Built 2026-10-15 (15 October 2026)

Twee Rivieren Weather Records (BC004612080)

Record envelope, standing records and threshold days for Twee Rivieren (BC004612080), Botswana, with 67 years of record.

Key Facts for Twee Rivieren

  • Twee Rivieren (BC004612080) is a weather station in Botswana at -26.47 latitude and 20.62 longitude, 879 m (2,884 ft) above sea level.
  • The station reports from 1960 to 2026, 67 years of record.
  • 1,464 records set at Twee Rivieren still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Twee Rivieren set a daily record precipitation of 2.0 mm (0.08 in) on 30 September 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Botswana, -26.47 latitude, 20.62 longitude.
  • Elevation: 879 m (2,884 ft).
  • Period of record: 1960 to 2026, 67 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

9 days at or beyond a record
Daily record high and record low at Twee Rivieren, with 2026 drawn through them The band shows the record high and record low for each calendar day at Twee Rivieren. The lines show the 2026 daily maximum and minimum. 9 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Twee Rivieren. The lines show the 2026 daily maximum and minimum. 9 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Twee Rivieren, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan45.4 C (113.7 F)10.5 C (50.9 F)41.6 C (106.9 F)15.4 C (59.7 F)
Feb44.6 C (112.3 F)10.0 C (50.0 F)40.7 C (105.3 F)14.7 C (58.5 F)
Mar43.7 C (110.7 F)6.9 C (44.4 F)36.9 C (98.4 F)11.8 C (53.2 F)
Apr38.7 C (101.7 F)0.4 C (32.7 F)33.1 C (91.6 F)6.7 C (44.1 F)
May36.2 C (97.2 F)-6.3 C (20.7 F)31.1 C (88.0 F)1.8 C (35.2 F)
Jun33.0 C (91.4 F)-8.7 C (16.3 F)27.7 C (81.9 F)-0.8 C (30.6 F)
Jul32.8 C (91.0 F)-10.0 C (14.0 F)28.7 C (83.7 F)-2.5 C (27.5 F)
Aug35.8 C (96.4 F)-7.1 C (19.2 F)33.9 C (93.0 F)-0.6 C (30.9 F)
Sep40.7 C (105.3 F)-6.0 C (21.2 F)35.1 C (95.2 F)5.8 C (42.4 F)
Oct44.1 C (111.4 F)1.1 C (34.0 F)38.5 C (101.3 F)12.2 C (54.0 F)
Nov45.6 C (114.1 F)3.7 C (38.7 F)n/an/a
Dec45.9 C (114.6 F)8.9 C (48.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Twee Rivieren by the year they were set 1,464 records at Twee Rivieren still stand. 2024 holds the most, with 103. 0501001501980: 11982: 11983: 21984: 11985: 11986: 11988: 21989: 11990: 11994: 21995: 11996: 21997: 11998: 12003: 12004: 32005: 32007: 592008: 392009: 622010: 642011: 512012: 502013: 822014: 822015: 882016: 732017: 782018: 752019: 832020: 732021: 802022: 552023: 922024: 1032025: 852026: 651980198519901997200520102014201820222026
1,464 records at Twee Rivieren still stand. 2024 holds the most, with 103.
Standing records at Twee Rivieren by the year they were set
Year setStanding records
19801
19821
19832
19841
19851
19861
19882
19891
19901
19942
19951
19962
19971
19981
20031
20043
20053
200759
200839
200962
201064
201151
201250
201382
201482
201588
201673
201778
201875
201983
202073
202180
202255
202392
2024103
202585
202665

