Built 2026-10-15 (15 October 2026)

Port Augusta Power Station Weather Records (ASN00019066)

Record envelope, standing records and threshold days for Port Augusta Power Station (ASN00019066), Australia, with 40 years of record.

Key Facts for Port Augusta Power Station

  • Port Augusta Power Station (ASN00019066) is a weather station in Australia at -32.53 latitude and 137.79 longitude, 7 m (23 ft) above sea level.
  • The station reports from 1958 to 1997, 40 years of record.
  • 1,464 records set at Port Augusta Power Station still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Port Augusta Power Station set a daily record high maximum temperature of 22.7 C (72.9 F) on 4 June 1997.

About the Station

  • Location: Australia, -32.53 latitude, 137.79 longitude.
  • Elevation: 7 m (23 ft).
  • Period of record: 1958 to 1997, 40 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Port Augusta Power Station, with 2026 drawn through them The band shows the record high and record low for each calendar day at Port Augusta Power Station. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -1001020304050 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Port Augusta Power Station. 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 Port Augusta Power Station, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan46.4 C (115.5 F)9.7 C (49.5 F)n/an/a
Feb45.6 C (114.1 F)9.4 C (48.9 F)n/an/a
Mar44.0 C (111.2 F)9.6 C (49.3 F)n/an/a
Apr38.4 C (101.1 F)6.4 C (43.5 F)n/an/a
May30.6 C (87.1 F)3.3 C (37.9 F)n/an/a
Jun26.0 C (78.8 F)1.7 C (35.1 F)n/an/a
Jul28.0 C (82.4 F)-0.6 C (30.9 F)n/an/a
Aug31.2 C (88.2 F)1.4 C (34.5 F)n/an/a
Sep36.3 C (97.3 F)3.0 C (37.4 F)n/an/a
Oct40.3 C (104.5 F)5.0 C (41.0 F)n/an/a
Nov44.4 C (111.9 F)5.8 C (42.4 F)n/an/a
Dec45.1 C (113.2 F)8.1 C (46.6 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Port Augusta Power Station by the year they were set 1,464 records at Port Augusta Power Station still stand. 1964 holds the most, with 72. 0204060801962: 311963: 591964: 721965: 621966: 421967: 461968: 561969: 321970: 531971: 401972: 311973: 521974: 331975: 491976: 371977: 321978: 541979: 301980: 431981: 401982: 491983: 401984: 441985: 281986: 411987: 401988: 351989: 381990: 451991: 371992: 381993: 281994: 351995: 331996: 261997: 13196219661970197419781982198619901994
1,464 records at Port Augusta Power Station still stand. 1964 holds the most, with 72.
Standing records at Port Augusta Power Station by the year they were set
Year setStanding records
196231
196359
196472
196562
196642
196746
196856
196932
197053
197140
197231
197352
197433
197549
197637
197732
197854
197930
198043
198140
198249
198340
198444
198528
198641
198740
198835
198938
199045
199137
199238
199328
199435
199533
199626
199713

All-Time Record Progression

2 new records
When Port Augusta Power Station set new all-time records 2 all-time records were set at Port Augusta Power Station between 14 March 1989 and 1 March 1992. Each dot is a new record. Record daily precipitation14 March 1989: Record daily precipitation 50.4 mm (2.0 in)1 March 1992: Record daily precipitation 90.8 mm (3.6 in)1990
2 all-time records were set at Port Augusta Power Station between 14 March 1989 and 1 March 1992. Each dot is a new record.
When Port Augusta Power Station set new all-time records
DateKindDetail
1989-03-14Record daily precipitationRecord daily precipitation 50.4 mm (2.0 in)
1992-03-01Record daily precipitationRecord daily precipitation 90.8 mm (3.6 in)

