Mahalapye Weather Records (BC007137570)

Record envelope, standing records and threshold days for Mahalapye (BC007137570), Botswana, with 82 years of record.

Key Facts for Mahalapye

Mahalapye (BC007137570) is a weather station in Botswana at -23.12 latitude and 25.43 longitude, 1,005 m (3,297 ft) above sea level.
The station reports from 1911 to 1992, 82 years of record.
1,464 records set at Mahalapye still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Mahalapye set a daily record precipitation of 60.6 mm (2.4 in) on 22 December 1992.

About the Station

Location: Botswana, -23.12 latitude, 25.43 longitude.
Elevation: 1,005 m (3,297 ft).
Period of record: 1911 to 1992, 82 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 Mahalapye. 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 Mahalapye, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	40.5 C (104.9 F)	11.1 C (52.0 F)	n/a	n/a
Feb	40.4 C (104.7 F)	11.5 C (52.7 F)	n/a	n/a
Mar	39.7 C (103.5 F)	7.2 C (45.0 F)	n/a	n/a
Apr	36.5 C (97.7 F)	4.5 C (40.1 F)	n/a	n/a
May	35.6 C (96.1 F)	0.0 C (32.0 F)	n/a	n/a
Jun	31.0 C (87.8 F)	-4.5 C (23.9 F)	n/a	n/a
Jul	32.2 C (90.0 F)	-4.0 C (24.8 F)	n/a	n/a
Aug	37.0 C (98.6 F)	-6.0 C (21.2 F)	n/a	n/a
Sep	37.8 C (100.0 F)	1.2 C (34.2 F)	n/a	n/a
Oct	40.6 C (105.1 F)	6.2 C (43.2 F)	n/a	n/a
Nov	40.6 C (105.1 F)	8.6 C (47.5 F)	n/a	n/a
Dec	40.2 C (104.4 F)	11.1 C (52.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Mahalapye still stand. 1963 holds the most, with 174.

Standing records at Mahalapye by the year they were set
Year set	Standing records
1961	59
1962	44
1963	174
1964	45
1965	50
1966	53
1967	48
1968	47
1969	25
1971	1
1972	68
1973	68
1974	40
1975	43
1976	47
1977	49
1978	60
1979	58
1980	47
1981	42
1982	47
1983	72
1984	37
1985	36
1986	34
1987	76
1988	42
1989	40
1990	12

All-Time Record Progression

3 new records

3 all-time records were set at Mahalapye between 23 March 1948 and 2 February 1953. Each dot is a new record.

When Mahalapye set new all-time records
Date	Kind	Detail
1948-03-23	Record daily precipitation	Record daily precipitation 105.9 mm (4.2 in)
1951-04-21	Record daily precipitation	Record daily precipitation 121.9 mm (4.8 in)
1953-02-02	Record daily precipitation	Record daily precipitation 176.0 mm (6.9 in)

Wettest Day of Each Month

Feb: 176.0 mm (6.9 in)

The wettest day on record for each calendar month at Mahalapye. The most was 176.0 mm (6.9 in) on 2 February 1953.

Record daily precipitation for each month at Mahalapye
Month	Record daily precipitation (mm)	Date
Jan	93.4 mm (3.7 in)	5 January 1958
Feb	176.0 mm (6.9 in)	2 February 1953
Mar	130.1 mm (5.1 in)	22 March 1958
Apr	121.9 mm (4.8 in)	21 April 1951
May	30.5 mm (1.2 in)	19 May 1957
Jun	36.8 mm (1.4 in)	13 June 1949
Jul	39.1 mm (1.5 in)	3 July 1957
Aug	23.6 mm (0.9 in)	28 August 1979
Sep	29.0 mm (1.1 in)	14 September 1958
Oct	63.0 mm (2.5 in)	11 October 1937
Nov	85.3 mm (3.4 in)	29 November 1986
Dec	116.8 mm (4.6 in)	11 December 1955

Period of Record Coverage

1961 to 1990

29 years of record at Mahalapye, 1961 to 1990. 3 years have data for under 90 percent of days and are left out of rankings: 1969, 1971, 1990.

