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Seasonal Rainfall (Precipitation)

Pasadena, California

For the previous season and all seasons prior, click here.

Visitors to Castle Green Open House, Pasadena

Visitors to a Castle Green Open House in Pasadena on a rainy day. Los Angeles Almanac Photo.

Why our “Rainfall Season” is different than that of the National Weather Service

Also see:
-- Historic Pasadena Seasonal Rainfall

-- Current Season Rainfall-to-Date - Downtown Los Angeles
-- Current Season Rainfall-to-Date - Burbank
-- 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 - 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 - Van Nuys, Los Angeles
-- Current Season Rainfall-to-Date - Westwood, Los Angeles
-- Current Season Rainfall-to-Date - Whittier
-- Current Season Rainfall-to-Date - Woodland Hills, Los Angeles

Rainfall, Precipitation, Weather, Map, Los Angeles County

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).

October 2021 Rainfall-to-Date

Reporting for this station has been lagging for four to six weeks.

Rainfall measured in inches

Date (October) Rainfall Measured for Day Month's Cumulative Rainfall Measured
No rainfall reported thus far by the National Weather Service for this month. Data for this station tends to lag for 4-6 weeks).

2021-2022 Rainfall Season-to-Date

Monthly rainfall totals for previous seasons are found at Monthly Rainfall for Pasadena.

Rainfall measured in inches

NOTE: Rainfall normals were updated on May 4, 2021.

Month Rainfall Measured Season-To-Date Rainfall For Month For Season
Monthly Normal Departure for Month Season-to-Date Normal Departure for Season
Jul 2021 0.17 0.17 0.06 +0.11 0.06 +0.11
Aug 2021 0.00 0.17 0.03 -0.03 0.09 +0.08
Sep 2021 0.00 0.17 0.22 -0.22 0.31 -0.14
Oct 2021 Pending Pending 0.84 Pending 1.15 Pending
Nov 2021 Pending Pending 1.10 Pending 2.25 Pending
Dec 2021 Pending Pending 3.33 Pending 5.58 Pending
Month Rainfall Measured Season-To-Date Rainfall For Month For Season
Monthly Normal Departure for Month Season-to-Date Normal Departure for Season
Jan 2022 Pending Pending 4.51 Pending 10.09 Pending
Feb 2022 Pending Pending 5.16 Pending 15.25 Pending
Mar 2022 Pending Pending 3.03 Pending 18.28 Pending
Apr 2022 Pending Pending 1.11 Pending 19.39 Pending
May 2022 Pending Pending 0.48 Pending 19.87 Pending
Jun 2022 Pending Pending 0.21 Pending 20.08 Pending

† 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 20.08 inches.

* Data for the month are incomplete. An update will be made upon the release of all data for the month.

Source: National Weather Service Forecast Office, Los Angeles/Oxnard