Weather on October 18
Pomona, CA
55 Years of Data
Avg High
80°F
Avg Low
54°F
Warmest
2009
82°F avg
Coldest
1971
52°F avg
About This Date
October 18th in Pomona, CA typically brings warm fall weather, with average highs around 80°F and lows near 54°F — a 26°F daily swing. Over 52 years of records, the warmest October 18th was in 2009 (82°F average), while the coldest was 1971 (52°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 8% of October 18th dates historically, with the wettest October 18th recording 1.45" of rain. The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
Planning for October 18th in Pomona, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 85° | 54° | 69° | — | — |
| 2024 | 74° | 52° | 63° | — | — |
| 2023 | 97° | 61° | 79° | — | — |
| 2022 | 90° | 61° | 75° | — | — |
| 2021 | 59° | 46° | 53° | — | — |
| 2020 | 85° | 61° | 73° | — | — |
| 2019 | 77° | 52° | 64° | — | — |
| 2018 | 83° | 55° | 69° | — | — |
| 2017 | 86° | 62° | 74° | — | — |
| 2016 | 75° | 52° | 63° | — | — |
| 2015 | 78° | 60° | 69° | — | — |
| 2014 | 77° | 55° | 66° | — | — |
| 2013 | 85° | 51° | 68° | — | — |
| 2012 | 78° | 58° | 68° | — | — |
| 2011 | 80° | 56° | 68° | — | — |
| 2010 | 69° | 58° | 63° | 0.18" | — |
| 2009warmest | 94° | 70° | 82° | — | — |
| 2008 | 83° | 55° | 69° | — | — |
| 2007 | 80° | 50° | 65° | — | — |
| 2006 | 79° | 49° | 64° | — | — |
| 2005 | 65° | 54° | 59° | 0.89" | — |
| 2004 | 68° | 58° | 63° | 1.45" | — |
| 2003 | 100° | 61° | 80° | — | — |
| 2002 | 70° | 48° | 59° | — | — |
| 2001 | 81° | 51° | 66° | — | — |
| 2000 | 71° | 54° | 62° | — | — |
| 1999 | 87° | 42° | 65° | — | — |
| 1998 | 83° | 50° | 66° | — | — |
| 1994 | 76° | 50° | 63° | — | — |
| 1993 | 75° | 49° | 62° | — | — |
| 1992 | 75° | 54° | 64° | — | — |
| 1991 | 90° | 62° | 76° | — | — |
| 1990 | 82° | 56° | 69° | — | — |
| 1989 | 96° | 57° | 77° | — | — |
| 1988 | 84° | 62° | 73° | — | — |
| 1987 | 69° | 64° | 67° | — | — |
| 1986 | 71° | 47° | 59° | — | — |
| 1985 | 78° | 55° | 67° | — | — |
| 1984 | 74° | 42° | 58° | — | — |
| 1983 | 81° | 53° | 67° | — | — |
| 1982 | 79° | 51° | 65° | — | — |
| 1981 | 90° | 49° | 69° | — | — |
| 1980 | 82° | 46° | 64° | — | — |
| 1979 | 69° | 57° | 63° | — | — |
| 1978 | 80° | 52° | 66° | — | — |
| 1977 | 82° | 54° | 68° | — | — |
| 1976 | 81° | 58° | 69° | — | — |
| 1975 | 83° | 52° | 67° | — | — |
| 1974 | 98° | 59° | 79° | — | — |
| 1973 | 96° | 60° | 78° | — | — |
| 1972 | 71° | 56° | 63° | 0.97" | — |
| 1971coldest | 62° | 43° | 52° | — | — |
52 years of data from POMONA/FAIRPLEX