October weather in Rialto, CA
The average temperature in Rialto in October is 68.3°F (54.8°F–81.9°F). Average precipitation: 0.40 inches.
October is a fall month in Rialto, and is warmer than the annual average of 66.6°F. Daily temperatures swing about 27.1°F between overnight low and afternoon high. Expect about 2 days with precipitation. Daylight averages about 11h 7m. For travel, October is a comfortable month to visit.
Avg High
81.9°F
Avg Low
54.8°F
Precipitation
0.40 in
Daylight
11h 7m
October records in Rialto
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 108.0°F (1980) | 41.0°F (1971) | 0.40 in (1983) |
| October 2 | 104.0°F (1991) | 44.1°F (1971) | 0.01 in (1976) |
| October 3 | 105.1°F (1987) | 46.0°F (2002) | 0.11 in (1968) |
| October 4 | 105.1°F (1987) | 46.9°F (1965) | 0.28 in (1983) |
| October 5 | 102.9°F (1964) | 46.0°F (1965) | 0.10 in (1994) |
| October 6 | 105.1°F (1996) | 45.0°F (1965) | 0.29 in (1966) |
| October 7 | 107.1°F (1996) | 46.9°F (1957) | 0.05 in (1983) |
| October 8 | 102.9°F (2008) | 42.1°F (1970) | 0.13 in (1973) |
| October 9 | 102.0°F (1991) | 37.9°F (1961) | 0.18 in (1986) |
| October 10 | 106.0°F (1991) | 41.0°F (1961) | 0.41 in (1960) |
| October 11 | 102.0°F (1971) | 42.1°F (1961) | 0.43 in (1987) |
| October 12 | 99.0°F (1971) | 42.1°F (1960) | 0.28 in (1987) |
| October 13 | 99.0°F (1958) | 39.0°F (1969) | 0.00 in (1948) |
| October 14 | 102.9°F (1978) | 42.1°F (1969) | 0.36 in (1957) |
| October 15 | 102.0°F (1961) | 44.1°F (1981) | 0.02 in (1994) |
| October 16 | 102.0°F (1959) | 37.0°F (1966) | 0.14 in (1971) |
| October 17 | 104.0°F (1958) | 37.0°F (1965) | 0.64 in (2005) |
| October 18 | 102.9°F (1958) | 39.9°F (1970) | 0.60 in (2005) |
| October 19 | 100.9°F (2003) | 39.9°F (1971) | 0.11 in (2004) |
| October 20 | 102.0°F (2003) | 42.1°F (1969) | 1.96 in (2004) |
| October 21 | 105.1°F (2003) | 42.1°F (1966) | 0.24 in (1957) |
| October 22 | 100.0°F (2003) | 39.0°F (1966) | 0.43 in (1987) |
| October 23 | 100.9°F (2003) | 39.9°F (1996) | 0.21 in (1987) |
| October 24 | 102.9°F (1959) | 39.9°F (1975) | 0.03 in (1987) |
| October 25 | 98.1°F (1968) | 37.9°F (1971) | 0.19 in (1971) |
| October 26 | 99.0°F (1965) | 34.0°F (1970) | 0.28 in (1991) |
| October 27 | 98.1°F (2008) | 39.9°F (1970) | 1.67 in (2004) |
| October 28 | 102.9°F (2008) | 32.0°F (1970) | 0.26 in (1981) |
| October 29 | 97.0°F (2008) | 35.1°F (1956) | 0.17 in (2000) |
| October 30 | 96.1°F (1962) | 32.0°F (1971) | 0.37 in (1992) |
| October 31 | 96.1°F (1962) | 36.0°F (1971) | 0.56 in (1957) |