Wettest Day of Each Month

Feb: 79.0 mm (3.1 in)
Record daily precipitation for each month at Twee Rivieren The wettest day on record for each calendar month at Twee Rivieren. The most was 79.0 mm (3.1 in) on 9 February 1989. 020406080 Jan: 58.7 mm (2.3 in), 26 January 2010 Jan Feb: 79.0 mm (3.1 in), 9 February 1989 Feb Mar: 53.0 mm (2.1 in), 4 March 1976 Mar Apr: 54.0 mm (2.1 in), 18 April 1967 Apr May: 44.0 mm (1.7 in), 28 May 1967 May Jun: 27.9 mm (1.1 in), 21 June 2022 Jun Jul: 25.2 mm (1.0 in), 24 July 1996 Jul Aug: 19.0 mm (0.7 in), 21 August 1981 Aug Sep: 19.5 mm (0.8 in), 26 September 1977 Sep Oct: 38.0 mm (1.5 in), 11 October 1982 Oct Nov: 48.0 mm (1.9 in), 19 November 1995 Nov Dec: 54.1 mm (2.1 in), 22 December 2020 Dec
The wettest day on record for each calendar month at Twee Rivieren. The most was 79.0 mm (3.1 in) on 9 February 1989.
Record daily precipitation for each month at Twee Rivieren
MonthRecord daily precipitation (mm)Date
Jan58.7 mm (2.3 in)26 January 2010
Feb79.0 mm (3.1 in)9 February 1989
Mar53.0 mm (2.1 in)4 March 1976
Apr54.0 mm (2.1 in)18 April 1967
May44.0 mm (1.7 in)28 May 1967
Jun27.9 mm (1.1 in)21 June 2022
Jul25.2 mm (1.0 in)24 July 1996
Aug19.0 mm (0.7 in)21 August 1981
Sep19.5 mm (0.8 in)26 September 1977
Oct38.0 mm (1.5 in)11 October 1982
Nov48.0 mm (1.9 in)19 November 1995
Dec54.1 mm (2.1 in)22 December 2020

Period of Record Coverage

1982 to 2026
Days with data per year at Twee Rivieren 42 years of record at Twee Rivieren, 1982 to 2026. 35 years have data for under 90 percent of days and are left out of rankings: 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989 and others. 1982: 8 of 365 days1983: 8 of 365 days1984: 9 of 366 days1985: 3 of 365 days1986: 2 of 365 days1987: 10 of 365 days1988: 12 of 366 days1989: 11 of 365 days1990: 6 of 365 days1992: 2 of 366 days1993: 7 of 365 days1994: 18 of 365 days1995: 6 of 365 days1996: 3 of 366 days1997: 5 of 365 days1998: 2 of 365 days1999: 2 of 365 days2001: 1 of 365 days2002: 5 of 365 days2003: 9 of 365 days2004: 21 of 366 days2005: 6 of 365 days2007: 203 of 365 days2008: 260 of 366 days2009: 290 of 365 days2010: 183 of 365 days2011: 262 of 365 days2012: 242 of 366 days2013: 288 of 365 days2014: 343 of 365 days2015: 342 of 365 days2016: 342 of 366 days2017: 342 of 365 days2018: 303 of 365 days2019: 327 of 365 days2020: 336 of 366 days2021: 305 of 365 days2022: 315 of 365 days2023: 333 of 365 days2024: 336 of 366 days2025: 306 of 365 days2026: 264 of 365 days199020102020
42 years of record at Twee Rivieren, 1982 to 2026. 35 years have data for under 90 percent of days and are left out of rankings: 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989 and others.
Days with data per year at Twee Rivieren
YearDays with dataShare of yearComplete
198282%No
198382%No
198492%No
198531%No
198621%No
1987103%No
1988123%No
1989113%No
199062%No
199221%No
199372%No
1994185%No
199562%No
199631%No
199751%No
199821%No
199921%No
200110%No
200251%No
200392%No
2004216%No
200562%No
200720356%No
200826071%No
200929079%No
201018350%No
201126272%No
201224266%No
201328879%No
201434394%Yes
201534294%Yes
201634293%Yes
201734294%Yes
201830383%No
201932790%No
202033692%Yes
202130584%No
202231586%No
202333391%Yes
202433692%Yes
202530684%No
202626472%No

