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Built 2026-10-19 (19 October 2026)

Petersburg 3SSW Threshold Days by Year (USC00116760)

6 fixed thresholds counted per year at Petersburg 3SSW (USC00116760): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Petersburg 3SSW Thresholds

  • Petersburg 3SSW: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1998 with 45.
  • Petersburg 3SSW: days with 25 mm (0.98 in) or more of precipitation in 41 years, most in 1942 with 18.
  • Petersburg 3SSW: days with 50 mm (1.97 in) or more of precipitation in 26 years, most in 1942 with 4.
  • Petersburg 3SSW: days with 10 cm (3.9 in) or more of snowfall in 23 years, most in 1951 with 4.
  • 6 fixed thresholds have at least one qualifying day at Petersburg 3SSW.
41 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Petersburg 3SSW Days per year at Petersburg 3SSW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 45 in 1998. 02040601941: 341942: 381943: 271945: 351946: 371947: 351948: 271949: 301950: 251951: 321952: 261953: 231954: 271957: 391959: 291961: 311962: 271973: 311974: 361975: 281976: 221977: 311978: 341980: 271981: 331982: 361983: 291984: 381985: 321987: 201997: 251998: 451999: 232000: 222001: 292002: 312003: 312004: 282005: 252006: 262007: 29194119471952196119761982199720022007
Days per year at Petersburg 3SSW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 45 in 1998.
Days with 10 mm (0.39 in) or more of precipitation per year at Petersburg 3SSW
YearDaysDecade average
19413432.9
19423832.9
19432732.9
19453532.9
19463732.9
19473532.9
19482732.9
19493032.9
19502528.7
19513228.7
19522628.7
19532328.7
19542728.7
19573928.7
19592928.7
19613129
19622729
19733130.3
19743630.3
19752830.3
19762230.3
19773130.3
19783430.3
19802730.7
19813330.7
19823630.7
19832930.7
19843830.7
19853230.7
19872030.7
19972531
19984531
19992331
20002227.6
20012927.6
20023127.6
20033127.6
20042827.6
20052527.6
20062627.6
20072927.6
First to last qualifying date each year at Petersburg 3SSW For each year, a bar from the first to the last day at Petersburg 3SSW meeting 10 mm (0.39 in). 1941: 1 January 1941 to 22 December 19411942: 30 January 1942 to 27 December 19421943: 3 February 1943 to 28 December 19431945: 21 February 1945 to 30 December 19451946: 9 January 1946 to 29 December 19461947: 2 January 1947 to 7 December 19471948: 1 January 1948 to 28 December 19481949: 4 January 1949 to 26 December 19491950: 3 January 1950 to 19 November 19501951: 2 January 1951 to 18 December 19511952: 29 February 1952 to 19 December 19521953: 17 January 1953 to 2 December 19531954: 20 January 1954 to 29 December 19541957: 26 February 1957 to 18 December 19571959: 20 January 1959 to 27 December 19591961: 18 February 1961 to 16 December 19611962: 6 January 1962 to 16 November 19621973: 19 January 1973 to 19 December 19731974: 20 January 1974 to 1 December 19741975: 10 January 1975 to 30 December 19751976: 16 February 1976 to 27 November 19761977: 5 January 1977 to 2 November 19771978: 3 March 1978 to 30 December 19781980: 15 February 1980 to 8 December 19801981: 22 February 1981 to 20 November 19811982: 3 January 1982 to 25 December 19821983: 2 February 1983 to 11 December 19831984: 17 February 1984 to 30 December 19841985: 1 January 1985 to 11 December 19851987: 1 March 1987 to 28 December 19871997: 25 January 1997 to 25 December 19971998: 5 January 1998 to 19 December 19981999: 3 January 1999 to 5 December 19992000: 18 February 2000 to 14 December 20002001: 29 January 2001 to 13 December 20012002: 30 January 2002 to 19 December 20022003: 15 February 2003 to 24 November 20032004: 4 January 2004 to 8 December 20042005: 4 January 2005 to 25 December 20052006: 2 January 2006 to 21 December 20062007: 5 January 2007 to 16 December 20071941194819541974198119972003JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Petersburg 3SSW meeting 10 mm (0.39 in).
First to last qualifying date each year at Petersburg 3SSW
YearFirst dateLast date
19411941-01-011941-12-22
19421942-01-301942-12-27
19431943-02-031943-12-28
19451945-02-211945-12-30
19461946-01-091946-12-29
19471947-01-021947-12-07
19481948-01-011948-12-28
19491949-01-041949-12-26
19501950-01-031950-11-19
19511951-01-021951-12-18
19521952-02-291952-12-19
19531953-01-171953-12-02
19541954-01-201954-12-29
19571957-02-261957-12-18
19591959-01-201959-12-27
19611961-02-181961-12-16
19621962-01-061962-11-16
19731973-01-191973-12-19
19741974-01-201974-12-01
19751975-01-101975-12-30
19761976-02-161976-11-27
19771977-01-051977-11-02
19781978-03-031978-12-30
19801980-02-151980-12-08
19811981-02-221981-11-20
19821982-01-031982-12-25
19831983-02-021983-12-11
19841984-02-171984-12-30
19851985-01-011985-12-11
19871987-03-011987-12-28
19971997-01-251997-12-25
19981998-01-051998-12-19
19991999-01-031999-12-05
20002000-02-182000-12-14
20012001-01-292001-12-13
20022002-01-302002-12-19
20032003-02-152003-11-24
20042004-01-042004-12-08
20052005-01-042005-12-25
20062006-01-022006-12-21
20072007-01-052007-12-16

Every Fixed Threshold

Fixed thresholds at Petersburg 3SSW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4145199829
25 mm (0.98 in): Days with 25 mm or more rain411819427
50 mm (1.97 in): Days with 50 mm or more rain26419421
100 mm (3.94 in): Days with 100 mm or more rain2119611
10 cm (3.9 in): Days with 10 cm or more snowfall23419512
25 cm (9.8 in): Days with 25 cm or more snowfall2120061

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1941.

Download the Data

  • Data for Petersburg 3SSW 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).