Isidinge (Bos) Weather Records (SF000794900)

Record envelope, standing records and threshold days for Isidinge (Bos) (SF000794900), South Africa, with 113 years of record.

Key Facts for Isidinge (Bos)

Isidinge (Bos) (SF000794900) is a weather station in South Africa at -32.67 latitude and 27.28 longitude, 991 m (3,251 ft) above sea level.
The station reports from 1885 to 1997, 113 years of record.
0 records set at Isidinge (Bos) still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Isidinge (Bos) set a daily record precipitation of 45.0 mm (1.8 in) on 29 November 1997.

About the Station

Location: South Africa, -32.67 latitude, 27.28 longitude.
Elevation: 991 m (3,251 ft).
Period of record: 1885 to 1997, 113 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 Isidinge (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 Isidinge (Bos), 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 Isidinge (Bos) still stand.

All-Time Record Progression

3 new records

3 all-time records were set at Isidinge (Bos) between 4 November 1922 and 2 November 1985. Each dot is a new record.

When Isidinge (Bos) set new all-time records
Date	Kind	Detail
1922-11-04	Record daily precipitation	Record daily precipitation 154.9 mm (6.1 in)
1948-04-19	Record daily precipitation	Record daily precipitation 207.0 mm (8.1 in)
1985-11-02	Record daily precipitation	Record daily precipitation 224.8 mm (8.9 in)

Wettest Day of Each Month

Nov: 224.8 mm (8.9 in)

The wettest day on record for each calendar month at Isidinge (Bos). The most was 224.8 mm (8.9 in) on 2 November 1985.

Record daily precipitation for each month at Isidinge (Bos)
Month	Record daily precipitation (mm)	Date
Jan	123.5 mm (4.9 in)	24 January 1981
Feb	139.0 mm (5.5 in)	1 February 1964
Mar	119.1 mm (4.7 in)	28 March 1928
Apr	207.0 mm (8.1 in)	19 April 1948
May	126.2 mm (5.0 in)	17 May 1950
Jun	131.0 mm (5.2 in)	12 June 1997
Jul	100.5 mm (4.0 in)	17 July 1959
Aug	151.5 mm (6.0 in)	20 August 1979
Sep	108.5 mm (4.3 in)	2 September 1968
Oct	122.6 mm (4.8 in)	2 October 1989
Nov	224.8 mm (8.9 in)	2 November 1985
Dec	108.7 mm (4.3 in)	17 December 1937

Latest Records

Latest records at Isidinge (Bos)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 November 1997	Isidinge (Bos), ZA	daily rain	45.0 mm (1.8 in)	3.5 mm (0.14 in)	23 years	18 of 100 (Routine)
27 November 1997	Isidinge (Bos), ZA	daily rain	48.5 mm (1.9 in)	11.7 mm (0.5 in)	64 years	36 of 100 (Notable)
14 October 1997	Isidinge (Bos), ZA	daily rain	103.5 mm (4.1 in)	69.5 mm (2.7 in)	63 years	68 of 100 (Major)
13 June 1997	Isidinge (Bos), ZA	daily rain	50.0 mm (2.0 in)	5.0 mm (0.20 in)	28 years	22 of 100 (Routine)
12 June 1997	Isidinge (Bos), ZA	monthly rain	131.0 mm (5.2 in)	18.0 mm (0.7 in)	80 years	58 of 100 (Notable)
27 May 1997	Isidinge (Bos), ZA	daily rain	44.4 mm (1.7 in)	13.4 mm (0.5 in)	30 years	30 of 100 (Routine)
20 April 1997	Isidinge (Bos), ZA	daily rain	19.8 mm (0.8 in)	0.5 mm (0.02 in)	92 years	20 of 100 (Routine)
6 April 1997	Isidinge (Bos), ZA	daily rain	96.5 mm (3.8 in)	33.5 mm (1.3 in)	90 years	63 of 100 (Major)
2 March 1996	Isidinge (Bos), ZA	daily rain	41.0 mm (1.6 in)	4.2 mm (0.17 in)	80 years	37 of 100 (Notable)
18 January 1996	Isidinge (Bos), ZA	daily rain	109.0 mm (4.3 in)	63.5 mm (2.5 in)	85 years	75 of 100 (Major)
23 December 1995	Isidinge (Bos), ZA	daily rain	40.0 mm (1.6 in)	6.0 mm (0.24 in)	13 years	18 of 100 (Routine)
15 January 1995	Isidinge (Bos), ZA	daily rain	49.0 mm (1.9 in)	19.0 mm (0.7 in)	9 years	30 of 100 (Routine)
26 December 1994	Isidinge (Bos), ZA	daily rain	39.0 mm (1.5 in)	11.1 mm (0.4 in)	72 years	40 of 100 (Notable)
25 December 1994	Isidinge (Bos), ZA	daily rain	46.4 mm (1.8 in)	15.2 mm (0.6 in)	107 years	52 of 100 (Notable)
18 October 1990	Isidinge (Bos), ZA	daily rain	52.0 mm (2.0 in)	10.6 mm (0.4 in)	24 years	26 of 100 (Routine)
29 August 1990	Isidinge (Bos), ZA	daily rain	20.5 mm (0.8 in)	7.8 mm (0.31 in)	101 years	20 of 100 (Routine)
29 June 1990	Isidinge (Bos), ZA	daily rain	15.0 mm (0.6 in)	4.1 mm (0.16 in)	94 years	20 of 100 (Routine)
28 November 1989	Isidinge (Bos), ZA	daily rain	44.9 mm (1.8 in)	0.4 mm (0.02 in)	68 years	30 of 100 (Routine)
15 November 1989	Isidinge (Bos), ZA	daily rain	73.7 mm (2.9 in)	5.1 mm (0.20 in)	51 years	28 of 100 (Routine)
14 November 1989	Isidinge (Bos), ZA	daily rain	43.5 mm (1.7 in)	11.7 mm (0.5 in)	52 years	32 of 100 (Routine)

