Weather on May 18
Moreno Valley, CA
55 Years of Data
Avg High
80°F
Avg Low
52°F
Warmest
2008
82°F avg
Coldest
1994
54°F avg
About This Date
May 18th in Moreno Valley, CA typically brings warm spring weather, with average highs around 80°F and lows near 52°F — a 28°F daily swing. Over 55 years of records, the warmest May 18th was in 2008 (82°F average), while the coldest was 1994 (54°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 2% of May 18th dates historically, with the wettest May 18th recording 0.53" of rain. The last decade has been 2.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.6°F cooler on this date compared to 20-30 years ago.
Planning for May 18th in Moreno Valley, CA? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 74° | 53° | 63° | — | — |
| 2024 | 78° | 53° | 66° | — | — |
| 2023 | 81° | 53° | 67° | — | — |
| 2022 | 84° | 55° | 70° | — | — |
| 2021 | 79° | 56° | 67° | — | — |
| 2020 | 73° | 52° | 62° | — | — |
| 2019 | 73° | 39° | 56° | — | — |
| 2018 | 74° | 51° | 62° | — | — |
| 2017 | 82° | 44° | 63° | — | — |
| 2016 | 83° | 54° | 68° | — | — |
| 2015 | 71° | 52° | 61° | — | — |
| 2014 | 83° | 54° | 68° | — | — |
| 2013 | 77° | 58° | 67° | — | — |
| 2012 | 75° | 55° | 65° | — | — |
| 2011 | 63° | 47° | 55° | — | — |
| 2010 | 67° | 52° | 59° | — | — |
| 2009 | 92° | 59° | 75° | — | — |
| 2008warmest | 99° | 65° | 82° | — | — |
| 2007 | 79° | 53° | 66° | — | — |
| 2006 | 86° | 58° | 72° | — | — |
| 2005 | 80° | 48° | 64° | — | — |
| 2004 | 78° | 58° | 68° | — | — |
| 2003 | 77° | 48° | 63° | — | — |
| 2002 | 75° | 51° | 63° | — | — |
| 2001 | 77° | 52° | 64° | — | — |
| 2000 | 92° | 50° | 71° | — | — |
| 1999 | 86° | 53° | 70° | — | — |
| 1998 | 83° | 47° | 65° | — | — |
| 1997 | 84° | 62° | 73° | — | — |
| 1996 | 82° | 56° | 69° | — | — |
| 1995 | 79° | 52° | 65° | — | — |
| 1994coldest | 62° | 47° | 54° | 0.53" | — |
| 1993 | 83° | 57° | 70° | — | — |
| 1992 | 88° | 56° | 72° | — | — |
| 1991 | 71° | 47° | 59° | — | — |
| 1990 | 77° | 55° | 66° | — | — |
| 1989 | 76° | 56° | 66° | — | — |
| 1988 | 84° | 54° | 69° | — | — |
| 1987 | 80° | 59° | 70° | — | — |
| 1986 | 100° | 57° | 79° | — | — |
| 1985 | 80° | 47° | 63° | — | — |
| 1984 | 88° | 52° | 70° | — | — |
| 1983 | 90° | 52° | 71° | — | — |
| 1982 | 82° | 50° | 66° | — | — |
| 1981 | 78° | 45° | 61° | — | — |
| 1980 | 93° | 61° | 77° | — | — |
| 1979 | 80° | 53° | 67° | — | — |
| 1978 | 93° | 52° | 72° | — | — |
| 1977 | 74° | 41° | 57° | — | — |
| 1976 | 89° | 51° | 70° | — | — |
| 1975 | 77° | 51° | 64° | — | — |
| 1974 | 71° | 48° | 60° | — | — |
| 1973 | 88° | 52° | 70° | — | — |
| 1972 | 69° | 49° | 59° | — | — |
| 1971 | 84° | 43° | 63° | — | — |
55 years of data from MARCH AFB