Cassilis Post Office Weather Records (ASN00062005)

Record envelope, standing records and threshold days for Cassilis Post Office (ASN00062005), Australia, with 146 years of record.

Key Facts for Cassilis Post Office

Cassilis Post Office (ASN00062005) is a weather station in Australia at -32.01 latitude and 149.98 longitude, 395 m (1,296 ft) above sea level.
The station reports from 1870 to 2015, 146 years of record.
1,464 records set at Cassilis Post Office still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Cassilis Post Office set a daily record precipitation of 35.0 mm (1.4 in) on 27 March 2014.

About the Station

Location: Australia, -32.01 latitude, 149.98 longitude.
Elevation: 395 m (1,296 ft).
Period of record: 1870 to 2015, 146 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 Cassilis Post Office. 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 Cassilis Post Office, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	41.1 C (106.0 F)	5.2 C (41.4 F)	n/a	n/a
Feb	38.8 C (101.8 F)	7.9 C (46.2 F)	n/a	n/a
Mar	35.0 C (95.0 F)	2.0 C (35.6 F)	n/a	n/a
Apr	31.7 C (89.1 F)	0.5 C (32.9 F)	n/a	n/a
May	25.5 C (77.9 F)	-5.6 C (21.9 F)	n/a	n/a
Jun	23.7 C (74.7 F)	-7.7 C (18.1 F)	n/a	n/a
Jul	22.7 C (72.9 F)	-10.0 C (14.0 F)	n/a	n/a
Aug	25.4 C (77.7 F)	-7.5 C (18.5 F)	n/a	n/a
Sep	30.0 C (86.0 F)	-6.4 C (20.5 F)	n/a	n/a
Oct	35.8 C (96.4 F)	-3.1 C (26.4 F)	n/a	n/a
Nov	42.5 C (108.5 F)	-0.1 C (31.8 F)	n/a	n/a
Dec	40.4 C (104.7 F)	3.2 C (37.8 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Cassilis Post Office still stand. 1973 holds the most, with 237.

All-Time Record Progression

1 new records

1 all-time records were set at Cassilis Post Office between 24 February 1955 and 24 February 1955. Each dot is a new record.

Wettest Day of Each Month

Feb: 196.1 mm (7.7 in)

The wettest day on record for each calendar month at Cassilis Post Office. The most was 196.1 mm (7.7 in) on 24 February 1955.

Record daily precipitation for each month at Cassilis Post Office
Month	Record daily precipitation (mm)	Date
Jan	128.5 mm (5.1 in)	25 January 1874
Feb	196.1 mm (7.7 in)	24 February 1955
Mar	119.4 mm (4.7 in)	25 March 1926
Apr	89.4 mm (3.5 in)	7 April 1913
May	98.6 mm (3.9 in)	27 May 1889
Jun	110.0 mm (4.3 in)	8 June 2007
Jul	96.3 mm (3.8 in)	14 July 1912
Aug	66.0 mm (2.6 in)	13 August 1952
Sep	77.0 mm (3.0 in)	24 September 1892
Oct	81.0 mm (3.2 in)	7 October 1889
Nov	64.0 mm (2.5 in)	25 November 1927
Dec	69.9 mm (2.8 in)	26 December 1887

Period of Record Coverage

1967 to 1975

9 years of record at Cassilis Post Office, 1967 to 1975. 7 years have data for under 90 percent of days and are left out of rankings: 1967, 1968, 1969, 1970, 1971, 1972, 1975.

Days with data per year at Cassilis Post Office
Year	Days with data	Share of year	Complete
1967	229	63%	No
1968	255	70%	No
1969	112	31%	No
1970	195	53%	No
1971	218	60%	No
1972	129	35%	No
1973	365	100%	Yes
1974	363	99%	Yes
1975	322	88%	No