Wettest Day of Each Month

Mar: 90.8 mm (3.6 in)
Record daily precipitation for each month at Port Augusta Power Station The wettest day on record for each calendar month at Port Augusta Power Station. The most was 90.8 mm (3.6 in) on 1 March 1992. 0255075100 Jan: 46.8 mm (1.8 in), 1 January 1996 Jan Feb: 44.0 mm (1.7 in), 1 February 1974 Feb Mar: 90.8 mm (3.6 in), 1 March 1992 Mar Apr: 30.0 mm (1.2 in), 29 April 1968 Apr May: 44.4 mm (1.7 in), 13 May 1974 May Jun: 35.0 mm (1.4 in), 6 June 1994 Jun Jul: 27.4 mm (1.1 in), 1 July 1986 Jul Aug: 32.8 mm (1.3 in), 27 August 1973 Aug Sep: 31.2 mm (1.2 in), 22 September 1970 Sep Oct: 46.2 mm (1.8 in), 13 October 1976 Oct Nov: 33.0 mm (1.3 in), 28 November 1977 Nov Dec: 48.0 mm (1.9 in), 1 December 1966 Dec
The wettest day on record for each calendar month at Port Augusta Power Station. The most was 90.8 mm (3.6 in) on 1 March 1992.
Record daily precipitation for each month at Port Augusta Power Station
MonthRecord daily precipitation (mm)Date
Jan46.8 mm (1.8 in)1 January 1996
Feb44.0 mm (1.7 in)1 February 1974
Mar90.8 mm (3.6 in)1 March 1992
Apr30.0 mm (1.2 in)29 April 1968
May44.4 mm (1.7 in)13 May 1974
Jun35.0 mm (1.4 in)6 June 1994
Jul27.4 mm (1.1 in)1 July 1986
Aug32.8 mm (1.3 in)27 August 1973
Sep31.2 mm (1.2 in)22 September 1970
Oct46.2 mm (1.8 in)13 October 1976
Nov33.0 mm (1.3 in)28 November 1977
Dec48.0 mm (1.9 in)1 December 1966

Period of Record Coverage

1962 to 1997
Days with data per year at Port Augusta Power Station 36 years of record at Port Augusta Power Station, 1962 to 1997. 5 years have data for under 90 percent of days and are left out of rankings: 1962, 1994, 1995, 1996, 1997. 1962: 184 of 365 days1963: 353 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 363 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 364 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 359 of 366 days1977: 356 of 365 days1978: 359 of 365 days1979: 364 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 359 of 365 days1984: 366 of 366 days1985: 358 of 365 days1986: 365 of 365 days1987: 363 of 365 days1988: 364 of 366 days1989: 363 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 365 of 365 days1994: 302 of 365 days1995: 211 of 365 days1996: 199 of 366 days1997: 89 of 365 days1965197019751980198519901995
36 years of record at Port Augusta Power Station, 1962 to 1997. 5 years have data for under 90 percent of days and are left out of rankings: 1962, 1994, 1995, 1996, 1997.
Days with data per year at Port Augusta Power Station
YearDays with dataShare of yearComplete
196218450%No
196335397%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
196936399%Yes
1970365100%Yes
1971365100%Yes
197236499%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
197635998%Yes
197735698%Yes
197835998%Yes
1979364100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
198335998%Yes
1984366100%Yes
198535898%Yes
1986365100%Yes
198736399%Yes
198836499%Yes
198936399%Yes
1990365100%Yes
1991365100%Yes
1992366100%Yes
1993365100%Yes
199430283%No
199521158%No
199619954%No
19978924%No

