Daily records
Page built 2026-10-15
Data as of 2026-10-13
Search
Built 2026-10-15 (15 October 2026)

Castlemaine Prison Weather Records (ASN00088110)

Record envelope, standing records and threshold days for Castlemaine Prison (ASN00088110), Australia, with 61 years of record.

Key Facts for Castlemaine Prison

  • Castlemaine Prison (ASN00088110) is a weather station in Australia at -37.08 latitude and 144.24 longitude, 330 m (1,083 ft) above sea level.
  • The station reports from 1966 to 2026, 61 years of record.
  • 1,464 records set at Castlemaine Prison still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Castlemaine Prison set a monthly record high minimum temperature of 17.0 C (62.6 F) on 25 September 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Australia, -37.08 latitude, 144.24 longitude.
  • Elevation: 330 m (1,083 ft).
  • Period of record: 1966 to 2026, 61 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

8 days at or beyond a record
Daily record high and record low at Castlemaine Prison, with 2026 drawn through them The band shows the record high and record low for each calendar day at Castlemaine Prison. The lines show the 2026 daily maximum and minimum. 8 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Castlemaine Prison. The lines show the 2026 daily maximum and minimum. 8 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Castlemaine Prison, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan43.7 C (110.7 F)-0.1 C (31.8 F)41.0 C (105.8 F)7.0 C (44.6 F)
Feb43.9 C (111.0 F)2.5 C (36.5 F)36.0 C (96.8 F)6.0 C (42.8 F)
Mar38.5 C (101.3 F)0.6 C (33.1 F)30.5 C (86.9 F)7.5 C (45.5 F)
Apr34.0 C (93.2 F)-3.0 C (26.6 F)25.0 C (77.0 F)0.0 C (32.0 F)
May26.0 C (78.8 F)-2.6 C (27.3 F)25.0 C (77.0 F)1.5 C (34.7 F)
Jun21.1 C (70.0 F)-4.9 C (23.2 F)17.0 C (62.6 F)1.0 C (33.8 F)
Jul21.4 C (70.5 F)-6.3 C (20.7 F)16.0 C (60.8 F)-1.0 C (30.2 F)
Aug24.7 C (76.5 F)-4.1 C (24.6 F)21.0 C (69.8 F)-1.5 C (29.3 F)
Sep28.9 C (84.0 F)-4.0 C (24.8 F)26.5 C (79.7 F)0.0 C (32.0 F)
Oct34.5 C (94.1 F)-4.0 C (24.8 F)n/an/a
Nov40.1 C (104.2 F)0.0 C (32.0 F)n/an/a
Dec42.0 C (107.6 F)1.0 C (33.8 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Castlemaine Prison by the year they were set 1,464 records at Castlemaine Prison still stand. 1982 holds the most, with 57. 02040601966: 311967: 421968: 301969: 301970: 241971: 191972: 291973: 291974: 221975: 311976: 241977: 221978: 231979: 141980: 251981: 161982: 571983: 261984: 191985: 191986: 271987: 371988: 221989: 101990: 101991: 181992: 261993: 181994: 361995: 411996: 251997: 231998: 291999: 312000: 152001: 172002: 222003: 212004: 192005: 302006: 252007: 162008: 272009: 332010: 182011: 142012: 182013: 372014: 342015: 332016: 282017: 202018: 242019: 342020: 162021: 132022: 92023: 62024: 202025: 122026: 18196619731980198719942001200820152022
1,464 records at Castlemaine Prison still stand. 1982 holds the most, with 57.
Standing records at Castlemaine Prison by the year they were set
Year setStanding records
196631
196742
196830
196930
197024
197119
197229
197329
197422
197531
197624
197722
197823
197914
198025
198116
198257
198326
198419
198519
198627
198737
198822
198910
199010
199118
199226
199318
199436
199541
199625
199723
199829
199931
200015
200117
200222
200321
200419
200530
200625
200716
200827
200933
201018
201114
201218
201337
201434
201533
201628
201720
201824
201934
202016
202113
20229
20236
202420
202512
202618