Latest Records

Latest records at Cassilis Post Office
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 March 2014	Cassilis Post Office, AU	daily rain	35.0 mm (1.4 in)	3.2 mm (0.13 in)	85 years	37 of 100 (Notable)
3 March 2012	Cassilis Post Office, AU	daily rain	50.0 mm (2.0 in)	19.4 mm (0.8 in)	35 years	34 of 100 (Routine)
12 December 2011	Cassilis Post Office, AU	daily rain	49.0 mm (1.9 in)	16.0 mm (0.6 in)	94 years	52 of 100 (Notable)
26 November 2011	Cassilis Post Office, AU	daily rain	42.0 mm (1.7 in)	2.4 mm (0.09 in)	56 years	28 of 100 (Routine)
1 June 2011	Cassilis Post Office, AU	daily rain	25.0 mm (1.0 in)	3.2 mm (0.13 in)	113 years	43 of 100 (Notable)
1 December 2010	Cassilis Post Office, AU	daily rain	59.0 mm (2.3 in)	33.6 mm (1.3 in)	63 years	58 of 100 (Notable)
30 March 2010	Cassilis Post Office, AU	daily rain	30.4 mm (1.2 in)	18.2 mm (0.7 in)	48 years	37 of 100 (Notable)
23 July 2009	Cassilis Post Office, AU	daily rain	15.0 mm (0.6 in)	2.0 mm (0.08 in)	88 years	20 of 100 (Routine)
21 August 2007	Cassilis Post Office, AU	daily rain	27.0 mm (1.1 in)	5.9 mm (0.23 in)	96 years	45 of 100 (Notable)
19 June 2007	Cassilis Post Office, AU	daily rain	28.0 mm (1.1 in)	11.5 mm (0.5 in)	120 years	53 of 100 (Notable)
8 June 2007	Cassilis Post Office, AU	monthly rain	110.0 mm (4.3 in)	27.4 mm (1.1 in)	76 years	74 of 100 (Major)
7 June 2007	Cassilis Post Office, AU	daily rain	43.0 mm (1.7 in)	20.4 mm (0.8 in)	9 years	35 of 100 (Notable)
18 March 2005	Cassilis Post Office, AU	daily rain	39.0 mm (1.5 in)	21.2 mm (0.8 in)	79 years	48 of 100 (Notable)
5 November 2004	Cassilis Post Office, AU	daily rain	21.0 mm (0.8 in)	1.9 mm (0.07 in)	76 years	20 of 100 (Routine)
24 August 2003	Cassilis Post Office, AU	daily rain	38.6 mm (1.5 in)	7.1 mm (0.28 in)	103 years	49 of 100 (Notable)
14 August 2003	Cassilis Post Office, AU	daily rain	21.0 mm (0.8 in)	8.0 mm (0.31 in)	50 years	20 of 100 (Routine)
14 April 2003	Cassilis Post Office, AU	daily rain	46.8 mm (1.8 in)	30.0 mm (1.2 in)	68 years	59 of 100 (Notable)
11 December 2002	Cassilis Post Office, AU	daily rain	65.0 mm (2.6 in)	45.4 mm (1.8 in)	112 years	80 of 100 (Exceptional)
14 December 2000	Cassilis Post Office, AU	daily rain	26.6 mm (1.0 in)	6.6 mm (0.26 in)	19 years	21 of 100 (Routine)
17 April 2000	Cassilis Post Office, AU	daily rain	33.6 mm (1.3 in)	13.3 mm (0.5 in)	86 years	48 of 100 (Notable)

Extremes by Year

1870 to 2015

Yearly extremes at Cassilis Post Office: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	42.5 C (108.5 F)	1968	37.0 C (98.6 F)	9
Coldest night (TNn)	-10.0 C (14.0 F)	1970	-6.3 C (20.7 F)	9
Wettest day (Rx1day)	196.1 mm (7.7 in)	1955	49.3 mm (1.9 in)	143
Wettest five days (Rx5day)	284.8 mm (11.2 in)	1955	79.2 mm (3.1 in)	132
Longest dry spell (CDD)	78 days	1895	31 days	134

Hottest day (TXx)

The hottest day of the year at Cassilis Post Office, 1870 to 2015. The record is 42.5 C (108.5 F) in 1968, marked on the chart; the median year is 37.0 C (98.6 F).

Hottest day (TXx) at Cassilis Post Office by year
Year	Hottest day (TXx)
1870	n/a
1871	n/a
1872	n/a
1873	n/a
1874	n/a
1875	n/a
1876	n/a
1877	n/a
1878	n/a
1879	n/a
1880	n/a
1881	n/a
1882	n/a
1883	n/a
1884	n/a
1885	n/a
1886	n/a
1887	n/a
1888	n/a
1889	n/a
1890	n/a
1891	n/a
1892	n/a
1893	n/a
1894	n/a
1895	n/a
1896	n/a
1897	n/a
1898	n/a
1899	n/a
1900	n/a
1901	n/a
1902	n/a
1903	n/a
1904	n/a
1905	n/a
1906	n/a
1907	n/a
1908	n/a
1909	n/a
1910	n/a
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	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	36.9 C (98.4 F)
1968	42.5 C (108.5 F)
1969	34.4 C (93.9 F)
1970	35.6 C (96.1 F)
1971	36.1 C (97.0 F)
1972	40.4 C (104.7 F)
1973	41.1 C (106.0 F)
1974	37.0 C (98.6 F)
1975	40.0 C (104.0 F)
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a