Latest Records

20
Latest records at Port Augusta Power Station
DateStationRecordValueBeat old record byOld record stoodSignificance
4 June 1997Port Augusta Power Station, AUdaily high max22.7 C (72.9 F)0.5 C (0.9 F)18 years9 of 100 (Routine)
23 May 1997Port Augusta Power Station, AUdaily high min14.0 C (57.2 F)0.1 C (0.2 F)24 years10 of 100 (Routine)
2 May 1997Port Augusta Power Station, AUdaily high min18.8 C (65.8 F)0.5 C (0.9 F)18 years9 of 100 (Routine)
1 May 1997Port Augusta Power Station, AUdaily high min19.4 C (66.9 F)2.2 C (4.0 F)12 years13 of 100 (Routine)
1 May 1997Port Augusta Power Station, AUdaily high max29.8 C (85.6 F)0.6 C (1.1 F)7 years6 of 100 (Routine)
30 April 1997Port Augusta Power Station, AUdaily high max29.6 C (85.3 F)0.7 C (1.3 F)24 years11 of 100 (Routine)
30 April 1997Port Augusta Power Station, AUdaily high min17.6 C (63.7 F)1.2 C (2.2 F)4 years7 of 100 (Routine)
29 April 1997Port Augusta Power Station, AUdaily high max31.4 C (88.5 F)0.4 C (0.7 F)28 years11 of 100 (Routine)
28 April 1997Port Augusta Power Station, AUdaily high max30.9 C (87.6 F)1.1 C (2.0 F)28 years13 of 100 (Routine)
22 April 1997Port Augusta Power Station, AUdaily high max31.1 C (88.0 F)0.6 C (1.1 F)16 years8 of 100 (Routine)
28 March 1997Port Augusta Power Station, AUdaily low min (Tie)11.5 C (52.7 F)tie12 years1 of 100 (Routine)
19 February 1997Port Augusta Power Station, AUdaily high min27.4 C (81.3 F)0.9 C (1.6 F)26 years12 of 100 (Routine)
10 February 1997Port Augusta Power Station, AUdaily rain17.4 mm (0.7 in)15.4 mm (0.6 in)7 years20 of 100 (Routine)
7 February 1997Port Augusta Power Station, AUdaily rain23.8 mm (0.9 in)15.4 mm (0.6 in)21 years20 of 100 (Routine)
6 February 1997Port Augusta Power Station, AUdaily rain29.8 mm (1.2 in)8.0 mm (0.31 in)24 years19 of 100 (Routine)
5 February 1997Port Augusta Power Station, AUdaily high min29.4 C (84.9 F)2.9 C (5.2 F)20 years17 of 100 (Routine)
22 January 1997Port Augusta Power Station, AUdaily rain30.4 mm (1.2 in)27.2 mm (1.1 in)6 years35 of 100 (Notable)
21 January 1997Port Augusta Power Station, AUdaily high min29.6 C (85.3 F)1.6 C (2.9 F)15 years11 of 100 (Routine)
24 December 1996Port Augusta Power Station, AUdaily low min10.6 C (51.1 F)1.7 C (3.1 F)27 years15 of 100 (Routine)
13 December 1996Port Augusta Power Station, AUdaily high min26.7 C (80.1 F)3.5 C (6.3 F)28 years20 of 100 (Routine)

Climate Trend

31 complete years, 1963 to 1993
Annual mean temperature at Port Augusta Power Station as warming stripes, 1963 to 1993 One stripe for each of 31 complete years at Port Augusta Power Station, 1963 to 1993. Blue stripes are years cooler than the station's own mean of 19.1 C (66.5 F); red stripes are warmer. The coolest year was 1964, at 18.3 C (65.0 F), and the warmest was 1991, at 19.8 C (67.7 F). The strongest colour marks a difference of 0.9 C (1.6 F). 1963: 18.8 C, -0.3 C from the station mean1964: 18.3 C, -0.8 C from the station mean1965: 19.3 C, +0.2 C from the station mean1966: 18.6 C, -0.5 C from the station mean1967: 19.2 C, +0.1 C from the station mean1968: 19.0 C, -0.1 C from the station mean1969: 18.7 C, -0.5 C from the station mean1970: 18.6 C, -0.6 C from the station mean1971: 19.1 C, -0.1 C from the station mean1972: 19.3 C, +0.1 C from the station mean1973: 19.7 C, +0.5 C from the station mean1974: 18.9 C, -0.2 C from the station mean1975: 19.3 C, +0.2 C from the station mean1976: 18.7 C, -0.4 C from the station mean1977: 19.7 C, +0.5 C from the station mean1978: 18.6 C, -0.6 C from the station mean1979: 19.4 C, +0.2 C from the station mean1980: 19.8 C, +0.6 C from the station mean1981: 19.7 C, +0.5 C from the station mean1982: 19.8 C, +0.6 C from the station mean1983: 19.5 C, +0.4 C from the station mean1984: 18.7 C, -0.4 C from the station mean1985: 19.1 C, -0.1 C from the station mean1986: 18.7 C, -0.4 C from the station mean1987: 19.1 C, -0.1 C from the station mean1988: 19.7 C, +0.5 C from the station mean1989: 19.0 C, -0.2 C from the station mean1990: 19.7 C, +0.6 C from the station mean1991: 19.8 C, +0.7 C from the station mean1992: 18.4 C, -0.7 C from the station mean1993: 19.6 C, +0.4 C from the station mean1963196519701975198019851990
One stripe for each of 31 complete years at Port Augusta Power Station, 1963 to 1993. Blue stripes are years cooler than the station's own mean of 19.1 C (66.5 F); red stripes are warmer. The coolest year was 1964, at 18.3 C (65.0 F), and the warmest was 1991, at 19.8 C (67.7 F). The strongest colour marks a difference of 0.9 C (1.6 F).
Annual mean temperature at Port Augusta Power Station as warming stripes, 1963 to 1993
YearAnnual mean temperatureDifference from the station mean
196318.8 C-0.32 C
196418.3 C-0.82 C
196519.3 C+0.17 C
196618.6 C-0.55 C
196719.2 C+0.09 C
196819.0 C-0.12 C
196918.7 C-0.49 C
197018.6 C-0.58 C
197119.1 C-0.09 C
197219.3 C+0.14 C
197319.7 C+0.51 C
197418.9 C-0.21 C
197519.3 C+0.18 C
197618.7 C-0.42 C
197719.7 C+0.50 C
197818.6 C-0.59 C
197919.4 C+0.24 C
198019.8 C+0.60 C
198119.7 C+0.52 C
198219.8 C+0.60 C
198319.5 C+0.38 C
198418.7 C-0.45 C
198519.1 C-0.08 C
198618.7 C-0.41 C
198719.1 C-0.10 C
198819.7 C+0.54 C
198919.0 C-0.20 C
199019.7 C+0.55 C
199119.8 C+0.67 C
199218.4 C-0.73 C
199319.6 C+0.43 C