Days with data per year at Mahalapye
Year	Days with data	Share of year	Complete
1961	363	99%	Yes
1962	362	99%	Yes
1963	330	90%	Yes
1964	347	95%	Yes
1965	363	99%	Yes
1966	365	100%	Yes
1967	364	100%	Yes
1968	365	100%	Yes
1969	215	59%	No
1971	75	21%	No
1972	365	100%	Yes
1973	361	99%	Yes
1974	365	100%	Yes
1975	362	99%	Yes
1976	365	100%	Yes
1977	365	100%	Yes
1978	363	99%	Yes
1979	363	99%	Yes
1980	365	100%	Yes
1981	365	100%	Yes
1982	363	99%	Yes
1983	361	99%	Yes
1984	363	99%	Yes
1985	364	100%	Yes
1986	334	92%	Yes
1987	364	100%	Yes
1988	366	100%	Yes
1989	330	90%	Yes
1990	150	41%	No

Latest Records

Latest records at Mahalapye
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
22 December 1992	Mahalapye, BW	daily rain	60.6 mm (2.4 in)	14.4 mm (0.6 in)	11 years	21 of 100 (Routine)
31 October 1992	Mahalapye, BW	daily rain	19.1 mm (0.8 in)	4.1 mm (0.16 in)	21 years	18 of 100 (Routine)
23 October 1992	Mahalapye, BW	daily rain	17.0 mm (0.7 in)	3.0 mm (0.12 in)	56 years	20 of 100 (Routine)
14 October 1991	Mahalapye, BW	daily rain	22.4 mm (0.9 in)	9.7 mm (0.38 in)	12 years	20 of 100 (Routine)
9 June 1991	Mahalapye, BW	daily rain	21.2 mm (0.8 in)	18.9 mm (0.7 in)	73 years	20 of 100 (Routine)
2 December 1990	Mahalapye, BW	daily rain	27.7 mm (1.1 in)	0.8 mm (0.03 in)	12 years	11 of 100 (Routine)
9 October 1990	Mahalapye, BW	daily rain	15.1 mm (0.6 in)	1.1 mm (0.04 in)	60 years	20 of 100 (Routine)
8 March 1990	Mahalapye, BW	daily rain	55.5 mm (2.2 in)	2.2 mm (0.09 in)	48 years	23 of 100 (Routine)
9 December 1989	Mahalapye, BW	daily rain	40.7 mm (1.6 in)	17.8 mm (0.7 in)	52 years	35 of 100 (Notable)
5 June 1989	Mahalapye, BW	daily rain	3.5 mm (0.14 in)	3.5 mm (0.14 in)	76 years	20 of 100 (Routine)
4 June 1989	Mahalapye, BW	daily rain	20.3 mm (0.8 in)	20.3 mm (0.8 in)	76 years	20 of 100 (Routine)
14 March 1989	Mahalapye, BW	daily rain	28.0 mm (1.1 in)	19.9 mm (0.8 in)	40 years	31 of 100 (Routine)
22 February 1989	Mahalapye, BW	daily rain	79.7 mm (3.1 in)	49.7 mm (2.0 in)	23 years	43 of 100 (Notable)
15 December 1988	Mahalapye, BW	daily rain	36.4 mm (1.4 in)	10.9 mm (0.4 in)	13 years	18 of 100 (Routine)
15 September 1988	Mahalapye, BW	daily rain	3.6 mm (0.14 in)	0.5 mm (0.02 in)	49 years	20 of 100 (Routine)
24 April 1988	Mahalapye, BW	daily rain	44.7 mm (1.8 in)	32.5 mm (1.3 in)	56 years	48 of 100 (Notable)
11 March 1988	Mahalapye, BW	daily rain	33.4 mm (1.3 in)	2.9 mm (0.11 in)	56 years	24 of 100 (Routine)
9 March 1988	Mahalapye, BW	daily rain	66.4 mm (2.6 in)	19.4 mm (0.8 in)	56 years	35 of 100 (Notable)
17 February 1988	Mahalapye, BW	daily rain	34.5 mm (1.4 in)	3.5 mm (0.14 in)	20 years	15 of 100 (Routine)
16 February 1988	Mahalapye, BW	daily rain	74.9 mm (2.9 in)	53.8 mm (2.1 in)	9 years	44 of 100 (Notable)

