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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Eureka Weather Records (SF001820130)

Record envelope, standing records and threshold days for Eureka (SF001820130), South Africa, with 62 years of record.

Key Facts for Eureka

  • Eureka (SF001820130) is a weather station in South Africa at -30.73 latitude and 30.00 longitude, 732 m (2,402 ft) above sea level.
  • The station reports from 1936 to 1997, 62 years of record.
  • 0 records set at Eureka still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Eureka set a daily record precipitation of 26.0 mm (1.0 in) on 25 November 1997.

About the Station

  • Location: South Africa, -30.73 latitude, 30.00 longitude.
  • Elevation: 732 m (2,402 ft).
  • Period of record: 1936 to 1997, 62 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Eureka, with 2026 drawn through them The band shows the record high and record low for each calendar day at Eureka. 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 Eureka. 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 Eureka, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
Febn/an/an/an/a
Marn/an/an/an/a
Aprn/an/an/an/a
Mayn/an/an/an/a
Junn/an/an/an/a
Juln/an/an/an/a
Augn/an/an/an/a
Sepn/an/an/an/a
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 Eureka by the year they were set 0 records at Eureka still stand. 00000000000
0 records at Eureka still stand.
Standing records at Eureka by the year they were set
Year setStanding records

Wettest Day of Each Month

May: 295.0 mm (11.6 in)
Record daily precipitation for each month at Eureka The wettest day on record for each calendar month at Eureka. The most was 295.0 mm (11.6 in) on 17 May 1959. 0100200300 Jan: 86.0 mm (3.4 in), 13 January 1995 Jan Feb: 205.5 mm (8.1 in), 9 February 1985 Feb Mar: 141.0 mm (5.6 in), 20 March 1976 Mar Apr: 128.5 mm (5.1 in), 22 April 1978 Apr May: 295.0 mm (11.6 in), 17 May 1959 May Jun: 150.0 mm (5.9 in), 19 June 1964 Jun Jul: 154.0 mm (6.1 in), 7 July 1996 Jul Aug: 91.5 mm (3.6 in), 29 August 1986 Aug Sep: 140.0 mm (5.5 in), 15 September 1988 Sep Oct: 121.0 mm (4.8 in), 30 October 1985 Oct Nov: 91.7 mm (3.6 in), 26 November 1947 Nov Dec: 81.5 mm (3.2 in), 12 December 1963 Dec
The wettest day on record for each calendar month at Eureka. The most was 295.0 mm (11.6 in) on 17 May 1959.
Record daily precipitation for each month at Eureka
MonthRecord daily precipitation (mm)Date
Jan86.0 mm (3.4 in)13 January 1995
Feb205.5 mm (8.1 in)9 February 1985
Mar141.0 mm (5.6 in)20 March 1976
Apr128.5 mm (5.1 in)22 April 1978
May295.0 mm (11.6 in)17 May 1959
Jun150.0 mm (5.9 in)19 June 1964
Jul154.0 mm (6.1 in)7 July 1996
Aug91.5 mm (3.6 in)29 August 1986
Sep140.0 mm (5.5 in)15 September 1988
Oct121.0 mm (4.8 in)30 October 1985
Nov91.7 mm (3.6 in)26 November 1947
Dec81.5 mm (3.2 in)12 December 1963

