Built 2026-10-18 (18 October 2026)

Alexandria (Bos) Weather Records (SF000366420)

Record envelope, standing records and threshold days for Alexandria (Bos) (SF000366420), South Africa, with 79 years of record.

Key Facts for Alexandria (Bos)

  • Alexandria (Bos) (SF000366420) is a weather station in South Africa at -33.70 latitude and 26.37 longitude, 191 m (627 ft) above sea level.
  • The station reports from 1919 to 1997, 79 years of record.
  • 0 records set at Alexandria (Bos) still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Alexandria (Bos) set a daily record precipitation of 25.0 mm (1.0 in) on 10 June 1997.

About the Station

  • Location: South Africa, -33.70 latitude, 26.37 longitude.
  • Elevation: 191 m (627 ft).
  • Period of record: 1919 to 1997, 79 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Alexandria (Bos), with 2026 drawn through them The band shows the record high and record low for each calendar day at Alexandria (Bos). The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Alexandria (Bos). The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Alexandria (Bos), with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
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Aprn/an/an/an/a
Mayn/an/an/an/a
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Juln/an/an/an/a
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Octn/an/an/an/a
Novn/an/an/an/a
Decn/an/an/an/a

Which Years Hold Standing Records

0 standing records
Standing records at Alexandria (Bos) by the year they were set 0 records at Alexandria (Bos) still stand. 00000000000
0 records at Alexandria (Bos) still stand.
Standing records at Alexandria (Bos) by the year they were set
Year setStanding records

All-Time Record Progression

1 new records
When Alexandria (Bos) set new all-time records 1 all-time records were set at Alexandria (Bos) between 25 September 1952 and 25 September 1952. Each dot is a new record. Record daily precipitation25 September 1952: Record daily precipitation 287.5 mm (11.3 in)
1 all-time records were set at Alexandria (Bos) between 25 September 1952 and 25 September 1952. Each dot is a new record.
When Alexandria (Bos) set new all-time records
DateKindDetail
1952-09-25Record daily precipitationRecord daily precipitation 287.5 mm (11.3 in)

Wettest Day of Each Month

Sep: 287.5 mm (11.3 in)
Record daily precipitation for each month at Alexandria (Bos) The wettest day on record for each calendar month at Alexandria (Bos). The most was 287.5 mm (11.3 in) on 25 September 1952. 0100200300 Jan: 114.6 mm (4.5 in), 1 January 1932 Jan Feb: 102.0 mm (4.0 in), 20 February 1990 Feb Mar: 122.4 mm (4.8 in), 27 March 1928 Mar Apr: 127.0 mm (5.0 in), 3 April 1933 Apr May: 203.2 mm (8.0 in), 16 May 1935 May Jun: 120.7 mm (4.8 in), 20 June 1925 Jun Jul: 158.0 mm (6.2 in), 20 July 1979 Jul Aug: 125.0 mm (4.9 in), 7 August 1992 Aug Sep: 287.5 mm (11.3 in), 25 September 1952 Sep Oct: 212.5 mm (8.4 in), 2 October 1989 Oct Nov: 208.0 mm (8.2 in), 15 November 1989 Nov Dec: 154.3 mm (6.1 in), 6 December 1970 Dec
The wettest day on record for each calendar month at Alexandria (Bos). The most was 287.5 mm (11.3 in) on 25 September 1952.
Record daily precipitation for each month at Alexandria (Bos)
MonthRecord daily precipitation (mm)Date
Jan114.6 mm (4.5 in)1 January 1932
Feb102.0 mm (4.0 in)20 February 1990
Mar122.4 mm (4.8 in)27 March 1928
Apr127.0 mm (5.0 in)3 April 1933
May203.2 mm (8.0 in)16 May 1935
Jun120.7 mm (4.8 in)20 June 1925
Jul158.0 mm (6.2 in)20 July 1979
Aug125.0 mm (4.9 in)7 August 1992
Sep287.5 mm (11.3 in)25 September 1952
Oct212.5 mm (8.4 in)2 October 1989
Nov208.0 mm (8.2 in)15 November 1989
Dec154.3 mm (6.1 in)6 December 1970

