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Monthly Rainfall by Season

Santa Fe Dam, Irwindale (San Gabriel Valley), California
1993-2022


Also see:
-- Historic Rainfall Seasons Against Average - Santa Fe Dam

-- Monthly Rainfall by Season - Downtown Los Angeles
-- Monthly Rainfall by Season - Burbank
-- Monthly Rainfall by Season - Hawthorne
-- Monthly Rainfall by Season - Lancaster
-- Monthly Rainfall by Season - Long Beach
-- Monthly Rainfall by Season - Los Angeles International Airport
-- Monthly Rainfall by Season - Palmdale
-- Monthly Rainfall by Season - Pasadena
-- Monthly Rainfall by Season - Sandberg
-- Monthly Rainfall by Season - Santa Catalina Island
-- Monthly Rainfall by Season - Santa Clarita
-- Monthly Rainfall by Season - Santa Monica
-- Monthly Rainfall by Season - Van Nuys, Los Angeles
-- Monthly Rainfall by Season - Westwood, Los Angeles
-- Monthly Rainfall by Season - Whittier
-- Monthly Rainfall by Season - Woodland Hills, Los Angeles


Also see our current rainfall season page for this weather station.


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


Quantity is measured in inches. T = Trace amount.

Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
Current Normals* 0.06 0.14 0.14 0.70 1.09 2.55 3.78 3.68 3.28 0.95 0.62 0.08 17.07
2022-2023 0.00 0.00 --- --- --- --- --- --- --- --- --- --- 0.00 (1)
2021-2022 0.27 0.00 0.09 1.06 0.01 9.56 0.12 0.10 1.54 0.36 0.06 0.19 13.36
2020-2021 0.00 0.00 0.00 0.00 0.12 1.70 2.69 0.17 1.57 0.14 0.10 0.00 6.49
2019-2020 0.00 0.00 0.00 0.00 2.73 4.53 0.17 0.15 4.41 3.85 0.27 0.04 15.33
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
2018-2019 0.00 0.00 0.00 0.64 1.80 2.30 6.38 8.29 2.51 0.10 1.19 0.18 23.39
2017-2018 0.00 0.02 0.10 0.02 0.02 0.00 2.33 0.31 4.21 0.01 0.48 0.00 7.50
2016-2017 0.00 0.00 0.00 0.11 0.84 4.99 18.25 3.79 22.37 0.02 1.04 0.00 51.41
2015-2016 1.29 0.00 1.39 0.28 0.42 0.73 4.61 0.66 2.35 0.78 0.95 0.00 13.46
2014-2015 0.00 0.09 0.00 0.07 0.75 4.47 0.70 1.20 0.40 0.41 0.75 0.00 8.84
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
2013-2014 0.00 0.00 0.00 0.06 0.76 0.46 0.09 3.02 0.90 0.41 0.00 0.00 5.70
2012-2013 0.00 0.00 0.00 0.53 1.05 2.91 1.15 0.53 0.52 0.02 0.64 0.00 7.35
2011-2012 0.00 0.07 0.01 1.57 1.63 0.68 0.93 1.19 2.16 2.60 0.07 0.00 10.91
2010-2011 0.00 0.00 0.00 1.62 1.19 11.39 0.81 3.86 2.98 0.01 0.26 0.00 22.12
2009-2010 0.00 2.70 0.00 0.86 0.02 3.15 6.23 5.19 0.74 1.32 0.00 0.00 20.21
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
2008-2009 0.05 0.02 0.00 0.07 1.63 2.30 0.91 5.46 0.36 0.13 0.00 0.04 10.97
2007-2008 0.03 0.00 0.75 0.41 1.07 1.94 9.05 1.40 0.10 0.00 2.79 0.00 17.54
2006-2007 0.00 0.00 0.00 0.01 0.08 0.58 0.41 1.99 0.11 1.33 0.04 0.00 4.55
2005-2006 0.00 0.00 0.23 1.86 0.01 0.95 0.95 3.16 4.03 4.02 0.35 0.00 15.56
2004-2005 0.00 0.00 0.00 7.12 1.71 5.38 12.20 12.36 1.96 0.81 0.44 0.00 41.98
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
2003-2004 0.03 0.00 0.00 0.10 0.47 2.29 0.23 6.19 4.72 0.72 0.00 0.00 14.75
2002-2003 0.00 0.60 0.00 0.02 3.30 3.10 0.00 5.64 4.09 1.66 1.09 0.32 19.82
2001-2002 0.00 ---(2) ---(2) ---(2) ---(2) ---(2) ---(2) ---(2) ---(2) ---(2) ---(2) ---(2) 0.00(3)
2000-2001 ---(2) ---(2) ---(2) ---(2) ---(2) ---(2) ---(2) ---(2) ---(2) 24.30 0.00 0.00 24.30(3)
1999-2000 0.00 0.00 0.00 0.00 0.07 0.41 0.04 ---(2) ---(2) ---(2) ---(2) ---(2) 0.52(3)
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
1998-1999 0.04 0.01 0.00 0.03 1.10 0.45 1.75 0.68 0.96 1.84 0.02 0.00 6.88
1997-1998 0.00 0.00 1.08 0.00 2.51 2.66 3.52 13.57 4.79 0.67 4.32 0.27 33.39
1996-1997 0.00 0.00 0.01 1.37 3.17 4.72 6.89 0.17 0.00 0.00 0.12 16.46 32.91
1995-1996 0.02 0.00 0.00 0.00 0.07 1.11 4.24 7.01 3.18 0.73 0.07 0.00 16.43
1994-1995 0.00 0.00 0.00 0.72 0.84 1.07 13.00 2.21 9.81 0.97 0.06 1.16 29.84
1993-1994 0.00 0.00 0.00 0.07 0.80 1.67 0.65 3.86 2.79 1.22 0.51 0.02 11.59

* Although normals are established by the National Centers For Environmental Information, based upon averages for rainfall seasons 1991 through 2020 (updated May 4, 2021), this station's data only goes back to 1993. NCEI does not provide normals for this station. Consequently, we calculated our own normals from the 27-year period of 1993-2020 (as close to NCEI's normal period), adjusting for outlier amounts of rainfall recorded in June 1997 and April 2001 and missing data for much of 2000 through 2002.

(1) Seasonal rainfall through latest full month.
(2) 26 days or more of data were missing for this month.
(3) Due to one or more months of missing data this season, cumulative numbers cannot reflect a complete season total.

Source: Western Regional Climate Center