Climate Trend

21 complete years, 1961 to 1988

One stripe for each of 21 complete years at Mahalapye, 1961 to 1988. Blue stripes are years cooler than the station's own mean of 20.6 C (69.1 F); red stripes are warmer. The coolest year was 1976, at 19.4 C (66.8 F), and the warmest was 1983, at 22.3 C (72.1 F). The strongest colour marks a difference of 1.7 C (3.1 F).

Annual mean temperature at Mahalapye as warming stripes, 1961 to 1988
Year	Annual mean temperature	Difference from the station mean
1961	20.3 C	-0.30 C
1962	20.8 C	+0.20 C
1965	20.9 C	+0.29 C
1966	20.8 C	+0.23 C
1967	19.8 C	-0.82 C
1968	20.4 C	-0.24 C
1972	20.5 C	-0.08 C
1973	21.1 C	+0.45 C
1974	19.8 C	-0.85 C
1976	19.4 C	-1.25 C
1977	20.3 C	-0.28 C
1978	19.8 C	-0.85 C
1979	20.8 C	+0.14 C
1980	19.8 C	-0.77 C
1981	20.1 C	-0.52 C
1982	21.2 C	+0.54 C
1983	22.3 C	+1.68 C
1984	21.2 C	+0.60 C
1985	21.3 C	+0.65 C
1987	22.0 C	+1.37 C
1988	20.4 C	-0.18 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1911 to 1992

Yearly extremes at Mahalapye: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.6 C (105.1 F)	1961	39.0 C (102.2 F)	29
Coldest night (TNn)	-6.0 C (21.2 F)	1980	-1.1 C (30.0 F)	29
Wettest day (Rx1day)	176.0 mm (6.9 in)	1953	56.1 mm (2.2 in)	82
Wettest five days (Rx5day)	306.5 mm (12.1 in)	1953	84.4 mm (3.3 in)	82
Longest dry spell (CDD)	231 days	1966	121 days	82

Hottest day (TXx)

The hottest day of the year at Mahalapye, 1911 to 1992. The record is 40.6 C (105.1 F) in 1961, marked on the chart; the median year is 39.0 C (102.2 F).

Hottest day (TXx) at Mahalapye by year
Year	Hottest day (TXx)
1911	n/a
1912	n/a
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	40.6 C (105.1 F)
1962	40.6 C (105.1 F)
1963	39.7 C (103.5 F)
1964	37.8 C (100.0 F)
1965	39.3 C (102.7 F)
1966	39.5 C (103.1 F)
1967	39.0 C (102.2 F)
1968	40.3 C (104.5 F)
1969	40.5 C (104.9 F)
1970	n/a
1971	37.3 C (99.1 F)
1972	39.5 C (103.1 F)
1973	39.0 C (102.2 F)
1974	37.6 C (99.7 F)
1975	37.0 C (98.6 F)
1976	38.4 C (101.1 F)
1977	38.5 C (101.3 F)
1978	37.6 C (99.7 F)
1979	38.0 C (100.4 F)
1980	37.9 C (100.2 F)
1981	40.6 C (105.1 F)
1982	40.2 C (104.4 F)
1983	40.4 C (104.7 F)
1984	39.2 C (102.6 F)
1985	38.2 C (100.8 F)
1986	37.0 C (98.6 F)
1987	38.1 C (100.6 F)
1988	39.3 C (102.7 F)
1989	38.4 C (101.1 F)
1990	36.7 C (98.1 F)
1991	n/a
1992	n/a

Coldest night (TNn)

The coldest night of the year at Mahalapye, 1911 to 1992. The record is -6.0 C (21.2 F) in 1980, marked on the chart; the median year is -1.1 C (30.0 F).

