Downpour in Los Angeles traffic. Los Angeles Almanac Photo.
See also:
-- Monthly Precipitation (Rainfall) by Season - Downtown Los Angeles
-- Record Wettest & Driest Seasons & Wettest Days - Downtown Los Angeles
-- Total Seasonal Rainfall by Season - Downtown Los Angeles
Measured in inches. Record highs and lows are cumulative amounts measured for that month and year. Single Day records are cumulative amounts measured in a single day.
| Month | Normal 1 | Record High 2 | Record Low 2 | Record Single Day |
|---|---|---|---|---|
| January | 3.29 | 14.94 (1969) | 0.00 (1976) | 5.71 (Jan 26, 1956) |
| February | 3.64 | 13.68 (1998) | 0.00 (1984) | 4.80 (Feb 24,1913) |
| March | 2.23 | 12.36 (1884) | 0.00 (1997) | 5.88 (Mar 2, 1938) |
| April | 0.69 | 7.53 (1926) | 0.00 (2021) | 2.74 (Apr 5, 1926) |
| Month | Normal 1 | Record High 2 | Record Low 2 | Single Day Record |
| May | 0.32 | 3.57 (1921) | 0.00 (2022) | 2.02 (May 8, 1977) |
| June | 0.09 | 1.39 (1884) | 0.00 (2020) | 0.76 (Jun 5, 1993) |
| July | 0.02 | 0.38 (2013) | 0.00 (2022) | 0.60 (Jul 25, 1906) |
| August | 0.00 | 2.99 (2023) | 0.00 (2022) | 2.48 (Aug 20, 2023) |
| Month | Normal 1 | Record High 2 | Record Low 2 | Single Day Record |
| September | 0.13 | 5.67 (1939) | 0.00 (2020) | 3.96 (Sep 23, 1939) |
| October | 0.58 | 6.96 (1889) | 0.00 (2020) | 3.16 (Oct 20, 2004) |
| November | 0.78 | 2.02 (1961) | 0.00 (1992) | 3.85 (Nov 7, 1966) |
| December | 2.48 | 15.80 (1889) | 0.00 (1990) | 5.55 (Dec 28, 2004) |
| Entire Season 3 | 14.25 | 38.18 (1883-1884) | 3.21 (2006-2007) | 5.88 (Mar 2, 1938) |
1) Normals are National Centers For Environmental Information data used by the National Weather Service, based upon a 30-year average for rainfall seasons 1991 through 2020.
2) Record highs and lows are for the period beginning 1877.
3) "Entire Season" normals and records reflect an entire rainfall season (July through June of following year). The record high for a calendar year (January through December) was 40.29 inches in 1884 and record low was 3.60 inches in 2013.
Source: National Weather Service Forecast Office, Los Angeles/Oxnard and National Centers For Environmental Information
