Mayfern Weather Records (SF005560880)

Record envelope, standing records and threshold days for Mayfern (SF005560880), South Africa, with 68 years of record.

Key Facts for Mayfern

Mayfern (SF005560880) is a weather station in South Africa at -25.48 latitude and 31.03 longitude, 579 m (1,900 ft) above sea level.
The station reports from 1930 to 1997, 68 years of record.
0 records set at Mayfern still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Mayfern set a daily record precipitation of 15.5 mm (0.6 in) on 5 August 1997.

About the Station

Location: South Africa, -25.48 latitude, 31.03 longitude.
Elevation: 579 m (1,900 ft).
Period of record: 1930 to 1997, 68 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 Mayfern. 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 Mayfern, 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 Mayfern still stand.

Wettest Day of Each Month

Feb: 333.2 mm (13.1 in)

The wettest day on record for each calendar month at Mayfern. The most was 333.2 mm (13.1 in) on 4 February 1939.

Record daily precipitation for each month at Mayfern
Month	Record daily precipitation (mm)	Date
Jan	177.2 mm (7.0 in)	4 January 1958
Feb	333.2 mm (13.1 in)	4 February 1939
Mar	79.5 mm (3.1 in)	24 March 1961
Apr	76.2 mm (3.0 in)	7 April 1941
May	60.5 mm (2.4 in)	31 May 1942
Jun	41.5 mm (1.6 in)	4 June 1989
Jul	45.5 mm (1.8 in)	3 July 1943
Aug	49.8 mm (2.0 in)	20 August 1951
Sep	91.0 mm (3.6 in)	29 September 1973
Oct	100.3 mm (3.9 in)	29 October 1934
Nov	84.5 mm (3.3 in)	12 November 1994
Dec	103.9 mm (4.1 in)	30 December 1938

Latest Records

Latest records at Mayfern
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
5 August 1997	Mayfern, ZA	daily rain	15.5 mm (0.6 in)	13.5 mm (0.5 in)	38 years	20 of 100 (Routine)
31 July 1997	Mayfern, ZA	daily rain	18.6 mm (0.7 in)	17.1 mm (0.7 in)	12 years	20 of 100 (Routine)
20 April 1997	Mayfern, ZA	daily rain	29.5 mm (1.2 in)	13.0 mm (0.5 in)	43 years	28 of 100 (Routine)
4 April 1997	Mayfern, ZA	daily rain	34.4 mm (1.4 in)	6.2 mm (0.24 in)	59 years	27 of 100 (Routine)
20 March 1997	Mayfern, ZA	daily rain	26.5 mm (1.0 in)	1.0 mm (0.04 in)	24 years	13 of 100 (Routine)
11 March 1997	Mayfern, ZA	daily rain	32.5 mm (1.3 in)	1.8 mm (0.07 in)	52 years	22 of 100 (Routine)
13 November 1996	Mayfern, ZA	daily rain	51.8 mm (2.0 in)	26.8 mm (1.1 in)	34 years	39 of 100 (Notable)
23 October 1996	Mayfern, ZA	daily rain	30.4 mm (1.2 in)	7.4 mm (0.29 in)	33 years	21 of 100 (Routine)
24 July 1996	Mayfern, ZA	daily rain	4.0 mm (0.16 in)	4.0 mm (0.16 in)	65 years	20 of 100 (Routine)
16 May 1996	Mayfern, ZA	daily rain	14.7 mm (0.6 in)	10.2 mm (0.4 in)	24 years	20 of 100 (Routine)
12 February 1996	Mayfern, ZA	daily rain	59.3 mm (2.3 in)	19.3 mm (0.8 in)	20 years	19 of 100 (Routine)
11 February 1996	Mayfern, ZA	daily rain	146.5 mm (5.8 in)	61.4 mm (2.4 in)	42 years	43 of 100 (Notable)
9 February 1996	Mayfern, ZA	daily rain	65.5 mm (2.6 in)	21.6 mm (0.9 in)	58 years	31 of 100 (Routine)
25 January 1996	Mayfern, ZA	daily rain	65.5 mm (2.6 in)	21.2 mm (0.8 in)	14 years	23 of 100 (Routine)
24 January 1996	Mayfern, ZA	daily rain	66.2 mm (2.6 in)	43.8 mm (1.7 in)	58 years	51 of 100 (Notable)
7 January 1996	Mayfern, ZA	daily rain	55.5 mm (2.2 in)	25.5 mm (1.0 in)	26 years	30 of 100 (Routine)
25 November 1995	Mayfern, ZA	daily rain	31.0 mm (1.2 in)	8.1 mm (0.32 in)	62 years	31 of 100 (Routine)
18 November 1995	Mayfern, ZA	daily rain	26.8 mm (1.1 in)	5.0 mm (0.20 in)	61 years	28 of 100 (Routine)
30 April 1995	Mayfern, ZA	daily rain	4.8 mm (0.19 in)	1.3 mm (0.05 in)	12 years	10 of 100 (Routine)
12 November 1994	Mayfern, ZA	monthly rain	84.5 mm (3.3 in)	12.9 mm (0.5 in)	47 years	41 of 100 (Notable)

