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El Niņo Misconceptions!
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California Flooding and El Niņo |
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HMB Strong and Very Strong El Niņos |
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Half Moon Bay Seasonal Rainfall and El Niņo/La Niņa Type |
|
Yrs by % of Normal Categories (7 events) |
|
|
|
Rainfall Season |
Rainfall |
|
% of Normal |
Half Moon Bay |
|
El Niņo/La Niņa Type |
Jul 1 - June 30 |
Amount (in.) |
% of Normal |
|
<50% |
0 |
|
|
1950-1951 |
26.49 |
105% |
|
50-70% |
0 |
|
Weak El Niņo |
1951-1952 |
36.94 |
147% |
|
70-90% |
1 |
|
Weak El Niņo |
1952-1953 |
23.44 |
93% |
|
90-110% |
2 |
|
Weak El Niņo |
1953-1954 |
19.67 |
78% |
|
110-130% |
0 |
|
Weak La Niņa |
1954-1955 |
17.09 |
68% |
|
130-150% |
1 |
|
Moderate La Niņa |
1955-1956 |
34.24 |
136% |
|
>150% |
3 |
|
|
1956-1957 |
23.01 |
92% |
|
Average |
142% |
|
Strong El Niņo |
1957-1958 |
43.61 |
173% |
|
Max % Normal |
213% |
|
|
1958-1959 |
15.35 |
61% |
|
Min % Normal |
78% |
|
|
1959-1960 |
20.07 |
80% |
|
|
|
|
|
1960-1961 |
18.83 |
75% |
|
|
|
|
|
1961-1962 |
22.94 |
91% |
|
|
|
|
|
1962-1963 |
33.08 |
132% |
|
|
|
|
Moderate El Niņo |
1963-1964 |
17.22 |
68% |
|
|
|
|
Weak La Niņa |
1964-1965 |
25.17 |
100% |
|
|
|
|
Strong El Niņo |
1965-1966 |
19.64 |
78% |
|
|
|
|
|
1966-1967 |
35.43 |
141% |
|
|
|
|
|
1967-1968 |
21.22 |
84% |
|
|
|
|
Moderate El Niņo |
1968-1969 |
31.55 |
125% |
|
|
|
|
Weak El Niņo |
1969-1970 |
20.89 |
83% |
|
|
|
|
Weak La Niņa |
1970-1971 |
24.96 |
99% |
|
|
|
|
|
1971-1972 |
13.09 |
52% |
|
|
|
|
Strong El Niņo |
1972-1973 |
34.14 |
136% |
|
|
|
|
Strong La Niņa |
1973-1974 |
37.53 |
149% |
|
|
|
|
Weak La Niņa |
1974-1975 |
24.24 |
96% |
|
|
|
|
Strong La Niņa |
1975-1976 |
13.56 |
54% |
|
|
|
|
Moderate El Niņo |
1976-1977 |
14.88 |
59% |
|
|
|
|
Weak El Niņo |
1977-1978 |
36.17 |
144% |
|
|
|
|
|
1978-1979 |
24.87 |
99% |
|
|
|
|
Weak El Niņo |
1979-1980 |
30.4 |
121% |
|
|
|
|
|
1980-1981 |
18.75 |
75% |
|
|
|
|
|
1981-1982 |
48.28 |
192% |
|
|
|
|
VStrong El Niņo |
1982-1983 |
53.56 |
213% |
|
|
|
|
Weak La Niņa |
1983-1984 |
25.87 |
103% |
|
|
|
|
Weak La Niņa |
1984-1985 |
27.35 |
109% |
|
|
|
|
|
1985-1986 |
30.46 |
121% |
|
|
|
|
Moderate El Niņo |
1986-1987 |
20.61 |
82% |
|
|
|
|
Moderate El Niņo |
1987-1988 |
20.09 |
80% |
|
|
|
|
Strong La Niņa |
1988-1989 |
23.34 |
93% |
|
|
|
|
|
1989-1990 |
17.09 |
68% |
|
|
|
|
|
1990-1991 |
20.03 |
80% |
|
|
|
|
VStrong El Niņo |
1991-1992 |
25.32 |
101% |
|
|
|
|
Weak El Niņo |
1992-1993 |
33.43 |
133% |
|
|
|
|
|
1993-1994 |
17.18 |
68% |
|
|
|
|
Moderate El Niņo |
1994-1995 |
34.76 |
138% |
|
|
|
|
Weak La Niņa |
1995-1996 |
31.8 |
126% |
|
|
|
|
|
1996-1997 |
26.05 |
104% |
|
|
|
|
VStrong El Niņo |
1997-1998 |
50.69 |
202% |
|
|
|
|
Strong La Niņa |
1998-1999 |
29.48 |
117% |
|
|
|
|
Strong La Niņa |
1999-2000 |
31.54 |
125% |
|
|
|
|
Weak La Niņa |
2000-2001 |
22.78 |
91% |
|
|
|
|
|
2001-2002 |
M |
M |
|
|
|
|
Moderate El Niņo |
2002-2003 |
M |
M |
|
|
|
|
|
2003-2004 |
23.15 |
92% |
|
|
|
|
Weak El Niņo |
2004-2005 |
37.83 |
150% |
|
|
|
|
Weak La Niņa |
2005-2006 |
35.58 |
142% |
|
|
|
|
Weak El Niņo |
2006-2007 |
18.29 |
73% |
|
|
|
|
Strong La Niņa |
2007-2008 |
20.65 |
82% |
|
|
|
|
Weak La Niņa |
2008-2009 |
20.74 |
82% |
|
|
|
|
Moderate El Niņo |
2009-2010 |
25.34 |
101% |
|
|
|
|
Strong La Niņa |
2010-2011 |
27.75 |
110% |
|
|
|
|
Weak La Niņa |
2011-2012 |
16.16 |
64% |
|
|
|
|
|
2012-2013 |
18.78 |
75% |
|
|
|
|
|
2013-2014 |
9.44 |
38% |
|
|
|
|
Weak El Niņo |
2014-2015 |
16.45 |
65% |
|
|
|
|
VStrong El Niņo |
2015-2016 |
22.93 |
91% |
|
|
|
|
Moderate La Niņa |
2016-2017 |
37.07 |
147% |
|
|
|
|
Moderate La Niņa |
2017-2018 |
18.62 |
74% |
|
|
|
|
Weak El Niņo |
2018-2019 |
26.17 |
104% |
|
|
|
|
|
2019-2020 |
14.74 |
59% |
|
|
|
|
Moderate La Niņa |
2020-2021 |
11.09 |
44% |
|
|
|
|
Moderate La Niņa |
2021-2022 |
21.92 |
87% |
|
|
|
|
Moderate La Niņa |
2022-2023 |
37.5 |
149% |
|
|
|
|
Moderate El Niņo |
2023-2024 |
28.35 |
113% |
|
|
|
|
Weak La Niņa |
2024-2025 |
18.52 |
74% |
|
|
|
|
Weak La Niņa |
2025-2026 |
25.81 |
103% |
|
|
|
|
|
30-yr normal |
25.14 |
100% |
|
|
|
|
|
Max |
53.56 |
213% |
|
|
|
|
|
Min |
9.44 |
38% |
|
HALF MOON BAY WEATHER PAGE
Courtesy of
Jan Null, CCM
Golden
Gate Weather Services
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