Daily records
Page built 2026-10-15
Data as of 2025-12-31
Search
Built 2026-10-15 (15 October 2026)

Blackwood Post Office Weather Records (ASN00023706)

Record envelope, standing records and threshold days for Blackwood Post Office (ASN00023706), Australia, with 52 years of record.

Key Facts for Blackwood Post Office

  • Blackwood Post Office (ASN00023706) is a weather station in Australia at -35.02 latitude and 138.62 longitude, 265 m (869 ft) above sea level.
  • The station reports from 1928 to 1979, 52 years of record.
  • 0 records set at Blackwood Post Office still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Blackwood Post Office set a daily record precipitation of 29.4 mm (1.2 in) on 4 December 1978.

About the Station

  • Location: Australia, -35.02 latitude, 138.62 longitude.
  • Elevation: 265 m (869 ft).
  • Period of record: 1928 to 1979, 52 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Blackwood Post Office, with 2026 drawn through them The band shows the record high and record low for each calendar day at Blackwood Post Office. 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 Blackwood Post Office. 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 Blackwood Post Office, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
Febn/an/an/an/a
Marn/an/an/an/a
Aprn/an/an/an/a
Mayn/an/an/an/a
Junn/an/an/an/a
Juln/an/an/an/a
Augn/an/an/an/a
Sepn/an/an/an/a
Octn/an/an/an/a
Novn/an/an/an/a
Decn/an/an/an/a

Which Years Hold Standing Records

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

All-Time Record Progression

1 new records
When Blackwood Post Office set new all-time records 1 all-time records were set at Blackwood Post Office between 12 November 1960 and 12 November 1960. Each dot is a new record. Record daily precipitation12 November 1960: Record daily precipitation 69.3 mm (2.7 in)1960
1 all-time records were set at Blackwood Post Office between 12 November 1960 and 12 November 1960. Each dot is a new record.
When Blackwood Post Office set new all-time records
DateKindDetail
1960-11-12Record daily precipitationRecord daily precipitation 69.3 mm (2.7 in)

Wettest Day of Each Month

Nov: 69.3 mm (2.7 in)
Record daily precipitation for each month at Blackwood Post Office The wettest day on record for each calendar month at Blackwood Post Office. The most was 69.3 mm (2.7 in) on 12 November 1960. 020406080 Jan: 63.2 mm (2.5 in), 25 January 1941 Jan Feb: 61.6 mm (2.4 in), 1 February 1974 Feb Mar: 38.4 mm (1.5 in), 28 March 1947 Mar Apr: 56.6 mm (2.2 in), 14 April 1954 Apr May: 46.0 mm (1.8 in), 2 May 1944 May Jun: 55.9 mm (2.2 in), 21 June 1957 Jun Jul: 44.4 mm (1.7 in), 31 July 1975 Jul Aug: 36.1 mm (1.4 in), 15 August 1934 Aug Sep: 36.6 mm (1.4 in), 3 September 1931 Sep Oct: 48.0 mm (1.9 in), 16 October 1974 Oct Nov: 69.3 mm (2.7 in), 12 November 1960 Nov Dec: 47.5 mm (1.9 in), 27 December 1929 Dec
The wettest day on record for each calendar month at Blackwood Post Office. The most was 69.3 mm (2.7 in) on 12 November 1960.
Record daily precipitation for each month at Blackwood Post Office
MonthRecord daily precipitation (mm)Date
Jan63.2 mm (2.5 in)25 January 1941
Feb61.6 mm (2.4 in)1 February 1974
Mar38.4 mm (1.5 in)28 March 1947
Apr56.6 mm (2.2 in)14 April 1954
May46.0 mm (1.8 in)2 May 1944
Jun55.9 mm (2.2 in)21 June 1957
Jul44.4 mm (1.7 in)31 July 1975
Aug36.1 mm (1.4 in)15 August 1934
Sep36.6 mm (1.4 in)3 September 1931
Oct48.0 mm (1.9 in)16 October 1974
Nov69.3 mm (2.7 in)12 November 1960
Dec47.5 mm (1.9 in)27 December 1929

