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Data as of 2025-12-31
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Built 2026-10-16 (16 October 2026)

Hamilton Weather Records (ASN00023361)

Record envelope, standing records and threshold days for Hamilton (ASN00023361), Australia, with 51 years of record.

Key Facts for Hamilton

  • Hamilton (ASN00023361) is a weather station in Australia at -34.21 latitude and 138.87 longitude, 372 m (1,220 ft) above sea level.
  • The station reports from 1964 to 2014, 51 years of record.
  • 0 records set at Hamilton still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Hamilton set a daily record precipitation of 19.8 mm (0.8 in) on 1 August 2014.

About the Station

  • Location: Australia, -34.21 latitude, 138.87 longitude.
  • Elevation: 372 m (1,220 ft).
  • Period of record: 1964 to 2014, 51 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Hamilton, with 2026 drawn through them The band shows the record high and record low for each calendar day at Hamilton. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Hamilton. 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 Hamilton, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
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Which Years Hold Standing Records

0 standing records
Standing records at Hamilton by the year they were set 0 records at Hamilton still stand. 00000000000
0 records at Hamilton still stand.
Standing records at Hamilton by the year they were set
Year setStanding records

All-Time Record Progression

2 new records
When Hamilton set new all-time records 2 all-time records were set at Hamilton between 31 October 1997 and 12 December 2008. Each dot is a new record. Record daily precipitation31 October 1997: Record daily precipitation 65.0 mm (2.6 in)12 December 2008: Record daily precipitation 73.0 mm (2.9 in)20002005
2 all-time records were set at Hamilton between 31 October 1997 and 12 December 2008. Each dot is a new record.
When Hamilton set new all-time records
DateKindDetail
1997-10-31Record daily precipitationRecord daily precipitation 65.0 mm (2.6 in)
2008-12-12Record daily precipitationRecord daily precipitation 73.0 mm (2.9 in)

Wettest Day of Each Month

Dec: 73.0 mm (2.9 in)
Record daily precipitation for each month at Hamilton The wettest day on record for each calendar month at Hamilton. The most was 73.0 mm (2.9 in) on 12 December 2008. 020406080 Jan: 42.6 mm (1.7 in), 20 January 2007 Jan Feb: 61.2 mm (2.4 in), 6 February 1973 Feb Mar: 49.0 mm (1.9 in), 16 March 1985 Mar Apr: 38.6 mm (1.5 in), 29 April 2007 Apr May: 33.6 mm (1.3 in), 13 May 1974 May Jun: 38.0 mm (1.5 in), 2 June 1981 Jun Jul: 55.0 mm (2.2 in), 8 July 1993 Jul Aug: 34.0 mm (1.3 in), 27 August 1970 Aug Sep: 57.0 mm (2.2 in), 10 September 1985 Sep Oct: 65.0 mm (2.6 in), 31 October 1997 Oct Nov: 62.4 mm (2.5 in), 10 November 1981 Nov Dec: 73.0 mm (2.9 in), 12 December 2008 Dec
The wettest day on record for each calendar month at Hamilton. The most was 73.0 mm (2.9 in) on 12 December 2008.
Record daily precipitation for each month at Hamilton
MonthRecord daily precipitation (mm)Date
Jan42.6 mm (1.7 in)20 January 2007
Feb61.2 mm (2.4 in)6 February 1973
Mar49.0 mm (1.9 in)16 March 1985
Apr38.6 mm (1.5 in)29 April 2007
May33.6 mm (1.3 in)13 May 1974
Jun38.0 mm (1.5 in)2 June 1981
Jul55.0 mm (2.2 in)8 July 1993
Aug34.0 mm (1.3 in)27 August 1970
Sep57.0 mm (2.2 in)10 September 1985
Oct65.0 mm (2.6 in)31 October 1997
Nov62.4 mm (2.5 in)10 November 1981
Dec73.0 mm (2.9 in)12 December 2008