All-Time Record Progression

5 new records
When Castlemaine Prison set new all-time records 5 all-time records were set at Castlemaine Prison between 21 January 1997 and 19 December 2015. Each dot is a new record. Record high minimum temperatureRecord high maximum temperatureRecord daily precipitation21 January 1997: Record high minimum temperature 27.2 C (81.0 F)29 January 2009: Record high minimum temperature 28.5 C (83.3 F)7 February 2009: Record high maximum temperature 43.9 C (111.0 F)5 February 2011: Record daily precipitation 101.0 mm (4.0 in)19 December 2015: Record high minimum temperature 28.9 C (84.0 F)2000200520102015
5 all-time records were set at Castlemaine Prison between 21 January 1997 and 19 December 2015. Each dot is a new record.
When Castlemaine Prison set new all-time records
DateKindDetail
1997-01-21Record high minimum temperatureRecord high minimum temperature 27.2 C (81.0 F)
2009-01-29Record high minimum temperatureRecord high minimum temperature 28.5 C (83.3 F)
2009-02-07Record high maximum temperatureRecord high maximum temperature 43.9 C (111.0 F)
2011-02-05Record daily precipitationRecord daily precipitation 101.0 mm (4.0 in)
2015-12-19Record high minimum temperatureRecord high minimum temperature 28.9 C (84.0 F)

Wettest Day of Each Month

Feb: 101.0 mm (4.0 in)
Record daily precipitation for each month at Castlemaine Prison The wettest day on record for each calendar month at Castlemaine Prison. The most was 101.0 mm (4.0 in) on 5 February 2011. 050100150 Jan: 91.2 mm (3.6 in), 13 January 1973 Jan Feb: 101.0 mm (4.0 in), 5 February 2011 Feb Mar: 68.0 mm (2.7 in), 21 March 1989 Mar Apr: 63.0 mm (2.5 in), 2 April 2024 Apr May: 65.6 mm (2.6 in), 18 May 2007 May Jun: 46.4 mm (1.8 in), 1 June 2013 Jun Jul: 46.4 mm (1.8 in), 18 July 1990 Jul Aug: 38.4 mm (1.5 in), 7 August 1978 Aug Sep: 53.0 mm (2.1 in), 14 September 2016 Sep Oct: 48.5 mm (1.9 in), 8 October 1975 Oct Nov: 76.2 mm (3.0 in), 27 November 2010 Nov Dec: 54.5 mm (2.1 in), 4 December 1990 Dec
The wettest day on record for each calendar month at Castlemaine Prison. The most was 101.0 mm (4.0 in) on 5 February 2011.
Record daily precipitation for each month at Castlemaine Prison
MonthRecord daily precipitation (mm)Date
Jan91.2 mm (3.6 in)13 January 1973
Feb101.0 mm (4.0 in)5 February 2011
Mar68.0 mm (2.7 in)21 March 1989
Apr63.0 mm (2.5 in)2 April 2024
May65.6 mm (2.6 in)18 May 2007
Jun46.4 mm (1.8 in)1 June 2013
Jul46.4 mm (1.8 in)18 July 1990
Aug38.4 mm (1.5 in)7 August 1978
Sep53.0 mm (2.1 in)14 September 2016
Oct48.5 mm (1.9 in)8 October 1975
Nov76.2 mm (3.0 in)27 November 2010
Dec54.5 mm (2.1 in)4 December 1990