Latest Records

20
Latest records at Blackwood Post Office
DateStationRecordValueBeat old record byOld record stoodSignificance
4 December 1978Blackwood Post Office, AUdaily rain29.4 mm (1.2 in)18.5 mm (0.7 in)8 years33 of 100 (Routine)
22 September 1978Blackwood Post Office, AUdaily rain24.6 mm (1.0 in)3.0 mm (0.12 in)35 years19 of 100 (Routine)
18 August 1978Blackwood Post Office, AUdaily rain9.0 mm (0.35 in)1.9 mm (0.07 in)28 years16 of 100 (Routine)
18 July 1978Blackwood Post Office, AUdaily rain27.0 mm (1.1 in)18.9 mm (0.7 in)39 years46 of 100 (Notable)
6 July 1978Blackwood Post Office, AUdaily rain28.0 mm (1.1 in)11.5 mm (0.5 in)12 years26 of 100 (Routine)
10 May 1978Blackwood Post Office, AUdaily rain15.0 mm (0.6 in)5.9 mm (0.23 in)43 years20 of 100 (Routine)
9 May 1978Blackwood Post Office, AUdaily rain24.0 mm (0.9 in)5.5 mm (0.22 in)25 years18 of 100 (Routine)
10 April 1978Blackwood Post Office, AUdaily rain25.2 mm (1.0 in)5.4 mm (0.21 in)20 years16 of 100 (Routine)
2 December 1977Blackwood Post Office, AUdaily rain13.0 mm (0.5 in)6.1 mm (0.24 in)11 years16 of 100 (Routine)
29 November 1977Blackwood Post Office, AUdaily rain11.8 mm (0.5 in)6.0 mm (0.24 in)43 years20 of 100 (Routine)
14 October 1977Blackwood Post Office, AUdaily rain16.6 mm (0.7 in)10.5 mm (0.4 in)28 years20 of 100 (Routine)
14 January 1977Blackwood Post Office, AUdaily rain16.7 mm (0.7 in)10.7 mm (0.4 in)3 years16 of 100 (Routine)
26 February 1976Blackwood Post Office, AUdaily rain39.4 mm (1.6 in)7.9 mm (0.31 in)26 years19 of 100 (Routine)
12 January 1976Blackwood Post Office, AUdaily rain21.6 mm (0.9 in)12.2 mm (0.5 in)32 years20 of 100 (Routine)
31 October 1975Blackwood Post Office, AUdaily rain17.0 mm (0.7 in)11.7 mm (0.5 in)13 years20 of 100 (Routine)
8 October 1975Blackwood Post Office, AUdaily rain16.2 mm (0.6 in)2.0 mm (0.08 in)20 years13 of 100 (Routine)
16 September 1975Blackwood Post Office, AUdaily rain (Tie)15.2 mm (0.6 in)tie32 years3 of 100 (Routine)
31 July 1975Blackwood Post Office, AUmonthly rain44.4 mm (1.7 in)8.1 mm (0.32 in)2 years27 of 100 (Routine)
20 March 1975Blackwood Post Office, AUdaily rain27.6 mm (1.1 in)15.4 mm (0.6 in)40 years38 of 100 (Notable)
3 March 1975Blackwood Post Office, AUdaily rain6.2 mm (0.24 in)3.4 mm (0.13 in)18 years13 of 100 (Routine)

Extremes by Year

1928 to 1979
Yearly extremes at Blackwood Post Office: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)69.3 mm (2.7 in)196037.1 mm (1.5 in)52
Wettest five days (Rx5day)101.8 mm (4.0 in)193159.4 mm (2.3 in)52
Longest dry spell (CDD)67 days195731 days52

Wettest day (Rx1day)

