Coonabarabran (Mia Mia) Weather Records (ASN00064016)

Record envelope, standing records and threshold days for Coonabarabran (Mia Mia) (ASN00064016), Australia, with 59 years of record.

Key Facts for Coonabarabran (Mia Mia)

Coonabarabran (Mia Mia) (ASN00064016) is a weather station in Australia at -31.30 latitude and 149.55 longitude, 540 m (1,772 ft) above sea level.
The station reports from 1919 to 1977, 59 years of record.
0 records set at Coonabarabran (Mia Mia) still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Coonabarabran (Mia Mia) set a daily record precipitation of 77.6 mm (3.1 in) on 22 February 1977.

About the Station

Location: Australia, -31.30 latitude, 149.55 longitude.
Elevation: 540 m (1,772 ft).
Period of record: 1919 to 1977, 59 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 Coonabarabran (Mia Mia). 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 Coonabarabran (Mia Mia), 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 Coonabarabran (Mia Mia) still stand.

Wettest Day of Each Month

Jan: 128.0 mm (5.0 in)

The wettest day on record for each calendar month at Coonabarabran (Mia Mia). The most was 128.0 mm (5.0 in) on 19 January 1950.

Record daily precipitation for each month at Coonabarabran (Mia Mia)
Month	Record daily precipitation (mm)	Date
Jan	128.0 mm (5.0 in)	19 January 1950
Feb	109.7 mm (4.3 in)	24 February 1955
Mar	114.8 mm (4.5 in)	9 March 1941
Apr	79.8 mm (3.1 in)	5 April 1950
May	69.1 mm (2.7 in)	13 May 1968
Jun	56.1 mm (2.2 in)	25 June 1956
Jul	100.1 mm (3.9 in)	2 July 1920
Aug	51.8 mm (2.0 in)	23 August 1944
Sep	47.2 mm (1.9 in)	27 September 1958
Oct	89.4 mm (3.5 in)	20 October 1962
Nov	79.5 mm (3.1 in)	22 November 1950
Dec	65.3 mm (2.6 in)	28 December 1973

Latest Records

Latest records at Coonabarabran (Mia Mia)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
22 February 1977	Coonabarabran (Mia Mia), AU	daily rain	77.6 mm (3.1 in)	50.9 mm (2.0 in)	43 years	47 of 100 (Notable)
15 January 1977	Coonabarabran (Mia Mia), AU	daily rain	28.0 mm (1.1 in)	14.3 mm (0.6 in)	29 years	21 of 100 (Routine)
24 December 1976	Coonabarabran (Mia Mia), AU	daily rain	26.0 mm (1.0 in)	18.9 mm (0.7 in)	8 years	25 of 100 (Routine)
10 November 1976	Coonabarabran (Mia Mia), AU	daily rain	20.6 mm (0.8 in)	3.6 mm (0.14 in)	22 years	14 of 100 (Routine)
22 September 1976	Coonabarabran (Mia Mia), AU	daily rain	27.0 mm (1.1 in)	8.2 mm (0.32 in)	6 years	16 of 100 (Routine)
2 September 1976	Coonabarabran (Mia Mia), AU	daily rain	29.6 mm (1.2 in)	17.4 mm (0.7 in)	39 years	38 of 100 (Notable)
20 June 1976	Coonabarabran (Mia Mia), AU	daily rain	33.2 mm (1.3 in)	3.5 mm (0.14 in)	7 years	10 of 100 (Routine)
27 February 1976	Coonabarabran (Mia Mia), AU	daily rain	34.6 mm (1.4 in)	22.7 mm (0.9 in)	6 years	20 of 100 (Routine)
23 January 1976	Coonabarabran (Mia Mia), AU	daily rain	57.6 mm (2.3 in)	15.2 mm (0.6 in)	20 years	20 of 100 (Routine)
13 January 1976	Coonabarabran (Mia Mia), AU	daily rain	58.8 mm (2.3 in)	14.6 mm (0.6 in)	2 years	13 of 100 (Routine)
24 October 1975	Coonabarabran (Mia Mia), AU	daily rain	28.6 mm (1.1 in)	0.9 mm (0.04 in)	20 years	11 of 100 (Routine)
21 June 1975	Coonabarabran (Mia Mia), AU	daily rain	51.0 mm (2.0 in)	25.9 mm (1.0 in)	5 years	34 of 100 (Routine)
4 January 1975	Coonabarabran (Mia Mia), AU	daily rain	45.3 mm (1.8 in)	0.6 mm (0.02 in)	12 years	8 of 100 (Routine)
4 October 1974	Coonabarabran (Mia Mia), AU	daily rain	42.4 mm (1.7 in)	6.3 mm (0.25 in)	0 years	11 of 100 (Routine)
17 May 1974	Coonabarabran (Mia Mia), AU	daily rain	21.0 mm (0.8 in)	9.6 mm (0.38 in)	35 years	20 of 100 (Routine)
16 May 1974	Coonabarabran (Mia Mia), AU	daily rain	8.2 mm (0.32 in)	0.1 mm (0.00 in)	4 years	6 of 100 (Routine)
27 April 1974	Coonabarabran (Mia Mia), AU	daily rain	20.6 mm (0.8 in)	10.2 mm (0.4 in)	8 years	14 of 100 (Routine)
11 January 1974	Coonabarabran (Mia Mia), AU	daily rain	27.5 mm (1.1 in)	14.5 mm (0.6 in)	4 years	15 of 100 (Routine)
8 January 1974	Coonabarabran (Mia Mia), AU	daily rain	103.0 mm (4.1 in)	36.7 mm (1.4 in)	32 years	37 of 100 (Notable)
7 January 1974	Coonabarabran (Mia Mia), AU	daily rain	45.6 mm (1.8 in)	36.2 mm (1.4 in)	6 years	29 of 100 (Routine)

