Birchip Post Office Weather Records (ASN00077007)

Record envelope, standing records and threshold days for Birchip Post Office (ASN00077007), Australia, with 98 years of record.

Key Facts for Birchip Post Office

Birchip Post Office (ASN00077007) is a weather station in Australia at -35.98 latitude and 142.92 longitude, 102 m (335 ft) above sea level.
The station reports from 1898 to 1995, 98 years of record.
1,464 records set at Birchip Post Office still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Birchip Post Office set a daily record precipitation of 19.0 mm (0.7 in) on 7 June 1994.

About the Station

Location: Australia, -35.98 latitude, 142.92 longitude.
Elevation: 102 m (335 ft).
Period of record: 1898 to 1995, 98 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 Birchip 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 Birchip Post Office, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	46.0 C (114.8 F)	4.2 C (39.6 F)	n/a	n/a
Feb	43.7 C (110.7 F)	6.1 C (43.0 F)	n/a	n/a
Mar	40.0 C (104.0 F)	3.4 C (38.1 F)	n/a	n/a
Apr	33.1 C (91.6 F)	1.7 C (35.1 F)	n/a	n/a
May	28.7 C (83.7 F)	0.3 C (32.5 F)	n/a	n/a
Jun	21.3 C (70.3 F)	-2.8 C (27.0 F)	n/a	n/a
Jul	25.5 C (77.9 F)	-2.9 C (26.8 F)	n/a	n/a
Aug	28.2 C (82.8 F)	-0.7 C (30.7 F)	n/a	n/a
Sep	31.4 C (88.5 F)	-1.1 C (30.0 F)	n/a	n/a
Oct	37.5 C (99.5 F)	0.0 C (32.0 F)	n/a	n/a
Nov	41.6 C (106.9 F)	2.0 C (35.6 F)	n/a	n/a
Dec	43.0 C (109.4 F)	4.7 C (40.5 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Birchip Post Office still stand. 1968 holds the most, with 108.

Standing records at Birchip Post Office by the year they were set
Year set	Standing records
1965	89
1966	79
1967	72
1968	108
1969	82
1970	73
1971	66
1972	72
1973	64
1974	55
1975	98
1976	60
1977	76
1978	82
1979	55
1980	79
1981	76
1982	97
1983	76
1984	5

All-Time Record Progression

5 new records

5 all-time records were set at Birchip Post Office between 6 December 1930 and 20 February 1973. Each dot is a new record.

When Birchip Post Office set new all-time records
Date	Kind	Detail
1930-12-06	Record daily precipitation	Record daily precipitation 57.2 mm (2.3 in)
1956-03-06	Record daily precipitation	Record daily precipitation 61.7 mm (2.4 in)
1957-02-07	Record daily precipitation	Record daily precipitation 76.7 mm (3.0 in)
1961-12-14	Record daily precipitation	Record daily precipitation 83.3 mm (3.3 in)
1973-02-20	Record daily precipitation	Record daily precipitation 88.6 mm (3.5 in)

Wettest Day of Each Month

Feb: 88.6 mm (3.5 in)

The wettest day on record for each calendar month at Birchip Post Office. The most was 88.6 mm (3.5 in) on 20 February 1973.

Record daily precipitation for each month at Birchip Post Office
Month	Record daily precipitation (mm)	Date
Jan	48.2 mm (1.9 in)	20 January 1979
Feb	88.6 mm (3.5 in)	20 February 1973
Mar	61.7 mm (2.4 in)	6 March 1956
Apr	74.4 mm (2.9 in)	1 April 1959
May	59.4 mm (2.3 in)	10 May 1989
Jun	56.9 mm (2.2 in)	1 June 1909
Jul	46.7 mm (1.8 in)	30 July 1923
Aug	36.6 mm (1.4 in)	24 August 1920
Sep	52.6 mm (2.1 in)	23 September 1916
Oct	65.4 mm (2.6 in)	21 October 1981
Nov	51.3 mm (2.0 in)	7 November 1924
Dec	83.3 mm (3.3 in)	14 December 1961

Period of Record Coverage

1965 to 1984

20 years of record at Birchip Post Office, 1965 to 1984. 18 years have data for under 90 percent of days and are left out of rankings: 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972 and others.

