Riverside Weather in 1940

Historical record of Riverside, California weather for the year 1940 based on NOAA data.
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1940 Riverside Weather Extremes
Highest temperature 107 °F August 20
Lowest temperature 30 °F March 13
Highest daily low 63 °F August 11
Lowest daily high 50 °F December 17
Most daily precipitation 1.5 inches January 8
Most daily snow none -
Total annual precipitation 15.7 inches -
Total annual snow none -
Highest Temperatures in Riverside in 1940
Rank Temperature Date
1 107 °F Aug 20
2 105 °F Jul 24
2 105 °F Jul 14
2 105 °F Jul 13
2 105 °F Jul 10
2 105 °F Jul 7
7 104 °F Oct 20
7 104 °F Oct 19
7 104 °F Aug 11
7 104 °F Jul 11
7 104 °F Jul 6
Lowest Temperatures in Riverside in 1940
Rank Temperature Date
1 30 °F March 13
2 31 °F February 16
2 31 °F January 21
4 32 °F December 15
4 32 °F November 24
4 32 °F February 17
4 32 °F January 20
4 32 °F January 19
4 32 °F January 18
4 32 °F January 17
4 32 °F January 14
January 1940 Riverside Weather
Day High (°F) Low (°F) Precip. (inches)
63 42 0.00
60 46 0.00
60 52 0.06
61 49 0.17
65 45 0.28
63 43 0.05
60 50 0.07
60 50 1.52
65 51 0.12
62 52 0.25
60 54 0.16
64 55 0.07
65 40 0.00
66 32 0.00
67 34 0.00
72 36 0.00
77 32 0.00
75 32 0.00
68 32 0.00
73 32 0.00
71 31 0.00
72 36 0.00
65 45 0.00
67 36 0.53
66 46 0.00
67 45 0.00
70 42 0.00
74 56 0.00
85 49 0.00
76 45 0.00
69 51 0.00
February 1940 Riverside Weather
Day High (°F) Low (°F) Precip. (inches)
68 50 1.07
54 47 0.22
59 49 0.00
57 53 0.71
63 46 0.00
73 42 0.00
74 50 0.05
67 46 0.00
68 36 0.00
74 36 0.00
72 36 0.00
68 36 0.00
69 34 0.00
70 35 0.08
60 36 0.00
62 31 0.00
73 32 0.00
70 43 0.00
69 36 0.00
72 35 0.00
76 45 0.10
75 48 0.05
59 50 0.00
72 43 0.00
77 47 0.49
68 52 0.00
69 45 0.00
70 42 0.00
71 49 0.11
March 1940 Riverside Weather
Day High (°F) Low (°F) Precip. (inches)
64 39 0.00
74 37 0.00
78 48 0.00
75 42 0.00
79 38 0.00
80 44 0.00
81 40 0.00
82 40 0.00
78 38 0.00
72 51 0.00
68 38 0.00
64 34 0.00
70 30 0.00
78 42 0.00
84 35 0.00
85 40 0.00
77 47 0.00
72 50 0.00
75 53 0.00
68 56 0.00
75 54 0.00
n/a n/a n/a
74 50 0.00
70 46 0.00
75 55 0.03
68 55 0.03
65 55 0.04
69 48 0.00
70 54 0.00
72 50 0.00
77 52 0.43
April 1940 Riverside Weather
Day High (°F) Low (°F) Precip. (inches)
64 47 1.40
62 45 0.00
69 43 0.00
69 46 0.00
67 44 0.00
73 42 0.00
73 45 0.00
69 51 0.00
73 57 0.00
77 49 0.00
91 48 0.00
94 47 0.00
99 51 0.00
100 53 0.00
87 54 0.00
71 45 0.02
72 44 0.00
82 44 0.00
85 46 0.00
85 46 0.00
81 53 0.00
80 50 0.00
68 56 0.00
71 55 0.00
73 53 0.00
69 48 0.46
63 44 0.18
65 48 0.00
73 49 0.00
80 50 0.00
May 1940 Riverside Weather
Day High (°F) Low (°F) Precip. (inches)
89 54 0.00
94 49 0.00
86 45 0.00
79 47 0.00
78 48 0.00
78 46 0.00
77 46 0.00
84 50 0.00
103 54 0.00
103 52 0.00
100 53 0.00
95 53 0.00
91 52 0.00
90 53 0.00
91 50 0.00
90 55 0.00
84 52 0.00
76 50 0.00
78 54 0.00
86 59 0.00
80 58 0.00
81 60 0.00
82 58 0.00
87 53 0.00
89 52 0.00
87 58 0.00
79 58 0.00
75 57 0.00
78 51 0.00
86 46 0.00
90 44 0.00
