Groenfontein "Montagu" Weather Records (SF001731340)

Record envelope, standing records and threshold days for Groenfontein "Montagu" (SF001731340), South Africa, with 75 years of record.

Key Facts for Groenfontein "Montagu"

Groenfontein "Montagu" (SF001731340) is a weather station in South Africa at -30.73 latitude and 25.58 longitude, 1,271 m (4,170 ft) above sea level.
The station reports from 1902 to 1976, 75 years of record.
0 records set at Groenfontein "Montagu" still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Groenfontein "Montagu" set a daily record precipitation of 33.7 mm (1.3 in) on 4 October 1976.

About the Station

Location: South Africa, -30.73 latitude, 25.58 longitude.
Elevation: 1,271 m (4,170 ft).
Period of record: 1902 to 1976, 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 Groenfontein "Montagu". 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 Groenfontein "Montagu", 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 Groenfontein "Montagu" still stand.

Wettest Day of Each Month

Feb: 76.2 mm (3.0 in)

The wettest day on record for each calendar month at Groenfontein "Montagu". The most was 76.2 mm (3.0 in) on 1 February 1939.

Record daily precipitation for each month at Groenfontein "Montagu"
Month	Record daily precipitation (mm)	Date
Jan	58.0 mm (2.3 in)	30 January 1967
Feb	76.2 mm (3.0 in)	1 February 1939
Mar	76.2 mm (3.0 in)	16 March 1918
Apr	65.5 mm (2.6 in)	9 April 1969
May	71.0 mm (2.8 in)	12 May 1959
Jun	39.6 mm (1.6 in)	22 June 1908
Jul	44.5 mm (1.8 in)	12 July 1908
Aug	56.0 mm (2.2 in)	17 August 1974
Sep	69.3 mm (2.7 in)	17 September 1932
Oct	57.2 mm (2.3 in)	28 October 1906
Nov	50.8 mm (2.0 in)	8 November 1940
Dec	76.2 mm (3.0 in)	31 December 1933

Latest Records

Latest records at Groenfontein "Montagu"
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 October 1976	Groenfontein "Montagu", ZA	daily rain	33.7 mm (1.3 in)	17.2 mm (0.7 in)	38 years	33 of 100 (Routine)
26 September 1976	Groenfontein "Montagu", ZA	daily rain	15.2 mm (0.6 in)	9.1 mm (0.36 in)	36 years	20 of 100 (Routine)
24 September 1976	Groenfontein "Montagu", ZA	daily rain	16.7 mm (0.7 in)	4.4 mm (0.17 in)	19 years	15 of 100 (Routine)
19 July 1976	Groenfontein "Montagu", ZA	daily rain	24.8 mm (1.0 in)	22.0 mm (0.9 in)	53 years	20 of 100 (Routine)
29 April 1976	Groenfontein "Montagu", ZA	daily rain	30.5 mm (1.2 in)	15.2 mm (0.6 in)	17 years	27 of 100 (Routine)
8 March 1976	Groenfontein "Montagu", ZA	daily rain	64.9 mm (2.6 in)	41.5 mm (1.6 in)	65 years	63 of 100 (Major)
6 March 1976	Groenfontein "Montagu", ZA	daily rain	33.9 mm (1.3 in)	2.9 mm (0.11 in)	55 years	25 of 100 (Routine)
7 February 1976	Groenfontein "Montagu", ZA	daily rain	19.5 mm (0.8 in)	8.3 mm (0.33 in)	41 years	20 of 100 (Routine)
11 January 1976	Groenfontein "Montagu", ZA	daily rain	17.0 mm (0.7 in)	3.8 mm (0.15 in)	53 years	20 of 100 (Routine)
9 January 1976	Groenfontein "Montagu", ZA	daily rain (Tie)	8.7 mm (0.34 in)	tie	1 year	1 of 100 (Routine)
14 December 1975	Groenfontein "Montagu", ZA	daily rain	15.5 mm (0.6 in)	7.9 mm (0.31 in)	26 years	20 of 100 (Routine)
27 November 1975	Groenfontein "Montagu", ZA	daily rain	24.7 mm (1.0 in)	12.5 mm (0.5 in)	68 years	20 of 100 (Routine)
5 July 1975	Groenfontein "Montagu", ZA	daily rain	11.7 mm (0.5 in)	11.4 mm (0.4 in)	52 years	20 of 100 (Routine)
22 January 1975	Groenfontein "Montagu", ZA	daily rain	15.5 mm (0.6 in)	8.5 mm (0.33 in)	19 years	20 of 100 (Routine)
18 August 1974	Groenfontein "Montagu", ZA	daily rain	34.0 mm (1.3 in)	25.0 mm (1.0 in)	13 years	36 of 100 (Notable)
17 August 1974	Groenfontein "Montagu", ZA	monthly rain	56.0 mm (2.2 in)	5.2 mm (0.20 in)	35 years	32 of 100 (Routine)
24 May 1974	Groenfontein "Montagu", ZA	daily rain	16.0 mm (0.6 in)	4.8 mm (0.19 in)	0 years	12 of 100 (Routine)
5 May 1974	Groenfontein "Montagu", ZA	daily rain	41.0 mm (1.6 in)	29.6 mm (1.2 in)	57 years	55 of 100 (Notable)
31 March 1974	Groenfontein "Montagu", ZA	daily rain	41.1 mm (1.6 in)	16.1 mm (0.6 in)	8 years	23 of 100 (Routine)
3 March 1974	Groenfontein "Montagu", ZA	daily rain	24.3 mm (1.0 in)	3.6 mm (0.14 in)	16 years	15 of 100 (Routine)