Extremes by Year

1885 to 1997

Yearly extremes at Isidinge (Bos): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	224.8 mm (8.9 in)	1985	69.6 mm (2.7 in)	111
Wettest five days (Rx5day)	486.0 mm (19.1 in)	1970	121.6 mm (4.8 in)	111
Longest dry spell (CDD)	77 days	1885	26 days	111

Wettest day (Rx1day)

The wettest day of the year at Isidinge (Bos), 1885 to 1997. The record is 224.8 mm (8.9 in) in 1985, marked on the chart; the median year is 69.6 mm (2.7 in).

Wettest day (Rx1day) at Isidinge (Bos) by year
Year	Wettest day (Rx1day)
1885	38.9 mm (1.5 in)
1886	79.5 mm (3.1 in)
1887	95.5 mm (3.8 in)
1888	69.6 mm (2.7 in)
1889	98.0 mm (3.9 in)
1890	61.7 mm (2.4 in)
1891	78.5 mm (3.1 in)
1892	76.2 mm (3.0 in)
1893	81.0 mm (3.2 in)
1894	67.8 mm (2.7 in)
1895	66.8 mm (2.6 in)
1896	81.3 mm (3.2 in)
1897	111.0 mm (4.4 in)
1898	60.2 mm (2.4 in)
1899	42.7 mm (1.7 in)
1900	50.0 mm (2.0 in)
1901	67.6 mm (2.7 in)
1902	91.7 mm (3.6 in)
1903	90.9 mm (3.6 in)
1904	50.8 mm (2.0 in)
1905	115.3 mm (4.5 in)
1906	106.7 mm (4.2 in)
1907	63.0 mm (2.5 in)
1908	46.2 mm (1.8 in)
1909	53.3 mm (2.1 in)
1910	91.4 mm (3.6 in)
1911	62.5 mm (2.5 in)
1912	54.6 mm (2.1 in)
1913	63.5 mm (2.5 in)
1914	64.0 mm (2.5 in)
1915	59.7 mm (2.4 in)
1916	69.9 mm (2.8 in)
1917	113.0 mm (4.4 in)
1918	48.0 mm (1.9 in)
1919	25.9 mm (1.0 in)
1920	59.9 mm (2.4 in)
1921	90.2 mm (3.6 in)
1922	154.9 mm (6.1 in)
1923	76.5 mm (3.0 in)
1924	34.5 mm (1.4 in)
1925	49.5 mm (1.9 in)
1926	45.7 mm (1.8 in)
1927	57.9 mm (2.3 in)
1928	119.1 mm (4.7 in)
1929	64.0 mm (2.5 in)
1930	87.9 mm (3.5 in)
1931	99.1 mm (3.9 in)
1932	85.9 mm (3.4 in)
1933	55.4 mm (2.2 in)
1934	67.3 mm (2.6 in)
1935	85.1 mm (3.4 in)
1936	76.5 mm (3.0 in)
1937	108.7 mm (4.3 in)
1938	68.6 mm (2.7 in)
1939	58.2 mm (2.3 in)
1940	73.4 mm (2.9 in)
1941	95.3 mm (3.8 in)
1942	137.9 mm (5.4 in)
1943	79.8 mm (3.1 in)
1944	112.5 mm (4.4 in)
1945	40.1 mm (1.6 in)
1946	39.1 mm (1.5 in)
1947	96.5 mm (3.8 in)
1948	207.0 mm (8.1 in)
1949	80.0 mm (3.1 in)
1950	126.2 mm (5.0 in)
1951	65.3 mm (2.6 in)
1952	48.5 mm (1.9 in)
1953	18.5 mm (0.7 in)
1954	46.7 mm (1.8 in)
1955	43.8 mm (1.7 in)
1956	142.5 mm (5.6 in)
1957	52.5 mm (2.1 in)
1958	49.0 mm (1.9 in)
1959	100.5 mm (4.0 in)
1960	65.5 mm (2.6 in)
1961	38.1 mm (1.5 in)
1962	77.5 mm (3.1 in)
1963	86.5 mm (3.4 in)
1964	139.0 mm (5.5 in)
1965	48.5 mm (1.9 in)
1966	76.0 mm (3.0 in)
1967	52.0 mm (2.0 in)
1968	108.5 mm (4.3 in)
1969	52.0 mm (2.0 in)
1970	137.0 mm (5.4 in)
1971	89.0 mm (3.5 in)
1972	75.0 mm (3.0 in)
1973	93.5 mm (3.7 in)
1974	89.3 mm (3.5 in)
1975	65.0 mm (2.6 in)
1976	84.0 mm (3.3 in)
1977	47.5 mm (1.9 in)
1978	74.0 mm (2.9 in)
1979	151.5 mm (6.0 in)
1980	38.3 mm (1.5 in)
1981	123.5 mm (4.9 in)
1982	41.8 mm (1.6 in)
1983	67.3 mm (2.6 in)
1984	37.5 mm (1.5 in)
1985	224.8 mm (8.9 in)
1986	41.0 mm (1.6 in)
1987	69.5 mm (2.7 in)
1988	70.9 mm (2.8 in)
1989	122.6 mm (4.8 in)
1990	52.0 mm (2.0 in)
1991	30.0 mm (1.2 in)
1994	62.0 mm (2.4 in)
1995	49.0 mm (1.9 in)
1996	109.0 mm (4.3 in)
1997	131.0 mm (5.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Isidinge (Bos), 1885 to 1997. The record is 486.0 mm (19.1 in) in 1970, marked on the chart; the median year is 121.6 mm (4.8 in).

