May weather in Shasta Lake, CA
The average temperature in Shasta Lake in May is 67.1°F (55.4°F–78.9°F). Average precipitation: 2.93 inches.
May is a spring month in Shasta Lake, and is warmer than the annual average of 63.5°F. Daily temperatures swing about 23.5°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 14h 16m. For travel, May is one of the best months of the year to visit.
Avg High
78.9°F
Avg Low
55.4°F
Precipitation
2.93 in
Daylight
14h 16m
May records in Shasta Lake
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 95.0°F (1947) | 39.0°F (1967) | 1.88 in (1987) |
| May 2 | 96.1°F (1945) | 39.0°F (1964) | 1.10 in (2009) |
| May 3 | 96.1°F (1945) | 35.1°F (1950) | 3.05 in (2009) |
| May 4 | 95.0°F (2017) | 36.0°F (1964) | 1.21 in (2024) |
| May 5 | 97.0°F (1944) | 37.0°F (2024) | 2.70 in (2009) |
| May 6 | 98.1°F (1992) | 37.0°F (1986) | 1.82 in (2023) |
| May 7 | 99.0°F (1987) | 41.0°F (1961) | 1.45 in (1988) |
| May 8 | 93.9°F (1987) | 39.9°F (1952) | 1.14 in (1952) |
| May 9 | 93.9°F (2001) | 36.0°F (2022) | 3.35 in (2005) |
| May 10 | 91.9°F (1958) | 39.9°F (2022) | 1.16 in (1980) |
| May 11 | 93.9°F (2013) | 39.9°F (2022) | 0.99 in (1951) |
| May 12 | 93.9°F (1973) | 39.0°F (1970) | 1.37 in (1998) |
| May 13 | 97.0°F (1976) | 41.0°F (1970) | 2.40 in (1945) |
| May 14 | 95.0°F (1973) | 39.9°F (1968) | 1.12 in (1991) |
| May 15 | 96.1°F (2014) | 39.9°F (1968) | 1.05 in (2000) |
| May 16 | 93.9°F (2024) | 41.0°F (1943) | 2.00 in (2019) |
| May 17 | 95.0°F (1954) | 41.0°F (1974) | 3.98 in (1996) |
| May 18 | 99.0°F (1973) | 39.0°F (1974) | 1.90 in (2005) |
| May 19 | 107.1°F (1973) | 41.0°F (1974) | 2.73 in (2019) |
| May 20 | 99.0°F (1963) | 41.0°F (1948) | 1.30 in (2002) |
| May 21 | 96.1°F (1947) | 42.1°F (1960) | 2.71 in (1986) |
| May 22 | 98.1°F (2000) | 37.9°F (2010) | 1.15 in (2006) |
| May 23 | 99.0°F (2017) | 43.0°F (1953) | 3.59 in (1990) |
| May 24 | 105.1°F (1983) | 39.9°F (1960) | 2.88 in (1960) |
| May 25 | 100.0°F (1943) | 39.0°F (1953) | 1.34 in (1960) |
| May 26 | 99.0°F (1982) | 41.0°F (1953) | 1.55 in (2018) |
| May 27 | 98.1°F (1951) | 42.1°F (1997) | 1.83 in (1990) |
| May 28 | 99.0°F (1983) | 43.0°F (1998) | 2.28 in (1990) |
| May 29 | 98.1°F (1984) | 43.0°F (1985) | 2.40 in (1998) |
| May 30 | 99.0°F (1986) | 45.0°F (1998) | 1.61 in (1949) |
| May 31 | 100.9°F (2021) | 46.0°F (1982) | 2.83 in (1993) |