Days with data per year at Birchip Post Office
Year	Days with data	Share of year	Complete
1965	306	84%	No
1966	304	83%	No
1967	296	81%	No
1968	303	83%	No
1969	304	83%	No
1970	293	80%	No
1971	300	82%	No
1972	300	82%	No
1973	291	80%	No
1974	245	67%	No
1975	320	88%	No
1976	316	86%	No
1977	320	88%	No
1978	349	96%	Yes
1979	308	84%	No
1980	343	94%	Yes
1981	324	89%	No
1982	324	89%	No
1983	306	84%	No
1984	21	6%	No

Latest Records

Latest records at Birchip Post Office
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
7 June 1994	Birchip Post Office, AU	daily rain	19.0 mm (0.7 in)	11.4 mm (0.4 in)	88 years	20 of 100 (Routine)
11 February 1994	Birchip Post Office, AU	daily rain	37.0 mm (1.5 in)	18.5 mm (0.7 in)	39 years	36 of 100 (Notable)
9 November 1993	Birchip Post Office, AU	daily rain	11.2 mm (0.4 in)	1.2 mm (0.05 in)	3 years	10 of 100 (Routine)
9 September 1993	Birchip Post Office, AU	daily rain	10.6 mm (0.4 in)	1.2 mm (0.05 in)	72 years	20 of 100 (Routine)
31 August 1993	Birchip Post Office, AU	daily rain	13.6 mm (0.5 in)	5.2 mm (0.20 in)	2 years	20 of 100 (Routine)
9 July 1993	Birchip Post Office, AU	daily rain	12.8 mm (0.5 in)	0.4 mm (0.02 in)	46 years	20 of 100 (Routine)
8 July 1993	Birchip Post Office, AU	daily rain	15.8 mm (0.6 in)	2.6 mm (0.10 in)	72 years	20 of 100 (Routine)
27 January 1993	Birchip Post Office, AU	daily rain	33.0 mm (1.3 in)	24.1 mm (0.9 in)	65 years	58 of 100 (Notable)
9 October 1992	Birchip Post Office, AU	daily rain	22.8 mm (0.9 in)	8.3 mm (0.33 in)	19 years	20 of 100 (Routine)
29 September 1992	Birchip Post Office, AU	daily rain	9.8 mm (0.39 in)	0.1 mm (0.00 in)	28 years	17 of 100 (Routine)
25 September 1992	Birchip Post Office, AU	daily rain	22.4 mm (0.9 in)	11.7 mm (0.5 in)	76 years	20 of 100 (Routine)
12 May 1992	Birchip Post Office, AU	daily rain	20.6 mm (0.8 in)	2.6 mm (0.10 in)	67 years	20 of 100 (Routine)
7 April 1992	Birchip Post Office, AU	daily rain	14.4 mm (0.6 in)	3.0 mm (0.12 in)	42 years	20 of 100 (Routine)
10 January 1992	Birchip Post Office, AU	daily rain	23.0 mm (0.9 in)	17.7 mm (0.7 in)	81 years	20 of 100 (Routine)
31 August 1991	Birchip Post Office, AU	daily rain	8.4 mm (0.33 in)	2.0 mm (0.08 in)	1 year	13 of 100 (Routine)
9 November 1990	Birchip Post Office, AU	daily rain	10.0 mm (0.4 in)	3.6 mm (0.14 in)	49 years	20 of 100 (Routine)
18 July 1990	Birchip Post Office, AU	daily rain	17.0 mm (0.7 in)	4.0 mm (0.16 in)	72 years	20 of 100 (Routine)
31 August 1989	Birchip Post Office, AU	daily rain	6.4 mm (0.25 in)	0.2 mm (0.01 in)	11 years	12 of 100 (Routine)
5 August 1989	Birchip Post Office, AU	daily rain	10.0 mm (0.4 in)	0.3 mm (0.01 in)	76 years	20 of 100 (Routine)
10 July 1989	Birchip Post Office, AU	daily rain	7.2 mm (0.28 in)	1.9 mm (0.07 in)	68 years	20 of 100 (Routine)