Period of Record Coverage

1966 to 2026
Days with data per year at Castlemaine Prison 61 years of record at Castlemaine Prison, 1966 to 2026. 9 years have data for under 90 percent of days and are left out of rankings: 1966, 1990, 2020, 2021, 2022, 2023, 2024, 2025 and others. 1966: 306 of 365 days1967: 364 of 365 days1968: 365 of 366 days1969: 364 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 364 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 365 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 363 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 364 of 365 days1987: 364 of 365 days1988: 362 of 366 days1989: 352 of 365 days1990: 265 of 365 days1991: 364 of 365 days1992: 365 of 366 days1993: 365 of 365 days1994: 360 of 365 days1995: 341 of 365 days1996: 359 of 366 days1997: 363 of 365 days1998: 362 of 365 days1999: 360 of 365 days2000: 365 of 366 days2001: 359 of 365 days2002: 364 of 365 days2003: 363 of 365 days2004: 360 of 366 days2005: 363 of 365 days2006: 362 of 365 days2007: 363 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 359 of 365 days2011: 361 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 364 of 365 days2016: 344 of 366 days2017: 354 of 365 days2018: 353 of 365 days2019: 346 of 365 days2020: 273 of 366 days2021: 254 of 365 days2022: 204 of 365 days2023: 235 of 365 days2024: 303 of 366 days2025: 304 of 365 days2026: 239 of 365 days197019801990200020102020
61 years of record at Castlemaine Prison, 1966 to 2026. 9 years have data for under 90 percent of days and are left out of rankings: 1966, 1990, 2020, 2021, 2022, 2023, 2024, 2025 and others.
Days with data per year at Castlemaine Prison
YearDays with dataShare of yearComplete
196630684%No
1967364100%Yes
1968365100%Yes
1969364100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973364100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980365100%Yes
1981365100%Yes
1982365100%Yes
198336399%Yes
1984366100%Yes
1985365100%Yes
1986364100%Yes
1987364100%Yes
198836299%Yes
198935296%Yes
199026573%No
1991364100%Yes
1992365100%Yes
1993365100%Yes
199436099%Yes
199534193%Yes
199635998%Yes
199736399%Yes
199836299%Yes
199936099%Yes
2000365100%Yes
200135998%Yes
2002364100%Yes
200336399%Yes
200436098%Yes
200536399%Yes
200636299%Yes
200736399%Yes
2008366100%Yes
2009365100%Yes
201035998%Yes
201136199%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015364100%Yes
201634494%Yes
201735497%Yes
201835397%Yes
201934695%Yes
202027375%No
202125470%No
202220456%No
202323564%No
202430383%No
202530483%No
202623965%No

Latest Records

20
Latest records at Castlemaine Prison
DateStationRecordValueBeat old record byOld record stoodSignificance
25 September 2026Castlemaine Prison, AUmonthly high min (Provisional)17.0 C (62.6 F)1.0 C (1.8 F)38 years29 of 100 (Routine)
20 September 2026Castlemaine Prison, AUdaily high max (Provisional)26.5 C (79.7 F)2.3 C (4.1 F)7 years14 of 100 (Routine)
14 September 2026Castlemaine Prison, AUdaily high min (Provisional)14.0 C (57.2 F)1.5 C (2.7 F)11 years13 of 100 (Routine)
25 August 2026Castlemaine Prison, AUdaily high min (Tie, Provisional)11.0 C (51.8 F)tie27 years3 of 100 (Routine)
24 August 2026Castlemaine Prison, AUdaily high min (Provisional)9.5 C (49.1 F)0.3 C (0.5 F)27 years14 of 100 (Routine)
20 August 2026Castlemaine Prison, AUdaily rain (Provisional)22.0 mm (0.9 in)6.8 mm (0.27 in)9 years20 of 100 (Routine)
10 August 2026Castlemaine Prison, AUdaily rain37.0 mm (1.5 in)11.1 mm (0.4 in)60 years46 of 100 (Notable)
16 July 2026Castlemaine Prison, AUdaily high max16.0 C (60.8 F)0.7 C (1.3 F)56 years26 of 100 (Routine)
3 July 2026Castlemaine Prison, AUdaily rain19.4 mm (0.8 in)8.5 mm (0.33 in)57 years20 of 100 (Routine)
2 July 2026Castlemaine Prison, AUdaily rain15.6 mm (0.6 in)4.8 mm (0.19 in)36 years20 of 100 (Routine)
1 July 2026Castlemaine Prison, AUdaily rain22.0 mm (0.9 in)9.0 mm (0.35 in)60 years20 of 100 (Routine)
1 July 2026Castlemaine Prison, AUdaily high min11.0 C (51.8 F)1.2 C (2.2 F)20 years15 of 100 (Routine)
30 June 2026Castlemaine Prison, AUdaily rain31.0 mm (1.2 in)8.0 mm (0.31 in)7 years22 of 100 (Routine)
30 June 2026Castlemaine Prison, AUdaily high min (Tie)10.0 C (50.0 F)tie16 years2 of 100 (Routine)
18 June 2026Castlemaine Prison, AUmonthly high min14.0 C (57.2 F)1.0 C (1.8 F)31 years27 of 100 (Routine)
17 June 2026Castlemaine Prison, AUmonthly high min (Tie)13.0 C (55.4 F)tie31 years6 of 100 (Routine)
13 June 2026Castlemaine Prison, AUdaily high min12.5 C (54.5 F)2.3 C (4.1 F)35 years22 of 100 (Routine)
10 June 2026Castlemaine Prison, AUdaily high min12.5 C (54.5 F)0.5 C (0.9 F)59 years24 of 100 (Routine)
18 May 2026Castlemaine Prison, AUdaily high min13.0 C (55.4 F)0.8 C (1.4 F)12 years11 of 100 (Routine)
17 May 2026Castlemaine Prison, AUdaily high min13.0 C (55.4 F)0.7 C (1.3 F)19 years12 of 100 (Routine)

