1 & 2-Day SF Bay Area April Rainfall Records - Golden Gate Weather Services

1 & 2-Day SF Bay Area April Rainfall Records

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1 and 2 Day SF Bay Area April Rainfall Records

One Day Record

Two Day Record

Name

Rain (in.)

Date

Rain (in.)

Date

Since

ALAMEDA COUNTY

BERKELEY

2.49

1896-04-24

4.04

1958-04-02

1893

FREMONT

0.96

2003-04-13

1.62

2003-04-13

1996

HAYWARD AIR TERMINAL

0.98

2012-04-10

1.65

2003-04-13

1998

LIVERMORE

1.80

1958-04-03

2.10

1958-04-04

1903

LIVERMORE MUNICIPAL AP

1.14

2003-04-12

1.79

2003-04-13

1998

NEWARK

1.41

2003-04-13

1.46

2003-04-14

1906

OAKLAND INTL AP

2.03

1974-04-01

2.24

2012-04-13

1948

OAKLAND MUSEUM

2.07

1974-04-01

2.10

1974-04-02

1970

TRACY PUMPING PLANT

1.10

1983-04-28

1.70

1983-04-28

1955

UPPER SAN LEANDRO FILTERS

2.20

1974-04-02

3.12

1974-04-02

1948

CONTRA COSTA COUNTY

CONCORD BUCHANAN FIELD

0.97

2012-04-12

1.54

2017-04-07

1999

CONCORD WASTEWATER PLANT

1.20

2017-04-07

1.91

2017-04-08

1991

MARTINEZ WATER PLANT

1.50

2003-04-13

1.81

2017-04-08

1970

MOUNT DIABLO JUNCTION

2.35

1958-04-03

2.90

1958-04-04+

1952

RICHMOND

2.32

1953-04-27

2.48

1982-04-11

1950

MARIN COUNTY

KENTFIELD

4.95

1935-04-07

5.31

1935-04-08

1902

SAN RAFAEL-CIVIC CENTER

4.39

1896-04-25

5.24

1958-04-02

1894

MONTEREY COUNTY

BIG SUR STATION

4.50

1982-04-11

6.37

1982-04-11

1915

CARMEL VALLEY

1.60

2006-04-05

2.27

2006-04-05

1959

KING CITY

1.58

1982-04-10

2.25

1912-04-10

1902

MONTEREY

2.11

1974-04-01

2.36

1912-04-11

1906

MONTEREY PENINSUL AP

1.23

1969-04-05

1.47

1969-04-06

1968

MONTEREY WFO

1.45

2006-04-04

1.68

2006-04-04

1995

SALINAS AP

2.15

1974-04-01

2.15

1974-04-02

1930

SALINAS NO. 2

2.09

1974-04-01

2.58

1974-04-02

1958

NAPA COUNTY

ANGWIN PACIFIC UNION COL

3.08

1982-04-11

3.82

1982-04-11+

1940

CALISTOGA

2.65

1911-04-05

5.26

1996-04-02

1906

MARKLEY COVE

2.64

1982-04-11

2.94

1982-04-12

1970

NAPA COUNTY AIRPORT

1.07

2017-04-06

1.85

2017-04-07

1998

NAPA STATE HOSPITAL

2.66

1996-04-01

3.23

1958-04-03

1893

SAINT HELENA

3.52

1927-04-01

5.64

1926-04-05

1907

SAINT HELENA 4 WSW

2.20

2010-04-12

2.88

2017-04-08+

1948

SAN BENITO COUNTY

HOLLISTER 2

1.43

1981-04-19

1.63

1981-04-20

1948

PANOCHE 2 W

1.14

1958-04-03

1.24

1957-04-18

1949

PINNACLES NM

2.17

1958-04-03

2.39

1958-04-04

1937

SAN FRANCISCO COUNTY

SAN FRANCISCO DOWNTOWN

3.45

1853-04-16

3.59

1853-04-17

1849

SAN FRANCISCO OCEANSIDE

1.45

1978-04-15

1.50

1978-04-16

1948

SAN MATEO COUNTY

HALF MOON BAY

2.36

1941-04-04

2.54

1953-04-27

1939

REDWOOD CITY

2.54

1958-04-02

3.90

1958-04-02

1906

SAN FRANCISCO INTL AP

2.30

1958-04-02

3.21

1958-04-02

1945

SKYLINE RIDGE PRESERVE

2.75

2003-04-13

2.96

2003-04-13

1995

SANTA CLARA COUNTY

GILROY

3.65

1958-04-03

4.07

1958-04-04

1906

LOS GATOS

3.70

1901-04-29

5.89

1958-04-02

1893

MOFFETT FEDERAL AIRFIELD

1.17

1958-04-02

1.73

1983-04-28

1945

MOUNT HAMILTON

1.87

1965-04-09

3.38

1965-04-10

1948

SAN JOSE

1.46

1983-04-28

2.06

2006-04-04

1893

BEN LOMOND NO. 4

5.35

1941-04-04

7.15

1958-04-02

1937

SANTA CRUZ

3.75

1923-04-04

4.05

1923-04-05

1893

WATSONVILLE MUNICIPAL AP

1.51

2006-04-04

2.24

2012-04-13

1945

WATSONVILLE WATERWORKS

