Heilbron "Smoordrif" Weather Records (SF001220710)

Record envelope, standing records and threshold days for Heilbron "Smoordrif" (SF001220710), South Africa, with 75 years of record.

Key Facts for Heilbron "Smoordrif"

Heilbron "Smoordrif" (SF001220710) is a weather station in South Africa at -31.70 latitude and 26.07 longitude, 1,478 m (4,849 ft) above sea level.
The station reports from 1914 to 1988, 75 years of record.
0 records set at Heilbron "Smoordrif" still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Heilbron "Smoordrif" set a daily record precipitation of 27.5 mm (1.1 in) on 28 May 1988.

About the Station

Location: South Africa, -31.70 latitude, 26.07 longitude.
Elevation: 1,478 m (4,849 ft).
Period of record: 1914 to 1988, 75 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 Heilbron "Smoordrif". 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 Heilbron "Smoordrif", 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 Heilbron "Smoordrif" still stand.

Wettest Day of Each Month

Mar: 88.9 mm (3.5 in)

The wettest day on record for each calendar month at Heilbron "Smoordrif". The most was 88.9 mm (3.5 in) on 16 March 1918.

Record daily precipitation for each month at Heilbron "Smoordrif"
Month	Record daily precipitation (mm)	Date
Jan	66.5 mm (2.6 in)	2 January 1932
Feb	63.7 mm (2.5 in)	22 February 1972
Mar	88.9 mm (3.5 in)	16 March 1918
Apr	48.8 mm (1.9 in)	3 April 1933
May	71.1 mm (2.8 in)	17 May 1950
Jun	48.0 mm (1.9 in)	12 June 1987
Jul	46.0 mm (1.8 in)	26 July 1983
Aug	73.0 mm (2.9 in)	26 August 1970
Sep	58.5 mm (2.3 in)	22 September 1987
Oct	56.9 mm (2.2 in)	2 October 1917
Nov	72.0 mm (2.8 in)	1 November 1985
Dec	66.0 mm (2.6 in)	8 December 1950

Latest Records

Latest records at Heilbron "Smoordrif"
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 May 1988	Heilbron "Smoordrif", ZA	daily rain	27.5 mm (1.1 in)	6.5 mm (0.26 in)	7 years	15 of 100 (Routine)
15 May 1988	Heilbron "Smoordrif", ZA	daily rain	14.0 mm (0.6 in)	5.9 mm (0.23 in)	66 years	20 of 100 (Routine)
17 February 1988	Heilbron "Smoordrif", ZA	daily rain	29.0 mm (1.1 in)	11.7 mm (0.5 in)	14 years	21 of 100 (Routine)
15 January 1988	Heilbron "Smoordrif", ZA	daily rain	12.5 mm (0.5 in)	2.9 mm (0.11 in)	26 years	17 of 100 (Routine)
22 September 1987	Heilbron "Smoordrif", ZA	monthly rain	58.5 mm (2.3 in)	0.1 mm (0.00 in)	67 years	37 of 100 (Notable)
21 September 1987	Heilbron "Smoordrif", ZA	daily rain	40.0 mm (1.6 in)	30.0 mm (1.2 in)	4 years	39 of 100 (Notable)
19 July 1987	Heilbron "Smoordrif", ZA	daily rain	39.0 mm (1.5 in)	25.0 mm (1.0 in)	64 years	55 of 100 (Notable)
12 June 1987	Heilbron "Smoordrif", ZA	monthly rain	48.0 mm (1.9 in)	3.1 mm (0.12 in)	22 years	27 of 100 (Routine)
30 October 1986	Heilbron "Smoordrif", ZA	daily rain	25.0 mm (1.0 in)	10.8 mm (0.4 in)	68 years	38 of 100 (Notable)
14 September 1986	Heilbron "Smoordrif", ZA	daily rain	20.0 mm (0.8 in)	3.5 mm (0.14 in)	39 years	20 of 100 (Routine)
11 August 1986	Heilbron "Smoordrif", ZA	daily rain	12.0 mm (0.5 in)	6.4 mm (0.25 in)	56 years	20 of 100 (Routine)
18 February 1986	Heilbron "Smoordrif", ZA	daily rain	36.0 mm (1.4 in)	9.0 mm (0.35 in)	31 years	24 of 100 (Routine)
3 February 1986	Heilbron "Smoordrif", ZA	daily rain	42.5 mm (1.7 in)	4.1 mm (0.16 in)	64 years	29 of 100 (Routine)
20 December 1985	Heilbron "Smoordrif", ZA	daily rain	32.0 mm (1.3 in)	8.5 mm (0.33 in)	27 years	23 of 100 (Routine)
19 December 1985	Heilbron "Smoordrif", ZA	daily rain	34.0 mm (1.3 in)	10.0 mm (0.4 in)	32 years	26 of 100 (Routine)
2 December 1985	Heilbron "Smoordrif", ZA	daily rain	29.0 mm (1.1 in)	6.0 mm (0.24 in)	8 years	15 of 100 (Routine)
29 November 1985	Heilbron "Smoordrif", ZA	daily rain	32.0 mm (1.3 in)	14.5 mm (0.6 in)	30 years	31 of 100 (Routine)
1 November 1985	Heilbron "Smoordrif", ZA	monthly rain	72.0 mm (2.8 in)	15.0 mm (0.6 in)	9 years	35 of 100 (Notable)
24 June 1985	Heilbron "Smoordrif", ZA	daily rain	17.0 mm (0.7 in)	8.9 mm (0.35 in)	52 years	20 of 100 (Routine)
23 June 1985	Heilbron "Smoordrif", ZA	daily rain	16.0 mm (0.6 in)	4.7 mm (0.19 in)	12 years	16 of 100 (Routine)