June 1940 Riverside Weather
Day High (°F) Low (°F) Precip. (inches)
89 50 0.00
88 50 0.00
85 50 0.00
84 55 0.00
78 58 0.00
80 54 0.00
80 60 0.00
77 59 0.00
81 56 0.00
88 56 0.00
94 54 0.00
92 53 0.00
95 54 0.00
97 54 0.00
88 60 0.00
85 59 0.00
82 55 0.00
91 50 0.00
92 48 0.00
94 50 0.00
97 55 0.00
86 55 0.00
89 57 0.00
92 55 0.00
89 51 0.00
95 54 0.00
89 52 0.00
92 55 0.00
94 58 0.00
83 57 0.00
July 1940 Riverside Weather
Day High (°F) Low (°F) Precip. (inches)
93 53 0.00
89 56 0.00
91 57 0.00
95 53 0.00
99 55 0.00
104 55 0.00
105 57 0.00
99 57 0.00
102 58 0.00
105 58 0.00
104 55 0.00
103 53 0.00
105 56 0.00
105 62 0.00
98 55 0.00
89 50 0.00
85 51 0.00
82 52 0.00
87 50 0.00
91 50 0.00
94 50 0.00
96 50 0.00
101 58 0.00
105 62 0.00
103 57 0.00
97 57 0.00
90 61 0.00
87 61 0.00
85 53 0.00
91 55 0.00
92 55 0.00
August 1940 Riverside Weather
Day High (°F) Low (°F) Precip. (inches)
94 54 0.00
96 55 0.00
96 58 0.00
96 57 0.00
94 58 0.00
94 59 0.00
93 59 0.00
97 59 0.00
96 60 0.00
100 61 0.00
104 63 0.00
100 62 0.00
91 59 0.00
90 62 0.00
87 60 0.00
86 54 0.00
90 53 0.00
95 55 0.00
100 57 0.00
107 61 0.00
102 55 0.00
90 60 0.00
89 58 0.00
90 55 0.00
89 57 0.00
88 50 0.00
92 54 0.00
91 51 0.00
93 55 0.00
100 56 0.00
98 59 0.00
September 1940 Riverside Weather
Day High (°F) Low (°F) Precip. (inches)
99 60 0.00
96 59 0.00
88 62 0.00
85 55 0.00
85 50 0.00
88 51 0.00
91 52 0.00
98 55 0.00
100 53 0.00
96 51 0.00
96 55 0.00
92 57 0.00
90 51 0.00
90 50 0.00
90 51 0.00
85 50 0.00
91 59 0.00
88 55 0.00
83 59 0.00
83 51 0.00
89 52 0.00
89 55 0.00
86 52 0.00
89 53 0.00
92 51 0.00
102 56 0.00
99 61 0.00
96 50 0.00
89 48 0.00
88 43 0.00
October 1940 Riverside Weather
Day High (°F) Low (°F) Precip. (inches)
91 47 0.00
86 51 0.00
79 49 0.00
80 47 0.00
83 53 0.00
83 46 0.00
96 48 0.00
89 56 0.00
74 52 0.00
80 48 0.00
97 48 0.00
101 50 0.00
102 51 0.00
94 48 0.00
93 49 0.00
98 50 0.00
95 52 0.00
99 55 0.00
104 54 0.00
104 54 0.00
96 49 0.00
89 56 0.00
86 48 0.00
88 51 0.00
78 60 0.00
69 52 0.93
68 43 0.15
67 40 0.00
73 44 0.00
72 42 0.00
75 43 0.00
November 1940 Riverside Weather
Day High (°F) Low (°F) Precip. (inches)
82 43 0.00
85 45 0.00
79 50 0.00
72 n/a 0.00
77 41 0.00
79 37 0.00
83 40 0.00
80 49 0.00
74 53 0.00
68 40 0.00
73 36 0.00
72 39 0.00
83 45 0.00
81 48 0.00
77 51 0.00
85 42 0.00
82 48 0.00
61 50 0.91
65 45 0.00
67 35 0.00
67 36 0.00
57 35 0.00
63 40 0.00
67 32 0.00
69 40 0.00
77 41 0.00
71 36 0.00
77 39 0.00
85 40 0.00
84 39 0.00
December 1940 Riverside Weather
Day High (°F) Low (°F) Precip. (inches)
77 38 0.00
85 43 0.00
88 41 0.00
88 43 0.00
84 42 0.00
79 39 0.00
83 39 0.00
86 40 0.00
88 47 0.00
67 50 0.00
65 50 0.00
60 50 0.06
62 36 0.00
62 44 0.00
60 32 0.00
64 45 0.02
50 47 0.85
58 44 0.30
67 40 0.37
68 44 0.00
73 40 0.00
77 45 0.00
73 50 0.71
58 51 1.08
61 42 1.14
63 35 0.00
70 40 0.00
70 44 0.00
65 49 0.18
64 42 0.11
67 46 0.15
Weather Station Details
Years Station Coordinates
1999–2024 Riverside Municipal Airport location
1893–1998 Riverside Fire Station location