San Jacinto May Weather

Averages and records for weather in San Jacinto, California in the month of May.
Typical San Jacinto May Weather
1991–2020
Average daily high 81.5 °F
Average daily low 52.3 °F
Average monthly precipitation 0.4 inches
Average monthly snow none
Daily chance of precipitation 7.4%
Daily chance of snow 0%
San Jacinto May Weather Records
1893–2024
Highest temperature 110 °F May 29, 1984
Lowest temperature 30 °F May 2, 1939
Highest daily low 72 °F May 7, 1987
Lowest daily high 51 °F May 15, 2015
Hottest average high temperature 93.0 °F 1984
Coldest average high temperature 63.4 °F 1905
Most daily precipitation 2.0 inches May 23, 2008
Most monthly precipitation 3.3 inches 1977
Most daily snow none -
Most monthly snow none -
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
May 1 80.2 50.3 104 32
May 2 80.3 50.5 103 30
May 3 80.4 50.7 106 32
May 4 80.6 50.9 103 34
May 5 80.7 51.0 101 34
May 6 80.8 51.2 103 36
May 7 81.0 51.3 99 36
May 8 81.0 51.4 103 34
May 9 81.1 51.5 104 35
May 10 81.1 51.6 106 34
May 11 81.1 51.7 105 34
May 12 81.1 51.9 103 32
May 13 81.3 52.0 108 36
May 14 81.5 52.0 108 39
May 15 81.7 52.2 103 38
May 16 82.0 52.4 103 35
May 17 82.3 52.5 103 37
May 18 82.5 52.6 104 38
May 19 82.7 52.7 101 39
May 20 82.9 52.8 106 34
May 21 83.2 53.0 109 35
May 22 83.5 53.2 104 36
May 23 83.7 53.3 105 40
May 24 83.8 53.4 105 38
May 25 84.0 53.5 107 37
May 26 84.3 53.7 107 33
May 27 84.4 53.8 106 34
May 28 84.6 54.0 109 40
May 29 84.7 54.1 110 40
May 30 84.9 54.2 105 37
May 31 85.2 54.4 106 41
Weather Station Details
Years Station Coordinates
1978–2024 San Jacinto location
1893–1978 San Jacinto location