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Built 2026-10-19 (19 October 2026)

Rooipoort Threshold Days by Year (SF001963750)

4 fixed thresholds counted per year at Rooipoort (SF001963750): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rooipoort Thresholds

  • Rooipoort: days with 10 mm (0.39 in) or more of precipitation in 70 years, most in 1974 with 21.
  • Rooipoort: days with 25 mm (0.98 in) or more of precipitation in 59 years, most in 1934 with 8.
  • Rooipoort: days with 50 mm (1.97 in) or more of precipitation in 15 years, most in 1974 with 3.
  • Rooipoort: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1915 with 1.
  • 4 fixed thresholds have at least one qualifying day at Rooipoort.
70 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Rooipoort Days per year at Rooipoort with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 21 in 1974. 01020301915: 31916: 41917: 61918: 51920: 71921: 51931: 81932: 61933: 21934: 131935: 121936: 61937: 61938: 81939: 121940: 61941: 131942: 81943: 131944: 51945: 61946: 101947: 91948: 131949: 11950: 151951: 11952: 131953: 71954: 91955: 91956: 61957: 121958: 101959: 71960: 71961: 131962: 51963: 111964: 41965: 51967: 101968: 71969: 51970: 51971: 81972: 71973: 91974: 211975: 141976: 211977: 81978: 71980: 61982: 91983: 121984: 81985: 111986: 31987: 61988: 101989: 61990: 71991: 121992: 61993: 51994: 121995: 71996: 81997: 61915193219391946195319601968197519841991
Days per year at Rooipoort with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 21 in 1974.
Days with 10 mm (0.39 in) or more of precipitation per year at Rooipoort
YearDaysDecade average
191534.5
191644.5
191764.5
191854.5
192076
192156
193188.1
193268.1
193328.1
1934138.1
1935128.1
193668.1
193768.1
193888.1
1939128.1
194068.4
1941138.4
194288.4
1943138.4
194458.4
194568.4
1946108.4
194798.4
1948138.4
194918.4
1950158.9
195118.9
1952138.9
195378.9
195498.9
195598.9
195668.9
1957128.9
1958108.9
195978.9
196077.4
1961137.4
196257.4
1963117.4
196447.4
196557.4
1967107.4
196877.4
196957.4
1970511.1
1971811.1
1972711.1
1973911.1
19742111.1
19751411.1
19762111.1
1977811.1
1978711.1
198067.9
198297.9
1983127.9
198487.9
1985117.9
198637.9
198767.9
1988107.9
198967.9
199077.9
1991127.9
199267.9
199357.9
1994127.9
199577.9
199687.9
199767.9
First to last qualifying date each year at Rooipoort For each year, a bar from the first to the last day at Rooipoort meeting 10 mm (0.39 in). 1915: 17 February 1915 to 29 June 19151916: 3 April 1916 to 26 October 19161917: 2 March 1917 to 14 August 19171918: 12 January 1918 to 9 July 19181920: 30 January 1920 to 29 February 19201921: 30 January 1921 to 10 November 19211931: 16 January 1931 to 31 December 19311932: 29 February 1932 to 11 November 19321933: 12 February 1933 to 26 November 19331934: 23 January 1934 to 24 December 19341935: 5 February 1935 to 18 December 19351936: 26 February 1936 to 18 November 19361937: 19 January 1937 to 26 February 19371938: 24 January 1938 to 15 December 19381939: 30 January 1939 to 4 November 19391940: 18 March 1940 to 9 November 19401941: 5 January 1941 to 26 October 19411942: 23 February 1942 to 11 November 19421943: 23 February 1943 to 31 December 19431944: 13 January 1944 to 21 October 19441945: 6 January 1945 to 12 July 19451946: 23 January 1946 to 21 November 19461947: 28 March 1947 to 30 December 19471948: 22 January 1948 to 15 December 19481949: 3 March 1949 to 3 March 19491950: 24 February 1950 to 23 October 19501951: 15 May 1951 to 15 May 19511952: 4 February 1952 to 24 November 19521953: 16 March 1953 to 12 December 19531954: 18 January 1954 to 1 May 19541955: 19 January 1955 to 18 December 19551956: 8 February 1956 to 6 December 19561957: 23 January 1957 to 9 December 19571958: 8 January 1958 to 26 December 19581959: 24 January 