Mirtna Weather Records (ASN00036035)

Record envelope, standing records and threshold days for Mirtna (ASN00036035), Australia, with 66 years of record.

Key Facts for Mirtna

Mirtna (ASN00036035) is a weather station in Australia at -21.28 latitude and 146.22 longitude, n/a above sea level.
The station reports from 1913 to 1978, 66 years of record.
0 records set at Mirtna still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Mirtna set a daily record precipitation of 44.0 mm (1.7 in) on 3 September 1978.

About the Station

Location: Australia, -21.28 latitude, 146.22 longitude.
Elevation: n/a.
Period of record: 1913 to 1978, 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 Mirtna. 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 Mirtna, 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 Mirtna still stand.

Wettest Day of Each Month

Mar: 209.6 mm (8.3 in)

The wettest day on record for each calendar month at Mirtna. The most was 209.6 mm (8.3 in) on 14 March 1936.

Record daily precipitation for each month at Mirtna
Month	Record daily precipitation (mm)	Date
Jan	172.7 mm (6.8 in)	28 January 1914
Feb	164.1 mm (6.5 in)	21 February 1971
Mar	209.6 mm (8.3 in)	14 March 1936
Apr	66.0 mm (2.6 in)	22 April 1920
May	79.2 mm (3.1 in)	31 May 1930
Jun	75.2 mm (3.0 in)	24 June 1914
Jul	78.7 mm (3.1 in)	6 July 1956
Aug	40.1 mm (1.6 in)	22 August 1940
Sep	57.9 mm (2.3 in)	8 September 1917
Oct	65.6 mm (2.6 in)	23 October 1975
Nov	127.0 mm (5.0 in)	23 November 1950
Dec	163.3 mm (6.4 in)	29 December 1942

Latest Records

Latest records at Mirtna
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
3 September 1978	Mirtna, AU	daily rain	44.0 mm (1.7 in)	41.5 mm (1.6 in)	31 years	51 of 100 (Notable)
27 August 1978	Mirtna, AU	daily rain	25.1 mm (1.0 in)	17.7 mm (0.7 in)	60 years	42 of 100 (Notable)
18 May 1978	Mirtna, AU	daily rain	21.0 mm (0.8 in)	14.1 mm (0.6 in)	56 years	20 of 100 (Routine)
16 May 1977	Mirtna, AU	daily rain	62.0 mm (2.4 in)	36.6 mm (1.4 in)	56 years	47 of 100 (Notable)
15 May 1977	Mirtna, AU	daily rain	37.6 mm (1.5 in)	35.3 mm (1.4 in)	44 years	43 of 100 (Notable)
14 May 1977	Mirtna, AU	daily rain	22.4 mm (0.9 in)	1.3 mm (0.05 in)	8 years	8 of 100 (Routine)
6 May 1977	Mirtna, AU	daily rain	0.6 mm (0.02 in)	0.6 mm (0.02 in)	64 years	20 of 100 (Routine)
5 May 1977	Mirtna, AU	daily rain	16.6 mm (0.7 in)	14.1 mm (0.6 in)	56 years	20 of 100 (Routine)
22 December 1976	Mirtna, AU	daily rain	34.2 mm (1.3 in)	3.2 mm (0.13 in)	49 years	21 of 100 (Routine)
21 December 1975	Mirtna, AU	daily rain	90.0 mm (3.5 in)	39.2 mm (1.5 in)	48 years	41 of 100 (Notable)
20 December 1975	Mirtna, AU	daily rain	80.2 mm (3.2 in)	27.9 mm (1.1 in)	52 years	36 of 100 (Notable)
10 November 1975	Mirtna, AU	daily rain	17.0 mm (0.7 in)	2.3 mm (0.09 in)	46 years	20 of 100 (Routine)
23 October 1975	Mirtna, AU	monthly rain	65.6 mm (2.6 in)	5.9 mm (0.23 in)	54 years	36 of 100 (Notable)
2 October 1975	Mirtna, AU	daily rain	2.0 mm (0.08 in)	2.0 mm (0.08 in)	61 years	20 of 100 (Routine)
20 June 1975	Mirtna, AU	daily rain	11.6 mm (0.5 in)	2.5 mm (0.10 in)	8 years	9 of 100 (Routine)
19 March 1975	Mirtna, AU	daily rain	57.0 mm (2.2 in)	30.8 mm (1.2 in)	6 years	19 of 100 (Routine)
18 March 1975	Mirtna, AU	daily rain	59.2 mm (2.3 in)	3.6 mm (0.14 in)	20 years	13 of 100 (Routine)
16 January 1975	Mirtna, AU	daily rain	46.8 mm (1.8 in)	38.2 mm (1.5 in)	0 years	23 of 100 (Routine)
28 December 1974	Mirtna, AU	daily rain	30.4 mm (1.2 in)	3.7 mm (0.15 in)	9 years	10 of 100 (Routine)
15 October 1974	Mirtna, AU	daily rain	20.8 mm (0.8 in)	8.1 mm (0.32 in)	48 years	20 of 100 (Routine)

