Willis Island Weather Records (ASM00094299)

Record envelope, standing records and threshold days for Willis Island (ASM00094299), Australia, with 78 years of record.

Key Facts for Willis Island

Willis Island (ASM00094299) is a weather station in Australia at -16.29 latitude and 149.97 longitude, 9 m (30 ft) above sea level.
The station reports from 1948 to 2025, 78 years of record.
1,464 records set at Willis Island still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Willis Island tied a daily record high maximum temperature of 28.5 C (83.3 F) on 23 August 2025.

About the Station

Location: Australia, -16.29 latitude, 149.97 longitude.
Elevation: 9 m (30 ft).
Period of record: 1948 to 2025, 78 years.
Eligible elements: tmax, tmin, 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 Willis Island. 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 Willis Island, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	35.1 C (95.2 F)	21.1 C (70.0 F)	n/a	n/a
Feb	35.2 C (95.4 F)	22.2 C (72.0 F)	n/a	n/a
Mar	33.4 C (92.1 F)	22.2 C (72.0 F)	n/a	n/a
Apr	31.8 C (89.2 F)	22.0 C (71.6 F)	n/a	n/a
May	31.5 C (88.7 F)	19.0 C (66.2 F)	n/a	n/a
Jun	31.5 C (88.7 F)	18.4 C (65.1 F)	n/a	n/a
Jul	29.4 C (84.9 F)	16.8 C (62.2 F)	n/a	n/a
Aug	29.2 C (84.6 F)	17.8 C (64.0 F)	n/a	n/a
Sep	30.7 C (87.3 F)	19.2 C (66.6 F)	n/a	n/a
Oct	32.2 C (90.0 F)	20.7 C (69.3 F)	n/a	n/a
Nov	33.6 C (92.5 F)	21.0 C (69.8 F)	n/a	n/a
Dec	34.1 C (93.4 F)	21.0 C (69.8 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Willis Island still stand. 2022 holds the most, with 80.

Standing records at Willis Island by the year they were set
Year set	Standing records
1948	36
1949	51
1950	50
1951	30
1952	33
1953	32
1954	40
1955	24
1956	48
1957	28
1979	2
1980	31
1981	35
1991	1
1992	34
1993	34
1994	35
1995	7
1996	15
1997	35
1998	35
1999	19
2000	32
2001	31
2002	32
2003	12
2004	25
2006	4
2007	28
2008	40
2009	15
2010	77
2011	38
2012	15
2013	19
2014	15
2015	12
2016	46
2017	23
2018	26
2019	13
2020	43
2021	45
2022	80
2023	51
2024	30
2025	57

Wettest Day of Each Month

Mar: 405.9 mm (16.0 in)

The wettest day on record for each calendar month at Willis Island. The most was 405.9 mm (16.0 in) on 19 March 1980.

Record daily precipitation for each month at Willis Island
Month	Record daily precipitation (mm)	Date
Jan	294.9 mm (11.6 in)	16 January 1998
Feb	400.1 mm (15.8 in)	2 February 1981
Mar	405.9 mm (16.0 in)	19 March 1980
Apr	126.0 mm (5.0 in)	2 April 1989
May	137.9 mm (5.4 in)	5 May 1995
Jun	99.1 mm (3.9 in)	14 June 1993
Jul	79.0 mm (3.1 in)	26 July 1996
Aug	38.1 mm (1.5 in)	22 August 1950
Sep	56.9 mm (2.2 in)	9 September 1954
Oct	121.9 mm (4.8 in)	26 October 1949
Nov	138.9 mm (5.5 in)	5 November 1955
Dec	127.0 mm (5.0 in)	30 December 1997

Period of Record Coverage

1948 to 2025

45 years of record at Willis Island, 1948 to 2025. 14 years have data for under 90 percent of days and are left out of rankings: 1957, 1980, 1991, 1997, 1998, 1999, 2004, 2006 and others.