Extremes by Year

1930 to 1997

Yearly extremes at Mayfern: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	333.2 mm (13.1 in)	1939	63.7 mm (2.5 in)	68
Wettest five days (Rx5day)	502.4 mm (19.8 in)	1985	97.6 mm (3.8 in)	68
Longest dry spell (CDD)	165 days	1937	62 days	68

Wettest day (Rx1day)

The wettest day of the year at Mayfern, 1930 to 1997. The record is 333.2 mm (13.1 in) in 1939, marked on the chart; the median year is 63.7 mm (2.5 in).

Wettest day (Rx1day) at Mayfern by year
Year	Wettest day (Rx1day)
1930	29.5 mm (1.2 in)
1931	55.1 mm (2.2 in)
1932	26.2 mm (1.0 in)
1933	65.5 mm (2.6 in)
1934	100.3 mm (3.9 in)
1935	32.8 mm (1.3 in)
1936	35.8 mm (1.4 in)
1937	89.4 mm (3.5 in)
1938	103.9 mm (4.1 in)
1939	333.2 mm (13.1 in)
1940	50.8 mm (2.0 in)
1941	76.2 mm (3.0 in)
1942	60.5 mm (2.4 in)
1943	52.6 mm (2.1 in)
1944	68.6 mm (2.7 in)
1945	64.3 mm (2.5 in)
1946	113.8 mm (4.5 in)
1947	71.6 mm (2.8 in)
1948	61.5 mm (2.4 in)
1949	68.6 mm (2.7 in)
1950	45.7 mm (1.8 in)
1951	64.8 mm (2.6 in)
1952	40.6 mm (1.6 in)
1953	85.1 mm (3.4 in)
1954	33.5 mm (1.3 in)
1955	77.7 mm (3.1 in)
1956	77.8 mm (3.1 in)
1957	66.8 mm (2.6 in)
1958	177.2 mm (7.0 in)
1959	32.7 mm (1.3 in)
1960	62.9 mm (2.5 in)
1961	79.5 mm (3.1 in)
1962	48.8 mm (1.9 in)
1963	51.5 mm (2.0 in)
1964	35.5 mm (1.4 in)
1965	51.0 mm (2.0 in)
1966	81.3 mm (3.2 in)
1967	89.5 mm (3.5 in)
1968	68.5 mm (2.7 in)
1969	56.2 mm (2.2 in)
1970	63.0 mm (2.5 in)
1971	73.5 mm (2.9 in)
1972	52.5 mm (2.1 in)
1973	94.0 mm (3.7 in)
1974	56.5 mm (2.2 in)
1975	72.5 mm (2.9 in)
1976	67.5 mm (2.7 in)
1977	68.0 mm (2.7 in)
1978	44.0 mm (1.7 in)
1979	59.0 mm (2.3 in)
1980	119.0 mm (4.7 in)
1981	48.5 mm (1.9 in)
1982	36.0 mm (1.4 in)
1983	66.0 mm (2.6 in)
1984	101.0 mm (4.0 in)
1985	302.0 mm (11.9 in)
1986	48.0 mm (1.9 in)
1987	47.2 mm (1.9 in)
1988	57.6 mm (2.3 in)
1989	60.0 mm (2.4 in)
1990	67.0 mm (2.6 in)
1991	60.0 mm (2.4 in)
1992	49.5 mm (1.9 in)
1993	78.5 mm (3.1 in)
1994	84.5 mm (3.3 in)
1995	51.1 mm (2.0 in)
1996	146.5 mm (5.8 in)
1997	34.4 mm (1.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Mayfern, 1930 to 1997. The record is 502.4 mm (19.8 in) in 1985, marked on the chart; the median year is 97.6 mm (3.8 in).