Climate Trend

49 complete years, 1967 to 2025
Annual mean temperature at Castlemaine Prison as warming stripes, 1967 to 2025 One stripe for each of 49 complete years at Castlemaine Prison, 1967 to 2025. Blue stripes are years cooler than the station's own mean of 13.8 C (56.8 F); red stripes are warmer. The coolest year was 1996, at 12.7 C (54.9 F), and the warmest was 2014, at 14.8 C (58.6 F). The strongest colour marks a difference of 1.2 C (2.2 F). 1967: 13.5 C, -0.3 C from the station mean1968: 13.7 C, -0.1 C from the station mean1969: 13.4 C, -0.4 C from the station mean1970: 13.3 C, -0.5 C from the station mean1971: 13.7 C, -0.1 C from the station mean1972: 13.7 C, -0.1 C from the station mean1973: 13.8 C, 0.0 C from the station mean1974: 13.9 C, +0.1 C from the station mean1975: 14.1 C, +0.3 C from the station mean1976: 13.5 C, -0.3 C from the station mean1977: 13.6 C, -0.2 C from the station mean1978: 13.7 C, -0.1 C from the station mean1979: 13.8 C, 0.0 C from the station mean1980: 14.0 C, +0.2 C from the station mean1981: 14.3 C, +0.5 C from the station mean1982: 14.1 C, +0.3 C from the station mean1983: 14.0 C, +0.2 C from the station mean1984: 13.2 C, -0.6 C from the station mean1985: 13.6 C, -0.3 C from the station mean1986: 12.9 C, -0.9 C from the station mean1987: 13.2 C, -0.6 C from the station mean1988: 14.2 C, +0.3 C from the station mean1989: 13.5 C, -0.3 C from the station mean1992: 12.8 C, -1.0 C from the station mean1993: 13.3 C, -0.5 C from the station mean1994: 13.4 C, -0.4 C from the station mean1996: 12.7 C, -1.1 C from the station mean1997: 13.8 C, 0.0 C from the station mean1998: 13.4 C, -0.4 C from the station mean1999: 13.9 C, +0.1 C from the station mean2000: 14.0 C, +0.2 C from the station mean2001: 13.8 C, 0.0 C from the station mean2002: 13.9 C, +0.1 C from the station mean2003: 13.8 C, 0.0 C from the station mean2004: 13.3 C, -0.5 C from the station mean2005: 13.9 C, +0.1 C from the station mean2006: 13.9 C, +0.1 C from the station mean2007: 14.7 C, +0.9 C from the station mean2008: 13.8 C, 0.0 C from the station mean2009: 14.5 C, +0.7 C from the station mean2010: 13.8 C, 0.0 C from the station mean2011: 13.7 C, -0.1 C from the station mean2012: 13.6 C, -0.2 C from the station mean2013: 14.5 C, +0.7 C from the station mean2014: 14.8 C, +1.0 C from the station mean2015: 14.4 C, +0.6 C from the station mean2017: 14.7 C, +0.9 C from the station mean2019: 14.3 C, +0.5 C from the station mean2025: 14.6 C, +0.8 C from the station mean196719751980198519901995200020052010201520202025
One stripe for each of 49 complete years at Castlemaine Prison, 1967 to 2025. Blue stripes are years cooler than the station's own mean of 13.8 C (56.8 F); red stripes are warmer. The coolest year was 1996, at 12.7 C (54.9 F), and the warmest was 2014, at 14.8 C (58.6 F). The strongest colour marks a difference of 1.2 C (2.2 F).
Annual mean temperature at Castlemaine Prison as warming stripes, 1967 to 2025
YearAnnual mean temperatureDifference from the station mean
196713.5 C-0.27 C
196813.7 C-0.10 C
196913.4 C-0.36 C
197013.3 C-0.50 C
197113.7 C-0.10 C
197213.7 C-0.08 C
197313.8 C-0.01 C
197413.9 C+0.12 C
197514.1 C+0.27 C
197613.5 C-0.29 C
197713.6 C-0.20 C
197813.7 C-0.06 C
197913.8 C+0.03 C
198014.0 C+0.24 C
198114.3 C+0.53 C
198214.1 C+0.27 C
198314.0 C+0.19 C
198413.2 C-0.62 C
198513.6 C-0.25 C
198612.9 C-0.94 C
198713.2 C-0.59 C
198814.2 C+0.35 C
198913.5 C-0.26 C
199212.8 C-0.99 C
199313.3 C-0.49 C
199413.4 C-0.44 C
199612.7 C-1.10 C
199713.8 C-0.02 C
199813.4 C-0.37 C
199913.9 C+0.13 C
200014.0 C+0.23 C
200113.8 C+0.03 C
200213.9 C+0.14 C
200313.8 C+0.01 C
200413.3 C-0.48 C
200513.9 C+0.14 C
200613.9 C+0.08 C
200714.7 C+0.94 C
200813.8 C-0.01 C
200914.5 C+0.74 C
201013.8 C+0.03 C
201113.7 C-0.07 C
201213.6 C-0.24 C
201314.5 C+0.66 C
201414.8 C+0.98 C
201514.4 C+0.57 C
201714.7 C+0.94 C
201914.3 C+0.53 C
202514.6 C+0.80 C

