Heidelberg Cape (Pol) Weather Records (SF000098150)

Record envelope, standing records and threshold days for Heidelberg Cape (Pol) (SF000098150), South Africa, with 120 years of record.

Key Facts for Heidelberg Cape (Pol)

Heidelberg Cape (Pol) (SF000098150) is a weather station in South Africa at -34.08 latitude and 20.95 longitude, 91 m (299 ft) above sea level.
The station reports from 1878 to 1997, 120 years of record.
0 records set at Heidelberg Cape (Pol) still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Heidelberg Cape (Pol) set a daily record precipitation of 18.0 mm (0.7 in) on 20 July 1997.

About the Station

Location: South Africa, -34.08 latitude, 20.95 longitude.
Elevation: 91 m (299 ft).
Period of record: 1878 to 1997, 120 years.
Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Heidelberg Cape (Pol). 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 Heidelberg Cape (Pol), with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

0 standing records

0 records at Heidelberg Cape (Pol) still stand.

Wettest Day of Each Month

Nov: 145.3 mm (5.7 in)

The wettest day on record for each calendar month at Heidelberg Cape (Pol). The most was 145.3 mm (5.7 in) on 24 November 1928.

Record daily precipitation for each month at Heidelberg Cape (Pol)
Month	Record daily precipitation (mm)	Date
Jan	85.9 mm (3.4 in)	11 January 1951
Feb	90.0 mm (3.5 in)	25 February 1981
Mar	111.3 mm (4.4 in)	3 March 1887
Apr	98.0 mm (3.9 in)	26 April 1981
May	88.4 mm (3.5 in)	5 May 1897
Jun	59.9 mm (2.4 in)	7 June 1891
Jul	59.4 mm (2.3 in)	24 July 1951
Aug	109.0 mm (4.3 in)	21 August 1962
Sep	92.7 mm (3.6 in)	10 September 1885
Oct	128.0 mm (5.0 in)	8 October 1884
Nov	145.3 mm (5.7 in)	24 November 1928
Dec	57.2 mm (2.3 in)	21 December 1928

Latest Records

Latest records at Heidelberg Cape (Pol)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 July 1997	Heidelberg Cape (Pol), ZA	daily rain	18.0 mm (0.7 in)	3.0 mm (0.12 in)	18 years	19 of 100 (Routine)
19 July 1997	Heidelberg Cape (Pol), ZA	daily rain	38.0 mm (1.5 in)	17.9 mm (0.7 in)	117 years	65 of 100 (Major)
19 March 1997	Heidelberg Cape (Pol), ZA	daily rain	45.0 mm (1.8 in)	31.0 mm (1.2 in)	31 years	50 of 100 (Notable)
21 November 1996	Heidelberg Cape (Pol), ZA	daily rain	50.0 mm (2.0 in)	36.0 mm (1.4 in)	50 years	55 of 100 (Notable)
22 October 1996	Heidelberg Cape (Pol), ZA	daily rain	42.0 mm (1.7 in)	17.9 mm (0.7 in)	46 years	40 of 100 (Notable)
27 July 1996	Heidelberg Cape (Pol), ZA	daily rain	5.0 mm (0.20 in)	1.4 mm (0.06 in)	50 years	20 of 100 (Routine)
2 March 1996	Heidelberg Cape (Pol), ZA	daily rain	19.0 mm (0.7 in)	4.5 mm (0.18 in)	11 years	17 of 100 (Routine)
27 December 1995	Heidelberg Cape (Pol), ZA	daily rain	6.7 mm (0.26 in)	0.7 mm (0.03 in)	30 years	19 of 100 (Routine)
26 December 1995	Heidelberg Cape (Pol), ZA	daily rain	17.0 mm (0.7 in)	1.0 mm (0.04 in)	18 years	16 of 100 (Routine)
29 November 1995	Heidelberg Cape (Pol), ZA	daily rain	31.0 mm (1.2 in)	9.4 mm (0.37 in)	101 years	48 of 100 (Notable)
7 May 1995	Heidelberg Cape (Pol), ZA	daily rain	16.5 mm (0.6 in)	7.5 mm (0.30 in)	17 years	20 of 100 (Routine)
29 March 1995	Heidelberg Cape (Pol), ZA	daily rain	20.0 mm (0.8 in)	9.5 mm (0.37 in)	8 years	20 of 100 (Routine)
19 March 1995	Heidelberg Cape (Pol), ZA	daily rain (Tie)	14.0 mm (0.6 in)	tie	28 years	4 of 100 (Routine)
23 December 1994	Heidelberg Cape (Pol), ZA	daily rain	47.0 mm (1.9 in)	25.9 mm (1.0 in)	107 years	71 of 100 (Major)
14 December 1993	Heidelberg Cape (Pol), ZA	daily rain	14.0 mm (0.6 in)	1.0 mm (0.04 in)	40 years	20 of 100 (Routine)
2 December 1993	Heidelberg Cape (Pol), ZA	daily rain	19.5 mm (0.8 in)	2.3 mm (0.09 in)	8 years	14 of 100 (Routine)
12 April 1993	Heidelberg Cape (Pol), ZA	daily rain	69.0 mm (2.7 in)	35.5 mm (1.4 in)	26 years	49 of 100 (Notable)
11 November 1992	Heidelberg Cape (Pol), ZA	daily rain	51.0 mm (2.0 in)	18.0 mm (0.7 in)	56 years	41 of 100 (Notable)
15 October 1992	Heidelberg Cape (Pol), ZA	daily rain	47.0 mm (1.9 in)	29.5 mm (1.2 in)	16 years	43 of 100 (Notable)
21 September 1992	Heidelberg Cape (Pol), ZA	daily rain	17.0 mm (0.7 in)	5.0 mm (0.20 in)	26 years	20 of 100 (Routine)