Extremes by Year

1913 to 1978

Yearly extremes at Mirtna: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	209.6 mm (8.3 in)	1936	73.0 mm (2.9 in)	66
Wettest five days (Rx5day)	384.0 mm (15.1 in)	1968	126.3 mm (5.0 in)	66
Longest dry spell (CDD)	223 days	1946	87 days	66

Wettest day (Rx1day)

The wettest day of the year at Mirtna, 1913 to 1978. The record is 209.6 mm (8.3 in) in 1936, marked on the chart; the median year is 73.0 mm (2.9 in).

Wettest day (Rx1day) at Mirtna by year
Year	Wettest day (Rx1day)
1913	135.9 mm (5.4 in)
1914	172.7 mm (6.8 in)
1915	30.2 mm (1.2 in)
1916	40.6 mm (1.6 in)
1917	163.3 mm (6.4 in)
1918	75.4 mm (3.0 in)
1919	49.0 mm (1.9 in)
1920	66.0 mm (2.6 in)
1921	59.7 mm (2.4 in)
1922	75.4 mm (3.0 in)
1923	63.5 mm (2.5 in)
1924	68.6 mm (2.7 in)
1925	53.3 mm (2.1 in)
1926	50.8 mm (2.0 in)
1927	58.4 mm (2.3 in)
1928	112.0 mm (4.4 in)
1929	109.7 mm (4.3 in)
1930	88.9 mm (3.5 in)
1931	51.1 mm (2.0 in)
1932	53.6 mm (2.1 in)
1933	68.3 mm (2.7 in)
1934	54.6 mm (2.1 in)
1935	45.7 mm (1.8 in)
1936	209.6 mm (8.3 in)
1937	88.4 mm (3.5 in)
1938	118.1 mm (4.6 in)
1939	60.5 mm (2.4 in)
1940	71.1 mm (2.8 in)
1941	83.8 mm (3.3 in)
1942	163.3 mm (6.4 in)
1943	45.7 mm (1.8 in)
1944	118.4 mm (4.7 in)
1945	54.4 mm (2.1 in)
1946	91.4 mm (3.6 in)
1947	83.8 mm (3.3 in)
1948	47.0 mm (1.9 in)
1949	61.0 mm (2.4 in)
1950	138.9 mm (5.5 in)
1951	56.9 mm (2.2 in)
1952	27.9 mm (1.1 in)
1953	69.9 mm (2.8 in)
1954	160.5 mm (6.3 in)
1955	67.8 mm (2.7 in)
1956	84.8 mm (3.3 in)
1957	96.0 mm (3.8 in)
1958	120.7 mm (4.8 in)
1959	67.3 mm (2.6 in)
1960	83.8 mm (3.3 in)
1961	59.2 mm (2.3 in)
1962	115.8 mm (4.6 in)
1963	199.9 mm (7.9 in)
1964	59.7 mm (2.4 in)
1965	85.6 mm (3.4 in)
1966	63.5 mm (2.5 in)
1967	135.6 mm (5.3 in)
1968	131.8 mm (5.2 in)
1969	74.9 mm (2.9 in)
1970	77.2 mm (3.0 in)
1971	164.1 mm (6.5 in)
1972	91.4 mm (3.6 in)
1973	51.3 mm (2.0 in)
1974	117.0 mm (4.6 in)
1975	90.0 mm (3.5 in)
1976	41.4 mm (1.6 in)
1977	62.0 mm (2.4 in)
1978	45.6 mm (1.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Mirtna, 1913 to 1978. The record is 384.0 mm (15.1 in) in 1968, marked on the chart; the median year is 126.3 mm (5.0 in).

