Illawarra Weather Records (SF005900280)

Record envelope, standing records and threshold days for Illawarra (SF005900280), South Africa, with 92 years of record.

Key Facts for Illawarra

Illawarra (SF005900280) is a weather station in South Africa at -24.98 latitude and 28.52 longitude, 1,052 m (3,451 ft) above sea level.
The station reports from 1906 to 1997, 92 years of record.
0 records set at Illawarra still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Illawarra set a daily record precipitation of 47.0 mm (1.9 in) on 8 October 1997.

About the Station

Location: South Africa, -24.98 latitude, 28.52 longitude.
Elevation: 1,052 m (3,451 ft).
Period of record: 1906 to 1997, 92 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 Illawarra. 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 Illawarra, 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 Illawarra still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Illawarra between 30 December 1955 and 30 December 1955. Each dot is a new record.

Wettest Day of Each Month

Dec: 141.5 mm (5.6 in)

The wettest day on record for each calendar month at Illawarra. The most was 141.5 mm (5.6 in) on 30 December 1955.

Record daily precipitation for each month at Illawarra
Month	Record daily precipitation (mm)	Date
Jan	97.0 mm (3.8 in)	18 January 1919
Feb	109.0 mm (4.3 in)	11 February 1996
Mar	139.7 mm (5.5 in)	18 March 1921
Apr	70.0 mm (2.8 in)	3 April 1975
May	50.8 mm (2.0 in)	5 May 1926
Jun	38.9 mm (1.5 in)	21 June 1925
Jul	40.5 mm (1.6 in)	2 July 1957
Aug	69.9 mm (2.8 in)	1 August 1918
Sep	68.6 mm (2.7 in)	29 September 1973
Oct	71.6 mm (2.8 in)	28 October 1920
Nov	90.5 mm (3.6 in)	18 November 1967
Dec	141.5 mm (5.6 in)	30 December 1955

Latest Records

Latest records at Illawarra
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
8 October 1997	Illawarra, ZA	daily rain	47.0 mm (1.9 in)	33.5 mm (1.3 in)	7 years	41 of 100 (Notable)
10 September 1997	Illawarra, ZA	daily rain	15.4 mm (0.6 in)	4.9 mm (0.19 in)	16 years	18 of 100 (Routine)
30 August 1997	Illawarra, ZA	daily rain	3.0 mm (0.12 in)	1.0 mm (0.04 in)	8 years	11 of 100 (Routine)
27 July 1997	Illawarra, ZA	daily rain	1.5 mm (0.06 in)	1.5 mm (0.06 in)	90 years	20 of 100 (Routine)
26 May 1997	Illawarra, ZA	daily rain	8.5 mm (0.33 in)	8.0 mm (0.31 in)	90 years	20 of 100 (Routine)
25 May 1997	Illawarra, ZA	daily rain	38.2 mm (1.5 in)	33.1 mm (1.3 in)	59 years	66 of 100 (Major)
24 May 1997	Illawarra, ZA	daily rain	11.8 mm (0.5 in)	1.8 mm (0.07 in)	18 years	16 of 100 (Routine)
23 May 1997	Illawarra, ZA	daily rain	9.7 mm (0.38 in)	9.7 mm (0.38 in)	90 years	20 of 100 (Routine)
20 April 1997	Illawarra, ZA	daily rain	12.5 mm (0.5 in)	3.9 mm (0.15 in)	48 years	20 of 100 (Routine)
20 March 1997	Illawarra, ZA	daily rain	37.0 mm (1.5 in)	4.0 mm (0.16 in)	6 years	12 of 100 (Routine)
3 December 1996	Illawarra, ZA	daily rain	28.5 mm (1.1 in)	3.9 mm (0.15 in)	54 years	28 of 100 (Routine)
24 November 1996	Illawarra, ZA	daily rain	37.5 mm (1.5 in)	9.6 mm (0.38 in)	17 years	21 of 100 (Routine)
22 October 1996	Illawarra, ZA	daily rain	25.0 mm (1.0 in)	10.5 mm (0.4 in)	7 years	20 of 100 (Routine)
17 July 1996	Illawarra, ZA	daily rain	8.5 mm (0.33 in)	6.0 mm (0.24 in)	71 years	20 of 100 (Routine)
16 July 1996	Illawarra, ZA	daily rain	6.0 mm (0.24 in)	4.5 mm (0.18 in)	81 years	20 of 100 (Routine)
11 February 1996	Illawarra, ZA	monthly rain	109.0 mm (4.3 in)	41.6 mm (1.6 in)	22 years	60 of 100 (Major)
12 January 1996	Illawarra, ZA	daily rain	64.0 mm (2.5 in)	36.5 mm (1.4 in)	28 years	43 of 100 (Notable)
23 December 1995	Illawarra, ZA	daily rain	36.0 mm (1.4 in)	12.5 mm (0.5 in)	36 years	29 of 100 (Routine)
7 October 1995	Illawarra, ZA	daily rain	15.5 mm (0.6 in)	6.5 mm (0.26 in)	37 years	20 of 100 (Routine)
27 April 1995	Illawarra, ZA	daily rain	53.7 mm (2.1 in)	34.2 mm (1.3 in)	28 years	47 of 100 (Notable)