Latest Records

20
Latest records at Twee Rivieren
DateStationRecordValueBeat old record byOld record stoodSignificance
30 September 2026Twee Rivieren, BWdaily rain (Provisional)2.0 mm (0.08 in)2.0 mm (0.08 in)65 years20 of 100 (Routine)
18 September 2026Twee Rivieren, BWdaily rain (Provisional)6.0 mm (0.24 in)5.5 mm (0.22 in)12 years20 of 100 (Routine)
15 September 2026Twee Rivieren, BWdaily rain (Provisional)4.0 mm (0.16 in)3.2 mm (0.13 in)17 years19 of 100 (Routine)
7 September 2026Twee Rivieren, BWdaily rain (Provisional)12.0 mm (0.5 in)12.0 mm (0.5 in)65 years20 of 100 (Routine)
6 September 2026Twee Rivieren, BWdaily rain (Provisional)5.0 mm (0.20 in)4.7 mm (0.19 in)5 years19 of 100 (Routine)
5 September 2026Twee Rivieren, BWdaily rain (Provisional)4.0 mm (0.16 in)3.7 mm (0.15 in)64 years20 of 100 (Routine)
29 September 2024Twee Rivieren, BWdaily rain (Tie)3.0 mm (0.12 in)tie13 years2 of 100 (Routine)
10 January 2024Twee Rivieren, BWdaily rain36.1 mm (1.4 in)18.6 mm (0.7 in)46 years38 of 100 (Notable)
8 January 2024Twee Rivieren, BWdaily rain (Tie)1.0 mm (0.04 in)tie52 years5 of 100 (Routine)
3 August 2022Twee Rivieren, BWdaily rain0.8 mm (0.03 in)0.8 mm (0.03 in)60 years20 of 100 (Routine)
23 June 2022Twee Rivieren, BWdaily rain1.0 mm (0.04 in)1.0 mm (0.04 in)60 years20 of 100 (Routine)
22 June 2022Twee Rivieren, BWdaily rain4.1 mm (0.16 in)1.8 mm (0.07 in)12 years12 of 100 (Routine)
21 June 2022Twee Rivieren, BWmonthly rain27.9 mm (1.1 in)5.4 mm (0.21 in)61 years44 of 100 (Notable)
21 May 2022Twee Rivieren, BWdaily rain2.0 mm (0.08 in)1.0 mm (0.04 in)13 years11 of 100 (Routine)
14 March 2022Twee Rivieren, BWdaily rain50.0 mm (2.0 in)37.5 mm (1.5 in)29 years54 of 100 (Notable)
16 January 2022Twee Rivieren, BWdaily rain29.0 mm (1.1 in)19.5 mm (0.8 in)48 years39 of 100 (Notable)
26 August 2021Twee Rivieren, BWdaily rain7.1 mm (0.28 in)6.1 mm (0.24 in)51 years20 of 100 (Routine)
11 June 2021Twee Rivieren, BWdaily rain0.3 mm (0.01 in)0.3 mm (0.01 in)60 years20 of 100 (Routine)
24 March 2021Twee Rivieren, BWdaily rain49.0 mm (1.9 in)31.0 mm (1.2 in)26 years51 of 100 (Notable)
16 March 2021Twee Rivieren, BWdaily rain33.0 mm (1.3 in)18.0 mm (0.7 in)47 years42 of 100 (Notable)

Extremes by Year

1960 to 2026
Yearly extremes at Twee Rivieren: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)45.9 C (114.6 F)202441.5 C (106.7 F)42
Coldest night (TNn)-10.0 C (14.0 F)2021-3.3 C (26.0 F)44
Wettest day (Rx1day)79.0 mm (3.1 in)198933.0 mm (1.3 in)61
Wettest five days (Rx5day)152.5 mm (6.0 in)198941.2 mm (1.6 in)53
Longest dry spell (CDD)249 days198977 days60

Hottest day (TXx)