The fitted trend in annual mean temperature here over 1963 to 1993 is 0.17 C (-0.01 to 0.35) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.31 F (-0.01 to 0.63) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Port Augusta Power Station
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.17 C (-0.01 to 0.35) per decade0.31 F (-0.01 to 0.63) per decade1963 to 199331Not clearly different from zero
Mean daily maximum0.2 C (-0.1 to 0.4) per decade0.3 F (-0.1 to 0.7) per decade1963 to 199331Not clearly different from zero
Mean daily minimum0.19 C (0.03 to 0.35) per decade0.3 F (0.1 to 0.6) per decade1963 to 199331Rise

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

1958 to 1997
Yearly extremes at Port Augusta Power Station: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)46.4 C (115.5 F)196843.7 C (110.7 F)36
Coldest night (TNn)-0.6 C (30.9 F)19672.7 C (36.8 F)36
Wettest day (Rx1day)90.8 mm (3.6 in)199227.6 mm (1.1 in)40
Wettest five days (Rx5day)143.4 mm (5.6 in)197441.3 mm (1.6 in)40
Longest dry spell (CDD)99 days199750 days40

Hottest day (TXx)

Hottest day (TXx) at Port Augusta Power Station by year The hottest day of the year at Port Augusta Power Station, 1958 to 1997. The record is 46.4 C (115.5 F) in 1968, marked on the chart; the median year is 43.7 C (110.7 F). 40424446481960197019801990Record: 46.4 C (115.5 F) in 1968
The hottest day of the year at Port Augusta Power Station, 1958 to 1997. The record is 46.4 C (115.5 F) in 1968, marked on the chart; the median year is 43.7 C (110.7 F).
Hottest day (TXx) at Port Augusta Power Station by year
YearHottest day (TXx)
1958n/a
1959n/a
1960n/a
1961n/a
196244.4 C (111.9 F)
196345.6 C (114.1 F)
196445.1 C (113.2 F)
196542.9 C (109.2 F)
196643.2 C (109.8 F)
196743.0 C (109.4 F)
196846.4 C (115.5 F)
196944.4 C (111.9 F)
197044.3 C (111.7 F)
197143.3 C (109.9 F)
197245.1 C (113.2 F)
197344.6 C (112.3 F)
197440.7 C (105.3 F)
197542.9 C (109.2 F)
197643.5 C (110.3 F)
197742.6 C (108.7 F)
197841.2 C (106.2 F)
197946.1 C (115.0 F)
198043.9 C (111.0 F)
198145.5 C (113.9 F)
198245.7 C (114.3 F)
198345.2 C (113.4 F)
198441.2 C (106.2 F)
198543.3 C (109.9 F)
198644.1 C (111.4 F)
198742.7 C (108.9 F)
198844.2 C (111.6 F)
198942.5 C (108.5 F)
199046.0 C (114.8 F)
199145.8 C (114.4 F)
199242.3 C (108.1 F)
199343.3 C (109.9 F)
199444.0 C (111.2 F)
199540.8 C (105.4 F)
199642.6 C (108.7 F)
199742.0 C (107.6 F)