Coldest night (TNn) at Mahalapye by year
Year	Coldest night (TNn)
1911	n/a
1912	n/a
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	-1.1 C (30.0 F)
1962	-1.7 C (28.9 F)
1963	-0.6 C (30.9 F)
1964	0.0 C (32.0 F)
1965	-0.5 C (31.1 F)
1966	1.4 C (34.5 F)
1967	-3.3 C (26.1 F)
1968	-2.2 C (28.0 F)
1969	-1.0 C (30.2 F)
1970	n/a
1971	10.8 C (51.4 F)
1972	-3.2 C (26.2 F)
1973	-1.0 C (30.2 F)
1974	-1.4 C (29.5 F)
1975	-2.5 C (27.5 F)
1976	-3.0 C (26.6 F)
1977	-2.5 C (27.5 F)
1978	-4.5 C (23.9 F)
1979	-4.0 C (24.8 F)
1980	-6.0 C (21.2 F)
1981	-1.6 C (29.1 F)
1982	0.0 C (32.0 F)
1983	2.0 C (35.6 F)
1984	0.5 C (32.9 F)
1985	0.3 C (32.5 F)
1986	2.1 C (35.8 F)
1987	-0.2 C (31.6 F)
1988	-2.4 C (27.7 F)
1989	-1.4 C (29.5 F)
1990	5.1 C (41.2 F)
1991	n/a
1992	n/a

Wettest day (Rx1day)

The wettest day of the year at Mahalapye, 1911 to 1992. The record is 176.0 mm (6.9 in) in 1953, marked on the chart; the median year is 56.1 mm (2.2 in).

Wettest day (Rx1day) at Mahalapye by year
Year	Wettest day (Rx1day)
1911	48.3 mm (1.9 in)
1912	41.7 mm (1.6 in)
1913	34.0 mm (1.3 in)
1914	64.8 mm (2.6 in)
1915	81.8 mm (3.2 in)
1916	35.6 mm (1.4 in)
1917	49.3 mm (1.9 in)
1918	67.8 mm (2.7 in)
1919	53.9 mm (2.1 in)
1920	57.2 mm (2.3 in)
1921	93.0 mm (3.7 in)
1922	49.5 mm (1.9 in)
1923	59.7 mm (2.4 in)
1924	52.3 mm (2.1 in)
1925	41.9 mm (1.6 in)
1926	57.9 mm (2.3 in)
1927	31.8 mm (1.3 in)
1928	69.9 mm (2.8 in)
1929	44.7 mm (1.8 in)
1930	39.6 mm (1.6 in)
1931	80.0 mm (3.1 in)
1932	47.0 mm (1.9 in)
1933	41.9 mm (1.6 in)
1934	93.5 mm (3.7 in)
1935	25.4 mm (1.0 in)
1936	64.3 mm (2.5 in)
1937	67.3 mm (2.6 in)
1938	47.2 mm (1.9 in)
1939	59.7 mm (2.4 in)
1940	49.3 mm (1.9 in)
1941	49.5 mm (1.9 in)
1942	72.4 mm (2.9 in)
1943	58.2 mm (2.3 in)
1944	46.0 mm (1.8 in)
1945	58.4 mm (2.3 in)
1946	46.2 mm (1.8 in)
1947	82.6 mm (3.3 in)
1948	105.9 mm (4.2 in)
1949	61.2 mm (2.4 in)
1950	70.4 mm (2.8 in)
1951	121.9 mm (4.8 in)
1952	54.9 mm (2.2 in)
1953	176.0 mm (6.9 in)
1954	42.4 mm (1.7 in)
1955	116.8 mm (4.6 in)
1956	55.4 mm (2.2 in)
1957	45.7 mm (1.8 in)
1958	130.1 mm (5.1 in)
1959	68.6 mm (2.7 in)
1960	63.1 mm (2.5 in)
1961	49.0 mm (1.9 in)
1962	27.5 mm (1.1 in)
1963	68.0 mm (2.7 in)
1964	30.0 mm (1.2 in)
1965	18.0 mm (0.7 in)
1966	30.0 mm (1.2 in)
1967	75.0 mm (3.0 in)
1968	43.9 mm (1.7 in)
1969	43.3 mm (1.7 in)
1970	47.2 mm (1.9 in)
1971	74.6 mm (2.9 in)
1972	33.0 mm (1.3 in)
1973	48.4 mm (1.9 in)
1974	76.5 mm (3.0 in)
1975	76.9 mm (3.0 in)
1976	60.6 mm (2.4 in)
1977	56.7 mm (2.2 in)
1978	80.4 mm (3.2 in)
1979	33.7 mm (1.3 in)
1980	55.2 mm (2.2 in)
1981	82.4 mm (3.2 in)
1982	45.6 mm (1.8 in)
1983	29.7 mm (1.2 in)
1984	74.3 mm (2.9 in)
1985	31.6 mm (1.2 in)
1986	85.3 mm (3.4 in)
1987	19.8 mm (0.8 in)
1988	96.7 mm (3.8 in)
1989	79.7 mm (3.1 in)
1990	55.5 mm (2.2 in)
1991	67.6 mm (2.7 in)
1992	60.6 mm (2.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Mahalapye, 1911 to 1992. The record is 306.5 mm (12.1 in) in 1953, marked on the chart; the median year is 84.4 mm (3.3 in).