Extremes by Year

1906 to 1997

Yearly extremes at Illawarra: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	141.5 mm (5.6 in)	1955	53.7 mm (2.1 in)	91
Wettest five days (Rx5day)	171.6 mm (6.8 in)	1923	83.0 mm (3.3 in)	91
Longest dry spell (CDD)	257 days	1971	104 days	91

Wettest day (Rx1day)

The wettest day of the year at Illawarra, 1906 to 1997. The record is 141.5 mm (5.6 in) in 1955, marked on the chart; the median year is 53.7 mm (2.1 in).

Wettest day (Rx1day) at Illawarra by year
Year	Wettest day (Rx1day)
1906	31.5 mm (1.2 in)
1907	50.8 mm (2.0 in)
1908	44.2 mm (1.7 in)
1909	66.3 mm (2.6 in)
1910	49.5 mm (1.9 in)
1911	61.0 mm (2.4 in)
1912	52.1 mm (2.1 in)
1913	56.9 mm (2.2 in)
1914	55.1 mm (2.2 in)
1915	67.3 mm (2.6 in)
1916	23.9 mm (0.9 in)
1917	45.2 mm (1.8 in)
1918	83.8 mm (3.3 in)
1919	97.0 mm (3.8 in)
1920	72.1 mm (2.8 in)
1921	139.7 mm (5.5 in)
1922	51.1 mm (2.0 in)
1923	76.2 mm (3.0 in)
1924	51.8 mm (2.0 in)
1925	61.0 mm (2.4 in)
1926	50.8 mm (2.0 in)
1927	33.0 mm (1.3 in)
1928	36.1 mm (1.4 in)
1929	47.8 mm (1.9 in)
1930	45.7 mm (1.8 in)
1931	60.5 mm (2.4 in)
1932	34.0 mm (1.3 in)
1933	52.1 mm (2.1 in)
1934	57.2 mm (2.3 in)
1935	34.0 mm (1.3 in)
1936	57.9 mm (2.3 in)
1937	66.0 mm (2.6 in)
1938	41.4 mm (1.6 in)
1939	55.9 mm (2.2 in)
1940	45.7 mm (1.8 in)
1941	40.6 mm (1.6 in)
1942	51.6 mm (2.0 in)
1943	90.4 mm (3.6 in)
1944	36.1 mm (1.4 in)
1945	34.8 mm (1.4 in)
1946	37.8 mm (1.5 in)
1947	34.3 mm (1.4 in)
1948	36.6 mm (1.4 in)
1949	55.6 mm (2.2 in)
1950	63.5 mm (2.5 in)
1951	53.6 mm (2.1 in)
1952	48.3 mm (1.9 in)
1953	93.2 mm (3.7 in)
1954	43.0 mm (1.7 in)
1955	141.5 mm (5.6 in)
1956	78.0 mm (3.1 in)
1957	40.5 mm (1.6 in)
1958	65.5 mm (2.6 in)
1959	68.5 mm (2.7 in)
1960	67.0 mm (2.6 in)
1961	52.0 mm (2.0 in)
1962	60.5 mm (2.4 in)
1963	93.2 mm (3.7 in)
1964	62.5 mm (2.5 in)
1965	32.5 mm (1.3 in)
1966	39.0 mm (1.5 in)
1967	90.5 mm (3.6 in)
1968	75.0 mm (3.0 in)
1969	51.0 mm (2.0 in)
1970	56.0 mm (2.2 in)
1971	62.0 mm (2.4 in)
1973	68.6 mm (2.7 in)
1974	94.0 mm (3.7 in)
1975	70.0 mm (2.8 in)
1976	80.0 mm (3.1 in)
1977	54.0 mm (2.1 in)
1978	84.5 mm (3.3 in)
1979	52.0 mm (2.0 in)
1980	52.0 mm (2.0 in)
1981	53.5 mm (2.1 in)
1982	28.5 mm (1.1 in)
1983	56.0 mm (2.2 in)
1984	69.0 mm (2.7 in)
1985	67.0 mm (2.6 in)
1986	55.5 mm (2.2 in)
1987	47.0 mm (1.9 in)
1988	37.0 mm (1.5 in)
1989	69.2 mm (2.7 in)
1990	37.0 mm (1.5 in)
1991	83.0 mm (3.3 in)
1992	46.0 mm (1.8 in)
1993	50.0 mm (2.0 in)
1994	31.5 mm (1.2 in)
1995	53.7 mm (2.1 in)
1996	109.0 mm (4.3 in)
1997	48.3 mm (1.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Illawarra, 1906 to 1997. The record is 171.6 mm (6.8 in) in 1923, marked on the chart; the median year is 83.0 mm (3.3 in).