The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1967 to 2025. In Fahrenheit: 0.2 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 49 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Castlemaine Prison
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.1 C (0.1 to 0.2) per decade0.2 F (0.1 to 0.4) per decade1967 to 202549Rise
Mean daily maximum0.1 C (-0.1 to 0.2) per decade0.1 F (-0.1 to 0.3) per decade1967 to 202549Not clearly different from zero
Mean daily minimum0.2 C (0.1 to 0.3) per decade0.4 F (0.2 to 0.5) per decade1967 to 202549Rise

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

1966 to 2026
Yearly extremes at Castlemaine Prison: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)43.9 C (111.0 F)200939.4 C (102.9 F)61
Coldest night (TNn)-6.3 C (20.7 F)1982-3.0 C (26.6 F)61
Wettest day (Rx1day)101.0 mm (4.0 in)201140.0 mm (1.6 in)61
Wettest five days (Rx5day)189.0 mm (7.4 in)201161.0 mm (2.4 in)61
Longest dry spell (CDD)51 days199126 days61

Hottest day (TXx)

Hottest day (TXx) at Castlemaine Prison by year The hottest day of the year at Castlemaine Prison, 1966 to 2026. The record is 43.9 C (111.0 F) in 2009, marked on the chart; the median year is 39.4 C (102.9 F). 3537.54042.545197019801990200020102020Record: 43.9 C (111.0 F) in 2009
The hottest day of the year at Castlemaine Prison, 1966 to 2026. The record is 43.9 C (111.0 F) in 2009, marked on the chart; the median year is 39.4 C (102.9 F).
Hottest day (TXx) at Castlemaine Prison by year
YearHottest day (TXx)
196637.7 C (99.9 F)
196740.0 C (104.0 F)
196843.7 C (110.7 F)
196939.3 C (102.7 F)
197038.3 C (100.9 F)
197140.0 C (104.0 F)
197238.7 C (101.7 F)
197340.5 C (104.9 F)
197436.2 C (97.2 F)
197539.6 C (103.3 F)
197640.7 C (105.3 F)
197741.3 C (106.3 F)
197838.0 C (100.4 F)
197941.4 C (106.5 F)
198040.7 C (105.3 F)
198139.9 C (103.8 F)
198240.5 C (104.9 F)
198341.0 C (105.8 F)
198435.0 C (95.0 F)
198540.9 C (105.6 F)
198636.5 C (97.7 F)
198738.0 C (100.4 F)
198837.6 C (99.7 F)
198937.0 C (98.6 F)
199035.8 C (96.4 F)
199138.4 C (101.1 F)
199237.0 C (98.6 F)
199337.6 C (99.7 F)
199438.0 C (100.4 F)
199537.8 C (100.0 F)
199637.5 C (99.5 F)
199739.3 C (102.7 F)
199840.0 C (104.0 F)
199939.4 C (102.9 F)
200038.3 C (100.9 F)
200138.1 C (100.6 F)
200238.7 C (101.7 F)
200342.2 C (108.0 F)
200441.3 C (106.3 F)
200542.0 C (107.6 F)
200639.6 C (103.3 F)
200739.4 C (102.9 F)
200840.1 C (104.2 F)
200943.9 C (111.0 F)
201041.6 C (106.9 F)
201139.0 C (102.2 F)
201238.2 C (100.8 F)
201339.5 C (103.1 F)
201441.8 C (107.2 F)
201540.0 C (104.0 F)
201640.3 C (104.5 F)
201740.1 C (104.2 F)
201842.8 C (109.0 F)
201940.2 C (104.4 F)
202041.5 C (106.7 F)
202137.5 C (99.5 F)
202236.0 C (96.8 F)
202335.0 C (95.0 F)
202438.5 C (101.3 F)
202539.0 C (102.2 F)
202641.0 C (105.8 F)