Days with data per year at Willis Island
Year	Days with data	Share of year	Complete
1948	359	98%	Yes
1949	355	97%	Yes
1950	346	95%	Yes
1951	357	98%	Yes
1952	362	99%	Yes
1953	350	96%	Yes
1954	356	98%	Yes
1955	359	98%	Yes
1956	361	99%	Yes
1957	150	41%	No
1980	1	0%	No
1991	24	7%	No
1992	344	94%	Yes
1993	345	95%	Yes
1994	335	92%	Yes
1995	334	92%	Yes
1996	336	92%	Yes
1997	276	76%	No
1998	309	85%	No
1999	310	85%	No
2000	333	91%	Yes
2001	336	92%	Yes
2002	350	96%	Yes
2003	348	95%	Yes
2004	188	51%	No
2006	67	18%	No
2007	329	90%	Yes
2008	339	93%	Yes
2009	341	93%	Yes
2010	338	93%	Yes
2011	321	88%	No
2012	350	96%	Yes
2013	351	96%	Yes
2014	334	92%	Yes
2015	327	90%	No
2016	340	93%	Yes
2017	348	95%	Yes
2018	351	96%	Yes
2019	344	94%	Yes
2020	322	88%	No
2021	302	83%	No
2022	346	95%	Yes
2023	330	90%	Yes
2024	307	84%	No
2025	223	61%	No

Latest Records

Latest records at Willis Island
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 August 2025	Willis Island, AU	daily high max (Tie)	28.5 C (83.3 F)	tie	0 years	1 of 100 (Routine)
21 August 2025	Willis Island, AU	daily high max	28.9 C (84.0 F)	0.4 C (0.7 F)	15 years	14 of 100 (Routine)
20 August 2025	Willis Island, AU	daily high max	28.4 C (83.1 F)	0.1 C (0.2 F)	75 years	29 of 100 (Routine)
1 August 2025	Willis Island, AU	monthly high max (Tie)	29.2 C (84.6 F)	tie	2 years	4 of 100 (Routine)
31 July 2025	Willis Island, AU	daily high max	29.0 C (84.2 F)	0.7 C (1.3 F)	76 years	35 of 100 (Notable)
31 July 2025	Willis Island, AU	daily high min	23.4 C (74.1 F)	0.1 C (0.2 F)	76 years	29 of 100 (Routine)
30 July 2025	Willis Island, AU	daily high max	28.6 C (83.5 F)	0.2 C (0.4 F)	4 years	9 of 100 (Routine)
29 July 2025	Willis Island, AU	daily high max (Tie)	28.5 C (83.3 F)	tie	4 years	2 of 100 (Routine)
28 July 2025	Willis Island, AU	daily high max	29.2 C (84.6 F)	0.9 C (1.6 F)	75 years	37 of 100 (Notable)
27 July 2025	Willis Island, AU	daily high max	29.0 C (84.2 F)	1.0 C (1.8 F)	8 years	18 of 100 (Routine)
27 July 2025	Willis Island, AU	daily high min	24.2 C (75.6 F)	0.1 C (0.2 F)	15 years	11 of 100 (Routine)
25 July 2025	Willis Island, AU	daily high max	28.5 C (83.3 F)	0.2 C (0.4 F)	4 years	9 of 100 (Routine)
24 July 2025	Willis Island, AU	daily high max	28.3 C (82.9 F)	0.3 C (0.5 F)	4 years	10 of 100 (Routine)
24 July 2025	Willis Island, AU	daily high min (Tie)	24.4 C (75.9 F)	tie	10 years	2 of 100 (Routine)
23 July 2025	Willis Island, AU	daily high min	24.5 C (76.1 F)	0.7 C (1.3 F)	22 years	19 of 100 (Routine)
23 July 2025	Willis Island, AU	daily high max	28.3 C (82.9 F)	0.6 C (1.1 F)	8 years	14 of 100 (Routine)
19 July 2025	Willis Island, AU	daily high min	24.6 C (76.3 F)	0.4 C (0.7 F)	4 years	11 of 100 (Routine)
18 July 2025	Willis Island, AU	daily high min (Tie)	24.3 C (75.7 F)	tie	27 years	3 of 100 (Routine)
11 July 2025	Willis Island, AU	daily high max	28.6 C (83.5 F)	0.3 C (0.5 F)	68 years	29 of 100 (Routine)
10 July 2025	Willis Island, AU	daily high min	25.1 C (77.2 F)	0.8 C (1.4 F)	4 years	15 of 100 (Routine)