Extremes by Year

1878 to 1997

Yearly extremes at Heidelberg Cape (Pol): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	145.3 mm (5.7 in)	1928	43.1 mm (1.7 in)	100
Wettest five days (Rx5day)	170.9 mm (6.7 in)	1928	62.0 mm (2.4 in)	100
Longest dry spell (CDD)	101 days	1966	34 days	100

Wettest day (Rx1day)

The wettest day of the year at Heidelberg Cape (Pol), 1878 to 1997. The record is 145.3 mm (5.7 in) in 1928, marked on the chart; the median year is 43.1 mm (1.7 in).

Wettest day (Rx1day) at Heidelberg Cape (Pol) by year
Year	Wettest day (Rx1day)
1878	50.8 mm (2.0 in)
1879	24.4 mm (1.0 in)
1880	34.8 mm (1.4 in)
1881	43.7 mm (1.7 in)
1882	30.5 mm (1.2 in)
1883	17.3 mm (0.7 in)
1884	128.0 mm (5.0 in)
1885	92.7 mm (3.6 in)
1886	21.1 mm (0.8 in)
1887	111.3 mm (4.4 in)
1888	39.4 mm (1.6 in)
1889	39.6 mm (1.6 in)
1890	36.1 mm (1.4 in)
1891	59.9 mm (2.4 in)
1892	50.8 mm (2.0 in)
1893	27.2 mm (1.1 in)
1894	44.5 mm (1.8 in)
1895	18.3 mm (0.7 in)
1896	94.0 mm (3.7 in)
1897	88.4 mm (3.5 in)
1898	17.8 mm (0.7 in)
1913	27.4 mm (1.1 in)
1914	59.2 mm (2.3 in)
1915	18.0 mm (0.7 in)
1922	44.5 mm (1.8 in)
1923	30.5 mm (1.2 in)
1924	25.7 mm (1.0 in)
1925	18.3 mm (0.7 in)
1926	28.7 mm (1.1 in)
1927	25.4 mm (1.0 in)
1928	145.3 mm (5.7 in)
1929	38.1 mm (1.5 in)
1930	68.8 mm (2.7 in)
1931	86.9 mm (3.4 in)
1932	69.9 mm (2.8 in)
1933	33.0 mm (1.3 in)
1934	72.4 mm (2.9 in)
1935	29.2 mm (1.1 in)
1936	63.5 mm (2.5 in)
1937	20.3 mm (0.8 in)
1938	44.5 mm (1.8 in)
1939	50.3 mm (2.0 in)
1940	50.8 mm (2.0 in)
1941	44.2 mm (1.7 in)
1942	17.3 mm (0.7 in)
1943	81.5 mm (3.2 in)
1944	29.2 mm (1.1 in)
1945	25.1 mm (1.0 in)
1946	25.1 mm (1.0 in)
1947	42.4 mm (1.7 in)
1948	38.9 mm (1.5 in)
1949	44.5 mm (1.8 in)
1950	47.5 mm (1.9 in)
1951	85.9 mm (3.4 in)
1952	41.9 mm (1.6 in)
1953	30.5 mm (1.2 in)
1954	50.5 mm (2.0 in)
1955	54.0 mm (2.1 in)
1956	52.5 mm (2.1 in)
1957	31.1 mm (1.2 in)
1958	38.0 mm (1.5 in)
1959	55.5 mm (2.2 in)
1960	53.0 mm (2.1 in)
1961	29.0 mm (1.1 in)
1962	109.0 mm (4.3 in)
1963	33.0 mm (1.3 in)
1964	29.5 mm (1.2 in)
1965	28.5 mm (1.1 in)
1966	34.0 mm (1.3 in)
1967	75.0 mm (3.0 in)
1968	40.0 mm (1.6 in)
1969	40.0 mm (1.6 in)
1970	45.0 mm (1.8 in)
1971	49.5 mm (1.9 in)
1972	30.0 mm (1.2 in)
1973	45.0 mm (1.8 in)
1974	41.5 mm (1.6 in)
1975	26.0 mm (1.0 in)
1976	36.0 mm (1.4 in)
1977	64.0 mm (2.5 in)
1978	19.0 mm (0.7 in)
1979	30.0 mm (1.2 in)
1980	45.0 mm (1.8 in)
1981	98.0 mm (3.9 in)
1982	60.0 mm (2.4 in)
1983	24.0 mm (0.9 in)
1984	30.0 mm (1.2 in)
1985	52.0 mm (2.0 in)
1986	71.0 mm (2.8 in)
1987	62.0 mm (2.4 in)
1988	30.5 mm (1.2 in)
1989	25.0 mm (1.0 in)
1990	48.0 mm (1.9 in)
1991	85.0 mm (3.3 in)
1992	51.0 mm (2.0 in)
1993	69.0 mm (2.7 in)
1994	47.0 mm (1.9 in)
1995	32.0 mm (1.3 in)
1996	50.0 mm (2.0 in)
1997	45.0 mm (1.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Heidelberg Cape (Pol), 1878 to 1997. The record is 170.9 mm (6.7 in) in 1928, marked on the chart; the median year is 62.0 mm (2.4 in).

