Bochum-1 Weather Records (SF007211970)

Record envelope, standing records and threshold days for Bochum-1 (SF007211970), South Africa, with 59 years of record.

Key Facts for Bochum-1

Bochum-1 (SF007211970) is a weather station in South Africa at -23.28 latitude and 29.12 longitude, 962 m (3,156 ft) above sea level.
The station reports from 1919 to 1977, 59 years of record.
0 records set at Bochum-1 still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Bochum-1 set a daily record precipitation of 80.0 mm (3.1 in) on 6 March 1977.

About the Station

Location: South Africa, -23.28 latitude, 29.12 longitude.
Elevation: 962 m (3,156 ft).
Period of record: 1919 to 1977, 59 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 Bochum-1. 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 Bochum-1, 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 Bochum-1 still stand.

Wettest Day of Each Month

Apr: 238.8 mm (9.4 in)

The wettest day on record for each calendar month at Bochum-1. The most was 238.8 mm (9.4 in) on 6 April 1941.

Record daily precipitation for each month at Bochum-1
Month	Record daily precipitation (mm)	Date
Jan	166.4 mm (6.6 in)	19 January 1930
Feb	119.5 mm (4.7 in)	20 February 1955
Mar	82.5 mm (3.2 in)	30 March 1973
Apr	238.8 mm (9.4 in)	6 April 1941
May	34.3 mm (1.4 in)	4 May 1924
Jun	58.4 mm (2.3 in)	19 June 1940
Jul	70.1 mm (2.8 in)	10 July 1926
Aug	16.0 mm (0.6 in)	13 August 1928
Sep	37.0 mm (1.5 in)	4 September 1974
Oct	61.5 mm (2.4 in)	16 October 1922
Nov	90.2 mm (3.6 in)	9 November 1940
Dec	99.3 mm (3.9 in)	2 December 1940

Latest Records

Latest records at Bochum-1
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
6 March 1977	Bochum-1, ZA	daily rain	80.0 mm (3.1 in)	49.0 mm (1.9 in)	0 years	36 of 100 (Notable)
30 January 1977	Bochum-1, ZA	daily rain	47.0 mm (1.9 in)	18.3 mm (0.7 in)	42 years	26 of 100 (Routine)
23 December 1976	Bochum-1, ZA	daily rain	13.0 mm (0.5 in)	1.6 mm (0.06 in)	53 years	20 of 100 (Routine)
26 October 1976	Bochum-1, ZA	daily rain	5.0 mm (0.20 in)	2.0 mm (0.08 in)	12 years	9 of 100 (Routine)
4 October 1976	Bochum-1, ZA	daily rain	6.5 mm (0.26 in)	3.5 mm (0.14 in)	21 years	14 of 100 (Routine)
29 May 1976	Bochum-1, ZA	daily rain	2.0 mm (0.08 in)	0.7 mm (0.03 in)	27 years	13 of 100 (Routine)
6 March 1976	Bochum-1, ZA	daily rain	31.0 mm (1.2 in)	20.1 mm (0.8 in)	51 years	32 of 100 (Routine)
31 December 1975	Bochum-1, ZA	daily rain	35.5 mm (1.4 in)	2.5 mm (0.10 in)	4 years	7 of 100 (Routine)
22 December 1975	Bochum-1, ZA	daily rain	36.0 mm (1.4 in)	12.4 mm (0.5 in)	52 years	28 of 100 (Routine)
25 November 1975	Bochum-1, ZA	daily rain	41.0 mm (1.6 in)	14.3 mm (0.6 in)	37 years	26 of 100 (Routine)
7 June 1975	Bochum-1, ZA	daily rain	7.0 mm (0.28 in)	7.0 mm (0.28 in)	54 years	20 of 100 (Routine)
9 May 1975	Bochum-1, ZA	daily rain	5.0 mm (0.20 in)	0.7 mm (0.03 in)	24 years	12 of 100 (Routine)
24 February 1975	Bochum-1, ZA	daily rain	52.0 mm (2.0 in)	27.9 mm (1.1 in)	28 years	29 of 100 (Routine)
26 November 1974	Bochum-1, ZA	daily rain	38.5 mm (1.5 in)	27.5 mm (1.1 in)	0 years	25 of 100 (Routine)
6 September 1974	Bochum-1, ZA	daily rain	7.0 mm (0.28 in)	7.0 mm (0.28 in)	53 years	20 of 100 (Routine)
5 September 1974	Bochum-1, ZA	daily rain	24.0 mm (0.9 in)	22.0 mm (0.9 in)	16 years	20 of 100 (Routine)
4 September 1974	Bochum-1, ZA	monthly rain	37.0 mm (1.5 in)	5.5 mm (0.22 in)	0 years	22 of 100 (Routine)
15 April 1974	Bochum-1, ZA	daily rain	42.0 mm (1.7 in)	21.9 mm (0.9 in)	23 years	19 of 100 (Routine)
24 January 1974	Bochum-1, ZA	daily rain	25.0 mm (1.0 in)	12.5 mm (0.5 in)	2 years	11 of 100 (Routine)
9 December 1973	Bochum-1, ZA	daily rain	23.5 mm (0.9 in)	0.5 mm (0.02 in)	4 years	6 of 100 (Routine)