Coldest night (TNn)

The coldest night of the year at Cassilis Post Office, 1870 to 2015. The record is -10.0 C (14.0 F) in 1970, marked on the chart; the median year is -6.3 C (20.7 F).

Coldest night (TNn) at Cassilis Post Office by year
Year	Coldest night (TNn)
1870	n/a
1871	n/a
1872	n/a
1873	n/a
1874	n/a
1875	n/a
1876	n/a
1877	n/a
1878	n/a
1879	n/a
1880	n/a
1881	n/a
1882	n/a
1883	n/a
1884	n/a
1885	n/a
1886	n/a
1887	n/a
1888	n/a
1889	n/a
1890	n/a
1891	n/a
1892	n/a
1893	n/a
1894	n/a
1895	n/a
1896	n/a
1897	n/a
1898	n/a
1899	n/a
1900	n/a
1901	n/a
1902	n/a
1903	n/a
1904	n/a
1905	n/a
1906	n/a
1907	n/a
1908	n/a
1909	n/a
1910	n/a
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	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	-7.5 C (18.5 F)
1968	-7.2 C (19.0 F)
1969	-5.6 C (21.9 F)
1970	-10.0 C (14.0 F)
1971	-4.2 C (24.4 F)
1972	-5.0 C (23.0 F)
1973	-4.2 C (24.4 F)
1974	-6.3 C (20.7 F)
1975	-7.7 C (18.1 F)
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a

Wettest day (Rx1day)

The wettest day of the year at Cassilis Post Office, 1870 to 2015. The record is 196.1 mm (7.7 in) in 1955, marked on the chart; the median year is 49.3 mm (1.9 in).