Wettest five days (Rx5day) at Illawarra by year
Year	Wettest five days (Rx5day)
1906	55.2 mm (2.2 in)
1907	123.0 mm (4.8 in)
1908	74.7 mm (2.9 in)
1909	141.0 mm (5.6 in)
1910	92.2 mm (3.6 in)
1911	97.3 mm (3.8 in)
1912	55.6 mm (2.2 in)
1913	66.8 mm (2.6 in)
1914	66.5 mm (2.6 in)
1915	119.1 mm (4.7 in)
1916	34.3 mm (1.4 in)
1917	84.5 mm (3.3 in)
1918	134.3 mm (5.3 in)
1919	141.4 mm (5.6 in)
1920	132.6 mm (5.2 in)
1921	139.7 mm (5.5 in)
1922	104.3 mm (4.1 in)
1923	171.6 mm (6.8 in)
1924	110.5 mm (4.4 in)
1925	81.4 mm (3.2 in)
1926	110.7 mm (4.4 in)
1927	67.8 mm (2.7 in)
1928	88.9 mm (3.5 in)
1929	82.9 mm (3.3 in)
1930	78.5 mm (3.1 in)
1931	90.9 mm (3.6 in)
1932	66.5 mm (2.6 in)
1933	70.3 mm (2.8 in)
1934	68.9 mm (2.7 in)
1935	41.4 mm (1.6 in)
1936	76.7 mm (3.0 in)
1937	130.5 mm (5.1 in)
1938	79.0 mm (3.1 in)
1939	92.2 mm (3.6 in)
1940	86.1 mm (3.4 in)
1941	79.7 mm (3.1 in)
1942	68.8 mm (2.7 in)
1943	108.7 mm (4.3 in)
1944	90.4 mm (3.6 in)
1945	53.3 mm (2.1 in)
1946	76.2 mm (3.0 in)
1947	68.1 mm (2.7 in)
1948	53.2 mm (2.1 in)
1949	65.3 mm (2.6 in)
1950	66.3 mm (2.6 in)
1951	65.3 mm (2.6 in)
1952	68.6 mm (2.7 in)
1953	114.3 mm (4.5 in)
1954	54.5 mm (2.1 in)
1955	159.5 mm (6.3 in)
1956	105.5 mm (4.2 in)
1957	72.0 mm (2.8 in)
1958	91.2 mm (3.6 in)
1959	92.9 mm (3.7 in)
1960	133.5 mm (5.3 in)
1961	71.0 mm (2.8 in)
1962	71.0 mm (2.8 in)
1963	98.7 mm (3.9 in)
1964	93.0 mm (3.7 in)
1965	53.0 mm (2.1 in)
1966	49.5 mm (1.9 in)
1967	128.5 mm (5.1 in)
1968	75.0 mm (3.0 in)
1969	96.2 mm (3.8 in)
1970	101.5 mm (4.0 in)
1971	103.5 mm (4.1 in)
1973	126.2 mm (5.0 in)
1974	94.0 mm (3.7 in)
1975	83.0 mm (3.3 in)
1976	118.9 mm (4.7 in)
1977	74.3 mm (2.9 in)
1978	152.5 mm (6.0 in)
1979	114.5 mm (4.5 in)
1980	106.7 mm (4.2 in)
1981	71.3 mm (2.8 in)
1982	47.8 mm (1.9 in)
1983	71.1 mm (2.8 in)
1984	110.3 mm (4.3 in)
1985	91.9 mm (3.6 in)
1986	69.7 mm (2.7 in)
1987	65.0 mm (2.6 in)
1988	77.7 mm (3.1 in)
1989	78.4 mm (3.1 in)
1990	53.7 mm (2.1 in)
1991	121.3 mm (4.8 in)
1992	52.0 mm (2.0 in)
1993	50.1 mm (2.0 in)
1994	54.9 mm (2.2 in)
1995	92.7 mm (3.6 in)
1996	156.0 mm (6.1 in)
1997	87.5 mm (3.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Illawarra, 1906 to 1997. The record is 257 days in 1971, marked on the chart; the median year is 104 days.

