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Built 2026-10-15 (15 October 2026)

Merredin Pump Station No.4 Weather Records (ASN00010248)

Record envelope, standing records and threshold days for Merredin Pump Station No.4 (ASN00010248), Australia, with 58 years of record.

Key Facts for Merredin Pump Station No.4

  • Merredin Pump Station No.4 (ASN00010248) is a weather station in Australia at -31.49 latitude and 118.25 longitude, 303 m (994 ft) above sea level.
  • The station reports from 1930 to 1987, 58 years of record.
  • 0 records set at Merredin Pump Station No.4 still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Merredin Pump Station No.4 set a daily record precipitation of 14.4 mm (0.6 in) on 26 August 1987.

About the Station

  • Location: Australia, -31.49 latitude, 118.25 longitude.
  • Elevation: 303 m (994 ft).
  • Period of record: 1930 to 1987, 58 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Merredin Pump Station No.4, with 2026 drawn through them The band shows the record high and record low for each calendar day at Merredin Pump Station No.4. 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 Merredin Pump Station No.4. 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 Merredin Pump Station No.4, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
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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 Merredin Pump Station No.4 by the year they were set 0 records at Merredin Pump Station No.4 still stand. 00000000000
0 records at Merredin Pump Station No.4 still stand.
Standing records at Merredin Pump Station No.4 by the year they were set
Year setStanding records

Wettest Day of Each Month

Mar: 101.6 mm (4.0 in)
Record daily precipitation for each month at Merredin Pump Station No.4 The wettest day on record for each calendar month at Merredin Pump Station No.4. The most was 101.6 mm (4.0 in) on 28 March 1971. 050100150 Jan: 47.0 mm (1.9 in), 2 January 1966 Jan Feb: 45.7 mm (1.8 in), 17 February 1970 Feb Mar: 101.6 mm (4.0 in), 28 March 1971 Mar Apr: 57.0 mm (2.2 in), 4 April 1974 Apr May: 42.4 mm (1.7 in), 5 May 1965 May Jun: 48.5 mm (1.9 in), 25 June 1965 Jun Jul: 43.2 mm (1.7 in), 21 July 1960 Jul Aug: 29.0 mm (1.1 in), 19 August 1979 Aug Sep: 41.1 mm (1.6 in), 21 September 1955 Sep Oct: 30.0 mm (1.2 in), 15 October 1975 Oct Nov: 46.0 mm (1.8 in), 17 November 1983 Nov Dec: 39.0 mm (1.5 in), 19 December 1978 Dec
The wettest day on record for each calendar month at Merredin Pump Station No.4. The most was 101.6 mm (4.0 in) on 28 March 1971.
Record daily precipitation for each month at Merredin Pump Station No.4
MonthRecord daily precipitation (mm)Date
Jan47.0 mm (1.9 in)2 January 1966
Feb45.7 mm (1.8 in)17 February 1970
Mar101.6 mm (4.0 in)28 March 1971
Apr57.0 mm (2.2 in)4 April 1974
May42.4 mm (1.7 in)5 May 1965
Jun48.5 mm (1.9 in)25 June 1965
Jul43.2 mm (1.7 in)21 July 1960
Aug29.0 mm (1.1 in)19 August 1979
Sep41.1 mm (1.6 in)21 September 1955
Oct30.0 mm (1.2 in)15 October 1975
Nov46.0 mm (1.8 in)17 November 1983
Dec39.0 mm (1.5 in)19 December 1978