Extremes by Year

1948 to 2025

Yearly extremes at Willis Island: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	35.2 C (95.4 F)	2002	32.8 C (91.0 F)	45
Coldest night (TNn)	16.8 C (62.2 F)	2002	19.8 C (67.6 F)	45
Wettest day (Rx1day)	405.9 mm (16.0 in)	1980	98.6 mm (3.9 in)	60
Wettest five days (Rx5day)	1,022.0 mm (40.2 in)	1997	187.1 mm (7.4 in)	56
Longest dry spell (CDD)	129 days	2011	20 days	60

Hottest day (TXx)

The hottest day of the year at Willis Island, 1948 to 2025. The record is 35.2 C (95.4 F) in 2002, marked on the chart; the median year is 32.8 C (91.0 F).

Hottest day (TXx) at Willis Island by year
Year	Hottest day (TXx)
1948	32.2 C (90.0 F)
1949	32.2 C (90.0 F)
1950	32.2 C (90.0 F)
1951	32.2 C (90.0 F)
1952	32.8 C (91.0 F)
1953	32.8 C (91.0 F)
1954	32.2 C (90.0 F)
1955	32.8 C (91.0 F)
1956	33.3 C (91.9 F)
1957	32.2 C (90.0 F)
1974	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	31.0 C (87.8 F)
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	32.8 C (91.0 F)
1992	34.1 C (93.4 F)
1993	32.7 C (90.9 F)
1994	33.5 C (92.3 F)
1995	32.6 C (90.7 F)
1996	32.6 C (90.7 F)
1997	31.9 C (89.4 F)
1998	32.0 C (89.6 F)
1999	31.8 C (89.2 F)
2000	33.6 C (92.5 F)
2001	34.1 C (93.4 F)
2002	35.2 C (95.4 F)
2003	33.4 C (92.1 F)
2004	34.6 C (94.3 F)
2006	31.0 C (87.8 F)
2007	31.5 C (88.7 F)
2008	33.2 C (91.8 F)
2009	33.4 C (92.1 F)
2010	33.3 C (91.9 F)
2011	33.5 C (92.3 F)
2012	32.5 C (90.5 F)
2013	32.8 C (91.0 F)
2014	32.9 C (91.2 F)
2015	32.8 C (91.0 F)
2016	34.3 C (93.7 F)
2017	33.6 C (92.5 F)
2018	33.9 C (93.0 F)
2019	32.2 C (90.0 F)
2020	33.9 C (93.0 F)
2021	33.1 C (91.6 F)
2022	33.4 C (92.1 F)
2023	32.3 C (90.1 F)
2024	32.9 C (91.2 F)
2025	32.9 C (91.2 F)

Coldest night (TNn)

The coldest night of the year at Willis Island, 1948 to 2025. The record is 16.8 C (62.2 F) in 2002, marked on the chart; the median year is 19.8 C (67.6 F).

Coldest night (TNn) at Willis Island by year
Year	Coldest night (TNn)
1948	17.8 C (64.0 F)
1949	18.9 C (66.0 F)
1950	18.9 C (66.0 F)
1951	20.6 C (69.1 F)
1952	19.4 C (66.9 F)
1953	18.9 C (66.0 F)
1954	18.9 C (66.0 F)
1955	19.4 C (66.9 F)
1956	20.0 C (68.0 F)
1957	21.1 C (70.0 F)
1974	n/a
1976	n/a
1977	n/a
1978	n/a
1979	22.0 C (71.6 F)
1980	19.0 C (66.2 F)
1981	18.0 C (64.4 F)
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	19.2 C (66.6 F)
1993	21.0 C (69.8 F)
1994	23.3 C (73.9 F)
1995	n/a
1996	25.3 C (77.5 F)
1997	19.1 C (66.4 F)
1998	21.4 C (70.5 F)
1999	19.8 C (67.6 F)
2000	19.8 C (67.6 F)
2001	20.5 C (68.9 F)
2002	16.8 C (62.2 F)
2003	19.8 C (67.6 F)
2004	19.6 C (67.3 F)
2006	21.5 C (70.7 F)
2007	18.4 C (65.1 F)
2008	19.2 C (66.6 F)
2009	19.6 C (67.3 F)
2010	21.3 C (70.3 F)
2011	19.4 C (66.9 F)
2012	20.2 C (68.4 F)
2013	19.8 C (67.6 F)
2014	19.3 C (66.7 F)
2015	20.5 C (68.9 F)
2016	19.7 C (67.5 F)
2017	19.3 C (66.7 F)
2018	20.4 C (68.7 F)
2019	20.2 C (68.4 F)
2020	20.0 C (68.0 F)
2021	20.7 C (69.3 F)
2022	20.3 C (68.5 F)
2023	19.9 C (67.8 F)
2024	19.7 C (67.5 F)
2025	20.3 C (68.5 F)