Coldest night (TNn)

Coldest night (TNn) at Castlemaine Prison by year The coldest night of the year at Castlemaine Prison, 1966 to 2026. The record is -6.3 C (20.7 F) in 1982, marked on the chart; the median year is -3.0 C (26.6 F). -8-6-4-20197019801990200020102020Record: -6.3 C (20.7 F) in 1982
The coldest night of the year at Castlemaine Prison, 1966 to 2026. The record is -6.3 C (20.7 F) in 1982, marked on the chart; the median year is -3.0 C (26.6 F).
Coldest night (TNn) at Castlemaine Prison by year
YearColdest night (TNn)
1966-4.9 C (23.2 F)
1967-3.8 C (25.2 F)
1968-4.0 C (24.8 F)
1969-4.7 C (23.5 F)
1970-3.7 C (25.3 F)
1971-3.9 C (25.0 F)
1972-4.9 C (23.2 F)
1973-4.1 C (24.6 F)
1974-4.1 C (24.6 F)
1975-3.4 C (25.9 F)
1976-5.4 C (22.3 F)
1977-3.6 C (25.5 F)
1978-2.9 C (26.8 F)
1979-2.5 C (27.5 F)
1980-1.9 C (28.6 F)
1981-1.7 C (28.9 F)
1982-6.3 C (20.7 F)
1983-2.5 C (27.5 F)
1984-3.4 C (25.9 F)
1985-4.0 C (24.8 F)
1986-3.7 C (25.3 F)
1987-2.5 C (27.5 F)
1988-1.5 C (29.3 F)
1989-4.0 C (24.8 F)
1990-1.8 C (28.8 F)
1991-2.3 C (27.9 F)
1992-2.6 C (27.3 F)
1993-2.4 C (27.7 F)
1994-4.2 C (24.4 F)
1995-4.0 C (24.8 F)
1996-3.2 C (26.2 F)
1997-4.5 C (23.9 F)
1998-3.5 C (25.7 F)
1999-3.0 C (26.6 F)
2000-2.8 C (27.0 F)
2001-1.3 C (29.7 F)
2002-3.0 C (26.6 F)
2003-2.9 C (26.8 F)
2004-2.3 C (27.9 F)
2005-2.3 C (27.9 F)
2006-3.9 C (25.0 F)
2007-3.3 C (26.1 F)
2008-3.4 C (25.9 F)
2009-2.4 C (27.7 F)
2010-2.9 C (26.8 F)
2011-2.6 C (27.3 F)
2012-2.3 C (27.9 F)
2013-1.5 C (29.3 F)
2014-3.2 C (26.2 F)
2015-4.0 C (24.8 F)
2016-0.5 C (31.1 F)
2017-3.0 C (26.6 F)
2018-3.0 C (26.6 F)
2019-3.0 C (26.6 F)
2020-2.0 C (28.4 F)
2021-2.0 C (28.4 F)
2022-1.0 C (30.2 F)
2023-3.0 C (26.6 F)
2024-4.0 C (24.8 F)
2025-2.5 C (27.5 F)
2026-1.5 C (29.3 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Castlemaine Prison by year The wettest day of the year at Castlemaine Prison, 1966 to 2026. The record is 101.0 mm (4.0 in) in 2011, marked on the chart; the median year is 40.0 mm (1.6 in). 0255075100125197019801990200020102020Record: 101.0 mm (4.0 in) in 2011
The wettest day of the year at Castlemaine Prison, 1966 to 2026. The record is 101.0 mm (4.0 in) in 2011, marked on the chart; the median year is 40.0 mm (1.6 in).
Wettest day (Rx1day) at Castlemaine Prison by year
YearWettest day (Rx1day)
196630.0 mm (1.2 in)
196718.8 mm (0.7 in)
196835.3 mm (1.4 in)
196949.5 mm (1.9 in)
197047.5 mm (1.9 in)
197125.4 mm (1.0 in)
197249.8 mm (2.0 in)
197391.2 mm (3.6 in)
197441.8 mm (1.6 in)
197548.5 mm (1.9 in)
197634.2 mm (1.3 in)
197731.3 mm (1.2 in)
197839.4 mm (1.6 in)
197930.4 mm (1.2 in)
198045.0 mm (1.8 in)
198130.4 mm (1.2 in)
198219.2 mm (0.8 in)
198337.0 mm (1.5 in)
198451.8 mm (2.0 in)
198544.4 mm (1.7 in)
198638.6 mm (1.5 in)
198730.0 mm (1.2 in)
198841.2 mm (1.6 in)
198968.0 mm (2.7 in)
199054.5 mm (2.1 in)
199127.2 mm (1.1 in)
199234.0 mm (1.3 in)
199350.6 mm (2.0 in)
199436.0 mm (1.4 in)
199540.0 mm (1.6 in)
199641.8 mm (1.6 in)
199735.6 mm (1.4 in)
199834.0 mm (1.3 in)
199949.4 mm (1.9 in)
200047.6 mm (1.9 in)
200130.5 mm (1.2 in)
200237.0 mm (1.5 in)
200333.8 mm (1.3 in)
200424.8 mm (1.0 in)
200542.4 mm (1.7 in)
200622.8 mm (0.9 in)
200765.6 mm (2.6 in)
200831.2 mm (1.2 in)
200923.2 mm (0.9 in)
201076.2 mm (3.0 in)
2011101.0 mm (4.0 in)
201297.8 mm (3.9 in)
201346.4 mm (1.8 in)
201432.0 mm (1.3 in)
201523.8 mm (0.9 in)
201653.0 mm (2.1 in)
