August weather in Monrovia, CA
The average temperature in Monrovia in August is °F (°F–°F). Average precipitation: 0.00 inches.
August is a summer month in Monrovia, and is cooler than the annual average of 0°F. Expect about 0 days with precipitation. Daylight averages about 13h 17m.
Avg High
°F
Avg Low
°F
Precipitation
0.00 in
Daylight
13h 17m
August records in Monrovia
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 100.9°F (1920) | 52.0°F (1927) | 0.00 in (1918) |
| August 2 | 102.9°F (1920) | 50.0°F (1927) | 0.03 in (2017) |
| August 3 | 100.0°F (1920) | 50.0°F (1927) | 0.06 in (2014) |
| August 4 | 102.0°F (1920) | 52.0°F (1927) | 0.01 in (1961) |
| August 5 | 102.0°F (1920) | 50.0°F (1924) | 0.00 in (1918) |
| August 6 | 102.0°F (1920) | 50.0°F (1927) | 0.03 in (1990) |
| August 7 | 107.1°F (2012) | 52.0°F (1928) | 0.10 in (1968) |
| August 8 | 107.1°F (2012) | 54.0°F (1927) | 0.05 in (1947) |
| August 9 | 108.0°F (2012) | 55.0°F (1925) | 0.04 in (1936) |
| August 10 | 107.1°F (2012) | 53.1°F (1925) | 0.53 in (1942) |
| August 11 | 107.1°F (2012) | 54.0°F (1925) | 0.06 in (1965) |
| August 12 | 109.0°F (2012) | 53.1°F (1921) | 0.25 in (1972) |
| August 13 | 109.0°F (2012) | 52.0°F (1925) | 0.20 in (1931) |
| August 14 | 109.0°F (2012) | 54.0°F (1927) | 0.06 in (1987) |
| August 15 | 105.1°F (2012) | 54.0°F (1927) | 0.77 in (1984) |
| August 16 | 102.9°F (2014) | 54.0°F (1925) | 0.43 in (1983) |
| August 17 | 106.0°F (2012) | 52.0°F (1925) | 2.45 in (1977) |
| August 18 | 106.0°F (2012) | 55.0°F (1921) | 0.48 in (1945) |
| August 19 | 102.9°F (2012) | 55.0°F (1921) | 0.91 in (1983) |
| August 20 | 104.0°F (2012) | 55.9°F (1924) | 0.62 in (2023) |
| August 21 | 102.0°F (2012) | 53.1°F (1920) | 4.47 in (2023) |
| August 22 | 102.0°F (2013) | 53.1°F (1920) | 0.03 in (1951) |
| August 23 | 104.0°F (2013) | 54.0°F (1924) | 0.75 in (1933) |
| August 24 | 107.1°F (1926) | 54.0°F (1924) | 0.00 in (1918) |
| August 25 | 102.9°F (1926) | 48.9°F (1919) | 0.20 in (1935) |
| August 26 | 104.0°F (2011) | 52.0°F (1924) | 0.40 in (1982) |
| August 27 | 100.9°F (2013) | 53.1°F (1920) | 0.03 in (1972) |
| August 28 | 106.0°F (2011) | 52.0°F (1925) | 0.15 in (1931) |
| August 29 | 105.1°F (2012) | 51.1°F (1925) | 0.00 in (1918) |
| August 30 | 109.0°F (2013) | 53.1°F (1925) | 0.00 in (1918) |
| August 31 | 104.0°F (2012) | 48.9°F (1925) | 0.00 in (1918) |