Extremes by Year

1919 to 1977

Yearly extremes at Coonabarabran (Mia Mia): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	128.0 mm (5.0 in)	1950	56.0 mm (2.2 in)	52
Wettest five days (Rx5day)	294.9 mm (11.6 in)	1920	91.8 mm (3.6 in)	52
Longest dry spell (CDD)	77 days	1965	34 days	52

Wettest day (Rx1day)

The wettest day of the year at Coonabarabran (Mia Mia), 1919 to 1977. The record is 128.0 mm (5.0 in) in 1950, marked on the chart; the median year is 56.0 mm (2.2 in).

Wettest day (Rx1day) at Coonabarabran (Mia Mia) by year
Year	Wettest day (Rx1day)
1919	32.5 mm (1.3 in)
1920	100.1 mm (3.9 in)
1928	53.1 mm (2.1 in)
1929	37.3 mm (1.5 in)
1930	39.9 mm (1.6 in)
1931	58.7 mm (2.3 in)
1932	37.6 mm (1.5 in)
1933	44.5 mm (1.8 in)
1934	61.7 mm (2.4 in)
1935	49.5 mm (1.9 in)
1936	70.4 mm (2.8 in)
1937	57.7 mm (2.3 in)
1938	39.9 mm (1.6 in)
1939	36.8 mm (1.4 in)
1940	43.4 mm (1.7 in)
1941	114.8 mm (4.5 in)
1942	51.1 mm (2.0 in)
1943	51.1 mm (2.0 in)
1944	51.8 mm (2.0 in)
1945	48.5 mm (1.9 in)
1946	86.4 mm (3.4 in)
1947	71.6 mm (2.8 in)
1948	68.8 mm (2.7 in)
1949	51.1 mm (2.0 in)
1950	128.0 mm (5.0 in)
1951	43.9 mm (1.7 in)
1952	55.9 mm (2.2 in)
1953	41.7 mm (1.6 in)
1954	49.3 mm (1.9 in)
1955	109.7 mm (4.3 in)
1956	56.1 mm (2.2 in)
1957	38.1 mm (1.5 in)
1958	52.1 mm (2.1 in)
1959	58.7 mm (2.3 in)
1960	47.8 mm (1.9 in)
1961	58.4 mm (2.3 in)
1962	89.4 mm (3.5 in)
1963	44.7 mm (1.8 in)
1964	62.2 mm (2.4 in)
1965	64.3 mm (2.5 in)
1966	56.1 mm (2.2 in)
1967	50.8 mm (2.0 in)
1968	69.1 mm (2.7 in)
1969	76.2 mm (3.0 in)
1970	45.2 mm (1.8 in)
1971	69.6 mm (2.7 in)
1972	75.2 mm (3.0 in)
1973	65.3 mm (2.6 in)
1974	103.0 mm (4.1 in)
1975	51.0 mm (2.0 in)
1976	58.8 mm (2.3 in)
1977	77.6 mm (3.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Coonabarabran (Mia Mia), 1919 to 1977. The record is 294.9 mm (11.6 in) in 1920, marked on the chart; the median year is 91.8 mm (3.6 in).