Latest Records

20
Latest records at Merredin Pump Station No.4
DateStationRecordValueBeat old record byOld record stoodSignificance
26 August 1987Merredin Pump Station No.4, AUdaily rain14.4 mm (0.6 in)2.5 mm (0.10 in)24 years18 of 100 (Routine)
21 August 1987Merredin Pump Station No.4, AUdaily rain12.8 mm (0.5 in)5.4 mm (0.21 in)24 years20 of 100 (Routine)
30 July 1987Merredin Pump Station No.4, AUdaily rain13.4 mm (0.5 in)2.0 mm (0.08 in)32 years17 of 100 (Routine)
29 July 1987Merredin Pump Station No.4, AUdaily rain15.5 mm (0.6 in)2.1 mm (0.08 in)12 years12 of 100 (Routine)
10 May 1987Merredin Pump Station No.4, AUdaily rain11.9 mm (0.5 in)3.8 mm (0.15 in)24 years17 of 100 (Routine)
9 May 1987Merredin Pump Station No.4, AUdaily rain19.2 mm (0.8 in)0.9 mm (0.04 in)24 years13 of 100 (Routine)
1 May 1987Merredin Pump Station No.4, AUdaily rain12.9 mm (0.5 in)10.4 mm (0.4 in)20 years20 of 100 (Routine)
18 March 1987Merredin Pump Station No.4, AUdaily rain1.8 mm (0.07 in)1.0 mm (0.04 in)12 years8 of 100 (Routine)
4 December 1986Merredin Pump Station No.4, AUdaily rain7.2 mm (0.28 in)7.2 mm (0.28 in)48 years20 of 100 (Routine)
8 August 1986Merredin Pump Station No.4, AUdaily rain12.6 mm (0.5 in)5.2 mm (0.20 in)4 years19 of 100 (Routine)
26 June 1986Merredin Pump Station No.4, AUdaily rain18.8 mm (0.7 in)11.7 mm (0.5 in)19 years20 of 100 (Routine)
13 May 1986Merredin Pump Station No.4, AUdaily rain31.4 mm (1.2 in)20.5 mm (0.8 in)24 years42 of 100 (Notable)
19 March 1986Merredin Pump Station No.4, AUdaily rain10.4 mm (0.4 in)7.9 mm (0.31 in)28 years19 of 100 (Routine)
21 February 1986Merredin Pump Station No.4, AUdaily rain9.8 mm (0.39 in)9.4 mm (0.37 in)8 years17 of 100 (Routine)
14 February 1986Merredin Pump Station No.4, AUdaily rain0.5 mm (0.02 in)0.1 mm (0.00 in)7 years7 of 100 (Routine)
20 November 1985Merredin Pump Station No.4, AUdaily rain24.0 mm (0.9 in)24.0 mm (0.9 in)54 years20 of 100 (Routine)
19 November 1985Merredin Pump Station No.4, AUdaily rain13.6 mm (0.5 in)9.6 mm (0.38 in)11 years20 of 100 (Routine)
1 October 1985Merredin Pump Station No.4, AUdaily rain17.6 mm (0.7 in)13.0 mm (0.5 in)8 years20 of 100 (Routine)
26 July 1985Merredin Pump Station No.4, AUdaily rain16.6 mm (0.7 in)3.1 mm (0.12 in)2 years11 of 100 (Routine)
10 April 1985Merredin Pump Station No.4, AUdaily rain7.7 mm (0.30 in)0.1 mm (0.00 in)12 years8 of 100 (Routine)

Extremes by Year

1930 to 1987
Yearly extremes at Merredin Pump Station No.4: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)101.6 mm (4.0 in)197124.1 mm (0.9 in)51
Wettest five days (Rx5day)130.6 mm (5.1 in)197134.3 mm (1.4 in)51
Longest dry spell (CDD)89 days195043 days51

Wettest day (Rx1day)