201754.5 mm (2.1 in)
201826.6 mm (1.0 in)
201935.0 mm (1.4 in)
202050.0 mm (2.0 in)
202141.0 mm (1.6 in)
202248.0 mm (1.9 in)
202349.6 mm (2.0 in)
202463.0 mm (2.5 in)
202534.4 mm (1.4 in)
202642.4 mm (1.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Castlemaine Prison by year The wettest five days of the year at Castlemaine Prison, 1966 to 2026. The record is 189.0 mm (7.4 in) in 2011, marked on the chart; the median year is 61.0 mm (2.4 in). 050100150200197019801990200020102020Record: 189.0 mm (7.4 in) in 2011
The wettest five days of the year at Castlemaine Prison, 1966 to 2026. The record is 189.0 mm (7.4 in) in 2011, marked on the chart; the median year is 61.0 mm (2.4 in).
Wettest five days (Rx5day) at Castlemaine Prison by year
YearWettest five days (Rx5day)
196655.4 mm (2.2 in)
196726.1 mm (1.0 in)
196864.2 mm (2.5 in)
196953.8 mm (2.1 in)
197072.8 mm (2.9 in)
197141.1 mm (1.6 in)
197277.2 mm (3.0 in)
197395.0 mm (3.7 in)
197482.1 mm (3.2 in)
197590.5 mm (3.6 in)
197642.2 mm (1.7 in)
197748.2 mm (1.9 in)
197850.6 mm (2.0 in)
197957.6 mm (2.3 in)
198069.4 mm (2.7 in)
198154.4 mm (2.1 in)
198235.6 mm (1.4 in)
198353.8 mm (2.1 in)
198469.6 mm (2.7 in)
198565.8 mm (2.6 in)
198676.5 mm (3.0 in)
198786.6 mm (3.4 in)
198862.0 mm (2.4 in)
198970.4 mm (2.8 in)
199055.5 mm (2.2 in)
199146.6 mm (1.8 in)
199256.0 mm (2.2 in)
199375.6 mm (3.0 in)
199442.1 mm (1.7 in)
1995107.4 mm (4.2 in)
199667.4 mm (2.7 in)
199752.1 mm (2.1 in)
199851.8 mm (2.0 in)
199984.5 mm (3.3 in)
200076.8 mm (3.0 in)
200154.3 mm (2.1 in)
200240.2 mm (1.6 in)
200345.6 mm (1.8 in)
200449.0 mm (1.9 in)
200566.8 mm (2.6 in)
200644.6 mm (1.8 in)
200777.8 mm (3.1 in)
200840.2 mm (1.6 in)
200948.8 mm (1.9 in)
2010142.0 mm (5.6 in)
2011189.0 mm (7.4 in)
2012177.8 mm (7.0 in)
201358.6 mm (2.3 in)
201438.4 mm (1.5 in)
201543.0 mm (1.7 in)
201685.8 mm (3.4 in)
201768.6 mm (2.7 in)
201838.0 mm (1.5 in)
201945.8 mm (1.8 in)
202061.0 mm (2.4 in)
202183.5 mm (3.3 in)
2022102.4 mm (4.0 in)
202365.9 mm (2.6 in)
202465.2 mm (2.6 in)
202553.3 mm (2.1 in)
202690.8 mm (3.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Castlemaine Prison by year The longest dry spell of the year at Castlemaine Prison, 1966 to 2026. The record is 51 days in 1991, marked on the chart; the median year is 26 days. 102030405060197019801990200020102020Record: 51 days in 1991
The longest dry spell of the year at Castlemaine Prison, 1966 to 2026. The record is 51 days in 1991, marked on the chart; the median year is 26 days.
Longest dry spell (CDD) at Castlemaine Prison by year
YearLongest dry spell (CDD)
196620 days
196727 days
196831 days
196917 days
197023 days
197116 days
197237 days
197316 days
197423 days
197528 days
197640 days
197725 days
197817 days
197920 days
198034 days
198131 days
198240 days
198326 days
198419 days
198527 days
198635 days
198725 days
198826 days
198923 days
199032 days
199151 days
199227 days
199317 days
199431 days
199521 days
199618 days
199721 days
199824 days
199923 days
200022 days
200131 days
200226 days
200328 days
200423 days
200527 days
200643 days
200726 days
200826 days
200950 days
201030 days
201120 days
201228 days
201331 days
201423 days
201525 days
201630 days
201716 days
201841 days
201939 days
202023 days
202123 days
202229 days
202320 days
202428 days
202533 days
202621 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.