Extremes by Year

1902 to 1976

Yearly extremes at Groenfontein "Montagu": the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	76.2 mm (3.0 in)	1918	39.2 mm (1.5 in)	74
Wettest five days (Rx5day)	155.5 mm (6.1 in)	1974	61.5 mm (2.4 in)	74
Longest dry spell (CDD)	238 days	1918	81 days	74

Wettest day (Rx1day)

The wettest day of the year at Groenfontein "Montagu", 1902 to 1976. The record is 76.2 mm (3.0 in) in 1918, marked on the chart; the median year is 39.2 mm (1.5 in).

Wettest day (Rx1day) at Groenfontein "Montagu" by year
Year	Wettest day (Rx1day)
1902	26.9 mm (1.1 in)
1903	35.6 mm (1.4 in)
1904	44.5 mm (1.8 in)
1905	31.8 mm (1.3 in)
1906	57.2 mm (2.3 in)
1907	26.4 mm (1.0 in)
1908	44.5 mm (1.8 in)
1909	40.6 mm (1.6 in)
1911	27.4 mm (1.1 in)
1912	49.5 mm (1.9 in)
1913	38.1 mm (1.5 in)
1914	18.0 mm (0.7 in)
1915	32.3 mm (1.3 in)
1916	29.7 mm (1.2 in)
1917	38.1 mm (1.5 in)
1918	76.2 mm (3.0 in)
1919	25.1 mm (1.0 in)
1920	33.5 mm (1.3 in)
1921	31.5 mm (1.2 in)
1922	26.7 mm (1.1 in)
1923	33.3 mm (1.3 in)
1924	30.5 mm (1.2 in)
1925	36.6 mm (1.4 in)
1926	29.2 mm (1.1 in)
1927	23.6 mm (0.9 in)
1928	27.7 mm (1.1 in)
1929	72.4 mm (2.9 in)
1930	32.3 mm (1.3 in)
1931	40.4 mm (1.6 in)
1932	69.3 mm (2.7 in)
1933	76.2 mm (3.0 in)
1934	41.7 mm (1.6 in)
1935	44.7 mm (1.8 in)
1936	20.6 mm (0.8 in)
1937	22.9 mm (0.9 in)
1938	39.4 mm (1.6 in)
1939	76.2 mm (3.0 in)
1940	50.8 mm (2.0 in)
1941	33.0 mm (1.3 in)
1942	43.2 mm (1.7 in)
1943	48.0 mm (1.9 in)
1944	56.4 mm (2.2 in)
1945	14.2 mm (0.6 in)
1946	42.2 mm (1.7 in)
1947	59.9 mm (2.4 in)
1948	46.2 mm (1.8 in)
1949	30.2 mm (1.2 in)
1950	40.6 mm (1.6 in)
1951	39.9 mm (1.6 in)
1952	39.6 mm (1.6 in)
1953	44.0 mm (1.7 in)
1954	34.0 mm (1.3 in)
1955	34.6 mm (1.4 in)
1956	34.5 mm (1.4 in)
1957	29.0 mm (1.1 in)
1958	62.0 mm (2.4 in)
1959	71.0 mm (2.8 in)
1960	41.0 mm (1.6 in)
1961	38.0 mm (1.5 in)
1962	39.0 mm (1.5 in)
1963	55.0 mm (2.2 in)
1964	39.5 mm (1.6 in)
1965	37.0 mm (1.5 in)
1966	38.5 mm (1.5 in)
1967	58.0 mm (2.3 in)
1968	55.5 mm (2.2 in)
1969	65.5 mm (2.6 in)
1970	36.0 mm (1.4 in)
1971	38.0 mm (1.5 in)
1972	41.0 mm (1.6 in)
1973	43.5 mm (1.7 in)
1974	68.5 mm (2.7 in)
1975	28.6 mm (1.1 in)
1976	64.9 mm (2.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Groenfontein "Montagu", 1902 to 1976. The record is 155.5 mm (6.1 in) in 1974, marked on the chart; the median year is 61.5 mm (2.4 in).

