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Built 2026-10-15 (15 October 2026)

Port Augusta (Nacoona) Weather Records (ASN00019028)

Record envelope, standing records and threshold days for Port Augusta (Nacoona) (ASN00019028), Australia, with 35 years of record.

Key Facts for Port Augusta (Nacoona)

  • Port Augusta (Nacoona) (ASN00019028) is a weather station in Australia at -32.24 latitude and 137.84 longitude, 52 m (171 ft) above sea level.
  • The station reports from 1940 to 1974, 35 years of record.
  • 0 records set at Port Augusta (Nacoona) still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Port Augusta (Nacoona) set a daily record precipitation of 2.6 mm (0.10 in) on 20 March 1974.

About the Station

  • Location: Australia, -32.24 latitude, 137.84 longitude.
  • Elevation: 52 m (171 ft).
  • Period of record: 1940 to 1974, 35 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Port Augusta (Nacoona), with 2026 drawn through them The band shows the record high and record low for each calendar day at Port Augusta (Nacoona). 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 Port Augusta (Nacoona). 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 (Nacoona), with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
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Decn/an/an/an/a

Which Years Hold Standing Records

0 standing records
Standing records at Port Augusta (Nacoona) by the year they were set 0 records at Port Augusta (Nacoona) still stand. 00000000000
0 records at Port Augusta (Nacoona) still stand.
Standing records at Port Augusta (Nacoona) by the year they were set
Year setStanding records

Wettest Day of Each Month

Feb: 73.7 mm (2.9 in)
Record daily precipitation for each month at Port Augusta (Nacoona) The wettest day on record for each calendar month at Port Augusta (Nacoona). The most was 73.7 mm (2.9 in) on 18 February 1946. 020406080 Jan: 53.0 mm (2.1 in), 31 January 1974 Jan Feb: 73.7 mm (2.9 in), 18 February 1946 Feb Mar: 33.8 mm (1.3 in), 2 March 1941 Mar Apr: 41.4 mm (1.6 in), 14 April 1954 Apr May: 39.6 mm (1.6 in), 10 May 1956 May Jun: 46.2 mm (1.8 in), 12 June 1951 Jun Jul: 20.6 mm (0.8 in), 24 July 1949 Jul Aug: 29.2 mm (1.1 in), 27 August 1973 Aug Sep: 29.5 mm (1.2 in), 2 September 1947 Sep Oct: 64.5 mm (2.5 in), 9 October 1949 Oct Nov: 21.1 mm (0.8 in), 8 November 1966 Nov Dec: 51.8 mm (2.0 in), 1 December 1966 Dec
The wettest day on record for each calendar month at Port Augusta (Nacoona). The most was 73.7 mm (2.9 in) on 18 February 1946.
Record daily precipitation for each month at Port Augusta (Nacoona)
MonthRecord daily precipitation (mm)Date
Jan53.0 mm (2.1 in)31 January 1974
Feb73.7 mm (2.9 in)18 February 1946
Mar33.8 mm (1.3 in)2 March 1941
Apr41.4 mm (1.6 in)14 April 1954
May39.6 mm (1.6 in)10 May 1956
Jun46.2 mm (1.8 in)12 June 1951
Jul20.6 mm (0.8 in)24 July 1949
Aug29.2 mm (1.1 in)27 August 1973
Sep29.5 mm (1.2 in)2 September 1947
Oct64.5 mm (2.5 in)9 October 1949
Nov21.1 mm (0.8 in)8 November 1966
Dec51.8 mm (2.0 in)1 December 1966