Latest Records

20
Latest records at Eureka
DateStationRecordValueBeat old record byOld record stoodSignificance
25 November 1997Eureka, ZAdaily rain26.0 mm (1.0 in)3.0 mm (0.12 in)22 years15 of 100 (Routine)
6 September 1997Eureka, ZAdaily rain (Tie)6.0 mm (0.24 in)tie16 years2 of 100 (Routine)
30 August 1997Eureka, ZAdaily rain27.0 mm (1.1 in)3.0 mm (0.12 in)11 years11 of 100 (Routine)
26 July 1997Eureka, ZAdaily rain19.0 mm (0.7 in)15.5 mm (0.6 in)24 years20 of 100 (Routine)
16 July 1997Eureka, ZAdaily rain (Tie)4.0 mm (0.16 in)tie8 years2 of 100 (Routine)
28 June 1997Eureka, ZAdaily rain26.5 mm (1.0 in)13.1 mm (0.5 in)42 years24 of 100 (Routine)
12 June 1997Eureka, ZAdaily rain134.0 mm (5.3 in)115.5 mm (4.5 in)23 years52 of 100 (Notable)
11 June 1997Eureka, ZAdaily rain10.0 mm (0.4 in)1.5 mm (0.06 in)10 years9 of 100 (Routine)
29 May 1997Eureka, ZAdaily rain15.0 mm (0.6 in)7.5 mm (0.30 in)12 years11 of 100 (Routine)
31 March 1997Eureka, ZAdaily rain99.0 mm (3.9 in)61.0 mm (2.4 in)36 years57 of 100 (Notable)
3 January 1997Eureka, ZAdaily rain31.0 mm (1.2 in)9.2 mm (0.36 in)57 years32 of 100 (Routine)
5 November 1996Eureka, ZAdaily rain35.0 mm (1.4 in)14.0 mm (0.6 in)37 years31 of 100 (Routine)
7 July 1996Eureka, ZAmonthly rain154.0 mm (6.1 in)95.0 mm (3.7 in)1 year56 of 100 (Notable)
6 July 1996Eureka, ZAdaily rain20.0 mm (0.8 in)19.4 mm (0.8 in)28 years20 of 100 (Routine)
22 January 1996Eureka, ZAdaily rain44.0 mm (1.7 in)23.2 mm (0.9 in)52 years44 of 100 (Notable)
21 December 1995Eureka, ZAdaily rain43.0 mm (1.7 in)16.8 mm (0.7 in)57 years40 of 100 (Notable)
16 December 1995Eureka, ZAdaily rain28.0 mm (1.1 in)2.6 mm (0.10 in)46 years22 of 100 (Routine)
22 November 1995Eureka, ZAdaily rain18.0 mm (0.7 in)6.5 mm (0.26 in)21 years18 of 100 (Routine)
4 August 1995Eureka, ZAdaily rain11.0 mm (0.4 in)2.5 mm (0.10 in)21 years14 of 100 (Routine)
16 June 1995Eureka, ZAdaily rain63.0 mm (2.5 in)9.0 mm (0.35 in)29 years18 of 100 (Routine)

Extremes by Year

1936 to 1997
Yearly extremes at Eureka: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)295.0 mm (11.6 in)195958.5 mm (2.3 in)62
Wettest five days (Rx5day)471.5 mm (18.6 in)1987104.0 mm (4.1 in)62
Longest dry spell (CDD)110 days199150 days62

Wettest day (Rx1day)