Wettest five days (Rx5day) at Groenfontein "Montagu" by year
Year	Wettest five days (Rx5day)
1902	44.8 mm (1.8 in)
1903	35.6 mm (1.4 in)
1904	47.5 mm (1.9 in)
1905	51.9 mm (2.0 in)
1906	101.7 mm (4.0 in)
1907	58.7 mm (2.3 in)
1908	44.5 mm (1.8 in)
1909	53.2 mm (2.1 in)
1911	45.2 mm (1.8 in)
1912	69.5 mm (2.7 in)
1913	76.6 mm (3.0 in)
1914	28.9 mm (1.1 in)
1915	72.7 mm (2.9 in)
1916	29.7 mm (1.2 in)
1917	51.3 mm (2.0 in)
1918	97.3 mm (3.8 in)
1919	34.2 mm (1.3 in)
1920	54.1 mm (2.1 in)
1921	61.3 mm (2.4 in)
1922	33.6 mm (1.3 in)
1923	59.9 mm (2.4 in)
1924	56.1 mm (2.2 in)
1925	91.5 mm (3.6 in)
1926	44.0 mm (1.7 in)
1927	41.1 mm (1.6 in)
1928	45.0 mm (1.8 in)
1929	85.1 mm (3.4 in)
1930	55.2 mm (2.2 in)
1931	68.6 mm (2.7 in)
1932	70.1 mm (2.8 in)
1933	124.5 mm (4.9 in)
1934	60.9 mm (2.4 in)
1935	62.8 mm (2.5 in)
1936	27.7 mm (1.1 in)
1937	30.5 mm (1.2 in)
1938	47.0 mm (1.9 in)
1939	86.4 mm (3.4 in)
1940	65.3 mm (2.6 in)
1941	72.6 mm (2.9 in)
1942	62.7 mm (2.5 in)
1943	68.6 mm (2.7 in)
1944	71.6 mm (2.8 in)
1945	21.1 mm (0.8 in)
1946	65.3 mm (2.6 in)
1947	65.0 mm (2.6 in)
1948	73.5 mm (2.9 in)
1949	41.9 mm (1.6 in)
1950	71.9 mm (2.8 in)
1951	77.7 mm (3.1 in)
1952	88.4 mm (3.5 in)
1953	67.5 mm (2.7 in)
1954	61.5 mm (2.4 in)
1955	61.5 mm (2.4 in)
1956	51.5 mm (2.0 in)
1957	43.2 mm (1.7 in)
1958	62.0 mm (2.4 in)
1959	73.5 mm (2.9 in)
1960	43.7 mm (1.7 in)
1961	67.0 mm (2.6 in)
1962	85.2 mm (3.4 in)
1963	111.0 mm (4.4 in)
1964	67.5 mm (2.7 in)
1965	48.0 mm (1.9 in)
1966	49.0 mm (1.9 in)
1967	102.5 mm (4.0 in)
1968	91.7 mm (3.6 in)
1969	65.5 mm (2.6 in)
1970	36.0 mm (1.4 in)
1971	42.0 mm (1.7 in)
1972	41.5 mm (1.6 in)
1973	66.5 mm (2.6 in)
1974	155.5 mm (6.1 in)
1975	47.5 mm (1.9 in)
1976	152.4 mm (6.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Groenfontein "Montagu", 1902 to 1976. The record is 238 days in 1918, marked on the chart; the median year is 81 days.

Longest dry spell (CDD) at Groenfontein "Montagu" by year
Year	Longest dry spell (CDD)
1902	46 days
1903	195 days
1904	105 days
1905	92 days
1906	141 days
1907	106 days
1908	72 days
1909	108 days
1911	62 days
1912	130 days
1913	79 days
1914	153 days
1915	76 days
1916	102 days
1917	95 days
1918	238 days
1919	176 days
1920	69 days
1921	58 days
1922	92 days
1923	46 days
1924	47 days
1925	38 days
1926	61 days
1927	70 days
1928	119 days
1929	34 days
1930	66 days
1931	86 days
1932	71 days
1933	78 days
1934	77 days
1935	47 days
1936	47 days
1937	97 days
1938	100 days
1939	95 days
1940	136 days
1941	83 days
1942	112 days
1943	92 days
1944	94 days
1945	81 days
1946	39 days
1947	61 days
1948	78 days
1949	80 days
1950	86 days
1951	137 days
1952	36 days
1953	110 days
1954	105 days
1955	42 days
1956	59 days
1957	55 days
1958	111 days
1959	102 days
1960	53 days
1961	70 days
1962	110 days
1963	72 days
1964	81 days
1965	67 days
1966	115 days
1967	78 days
1968	112 days
1969	81 days
1970	56 days
1971	68 days
1972	134 days
1973	80 days
1974	83 days
1975	83 days
1976	75 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

68 years, 1903 to 1975

A day with at least 39.7 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 Groenfontein "Montagu": the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	39.7 mm (1.6 in)
5 years	52.4 mm (2.1 in)
10 years	61.3 mm (2.4 in)
25 years	73.3 mm (2.9 in)
50 years	82.6 mm (3.3 in)
100 years	92.4 mm (3.6 in)	Longer than the 68 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, 68 years of values from 1903 to 1975.

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: 76.2 mm (3.0 in) in 1918; 76.2 mm (3.0 in) in 1933; 76.2 mm (3.0 in) in 1939.

Download the Data

Data for Groenfontein "Montagu" standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Groenfontein "Montagu" 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 2026-10-13 (13 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