Coldest night (TNn)

Coldest night (TNn) at Port Augusta Power Station by year The coldest night of the year at Port Augusta Power Station, 1958 to 1997. The record is -0.6 C (30.9 F) in 1967, marked on the chart; the median year is 2.7 C (36.8 F). -202461960197019801990Record: -0.6 C (30.9 F) in 1967
The coldest night of the year at Port Augusta Power Station, 1958 to 1997. The record is -0.6 C (30.9 F) in 1967, marked on the chart; the median year is 2.7 C (36.8 F).
Coldest night (TNn) at Port Augusta Power Station by year
YearColdest night (TNn)
1958n/a
1959n/a
1960n/a
1961n/a
19623.0 C (37.4 F)
19631.4 C (34.5 F)
19641.8 C (35.2 F)
19652.3 C (36.1 F)
19662.1 C (35.8 F)
1967-0.6 C (30.9 F)
19681.6 C (34.9 F)
19693.0 C (37.4 F)
19702.0 C (35.6 F)
19712.2 C (36.0 F)
19722.2 C (36.0 F)
19732.8 C (37.0 F)
19743.7 C (38.7 F)
19753.0 C (37.4 F)
19760.3 C (32.5 F)
19772.8 C (37.0 F)
19782.2 C (36.0 F)
19793.4 C (38.1 F)
19803.6 C (38.5 F)
19813.6 C (38.5 F)
19822.2 C (36.0 F)
19832.8 C (37.0 F)
19843.0 C (37.4 F)
19851.6 C (34.9 F)
19862.0 C (35.6 F)
19873.3 C (37.9 F)
19883.8 C (38.8 F)
19891.4 C (34.5 F)
19903.0 C (37.4 F)
19914.1 C (39.4 F)
19922.5 C (36.5 F)
19933.8 C (38.8 F)
19941.8 C (35.2 F)
19951.0 C (33.8 F)
19964.6 C (40.3 F)
19975.8 C (42.4 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Port Augusta Power Station by year The wettest day of the year at Port Augusta Power Station, 1958 to 1997. The record is 90.8 mm (3.6 in) in 1992, marked on the chart; the median year is 27.6 mm (1.1 in). 0204060801001960197019801990Record: 90.8 mm (3.6 in) in 1992
The wettest day of the year at Port Augusta Power Station, 1958 to 1997. The record is 90.8 mm (3.6 in) in 1992, marked on the chart; the median year is 27.6 mm (1.1 in).
Wettest day (Rx1day) at Port Augusta Power Station by year
YearWettest day (Rx1day)
195830.2 mm (1.2 in)
195916.8 mm (0.7 in)
196015.0 mm (0.6 in)
196122.4 mm (0.9 in)
196227.7 mm (1.1 in)
196324.9 mm (1.0 in)
196423.4 mm (0.9 in)
196521.6 mm (0.9 in)
196648.0 mm (1.9 in)
196733.5 mm (1.3 in)
196830.0 mm (1.2 in)
196939.1 mm (1.5 in)
197031.2 mm (1.2 in)
197121.1 mm (0.8 in)
197216.8 mm (0.7 in)
197335.8 mm (1.4 in)
197444.4 mm (1.7 in)
197521.4 mm (0.8 in)
197646.2 mm (1.8 in)
197733.0 mm (1.3 in)
197823.2 mm (0.9 in)
197930.6 mm (1.2 in)
198024.6 mm (1.0 in)
198118.8 mm (0.7 in)
198219.0 mm (0.7 in)
198322.6 mm (0.9 in)
198417.2 mm (0.7 in)
198525.7 mm (1.0 in)
198627.4 mm (1.1 in)
198736.4 mm (1.4 in)
198820.4 mm (0.8 in)
198950.4 mm (2.0 in)
199027.4 mm (1.1 in)
199140.2 mm (1.6 in)
199290.8 mm (3.6 in)
199333.2 mm (1.3 in)
199435.0 mm (1.4 in)
199522.0 mm (0.9 in)
199646.8 mm (1.8 in)
199730.4 mm (1.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Port Augusta Power Station by year The wettest five days of the year at Port Augusta Power Station, 1958 to 1997. The record is 143.4 mm (5.6 in) in 1974, marked on the chart; the median year is 41.3 mm (1.6 in). 0501001501960197019801990Record: 143.4 mm (5.6 in) in 1974