Extremes by Year

1919 to 1977

Yearly extremes at Bochum-1: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	238.8 mm (9.4 in)	1941	53.6 mm (2.1 in)	59
Wettest five days (Rx5day)	338.1 mm (13.3 in)	1941	82.2 mm (3.2 in)	59
Longest dry spell (CDD)	203 days	1946	118 days	59

Wettest day (Rx1day)

The wettest day of the year at Bochum-1, 1919 to 1977. The record is 238.8 mm (9.4 in) in 1941, marked on the chart; the median year is 53.6 mm (2.1 in).

Wettest day (Rx1day) at Bochum-1 by year
Year	Wettest day (Rx1day)
1919	13.7 mm (0.5 in)
1920	106.7 mm (4.2 in)
1921	64.8 mm (2.6 in)
1922	67.6 mm (2.7 in)
1923	58.7 mm (2.3 in)
1924	53.3 mm (2.1 in)
1925	146.6 mm (5.8 in)
1926	110.5 mm (4.4 in)
1927	52.3 mm (2.1 in)
1928	37.3 mm (1.5 in)
1929	54.9 mm (2.2 in)
1930	166.4 mm (6.6 in)
1931	41.4 mm (1.6 in)
1932	42.2 mm (1.7 in)
1933	82.3 mm (3.2 in)
1934	51.6 mm (2.0 in)
1935	28.7 mm (1.1 in)
1936	63.2 mm (2.5 in)
1937	49.8 mm (2.0 in)
1938	81.5 mm (3.2 in)
1939	89.4 mm (3.5 in)
1940	99.3 mm (3.9 in)
1941	238.8 mm (9.4 in)
1942	52.3 mm (2.1 in)
1943	53.6 mm (2.1 in)
1944	44.7 mm (1.8 in)
1945	70.1 mm (2.8 in)
1946	74.4 mm (2.9 in)
1947	46.7 mm (1.8 in)
1948	45.7 mm (1.8 in)
1949	38.1 mm (1.5 in)
1950	51.8 mm (2.0 in)
1951	35.8 mm (1.4 in)
1952	50.8 mm (2.0 in)
1953	74.9 mm (2.9 in)
1954	56.0 mm (2.2 in)
1955	119.5 mm (4.7 in)
1956	68.0 mm (2.7 in)
1957	45.0 mm (1.8 in)
1958	46.0 mm (1.8 in)
1959	74.5 mm (2.9 in)
1960	55.0 mm (2.2 in)
1961	31.0 mm (1.2 in)
1962	69.0 mm (2.7 in)
1963	42.0 mm (1.7 in)
1964	50.0 mm (2.0 in)
1965	36.0 mm (1.4 in)
1966	23.0 mm (0.9 in)
1967	50.5 mm (2.0 in)
1968	54.0 mm (2.1 in)
1969	75.0 mm (3.0 in)
1970	46.0 mm (1.8 in)
1971	60.5 mm (2.4 in)
1972	103.5 mm (4.1 in)
1973	82.5 mm (3.2 in)
1974	44.5 mm (1.8 in)
1975	52.0 mm (2.0 in)
1976	40.0 mm (1.6 in)
1977	80.0 mm (3.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Bochum-1, 1919 to 1977. The record is 338.1 mm (13.3 in) in 1941, marked on the chart; the median year is 82.2 mm (3.2 in).