Wettest five days (Rx5day) at Heidelberg Cape (Pol) by year
Year	Wettest five days (Rx5day)
1878	74.7 mm (2.9 in)
1879	39.6 mm (1.6 in)
1880	79.8 mm (3.1 in)
1881	73.4 mm (2.9 in)
1882	48.3 mm (1.9 in)
1883	35.6 mm (1.4 in)
1884	128.0 mm (5.0 in)
1885	126.7 mm (5.0 in)
1886	30.2 mm (1.2 in)
1887	137.7 mm (5.4 in)
1888	64.0 mm (2.5 in)
1889	68.4 mm (2.7 in)
1890	71.7 mm (2.8 in)
1891	80.9 mm (3.2 in)
1892	75.4 mm (3.0 in)
1893	49.9 mm (2.0 in)
1894	65.6 mm (2.6 in)
1895	30.0 mm (1.2 in)
1896	99.1 mm (3.9 in)
1897	130.0 mm (5.1 in)
1898	45.9 mm (1.8 in)
1913	29.2 mm (1.1 in)
1914	66.1 mm (2.6 in)
1915	30.4 mm (1.2 in)
1922	64.8 mm (2.6 in)
1923	44.8 mm (1.8 in)
1924	27.7 mm (1.1 in)
1925	25.9 mm (1.0 in)
1926	53.4 mm (2.1 in)
1927	55.3 mm (2.2 in)
1928	170.9 mm (6.7 in)
1929	57.6 mm (2.3 in)
1930	90.6 mm (3.6 in)
1931	98.8 mm (3.9 in)
1932	73.7 mm (2.9 in)
1933	68.6 mm (2.7 in)
1934	100.8 mm (4.0 in)
1935	40.9 mm (1.6 in)
1936	102.9 mm (4.1 in)
1937	39.3 mm (1.5 in)
1938	49.0 mm (1.9 in)
1939	63.2 mm (2.5 in)
1940	52.5 mm (2.1 in)
1941	54.6 mm (2.1 in)
1942	51.5 mm (2.0 in)
1943	112.7 mm (4.4 in)
1944	51.3 mm (2.0 in)
1945	64.3 mm (2.5 in)
1946	60.0 mm (2.4 in)
1947	61.4 mm (2.4 in)
1948	75.3 mm (3.0 in)
1949	95.8 mm (3.8 in)
1950	55.8 mm (2.2 in)
1951	85.9 mm (3.4 in)
1952	55.9 mm (2.2 in)
1953	60.6 mm (2.4 in)
1954	73.0 mm (2.9 in)
1955	72.0 mm (2.8 in)
1956	74.5 mm (2.9 in)
1957	40.6 mm (1.6 in)
1958	63.5 mm (2.5 in)
1959	84.0 mm (3.3 in)
1960	62.0 mm (2.4 in)
1961	30.5 mm (1.2 in)
1962	128.5 mm (5.1 in)
1963	54.5 mm (2.1 in)
1964	62.0 mm (2.4 in)
1965	47.6 mm (1.9 in)
1966	52.0 mm (2.0 in)
1967	100.0 mm (3.9 in)
1968	49.0 mm (1.9 in)
1969	46.0 mm (1.8 in)
1970	45.0 mm (1.8 in)
1971	59.5 mm (2.3 in)
1972	51.0 mm (2.0 in)
1973	45.0 mm (1.8 in)
1974	59.0 mm (2.3 in)
1975	41.0 mm (1.6 in)
1976	56.5 mm (2.2 in)
1977	100.5 mm (4.0 in)
1978	37.5 mm (1.5 in)
1979	53.5 mm (2.1 in)
1980	79.0 mm (3.1 in)
1981	140.0 mm (5.5 in)
1982	132.0 mm (5.2 in)
1983	40.0 mm (1.6 in)
1984	32.0 mm (1.3 in)
1985	67.8 mm (2.7 in)
1986	133.3 mm (5.2 in)
1987	68.0 mm (2.7 in)
1988	41.0 mm (1.6 in)
1989	49.5 mm (1.9 in)
1990	52.5 mm (2.1 in)
1991	97.0 mm (3.8 in)
1992	64.5 mm (2.5 in)
1993	94.5 mm (3.7 in)
1994	64.4 mm (2.5 in)
1995	63.0 mm (2.5 in)
1996	84.5 mm (3.3 in)
1997	60.0 mm (2.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Heidelberg Cape (Pol), 1878 to 1997. The record is 101 days in 1966, marked on the chart; the median year is 34 days.