Latest Records

20
Latest records at Alexandria (Bos)
DateStationRecordValueBeat old record byOld record stoodSignificance
10 June 1997Alexandria (Bos), ZAdaily rain25.0 mm (1.0 in)4.0 mm (0.16 in)10 years12 of 100 (Routine)
24 February 1997Alexandria (Bos), ZAdaily rain16.0 mm (0.6 in)3.0 mm (0.12 in)11 years12 of 100 (Routine)
21 November 1996Alexandria (Bos), ZAdaily rain39.0 mm (1.5 in)16.1 mm (0.6 in)68 years37 of 100 (Notable)
20 November 1996Alexandria (Bos), ZAdaily rain27.5 mm (1.1 in)3.1 mm (0.12 in)43 years20 of 100 (Routine)
16 November 1996Alexandria (Bos), ZAdaily rain32.4 mm (1.3 in)5.2 mm (0.20 in)47 years24 of 100 (Routine)
19 October 1996Alexandria (Bos), ZAdaily rain46.0 mm (1.8 in)6.0 mm (0.24 in)7 years12 of 100 (Routine)
20 January 1996Alexandria (Bos), ZAdaily rain28.0 mm (1.1 in)5.9 mm (0.23 in)70 years32 of 100 (Routine)
14 January 1995Alexandria (Bos), ZAdaily rain114.5 mm (4.5 in)79.0 mm (3.1 in)9 years49 of 100 (Notable)
27 December 1994Alexandria (Bos), ZAdaily rain101.6 mm (4.0 in)76.2 mm (3.0 in)68 years67 of 100 (Major)
24 December 1994Alexandria (Bos), ZAdaily rain34.0 mm (1.3 in)8.5 mm (0.33 in)9 years15 of 100 (Routine)
9 December 1994Alexandria (Bos), ZAdaily rain46.0 mm (1.8 in)32.5 mm (1.3 in)36 years43 of 100 (Notable)
13 August 1994Alexandria (Bos), ZAdaily rain16.5 mm (0.6 in)1.1 mm (0.04 in)36 years18 of 100 (Routine)
2 August 1994Alexandria (Bos), ZAdaily rain28.0 mm (1.1 in)1.5 mm (0.06 in)36 years19 of 100 (Routine)
10 July 1994Alexandria (Bos), ZAdaily rain31.6 mm (1.2 in)9.1 mm (0.36 in)31 years21 of 100 (Routine)
9 July 1994Alexandria (Bos), ZAdaily rain25.0 mm (1.0 in)7.7 mm (0.30 in)48 years25 of 100 (Routine)
10 January 1994Alexandria (Bos), ZAdaily rain (Tie)33.0 mm (1.3 in)tie0 years1 of 100 (Routine)
4 December 1993Alexandria (Bos), ZAdaily rain56.5 mm (2.2 in)30.3 mm (1.2 in)68 years50 of 100 (Notable)
2 December 1993Alexandria (Bos), ZAdaily rain38.0 mm (1.5 in)2.2 mm (0.09 in)51 years23 of 100 (Routine)
10 November 1993Alexandria (Bos), ZAdaily rain36.0 mm (1.4 in)6.5 mm (0.26 in)52 years26 of 100 (Routine)
23 September 1993Alexandria (Bos), ZAdaily rain31.0 mm (1.2 in)6.5 mm (0.26 in)4 years11 of 100 (Routine)

Extremes by Year

1919 to 1997
Yearly extremes at Alexandria (Bos): the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)287.5 mm (11.3 in)195268.0 mm (2.7 in)79
Wettest five days (Rx5day)334.0 mm (13.1 in)1935111.5 mm (4.4 in)79
Longest dry spell (CDD)47 days197525 days79

Wettest day (Rx1day)