Wettest five days (Rx5day) at Bochum-1 by year
Year	Wettest five days (Rx5day)
1919	20.3 mm (0.8 in)
1920	136.7 mm (5.4 in)
1921	133.6 mm (5.3 in)
1922	67.6 mm (2.7 in)
1923	109.2 mm (4.3 in)
1924	134.4 mm (5.3 in)
1925	183.7 mm (7.2 in)
1926	110.5 mm (4.4 in)
1927	117.1 mm (4.6 in)
1928	56.1 mm (2.2 in)
1929	86.1 mm (3.4 in)
1930	189.3 mm (7.5 in)
1931	119.9 mm (4.7 in)
1932	67.3 mm (2.6 in)
1933	107.2 mm (4.2 in)
1934	51.6 mm (2.0 in)
1935	47.4 mm (1.9 in)
1936	79.3 mm (3.1 in)
1937	82.2 mm (3.2 in)
1938	111.2 mm (4.4 in)
1939	150.6 mm (5.9 in)
1940	199.1 mm (7.8 in)
1941	338.1 mm (13.3 in)
1942	73.4 mm (2.9 in)
1943	82.0 mm (3.2 in)
1944	44.7 mm (1.8 in)
1945	76.7 mm (3.0 in)
1946	109.0 mm (4.3 in)
1947	87.4 mm (3.4 in)
1948	77.5 mm (3.1 in)
1949	54.9 mm (2.2 in)
1950	99.1 mm (3.9 in)
1951	87.2 mm (3.4 in)
1952	54.4 mm (2.1 in)
1953	83.3 mm (3.3 in)
1954	72.5 mm (2.9 in)
1955	171.5 mm (6.8 in)
1956	106.5 mm (4.2 in)
1957	58.0 mm (2.3 in)
1958	89.0 mm (3.5 in)
1959	76.5 mm (3.0 in)
1960	86.0 mm (3.4 in)
1961	50.0 mm (2.0 in)
1962	69.0 mm (2.7 in)
1963	71.5 mm (2.8 in)
1964	69.0 mm (2.7 in)
1965	44.0 mm (1.7 in)
1966	44.0 mm (1.7 in)
1967	58.0 mm (2.3 in)
1968	64.0 mm (2.5 in)
1969	118.0 mm (4.6 in)
1970	75.5 mm (3.0 in)
1971	87.5 mm (3.4 in)
1972	142.5 mm (5.6 in)
1973	82.5 mm (3.2 in)
1974	73.0 mm (2.9 in)
1975	78.5 mm (3.1 in)
1976	77.0 mm (3.0 in)
1977	89.5 mm (3.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Bochum-1, 1919 to 1977. The record is 203 days in 1946, marked on the chart; the median year is 118 days.

Longest dry spell (CDD) at Bochum-1 by year
Year	Longest dry spell (CDD)
1919	8 days
1920	163 days
1921	100 days
1922	73 days
1923	121 days
1924	166 days
1925	77 days
1926	133 days
1927	81 days
1928	134 days
1929	158 days
1930	153 days
1931	103 days
1932	118 days
1933	177 days
1934	188 days
1935	107 days
1936	146 days
1937	170 days
1938	143 days
1939	80 days
1940	91 days
1941	98 days
1942	151 days
1943	105 days
1944	172 days
1945	172 days
1946	203 days
1947	60 days
1948	153 days
1949	129 days
1950	171 days
1951	88 days
1952	112 days
1953	155 days
1954	87 days
1955	58 days
1956	108 days
1957	52 days
1958	100 days
1959	89 days
1960	39 days
1961	70 days
1962	107 days
1963	101 days
1964	179 days
1965	174 days
1966	91 days
1967	163 days
1968	87 days
1969	128 days
1970	74 days
1971	102 days
1972	152 days
1973	164 days
1974	120 days
1975	159 days
1976	127 days
1977	67 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

57 years, 1920 to 1976

A day with at least 55.4 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 218.7 mm (8.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Bochum-1: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	55.4 mm (2.2 in)
5 years	80.6 mm (3.2 in)
10 years	102.9 mm (4.1 in)
25 years	139.7 mm (5.5 in)
50 years	175.1 mm (6.9 in)
100 years	218.7 mm (8.6 in)	Longer than the 57 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, 57 years of values from 1920 to 1976.

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: 238.8 mm (9.4 in) in 1941; 166.4 mm (6.6 in) in 1930; 146.6 mm (5.8 in) in 1925.

Download the Data

Data for Bochum-1 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bochum-1 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 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