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Built 2026-10-19 (19 October 2026)

Lathrop San Joaquin Bd Threshold Days by Year (USC00044823)

3 fixed thresholds counted per year at Lathrop San Joaquin Bd (USC00044823): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lathrop San Joaquin Bd Thresholds

  • Lathrop San Joaquin Bd: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1940 with 19.
  • Lathrop San Joaquin Bd: days with 25 mm (0.98 in) or more of precipitation in 23 years, most in 1937 with 3.
  • Lathrop San Joaquin Bd: days with 50 mm (1.97 in) or more of precipitation in 2 years, most in 1909 with 1.
  • 3 fixed thresholds have at least one qualifying day at Lathrop San Joaquin Bd.
41 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Lathrop San Joaquin Bd Days per year at Lathrop San Joaquin Bd with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 19 in 1940. 051015201907: 161909: 141910: 51912: 51913: 71914: 111915: 91916: 131917: 41918: 71919: 51920: 81921: 111922: 131923: 51924: 91925: 91926: 71927: 71928: 81929: 21930: 101931: 81932: 51933: 91934: 71935: 71936: 131937: 131938: 91939: 51940: 191941: 141942: 131943: 51944: 111945: 101946: 71947: 31949: 31950: 18190719141919192419291934193919441950
Days per year at Lathrop San Joaquin Bd with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 19 in 1940.
Days with 10 mm (0.39 in) or more of precipitation per year at Lathrop San Joaquin Bd
YearDaysDecade average
19071615
19091415
191057.3
191257.3
191377.3
1914117.3
191597.3
1916137.3
191747.3
191877.3
191957.3
192087.9
1921117.9
1922137.9
192357.9
192497.9
192597.9
192677.9
192777.9
192887.9
192927.9
1930108.6
193188.6
193258.6
193398.6
193478.6
193578.6
1936138.6
1937138.6
193898.6
193958.6
1940199.4
1941149.4
1942139.4
194359.4
1944119.4
1945109.4
194679.4
194739.4
194939.4
19501818
First to last qualifying date each year at Lathrop San Joaquin Bd For each year, a bar from the first to the last day at Lathrop San Joaquin Bd meeting 10 mm (0.39 in). 1907: 8 January 1907 to 31 December 19071909: 9 January 1909 to 31 December 19091910: 1 January 1910 to 23 March 19101912: 2 January 1912 to 29 October 19121913: 15 January 1913 to 23 December 19131914: 1 January 1914 to 27 December 19141915: 4 January 1915 to 14 December 19151916: 4 January 1916 to 24 December 19161917: 1 January 1917 to 10 November 19171918: 22 February 1918 to 8 December 19181919: 20 January 1919 to 3 December 19191920: 1 March 1920 to 24 December 19201921: 18 January 1921 to 25 December 19211922: 7 January 1922 to 13 December 19221923: 24 January 1923 to 30 November 19231924: 26 January 1924 to 30 December 19241925: 25 January 1925 to 2 December 19251926: 29 January 1926 to 23 November 19261927: 6 January 1927 to 29 December 19271928: 4 February 1928 to 25 December 19281929: 9 June 1929 to 16 December 19291930: 4 January 1930 to 12 October 19301931: 1 January 1931 to 28 December 19311932: 2 January 1932 to 9 February 19321933: 19 January 1933 to 30 December 19331934: 1 January 1934 to 14 December 19341935: 5 January 1935 to 29 December 19351936: 3 January 1936 to 31 December 19361937: 12 January 1937 to 12 December 19371938: 29 January 1938 to 20 December 19381939: 5 January 1939 to 26 March 19391940: 2 January 1940 to 27 December 19401941: 5 January 1941 to 29 December 19411942: 24 January 1942 to 18 December 19421943: 21 January 1943 to 28 April 19431944: 2 January 1944 to 28 December 19441945: 1 February 1945 to 22 December 19451946: 31 January 1946 to 27 December 19461947: 10 March 1947 to 15 November 19471949: 19 January 1949 to 10 November 19491950: 11 January 1950 to 14 December 19501907191519211927193319391945JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Lathrop San Joaquin Bd meeting 10 mm (0.39 in).
First to last qualifying date each year at Lathrop San Joaquin Bd
YearFirst dateLast date
19071907-01-081907-12-31
19091909-01-091909-12-31
19101910-01-011910-03-23
19121912-01-021912-10-29
19131913-01-151913-12-23
19141914-01-011914-12-27
19151915-01-041915-12-14
19161916-01-041916-12-24
19171917-01-011917-11-10
19181918-02-221918-12-08
19191919-01-201919-12-03
19201920-03-011920-12-24
19211921-01-181921-12-25
19221922-01-071922-12-13
19231923-01-241923-11-30
19241924-01-261924-12-30
19251925-01-251925-12-02
19261926-01-291926-11-23
19271927-01-061927-12-29
19281928-02-041928-12-25
19291929-06-091929-12-16
19301930-01-041930-10-12
19311931-01-011931-12-28
19321932-01-021932-02-09
19331933-01-191933-12-30
19341934-01-011934-12-14
19351935-01-051935-12-29
19361936-01-031936-12-31
19371937-01-121937-12-12
19381938-01-291938-12-20
19391939-01-051939-03-26
19401940-01-021940-12-27
19411941-01-051941-12-29
19421942-01-241942-12-18
19431943-01-211943-04-28
19441944-01-021944-12-28
19451945-02-011945-12-22
19461946-01-311946-12-27
19471947-03-101947-11-15
19491949-01-191949-11-10
19501950-01-111950-12-14

Every Fixed Threshold

Fixed thresholds at Lathrop San Joaquin Bd
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4119194018
25 mm (0.98 in): Days with 25 mm or more rain23319371
50 mm (1.97 in): Days with 50 mm or more rain2119091

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1907.

Download the Data

  • Data for Lathrop San Joaquin Bd threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).