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Monthly Rainfall by Season

Lancaster, California
(William J. Fox Airfield)
1974-2020

Desert Rainbow

Desert rainbow. Photo by Skeeze, courtesy Pixabay.com.

Also see:
Monthly Rainfall by Season - Downtown Los Angeles
Monthly Rainfall by Season - Los Angeles International Airport
Monthly Rainfall by Season - Burbank
Monthly Rainfall by Season - Long Beach
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 Fe Dam (San Gabriel Valley)
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 - Woodland Hills, Los Angeles

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


Quantity is measured in inches

Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
Avg.* 0.13 0.10 0.17 0.35 0.45 1.08 1.48 1.66 1.11 0.33 0.11 0.03 7.08
2019-2020 0.04 T 0.00 0.00 1.35 3.81 Now --- --- --- --- --- 5.20 (1)
2018-2019 0.02 0.00 0.00 T 0.17 1.58 1.97 1.92 1.00 0.05 0.53 T 7.38
2017-2018 T 0.03 0.07 T 0.02 T 0.95 0.17 1.53 0.09 0.00 0.00 2.86
2016-2017 0.00 0.00 0.00 0.18 0.22 1.59 2.47 1.88 0.17 T 0.00 0.00 6.51
2015-2016 2.34 0.00 0.64 0.70 0.22 0.37 1.73 0.03 0.62 0.15 0.00 T 6.80
2014-2015 T 0.03 T 0.14 0.16 2.62 0.96 0.40 0.04 0.01 0.28 0.04 4.68
2013-2014 0.02 T T 0.05 1.45 0.09 0.05 1.82 0.22 0.23 T 0.00 3.93
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
2012-2013 T 0.02 0.02 0.00 0.01 0.11 0.40 0.20 0.35 0.00 0.15 0.00 1.26
2011-2012 0.22 0.00 0.01 0.19 0.57 0.36 0.10 0.31 0.47 0.82 0.00 0.00 3.05
2010-2011 T 0.00 T 1.75 0.53 3.97 ---(2) 1.32 1.69 0.53 0.05 0.02 9.86(3)
2009-2010 0.00 T 0.00 0.01 T 0.88 3.96 1.68 0.28 0.82 T 0.00 7.63
2008-2009 T 0.00 0.02 T 1.55 0.92 0.36 2.38 0.13 0.00 0.02 0.01 5.39
2007-2008 T 0.02 0.20 0.18 0.50 0.09 3.73 0.48 T 0.01 0.07 0.00 5.28
2006-2007 0.02 0.00 0.00 0.09 T 0.34 0.02 0.71 0.19 T 0.00 0.00 1.37
2005-2006 0.16 0.01 0.80 1.77 T 0.19 0.83 1.00 1.02 0.68 0.02 0.00 6.48
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
2004-2005 0.00 0.00 T 1.93 0.15 3.65 5.26 4.71 0.72 0.57 0.50 0.00 17.49
2003-2004 0.11 T T 0.23 0.32 0.57 0.01 1.88 0.23 0.05 0.00 0.00 3.40
2002-2003 0.00 0.00 0.01 0.01 0.66 1.19 T 3.55 0.71 0.96 0.27 0.00 7.36
2001-2002 0.02 0.00 0.00 0.24 0.60 0.63 0.20 0.06 0.30 T 0.02 0.00 2.07
2000-2001 0.00 0.13 0.00 0.32 0.01 T 1.17 3.73 0.66 0.58 T 0.00 6.47
1999-2000 0.95 0.00 T 0.00 0.04 ---(2) ---(2) 1.76 1.12 1.82 0.00 0.08 5.77(3)
1998-1999 0.00 0.16 0.73 T 0.38 0.22 1.35 0.49 T 0.89 T 0.18 4.40
1997-1998 0.02 0.00 0.87 T 0.80 2.25 0.95 6.23 2.85 0.34 0.94 0.00 15.25
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
1996-1997 0.02 T 0.00 0.66 0.45 ---(2) 0.66 0.00 0.00 T T 0.00 1.79(3)
1995-1996 T 0.00 0.00 0.00 T 0.52 0.72 1.61 0.12 0.03 T 0.00 3.00
1994-1995 0.00 0.00 T 0.21 0.36 0.57 5.06 0.17 2.74 0.15 0.02 0.20 9.48
1993-1994 0.00 T 0.00 0.30 0.51 0.58 0.22 1.40 0.64 0.40 0.09 0.00 4.14
1992-1993 0.08 0.00 0.00 0.90 0.00 3.13 7.46 5.96 1.21 0.00 0.00 0.83 19.57
1991-1992 0.13 T 0.09 0.22 T 1.80 1.82 5.81 2.49 0.16 0.05 0.00 12.57
1990-1991 0.00 0.01 T 0.00 0.17 0.07 0.96 ---(2) 4.13 0.03 0.00 0.00 5.37(3)
1989-1990 0.00 0.00 0.19 0.05 0.05 0.00 0.76 0.52 0.15 0.11 0.06 T 1.89
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
1988-1989 0.02 0.47 0.00 0.01 0.13 1.57 0.31 1.59 0.06 0.01 0.23 0.00 4.40
1987-1988 T T 0.14 2.39 1.21 1.27 1.93 0.57 0.18 0.53 0.13 T 8.35
1986-1987 0.16 T T T 0.92 0.55 0.34 0.41 0.69 0.03 0.18 0.24 3.52
1985-1986 T 0.00 0.23 0.14 1.58 0.13 2.00 1.08 1.66 0.07 0.00 0.00 6.89
1984-1985 0.70 T 0.22 T 0.76 5.35 0.28 T 0.12 0.00 0.03 0.00 7.46
1983-1984 0.00 2.35 0.34 0.76 0.83 2.45 T 0.00 0.08 T 0.00 T 6.81
1982-1983 0.00 T 0.41 0.54 2.08 0.62 2.17 2.22 5.56 0.69 0.00 0.00 14.29
1981-1982 0.00 0.00 0.20 0.40 1.61 T 1.26 1.52 3.17 1.60 T T 9.76
Season Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Season Total
1980-1981 T 0.00 0.00 0.00 0.00 0.01 0.96 0.82 3.02 0.08 0.07 0.00 4.96
1979-1980 0.00 0.05 T 0.05 0.26 0.08 2.12 5.71 1.39 0.29 0.28 0.00 10.23
1978-1979 0.20 0.24 0.88 0.13 0.60 0.66 4.57 1.06 3.07 0.00 0.02 0.00 11.43
1977-1978 0.00 1.03 0.00 T 0.08 4.04 2.61 3.97 2.54 0.89 0.00 0.00 15.16
1976-1977 T 0.00 1.28 0.02 0.28 T 2.60 T 0.78 T 1.10 T 6.06
1975-1976 0.01 0.00 0.19 0.23 0.05 T 0.00 1.39 0.69 0.39 0.06 T 3.01
1974-1975 0.71 0.00 T 1.09 T 1.26 T 0.69 1.05 0.62 T 0.00 5.42
1973-1974 ---(2) ---(2) ---(2) ---(2) ---(2) ---(2) ---(2) ---(2) ---(2) ---(2) 0.07 0.00 0.07(3)

* Monthly and season average for period since 1974.
T = Trace amount
(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, accumulated numbers cannot reflect a complete season total.

Source: Western Regional Climate Center