Wettest day (Rx1day) at Cassilis Post Office by year
Year	Wettest day (Rx1day)
1870	55.9 mm (2.2 in)
1871	47.5 mm (1.9 in)
1872	45.7 mm (1.8 in)
1873	53.3 mm (2.1 in)
1874	128.5 mm (5.1 in)
1875	52.3 mm (2.1 in)
1876	39.4 mm (1.6 in)
1877	22.1 mm (0.9 in)
1878	45.0 mm (1.8 in)
1879	52.1 mm (2.1 in)
1880	55.4 mm (2.2 in)
1881	45.2 mm (1.8 in)
1882	33.5 mm (1.3 in)
1883	51.1 mm (2.0 in)
1884	16.0 mm (0.6 in)
1885	50.8 mm (2.0 in)
1886	47.5 mm (1.9 in)
1887	69.9 mm (2.8 in)
1888	33.8 mm (1.3 in)
1889	98.6 mm (3.9 in)
1890	54.1 mm (2.1 in)
1891	84.6 mm (3.3 in)
1892	77.0 mm (3.0 in)
1893	114.3 mm (4.5 in)
1894	44.2 mm (1.7 in)
1895	88.9 mm (3.5 in)
1896	54.1 mm (2.1 in)
1897	70.4 mm (2.8 in)
1898	84.3 mm (3.3 in)
1899	40.1 mm (1.6 in)
1900	40.6 mm (1.6 in)
1901	31.2 mm (1.2 in)
1902	34.5 mm (1.4 in)
1903	43.4 mm (1.7 in)
1904	104.1 mm (4.1 in)
1905	26.7 mm (1.1 in)
1906	40.9 mm (1.6 in)
1907	38.9 mm (1.5 in)
1908	50.3 mm (2.0 in)
1909	69.3 mm (2.7 in)
1910	67.3 mm (2.6 in)
1911	58.4 mm (2.3 in)
1912	96.3 mm (3.8 in)
1913	89.4 mm (3.5 in)
1914	53.1 mm (2.1 in)
1915	25.4 mm (1.0 in)
1916	37.8 mm (1.5 in)
1917	37.3 mm (1.5 in)
1918	44.7 mm (1.8 in)
1919	38.4 mm (1.5 in)
1920	67.6 mm (2.7 in)
1921	58.4 mm (2.3 in)
1922	29.2 mm (1.1 in)
1923	34.5 mm (1.4 in)
1924	42.7 mm (1.7 in)
1925	23.6 mm (0.9 in)
1926	119.4 mm (4.7 in)
1927	64.0 mm (2.5 in)
1928	45.7 mm (1.8 in)
1929	33.5 mm (1.3 in)
1930	82.6 mm (3.3 in)
1931	55.9 mm (2.2 in)
1932	69.9 mm (2.8 in)
1933	48.3 mm (1.9 in)
1934	60.2 mm (2.4 in)
1935	33.5 mm (1.3 in)
1936	90.7 mm (3.6 in)
1937	28.4 mm (1.1 in)
1938	69.6 mm (2.7 in)
1939	41.4 mm (1.6 in)
1940	57.9 mm (2.3 in)
1941	48.3 mm (1.9 in)
1942	51.3 mm (2.0 in)
1943	62.2 mm (2.4 in)
1944	39.9 mm (1.6 in)
1945	66.3 mm (2.6 in)
1946	41.4 mm (1.6 in)
1947	64.8 mm (2.6 in)
1948	45.0 mm (1.8 in)
1949	39.4 mm (1.6 in)
1950	98.3 mm (3.9 in)
1951	36.3 mm (1.4 in)
1952	66.0 mm (2.6 in)
1953	32.5 mm (1.3 in)
1954	36.6 mm (1.4 in)
1955	196.1 mm (7.7 in)
1956	55.1 mm (2.2 in)
1957	33.0 mm (1.3 in)
1958	81.8 mm (3.2 in)
1959	56.4 mm (2.2 in)
1960	33.5 mm (1.3 in)
1961	49.3 mm (1.9 in)
1962	27.4 mm (1.1 in)
1963	59.9 mm (2.4 in)
1964	55.9 mm (2.2 in)
1965	46.5 mm (1.8 in)
1966	49.5 mm (1.9 in)
1967	49.3 mm (1.9 in)
1968	75.2 mm (3.0 in)
1969	62.0 mm (2.4 in)
1970	60.2 mm (2.4 in)
1971	71.4 mm (2.8 in)
1972	41.4 mm (1.6 in)
1973	53.8 mm (2.1 in)
1974	48.8 mm (1.9 in)
1975	63.0 mm (2.5 in)
1976	67.0 mm (2.6 in)
1977	113.0 mm (4.4 in)
1978	48.0 mm (1.9 in)
1979	33.8 mm (1.3 in)
1980	40.0 mm (1.6 in)
1981	40.0 mm (1.6 in)
1982	68.6 mm (2.7 in)
1983	36.8 mm (1.4 in)
1984	79.0 mm (3.1 in)
1985	55.4 mm (2.2 in)
1986	35.2 mm (1.4 in)
1987	83.0 mm (3.3 in)
1988	33.0 mm (1.3 in)
1992	66.0 mm (2.6 in)
1993	51.6 mm (2.0 in)
1994	28.6 mm (1.1 in)
1995	17.0 mm (0.7 in)
1996	49.0 mm (1.9 in)
1997	48.0 mm (1.9 in)
1998	66.8 mm (2.6 in)
1999	45.0 mm (1.8 in)
2000	38.0 mm (1.5 in)
2001	49.8 mm (2.0 in)
2002	65.0 mm (2.6 in)
2003	46.8 mm (1.8 in)
2004	35.0 mm (1.4 in)
2005	39.0 mm (1.5 in)
2006	17.0 mm (0.7 in)
2007	110.0 mm (4.3 in)
2008	22.0 mm (0.9 in)
2009	15.0 mm (0.6 in)
2010	59.0 mm (2.3 in)
2011	49.0 mm (1.9 in)
2012	50.0 mm (2.0 in)
2013	38.0 mm (1.5 in)
2014	35.0 mm (1.4 in)
2015	13.0 mm (0.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Cassilis Post Office, 1870 to 2015. The record is 284.8 mm (11.2 in) in 1955, marked on the chart; the median year is 79.2 mm (3.1 in).