Latest Records

20
Latest records at Hamilton
DateStationRecordValueBeat old record byOld record stoodSignificance
1 August 2014Hamilton, AUdaily rain19.8 mm (0.8 in)5.0 mm (0.20 in)17 years19 of 100 (Routine)
18 July 2014Hamilton, AUdaily rain15.6 mm (0.6 in)7.0 mm (0.28 in)24 years20 of 100 (Routine)
10 July 2014Hamilton, AUdaily rain18.8 mm (0.7 in)5.8 mm (0.23 in)47 years20 of 100 (Routine)
28 June 2014Hamilton, AUdaily rain (Tie)18.8 mm (0.7 in)tie11 years2 of 100 (Routine)
14 June 2014Hamilton, AUdaily rain16.4 mm (0.6 in)9.2 mm (0.36 in)15 years20 of 100 (Routine)
1 June 2013Hamilton, AUdaily rain33.0 mm (1.3 in)8.0 mm (0.31 in)7 years20 of 100 (Routine)
23 May 2013Hamilton, AUdaily rain18.6 mm (0.7 in)1.2 mm (0.05 in)2 years7 of 100 (Routine)
30 November 2012Hamilton, AUdaily rain (Tie)3.6 mm (0.14 in)tie46 years4 of 100 (Routine)
25 May 2012Hamilton, AUdaily rain15.2 mm (0.6 in)0.6 mm (0.02 in)13 years8 of 100 (Routine)
11 February 2012Hamilton, AUdaily rain6.0 mm (0.24 in)1.8 mm (0.07 in)12 years8 of 100 (Routine)
18 December 2011Hamilton, AUdaily rain34.0 mm (1.3 in)3.2 mm (0.13 in)13 years11 of 100 (Routine)
17 August 2011Hamilton, AUdaily rain16.8 mm (0.7 in)3.4 mm (0.13 in)9 years12 of 100 (Routine)
23 May 2011Hamilton, AUdaily rain17.4 mm (0.7 in)7.4 mm (0.29 in)8 years19 of 100 (Routine)
24 March 2011Hamilton, AUdaily rain25.2 mm (1.0 in)11.2 mm (0.4 in)4 years22 of 100 (Routine)
21 March 2011Hamilton, AUdaily rain24.8 mm (1.0 in)8.4 mm (0.33 in)9 years19 of 100 (Routine)
8 March 2011Hamilton, AUdaily rain (Tie)6.8 mm (0.27 in)tie28 years3 of 100 (Routine)
19 February 2011Hamilton, AUdaily rain34.4 mm (1.4 in)9.8 mm (0.39 in)43 years25 of 100 (Routine)
19 December 2010Hamilton, AUdaily rain5.4 mm (0.21 in)0.6 mm (0.02 in)17 years9 of 100 (Routine)
8 December 2010Hamilton, AUdaily rain66.0 mm (2.6 in)43.0 mm (1.7 in)5 years45 of 100 (Notable)
7 December 2010Hamilton, AUdaily rain18.0 mm (0.7 in)1.4 mm (0.06 in)24 years12 of 100 (Routine)

Extremes by Year

1964 to 2014
Yearly extremes at Hamilton: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)73.0 mm (2.9 in)200833.6 mm (1.3 in)51
Wettest five days (Rx5day)104.0 mm (4.1 in)200859.6 mm (2.3 in)51
Longest dry spell (CDD)71 days198528 days51

Wettest day (Rx1day)