Hottest day (TXx) at Twee Rivieren by year The hottest day of the year at Twee Rivieren, 1960 to 2026. The record is 45.9 C (114.6 F) in 2024, marked on the chart; the median year is 41.5 C (106.7 F). 203040501960198020002020Record: 45.9 C (114.6 F) in 2024
The hottest day of the year at Twee Rivieren, 1960 to 2026. The record is 45.9 C (114.6 F) in 2024, marked on the chart; the median year is 41.5 C (106.7 F).
Hottest day (TXx) at Twee Rivieren by year
YearHottest day (TXx)
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
198238.0 C (100.4 F)
198341.4 C (106.5 F)
198439.5 C (103.1 F)
198536.5 C (97.7 F)
198624.0 C (75.2 F)
198737.0 C (98.6 F)
198842.0 C (107.6 F)
198939.0 C (102.2 F)
199040.0 C (104.0 F)
1991n/a
199236.0 C (96.8 F)
199338.5 C (101.3 F)
199437.0 C (98.6 F)
199538.5 C (101.3 F)
199633.0 C (91.4 F)
199737.0 C (98.6 F)
199836.5 C (97.7 F)
199939.6 C (103.3 F)
200136.0 C (96.8 F)
200240.5 C (104.9 F)
200339.5 C (103.1 F)
200440.0 C (104.0 F)
200541.0 C (105.8 F)
200743.1 C (109.6 F)
200841.7 C (107.1 F)
200944.3 C (111.7 F)
201044.5 C (112.1 F)
201142.1 C (107.8 F)
201244.8 C (112.6 F)
201344.6 C (112.3 F)
201442.6 C (108.7 F)
201544.2 C (111.6 F)
201645.6 C (114.1 F)
201742.4 C (108.3 F)
201843.6 C (110.5 F)
201943.6 C (110.5 F)
202042.5 C (108.5 F)
202143.2 C (109.8 F)
202242.4 C (108.3 F)
202344.4 C (111.9 F)
202445.9 C (114.6 F)
202541.8 C (107.2 F)
202641.6 C (106.9 F)

Coldest night (TNn)