Climate Trend

12 complete years, 1965 to 1981

One stripe for each of 12 complete years at Birchip Post Office, 1965 to 1981. Blue stripes are years cooler than the station's own mean of 15.5 C (60.0 F); red stripes are warmer. The coolest year was 1966, at 15.1 C (59.1 F), and the warmest was 1981, at 16.1 C (61.0 F). The strongest colour marks a difference of 0.6 C (1.1 F).

Annual mean temperature at Birchip Post Office as warming stripes, 1965 to 1981
Year	Annual mean temperature	Difference from the station mean
1965	15.5 C	-0.05 C
1966	15.1 C	-0.47 C
1968	15.4 C	-0.18 C
1969	15.3 C	-0.21 C
1970	15.1 C	-0.41 C
1971	15.7 C	+0.11 C
1972	15.8 C	+0.24 C
1973	15.3 C	-0.23 C
1975	15.9 C	+0.35 C
1978	15.5 C	-0.04 C
1980	15.9 C	+0.35 C
1981	16.1 C	+0.56 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1898 to 1995

Yearly extremes at Birchip Post Office: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	46.0 C (114.8 F)	1968	42.1 C (107.8 F)	20
Coldest night (TNn)	-2.9 C (26.8 F)	1982	-0.7 C (30.7 F)	20
Wettest day (Rx1day)	88.6 mm (3.5 in)	1973	33.9 mm (1.3 in)	98
Wettest five days (Rx5day)	113.2 mm (4.5 in)	1974	47.2 mm (1.9 in)	98
Longest dry spell (CDD)	80 days	1926	37 days	98

Hottest day (TXx)

The hottest day of the year at Birchip Post Office, 1898 to 1995. The record is 46.0 C (114.8 F) in 1968, marked on the chart; the median year is 42.1 C (107.8 F).

Hottest day (TXx) at Birchip Post Office by year
Year	Hottest day (TXx)
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	41.7 C (107.1 F)
1966	39.9 C (103.8 F)
1967	41.0 C (105.8 F)
1968	46.0 C (114.8 F)
1969	41.7 C (107.1 F)
1970	42.7 C (108.9 F)
1971	42.6 C (108.7 F)
1972	41.5 C (106.7 F)
1973	43.0 C (109.4 F)
1974	37.4 C (99.3 F)
1975	41.6 C (106.9 F)
1976	42.7 C (108.9 F)
1977	41.3 C (106.3 F)
1978	39.8 C (103.6 F)
1979	45.4 C (113.7 F)
1980	43.0 C (109.4 F)
1981	42.5 C (108.5 F)
1982	45.0 C (113.0 F)
1983	43.3 C (109.9 F)
1984	36.2 C (97.2 F)
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a

Coldest night (TNn)

The coldest night of the year at Birchip Post Office, 1898 to 1995. The record is -2.9 C (26.8 F) in 1982, marked on the chart; the median year is -0.7 C (30.7 F).

Coldest night (TNn) at Birchip Post Office by year
Year	Coldest night (TNn)
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	-1.7 C (28.9 F)
1966	-2.2 C (28.0 F)
1967	-0.4 C (31.3 F)
1968	-1.6 C (29.1 F)
1969	-1.8 C (28.8 F)
1970	-1.2 C (29.8 F)
1971	-0.6 C (30.9 F)
1972	-0.6 C (30.9 F)
1973	-0.6 C (30.9 F)
1974	-2.0 C (28.4 F)
1975	-0.3 C (31.5 F)
1976	-2.5 C (27.5 F)
1977	-0.8 C (30.6 F)
1978	0.0 C (32.0 F)
1979	0.0 C (32.0 F)
1980	0.8 C (33.4 F)
1981	0.3 C (32.5 F)
1982	-2.9 C (26.8 F)
1983	-2.3 C (27.9 F)
1984	8.8 C (47.8 F)
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a

Wettest day (Rx1day)

The wettest day of the year at Birchip Post Office, 1898 to 1995. The record is 88.6 mm (3.5 in) in 1973, marked on the chart; the median year is 33.9 mm (1.3 in).

