Weather on March 21
Roseville, CA
55 Years of Data
Avg High
68°F
Avg Low
45°F
Warmest
2026
72°F avg
Coldest
1987
47°F avg
About This Date
March 21st in Roseville, CA typically brings mild spring weather, with average highs around 68°F and lows near 45°F. Over 56 years of records, the warmest March 21st was in 2026 (72°F average), while the coldest was 1987 (47°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 11% of March 21st dates historically, with the wettest March 21st recording 2.03" of rain. The last decade has been 3.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.3°F cooler on this date compared to 20-30 years ago.
Planning for March 21st in Roseville, CA? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 84° | 59° | 72° | — | — |
| 2025 | 65° | 45° | 55° | — | — |
| 2024 | 72° | 50° | 61° | — | — |
| 2023 | 61° | 43° | 52° | — | — |
| 2022 | 80° | 36° | 58° | — | — |
| 2021 | 67° | 32° | 49° | — | — |
| 2020 | 67° | 38° | 52° | — | — |
| 2019 | 65° | 40° | 52° | — | — |
| 2018 | 66° | 52° | 59° | — | — |
| 2017 | 67° | 52° | 59° | — | — |
| 2016 | 61° | 50° | 55° | — | — |
| 2015 | 74° | 48° | 61° | — | — |
| 2014 | 76° | 41° | 58° | — | — |
| 2013 | 67° | 41° | 54° | — | — |
| 2012 | 69° | 45° | 57° | — | — |
| 2011 | 57° | 44° | 51° | — | — |
| 2010 | 73° | 46° | 60° | — | — |
| 2009 | 60° | 50° | 55° | — | — |
| 2008 | 68° | 33° | 51° | — | — |
| 2007 | 70° | 47° | 58° | — | — |
| 2006 | 60° | 40° | 50° | — | — |
| 2005 | 65° | 49° | 57° | — | — |
| 2004 | 86° | 48° | 67° | — | — |
| 2003 | 74° | 41° | 57° | — | — |
| 2002 | 74° | 45° | 59° | — | — |
| 2001 | 81° | 55° | 68° | — | — |
| 2000 | 76° | 39° | 57° | — | — |
| 1999 | 62° | 39° | 51° | — | — |
| 1998 | 65° | 55° | 60° | — | — |
| 1997 | 73° | 53° | 63° | — | — |
| 1996 | 74° | 49° | 61° | — | — |
| 1995 | 55° | 44° | 50° | — | — |
| 1994 | 63° | 45° | 54° | — | — |
| 1993 | 72° | 47° | 59° | — | — |
| 1992 | 66° | 48° | 57° | — | — |
| 1991 | 52° | 42° | 47° | 0.33" | — |
| 1990 | 76° | 53° | 64° | — | — |
| 1989 | 70° | 49° | 59° | — | — |
| 1988 | 80° | 51° | 66° | — | — |
| 1987coldest | 54° | 40° | 47° | 0.66" | — |
| 1986 | 75° | 50° | 63° | — | — |
| 1985 | 62° | 43° | 52° | — | — |
| 1984 | 76° | 44° | 60° | — | — |
| 1983 | 53° | 44° | 49° | 2.03" | — |
| 1982 | 60° | 40° | 50° | — | — |
| 1981 | 56° | 45° | 50° | 0.48" | — |
| 1980 | 63° | 41° | 52° | — | — |
| 1979 | 65° | 46° | 55° | — | — |
| 1978 | 69° | 56° | 62° | 0.28" | — |
| 1977 | 72° | 43° | 57° | — | — |
| 1976 | 70° | 38° | 54° | — | — |
| 1975 | 58° | 39° | 48° | — | — |
| 1974 | 73° | 41° | 57° | — | — |
| 1973 | 57° | 42° | 50° | 0.25" | — |
| 1972 | 78° | 47° | 62° | — | — |
| 1971 | 74° | 42° | 58° | — | — |
56 years of data from ROCKLIN