Coldest night (TNn) at Twee Rivieren by year The coldest night of the year at Twee Rivieren, 1960 to 2026. The record is -10.0 C (14.0 F) in 2021, marked on the chart; the median year is -3.3 C (26.0 F). -10010201960198020002020Record: -10.0 C (14.0 F) in 2021
The coldest night of the year at Twee Rivieren, 1960 to 2026. The record is -10.0 C (14.0 F) in 2021, marked on the chart; the median year is -3.3 C (26.0 F).
Coldest night (TNn) at Twee Rivieren by year
YearColdest night (TNn)
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980-4.0 C (24.8 F)
1981-1.0 C (30.2 F)
1982-2.9 C (26.8 F)
1983-0.1 C (31.8 F)
19842.5 C (36.5 F)
19852.0 C (35.6 F)
19861.5 C (34.7 F)
19871.6 C (34.9 F)
19881.5 C (34.7 F)
19890.2 C (32.4 F)
199016.2 C (61.2 F)
1991n/a
1992-4.0 C (24.8 F)
19933.5 C (38.3 F)
1994-6.0 C (21.2 F)
199511.5 C (52.7 F)
19969.5 C (49.1 F)
19973.2 C (37.8 F)
19986.0 C (42.8 F)
199919.3 C (66.7 F)
200115.0 C (59.0 F)
200214.0 C (57.2 F)
20031.5 C (34.7 F)
2004-1.5 C (29.3 F)
20052.0 C (35.6 F)
2007-4.5 C (23.9 F)
2008-4.3 C (24.3 F)
2009-6.0 C (21.2 F)
2010-8.7 C (16.3 F)
2011-5.4 C (22.3 F)
2012-6.3 C (20.7 F)
2013-6.3 C (20.7 F)
2014-8.2 C (17.2 F)
2015-6.1 C (21.0 F)
2016-7.2 C (19.0 F)
2017-6.3 C (20.7 F)
2018-7.1 C (19.2 F)
2019-5.3 C (22.5 F)
2020-7.8 C (18.0 F)
2021-10.0 C (14.0 F)
2022-3.8 C (25.2 F)
2023-5.9 C (21.4 F)
2024-5.9 C (21.4 F)
2025-5.4 C (22.3 F)
2026-2.5 C (27.5 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Twee Rivieren by year The wettest day of the year at Twee Rivieren, 1960 to 2026. The record is 79.0 mm (3.1 in) in 1989, marked on the chart; the median year is 33.0 mm (1.3 in). 0204060801960198020002020Record: 79.0 mm (3.1 in) in 1989
The wettest day of the year at Twee Rivieren, 1960 to 2026. The record is 79.0 mm (3.1 in) in 1989, marked on the chart; the median year is 33.0 mm (1.3 in).
Wettest day (Rx1day) at Twee Rivieren by year
YearWettest day (Rx1day)
196037.5 mm (1.5 in)
196131.0 mm (1.2 in)
196257.4 mm (2.3 in)
196328.2 mm (1.1 in)
196431.0 mm (1.2 in)
196533.0 mm (1.3 in)
196638.5 mm (1.5 in)
196754.0 mm (2.1 in)
196820.5 mm (0.8 in)
196951.0 mm (2.0 in)
197014.0 mm (0.6 in)
197139.0 mm (1.5 in)
197243.0 mm (1.7 in)
197328.8 mm (1.1 in)
197454.0 mm (2.1 in)
197543.5 mm (1.7 in)
197660.5 mm (2.4 in)
197729.0 mm (1.1 in)
197831.0 mm (1.2 in)
197920.5 mm (0.8 in)
198021.5 mm (0.8 in)
198154.0 mm (2.1 in)
198238.0 mm (1.5 in)
198327.5 mm (1.1 in)
198413.0 mm (0.5 in)
198516.3 mm (0.6 in)
198640.6 mm (1.6 in)
1987n/a
198841.4 mm (1.6 in)
198979.0 mm (3.1 in)
199019.5 mm (0.8 in)
199153.5 mm (2.1 in)
199248.5 mm (1.9 in)
199337.0 mm (1.5 in)
199444.0 mm (1.7 in)
199548.0 mm (1.9 in)
199652.0 mm (2.0 in)
199716.3 mm (0.6 in)
19980.0 mm (0.00 in)
1999n/a
2001n/a
20023.6 mm (0.14 in)
20033.6 mm (0.14 in)
200419.6 mm (0.8 in)
200523.9 mm (0.9 in)
200718.3 mm (0.7 in)
200813.5 mm (0.5 in)
200942.9 mm (1.7 in)
201058.7 mm (2.3 in)
201131.5 mm (1.2 in)
201236.3 mm (1.4 in)
201339.9 mm (1.6 in)
201421.1 mm (0.8 in)
201522.1 mm (0.9 in)
201629.0 mm (1.1 in)
201745.0 mm (1.8 in)
201830.0 mm (1.2 in)
201916.0 mm (0.6 in)
202054.1 mm (2.1 in)
202149.0 mm (1.9 in)
202250.0 mm (2.0 in)
20233.0 mm (0.12 in)
202436.1 mm (1.4 in)
2025n/a
202612.0 mm (0.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Twee Rivieren by year The wettest five days of the year at Twee Rivieren, 1960 to 2026. The record is 152.5 mm (6.0 in) in 1989, marked on the chart; the median year is 41.2 mm (1.6 in). 0501001502001960198020002020Record: 152.5 mm (6.0 in) in 1989
