Weather on August 15
Roseville, CA
55 Years of Data
Avg High
95°F
Avg Low
61°F
Warmest
2020
92°F avg
Coldest
1976
60°F avg
About This Date
August 15th in Roseville, CA typically brings hot summer weather, with average highs around 95°F and lows near 61°F — a 34°F daily swing. Over 53 years of records, the warmest August 15th was in 2020 (92°F average), while the coldest was 1976 (60°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 4% of August 15th dates historically, with the wettest August 15th recording 2.24" of rain. The last decade has been 3.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.3°F warmer on this date compared to 20-30 years ago.
Planning for August 15th in Roseville, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 99° | 59° | 79° | — | — |
| 2024 | 94° | 65° | 79° | — | — |
| 2023 | 105° | 68° | 87° | — | — |
| 2022 | 102° | 56° | 79° | — | — |
| 2021 | 99° | 67° | 83° | — | — |
| 2020warmest | 110° | 74° | 92° | — | — |
| 2019 | 106° | 65° | 85° | — | — |
| 2018 | 94° | 59° | 76° | — | — |
| 2017 | 87° | 58° | 72° | — | — |
| 2016 | 99° | 68° | 83° | — | — |
| 2015 | 99° | 54° | 76° | — | — |
| 2014 | 96° | 67° | 81° | — | — |
| 2013 | 98° | 63° | 80° | — | — |
| 2012 | 101° | 73° | 87° | — | — |
| 2011 | 95° | 64° | 80° | — | — |
| 2010 | 92° | 58° | 75° | — | — |
| 2009 | 95° | 54° | 74° | — | — |
| 2008 | 108° | 68° | 88° | — | — |
| 2007 | 99° | 63° | 81° | — | — |
| 2006 | 94° | 57° | 75° | — | — |
| 2005 | 91° | 59° | 75° | — | — |
| 2004 | 94° | 58° | 76° | — | — |
| 2003 | 97° | 60° | 78° | — | — |
| 2002 | 102° | 65° | 83° | — | — |
| 2001 | 99° | 54° | 76° | — | — |
| 2000 | 98° | 57° | 78° | — | — |
| 1999 | 91° | 48° | 70° | — | — |
| 1998 | 99° | 67° | 83° | — | — |
| 1997 | 93° | 64° | 79° | — | — |
| 1996 | 102° | 66° | 84° | — | — |
| 1995 | 98° | 66° | 82° | — | — |
| 1994 | 102° | 56° | 79° | — | — |
| 1993 | 83° | 59° | 71° | — | — |
| 1992 | 103° | 69° | 86° | — | — |
| 1991 | 92° | 59° | 75° | 0.3" | — |
| 1990 | 89° | 62° | 76° | — | — |
| 1989 | 101° | 71° | 86° | — | — |
| 1988 | 85° | 54° | 69° | — | — |
| 1985 | 88° | 55° | 71° | — | — |
| 1984 | 98° | 63° | 80° | — | — |
| 1983 | 92° | 67° | 79° | — | — |
| 1982 | 82° | 55° | 69° | — | — |
| 1981 | 92° | 56° | 74° | — | — |
| 1980 | 82° | 54° | 68° | — | — |
| 1979 | 85° | 57° | 71° | — | — |
| 1978 | 94° | 60° | 77° | — | — |
| 1977 | 92° | 59° | 75° | — | — |
| 1976coldest | 64° | 56° | 60° | 2.24" | — |
| 1975 | 91° | 56° | 73° | — | — |
| 1974 | 93° | 55° | 74° | — | — |
| 1973 | 104° | 64° | 84° | — | — |
| 1972 | 81° | 55° | 68° | — | — |
| 1971 | 98° | 62° | 80° | — | — |
53 years of data from ROCKLIN