Wettest day (Rx1day) at Birchip Post Office by year
Year	Wettest day (Rx1day)
1898	16.5 mm (0.6 in)
1899	23.4 mm (0.9 in)
1900	18.5 mm (0.7 in)
1901	22.9 mm (0.9 in)
1902	23.1 mm (0.9 in)
1903	46.5 mm (1.8 in)
1904	20.6 mm (0.8 in)
1905	23.4 mm (0.9 in)
1906	41.7 mm (1.6 in)
1907	37.1 mm (1.5 in)
1908	45.0 mm (1.8 in)
1909	56.9 mm (2.2 in)
1910	17.8 mm (0.7 in)
1911	40.4 mm (1.6 in)
1912	29.2 mm (1.1 in)
1913	33.0 mm (1.3 in)
1914	29.2 mm (1.1 in)
1915	34.8 mm (1.4 in)
1916	52.6 mm (2.1 in)
1917	25.1 mm (1.0 in)
1918	41.7 mm (1.6 in)
1919	40.6 mm (1.6 in)
1920	36.6 mm (1.4 in)
1921	40.6 mm (1.6 in)
1922	25.4 mm (1.0 in)
1923	46.7 mm (1.8 in)
1924	51.3 mm (2.0 in)
1925	39.1 mm (1.5 in)
1926	42.2 mm (1.7 in)
1927	24.4 mm (1.0 in)
1928	43.4 mm (1.7 in)
1929	11.2 mm (0.4 in)
1930	57.2 mm (2.3 in)
1931	41.4 mm (1.6 in)
1932	28.2 mm (1.1 in)
1933	37.6 mm (1.5 in)
1934	31.2 mm (1.2 in)
1935	24.9 mm (1.0 in)
1936	40.9 mm (1.6 in)
1937	43.9 mm (1.7 in)
1938	17.8 mm (0.7 in)
1939	43.4 mm (1.7 in)
1940	18.0 mm (0.7 in)
1941	21.1 mm (0.8 in)
1942	37.1 mm (1.5 in)
1943	9.7 mm (0.38 in)
1944	12.7 mm (0.5 in)
1945	34.0 mm (1.3 in)
1946	47.5 mm (1.9 in)
1947	28.4 mm (1.1 in)
1948	56.9 mm (2.2 in)
1949	19.1 mm (0.8 in)
1950	37.3 mm (1.5 in)
1951	23.9 mm (0.9 in)
1952	25.9 mm (1.0 in)
1953	26.2 mm (1.0 in)
1954	24.6 mm (1.0 in)
1955	37.6 mm (1.5 in)
1956	61.7 mm (2.4 in)
1957	76.7 mm (3.0 in)
1958	30.2 mm (1.2 in)
1959	74.4 mm (2.9 in)
1960	48.5 mm (1.9 in)
1961	83.3 mm (3.3 in)
1962	40.6 mm (1.6 in)
1963	18.5 mm (0.7 in)
1964	28.7 mm (1.1 in)
1965	23.9 mm (0.9 in)
1966	24.9 mm (1.0 in)
1967	12.4 mm (0.5 in)
1968	21.1 mm (0.8 in)
1969	54.6 mm (2.1 in)
1970	39.9 mm (1.6 in)
1971	26.7 mm (1.1 in)
1972	24.4 mm (1.0 in)
1973	88.6 mm (3.5 in)
1974	46.4 mm (1.8 in)
1975	57.4 mm (2.3 in)
1976	14.4 mm (0.6 in)
1977	25.0 mm (1.0 in)
1978	54.8 mm (2.2 in)
1979	48.2 mm (1.9 in)
1980	66.6 mm (2.6 in)
1981	65.4 mm (2.6 in)
1982	13.0 mm (0.5 in)
1983	44.4 mm (1.7 in)
1984	11.6 mm (0.5 in)
1985	33.8 mm (1.3 in)
1986	26.2 mm (1.0 in)
1987	41.0 mm (1.6 in)
1988	44.6 mm (1.8 in)
1989	59.4 mm (2.3 in)
1990	17.0 mm (0.7 in)
1991	19.0 mm (0.7 in)
1992	23.0 mm (0.9 in)
1993	33.0 mm (1.3 in)
1994	37.0 mm (1.5 in)
1995	14.0 mm (0.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Birchip Post Office, 1898 to 1995. The record is 113.2 mm (4.5 in) in 1974, marked on the chart; the median year is 47.2 mm (1.9 in).