Wettest day (Rx1day) at Hamilton by year The wettest day of the year at Hamilton, 1964 to 2014. The record is 73.0 mm (2.9 in) in 2008, marked on the chart; the median year is 33.6 mm (1.3 in). 02040608019701980199020002010Record: 73.0 mm (2.9 in) in 2008
The wettest day of the year at Hamilton, 1964 to 2014. The record is 73.0 mm (2.9 in) in 2008, marked on the chart; the median year is 33.6 mm (1.3 in).
Wettest day (Rx1day) at Hamilton by year
YearWettest day (Rx1day)
196427.2 mm (1.1 in)
196524.1 mm (0.9 in)
196633.3 mm (1.3 in)
196724.6 mm (1.0 in)
196835.8 mm (1.4 in)
196952.1 mm (2.1 in)
197034.0 mm (1.3 in)
197127.4 mm (1.1 in)
197226.9 mm (1.1 in)
197361.2 mm (2.4 in)
197433.6 mm (1.3 in)
197527.2 mm (1.1 in)
197619.6 mm (0.8 in)
197731.2 mm (1.2 in)
197830.0 mm (1.2 in)
197930.0 mm (1.2 in)
198046.6 mm (1.8 in)
198162.4 mm (2.5 in)
198227.0 mm (1.1 in)
198349.6 mm (2.0 in)
198427.0 mm (1.1 in)
198557.0 mm (2.2 in)
198633.8 mm (1.3 in)
198726.6 mm (1.0 in)
198831.2 mm (1.2 in)
198933.6 mm (1.3 in)
199028.0 mm (1.1 in)
199128.6 mm (1.1 in)
199233.2 mm (1.3 in)
199355.0 mm (2.2 in)
199430.4 mm (1.2 in)
199544.2 mm (1.7 in)
199632.6 mm (1.3 in)
199765.0 mm (2.6 in)
199827.2 mm (1.1 in)
199933.8 mm (1.3 in)
200044.0 mm (1.7 in)
200142.0 mm (1.7 in)
200238.0 mm (1.5 in)
200353.8 mm (2.1 in)
200430.0 mm (1.2 in)
200535.0 mm (1.4 in)
200634.0 mm (1.3 in)
200742.6 mm (1.7 in)
200873.0 mm (2.9 in)
200942.2 mm (1.7 in)
201066.0 mm (2.6 in)
201134.4 mm (1.4 in)
201231.8 mm (1.3 in)
201333.0 mm (1.3 in)
201419.8 mm (0.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Hamilton by year The wettest five days of the year at Hamilton, 1964 to 2014. The record is 104.0 mm (4.1 in) in 2008, marked on the chart; the median year is 59.6 mm (2.3 in). 2040608010012019701980199020002010Record: 104.0 mm (4.1 in) in 2008
The wettest five days of the year at Hamilton, 1964 to 2014. The record is 104.0 mm (4.1 in) in 2008, marked on the chart; the median year is 59.6 mm (2.3 in).
Wettest five days (Rx5day) at Hamilton by year
YearWettest five days (Rx5day)
196454.9 mm (2.2 in)
196542.2 mm (1.7 in)
196681.7 mm (3.2 in)
196742.1 mm (1.7 in)
196876.7 mm (3.0 in)
196965.2 mm (2.6 in)
197055.1 mm (2.2 in)
197147.7 mm (1.9 in)
197242.4 mm (1.7 in)
1973100.0 mm (3.9 in)
197487.2 mm (3.4 in)
197557.2 mm (2.3 in)
197654.0 mm (2.1 in)
197754.6 mm (2.1 in)
197852.8 mm (2.1 in)
197976.0 mm (3.0 in)
198051.0 mm (2.0 in)
198163.0 mm (2.5 in)
198267.0 mm (2.6 in)
198364.8 mm (2.6 in)
198444.2 mm (1.7 in)
198574.0 mm (2.9 in)
198658.7 mm (2.3 in)
198761.6 mm (2.4 in)
198863.2 mm (2.5 in)
198947.4 mm (1.9 in)
199062.2 mm (2.4 in)
199145.8 mm (1.8 in)
199293.8 mm (3.7 in)
199387.2 mm (3.4 in)
199454.8 mm (2.2 in)
199550.0 mm (2.0 in)
199654.0 mm (2.1 in)
1997101.2 mm (4.0 in)
199842.4 mm (1.7 in)
199949.4 mm (1.9 in)
200088.4 mm (3.5 in)
200164.0 mm (2.5 in)
200247.6 mm (1.9 in)
200379.2 mm (3.1 in)
200459.6 mm (2.3 in)
200575.4 mm (3.0 in)
200643.7 mm (1.7 in)
2007100.6 mm (4.0 in)
2008104.0 mm (4.1 in)
200982.0 mm (3.2 in)
2010101.8 mm (4.0 in)
201160.6 mm (2.4 in)
201241.2 mm (1.6 in)
201336.8 mm (1.4 in)
201442.2 mm (1.7 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Hamilton by year The longest dry spell of the year at Hamilton, 1964 to 2014. The record is 71 days in 1985, marked on the chart; the median year is 28 days. 02040608019701980199020002010Record: 71 days in 1985
The longest dry spell of the year at Hamilton, 1964 to 2014. The record is 71 days in 1985, marked on the chart; the median year is 28 days.
Longest dry spell (CDD) at Hamilton by year
YearLongest dry spell (CDD)
196423 days
196570 days
196626 days
196735 days
196829 days
196934 days
197049 days
197124 days
197247 days
197329 days
197426 days
197529 days
197624 days
197736 days
197823 days
197921 days
198040 days
198132 days
198226 days
198326 days
198432 days
198571 days
198636 days
198724 days
198827 days
198931 days
199021 days
199143 days
199235 days
199330 days
199439 days
199520 days
199622 days
199727 days
199825 days
199926 days
200024 days
200124 days
200237 days
200319 days
200444 days
200528 days
200648 days
200756 days
200846 days
200938 days
201015 days
201116 days
201223 days
201322 days
201413 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

45 years, 1964 to 2009

A day with at least 34.3 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 88.9 mm (3.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Hamilton: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years34.3 mm (1.4 in)
5 years45.0 mm (1.8 in)
10 years53.4 mm (2.1 in)
25 years65.9 mm (2.6 in)
50 years76.7 mm (3.0 in)Longer than the 45 years of record
100 years88.9 mm (3.5 in)Longer than the 45 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, 45 years of values from 1964 to 2009.

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: 73.0 mm (2.9 in) in 2008; 65.0 mm (2.6 in) in 1997; 62.4 mm (2.5 in) in 1981.

Download the Data

  • Data for Hamilton standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Hamilton 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 . Last revised (2025-12-31).