Longest dry spell (CDD) at Heidelberg Cape (Pol) by year
Year	Longest dry spell (CDD)
1878	37 days
1879	41 days
1880	32 days
1881	27 days
1882	14 days
1883	30 days
1884	45 days
1885	24 days
1886	20 days
1887	26 days
1888	19 days
1889	21 days
1890	29 days
1891	28 days
1892	33 days
1893	16 days
1894	22 days
1895	26 days
1896	20 days
1897	30 days
1898	20 days
1913	24 days
1914	22 days
1915	34 days
1922	35 days
1923	41 days
1924	56 days
1925	57 days
1926	35 days
1927	48 days
1928	30 days
1929	43 days
1930	31 days
1931	79 days
1932	36 days
1933	42 days
1934	36 days
1935	35 days
1936	33 days
1937	40 days
1938	45 days
1939	41 days
1940	26 days
1941	35 days
1942	19 days
1943	36 days
1944	51 days
1945	53 days
1946	40 days
1947	30 days
1948	45 days
1949	45 days
1950	23 days
1951	42 days
1952	28 days
1953	37 days
1954	30 days
1955	38 days
1956	33 days
1957	80 days
1958	39 days
1959	82 days
1960	41 days
1961	47 days
1962	45 days
1963	62 days
1964	47 days
1965	46 days
1966	101 days
1967	40 days
1968	53 days
1969	41 days
1970	32 days
1971	28 days
1972	64 days
1973	27 days
1974	36 days
1975	30 days
1976	33 days
1977	42 days
1978	26 days
1979	32 days
1980	31 days
1981	30 days
1982	50 days
1983	32 days
1984	28 days
1985	30 days
1986	32 days
1987	46 days
1988	26 days
1989	44 days
1990	28 days
1991	36 days
1992	40 days
1993	20 days
1994	27 days
1995	25 days
1996	27 days
1997	26 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

91 years, 1878 to 1997

A day with at least 43.4 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 144.3 mm (5.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Heidelberg Cape (Pol): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	43.4 mm (1.7 in)
5 years	64.7 mm (2.5 in)
10 years	80.8 mm (3.2 in)
25 years	103.8 mm (4.1 in)
50 years	123.1 mm (4.8 in)
100 years	144.3 mm (5.7 in)	Longer than the 91 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, 91 years of values from 1878 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: 145.3 mm (5.7 in) in 1928; 128.0 mm (5.0 in) in 1884; 111.3 mm (4.4 in) in 1887.

Download the Data

Data for Heidelberg Cape (Pol) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Heidelberg Cape (Pol) 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

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

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a