Wettest five days (Rx5day) at Birchip Post Office by year
Year	Wettest five days (Rx5day)
1898	17.0 mm (0.7 in)
1899	59.2 mm (2.3 in)
1900	34.0 mm (1.3 in)
1901	25.7 mm (1.0 in)
1902	48.8 mm (1.9 in)
1903	60.2 mm (2.4 in)
1904	42.2 mm (1.7 in)
1905	26.7 mm (1.1 in)
1906	86.4 mm (3.4 in)
1907	44.5 mm (1.8 in)
1908	56.4 mm (2.2 in)
1909	62.2 mm (2.4 in)
1910	17.8 mm (0.7 in)
1911	50.6 mm (2.0 in)
1912	55.4 mm (2.2 in)
1913	40.6 mm (1.6 in)
1914	36.8 mm (1.4 in)
1915	51.3 mm (2.0 in)
1916	77.1 mm (3.0 in)
1917	39.3 mm (1.5 in)
1918	79.1 mm (3.1 in)
1919	49.5 mm (1.9 in)
1920	48.8 mm (1.9 in)
1921	52.0 mm (2.0 in)
1922	34.5 mm (1.4 in)
1923	70.4 mm (2.8 in)
1924	92.1 mm (3.6 in)
1925	53.7 mm (2.1 in)
1926	56.0 mm (2.2 in)
1927	25.9 mm (1.0 in)
1928	65.5 mm (2.6 in)
1929	18.5 mm (0.7 in)
1930	104.2 mm (4.1 in)
1931	70.6 mm (2.8 in)
1932	48.5 mm (1.9 in)
1933	57.9 mm (2.3 in)
1934	62.7 mm (2.5 in)
1935	43.9 mm (1.7 in)
1936	64.8 mm (2.6 in)
1937	72.1 mm (2.8 in)
1938	39.4 mm (1.6 in)
1939	44.7 mm (1.8 in)
1940	24.9 mm (1.0 in)
1941	24.4 mm (1.0 in)
1942	42.7 mm (1.7 in)
1943	14.2 mm (0.6 in)
1944	22.1 mm (0.9 in)
1945	52.2 mm (2.1 in)
1946	69.3 mm (2.7 in)
1947	30.8 mm (1.2 in)
1948	66.3 mm (2.6 in)
1949	45.8 mm (1.8 in)
1950	72.8 mm (2.9 in)
1951	35.5 mm (1.4 in)
1952	27.7 mm (1.1 in)
1953	41.9 mm (1.6 in)
1954	35.5 mm (1.4 in)
1955	55.8 mm (2.2 in)
1956	106.2 mm (4.2 in)
1957	95.8 mm (3.8 in)
1958	35.1 mm (1.4 in)
1959	77.4 mm (3.0 in)
1960	55.1 mm (2.2 in)
1961	85.3 mm (3.4 in)
1962	43.2 mm (1.7 in)
1963	21.5 mm (0.8 in)
1964	42.1 mm (1.7 in)
1965	35.8 mm (1.4 in)
1966	33.9 mm (1.3 in)
1967	19.5 mm (0.8 in)
1968	30.7 mm (1.2 in)
1969	58.6 mm (2.3 in)
1970	54.1 mm (2.1 in)
1971	59.2 mm (2.3 in)
1972	44.0 mm (1.7 in)
1973	100.8 mm (4.0 in)
1974	113.2 mm (4.5 in)
1975	81.6 mm (3.2 in)
1976	31.8 mm (1.3 in)
1977	39.4 mm (1.6 in)
1978	60.2 mm (2.4 in)
1979	68.0 mm (2.7 in)
1980	85.4 mm (3.4 in)
1981	66.4 mm (2.6 in)
1982	13.0 mm (0.5 in)
1983	73.6 mm (2.9 in)
1984	14.4 mm (0.6 in)
1985	21.7 mm (0.9 in)
1986	41.0 mm (1.6 in)
1987	65.8 mm (2.6 in)
1988	44.8 mm (1.8 in)
1989	63.4 mm (2.5 in)
1990	23.0 mm (0.9 in)
1991	21.6 mm (0.9 in)
1992	37.0 mm (1.5 in)
1993	44.9 mm (1.8 in)
1994	40.0 mm (1.6 in)
1995	15.4 mm (0.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Birchip Post Office, 1898 to 1995. The record is 80 days in 1926, marked on the chart; the median year is 37 days.

