Ceylon (Bos) Weather Records (SF005554550)

Record envelope, standing records and threshold days for Ceylon (Bos) (SF005554550), South Africa, with 67 years of record.

Key Facts for Ceylon (Bos)

Ceylon (Bos) (SF005554550) is a weather station in South Africa at -25.10 latitude and 30.75 longitude, 1,030 m (3,379 ft) above sea level.
The station reports from 1931 to 1997, 67 years of record.
0 records set at Ceylon (Bos) still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Ceylon (Bos) set a daily record precipitation of 28.9 mm (1.1 in) on 24 October 1997.

About the Station

Location: South Africa, -25.10 latitude, 30.75 longitude.
Elevation: 1,030 m (3,379 ft).
Period of record: 1931 to 1997, 67 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 Ceylon (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 Ceylon (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 Ceylon (Bos) still stand.

Wettest Day of Each Month

Jan: 157.5 mm (6.2 in)

The wettest day on record for each calendar month at Ceylon (Bos). The most was 157.5 mm (6.2 in) on 5 January 1958.

Record daily precipitation for each month at Ceylon (Bos)
Month	Record daily precipitation (mm)	Date
Jan	157.5 mm (6.2 in)	5 January 1958
Feb	151.8 mm (6.0 in)	8 February 1985
Mar	118.0 mm (4.6 in)	1 March 1993
Apr	104.1 mm (4.1 in)	6 April 1941
May	46.0 mm (1.8 in)	13 May 1972
Jun	50.0 mm (2.0 in)	28 June 1956
Jul	50.3 mm (2.0 in)	3 July 1943
Aug	74.9 mm (2.9 in)	20 August 1951
Sep	96.0 mm (3.8 in)	29 September 1973
Oct	90.2 mm (3.6 in)	31 October 1968
Nov	123.2 mm (4.9 in)	25 November 1979
Dec	96.0 mm (3.8 in)	22 December 1939

Latest Records

Latest records at Ceylon (Bos)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
24 October 1997	Ceylon (Bos), ZA	daily rain	28.9 mm (1.1 in)	3.4 mm (0.13 in)	19 years	14 of 100 (Routine)
31 July 1997	Ceylon (Bos), ZA	daily rain	6.0 mm (0.24 in)	5.0 mm (0.20 in)	12 years	14 of 100 (Routine)
28 May 1997	Ceylon (Bos), ZA	daily rain	25.5 mm (1.0 in)	1.1 mm (0.04 in)	26 years	14 of 100 (Routine)
8 May 1997	Ceylon (Bos), ZA	daily rain	23.0 mm (0.9 in)	11.0 mm (0.4 in)	34 years	20 of 100 (Routine)
26 March 1997	Ceylon (Bos), ZA	daily rain	63.0 mm (2.5 in)	27.5 mm (1.1 in)	26 years	30 of 100 (Routine)
9 March 1997	Ceylon (Bos), ZA	daily rain	56.8 mm (2.2 in)	14.8 mm (0.6 in)	42 years	27 of 100 (Routine)
12 January 1997	Ceylon (Bos), ZA	daily rain	43.5 mm (1.7 in)	15.1 mm (0.6 in)	48 years	27 of 100 (Routine)
8 December 1996	Ceylon (Bos), ZA	daily rain	70.0 mm (2.8 in)	13.5 mm (0.5 in)	19 years	20 of 100 (Routine)
19 August 1996	Ceylon (Bos), ZA	daily rain	9.0 mm (0.35 in)	0.6 mm (0.02 in)	55 years	20 of 100 (Routine)
24 July 1996	Ceylon (Bos), ZA	daily rain	8.4 mm (0.33 in)	6.9 mm (0.27 in)	61 years	20 of 100 (Routine)
16 July 1996	Ceylon (Bos), ZA	daily rain	18.4 mm (0.7 in)	3.2 mm (0.13 in)	57 years	20 of 100 (Routine)
23 June 1996	Ceylon (Bos), ZA	daily rain	2.5 mm (0.10 in)	1.7 mm (0.07 in)	44 years	20 of 100 (Routine)
15 May 1996	Ceylon (Bos), ZA	daily rain	4.4 mm (0.17 in)	2.6 mm (0.10 in)	37 years	20 of 100 (Routine)
15 February 1996	Ceylon (Bos), ZA	daily rain	49.0 mm (1.9 in)	17.0 mm (0.7 in)	41 years	27 of 100 (Routine)
11 January 1996	Ceylon (Bos), ZA	daily rain	50.4 mm (2.0 in)	0.4 mm (0.02 in)	28 years	14 of 100 (Routine)
10 December 1995	Ceylon (Bos), ZA	daily rain	76.5 mm (3.0 in)	25.5 mm (1.0 in)	24 years	30 of 100 (Routine)
17 August 1995	Ceylon (Bos), ZA	daily rain	10.0 mm (0.4 in)	0.5 mm (0.02 in)	33 years	16 of 100 (Routine)
15 August 1995	Ceylon (Bos), ZA	daily rain	11.0 mm (0.4 in)	5.0 mm (0.20 in)	18 years	16 of 100 (Routine)
3 May 1995	Ceylon (Bos), ZA	daily rain	12.5 mm (0.5 in)	7.8 mm (0.31 in)	24 years	20 of 100 (Routine)
30 April 1995	Ceylon (Bos), ZA	daily rain	39.0 mm (1.5 in)	29.3 mm (1.2 in)	34 years	39 of 100 (Notable)

Extremes by Year

1931 to 1997

Yearly extremes at Ceylon (Bos): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	157.5 mm (6.2 in)	1958	82.0 mm (3.2 in)	67
Wettest five days (Rx5day)	265.5 mm (10.5 in)	1978	130.1 mm (5.1 in)	67
Longest dry spell (CDD)	119 days	1994	43 days	67

Wettest day (Rx1day)

The wettest day of the year at Ceylon (Bos), 1931 to 1997. The record is 157.5 mm (6.2 in) in 1958, marked on the chart; the median year is 82.0 mm (3.2 in).

Wettest day (Rx1day) at Ceylon (Bos) by year
Year	Wettest day (Rx1day)
1931	54.4 mm (2.1 in)
1932	56.9 mm (2.2 in)
1933	61.2 mm (2.4 in)
1934	120.9 mm (4.8 in)
1935	97.3 mm (3.8 in)
1936	69.3 mm (2.7 in)
1937	101.6 mm (4.0 in)
1938	96.5 mm (3.8 in)
1939	104.6 mm (4.1 in)
1940	64.8 mm (2.6 in)
1941	104.1 mm (4.1 in)
1942	85.1 mm (3.4 in)
1943	60.7 mm (2.4 in)
1944	72.6 mm (2.9 in)
1945	62.0 mm (2.4 in)
1946	157.0 mm (6.2 in)
1947	44.5 mm (1.8 in)
1948	52.6 mm (2.1 in)
1949	54.1 mm (2.1 in)
1950	61.0 mm (2.4 in)
1951	74.9 mm (2.9 in)
1952	79.0 mm (3.1 in)
1953	27.0 mm (1.1 in)
1954	94.5 mm (3.7 in)
1955	97.0 mm (3.8 in)
1956	60.0 mm (2.4 in)
1957	78.5 mm (3.1 in)
1958	157.5 mm (6.2 in)
1959	57.0 mm (2.2 in)
1960	119.0 mm (4.7 in)
1961	79.0 mm (3.1 in)
1962	46.5 mm (1.8 in)
1963	79.8 mm (3.1 in)
1964	85.6 mm (3.4 in)
1965	118.5 mm (4.7 in)
1966	93.5 mm (3.7 in)
1967	76.6 mm (3.0 in)
1968	90.2 mm (3.6 in)
1969	57.8 mm (2.3 in)
1970	61.3 mm (2.4 in)
1971	99.8 mm (3.9 in)
1972	98.0 mm (3.9 in)
1973	96.0 mm (3.8 in)
1974	126.5 mm (5.0 in)
1975	37.1 mm (1.5 in)
1976	82.0 mm (3.2 in)
1977	81.8 mm (3.2 in)
1978	91.5 mm (3.6 in)
1979	123.2 mm (4.9 in)
1980	91.5 mm (3.6 in)
1981	117.5 mm (4.6 in)
1982	94.2 mm (3.7 in)
1983	99.4 mm (3.9 in)
1984	86.0 mm (3.4 in)
1985	151.8 mm (6.0 in)
1986	48.6 mm (1.9 in)
1987	73.0 mm (2.9 in)
1988	102.0 mm (4.0 in)
1989	86.5 mm (3.4 in)
1990	66.5 mm (2.6 in)
1991	88.1 mm (3.5 in)
1992	54.6 mm (2.1 in)
1993	118.0 mm (4.6 in)
1994	96.3 mm (3.8 in)
1995	76.5 mm (3.0 in)
1996	70.0 mm (2.8 in)
1997	63.0 mm (2.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ceylon (Bos), 1931 to 1997. The record is 265.5 mm (10.5 in) in 1978, marked on the chart; the median year is 130.1 mm (5.1 in).

Wettest five days (Rx5day) at Ceylon (Bos) by year
Year	Wettest five days (Rx5day)
1931	124.5 mm (4.9 in)
1932	88.4 mm (3.5 in)
1933	137.9 mm (5.4 in)
1934	160.8 mm (6.3 in)
1935	109.5 mm (4.3 in)
1936	108.7 mm (4.3 in)
1937	250.9 mm (9.9 in)
1938	165.8 mm (6.5 in)
1939	182.3 mm (7.2 in)
1940	104.2 mm (4.1 in)
1941	133.8 mm (5.3 in)
1942	157.2 mm (6.2 in)
1943	106.7 mm (4.2 in)
1944	194.2 mm (7.6 in)
1945	98.3 mm (3.9 in)
1946	242.0 mm (9.5 in)
1947	109.6 mm (4.3 in)
1948	132.4 mm (5.2 in)
1949	92.5 mm (3.6 in)
1950	124.5 mm (4.9 in)
1951	96.7 mm (3.8 in)
1952	138.7 mm (5.5 in)
1953	51.3 mm (2.0 in)
1954	142.4 mm (5.6 in)
1955	182.5 mm (7.2 in)
1956	153.0 mm (6.0 in)
1957	184.2 mm (7.3 in)
1958	246.7 mm (9.7 in)
1959	119.7 mm (4.7 in)
1960	224.9 mm (8.9 in)
1961	121.1 mm (4.8 in)
1962	103.6 mm (4.1 in)
1963	130.1 mm (5.1 in)
1964	110.6 mm (4.4 in)
1965	147.6 mm (5.8 in)
1966	146.5 mm (5.8 in)
1967	173.1 mm (6.8 in)
1968	96.4 mm (3.8 in)
1969	119.0 mm (4.7 in)
1970	73.6 mm (2.9 in)
1971	121.3 mm (4.8 in)
1972	189.7 mm (7.5 in)
1973	156.2 mm (6.1 in)
1974	164.5 mm (6.5 in)
1975	106.4 mm (4.2 in)
1976	194.5 mm (7.7 in)
1977	141.9 mm (5.6 in)
1978	265.5 mm (10.5 in)
1979	127.7 mm (5.0 in)
1980	202.5 mm (8.0 in)
1981	146.2 mm (5.8 in)
1982	120.6 mm (4.7 in)
1983	155.5 mm (6.1 in)
1984	110.9 mm (4.4 in)
1985	249.5 mm (9.8 in)
1986	102.6 mm (4.0 in)
1987	86.3 mm (3.4 in)
1988	255.5 mm (10.1 in)
1989	126.7 mm (5.0 in)
1990	127.0 mm (5.0 in)
1991	150.6 mm (5.9 in)
1992	99.1 mm (3.9 in)
1993	149.7 mm (5.9 in)
1994	107.7 mm (4.2 in)
1995	107.8 mm (4.2 in)
1996	125.1 mm (4.9 in)
1997	107.3 mm (4.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ceylon (Bos), 1931 to 1997. The record is 119 days in 1994, marked on the chart; the median year is 43 days.

Longest dry spell (CDD) at Ceylon (Bos) by year
Year	Longest dry spell (CDD)
1931	47 days
1932	116 days
1933	44 days
1934	32 days
1935	32 days
1936	33 days
1937	42 days
1938	42 days
1939	33 days
1940	40 days
1941	84 days
1942	66 days
1943	25 days
1944	64 days
1945	112 days
1946	67 days
1947	35 days
1948	61 days
1949	25 days
1950	25 days
1951	28 days
1952	35 days
1953	87 days
1954	52 days
1955	43 days
1956	28 days
1957	21 days
1958	55 days
1959	47 days
1960	39 days
1961	24 days
1962	62 days
1963	35 days
1964	87 days
1965	86 days
1966	41 days
1967	31 days
1968	23 days
1969	41 days
1970	24 days
1971	24 days
1972	56 days
1973	40 days
1974	38 days
1975	70 days
1976	56 days
1977	48 days
1978	117 days
1979	53 days
1980	76 days
1981	85 days
1982	49 days
1983	37 days
1984	39 days
1985	61 days
1986	75 days
1987	28 days
1988	32 days
1989	41 days
1990	58 days
1991	47 days
1992	112 days
1993	47 days
1994	119 days
1995	51 days
1996	24 days
1997	31 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

65 years, 1931 to 1996

A day with at least 82.3 mm (3.2 in) of rain is expected about once in 2 years. A day with at least 160.2 mm (6.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Ceylon (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	82.3 mm (3.2 in)
5 years	106.3 mm (4.2 in)
10 years	120.9 mm (4.8 in)
25 years	137.8 mm (5.4 in)
50 years	149.4 mm (5.9 in)
100 years	160.2 mm (6.3 in)	Longer than the 65 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, 65 years of values from 1931 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: 157.5 mm (6.2 in) in 1958; 157.0 mm (6.2 in) in 1946; 151.8 mm (6.0 in) in 1985.

Download the Data

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