Wettest five days (Rx5day) at Cassilis Post Office by year
Year	Wettest five days (Rx5day)
1870	110.5 mm (4.4 in)
1871	70.1 mm (2.8 in)
1872	72.4 mm (2.9 in)
1873	108.9 mm (4.3 in)
1874	159.6 mm (6.3 in)
1875	72.9 mm (2.9 in)
1876	60.2 mm (2.4 in)
1877	26.8 mm (1.1 in)
1878	82.7 mm (3.3 in)
1879	62.5 mm (2.5 in)
1880	60.0 mm (2.4 in)
1881	68.9 mm (2.7 in)
1882	47.5 mm (1.9 in)
1883	62.3 mm (2.5 in)
1884	21.6 mm (0.9 in)
1885	69.3 mm (2.7 in)
1886	91.2 mm (3.6 in)
1887	106.7 mm (4.2 in)
1888	72.2 mm (2.8 in)
1889	159.2 mm (6.3 in)
1890	116.9 mm (4.6 in)
1891	97.3 mm (3.8 in)
1892	94.5 mm (3.7 in)
1893	141.3 mm (5.6 in)
1894	90.7 mm (3.6 in)
1895	130.8 mm (5.1 in)
1896	57.4 mm (2.3 in)
1897	106.7 mm (4.2 in)
1898	136.6 mm (5.4 in)
1899	96.8 mm (3.8 in)
1900	65.8 mm (2.6 in)
1901	42.7 mm (1.7 in)
1902	69.6 mm (2.7 in)
1903	84.6 mm (3.3 in)
1904	216.6 mm (8.5 in)
1905	51.4 mm (2.0 in)
1906	81.6 mm (3.2 in)
1907	47.8 mm (1.9 in)
1908	91.7 mm (3.6 in)
1909	157.7 mm (6.2 in)
1910	162.5 mm (6.4 in)
1911	67.6 mm (2.7 in)
1912	105.7 mm (4.2 in)
1913	110.4 mm (4.3 in)
1914	63.8 mm (2.5 in)
1915	36.8 mm (1.4 in)
1916	89.4 mm (3.5 in)
1917	78.5 mm (3.1 in)
1918	55.4 mm (2.2 in)
1919	50.8 mm (2.0 in)
1920	181.2 mm (7.1 in)
1921	126.8 mm (5.0 in)
1922	47.1 mm (1.9 in)
1923	52.0 mm (2.0 in)
1924	58.5 mm (2.3 in)
1925	44.6 mm (1.8 in)
1926	212.2 mm (8.4 in)
1927	120.7 mm (4.8 in)
1928	115.0 mm (4.5 in)
1929	64.8 mm (2.6 in)
1930	88.2 mm (3.5 in)
1931	77.5 mm (3.1 in)
1932	77.8 mm (3.1 in)
1933	74.7 mm (2.9 in)
1934	91.5 mm (3.6 in)
1935	57.1 mm (2.2 in)
1936	94.5 mm (3.7 in)
1937	42.9 mm (1.7 in)
1938	81.0 mm (3.2 in)
1939	61.7 mm (2.4 in)
1940	92.4 mm (3.6 in)
1941	77.7 mm (3.1 in)
1942	95.3 mm (3.8 in)
1943	98.1 mm (3.9 in)
1944	55.9 mm (2.2 in)
1945	84.1 mm (3.3 in)
1946	66.8 mm (2.6 in)
1947	118.2 mm (4.7 in)
1948	48.3 mm (1.9 in)
1949	73.2 mm (2.9 in)
1950	156.7 mm (6.2 in)
1951	40.4 mm (1.6 in)
1952	79.0 mm (3.1 in)
1953	58.9 mm (2.3 in)
1954	69.6 mm (2.7 in)
1955	284.8 mm (11.2 in)
1956	97.8 mm (3.9 in)
1957	45.4 mm (1.8 in)
1958	127.1 mm (5.0 in)
1959	78.7 mm (3.1 in)
1960	57.1 mm (2.2 in)
1961	91.2 mm (3.6 in)
1962	61.4 mm (2.4 in)
1963	75.4 mm (3.0 in)
1964	93.7 mm (3.7 in)
1965	76.4 mm (3.0 in)
1966	67.5 mm (2.7 in)
1967	79.3 mm (3.1 in)
1968	129.6 mm (5.1 in)
1969	71.4 mm (2.8 in)
1970	81.8 mm (3.2 in)
1971	119.7 mm (4.7 in)
1972	71.4 mm (2.8 in)
1973	117.0 mm (4.6 in)
1974	137.8 mm (5.4 in)
1975	113.0 mm (4.4 in)
1976	90.6 mm (3.6 in)
1977	152.2 mm (6.0 in)
1978	75.4 mm (3.0 in)
1979	105.8 mm (4.2 in)
1980	61.4 mm (2.4 in)
1981	80.0 mm (3.1 in)
1982	91.4 mm (3.6 in)
1983	81.4 mm (3.2 in)
1984	101.0 mm (4.0 in)
1985	82.8 mm (3.3 in)
1986	42.8 mm (1.7 in)
1987	101.6 mm (4.0 in)
1988	59.4 mm (2.3 in)
1992	170.9 mm (6.7 in)
1993	81.2 mm (3.2 in)
1994	35.2 mm (1.4 in)
1995	n/a
1996	81.6 mm (3.2 in)
1997	104.2 mm (4.1 in)
1998	67.8 mm (2.7 in)
1999	69.2 mm (2.7 in)
2000	97.0 mm (3.8 in)
2001	62.2 mm (2.4 in)
2002	65.2 mm (2.6 in)
2003	63.4 mm (2.5 in)
2004	62.6 mm (2.5 in)
2005	31.0 mm (1.2 in)
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Cassilis Post Office, 1870 to 2015. The record is 78 days in 1895, marked on the chart; the median year is 31 days.

