WEATHER IN Riverside
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | 19 (1950) | 43.6 | 55.6 | 67.7 | 96 (2003) |
| february | 24 (1942) | 44.7 | 56.3 | 67.9 | 96 (2013) |
| march | 25 (1954) | 46.9 | 59.5 | 72.1 | 99 (1988) |
| april | 29 (1970) | 50.0 | 62.9 | 75.9 | 105 (1989) |
| may | 34 (1950) | 55.3 | 67.6 | 79.9 | 110 (1984) |
| june | 39 (1950) | 59.3 | 73.0 | 86.7 | 111 (1990) |
| july | 41 (1948) | 63.9 | 78.6 | 93.3 | 116 (1934) |
| august | 42 (1950) | 64.7 | 79.8 | 94.9 | 113 (1997) |
| september | 39 (1948) | 61.9 | 76.6 | 91.3 | 115 (1955) |
| october | 30 (1971) | 55.2 | 68.9 | 82.7 | 109 (1980) |
| november | 23 (1950) | 47.4 | 61.0 | 74.5 | 99 (2010) |
| december | 21 (1949) | 42.8 | 54.8 | 66.8 | 94 (1958) |
| year | 19 (1950) | 52.9 | 65.8 | 78.7 | 116 (1934) |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 2.29 | 0.00 (1972) | 9.28 (1916) | 2.70 (1956) |
| february | 2.41 | 0.00 (1912) | 10.08 (1998) | 3.22 (1937) |
| march | 1.21 | 0.00 (1928) | 9.41 (1938) | 4.42 (1938) |
| april | 0.57 | 0.00 (1949) | 6.82 (1926) | 1.40 (1940) |
| may | 0.20 | 0.00 (1910) | 3.13 (1930) | 1.39 (1930) |
| june | 0.04 | 0.00 (1903) | 0.84 (1993) | 0.83 (1993) |
| july | 0.12 | 0.00 (1902) | 1.26 (1956) | 1.26 (1956) |
| august | 0.03 | 0.00 (1902) | 2.33 (1983) | 2.05 (1977) |
| september | 0.11 | 0.00 (1901) | 3.91 (1963) | 1.37 (1963) |
| october | 0.33 | 0.00 (1905) | 3.68 (1936) | 1.63 (2004) |
| november | 0.57 | 0.00 (1903) | 5.72 (1965) | 2.11 (1954) |
| december | 1.51 | 0.00 (1901) | 7.86 (1921) | 3.28 (1943) |
| year | 12.40 | 1.38 (2007) | 22.92 (1983) | 4.42 (1938) |
Number of days with solid, liquid, and mixed precipitation
| Type of precipitation | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Wind speed, m/s
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different wind directions, %
| direction | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Air humidity, %
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Snow cover
| Month | jul | aug | sep | oct | nov | dec | jan | feb | mar | apr | may | jun | Year |
| number of days | |||||||||||||
| height (sm) | |||||||||||||
| max height (sm) |
Cloudy, score
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| total | |||||||||||||
| low |
Number of clear, cloudy and cloudy days
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| Total cloud | |||||||||||||
| Low cloud | |||||||||||||
Number of days with different phenomena
| phenomenon | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different types of clouds, %
| type of clouds | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |