Thomas River (Pol) Weather Records (SF001014470)

Record envelope, standing records and threshold days for Thomas River (Pol) (SF001014470), South Africa, with 66 years of record.

Key Facts for Thomas River (Pol)

Thomas River (Pol) (SF001014470) is a weather station in South Africa at -32.45 latitude and 27.25 longitude, 994 m (3,261 ft) above sea level.
The station reports from 1932 to 1997, 66 years of record.
0 records set at Thomas River (Pol) still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Thomas River (Pol) set a monthly record daily precipitation of 70.0 mm (2.8 in) on 16 January 1997.

About the Station

Location: South Africa, -32.45 latitude, 27.25 longitude.
Elevation: 994 m (3,261 ft).
Period of record: 1932 to 1997, 66 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 Thomas River (Pol). 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 Thomas River (Pol), 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 Thomas River (Pol) still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Thomas River (Pol) between 21 February 1972 and 21 February 1972. Each dot is a new record.

Wettest Day of Each Month

Feb: 86.0 mm (3.4 in)

The wettest day on record for each calendar month at Thomas River (Pol). The most was 86.0 mm (3.4 in) on 21 February 1972.

Record daily precipitation for each month at Thomas River (Pol)
Month	Record daily precipitation (mm)	Date
Jan	70.0 mm (2.8 in)	16 January 1997
Feb	86.0 mm (3.4 in)	21 February 1972
Mar	51.0 mm (2.0 in)	10 March 1963
Apr	51.0 mm (2.0 in)	26 April 1967
May	50.8 mm (2.0 in)	4 May 1940
Jun	37.0 mm (1.5 in)	17 June 1965
Jul	52.0 mm (2.0 in)	20 July 1979
Aug	60.6 mm (2.4 in)	28 August 1970
Sep	54.0 mm (2.1 in)	2 September 1968
Oct	60.0 mm (2.4 in)	22 October 1953
Nov	56.0 mm (2.2 in)	2 November 1985
Dec	52.0 mm (2.0 in)	3 December 1961

Latest Records

Latest records at Thomas River (Pol)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
16 January 1997	Thomas River (Pol), ZA	monthly rain	70.0 mm (2.8 in)	3.0 mm (0.12 in)	8 years	20 of 100 (Routine)
13 September 1996	Thomas River (Pol), ZA	daily rain	15.0 mm (0.6 in)	3.0 mm (0.12 in)	17 years	14 of 100 (Routine)
1 December 1995	Thomas River (Pol), ZA	daily rain	19.0 mm (0.7 in)	1.5 mm (0.06 in)	26 years	15 of 100 (Routine)
7 May 1995	Thomas River (Pol), ZA	daily rain	26.0 mm (1.0 in)	14.5 mm (0.6 in)	34 years	32 of 100 (Routine)
8 March 1995	Thomas River (Pol), ZA	daily rain	16.0 mm (0.6 in)	2.0 mm (0.08 in)	8 years	10 of 100 (Routine)
6 February 1995	Thomas River (Pol), ZA	daily rain	22.0 mm (0.9 in)	1.4 mm (0.06 in)	53 years	20 of 100 (Routine)
9 January 1994	Thomas River (Pol), ZA	daily rain	40.0 mm (1.6 in)	15.0 mm (0.6 in)	23 years	25 of 100 (Routine)
22 September 1993	Thomas River (Pol), ZA	daily rain	12.0 mm (0.5 in)	2.5 mm (0.10 in)	6 years	10 of 100 (Routine)
11 February 1993	Thomas River (Pol), ZA	daily rain	17.2 mm (0.7 in)	0.2 mm (0.01 in)	36 years	16 of 100 (Routine)
7 August 1992	Thomas River (Pol), ZA	daily rain	14.0 mm (0.6 in)	14.0 mm (0.6 in)	59 years	20 of 100 (Routine)
11 December 1991	Thomas River (Pol), ZA	daily rain	23.5 mm (0.9 in)	2.3 mm (0.09 in)	28 years	16 of 100 (Routine)
7 December 1991	Thomas River (Pol), ZA	daily rain	36.0 mm (1.4 in)	14.4 mm (0.6 in)	40 years	32 of 100 (Routine)
29 October 1991	Thomas River (Pol), ZA	daily rain	51.0 mm (2.0 in)	32.0 mm (1.3 in)	16 years	48 of 100 (Notable)
28 October 1991	Thomas River (Pol), ZA	daily rain	15.5 mm (0.6 in)	5.3 mm (0.21 in)	52 years	20 of 100 (Routine)
8 October 1991	Thomas River (Pol), ZA	daily rain	22.0 mm (0.9 in)	5.5 mm (0.22 in)	28 years	20 of 100 (Routine)
5 February 1991	Thomas River (Pol), ZA	daily rain	54.0 mm (2.1 in)	20.0 mm (0.8 in)	5 years	23 of 100 (Routine)
18 October 1990	Thomas River (Pol), ZA	daily rain	16.0 mm (0.6 in)	5.6 mm (0.22 in)	48 years	20 of 100 (Routine)
12 April 1990	Thomas River (Pol), ZA	daily rain	14.0 mm (0.6 in)	4.0 mm (0.16 in)	17 years	14 of 100 (Routine)
15 March 1990	Thomas River (Pol), ZA	daily rain	13.0 mm (0.5 in)	1.3 mm (0.05 in)	4 years	7 of 100 (Routine)
6 March 1990	Thomas River (Pol), ZA	daily rain	29.0 mm (1.1 in)	4.9 mm (0.19 in)	43 years	22 of 100 (Routine)

Extremes by Year

1932 to 1997

Yearly extremes at Thomas River (Pol): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	86.0 mm (3.4 in)	1972	42.3 mm (1.7 in)	66
Wettest five days (Rx5day)	156.0 mm (6.1 in)	1972	63.7 mm (2.5 in)	66
Longest dry spell (CDD)	189 days	1994	63 days	66

Wettest day (Rx1day)

The wettest day of the year at Thomas River (Pol), 1932 to 1997. The record is 86.0 mm (3.4 in) in 1972, marked on the chart; the median year is 42.3 mm (1.7 in).

Wettest day (Rx1day) at Thomas River (Pol) by year
Year	Wettest day (Rx1day)
1932	33.3 mm (1.3 in)
1933	38.1 mm (1.5 in)
1934	41.7 mm (1.6 in)
1935	45.7 mm (1.8 in)
1936	35.8 mm (1.4 in)
1937	53.3 mm (2.1 in)
1938	41.9 mm (1.6 in)
1939	34.3 mm (1.4 in)
1940	50.8 mm (2.0 in)
1941	44.7 mm (1.8 in)
1942	51.6 mm (2.0 in)
1943	37.6 mm (1.5 in)
1944	49.5 mm (1.9 in)
1945	35.8 mm (1.4 in)
1946	36.8 mm (1.4 in)
1947	38.1 mm (1.5 in)
1948	48.3 mm (1.9 in)
1949	37.1 mm (1.5 in)
1950	43.7 mm (1.7 in)
1951	43.7 mm (1.7 in)
1952	35.1 mm (1.4 in)
1953	60.0 mm (2.4 in)
1954	40.0 mm (1.6 in)
1955	41.5 mm (1.6 in)
1956	47.3 mm (1.9 in)
1957	32.6 mm (1.3 in)
1958	66.5 mm (2.6 in)
1959	29.5 mm (1.2 in)
1960	42.5 mm (1.7 in)
1961	52.0 mm (2.0 in)
1962	36.0 mm (1.4 in)
1963	65.0 mm (2.6 in)
1964	29.0 mm (1.1 in)
1965	37.0 mm (1.5 in)
1966	25.5 mm (1.0 in)
1967	51.0 mm (2.0 in)
1968	54.0 mm (2.1 in)
1969	20.0 mm (0.8 in)
1970	60.6 mm (2.4 in)
1971	62.5 mm (2.5 in)
1972	86.0 mm (3.4 in)
1973	32.0 mm (1.3 in)
1974	51.0 mm (2.0 in)
1975	35.5 mm (1.4 in)
1976	51.0 mm (2.0 in)
1977	60.0 mm (2.4 in)
1978	42.0 mm (1.7 in)
1979	52.0 mm (2.0 in)
1980	52.9 mm (2.1 in)
1981	46.3 mm (1.8 in)
1982	28.2 mm (1.1 in)
1983	47.0 mm (1.9 in)
1984	32.5 mm (1.3 in)
1985	56.0 mm (2.2 in)
1986	34.5 mm (1.4 in)
1987	35.3 mm (1.4 in)
1988	57.5 mm (2.3 in)
1989	67.0 mm (2.6 in)
1990	29.0 mm (1.1 in)
1991	54.0 mm (2.1 in)
1992	37.5 mm (1.5 in)
1993	26.0 mm (1.0 in)
1994	45.0 mm (1.8 in)
1995	30.0 mm (1.2 in)
1996	35.0 mm (1.4 in)
1997	70.0 mm (2.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Thomas River (Pol), 1932 to 1997. The record is 156.0 mm (6.1 in) in 1972, marked on the chart; the median year is 63.7 mm (2.5 in).

Wettest five days (Rx5day) at Thomas River (Pol) by year
Year	Wettest five days (Rx5day)
1932	45.5 mm (1.8 in)
1933	79.3 mm (3.1 in)
1934	61.5 mm (2.4 in)
1935	74.0 mm (2.9 in)
1936	70.6 mm (2.8 in)
1937	63.5 mm (2.5 in)
1938	47.7 mm (1.9 in)
1939	66.9 mm (2.6 in)
1940	53.1 mm (2.1 in)
1941	73.8 mm (2.9 in)
1942	87.1 mm (3.4 in)
1943	66.8 mm (2.6 in)
1944	63.8 mm (2.5 in)
1945	47.2 mm (1.9 in)
1946	51.0 mm (2.0 in)
1947	49.1 mm (1.9 in)
1948	91.5 mm (3.6 in)
1949	84.1 mm (3.3 in)
1950	64.4 mm (2.5 in)
1951	75.9 mm (3.0 in)
1952	70.1 mm (2.8 in)
1953	89.5 mm (3.5 in)
1954	66.0 mm (2.6 in)
1955	73.5 mm (2.9 in)
1956	65.1 mm (2.6 in)
1957	49.6 mm (2.0 in)
1958	66.5 mm (2.6 in)
1959	52.0 mm (2.0 in)
1960	62.0 mm (2.4 in)
1961	70.0 mm (2.8 in)
1962	50.0 mm (2.0 in)
1963	93.0 mm (3.7 in)
1964	43.0 mm (1.7 in)
1965	37.0 mm (1.5 in)
1966	34.0 mm (1.3 in)
1967	61.0 mm (2.4 in)
1968	61.5 mm (2.4 in)
1969	50.5 mm (2.0 in)
1970	153.5 mm (6.0 in)
1971	90.1 mm (3.5 in)
1972	156.0 mm (6.1 in)
1973	44.0 mm (1.7 in)
1974	88.5 mm (3.5 in)
1975	52.5 mm (2.1 in)
1976	126.7 mm (5.0 in)
1977	60.0 mm (2.4 in)
1978	61.0 mm (2.4 in)
1979	84.7 mm (3.3 in)
1980	58.4 mm (2.3 in)
1981	66.8 mm (2.6 in)
1982	31.2 mm (1.2 in)
1983	57.3 mm (2.3 in)
1984	41.5 mm (1.6 in)
1985	112.0 mm (4.4 in)
1986	45.4 mm (1.8 in)
1987	59.6 mm (2.3 in)
1988	128.1 mm (5.0 in)
1989	103.2 mm (4.1 in)
1990	39.5 mm (1.6 in)
1991	76.7 mm (3.0 in)
1992	37.5 mm (1.5 in)
1993	48.4 mm (1.9 in)
1994	45.0 mm (1.8 in)
1995	44.0 mm (1.7 in)
1996	65.0 mm (2.6 in)
1997	70.0 mm (2.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Thomas River (Pol), 1932 to 1997. The record is 189 days in 1994, marked on the chart; the median year is 63 days.

Longest dry spell (CDD) at Thomas River (Pol) by year
Year	Longest dry spell (CDD)
1932	28 days
1933	67 days
1934	53 days
1935	49 days
1936	73 days
1937	70 days
1938	44 days
1939	55 days
1940	84 days
1941	50 days
1942	85 days
1943	58 days
1944	62 days
1945	43 days
1946	35 days
1947	84 days
1948	54 days
1949	56 days
1950	46 days
1951	139 days
1952	58 days
1953	166 days
1954	124 days
1955	64 days
1956	118 days
1957	63 days
1958	74 days
1959	51 days
1960	83 days
1961	54 days
1962	63 days
1963	88 days
1964	54 days
1965	104 days
1966	80 days
1967	168 days
1968	53 days
1969	56 days
1970	66 days
1971	38 days
1972	59 days
1973	72 days
1974	67 days
1975	48 days
1976	46 days
1977	93 days
1978	98 days
1979	45 days
1980	34 days
1981	55 days
1982	48 days
1983	43 days
1984	72 days
1985	81 days
1986	56 days
1987	36 days
1988	61 days
1989	55 days
1990	113 days
1991	100 days
1992	101 days
1993	149 days
1994	189 days
1995	118 days
1996	136 days
1997	37 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

61 years, 1933 to 1995

A day with at least 43.1 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 79.0 mm (3.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Thomas River (Pol): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	43.1 mm (1.7 in)
5 years	54.2 mm (2.1 in)
10 years	60.8 mm (2.4 in)
25 years	68.6 mm (2.7 in)
50 years	74.0 mm (2.9 in)
100 years	79.0 mm (3.1 in)	Longer than the 61 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, 61 years of values from 1933 to 1995.

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: 86.0 mm (3.4 in) in 1972; 67.0 mm (2.6 in) in 1989; 66.5 mm (2.6 in) in 1958.

Download the Data

Data for Thomas River (Pol) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Thomas River (Pol) 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