The wettest five days of the year at Twee Rivieren, 1960 to 2026. The record is 152.5 mm (6.0 in) in 1989, marked on the chart; the median year is 41.2 mm (1.6 in).
Wettest five days (Rx5day) at Twee Rivieren by year
YearWettest five days (Rx5day)
196046.3 mm (1.8 in)
196146.0 mm (1.8 in)
1962101.0 mm (4.0 in)
196341.2 mm (1.6 in)
196431.0 mm (1.2 in)
196566.7 mm (2.6 in)
196669.3 mm (2.7 in)
196763.3 mm (2.5 in)
196833.2 mm (1.3 in)
196963.0 mm (2.5 in)
197035.3 mm (1.4 in)
197140.5 mm (1.6 in)
197265.0 mm (2.6 in)
197330.0 mm (1.2 in)
197482.3 mm (3.2 in)
1975101.0 mm (4.0 in)
197699.7 mm (3.9 in)
197736.7 mm (1.4 in)
197833.0 mm (1.3 in)
197942.5 mm (1.7 in)
198029.3 mm (1.2 in)
198154.5 mm (2.1 in)
198238.0 mm (1.5 in)
198354.0 mm (2.1 in)
198431.8 mm (1.3 in)
198522.5 mm (0.9 in)
198648.2 mm (1.9 in)
1987n/a
1988n/a
1989152.5 mm (6.0 in)
199040.0 mm (1.6 in)
199161.0 mm (2.4 in)
199261.0 mm (2.4 in)
199337.0 mm (1.5 in)
199461.0 mm (2.4 in)
199561.5 mm (2.4 in)
199652.0 mm (2.0 in)
199718.8 mm (0.7 in)
1998n/a
1999n/a
2001n/a
2002n/a
2003n/a
2004n/a
2005n/a
200715.8 mm (0.6 in)
2008n/a
200946.3 mm (1.8 in)
201011.7 mm (0.5 in)
201122.6 mm (0.9 in)
201238.6 mm (1.5 in)
201376.0 mm (3.0 in)
201411.8 mm (0.5 in)
201533.0 mm (1.3 in)
201680.1 mm (3.2 in)
201766.3 mm (2.6 in)
20185.0 mm (0.20 in)
201926.7 mm (1.1 in)
2020n/a
202178.5 mm (3.1 in)
202238.4 mm (1.5 in)
20231.8 mm (0.07 in)
202437.7 mm (1.5 in)
2025n/a
202621.0 mm (0.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Twee Rivieren by year The longest dry spell of the year at Twee Rivieren, 1960 to 2026. The record is 249 days in 1989, marked on the chart; the median year is 77 days. 01002003001960198020002020Record: 249 days in 1989
The longest dry spell of the year at Twee Rivieren, 1960 to 2026. The record is 249 days in 1989, marked on the chart; the median year is 77 days.
Longest dry spell (CDD) at Twee Rivieren by year
YearLongest dry spell (CDD)
196032 days
1961106 days
1962147 days
1963104 days
1964108 days
1965134 days
1966115 days
1967164 days
1968150 days
1969129 days
197068 days
1971115 days
1972187 days
197376 days
1974177 days
1975118 days
197684 days
197776 days
1978194 days
197967 days
1980106 days
1981113 days
1982139 days
1983112 days
1984157 days
1985207 days
1986112 days
1987n/a
1988n/a
1989249 days
1990200 days
1991179 days
1992195 days
1993155 days
199462 days
1995172 days
199678 days
1997142 days
19981 day
1999n/a
2001n/a
20021 day
20031 day
20042 days
20051 day
20072 days
20082 days
20093 days
20102 days
20114 days
20123 days
20133 days
20144 days
20153 days
20162 days
20173 days
20184 days
20194 days
20203 days
20214 days
20223 days
20235 days
20243 days
2025n/a
202621 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

34 years, 1961 to 1997

A day with at least 36.4 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 78.0 mm (3.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Twee Rivieren: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years36.4 mm (1.4 in)
5 years50.7 mm (2.0 in)
10 years58.7 mm (2.3 in)
25 years67.5 mm (2.7 in)
50 years73.1 mm (2.9 in)Longer than the 34 years of record
100 years78.0 mm (3.1 in)Longer than the 34 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 34 years of values from 1961 to 1997.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 79.0 mm (3.1 in) in 1989; 60.5 mm (2.4 in) in 1976; 57.4 mm (2.3 in) in 1962.

Download the Data

  • Data for Twee Rivieren standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Twee Rivieren 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-14).