| 2003 | 90°F | 52°F | -- | -- |
| 2002 | 61°F | 46°F | -- | -- |
| 2001 | 73°F | 52°F | -- | -- |
| 2000 | 97°F | 55°F | 0" | 0" |
| 1999 | 70°F | 49°F | 0" | 0" |
| 1998 | 75°F | 45°F | 0" | 0" |
| 1997 | 78°F | 49°F | 0" | 0" |
| 1996 | 78°F | 48°F | 0" | 0" |
| 1995 | 63°F | 40°F | 0" | 0" |
| 1994 | 75°F | 43°F | 0" | 0" |
| 1993 | 72°F | 61°F | 0" | 0" |
| 1992 | 78°F | 49°F | 0" | 0" |
| 1991 | 71°F | 42°F | 0" | 0" |
| 1990 | 72°F | 43°F | 0" | 0" |
| 1989 | 80°F | 43°F | 0" | 0" |
| 1988 | 94°F | 52°F | 0" | 0" |
| 1986 | 79°F | 50°F | 0" | 0" |
| 1985 | 74°F | 44°F | 0" | 0" |
| 1984 | 81°F | 51°F | 0" | 0" |
| 1983 | 84°F | 50°F | 0" | 0" |
| 1982 | 74°F | 46°F | 0" | 0" |
| 1981 | 70°F | 52°F | 0" | 0" |
| 1980 | 81°F | 52°F | 0" | 0" |
| 1979 | 69°F | 45°F | 0" | 0" |
| 1978 | 84°F | 50°F | 0" | 0" |
| 1977 | 86°F | 42°F | 0" | 0" |
| 1976 | 74°F | 44°F | 0" | 0" |
| 1975 | 70°F | 46°F | 0" | 0" |
| 1974 | 77°F | -- | 0" | 0" |
| 1973 | 64°F | 55°F | 0" | 0" |
| 1972 | 60°F | 41°F | 0.25" | 0" |
| 1971 | 80°F | 47°F | 0" | 0" |
May 20 at Nearby Parks
Holiday Weather at Channel Islands
Official NPS WebsiteVisit nps.gov/chis for park information, alerts, and reservations
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