Longest dry spell (CDD) at Birchip Post Office by year
Year	Longest dry spell (CDD)
1898	30 days
1899	38 days
1900	29 days
1901	34 days
1902	42 days
1903	40 days
1904	59 days
1905	25 days
1906	40 days
1907	36 days
1908	55 days
1909	47 days
1910	37 days
1911	27 days
1912	48 days
1913	32 days
1914	64 days
1915	31 days
1916	44 days
1917	26 days
1918	33 days
1919	40 days
1920	45 days
1921	42 days
1922	42 days
1923	58 days
1924	30 days
1925	41 days
1926	80 days
1927	48 days
1928	45 days
1929	24 days
1930	40 days
1931	59 days
1932	35 days
1933	39 days
1934	47 days
1935	30 days
1936	61 days
1937	27 days
1938	50 days
1939	26 days
1940	32 days
1941	34 days
1942	35 days
1943	47 days
1944	47 days
1945	38 days
1946	25 days
1947	28 days
1948	37 days
1949	47 days
1950	35 days
1951	44 days
1952	30 days
1953	56 days
1954	50 days
1955	27 days
1956	41 days
1957	34 days
1958	34 days
1959	47 days
1960	32 days
1961	26 days
1962	32 days
1963	39 days
1964	37 days
1965	70 days
1966	36 days
1967	66 days
1968	61 days
1969	35 days
1970	36 days
1971	28 days
1972	42 days
1973	16 days
1974	31 days
1975	34 days
1976	25 days
1977	28 days
1978	29 days
1979	31 days
1980	66 days
1981	34 days
1982	41 days
1983	33 days
1984	29 days
1985	71 days
1986	56 days
1987	27 days
1988	33 days
1989	27 days
1990	48 days
1991	38 days
1992	24 days
1993	32 days
1994	40 days
1995	21 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

82 years, 1900 to 1989

A day with at least 34.9 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 88.7 mm (3.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Birchip 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	34.9 mm (1.4 in)
5 years	50.3 mm (2.0 in)
10 years	60.1 mm (2.4 in)
25 years	72.0 mm (2.8 in)
50 years	80.5 mm (3.2 in)
100 years	88.7 mm (3.5 in)	Longer than the 82 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, 82 years of values from 1900 to 1989.

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: 88.6 mm (3.5 in) in 1973; 83.3 mm (3.3 in) in 1961; 76.7 mm (3.0 in) in 1957.

Download the Data

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