Wettest day (Rx1day) at Alexandria (Bos) by year The wettest day of the year at Alexandria (Bos), 1919 to 1997. The record is 287.5 mm (11.3 in) in 1952, marked on the chart; the median year is 68.0 mm (2.7 in). 01002003001920194019601980Record: 287.5 mm (11.3 in) in 1952
The wettest day of the year at Alexandria (Bos), 1919 to 1997. The record is 287.5 mm (11.3 in) in 1952, marked on the chart; the median year is 68.0 mm (2.7 in).
Wettest day (Rx1day) at Alexandria (Bos) by year
YearWettest day (Rx1day)
191930.7 mm (1.2 in)
192039.4 mm (1.6 in)
192158.4 mm (2.3 in)
192281.5 mm (3.2 in)
192359.9 mm (2.4 in)
192446.5 mm (1.8 in)
1925120.7 mm (4.8 in)
192661.2 mm (2.4 in)
192763.5 mm (2.5 in)
1928122.4 mm (4.8 in)
192980.0 mm (3.1 in)
193061.7 mm (2.4 in)
1931111.8 mm (4.4 in)
1932124.5 mm (4.9 in)
1933127.0 mm (5.0 in)
193466.8 mm (2.6 in)
1935203.2 mm (8.0 in)
193673.7 mm (2.9 in)
193742.2 mm (1.7 in)
193852.8 mm (2.1 in)
193961.0 mm (2.4 in)
194058.4 mm (2.3 in)
1941104.4 mm (4.1 in)
194252.8 mm (2.1 in)
194352.3 mm (2.1 in)
194484.8 mm (3.3 in)
194596.3 mm (3.8 in)
194649.0 mm (1.9 in)
194755.4 mm (2.2 in)
194865.5 mm (2.6 in)
194945.2 mm (1.8 in)
1950122.7 mm (4.8 in)
195158.4 mm (2.3 in)
1952287.5 mm (11.3 in)
1953138.5 mm (5.5 in)
1954172.5 mm (6.8 in)
195541.3 mm (1.6 in)
1956101.0 mm (4.0 in)
195761.0 mm (2.4 in)
195859.0 mm (2.3 in)
195958.0 mm (2.3 in)
196047.5 mm (1.9 in)
196165.0 mm (2.6 in)
1962110.3 mm (4.3 in)
196353.5 mm (2.1 in)
196485.0 mm (3.3 in)
1965101.0 mm (4.0 in)
196651.0 mm (2.0 in)
1967168.5 mm (6.6 in)
196886.5 mm (3.4 in)
196972.0 mm (2.8 in)
1970154.3 mm (6.1 in)
197177.5 mm (3.1 in)
197257.0 mm (2.2 in)
197355.0 mm (2.2 in)
1974108.0 mm (4.3 in)
197575.0 mm (3.0 in)
197676.0 mm (3.0 in)
197765.0 mm (2.6 in)
1978100.5 mm (4.0 in)
1979158.0 mm (6.2 in)
198059.5 mm (2.3 in)
1981108.0 mm (4.3 in)
198246.5 mm (1.8 in)
1983120.0 mm (4.7 in)
198468.0 mm (2.7 in)
198595.0 mm (3.7 in)
198666.5 mm (2.6 in)
198744.4 mm (1.7 in)
198835.0 mm (1.4 in)
1989212.5 mm (8.4 in)
1990102.0 mm (4.0 in)
199141.5 mm (1.6 in)
1992125.0 mm (4.9 in)
199371.0 mm (2.8 in)
1994101.6 mm (4.0 in)
1995114.5 mm (4.5 in)
199646.0 mm (1.8 in)
199740.0 mm (1.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Alexandria (Bos) by year The wettest five days of the year at Alexandria (Bos), 1919 to 1997. The record is 334.0 mm (13.1 in) in 1935, marked on the chart; the median year is 111.5 mm (4.4 in). 01002003004001920194019601980Record: 334.0 mm (13.1 in) in 1935
The wettest five days of the year at Alexandria (Bos), 1919 to 1997. The record is 334.0 mm (13.1 in) in 1935, marked on the chart; the median year is 111.5 mm (4.4 in).
Wettest five days (Rx5day) at Alexandria (Bos) by year
YearWettest five days (Rx5day)
191952.6 mm (2.1 in)
192063.7 mm (2.5 in)
1921131.5 mm (5.2 in)
1922211.8 mm (8.3 in)
192396.5 mm (3.8 in)
192461.5 mm (2.4 in)
1925144.3 mm (5.7 in)
192698.3 mm (3.9 in)
192767.9 mm (2.7 in)
1928206.1 mm (8.1 in)
192997.9 mm (3.9 in)
193063.0 mm (2.5 in)
1931179.1 mm (7.1 in)
1932298.8 mm (11.8 in)
1933189.4 mm (7.5 in)
1934149.1 mm (5.9 in)
1935334.0 mm (13.1 in)
1936134.3 mm (5.3 in)
193783.1 mm (3.3 in)
193874.4 mm (2.9 in)
193998.0 mm (3.9 in)
1940122.4 mm (4.8 in)
1941197.8 mm (7.8 in)
194279.2 mm (3.1 in)
194393.8 mm (3.7 in)
1944105.9 mm (4.2 in)
1945154.0 mm (6.1 in)
1946105.7 mm (4.2 in)
1947116.9 mm (4.6 in)
194886.9 mm (3.4 in)
194996.8 mm (3.8 in)