Wettest day (Rx1day) at Blackwood Post Office by year The wettest day of the year at Blackwood Post Office, 1928 to 1979. The record is 69.3 mm (2.7 in) in 1960, marked on the chart; the median year is 37.1 mm (1.5 in). 02040608019301940195019601970Record: 69.3 mm (2.7 in) in 1960
The wettest day of the year at Blackwood Post Office, 1928 to 1979. The record is 69.3 mm (2.7 in) in 1960, marked on the chart; the median year is 37.1 mm (1.5 in).
Wettest day (Rx1day) at Blackwood Post Office by year
YearWettest day (Rx1day)
192816.3 mm (0.6 in)
192947.5 mm (1.9 in)
193024.1 mm (0.9 in)
193144.2 mm (1.7 in)
193233.8 mm (1.3 in)
193347.8 mm (1.9 in)
193436.1 mm (1.4 in)
193526.7 mm (1.1 in)
193630.7 mm (1.2 in)
193730.2 mm (1.2 in)
193816.8 mm (0.7 in)
193937.1 mm (1.5 in)
194033.8 mm (1.3 in)
194163.2 mm (2.5 in)
194230.5 mm (1.2 in)
194357.9 mm (2.3 in)
194446.0 mm (1.8 in)
194532.0 mm (1.3 in)
194639.9 mm (1.6 in)
194738.4 mm (1.5 in)
194838.1 mm (1.5 in)
194931.5 mm (1.2 in)
195042.2 mm (1.7 in)
195126.2 mm (1.0 in)
195244.7 mm (1.8 in)
195332.5 mm (1.3 in)
195456.6 mm (2.2 in)
195543.2 mm (1.7 in)
195637.6 mm (1.5 in)
195755.9 mm (2.2 in)
195840.6 mm (1.6 in)
195919.1 mm (0.8 in)
196069.3 mm (2.7 in)
196145.7 mm (1.8 in)
196223.6 mm (0.9 in)
196349.5 mm (1.9 in)
196465.0 mm (2.6 in)
196519.6 mm (0.8 in)
196632.5 mm (1.3 in)
196718.8 mm (0.7 in)
196834.3 mm (1.4 in)
196924.4 mm (1.0 in)
197037.1 mm (1.5 in)
197150.3 mm (2.0 in)
197221.8 mm (0.9 in)
197347.0 mm (1.9 in)
197461.6 mm (2.4 in)
197544.4 mm (1.7 in)
197639.4 mm (1.6 in)
197717.2 mm (0.7 in)
197829.4 mm (1.2 in)
197913.0 mm (0.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Blackwood Post Office by year The wettest five days of the year at Blackwood Post Office, 1928 to 1979. The record is 101.8 mm (4.0 in) in 1931, marked on the chart; the median year is 59.4 mm (2.3 in). 025507510012519301940195019601970Record: 101.8 mm (4.0 in) in 1931
The wettest five days of the year at Blackwood Post Office, 1928 to 1979. The record is 101.8 mm (4.0 in) in 1931, marked on the chart; the median year is 59.4 mm (2.3 in).
Wettest five days (Rx5day) at Blackwood Post Office by year
YearWettest five days (Rx5day)
192849.0 mm (1.9 in)
192968.6 mm (2.7 in)
193077.2 mm (3.0 in)
1931101.8 mm (4.0 in)
193254.3 mm (2.1 in)
193364.5 mm (2.5 in)
193475.2 mm (3.0 in)
193540.1 mm (1.6 in)
193652.6 mm (2.1 in)
193739.9 mm (1.6 in)
193833.0 mm (1.3 in)
193970.2 mm (2.8 in)
194079.8 mm (3.1 in)
194190.6 mm (3.6 in)
194266.8 mm (2.6 in)
194367.8 mm (2.7 in)
194461.8 mm (2.4 in)
194543.4 mm (1.7 in)
194658.1 mm (2.3 in)
194758.0 mm (2.3 in)
194855.4 mm (2.2 in)
194962.6 mm (2.5 in)
195084.5 mm (3.3 in)
195143.7 mm (1.7 in)
195255.9 mm (2.2 in)
195362.9 mm (2.5 in)
195459.1 mm (2.3 in)
195563.8 mm (2.5 in)
195675.2 mm (3.0 in)
195769.4 mm (2.7 in)
195859.7 mm (2.4 in)
195921.6 mm (0.9 in)
196077.4 mm (3.0 in)
196166.8 mm (2.6 in)
196264.1 mm (2.5 in)
196357.2 mm (2.3 in)
196475.1 mm (3.0 in)
196540.2 mm (1.6 in)
196661.4 mm (2.4 in)
196739.6 mm (1.6 in)
196852.9 mm (2.1 in)
196939.4 mm (1.6 in)
197048.0 mm (1.9 in)
197179.8 mm (3.1 in)
197240.9 mm (1.6 in)
197361.4 mm (2.4 in)
197495.4 mm (3.8 in)
197547.3 mm (1.9 in)
197651.6 mm (2.0 in)
197724.8 mm (1.0 in)
197846.1 mm (1.8 in)
197913.0 mm (0.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Blackwood Post Office by year The longest dry spell of the year at Blackwood Post Office, 1928 to 1979. The record is 67 days in 1957, marked on the chart; the median year is 31 days. 02040608019301940195019601970Record: 67 days in 1957
The longest dry spell of the year at Blackwood Post Office, 1928 to 1979. The record is 67 days in 1957, marked on the chart; the median year is 31 days.
Longest dry spell (CDD) at Blackwood Post Office by year
YearLongest dry spell (CDD)
192856 days
192930 days
193051 days
193147 days
193226 days
193324 days
193438 days
193537 days
193627 days
193733 days
193826 days
193924 days
194026 days
194125 days
194232 days
194333 days
194426 days
194528 days
194619 days
194732 days
194852 days
194938 days
195042 days
195140 days
195229 days
195356 days
195446 days
195534 days
195631 days
195767 days
195836 days
195930 days
196016 days
196121 days
196222 days
196328 days
196422 days
196526 days
196627 days
196736 days
196828 days
196934 days
197034 days
197132 days
197246 days
197329 days
197442 days
197530 days
197625 days
197728 days
197841 days
197916 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.

Download the Data

  • Data for Blackwood Post Office standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Blackwood Post Office 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).