Wettest five days (Rx5day) at Mahalapye by year
Year	Wettest five days (Rx5day)
1911	64.8 mm (2.6 in)
1912	67.1 mm (2.6 in)
1913	47.5 mm (1.9 in)
1914	89.7 mm (3.5 in)
1915	149.1 mm (5.9 in)
1916	63.6 mm (2.5 in)
1917	95.8 mm (3.8 in)
1918	151.2 mm (6.0 in)
1919	80.0 mm (3.1 in)
1920	84.9 mm (3.3 in)
1921	156.1 mm (6.1 in)
1922	51.5 mm (2.0 in)
1923	170.0 mm (6.7 in)
1924	93.7 mm (3.7 in)
1925	70.7 mm (2.8 in)
1926	57.9 mm (2.3 in)
1927	76.6 mm (3.0 in)
1928	81.1 mm (3.2 in)
1929	65.5 mm (2.6 in)
1930	55.6 mm (2.2 in)
1931	159.8 mm (6.3 in)
1932	96.6 mm (3.8 in)
1933	73.6 mm (2.9 in)
1934	105.9 mm (4.2 in)
1935	48.1 mm (1.9 in)
1936	82.4 mm (3.2 in)
1937	108.7 mm (4.3 in)
1938	52.8 mm (2.1 in)
1939	145.1 mm (5.7 in)
1940	138.2 mm (5.4 in)
1941	90.4 mm (3.6 in)
1942	123.7 mm (4.9 in)
1943	80.5 mm (3.2 in)
1944	86.5 mm (3.4 in)
1945	87.1 mm (3.4 in)
1946	105.6 mm (4.2 in)
1947	121.2 mm (4.8 in)
1948	179.1 mm (7.1 in)
1949	75.5 mm (3.0 in)
1950	82.9 mm (3.3 in)
1951	121.9 mm (4.8 in)
1952	78.6 mm (3.1 in)
1953	306.5 mm (12.1 in)
1954	55.7 mm (2.2 in)
1955	154.1 mm (6.1 in)
1956	84.5 mm (3.3 in)
1957	74.0 mm (2.9 in)
1958	141.5 mm (5.6 in)
1959	73.9 mm (2.9 in)
1960	112.6 mm (4.4 in)
1961	64.0 mm (2.5 in)
1962	62.5 mm (2.5 in)
1963	88.5 mm (3.5 in)
1964	50.5 mm (2.0 in)
1965	27.0 mm (1.1 in)
1966	54.0 mm (2.1 in)
1967	152.9 mm (6.0 in)
1968	84.0 mm (3.3 in)
1969	62.1 mm (2.4 in)
1970	122.0 mm (4.8 in)
1971	90.8 mm (3.6 in)
1972	69.5 mm (2.7 in)
1973	73.4 mm (2.9 in)
1974	123.5 mm (4.9 in)
1975	102.4 mm (4.0 in)
1976	86.2 mm (3.4 in)
1977	96.5 mm (3.8 in)
1978	97.6 mm (3.8 in)
1979	58.1 mm (2.3 in)
1980	77.0 mm (3.0 in)
1981	127.1 mm (5.0 in)
1982	78.2 mm (3.1 in)
1983	30.9 mm (1.2 in)
1984	129.9 mm (5.1 in)
1985	55.7 mm (2.2 in)
1986	100.6 mm (4.0 in)
1987	37.8 mm (1.5 in)
1988	284.1 mm (11.2 in)
1989	118.8 mm (4.7 in)
1990	71.9 mm (2.8 in)
1991	83.9 mm (3.3 in)
1992	84.3 mm (3.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Mahalapye, 1911 to 1992. The record is 231 days in 1966, marked on the chart; the median year is 121 days.

