Weather on August 20
Hesperia, CA
55 Years of Data
Avg High
94°F
Avg Low
60°F
Warmest
2020
90°F avg
Coldest
1990
65°F avg
About This Date
August 20th in Hesperia, CA typically brings hot summer weather, with average highs around 94°F and lows near 60°F — a 34°F daily swing. Over 51 years of records, the warmest August 20th was in 2020 (90°F average), while the coldest was 1990 (65°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 2% of August 20th dates historically. The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
Planning for August 20th in Hesperia, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 102° | 66° | 84° | — | — |
| 2021 | 85° | 58° | 71° | — | — |
| 2020warmest | 109° | 72° | 90° | — | — |
| 2019 | 97° | 59° | 78° | — | — |
| 2018 | 98° | 70° | 84° | — | — |
| 2017 | 91° | 62° | 77° | — | — |
| 2016 | 97° | 65° | 81° | — | — |
| 2015 | 101° | 62° | 81° | — | — |
| 2014 | 85° | 61° | 73° | 0.08" | — |
| 2013 | 98° | 67° | 82° | — | — |
| 2012 | 97° | 71° | 84° | — | — |
| 2011 | 88° | 65° | 76° | — | — |
| 2010 | 95° | 61° | 78° | — | — |
| 2009 | 101° | 60° | 80° | — | — |
| 2008 | 90° | 61° | 75° | — | — |
| 2007 | 96° | 62° | 79° | — | — |
| 2006 | 96° | 55° | 76° | — | — |
| 2005 | 92° | 59° | 75° | — | — |
| 2004 | 97° | 61° | 79° | — | — |
| 2003 | 97° | 70° | 83° | — | — |
| 2002 | 95° | 57° | 76° | — | — |
| 2001 | 96° | 66° | 81° | — | — |
| 1999 | 101° | 67° | 84° | — | — |
| 1998 | 89° | 53° | 71° | — | — |
| 1997 | 92° | 63° | 77° | — | — |
| 1996 | 91° | 55° | 73° | — | — |
| 1995 | 101° | 68° | 84° | — | — |
| 1994 | 101° | 63° | 82° | — | — |
| 1993 | 78° | 51° | 65° | — | — |
| 1992 | 107° | 63° | 85° | — | — |
| 1991 | 96° | 56° | 76° | — | — |
| 1990coldest | 80° | 50° | 65° | — | — |
| 1989 | 90° | 56° | 73° | — | — |
| 1988 | 101° | 63° | 82° | — | — |
| 1987 | 101° | 62° | 81° | — | — |
| 1986 | 99° | 67° | 83° | — | — |
| 1985 | 95° | 53° | 74° | — | — |
| 1984 | 92° | 61° | 76° | — | — |
| 1983 | 79° | 60° | 69° | — | — |
| 1982 | 102° | 62° | 82° | — | — |
| 1981 | 95° | 57° | 76° | — | — |
| 1980 | 85° | 52° | 68° | — | — |
| 1979 | 88° | 54° | 71° | — | — |
| 1978 | 92° | 59° | 75° | — | — |
| 1977 | 93° | 65° | 79° | — | — |
| 1976 | 85° | 51° | 68° | — | — |
| 1975 | 80° | 52° | 66° | — | — |
| 1974 | 93° | 53° | 73° | — | — |
| 1973 | 99° | 71° | 85° | — | — |
| 1972 | 85° | 47° | 66° | — | — |
| 1971 | 99° | 60° | 79° | — | — |
51 years of data from HESPERIA 2E