Wettest day (Rx1day)

The wettest day of the year at Willis Island, 1948 to 2025. The record is 405.9 mm (16.0 in) in 1980, marked on the chart; the median year is 98.6 mm (3.9 in).

Wettest day (Rx1day) at Willis Island by year
Year	Wettest day (Rx1day)
1948	55.1 mm (2.2 in)
1949	121.9 mm (4.8 in)
1950	116.1 mm (4.6 in)
1951	102.1 mm (4.0 in)
1952	143.0 mm (5.6 in)
1953	147.1 mm (5.8 in)
1954	103.9 mm (4.1 in)
1955	138.9 mm (5.5 in)
1956	74.9 mm (2.9 in)
1957	226.1 mm (8.9 in)
1974	0.0 mm (0.00 in)
1976	0.0 mm (0.00 in)
1977	0.0 mm (0.00 in)
1978	6.1 mm (0.24 in)
1979	71.9 mm (2.8 in)
1980	405.9 mm (16.0 in)
1981	400.1 mm (15.8 in)
1982	105.9 mm (4.2 in)
1983	71.9 mm (2.8 in)
1984	116.1 mm (4.6 in)
1985	90.9 mm (3.6 in)
1986	129.0 mm (5.1 in)
1987	56.9 mm (2.2 in)
1988	101.1 mm (4.0 in)
1989	126.0 mm (5.0 in)
1990	98.0 mm (3.9 in)
1991	97.0 mm (3.8 in)
1992	119.9 mm (4.7 in)
1993	99.1 mm (3.9 in)
1994	134.9 mm (5.3 in)
1995	137.9 mm (5.4 in)
1996	180.1 mm (7.1 in)
1997	336.0 mm (13.2 in)
1998	294.9 mm (11.6 in)
1999	45.0 mm (1.8 in)
2000	152.9 mm (6.0 in)
2001	141.0 mm (5.6 in)
2002	80.0 mm (3.1 in)
2003	73.9 mm (2.9 in)
2004	101.1 mm (4.0 in)
2006	82.0 mm (3.2 in)
2007	77.7 mm (3.1 in)
2008	126.5 mm (5.0 in)
2009	80.5 mm (3.2 in)
2010	91.9 mm (3.6 in)
2011	81.3 mm (3.2 in)
2012	83.6 mm (3.3 in)
2013	138.4 mm (5.4 in)
2014	113.3 mm (4.5 in)
2015	88.9 mm (3.5 in)
2016	124.2 mm (4.9 in)
2017	57.7 mm (2.3 in)
2018	78.2 mm (3.1 in)
2019	35.3 mm (1.4 in)
2020	47.2 mm (1.9 in)
2021	92.5 mm (3.6 in)
2022	112.0 mm (4.4 in)
2023	65.8 mm (2.6 in)
2024	70.6 mm (2.8 in)
2025	61.2 mm (2.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Willis Island, 1948 to 2025. The record is 1,022.0 mm (40.2 in) in 1997, marked on the chart; the median year is 187.1 mm (7.4 in).

