Weather on August 18
Roseville, CA
55 Years of Data
Avg High
94°F
Avg Low
60°F
Warmest
2020
89°F avg
Coldest
1985
61°F avg
About This Date
August 18th in Roseville, CA typically brings hot summer weather, with average highs around 94°F and lows near 60°F — a 34°F daily swing. Over 53 years of records, the warmest August 18th was in 2020 (89°F average), while the coldest was 1985 (61°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 4% of August 18th dates historically. 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 18th 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 | 89° | 60° | 75° | — | — |
| 2024 | 89° | 61° | 75° | — | — |
| 2023 | 95° | 67° | 81° | — | — |
| 2022 | 107° | 65° | 86° | — | — |
| 2021 | 88° | 58° | 73° | — | — |
| 2020warmest | 108° | 71° | 89° | — | — |
| 2019 | 91° | 60° | 76° | — | — |
| 2018 | 102° | 60° | 81° | — | — |
| 2017 | 99° | 66° | 82° | — | — |
| 2016 | 102° | 66° | 84° | — | — |
| 2015 | 100° | 68° | 84° | — | — |
| 2014 | 95° | 61° | 78° | — | — |
| 2013 | 104° | 63° | 83° | — | — |
| 2012 | 102° | 72° | 87° | — | — |
| 2011 | 97° | 55° | 76° | — | — |
| 2010 | 92° | 59° | 75° | — | — |
| 2009 | 100° | 62° | 81° | — | — |
| 2008 | 87° | 60° | 74° | — | — |
| 2007 | 95° | 60° | 78° | — | — |
| 2006 | 98° | 57° | 78° | — | — |
| 2005 | 92° | 58° | 75° | — | — |
| 2004 | 105° | 61° | 83° | — | — |
| 2003 | 103° | 59° | 81° | — | — |
| 2002 | 99° | 53° | 76° | — | — |
| 2001 | 101° | 65° | 83° | — | — |
| 2000 | 92° | 62° | 77° | — | — |
| 1999 | 91° | 58° | 74° | — | — |
| 1998 | 86° | 55° | 71° | — | — |
| 1997 | 88° | 58° | 73° | — | — |
| 1996 | 90° | 63° | 76° | — | — |
| 1995 | 94° | 47° | 70° | — | — |
| 1994 | 97° | 61° | 79° | — | — |
| 1993 | 94° | 58° | 76° | — | — |
| 1992 | 104° | 65° | 84° | — | — |
| 1991 | 91° | 56° | 73° | — | — |
| 1990 | 87° | 61° | 74° | — | — |
| 1989 | 85° | 55° | 70° | — | — |
| 1988 | 98° | 65° | 81° | — | — |
| 1985coldest | 70° | 53° | 61° | — | — |
| 1984 | 101° | — | — | — | — |
| 1983 | 99° | 59° | 79° | — | — |
| 1982 | 97° | 62° | 79° | — | — |
| 1981 | 96° | 57° | 77° | — | — |
| 1980 | 90° | 54° | 72° | — | — |
| 1979 | 93° | 61° | 77° | — | — |
| 1978 | 88° | 59° | 73° | — | — |
| 1977 | 84° | 62° | 73° | — | — |
| 1976 | 76° | 58° | 67° | 0.1" | — |
| 1975 | 86° | 56° | 71° | 0.08" | — |
| 1974 | 95° | 58° | 76° | — | — |
| 1973 | 98° | 49° | 73° | — | — |
| 1972 | 87° | 55° | 71° | — | — |
| 1971 | 99° | 52° | 75° | — | — |
53 years of data from ROCKLIN