Wettest day (Rx1day) at Eureka by year The wettest day of the year at Eureka, 1936 to 1997. The record is 295.0 mm (11.6 in) in 1959, marked on the chart; the median year is 58.5 mm (2.3 in). 0100200300194019601980Record: 295.0 mm (11.6 in) in 1959
The wettest day of the year at Eureka, 1936 to 1997. The record is 295.0 mm (11.6 in) in 1959, marked on the chart; the median year is 58.5 mm (2.3 in).
Wettest day (Rx1day) at Eureka by year
YearWettest day (Rx1day)
193655.9 mm (2.2 in)
193734.0 mm (1.3 in)
193848.3 mm (1.9 in)
193943.9 mm (1.7 in)
194068.6 mm (2.7 in)
194131.0 mm (1.2 in)
194269.9 mm (2.8 in)
194359.9 mm (2.4 in)
194430.7 mm (1.2 in)
194556.9 mm (2.2 in)
194627.9 mm (1.1 in)
194791.7 mm (3.6 in)
194847.8 mm (1.9 in)
194935.3 mm (1.4 in)
195046.5 mm (1.8 in)
195143.7 mm (1.7 in)
195247.5 mm (1.9 in)
195340.5 mm (1.6 in)
195473.5 mm (2.9 in)
195535.7 mm (1.4 in)
195632.5 mm (1.3 in)
195754.9 mm (2.2 in)
195860.5 mm (2.4 in)
1959295.0 mm (11.6 in)
196038.0 mm (1.5 in)
196173.5 mm (2.9 in)
196241.0 mm (1.6 in)
196381.5 mm (3.2 in)
1964150.0 mm (5.9 in)
196554.0 mm (2.1 in)
1966135.0 mm (5.3 in)
196758.0 mm (2.3 in)
196841.0 mm (1.6 in)
196941.0 mm (1.6 in)
197072.0 mm (2.8 in)
197176.0 mm (3.0 in)
197266.3 mm (2.6 in)
197325.5 mm (1.0 in)
197461.0 mm (2.4 in)
197567.0 mm (2.6 in)
1976141.0 mm (5.6 in)
197759.0 mm (2.3 in)
1978128.5 mm (5.1 in)
197953.0 mm (2.1 in)
1980120.0 mm (4.7 in)
198156.5 mm (2.2 in)
198254.0 mm (2.1 in)
198341.0 mm (1.6 in)
198486.5 mm (3.4 in)
1985205.5 mm (8.1 in)
198691.5 mm (3.6 in)
1987136.0 mm (5.4 in)
1988140.0 mm (5.5 in)
1989125.0 mm (4.9 in)
199052.0 mm (2.0 in)
199142.5 mm (1.7 in)
199237.0 mm (1.5 in)
199360.0 mm (2.4 in)
199466.0 mm (2.6 in)
199586.0 mm (3.4 in)
1996154.0 mm (6.1 in)
1997134.0 mm (5.3 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Eureka by year The wettest five days of the year at Eureka, 1936 to 1997. The record is 471.5 mm (18.6 in) in 1987, marked on the chart; the median year is 104.0 mm (4.1 in). 0200400600194019601980Record: 471.5 mm (18.6 in) in 1987
The wettest five days of the year at Eureka, 1936 to 1997. The record is 471.5 mm (18.6 in) in 1987, marked on the chart; the median year is 104.0 mm (4.1 in).
Wettest five days (Rx5day) at Eureka by year
YearWettest five days (Rx5day)
1936168.6 mm (6.6 in)
193751.6 mm (2.0 in)
193875.7 mm (3.0 in)
193962.4 mm (2.5 in)
1940126.0 mm (5.0 in)
194165.3 mm (2.6 in)
194277.8 mm (3.1 in)
1943125.7 mm (4.9 in)
194470.6 mm (2.8 in)
1945112.3 mm (4.4 in)
194667.9 mm (2.7 in)
1947121.2 mm (4.8 in)
1948110.5 mm (4.4 in)
194947.1 mm (1.9 in)
195081.1 mm (3.2 in)
195166.1 mm (2.6 in)
195255.8 mm (2.2 in)
195352.5 mm (2.1 in)
195473.5 mm (2.9 in)
1955111.2 mm (4.4 in)
1956105.0 mm (4.1 in)
195779.1 mm (3.1 in)
1958104.0 mm (4.1 in)
1959364.0 mm (14.3 in)
196052.0 mm (2.0 in)
1961121.5 mm (4.8 in)
196261.8 mm (2.4 in)
1963148.5 mm (5.8 in)
1964159.5 mm (6.3 in)
1965120.0 mm (4.7 in)
1966163.3 mm (6.4 in)
1967115.5 mm (4.5 in)
196864.0 mm (2.5 in)
1969102.5 mm (4.0 in)
1970118.3 mm (4.7 in)
197182.0 mm (3.2 in)
1972112.8 mm (4.4 in)
197363.1 mm (2.5 in)
197467.0 mm (2.6 in)
197597.0 mm (3.8 in)
1976261.5 mm (10.3 in)
197773.0 mm (2.9 in)
1978294.0 mm (11.6 in)
197957.0 mm (2.2 in)
1980133.5 mm (5.3 in)
198177.5 mm (3.1 in)
198279.0 mm (3.1 in)
198354.5 mm (2.1 in)
1984146.0 mm (5.7 in)
1985288.0 mm (11.3 in)
1986129.5 mm (5.1 in)
1987471.5 mm (18.6 in)
1988180.5 mm (7.1 in)
1989192.0 mm (7.6 in)
199087.5 mm (3.4 in)
1991101.0 mm (4.0 in)
199264.5 mm (2.5 in)
1993104.0 mm (4.1 in)
1994136.0 mm (5.4 in)
1995126.0 mm (5.0 in)
1996204.0 mm (8.0 in)
1997148.0 mm (5.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Eureka by year The longest dry spell of the year at Eureka, 1936 to 1997. The record is 110 days in 1991, marked on the chart; the median year is 50 days. 0255075100125194019601980Record: 110 days in 1991
The longest dry spell of the year at Eureka, 1936 to 1997. The record is 110 days in 1991, marked on the chart; the median year is 50 days.
Longest dry spell (CDD) at Eureka by year
YearLongest dry spell (CDD)
193646 days
193782 days
193823 days
193947 days
194050 days
194158 days
194283 days
194326 days
194469 days
194540 days
194657 days
194750 days
194884 days
194955 days
195028 days
195190 days
195229 days
195385 days
195454 days
195590 days
195656 days
195723 days
195846 days
195950 days
196032 days
196140 days
1962103 days
196336 days
196440 days
196536 days
196662 days
196757 days
196847 days
196955 days
197052 days
197133 days
197236 days
197354 days
197439 days
197522 days
197649 days
197740 days
197861 days
197942 days
198057 days
198153 days
198240 days
198360 days
198436 days
198576 days
198683 days
198749 days
198846 days
198933 days
199050 days
1991110 days
199264 days
199347 days
199437 days
199548 days
199666 days
199733 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

60 years, 1936 to 1997

A day with at least 60.6 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 283.9 mm (11.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Eureka: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years60.6 mm (2.4 in)
5 years96.2 mm (3.8 in)
10 years127.3 mm (5.0 in)
25 years177.8 mm (7.0 in)
50 years225.6 mm (8.9 in)
100 years283.9 mm (11.2 in)Longer than the 60 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, 60 years of values from 1936 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: 295.0 mm (11.6 in) in 1959; 205.5 mm (8.1 in) in 1985; 154.0 mm (6.1 in) in 1996.

Download the Data

  • Data for Eureka standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Eureka 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). Records are computed by this site and are not official.

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