Longest dry spell (CDD) at Cassilis Post Office by year
Year	Longest dry spell (CDD)
1870	23 days
1871	29 days
1872	29 days
1873	35 days
1874	21 days
1875	28 days
1876	37 days
1877	50 days
1878	34 days
1879	19 days
1880	52 days
1881	36 days
1882	49 days
1883	38 days
1884	19 days
1885	26 days
1886	26 days
1887	19 days
1888	28 days
1889	16 days
1890	30 days
1891	26 days
1892	29 days
1893	27 days
1894	27 days
1895	78 days
1896	27 days
1897	51 days
1898	39 days
1899	34 days
1900	27 days
1901	30 days
1902	43 days
1903	30 days
1904	50 days
1905	22 days
1906	23 days
1907	28 days
1908	27 days
1909	20 days
1910	27 days
1911	32 days
1912	40 days
1913	34 days
1914	34 days
1915	61 days
1916	21 days
1917	24 days
1918	32 days
1919	42 days
1920	29 days
1921	30 days
1922	34 days
1923	60 days
1924	29 days
1925	43 days
1926	43 days
1927	42 days
1928	34 days
1929	31 days
1930	23 days
1931	21 days
1932	24 days
1933	22 days
1934	45 days
1935	34 days
1936	33 days
1937	41 days
1938	36 days
1939	26 days
1940	77 days
1941	35 days
1942	33 days
1943	23 days
1944	22 days
1945	30 days
1946	37 days
1947	27 days
1948	24 days
1949	29 days
1950	34 days
1951	31 days
1952	30 days
1953	28 days
1954	44 days
1955	20 days
1956	20 days
1957	49 days
1958	25 days
1959	43 days
1960	32 days
1961	49 days
1962	36 days
1963	22 days
1964	31 days
1965	34 days
1966	32 days
1967	46 days
1968	26 days
1969	27 days
1970	39 days
1971	66 days
1972	41 days
1973	29 days
1974	34 days
1975	25 days
1976	34 days
1977	31 days
1978	28 days
1979	25 days
1980	58 days
1981	40 days
1982	55 days
1983	22 days
1984	35 days
1985	27 days
1986	27 days
1987	29 days
1988	31 days
1992	47 days
1993	65 days
1994	36 days
1995	1 day
1996	22 days
1997	61 days
1998	51 days
1999	54 days
2000	24 days
2001	25 days
2002	26 days
2003	38 days
2004	25 days
2005	17 days
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	1 day
2012	n/a
2013	n/a
2014	n/a
2015	n/a

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

120 years, 1871 to 2003

A day with at least 50.1 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 146.7 mm (5.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Cassilis Post Office: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	50.1 mm (2.0 in)
5 years	69.8 mm (2.7 in)
10 years	85.0 mm (3.3 in)
25 years	107.1 mm (4.2 in)
50 years	125.8 mm (5.0 in)
100 years	146.7 mm (5.8 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 120 years of values from 1871 to 2003.

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: 196.1 mm (7.7 in) in 1955; 128.5 mm (5.1 in) in 1874; 119.4 mm (4.7 in) in 1926.

Download the Data

Data for Cassilis Post Office standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Cassilis Post Office 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).