For prior seasons, click here.
Why our “Rainfall Season” is different than that of the National Weather Service
Also see:
-- Historic Woodland Hills Seasonal Rainfall
-- Current Season Rainfall-to-Date - Downtown Los Angeles
-- Current Season Rainfall-to-Date - Beverly Hills
-- Current Season Rainfall-to-Date - Burbank
-- Current Season Rainfall-to-Date - Claremont
-- Current Season Rainfall-to-Date - Hawthorne
-- Current Season Rainfall-to-Date - Lancaster
-- Current Season Rainfall-to-Date - Long Beach
-- Current Season Rainfall-to-Date - Los Angeles International Airport
-- Current Season Rainfall-to-Date - Palmdale
-- Current Season Rainfall-to-Date - Pasadena
-- Current Season Rainfall-to-Date - Sandberg
-- Current Season Rainfall-to-Date - Santa Catalina Island
-- Current Season Rainfall-to-Date - Santa Clarita
-- Current Season Rainfall-to-Date - Santa Fe Dam (San Gabriel Valley)
-- Current Season Rainfall-to-Date - Santa Monica
-- Current Season Rainfall-to-Date - Torrance
-- Current Season Rainfall-to-Date - Van Nuys, Los Angeles
-- Current Season Rainfall-to-Date - Westwood, Los Angeles
-- Current Season Rainfall-to-Date - Whittier
NOTE: When most weather reporting sources cite weather in Los Angeles (without specifying where, exactly, in Los Angeles), these numbers are typically for the Downtown Los Angeles weather station (actually located on the USC campus).
Established in 1949, Pierce College Weather Station in Woodland Hills is one of the oldest unmoved operational cooperative weather stations in the world and one of the first official cooperative weather stations in the United States to independently provide its archived data online. In late March 2020, as California began closing down to deal with the COVID-19 pandemic, the station temporarily discontinued posting online data, making its weather reporting unavailable for a number of months. The station resumed posting weather data online later that year.
How Much Water is One Inch of Rain?
NOTE: All measures here are those officially reported by the National Weather Service (NWS), except when otherwise noted. Typically, NWS reports for this station may be delayed for up to five days. More recent measures (where noted) are provided by the Pierce College Weather Station. These are likely to be revised by later NWS reports, at times significantly.
Rainfall measured in inches
| Date (April) | Rainfall Measured for Day | Month's Cumulative Rainfall Measured |
|---|---|---|
| 5 | 0.06 | 0.06 |
| 13 | 0.27 | 0.33 |
| 14 | 0.80 | 1.13 |
| 15 | 0.01 | 1.14 |
Monthly rainfall totals for previous seasons are found at Monthly Rainfall for Woodland Hills.
Rainfall measured in inches
NOTE: Rainfall normals were updated on May 4, 2021.†
| Month | Rainfall For Month | Rainfall For Season | ||||
|---|---|---|---|---|---|---|
| Measured for Month | Monthly Normal† | Deviation from Monthly Normal | Measured for Season-to-Date | Season Normal-to-Date† | Deviation from Season Normal-to-Date | |
| Jul 2023 | 0.00 | 0.04 | -0.04 | 0.00 | 0.04 | -0.04 |
| Aug 2023 | 4.65 | 0.00 | +4.65 | 4.65 | 0.04 | +4.61 |
| Sep 2023 | 0.14 | 0.09 | +0.05 | 4.79 | 0.13 | +4.66 |
| Oct 2023 | 0.00 | 0.56 | -0.56 | 4.79 | 0.69 | +4.10 |
| Nov 2023 | 0.68 | 0.83 | -0.15 | 5.47 | 1.52 | +3.95 |
| Dec 2023 | 4.55 | 2.66 | +1.89 | 10.02 | 4.18 | +5.84 |
| Month | Rainfall For Month | Rainfall For Season | ||||
| Measured for Month | Monthly Normal† | Deviation from Monthly Normal | Measured for Season-to-Date | Season Normal-to-Date† | Deviation from Season Normal-to-Date | |
| Jan 2024 | 1.63 | 3.73 | -2.10 | 11.65 | 7.91 | +3.74 |
| Feb 2024 | 13.43 | 4.62 | +8.81 | 25.08 | 12.53 | +12.55 |
| Mar 2024 | 4.63 | 2.66 | +1.97 | 29.71 | 15.19 | +14.52 |
| Apr 2024 | -Pending- | 0.80 | --- | -Pending- | 15.99 | --- |
| May 2024 | -Pending- | 0.36 | --- | -Pending- | 16.35 | --- |
| Jun 2024 | -Pending- | 0.06 | --- | -Pending- | 16.41 | --- |
* Final National Weather Service data are incomplete for the month. An update will be made upon the release of all data for the month.
† Normals, reissued every ten years, were updated on May 4, 2021. The latest normals are National Centers For Environmental Information data, used by the National Weather Service, based upon 30-year averages, covering 1991 through 2020. The total season normal for this station is 16.41 inches.
Source: Pierce College Weather Station and National Weather Service Forecast Office, Los Angeles/Oxnard