Extremes by Year

1914 to 1988

Yearly extremes at Heilbron "Smoordrif": the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	88.9 mm (3.5 in)	1918	40.5 mm (1.6 in)	75
Wettest five days (Rx5day)	146.6 mm (5.8 in)	1925	60.7 mm (2.4 in)	75
Longest dry spell (CDD)	217 days	1988	59 days	75

Wettest day (Rx1day)

The wettest day of the year at Heilbron "Smoordrif", 1914 to 1988. The record is 88.9 mm (3.5 in) in 1918, marked on the chart; the median year is 40.5 mm (1.6 in).

Wettest day (Rx1day) at Heilbron "Smoordrif" by year
Year	Wettest day (Rx1day)
1914	33.3 mm (1.3 in)
1915	23.4 mm (0.9 in)
1916	59.7 mm (2.4 in)
1917	56.9 mm (2.2 in)
1918	88.9 mm (3.5 in)
1919	25.4 mm (1.0 in)
1920	59.2 mm (2.3 in)
1921	48.0 mm (1.9 in)
1922	27.9 mm (1.1 in)
1923	21.6 mm (0.9 in)
1924	25.4 mm (1.0 in)
1925	84.1 mm (3.3 in)
1926	32.5 mm (1.3 in)
1927	50.8 mm (2.0 in)
1928	29.2 mm (1.1 in)
1929	34.3 mm (1.4 in)
1930	52.3 mm (2.1 in)
1931	38.9 mm (1.5 in)
1932	66.5 mm (2.6 in)
1933	48.8 mm (1.9 in)
1934	37.8 mm (1.5 in)
1935	43.2 mm (1.7 in)
1936	37.6 mm (1.5 in)
1937	28.4 mm (1.1 in)
1938	34.8 mm (1.4 in)
1939	52.8 mm (2.1 in)
1940	43.2 mm (1.7 in)
1941	40.6 mm (1.6 in)
1942	40.6 mm (1.6 in)
1943	33.3 mm (1.3 in)
1944	62.0 mm (2.4 in)
1945	29.2 mm (1.1 in)
1946	61.0 mm (2.4 in)
1947	39.1 mm (1.5 in)
1948	25.4 mm (1.0 in)
1949	35.6 mm (1.4 in)
1950	71.1 mm (2.8 in)
1951	38.1 mm (1.5 in)
1952	30.5 mm (1.2 in)
1953	53.0 mm (2.1 in)
1954	32.0 mm (1.3 in)
1955	44.0 mm (1.7 in)
1956	29.0 mm (1.1 in)
1957	20.4 mm (0.8 in)
1958	45.6 mm (1.8 in)
1959	37.5 mm (1.5 in)
1960	27.7 mm (1.1 in)
1961	33.5 mm (1.3 in)
1962	29.0 mm (1.1 in)
1963	40.5 mm (1.6 in)
1964	48.3 mm (1.9 in)
1965	45.0 mm (1.8 in)
1966	56.0 mm (2.2 in)
1967	39.0 mm (1.5 in)
1968	23.0 mm (0.9 in)
1969	41.0 mm (1.6 in)
1970	73.0 mm (2.9 in)
1971	34.0 mm (1.3 in)
1972	63.7 mm (2.5 in)
1973	33.2 mm (1.3 in)
1974	58.3 mm (2.3 in)
1975	57.0 mm (2.2 in)
1976	44.0 mm (1.7 in)
1977	37.0 mm (1.5 in)
1978	40.7 mm (1.6 in)
1979	40.1 mm (1.6 in)
1980	28.4 mm (1.1 in)
1981	58.0 mm (2.3 in)
1982	43.0 mm (1.7 in)
1983	46.0 mm (1.8 in)
1984	36.0 mm (1.4 in)
1985	72.0 mm (2.8 in)
1986	42.5 mm (1.7 in)
1987	58.5 mm (2.3 in)
1988	31.0 mm (1.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Heilbron "Smoordrif", 1914 to 1988. The record is 146.6 mm (5.8 in) in 1925, marked on the chart; the median year is 60.7 mm (2.4 in).