Longest dry spell (CDD) at Illawarra by year
Year	Longest dry spell (CDD)
1906	9 days
1907	156 days
1908	105 days
1909	73 days
1910	69 days
1911	70 days
1912	132 days
1913	79 days
1914	60 days
1915	98 days
1916	207 days
1917	58 days
1918	86 days
1919	133 days
1920	167 days
1921	135 days
1922	103 days
1923	127 days
1924	127 days
1925	54 days
1926	71 days
1927	57 days
1928	123 days
1929	75 days
1930	180 days
1931	89 days
1932	147 days
1933	121 days
1934	127 days
1935	153 days
1936	111 days
1937	134 days
1938	55 days
1939	47 days
1940	94 days
1941	180 days
1942	72 days
1943	63 days
1944	104 days
1945	170 days
1946	161 days
1947	115 days
1948	145 days
1949	147 days
1950	126 days
1951	100 days
1952	63 days
1953	94 days
1954	114 days
1955	122 days
1956	110 days
1957	51 days
1958	115 days
1959	155 days
1960	100 days
1961	140 days
1962	107 days
1963	117 days
1964	134 days
1965	133 days
1966	101 days
1967	107 days
1968	131 days
1969	102 days
1970	201 days
1971	257 days
1973	57 days
1974	56 days
1975	80 days
1976	145 days
1977	65 days
1978	129 days
1979	86 days
1980	150 days
1981	50 days
1982	85 days
1983	44 days
1984	77 days
1985	58 days
1986	112 days
1987	155 days
1988	65 days
1989	67 days
1990	79 days
1991	88 days
1992	51 days
1993	93 days
1994	160 days
1995	134 days
1996	69 days
1997	45 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

84 years, 1907 to 1997

A day with at least 54.2 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 133.2 mm (5.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Illawarra: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	54.2 mm (2.1 in)
5 years	72.4 mm (2.9 in)
10 years	85.5 mm (3.4 in)
25 years	103.5 mm (4.1 in)
50 years	117.9 mm (4.6 in)
100 years	133.2 mm (5.2 in)	Longer than the 84 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, 84 years of values from 1907 to 1997.

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: 141.5 mm (5.6 in) in 1955; 139.7 mm (5.5 in) in 1921; 109.0 mm (4.3 in) in 1996.

Download the Data

Data for Illawarra standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Illawarra 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