Longest dry spell (CDD) at Mahalapye by year
Year	Longest dry spell (CDD)
1911	17 days
1912	119 days
1913	136 days
1914	115 days
1915	54 days
1916	168 days
1917	63 days
1918	121 days
1919	110 days
1920	193 days
1921	151 days
1922	78 days
1923	135 days
1924	143 days
1925	75 days
1926	78 days
1927	98 days
1928	124 days
1929	120 days
1930	201 days
1931	94 days
1932	150 days
1933	135 days
1934	149 days
1935	118 days
1936	147 days
1937	139 days
1938	65 days
1939	39 days
1940	91 days
1941	118 days
1942	70 days
1943	62 days
1944	122 days
1945	174 days
1946	196 days
1947	102 days
1948	123 days
1949	94 days
1950	103 days
1951	80 days
1952	101 days
1953	159 days
1954	158 days
1955	104 days
1956	126 days
1957	51 days
1958	145 days
1959	166 days
1960	73 days
1961	81 days
1962	176 days
1963	102 days
1964	138 days
1965	167 days
1966	231 days
1967	133 days
1968	151 days
1969	78 days
1970	92 days
1971	117 days
1972	127 days
1973	145 days
1974	119 days
1975	144 days
1976	145 days
1977	97 days
1978	140 days
1979	150 days
1980	168 days
1981	112 days
1982	90 days
1983	64 days
1984	80 days
1985	168 days
1986	116 days
1987	135 days
1988	142 days
1989	123 days
1990	115 days
1991	72 days
1992	156 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

79 years, 1912 to 1992

A day with at least 56.2 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 143.4 mm (5.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Mahalapye: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	56.2 mm (2.2 in)
5 years	78.6 mm (3.1 in)
10 years	93.8 mm (3.7 in)
25 years	113.4 mm (4.5 in)
50 years	128.3 mm (5.1 in)
100 years	143.4 mm (5.6 in)	Longer than the 79 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, 79 years of values from 1912 to 1992.

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: 176.0 mm (6.9 in) in 1953; 130.1 mm (5.1 in) in 1958; 121.9 mm (4.8 in) in 1951.

Download the Data

Data for Mahalapye standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mahalapye 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 2026-10-13. Last revised 13 October 2026 (2026-10-13).