Wettest five days (Rx5day) at Heilbron "Smoordrif" by year
Year	Wettest five days (Rx5day)
1914	34.1 mm (1.3 in)
1915	35.1 mm (1.4 in)
1916	64.8 mm (2.6 in)
1917	74.0 mm (2.9 in)
1918	112.2 mm (4.4 in)
1919	47.0 mm (1.9 in)
1920	75.4 mm (3.0 in)
1921	83.8 mm (3.3 in)
1922	50.8 mm (2.0 in)
1923	51.6 mm (2.0 in)
1924	47.5 mm (1.9 in)
1925	146.6 mm (5.8 in)
1926	40.1 mm (1.6 in)
1927	70.4 mm (2.8 in)
1928	50.8 mm (2.0 in)
1929	72.2 mm (2.8 in)
1930	64.0 mm (2.5 in)
1931	63.5 mm (2.5 in)
1932	130.0 mm (5.1 in)
1933	60.7 mm (2.4 in)
1934	63.5 mm (2.5 in)
1935	91.6 mm (3.6 in)
1936	45.4 mm (1.8 in)
1937	32.2 mm (1.3 in)
1938	50.5 mm (2.0 in)
1939	112.8 mm (4.4 in)
1940	60.0 mm (2.4 in)
1941	63.4 mm (2.5 in)
1942	66.8 mm (2.6 in)
1943	59.4 mm (2.3 in)
1944	98.1 mm (3.9 in)
1945	36.7 mm (1.4 in)
1946	82.0 mm (3.2 in)
1947	48.8 mm (1.9 in)
1948	40.7 mm (1.6 in)
1949	45.8 mm (1.8 in)
1950	88.4 mm (3.5 in)
1951	61.2 mm (2.4 in)
1952	48.7 mm (1.9 in)
1953	87.7 mm (3.5 in)
1954	57.4 mm (2.3 in)
1955	44.0 mm (1.7 in)
1956	51.8 mm (2.0 in)
1957	33.9 mm (1.3 in)
1958	66.2 mm (2.6 in)
1959	39.7 mm (1.6 in)
1960	35.5 mm (1.4 in)
1961	55.5 mm (2.2 in)
1962	56.5 mm (2.2 in)
1963	92.3 mm (3.6 in)
1964	51.7 mm (2.0 in)
1965	55.5 mm (2.2 in)
1966	56.0 mm (2.2 in)
1967	80.5 mm (3.2 in)
1968	24.0 mm (0.9 in)
1969	55.0 mm (2.2 in)
1970	90.8 mm (3.6 in)
1971	55.6 mm (2.2 in)
1972	88.3 mm (3.5 in)
1973	58.9 mm (2.3 in)
1974	130.0 mm (5.1 in)
1975	93.6 mm (3.7 in)
1976	128.3 mm (5.1 in)
1977	62.2 mm (2.4 in)
1978	62.2 mm (2.4 in)
1979	66.0 mm (2.6 in)
1980	37.5 mm (1.5 in)
1981	94.9 mm (3.7 in)
1982	48.5 mm (1.9 in)
1983	91.0 mm (3.6 in)
1984	45.5 mm (1.8 in)
1985	85.5 mm (3.4 in)
1986	58.5 mm (2.3 in)
1987	98.5 mm (3.9 in)
1988	95.0 mm (3.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Heilbron "Smoordrif", 1914 to 1988. The record is 217 days in 1988, marked on the chart; the median year is 59 days.

Longest dry spell (CDD) at Heilbron "Smoordrif" by year
Year	Longest dry spell (CDD)
1914	49 days
1915	67 days
1916	64 days
1917	34 days
1918	54 days
1919	93 days
1920	43 days
1921	117 days
1922	36 days
1923	32 days
1924	69 days
1925	51 days
1926	47 days
1927	73 days
1928	55 days
1929	55 days
1930	65 days
1931	59 days
1932	60 days
1933	57 days
1934	72 days
1935	52 days
1936	38 days
1937	91 days
1938	105 days
1939	68 days
1940	92 days
1941	71 days
1942	47 days
1943	58 days
1944	71 days
1945	69 days
1946	37 days
1947	51 days
1948	92 days
1949	138 days
1950	72 days
1951	68 days
1952	38 days
1953	64 days
1954	96 days
1955	92 days
1956	58 days
1957	87 days
1958	91 days
1959	47 days
1960	75 days
1961	42 days
1962	54 days
1963	69 days
1964	55 days
1965	34 days
1966	57 days
1967	59 days
1968	83 days
1969	55 days
1970	29 days
1971	45 days
1972	70 days
1973	62 days
1974	46 days
1975	67 days
1976	39 days
1977	42 days
1978	74 days
1979	45 days
1980	43 days
1981	47 days
1982	45 days
1983	52 days
1984	95 days
1985	102 days
1986	102 days
1987	67 days
1988	217 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

74 years, 1914 to 1988

A day with at least 40.7 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 92.4 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Heilbron "Smoordrif": the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	40.7 mm (1.6 in)
5 years	53.9 mm (2.1 in)
10 years	62.9 mm (2.5 in)
25 years	74.5 mm (2.9 in)
50 years	83.4 mm (3.3 in)
100 years	92.4 mm (3.6 in)	Longer than the 74 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, 74 years of values from 1914 to 1988.

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: 88.9 mm (3.5 in) in 1918; 84.1 mm (3.3 in) in 1925; 73.0 mm (2.9 in) in 1970.

Download the Data

Data for Heilbron "Smoordrif" standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Heilbron "Smoordrif" 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 2026-10-15 (15 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