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Seasonal Rainfall (Precipitation)
2020-2021

Pasadena, California

Visitors to Castle Green Open House, Pasadena

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

For monthly rainfall data for previous seasons, see Pasadena Monthly Rainfall Each Season since 1906

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


Also see:
Pasadena Total Seasonal Rainfall Each Season Since 1906

Current Season Rainfall-to-Date - Downtown Los Angeles
Current Season Rainfall-to-Date - Los Angeles International Airport
Current Season Rainfall-to-Date - Burbank
Current Season Rainfall-to-Date - Lancaster
Current Season Rainfall-to-Date - Long Beach
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).

Pasadena
May 2021 Rainfall-to-Date

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

Rainfall measured in inches

Date (May) 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 has recently lagged for 4-6 weeks).


Pasadena
2020-2021 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 2020 0.00 0.00 0.06 -0.06 0.06 -0.06
Aug 2020 0.00 0.00 0.03 -0.03 0.09 -0.09
Sep 2020 0.00 0.00 0.22 -0.22 0.31 -0.31
Oct 2020 0.00 0.00 0.84 -0.84 1.15 -1.15
Nov 2020 0.07 0.07 1.10 -1.03 2.25 -2.18
Dec 2020 1.30 1.37 3.33 -2.03 5.58 -4.21
Month Rainfall Measured Season-To-Date Rainfall For Month For Season
Monthly Normal Departure for Month Season-to-Date Normal Departure for Season
Jan 2021 0.71 2.08 4.51 -3.80 10.09 -8.01
Feb 2021 2.03 4.11 5.16 -3.13 15.25 -11.14
Mar 2021 1.55 5.66 3.03 -1.48 18.28 -12.62
Apr 2021 0.09 5.75 1.11 -1.02 19.39 -13.64
May 2021 Pending Pending 0.48 Pending 19.87 Pending
Jun 2021 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