Weather on February 18
Rialto, CA
55 Years of Data
About This Date
February 18th in Rialto, CA typically brings mild winter weather, with average highs around 66°F and lows near 45°F. Over 49 years of records, the warmest February 18th was in 1981 (71°F average), while the coldest was 2006 (43°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 8% of February 18th dates historically, with the wettest February 18th recording 2.54" of rain.
Planning for February 18th in Rialto, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 55° | 46° | 50° | — | — |
| 2025 | 75° | 47° | 61° | — | — |
| 2017 | 55° | 45° | 50° | — | — |
| 2016 | 60° | 48° | 54° | — | — |
| 2015 | 77° | 53° | 65° | — | — |
| 2014 | 71° | 42° | 57° | — | — |
| 2013 | 60° | 36° | 48° | — | — |
| 2012 | 62° | 42° | 52° | — | — |
| 2011 | 54° | 40° | 47° | — | — |
| 2010 | 68° | 48° | 58° | — | — |
| 2009 | 59° | 38° | 48° | — | — |
| 2008 | 68° | 47° | 57° | — | — |
| 2007 | 70° | 51° | 60° | — | — |
| 2006coldest | 48° | 38° | 43° | — | — |
| 2005 | 52° | 48° | 50° | — | — |
| 2004 | 61° | 44° | 52° | — | — |
| 2003 | 66° | 45° | 55° | — | — |
| 2002 | 56° | 38° | 47° | — | — |
| 2001 | 55° | 43° | 49° | — | — |
| 2000 | 68° | 40° | 54° | — | — |
| 1999 | 68° | 47° | 57° | — | — |
| 1998 | 63° | 37° | 50° | — | — |
| 1997 | 72° | 52° | 62° | — | — |
| 1996 | 66° | 47° | 56° | — | — |
| 1995 | 75° | 56° | 65° | — | — |
| 1994 | 51° | 41° | 46° | 0.15" | — |
| 1993 | 55° | 48° | 52° | — | — |
| 1992 | 64° | 46° | 55° | — | — |
| 1991 | 64° | 50° | 57° | — | — |
| 1990 | 48° | 41° | 45° | 2.54" | — |
| 1989 | 67° | 40° | 53° | — | — |
| 1988 | 66° | 36° | 51° | — | — |
| 1987 | 65° | 52° | 58° | — | — |
| 1986 | 65° | 52° | 58° | 0.1" | — |
| 1985 | 72° | 50° | 61° | — | — |
| 1984 | 68° | 38° | 53° | — | — |
| 1983 | 70° | 48° | 59° | — | — |
| 1982 | 74° | 53° | 63° | — | — |
| 1981warmest | 91° | 50° | 71° | — | — |
| 1980 | 71° | 54° | 62° | — | — |
| 1979 | 70° | 40° | 55° | — | — |
| 1978 | 68° | 40° | 54° | — | — |
| 1977 | 90° | 47° | 68° | — | — |
| 1976 | 74° | 41° | 57° | — | — |
| 1975 | 70° | 31° | 50° | — | — |
| 1974 | 63° | 37° | 50° | — | — |
| 1973 | 73° | 38° | 55° | — | — |
| 1972 | 82° | 49° | 65° | — | — |
| 1971 | 62° | 44° | 53° | 0.2" | — |
Rialto, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Rialto, CA Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Rialto, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Rialto, CA
Rialto, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.