Wettest five days (Rx5day) at Isidinge (Bos) by year
Year	Wettest five days (Rx5day)
1885	51.3 mm (2.0 in)
1886	112.8 mm (4.4 in)
1887	179.7 mm (7.1 in)
1888	109.0 mm (4.3 in)
1889	191.5 mm (7.5 in)
1890	104.4 mm (4.1 in)
1891	105.1 mm (4.1 in)
1892	101.2 mm (4.0 in)
1893	170.9 mm (6.7 in)
1894	82.8 mm (3.3 in)
1895	93.8 mm (3.7 in)
1896	169.9 mm (6.7 in)
1897	140.0 mm (5.5 in)
1898	101.9 mm (4.0 in)
1899	68.1 mm (2.7 in)
1900	133.6 mm (5.3 in)
1901	83.6 mm (3.3 in)
1902	179.8 mm (7.1 in)
1903	91.7 mm (3.6 in)
1904	90.7 mm (3.6 in)
1905	190.0 mm (7.5 in)
1906	170.5 mm (6.7 in)
1907	81.5 mm (3.2 in)
1908	78.2 mm (3.1 in)
1909	77.4 mm (3.0 in)
1910	115.3 mm (4.5 in)
1911	191.1 mm (7.5 in)
1912	132.1 mm (5.2 in)
1913	111.0 mm (4.4 in)
1914	104.9 mm (4.1 in)
1915	75.2 mm (3.0 in)
1916	102.4 mm (4.0 in)
1917	187.4 mm (7.4 in)
1918	119.4 mm (4.7 in)
1919	53.9 mm (2.1 in)
1920	129.5 mm (5.1 in)
1921	138.8 mm (5.5 in)
1922	310.8 mm (12.2 in)
1923	152.7 mm (6.0 in)
1924	60.6 mm (2.4 in)
1925	146.8 mm (5.8 in)
1926	71.2 mm (2.8 in)
1927	134.9 mm (5.3 in)
1928	173.9 mm (6.8 in)
1929	120.9 mm (4.8 in)
1930	128.8 mm (5.1 in)
1931	143.2 mm (5.6 in)
1932	211.1 mm (8.3 in)
1933	92.3 mm (3.6 in)
1934	107.5 mm (4.2 in)
1935	134.6 mm (5.3 in)
1936	163.1 mm (6.4 in)
1937	169.4 mm (6.7 in)
1938	95.5 mm (3.8 in)
1939	134.9 mm (5.3 in)
1940	116.4 mm (4.6 in)
1941	155.6 mm (6.1 in)
1942	186.8 mm (7.4 in)
1943	123.0 mm (4.8 in)
1944	143.8 mm (5.7 in)
1945	92.1 mm (3.6 in)
1946	104.6 mm (4.1 in)
1947	111.3 mm (4.4 in)
1948	288.0 mm (11.3 in)
1949	155.7 mm (6.1 in)
1950	191.7 mm (7.5 in)
1951	118.1 mm (4.6 in)
1952	104.1 mm (4.1 in)
1953	32.2 mm (1.3 in)
1954	101.6 mm (4.0 in)
1955	57.3 mm (2.3 in)
1956	247.5 mm (9.7 in)
1957	98.8 mm (3.9 in)
1958	113.0 mm (4.4 in)
1959	191.0 mm (7.5 in)
1960	100.2 mm (3.9 in)
1961	78.8 mm (3.1 in)
1962	151.2 mm (6.0 in)
1963	151.9 mm (6.0 in)
1964	173.2 mm (6.8 in)
1965	110.7 mm (4.4 in)
1966	119.2 mm (4.7 in)
1967	83.2 mm (3.3 in)
1968	156.5 mm (6.2 in)
1969	101.0 mm (4.0 in)
1970	486.0 mm (19.1 in)
1971	167.0 mm (6.6 in)
1972	166.0 mm (6.5 in)
1973	128.0 mm (5.0 in)
1974	123.0 mm (4.8 in)
1975	116.5 mm (4.6 in)
1976	190.5 mm (7.5 in)
1977	89.0 mm (3.5 in)
1978	144.0 mm (5.7 in)
1979	219.3 mm (8.6 in)
1980	61.2 mm (2.4 in)
1981	187.4 mm (7.4 in)
1982	62.8 mm (2.5 in)
1983	121.2 mm (4.8 in)
1984	76.2 mm (3.0 in)
1985	368.1 mm (14.5 in)
1986	83.7 mm (3.3 in)
1987	123.3 mm (4.9 in)
1988	121.6 mm (4.8 in)
1989	171.2 mm (6.7 in)
1990	73.2 mm (2.9 in)
1991	68.0 mm (2.7 in)
1994	158.0 mm (6.2 in)
1995	159.0 mm (6.3 in)
1996	141.0 mm (5.6 in)
1997	244.5 mm (9.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Isidinge (Bos), 1885 to 1997. The record is 77 days in 1885, marked on the chart; the median year is 26 days.

