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Built 2026-10-19 (19 October 2026)

Rooisloot Threshold Days by Year (SF002250650)

3 fixed thresholds counted per year at Rooisloot (SF002250650): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rooisloot Thresholds

  • Rooisloot: days with 10 mm (0.39 in) or more of precipitation in 57 years, most in 1974 with 26.
  • Rooisloot: days with 25 mm (0.98 in) or more of precipitation in 47 years, most in 1941 with 6.
  • Rooisloot: days with 50 mm (1.97 in) or more of precipitation in 10 years, most in 1973 with 2.
  • 3 fixed thresholds have at least one qualifying day at Rooisloot.
57 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Rooisloot Days per year at Rooisloot with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1974. 01020301937: 21939: 101940: 81941: 111942: 71943: 101944: 71947: 41948: 111949: 11950: 161951: 41952: 61953: 71954: 51955: 41956: 71957: 101958: 91959: 101960: 51961: 71962: 41963: 141964: 91965: 21966: 31967: 71968: 91969: 31970: 71971: 111972: 81973: 81974: 261975: 101976: 121977: 71978: 51979: 81980: 51981: 91982: 51983: 91984: 51985: 81986: 41987: 61988: 121989: 61990: 51991: 181992: 61993: 71994: 41995: 111996: 91937194419521958196419701976198219881994
Days per year at Rooisloot with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1974.
Days with 10 mm (0.39 in) or more of precipitation per year at Rooisloot
YearDaysDecade average
193726
1939106
194087.4
1941117.4
194277.4
1943107.4
194477.4
194747.4
1948117.4
194917.4
1950167.8
195147.8
195267.8
195377.8
195457.8
195547.8
195677.8
1957107.8
195897.8
1959107.8
196056.3
196176.3
196246.3
1963146.3
196496.3
196526.3
196636.3
196776.3
196896.3
196936.3
1970710.2
19711110.2
1972810.2
1973810.2
19742610.2
19751010.2
19761210.2
1977710.2
1978510.2
1979810.2
198056.9
198196.9
198256.9
198396.9
198456.9
198586.9
198646.9
198766.9
1988126.9
198966.9
199058.6
1991188.6
199268.6
199378.6
199448.6
1995118.6
199698.6
First to last qualifying date each year at Rooisloot For each year, a bar from the first to the last day at Rooisloot meeting 10 mm (0.39 in). 1937: 22 January 1937 to 12 April 19371939: 30 January 1939 to 14 December 19391940: 29 January 1940 to 8 November 19401941: 7 January 1941 to 28 September 19411942: 24 February 1942 to 25 November 19421943: 14 March 1943 to 29 November 19431944: 13 January 1944 to 22 October 19441947: 13 January 1947 to 22 October 19471948: 27 February 1948 to 17 November 19481949: 20 March 1949 to 20 March 19491950: 16 February 1950 to 15 September 19501951: 1 January 1951 to 15 May 19511952: 6 February 1952 to 1 November 19521953: 15 March 1953 to 19 December 19531954: 14 March 1954 to 30 April 19541955: 30 January 1955 to 4 December 19551956: 16 January 1956 to 6 December 19561957: 10 January 1957 to 30 December 19571958: 9 January 1958 to 27 December 19581959: 27 January 1959 to 12 December 19591960: 23 January 1960 to 6 May 19601961: 26 January 1961 to 26 November 19611962: 8 February 1962 to 17 November 19621963: 4 January 1963 to 8 December 19631964: 11 February 1964 to 3 December 19641965: 15 April 1965 to 17 July 19651966: 21 January 1966 to 13 October 19661967: 27 January 1967 to 22 November 19671968: 4 March 1968 to 1 December 19681969: 24 February 1969 to 9 April 19691970: 3 February 1970 to 24 December 19701971: 8 January 1971 to 19 November 19711972: 6 January 1972 to 21 April 19721973: 17 February 1973 to 23 December 19731974: 7 January 1974 to 31 October 19741975: 30 January 1975 to 16 December 19751976: 3 January 1976 to 15 April 19761977: 27 January 1977 to 30 November 19771978: 3 January 1978 to 23 September 19781979: 26 February 1979 to 17 November 19791980: 11 March 1980 to 12 December 19801981: 13 February 1981 to 18 October 19811982: 20 February 1982 to 4 December 19821983: 8 April 1983 to 30 December 19831984: 21 February 1984 to 26 November 19841985: 19 February 1985 to 18 December 19851986: 16 January 1986 to 26 April 19861987: 19 July 1987 to 21 December 19871988: 15 February 1988 to 28 December 19881989: 5 January 1989 to 20 March 19891990: 7 February 1990 to 21 April 19901991: 14 January 1991 to 28 October 19911992: 17 February 1992 to 30 October 19921993: 19 February 1993 to 10 November 19931994: 8 January 1994 to 7 February 19941995: 10 January 1995 to 16 December 19951996: 21 January 1996 to 27 December 199619371948195619641972198019881996JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Rooisloot meeting 10 mm (0.39 in).
First to last qualifying date each year at Rooisloot
YearFirst dateLast date
19371937-01-221937-04-12
19391939-01-301939-12-14
19401940-01-291940-11-08
19411941-01-071941-09-28
19421942-02-241942-11-25
19431943-03-141943-11-29
19441944-01-131944-10-22
19471947-01-131947-10-22
19481948-02-271948-11-17
19491949-03-201949-03-20
19501950-02-161950-09-15
19511951-01-011951-05-15
19521952-02-061952-11-01
19531953-03-151953-12-19
19541954-03-141954-04-30
19551955-01-301955-12-04
19561956-01-161956-12-06
19571957-01-101957-12-30
19581958-01-091958-12-27
19591959-01-271959-12-12
19601960-01-231960-05-06
19611961-01-261961-11-26
19621962-02-081962-11-17
19631963-01-041963-12-08
19641964-02-111964-12-03
19651965-04-151965-07-17
19661966-01-211966-10-13
19671967-01-271967-11-22
19681968-03-041968-12-01
19691969-02-241969-04-09
19701970-02-031970-12-24
19711971-01-081971-11-19
19721972-01-061972-04-21
19731973-02-171973-12-23
19741974-01-071974-10-31
19751975-01-301975-12-16
19761976-01-031976-04-15
19771977-01-271977-11-30
19781978-01-031978-09-23
19791979-02-261979-11-17
19801980-03-111980-12-12
19811981-02-131981-10-18
19821982-02-201982-12-04
19831983-04-081983-12-30
19841984-02-211984-11-26
19851985-02-191985-12-18
19861986-01-161986-04-26
19871987-07-191987-12-21
19881988-02-151988-12-28
19891989-01-051989-03-20
19901990-02-071990-04-21
19911991-01-141991-10-28
19921992-02-171992-10-30
19931993-02-191993-11-10
19941994-01-081994-02-07
19951995-01-101995-12-16
19961996-01-211996-12-27

Every Fixed Threshold

Fixed thresholds at Rooisloot
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain572619749
25 mm (0.98 in): Days with 25 mm or more rain47619411
50 mm (1.97 in): Days with 50 mm or more rain10219731

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1937.

Download the Data

  • Data for Rooisloot 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).