Wettest five days (Rx5day) at Coonabarabran (Mia Mia) by year
Year	Wettest five days (Rx5day)
1919	60.7 mm (2.4 in)
1920	294.9 mm (11.6 in)
1928	111.7 mm (4.4 in)
1929	53.3 mm (2.1 in)
1930	89.7 mm (3.5 in)
1931	69.6 mm (2.7 in)
1932	65.8 mm (2.6 in)
1933	82.9 mm (3.3 in)
1934	139.9 mm (5.5 in)
1935	80.5 mm (3.2 in)
1936	91.7 mm (3.6 in)
1937	65.6 mm (2.6 in)
1938	56.9 mm (2.2 in)
1939	64.2 mm (2.5 in)
1940	101.8 mm (4.0 in)
1941	145.8 mm (5.7 in)
1942	93.6 mm (3.7 in)
1943	90.7 mm (3.6 in)
1944	77.2 mm (3.0 in)
1945	69.4 mm (2.7 in)
1946	128.6 mm (5.1 in)
1947	131.6 mm (5.2 in)
1948	90.4 mm (3.6 in)
1949	75.7 mm (3.0 in)
1950	224.5 mm (8.8 in)
1951	67.6 mm (2.7 in)
1952	102.7 mm (4.0 in)
1953	86.9 mm (3.4 in)
1954	149.8 mm (5.9 in)
1955	187.1 mm (7.4 in)
1956	93.0 mm (3.7 in)
1957	47.0 mm (1.9 in)
1958	133.9 mm (5.3 in)
1959	123.8 mm (4.9 in)
1960	83.4 mm (3.3 in)
1961	82.3 mm (3.2 in)
1962	91.9 mm (3.6 in)
1963	77.7 mm (3.1 in)
1964	95.2 mm (3.7 in)
1965	64.3 mm (2.5 in)
1966	56.1 mm (2.2 in)
1967	94.5 mm (3.7 in)
1968	103.4 mm (4.1 in)
1969	116.3 mm (4.6 in)
1970	74.0 mm (2.9 in)
1971	163.8 mm (6.4 in)
1972	127.6 mm (5.0 in)
1973	124.8 mm (4.9 in)
1974	196.0 mm (7.7 in)
1975	67.0 mm (2.6 in)
1976	115.2 mm (4.5 in)
1977	121.4 mm (4.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Coonabarabran (Mia Mia), 1919 to 1977. The record is 77 days in 1965, marked on the chart; the median year is 34 days.

Longest dry spell (CDD) at Coonabarabran (Mia Mia) by year
Year	Longest dry spell (CDD)
1919	42 days
1920	32 days
1928	35 days
1929	32 days
1930	18 days
1931	22 days
1932	32 days
1933	21 days
1934	61 days
1935	34 days
1936	25 days
1937	41 days
1938	42 days
1939	26 days
1940	41 days
1941	47 days
1942	36 days
1943	30 days
1944	36 days
1945	31 days
1946	62 days
1947	31 days
1948	35 days
1949	30 days
1950	35 days
1951	31 days
1952	26 days
1953	33 days
1954	49 days
1955	47 days
1956	19 days
1957	58 days
1958	26 days
1959	44 days
1960	22 days
1961	23 days
1962	34 days
1963	31 days
1964	39 days
1965	77 days
1966	29 days
1967	49 days
1968	38 days
1969	26 days
1970	40 days
1971	42 days
1972	36 days
1973	30 days
1974	34 days
1975	40 days
1976	22 days
1977	17 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

50 years, 1920 to 1976

A day with at least 55.3 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 146.6 mm (5.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Coonabarabran (Mia Mia): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	55.3 mm (2.2 in)
5 years	72.7 mm (2.9 in)
10 years	86.6 mm (3.4 in)
25 years	107.4 mm (4.2 in)
50 years	125.7 mm (4.9 in)
100 years	146.6 mm (5.8 in)	Longer than the 50 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, 50 years of values from 1920 to 1976.

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: 128.0 mm (5.0 in) in 1950; 114.8 mm (4.5 in) in 1941; 109.7 mm (4.3 in) in 1955.

Download the Data

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