Wettest five days (Rx5day) at Mirtna by year
Year	Wettest five days (Rx5day)
1913	190.9 mm (7.5 in)
1914	196.9 mm (7.8 in)
1915	43.9 mm (1.7 in)
1916	102.1 mm (4.0 in)
1917	277.1 mm (10.9 in)
1918	144.5 mm (5.7 in)
1919	69.1 mm (2.7 in)
1920	119.6 mm (4.7 in)
1921	106.1 mm (4.2 in)
1922	118.7 mm (4.7 in)
1923	86.4 mm (3.4 in)
1924	165.9 mm (6.5 in)
1925	108.5 mm (4.3 in)
1926	90.2 mm (3.6 in)
1927	113.3 mm (4.5 in)
1928	124.2 mm (4.9 in)
1929	131.0 mm (5.2 in)
1930	109.2 mm (4.3 in)
1931	66.3 mm (2.6 in)
1932	61.2 mm (2.4 in)
1933	104.1 mm (4.1 in)
1934	93.5 mm (3.7 in)
1935	58.4 mm (2.3 in)
1936	312.3 mm (12.3 in)
1937	113.8 mm (4.5 in)
1938	153.9 mm (6.1 in)
1939	75.7 mm (3.0 in)
1940	163.8 mm (6.4 in)
1941	169.1 mm (6.7 in)
1942	192.8 mm (7.6 in)
1943	186.7 mm (7.4 in)
1944	243.3 mm (9.6 in)
1945	77.9 mm (3.1 in)
1946	131.7 mm (5.2 in)
1947	134.7 mm (5.3 in)
1948	52.8 mm (2.1 in)
1949	76.7 mm (3.0 in)
1950	300.2 mm (11.8 in)
1951	130.5 mm (5.1 in)
1952	38.1 mm (1.5 in)
1953	124.9 mm (4.9 in)
1954	256.5 mm (10.1 in)
1955	129.5 mm (5.1 in)
1956	111.2 mm (4.4 in)
1957	120.9 mm (4.8 in)
1958	211.9 mm (8.3 in)
1959	127.6 mm (5.0 in)
1960	167.8 mm (6.6 in)
1961	133.8 mm (5.3 in)
1962	146.7 mm (5.8 in)
1963	244.9 mm (9.6 in)
1964	81.6 mm (3.2 in)
1965	118.7 mm (4.7 in)
1966	128.1 mm (5.0 in)
1967	156.4 mm (6.2 in)
1968	384.0 mm (15.1 in)
1969	108.7 mm (4.3 in)
1970	167.3 mm (6.6 in)
1971	164.1 mm (6.5 in)
1972	169.6 mm (6.7 in)
1973	97.3 mm (3.8 in)
1974	201.0 mm (7.9 in)
1975	190.2 mm (7.5 in)
1976	110.0 mm (4.3 in)
1977	122.0 mm (4.8 in)
1978	84.0 mm (3.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Mirtna, 1913 to 1978. The record is 223 days in 1946, marked on the chart; the median year is 87 days.

Longest dry spell (CDD) at Mirtna by year
Year	Longest dry spell (CDD)
1913	117 days
1914	110 days
1915	131 days
1916	47 days
1917	50 days
1918	100 days
1919	73 days
1920	59 days
1921	66 days
1922	110 days
1923	92 days
1924	77 days
1925	85 days
1926	117 days
1927	69 days
1928	134 days
1929	117 days
1930	84 days
1931	113 days
1932	132 days
1933	42 days
1934	74 days
1935	71 days
1936	59 days
1937	83 days
1938	48 days
1939	79 days
1940	77 days
1941	137 days
1942	44 days
1943	84 days
1944	67 days
1945	50 days
1946	223 days
1947	82 days
1948	89 days
1949	86 days
1950	39 days
1951	101 days
1952	61 days
1953	155 days
1954	81 days
1955	138 days
1956	52 days
1957	92 days
1958	87 days
1959	91 days
1960	121 days
1961	164 days
1962	92 days
1963	125 days
1964	48 days
1965	136 days
1966	61 days
1967	92 days
1968	73 days
1969	161 days
1970	182 days
1971	48 days
1972	169 days
1973	91 days
1974	91 days
1975	79 days
1976	111 days
1977	176 days
1978	58 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, 1913 to 1977

A day with at least 76.5 mm (3.0 in) of rain is expected about once in 2 years. A day with at least 247.9 mm (9.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Mirtna: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	76.5 mm (3.0 in)
5 years	112.3 mm (4.4 in)
10 years	139.6 mm (5.5 in)
25 years	178.8 mm (7.0 in)
50 years	211.7 mm (8.3 in)
100 years	247.9 mm (9.8 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 1913 to 1977.

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: 209.6 mm (8.3 in) in 1936; 199.9 mm (7.9 in) in 1963; 172.7 mm (6.8 in) in 1914.

Download the Data

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