The wettest five days of the year at Port Augusta Power Station, 1958 to 1997. The record is 143.4 mm (5.6 in) in 1974, marked on the chart; the median year is 41.3 mm (1.6 in).
Wettest five days (Rx5day) at Port Augusta Power Station by year
YearWettest five days (Rx5day)
195838.4 mm (1.5 in)
195922.6 mm (0.9 in)
196017.0 mm (0.7 in)
196125.4 mm (1.0 in)
196230.7 mm (1.2 in)
196344.5 mm (1.8 in)
196447.5 mm (1.9 in)
196521.6 mm (0.9 in)
196661.4 mm (2.4 in)
196748.5 mm (1.9 in)
196849.1 mm (1.9 in)
196939.1 mm (1.5 in)
197049.0 mm (1.9 in)
197134.2 mm (1.3 in)
197227.6 mm (1.1 in)
197392.2 mm (3.6 in)
1974143.4 mm (5.6 in)
197527.0 mm (1.1 in)
197651.8 mm (2.0 in)
197756.8 mm (2.2 in)
197837.0 mm (1.5 in)
197956.8 mm (2.2 in)
198025.0 mm (1.0 in)
198124.5 mm (1.0 in)
198219.8 mm (0.8 in)
198328.6 mm (1.1 in)
198417.8 mm (0.7 in)
198534.1 mm (1.3 in)
198647.2 mm (1.9 in)
198760.4 mm (2.4 in)
198830.0 mm (1.2 in)
198975.1 mm (3.0 in)
199031.8 mm (1.3 in)
199143.4 mm (1.7 in)
1992103.0 mm (4.1 in)
199369.2 mm (2.7 in)
199445.4 mm (1.8 in)
199529.4 mm (1.2 in)
199646.8 mm (1.8 in)
199771.0 mm (2.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Port Augusta Power Station by year The longest dry spell of the year at Port Augusta Power Station, 1958 to 1997. The record is 99 days in 1997, marked on the chart; the median year is 50 days. 02550751001960197019801990Record: 99 days in 1997
The longest dry spell of the year at Port Augusta Power Station, 1958 to 1997. The record is 99 days in 1997, marked on the chart; the median year is 50 days.
Longest dry spell (CDD) at Port Augusta Power Station by year
YearLongest dry spell (CDD)
195850 days
195918 days
196040 days
196138 days
196269 days
196351 days
196484 days
196572 days
196641 days
196739 days
196830 days
196935 days
197055 days
197149 days
197247 days
197350 days
197440 days
197546 days
197655 days
197783 days
197865 days
197929 days
198065 days
198151 days
198276 days
198342 days
198457 days
198538 days
198658 days
198749 days
198840 days
198963 days
199026 days
199161 days
199232 days
199339 days
199471 days
199528 days
199677 days
199799 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

35 years, 1961 to 1996

A day with at least 27.9 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 86.6 mm (3.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Port Augusta Power Station: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years27.9 mm (1.1 in)
5 years38.8 mm (1.5 in)
10 years47.6 mm (1.9 in)
25 years61.0 mm (2.4 in)
50 years72.9 mm (2.9 in)Longer than the 35 years of record
100 years86.6 mm (3.4 in)Longer than the 35 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, 35 years of values from 1961 to 1996.

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: 90.8 mm (3.6 in) in 1992; 50.4 mm (2.0 in) in 1989; 48.0 mm (1.9 in) in 1966.

Download the Data

  • Data for Port Augusta Power Station standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Port Augusta Power Station 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 (2026-10-14).