Wettest five days (Rx5day) at Mayfern by year
Year	Wettest five days (Rx5day)
1930	46.3 mm (1.8 in)
1931	109.7 mm (4.3 in)
1932	43.7 mm (1.7 in)
1933	143.9 mm (5.7 in)
1934	101.6 mm (4.0 in)
1935	48.6 mm (1.9 in)
1936	64.3 mm (2.5 in)
1937	238.7 mm (9.4 in)
1938	193.8 mm (7.6 in)
1939	388.1 mm (15.3 in)
1940	82.6 mm (3.3 in)
1941	152.2 mm (6.0 in)
1942	101.0 mm (4.0 in)
1943	72.4 mm (2.9 in)
1944	78.8 mm (3.1 in)
1945	97.3 mm (3.8 in)
1946	151.5 mm (6.0 in)
1947	97.8 mm (3.9 in)
1948	78.2 mm (3.1 in)
1949	76.2 mm (3.0 in)
1950	76.0 mm (3.0 in)
1951	95.3 mm (3.8 in)
1952	83.3 mm (3.3 in)
1953	145.0 mm (5.7 in)
1954	45.2 mm (1.8 in)
1955	119.6 mm (4.7 in)
1956	117.1 mm (4.6 in)
1957	79.8 mm (3.1 in)
1958	202.4 mm (8.0 in)
1959	60.6 mm (2.4 in)
1960	130.5 mm (5.1 in)
1961	88.5 mm (3.5 in)
1962	81.5 mm (3.2 in)
1963	114.5 mm (4.5 in)
1964	64.5 mm (2.5 in)
1965	59.0 mm (2.3 in)
1966	98.3 mm (3.9 in)
1967	106.5 mm (4.2 in)
1968	125.0 mm (4.9 in)
1969	84.8 mm (3.3 in)
1970	81.5 mm (3.2 in)
1971	164.3 mm (6.5 in)
1972	112.5 mm (4.4 in)
1973	193.6 mm (7.6 in)
1974	57.0 mm (2.2 in)
1975	219.2 mm (8.6 in)
1976	133.0 mm (5.2 in)
1977	99.2 mm (3.9 in)
1978	152.2 mm (6.0 in)
1979	73.3 mm (2.9 in)
1980	167.0 mm (6.6 in)
1981	111.1 mm (4.4 in)
1982	50.4 mm (2.0 in)
1983	82.0 mm (3.2 in)
1984	152.5 mm (6.0 in)
1985	502.4 mm (19.8 in)
1986	87.1 mm (3.4 in)
1987	77.3 mm (3.0 in)
1988	94.8 mm (3.7 in)
1989	120.9 mm (4.8 in)
1990	81.4 mm (3.2 in)
1991	134.7 mm (5.3 in)
1992	70.7 mm (2.8 in)
1993	127.5 mm (5.0 in)
1994	95.7 mm (3.8 in)
1995	91.3 mm (3.6 in)
1996	306.0 mm (12.0 in)
1997	68.6 mm (2.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Mayfern, 1930 to 1997. The record is 165 days in 1937, marked on the chart; the median year is 62 days.

Longest dry spell (CDD) at Mayfern by year
Year	Longest dry spell (CDD)
1930	25 days
1931	34 days
1932	30 days
1933	56 days
1934	35 days
1935	79 days
1936	108 days
1937	165 days
1938	45 days
1939	51 days
1940	51 days
1941	85 days
1942	67 days
1943	46 days
1944	65 days
1945	135 days
1946	139 days
1947	98 days
1948	148 days
1949	88 days
1950	78 days
1951	44 days
1952	34 days
1953	111 days
1954	52 days
1955	106 days
1956	59 days
1957	21 days
1958	51 days
1959	37 days
1960	93 days
1961	47 days
1962	73 days
1963	57 days
1964	76 days
1965	39 days
1966	26 days
1967	43 days
1968	31 days
1969	77 days
1970	39 days
1971	44 days
1972	139 days
1973	51 days
1974	53 days
1975	51 days
1976	94 days
1977	106 days
1978	65 days
1979	54 days
1980	80 days
1981	58 days
1982	85 days
1983	72 days
1984	65 days
1985	88 days
1986	76 days
1987	75 days
1988	39 days
1989	70 days
1990	70 days
1991	48 days
1992	110 days
1993	42 days
1994	122 days
1995	96 days
1996	52 days
1997	25 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

60 years, 1933 to 1996

A day with at least 61.3 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 291.8 mm (11.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Mayfern: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	61.3 mm (2.4 in)
5 years	89.9 mm (3.5 in)
10 years	117.9 mm (4.6 in)
25 years	168.4 mm (6.6 in)
50 years	221.3 mm (8.7 in)
100 years	291.8 mm (11.5 in)	Longer than the 60 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, 60 years of values from 1933 to 1996.

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: 333.2 mm (13.1 in) in 1939; 302.0 mm (11.9 in) in 1985; 177.2 mm (7.0 in) in 1958.

Download the Data

Data for Mayfern standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mayfern 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 2026-10-14 (14 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