1959 to 3 December 19591960: 24 February 1960 to 30 December 19601961: 27 January 1961 to 30 November 19611962: 19 January 1962 to 18 November 19621963: 4 January 1963 to 8 December 19631964: 11 February 1964 to 4 November 19641965: 30 March 1965 to 20 November 19651967: 9 February 1967 to 23 November 19671968: 12 March 1968 to 17 May 19681969: 24 February 1969 to 23 October 19691970: 5 February 1970 to 24 December 19701971: 8 January 1971 to 1 December 19711972: 8 January 1972 to 13 April 19721973: 17 February 1973 to 23 December 19731974: 10 January 1974 to 18 December 19741975: 30 January 1975 to 18 December 19751976: 5 January 1976 to 3 October 19761977: 28 January 1977 to 1 December 19771978: 7 January 1978 to 15 December 19781980: 27 February 1980 to 24 September 19801982: 20 February 1982 to 4 December 19821983: 1 March 1983 to 28 December 19831984: 19 January 1984 to 27 November 19841985: 7 February 1985 to 19 December 19851986: 19 January 1986 to 26 April 19861987: 21 March 1987 to 21 December 19871988: 16 February 1988 to 27 December 19881989: 5 January 1989 to 28 March 19891990: 14 January 1990 to 27 June 19901991: 20 January 1991 to 6 November 19911992: 29 February 1992 to 8 October 19921993: 27 January 1993 to 18 July 19931994: 8 January 1994 to 5 March 19941995: 10 January 1995 to 17 December 19951996: 24 January 1996 to 24 December 19961997: 16 March 1997 to 28 June 199719151934194319521961197119821991JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Rooipoort meeting 10 mm (0.39 in).
First to last qualifying date each year at Rooipoort
YearFirst dateLast date
19151915-02-171915-06-29
19161916-04-031916-10-26
19171917-03-021917-08-14
19181918-01-121918-07-09
19201920-01-301920-02-29
19211921-01-301921-11-10
19311931-01-161931-12-31
19321932-02-291932-11-11
19331933-02-121933-11-26
19341934-01-231934-12-24
19351935-02-051935-12-18
19361936-02-261936-11-18
19371937-01-191937-02-26
19381938-01-241938-12-15
19391939-01-301939-11-04
19401940-03-181940-11-09
19411941-01-051941-10-26
19421942-02-231942-11-11
19431943-02-231943-12-31
19441944-01-131944-10-21
19451945-01-061945-07-12
19461946-01-231946-11-21
19471947-03-281947-12-30
19481948-01-221948-12-15
19491949-03-031949-03-03
19501950-02-241950-10-23
19511951-05-151951-05-15
19521952-02-041952-11-24
19531953-03-161953-12-12
19541954-01-181954-05-01
19551955-01-191955-12-18
19561956-02-081956-12-06
19571957-01-231957-12-09
19581958-01-081958-12-26
19591959-01-241959-12-03
19601960-02-241960-12-30
19611961-01-271961-11-30
19621962-01-191962-11-18
19631963-01-041963-12-08
19641964-02-111964-11-04
19651965-03-301965-11-20
19671967-02-091967-11-23
19681968-03-121968-05-17
19691969-02-241969-10-23
19701970-02-051970-12-24
19711971-01-081971-12-01
19721972-01-081972-04-13
19731973-02-171973-12-23
19741974-01-101974-12-18
19751975-01-301975-12-18
19761976-01-051976-10-03
19771977-01-281977-12-01
19781978-01-071978-12-15
19801980-02-271980-09-24
19821982-02-201982-12-04
19831983-03-011983-12-28
19841984-01-191984-11-27
19851985-02-071985-12-19
19861986-01-191986-04-26
19871987-03-211987-12-21
19881988-02-161988-12-27
19891989-01-051989-03-28
19901990-01-141990-06-27
19911991-01-201991-11-06
19921992-02-291992-10-08
19931993-01-271993-07-18
19941994-01-081994-03-05
19951995-01-101995-12-17
19961996-01-241996-12-24
19971997-03-161997-06-28

Every Fixed Threshold

Fixed thresholds at Rooipoort
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain702119746
25 mm (0.98 in): Days with 25 mm or more rain59819341
50 mm (1.97 in): Days with 50 mm or more rain15319742
100 mm (3.94 in): Days with 100 mm or more rain2119151

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1915.

Download the Data

  • Data for Rooipoort 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).