1950153.7 mm (6.1 in)
1951120.2 mm (4.7 in)
1952307.6 mm (12.1 in)
1953225.5 mm (8.9 in)
1954185.5 mm (7.3 in)
195563.8 mm (2.5 in)
1956123.5 mm (4.9 in)
195778.0 mm (3.1 in)
195897.0 mm (3.8 in)
195983.4 mm (3.3 in)
196069.8 mm (2.7 in)
196196.5 mm (3.8 in)
1962125.4 mm (4.9 in)
196397.0 mm (3.8 in)
1964133.6 mm (5.3 in)
1965132.5 mm (5.2 in)
196666.5 mm (2.6 in)
1967195.0 mm (7.7 in)
1968116.0 mm (4.6 in)
196983.0 mm (3.3 in)
1970262.9 mm (10.4 in)
1971111.5 mm (4.4 in)
197268.0 mm (2.7 in)
197379.0 mm (3.1 in)
1974183.0 mm (7.2 in)
1975211.5 mm (8.3 in)
1976110.0 mm (4.3 in)
1977111.0 mm (4.4 in)
1978112.0 mm (4.4 in)
1979282.0 mm (11.1 in)
1980104.5 mm (4.1 in)
1981218.0 mm (8.6 in)
198266.0 mm (2.6 in)
1983247.0 mm (9.7 in)
198476.0 mm (3.0 in)
1985182.0 mm (7.2 in)
1986103.5 mm (4.1 in)
198760.5 mm (2.4 in)
198867.5 mm (2.7 in)
1989275.5 mm (10.8 in)
1990144.0 mm (5.7 in)
199173.3 mm (2.9 in)
1992175.0 mm (6.9 in)
1993166.5 mm (6.6 in)
1994181.6 mm (7.1 in)
1995123.3 mm (4.9 in)
199680.9 mm (3.2 in)
199774.5 mm (2.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Alexandria (Bos) by year The longest dry spell of the year at Alexandria (Bos), 1919 to 1997. The record is 47 days in 1975, marked on the chart; the median year is 25 days. 10203040501920194019601980Record: 47 days in 1975
The longest dry spell of the year at Alexandria (Bos), 1919 to 1997. The record is 47 days in 1975, marked on the chart; the median year is 25 days.
Longest dry spell (CDD) at Alexandria (Bos) by year
YearLongest dry spell (CDD)
191917 days
192020 days
192116 days
192215 days
192318 days
192423 days
192516 days
192617 days
192744 days
192818 days
192920 days
193013 days
193126 days
193225 days
193322 days
193413 days
193513 days
193625 days
193716 days
193816 days
193922 days
194026 days
194117 days
194212 days
194319 days
194414 days
194533 days
194630 days
194713 days
194818 days
194944 days
195030 days
195120 days
195219 days
195335 days
195425 days
195525 days
195632 days
195725 days
195823 days
195923 days
196024 days
196141 days
196233 days
196318 days
196421 days
196531 days
196622 days
196721 days
196826 days
196931 days
197029 days
197137 days
197235 days
197335 days
197437 days
197547 days
197628 days
197727 days
197817 days
197921 days
198028 days
198125 days
198225 days
198317 days
198430 days
198524 days
198620 days
198727 days
198819 days
198924 days
199027 days
199125 days
199233 days
199326 days
199430 days
199528 days
199638 days
199725 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

75 years, 1921 to 1996

A day with at least 75.1 mm (3.0 in) of rain is expected about once in 2 years. A day with at least 270.5 mm (10.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Alexandria (Bos): the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years75.1 mm (3.0 in)
5 years111.0 mm (4.4 in)
10 years140.3 mm (5.5 in)
25 years184.8 mm (7.3 in)
50 years224.5 mm (8.8 in)
100 years270.5 mm (10.6 in)Longer than the 75 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, 75 years of values from 1921 to 1996.

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: 287.5 mm (11.3 in) in 1952; 212.5 mm (8.4 in) in 1989; 203.2 mm (8.0 in) in 1935.

Download the Data

  • Data for Alexandria (Bos) standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Alexandria (Bos) 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

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