2.85

1983-04-28

3.15

1983-04-29

1908

SONOMA COUNTY

BODEGA 6 WSW

2.28

2010-04-11

2.42

2010-04-12

2008

CLOVERDALE

2.80

1982-04-11

4.20

2010-04-12

1950

FORT ROSS

4.23

1953-04-27

5.36

1953-04-27

1895

GRATON

4.00

1953-04-27

4.61

1926-04-05

1926

HEALDSBURG

3.25

1953-04-27

4.57

1927-04-02

1893

OCCIDENTAL

5.20

1953-04-27

5.49

1953-04-28

1943

PETALUMA AIRPORT

2.45

1941-04-04

4.40

1926-04-05

1893

SANTA ROSA

3.06

1926-04-04

5.99

1926-04-05

1902

SANTA ROSA SONOMA CO AP

2.36

2017-04-06

2.77

2017-04-07

1998

VENADO

4.68

2006-04-12

5.29

2017-04-08

1948

Jan Null, CCM
Certified Consulting Meteorologist
Golden Gate Weather Services
Phone: (408) 379-7500
Email: jnull@ggweather.com
Web: http://ggweather.com
Twitter: https://twitter.com/ggweather
Facebook: https://www.facebook.com/Golden-Gate-Weather-Services-151100414926621/

Jan Null

Jan Null has been a meteorologist in the San Francisco Bay Area for 50 years and is frequently seen on television and heard on the radio when weather is in the news. Twenty-six years ago he founded a consulting firm, Golden Gate Weather Services, after a 24-year career with the National Weather Service. Mr. Null is a Bay Area native, having grown up in Oakland and lived in the East Bay until 2006 when he moved to Saratoga. He received a Bachelor of Science degree in Atmospheric Science from UC Davis in 1974 and his Master’s from San Jose State in 1992. Jan joined the National Weather Service in 1974 at the Weather Service Forecast Office in Redwood City. He worked as an operational forecaster throughout his career, including 13 years as Lead Forecaster. During his tenure at the NWS he also served as Meteorologist-in-Charge at the Center Weather Service Unit at the FAA’s Air Traffic Control Center in Fremont. He also did extensive research into the relationship between El Niño, La Niña and California rainfall and throughout his career he was a frequent media spokesperson for the agency. Jan has also been an Adjunct Professor and Lecturer at San Francisco and San Jose State Universities where he taught one evening a week for nearly 30 years. In 1998, Jan founded Golden Gate Weather Services, a consulting firm that specializes in forensic meteorology. He frequently serves as an expert witness in litigation where the weather is a factor. This often involves reconstructing past weather events or as his wife refers to it: “CSI Weather”. Mr. Null is also an internationally recognized expert of the sad topic of the heatstroke deaths of children in vehicles. After the death of a child left a vehicle in San Jose in 2001 he did a comprehensive study of vehicle temperatures that was ultimately published in Pediatrics in 2005. Since that time he has spoken at numerous national conferences and worked with a wide variety of child safety advocacy groups and agencies to raise awareness about the dozens of children who die from hyperthermia in hot vehicles each year. This data continues to be updated at NOHeatstroke.org. In his spare time he is a serious amateur photographer, specializing in wildlife and landscapes. Jan is married to Susan Hollis, a lifelong Saratoga resident and Realtor. He has two adult children in the Bay Area and the world’s most adorable 9-year old granddaughter and 4-year grandson.

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