Latest Records

20
Latest records at Port Augusta (Nacoona)
DateStationRecordValueBeat old record byOld record stoodSignificance
20 March 1974Port Augusta (Nacoona), AUdaily rain2.6 mm (0.10 in)2.6 mm (0.10 in)33 years16 of 100 (Routine)
1 February 1974Port Augusta (Nacoona), AUdaily rain33.4 mm (1.3 in)31.4 mm (1.2 in)28 years32 of 100 (Routine)
31 January 1974Port Augusta (Nacoona), AUmonthly rain53.0 mm (2.1 in)9.8 mm (0.39 in)33 years32 of 100 (Routine)
30 January 1974Port Augusta (Nacoona), AUdaily rain19.0 mm (0.7 in)13.9 mm (0.5 in)2 years17 of 100 (Routine)
30 December 1973Port Augusta (Nacoona), AUdaily rain31.0 mm (1.2 in)29.0 mm (1.1 in)28 years37 of 100 (Notable)
29 November 1973Port Augusta (Nacoona), AUdaily rain3.6 mm (0.14 in)1.1 mm (0.04 in)27 years13 of 100 (Routine)
3 November 1973Port Augusta (Nacoona), AUdaily rain8.9 mm (0.35 in)3.6 mm (0.14 in)30 years19 of 100 (Routine)
18 October 1973Port Augusta (Nacoona), AUdaily rain26.7 mm (1.1 in)23.4 mm (0.9 in)16 years36 of 100 (Notable)
1 September 1973Port Augusta (Nacoona), AUdaily rain12.2 mm (0.5 in)3.1 mm (0.12 in)16 years13 of 100 (Routine)
27 August 1973Port Augusta (Nacoona), AUmonthly rain29.2 mm (1.1 in)1.0 mm (0.04 in)1 year15 of 100 (Routine)
26 August 1973Port Augusta (Nacoona), AUdaily rain13.5 mm (0.5 in)9.7 mm (0.38 in)30 years20 of 100 (Routine)
7 August 1973Port Augusta (Nacoona), AUdaily rain9.4 mm (0.37 in)2.0 mm (0.08 in)31 years16 of 100 (Routine)
5 August 1973Port Augusta (Nacoona), AUdaily rain9.4 mm (0.37 in)7.9 mm (0.31 in)28 years20 of 100 (Routine)
16 July 1973Port Augusta (Nacoona), AUdaily rain15.7 mm (0.6 in)4.5 mm (0.18 in)2 years14 of 100 (Routine)
14 July 1973Port Augusta (Nacoona), AUdaily rain5.8 mm (0.23 in)2.0 mm (0.08 in)16 years12 of 100 (Routine)
21 June 1973Port Augusta (Nacoona), AUdaily rain8.1 mm (0.32 in)3.8 mm (0.15 in)18 years13 of 100 (Routine)
14 June 1973Port Augusta (Nacoona), AUdaily rain11.2 mm (0.4 in)6.6 mm (0.26 in)20 years18 of 100 (Routine)
2 May 1973Port Augusta (Nacoona), AUdaily rain23.4 mm (0.9 in)16.8 mm (0.7 in)28 years20 of 100 (Routine)
15 April 1973Port Augusta (Nacoona), AUdaily rain6.4 mm (0.25 in)6.1 mm (0.24 in)19 years17 of 100 (Routine)
6 February 1973Port Augusta (Nacoona), AUdaily rain34.8 mm (1.4 in)26.2 mm (1.0 in)17 years27 of 100 (Routine)

Extremes by Year

1940 to 1974
Yearly extremes at Port Augusta (Nacoona): the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)73.7 mm (2.9 in)194629.5 mm (1.2 in)35
Wettest five days (Rx5day)124.2 mm (4.9 in)197445.0 mm (1.8 in)35
Longest dry spell (CDD)85 days196452 days35

Wettest day (Rx1day)