Wettest five days (Rx5day) at Willis Island by year
Year	Wettest five days (Rx5day)
1948	101.4 mm (4.0 in)
1949	281.0 mm (11.1 in)
1950	171.1 mm (6.7 in)
1951	197.1 mm (7.8 in)
1952	292.8 mm (11.5 in)
1953	378.9 mm (14.9 in)
1954	229.9 mm (9.1 in)
1955	217.4 mm (8.6 in)
1956	123.6 mm (4.9 in)
1957	383.7 mm (15.1 in)
1974	n/a
1976	n/a
1977	n/a
1978	n/a
1979	142.1 mm (5.6 in)
1980	470.9 mm (18.5 in)
1981	408.2 mm (16.1 in)
1982	164.3 mm (6.5 in)
1983	169.9 mm (6.7 in)
1984	240.8 mm (9.5 in)
1985	269.7 mm (10.6 in)
1986	205.0 mm (8.1 in)
1987	71.1 mm (2.8 in)
1988	246.2 mm (9.7 in)
1989	193.6 mm (7.6 in)
1990	204.2 mm (8.0 in)
1991	159.3 mm (6.3 in)
1992	145.1 mm (5.7 in)
1993	238.8 mm (9.4 in)
1994	322.1 mm (12.7 in)
1995	202.9 mm (8.0 in)
1996	337.8 mm (13.3 in)
1997	1,022.0 mm (40.2 in)
1998	454.9 mm (17.9 in)
1999	55.3 mm (2.2 in)
2000	250.9 mm (9.9 in)
2001	192.7 mm (7.6 in)
2002	108.9 mm (4.3 in)
2003	89.7 mm (3.5 in)
2004	305.8 mm (12.0 in)
2006	181.6 mm (7.1 in)
2007	138.7 mm (5.5 in)
2008	274.8 mm (10.8 in)
2009	178.3 mm (7.0 in)
2010	251.7 mm (9.9 in)
2011	151.9 mm (6.0 in)
2012	150.0 mm (5.9 in)
2013	357.9 mm (14.1 in)
2014	178.9 mm (7.0 in)
2015	168.9 mm (6.6 in)
2016	133.3 mm (5.2 in)
2017	116.1 mm (4.6 in)
2018	176.8 mm (7.0 in)
2019	105.9 mm (4.2 in)
2020	50.5 mm (2.0 in)
2021	180.1 mm (7.1 in)
2022	172.5 mm (6.8 in)
2023	141.5 mm (5.6 in)
2024	194.7 mm (7.7 in)
2025	127.0 mm (5.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Willis Island, 1948 to 2025. The record is 129 days in 2011, marked on the chart; the median year is 20 days.

Longest dry spell (CDD) at Willis Island by year
Year	Longest dry spell (CDD)
1948	5 days
1949	5 days
1950	6 days
1951	3 days
1952	4 days
1953	5 days
1954	6 days
1955	4 days
1956	5 days
1957	4 days
1974	1 day
1976	1 day
1977	3 days
1978	2 days
1979	11 days
1980	20 days
1981	27 days
1982	15 days
1983	8 days
1984	18 days
1985	13 days
1986	16 days
1987	26 days
1988	15 days
1989	24 days
1990	15 days
1991	32 days
1992	27 days
1993	19 days
1994	52 days
1995	25 days
1996	18 days
1997	10 days
1998	22 days
1999	18 days
2000	6 days
2001	6 days
2002	22 days
2003	20 days
2004	20 days
2006	15 days
2007	26 days
2008	29 days
2009	69 days
2010	37 days
2011	129 days
2012	27 days
2013	44 days
2014	33 days
2015	31 days
2016	32 days
2017	41 days
2018	42 days
2019	29 days
2020	30 days
2021	39 days
2022	35 days
2023	41 days
2024	56 days
2025	19 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

31 years, 1981 to 2024

A day with at least 96.7 mm (3.8 in) of rain is expected about once in 2 years. A day with at least 480.3 mm (18.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Willis Island: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	96.7 mm (3.8 in)
5 years	151.9 mm (6.0 in)
10 years	202.4 mm (8.0 in)
25 years	288.3 mm (11.4 in)
50 years	373.0 mm (14.7 in)	Longer than the 31 years of record
100 years	480.3 mm (18.9 in)	Longer than the 31 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, 31 years of values from 1981 to 2024.

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: 400.1 mm (15.8 in) in 1981; 336.0 mm (13.2 in) in 1997; 294.9 mm (11.6 in) in 1998.

Download the Data

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