Longest dry spell (CDD) at Isidinge (Bos) by year
Year	Longest dry spell (CDD)
1885	77 days
1886	47 days
1887	33 days
1888	23 days
1889	32 days
1890	21 days
1891	17 days
1892	44 days
1893	24 days
1894	39 days
1895	36 days
1896	24 days
1897	30 days
1898	19 days
1899	17 days
1900	29 days
1901	24 days
1902	40 days
1903	15 days
1904	24 days
1905	28 days
1906	30 days
1907	30 days
1908	15 days
1909	43 days
1910	31 days
1911	39 days
1912	24 days
1913	24 days
1914	32 days
1915	36 days
1916	31 days
1917	25 days
1918	31 days
1919	35 days
1920	32 days
1921	15 days
1922	20 days
1923	22 days
1924	30 days
1925	21 days
1926	21 days
1927	38 days
1928	18 days
1929	24 days
1930	26 days
1931	22 days
1932	25 days
1933	16 days
1934	32 days
1935	22 days
1936	33 days
1937	30 days
1938	16 days
1939	13 days
1940	27 days
1941	27 days
1942	22 days
1943	26 days
1944	17 days
1945	24 days
1946	37 days
1947	13 days
1948	27 days
1949	48 days
1950	16 days
1951	19 days
1952	16 days
1953	40 days
1954	17 days
1955	25 days
1956	40 days
1957	20 days
1958	25 days
1959	24 days
1960	15 days
1961	20 days
1962	35 days
1963	20 days
1964	23 days
1965	20 days
1966	44 days
1967	31 days
1968	29 days
1969	38 days
1970	25 days
1971	19 days
1972	23 days
1973	37 days
1974	23 days
1975	38 days
1976	18 days
1977	26 days
1978	34 days
1979	22 days
1980	39 days
1981	36 days
1982	26 days
1983	29 days
1984	31 days
1985	41 days
1986	30 days
1987	30 days
1988	24 days
1989	32 days
1990	50 days
1991	13 days
1994	16 days
1995	48 days
1996	56 days
1997	14 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

102 years, 1886 to 1997

A day with at least 72.0 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 202.9 mm (8.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Isidinge (Bos): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	72.0 mm (2.8 in)
5 years	101.8 mm (4.0 in)
10 years	123.4 mm (4.9 in)
25 years	153.2 mm (6.0 in)
50 years	177.3 mm (7.0 in)
100 years	202.9 mm (8.0 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 102 years of values from 1886 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: 224.8 mm (8.9 in) in 1985; 207.0 mm (8.1 in) in 1948; 154.9 mm (6.1 in) in 1922.

Download the Data

Data for Isidinge (Bos) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Isidinge (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 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