Wettest day (Rx1day) at Port Augusta (Nacoona) by year The wettest day of the year at Port Augusta (Nacoona), 1940 to 1974. The record is 73.7 mm (2.9 in) in 1946, marked on the chart; the median year is 29.5 mm (1.2 in). 0204060801940195019601970Record: 73.7 mm (2.9 in) in 1946
The wettest day of the year at Port Augusta (Nacoona), 1940 to 1974. The record is 73.7 mm (2.9 in) in 1946, marked on the chart; the median year is 29.5 mm (1.2 in).
Wettest day (Rx1day) at Port Augusta (Nacoona) by year
YearWettest day (Rx1day)
194014.0 mm (0.6 in)
194143.2 mm (1.7 in)
194234.0 mm (1.3 in)
194335.6 mm (1.4 in)
194420.6 mm (0.8 in)
194536.3 mm (1.4 in)
194673.7 mm (2.9 in)
194729.5 mm (1.2 in)
194820.3 mm (0.8 in)
194964.5 mm (2.5 in)
195027.9 mm (1.1 in)
195146.2 mm (1.8 in)
195223.1 mm (0.9 in)
195317.8 mm (0.7 in)
195441.4 mm (1.6 in)
195523.1 mm (0.9 in)
195639.6 mm (1.6 in)
195725.4 mm (1.0 in)
195830.5 mm (1.2 in)
195933.8 mm (1.3 in)
196028.4 mm (1.1 in)
196116.5 mm (0.6 in)
196228.2 mm (1.1 in)
196328.2 mm (1.1 in)
196428.4 mm (1.1 in)
196518.8 mm (0.7 in)
196651.8 mm (2.0 in)
196725.7 mm (1.0 in)
196821.6 mm (0.9 in)
196930.2 mm (1.2 in)
197038.1 mm (1.5 in)
197143.7 mm (1.7 in)
197228.2 mm (1.1 in)
197345.2 mm (1.8 in)
197453.0 mm (2.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Port Augusta (Nacoona) by year The wettest five days of the year at Port Augusta (Nacoona), 1940 to 1974. The record is 124.2 mm (4.9 in) in 1974, marked on the chart; the median year is 45.0 mm (1.8 in). 0501001501940195019601970Record: 124.2 mm (4.9 in) in 1974
The wettest five days of the year at Port Augusta (Nacoona), 1940 to 1974. The record is 124.2 mm (4.9 in) in 1974, marked on the chart; the median year is 45.0 mm (1.8 in).
Wettest five days (Rx5day) at Port Augusta (Nacoona) by year
YearWettest five days (Rx5day)
194014.0 mm (0.6 in)
194156.5 mm (2.2 in)
194237.8 mm (1.5 in)
194359.0 mm (2.3 in)
194428.2 mm (1.1 in)
194553.0 mm (2.1 in)
1946105.9 mm (4.2 in)
194745.0 mm (1.8 in)
194838.1 mm (1.5 in)
194964.8 mm (2.6 in)
195053.0 mm (2.1 in)
195168.6 mm (2.7 in)
195233.3 mm (1.3 in)
195327.2 mm (1.1 in)
195441.7 mm (1.6 in)
195557.2 mm (2.3 in)
195651.0 mm (2.0 in)
195731.2 mm (1.2 in)
195843.4 mm (1.7 in)
195946.5 mm (1.8 in)
196037.3 mm (1.5 in)
196126.9 mm (1.1 in)
196230.7 mm (1.2 in)
196345.2 mm (1.8 in)
196454.3 mm (2.1 in)
196526.2 mm (1.0 in)
196674.4 mm (2.9 in)
196745.3 mm (1.8 in)
196833.0 mm (1.3 in)
196930.2 mm (1.2 in)
197038.1 mm (1.5 in)
197145.0 mm (1.8 in)
197230.3 mm (1.2 in)
1973112.0 mm (4.4 in)
1974124.2 mm (4.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Port Augusta (Nacoona) by year The longest dry spell of the year at Port Augusta (Nacoona), 1940 to 1974. The record is 85 days in 1964, marked on the chart; the median year is 52 days. 204060801001940195019601970Record: 85 days in 1964
The longest dry spell of the year at Port Augusta (Nacoona), 1940 to 1974. The record is 85 days in 1964, marked on the chart; the median year is 52 days.
Longest dry spell (CDD) at Port Augusta (Nacoona) by year
YearLongest dry spell (CDD)
194076 days
194130 days
194247 days
194351 days
194452 days
194556 days
194637 days
194742 days
194852 days
194948 days
195055 days
195160 days
195255 days
195355 days
195475 days
195529 days
195647 days
195751 days
195850 days
195947 days
196064 days
196160 days
196236 days
196351 days
196485 days
196577 days
196649 days
196781 days
196842 days
196956 days
197061 days
197161 days
197277 days
197350 days
197428 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

33 years, 1940 to 1973

A day with at least 30.4 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 79.0 mm (3.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Port Augusta (Nacoona): the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years30.4 mm (1.2 in)
5 years42.0 mm (1.7 in)
10 years50.2 mm (2.0 in)
25 years61.2 mm (2.4 in)
50 years69.9 mm (2.8 in)Longer than the 33 years of record
100 years79.0 mm (3.1 in)Longer than the 33 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, 33 years of values from 1940 to 1973.

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: 73.7 mm (2.9 in) in 1946; 64.5 mm (2.5 in) in 1949; 51.8 mm (2.0 in) in 1966.

Download the Data

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