Frost Dates and Growing Season

49 years with a frost

Across 49 years with a frost, the median last spring frost at Castlemaine Prison falls on 3 October and the median first autumn frost on 13 May, which leaves a median of 221 days between them.

Fitted over all years, the growing season changes by +2.6 days per decade at this station.

Frost dates and growing season at Castlemaine Prison
MeasureMedian, all yearsEarliest periodRecent period (1986 to 2025)Recent against earliestFitted trend
Last spring frost3 Octobern/a5 Octobern/a-1.3 days per decade
First autumn frost13 Mayn/a18 Mayn/a+1.2 days per decade
Growing days221 daysn/a223 daysn/a+2.6 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

58 years, 1967 to 2025

A day with at least 39.1 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 106.0 mm (4.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Castlemaine Prison: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years39.1 mm (1.5 in)
5 years53.8 mm (2.1 in)
10 years64.6 mm (2.5 in)
25 years79.9 mm (3.1 in)
50 years92.5 mm (3.6 in)
100 years106.0 mm (4.2 in)Longer than the 58 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, 58 years of values from 1967 to 2025.

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: 101.0 mm (4.0 in) in 2011; 97.8 mm (3.9 in) in 2012; 91.2 mm (3.6 in) in 1973.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Climate Twins

2004 to 2025 against 1961 to 1990

Over 2004 to 2025, Castlemaine Prison had a mean temperature of 14.2 C (57.5 F) and 569.0 mm (22.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Stawell (Australia, 128 km away), Tatura Inst Sustainable Ag (Australia, 116 km away) and St Arnaud (Australia, 101 km away).

Climate twins of Castlemaine Prison: stations whose 1961 to 1990 climate is closest to its 2004 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
StawellAustralia128 km (80 mi)14.2 C (57.5 F)577.1 mm (22.7 in)0.66
Tatura Inst Sustainable AgAustralia116 km (72 mi)14.8 C (58.6 F)480.4 mm (18.9 in)0.77
St ArnaudAustralia101 km (63 mi)14.7 C (58.5 F)455.8 mm (17.9 in)0.77

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

  • Data for Castlemaine Prison standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Castlemaine Prison 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 . Last revised (2026-10-13).