Wettest day (Rx1day) at Merredin Pump Station No.4 by year The wettest day of the year at Merredin Pump Station No.4, 1930 to 1987. The record is 101.6 mm (4.0 in) in 1971, marked on the chart; the median year is 24.1 mm (0.9 in). 050100150193019401950196019701980Record: 101.6 mm (4.0 in) in 1971
The wettest day of the year at Merredin Pump Station No.4, 1930 to 1987. The record is 101.6 mm (4.0 in) in 1971, marked on the chart; the median year is 24.1 mm (0.9 in).
Wettest day (Rx1day) at Merredin Pump Station No.4 by year
YearWettest day (Rx1day)
19300.0 mm (0.00 in)
19310.0 mm (0.00 in)
19320.0 mm (0.00 in)
19330.0 mm (0.00 in)
19340.0 mm (0.00 in)
19350.0 mm (0.00 in)
19370.0 mm (0.00 in)
19400.0 mm (0.00 in)
19410.0 mm (0.00 in)
19420.0 mm (0.00 in)
19440.0 mm (0.00 in)
19450.0 mm (0.00 in)
19460.0 mm (0.00 in)
19470.0 mm (0.00 in)
19480.0 mm (0.00 in)
19490.0 mm (0.00 in)
19500.0 mm (0.00 in)
195439.9 mm (1.6 in)
195541.1 mm (1.6 in)
195627.9 mm (1.1 in)
195718.5 mm (0.7 in)
195829.5 mm (1.2 in)
195924.1 mm (0.9 in)
196043.2 mm (1.7 in)
196133.8 mm (1.3 in)
196224.1 mm (0.9 in)
196333.0 mm (1.3 in)
196414.5 mm (0.6 in)
196548.5 mm (1.9 in)
196647.0 mm (1.9 in)
196726.7 mm (1.1 in)
196833.0 mm (1.3 in)
196931.5 mm (1.2 in)
197045.7 mm (1.8 in)
1971101.6 mm (4.0 in)
197241.9 mm (1.6 in)
197329.2 mm (1.1 in)
197457.0 mm (2.2 in)
197530.0 mm (1.2 in)
197618.4 mm (0.7 in)
197717.0 mm (0.7 in)
197839.0 mm (1.5 in)
197933.0 mm (1.3 in)
198013.8 mm (0.5 in)
198124.8 mm (1.0 in)
198218.8 mm (0.7 in)
198346.0 mm (1.8 in)
198430.0 mm (1.2 in)
198524.0 mm (0.9 in)
198631.4 mm (1.2 in)
198719.2 mm (0.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Merredin Pump Station No.4 by year The wettest five days of the year at Merredin Pump Station No.4, 1930 to 1987. The record is 130.6 mm (5.1 in) in 1971, marked on the chart; the median year is 34.3 mm (1.4 in). 050100150193019401950196019701980Record: 130.6 mm (5.1 in) in 1971
The wettest five days of the year at Merredin Pump Station No.4, 1930 to 1987. The record is 130.6 mm (5.1 in) in 1971, marked on the chart; the median year is 34.3 mm (1.4 in).
Wettest five days (Rx5day) at Merredin Pump Station No.4 by year
YearWettest five days (Rx5day)
19300.0 mm (0.00 in)
19310.0 mm (0.00 in)
19320.0 mm (0.00 in)
19330.0 mm (0.00 in)
19340.0 mm (0.00 in)
19350.0 mm (0.00 in)
19370.0 mm (0.00 in)
19400.0 mm (0.00 in)
19410.0 mm (0.00 in)
19420.0 mm (0.00 in)
19440.0 mm (0.00 in)
19450.0 mm (0.00 in)
19460.0 mm (0.00 in)
19470.0 mm (0.00 in)
19480.0 mm (0.00 in)
19490.0 mm (0.00 in)
19500.0 mm (0.00 in)
195458.8 mm (2.3 in)
195549.8 mm (2.0 in)
195640.6 mm (1.6 in)
195734.3 mm (1.4 in)
195838.5 mm (1.5 in)
195945.8 mm (1.8 in)
196066.3 mm (2.6 in)
196141.9 mm (1.6 in)
196234.4 mm (1.4 in)
196343.9 mm (1.7 in)
196422.4 mm (0.9 in)
196571.6 mm (2.8 in)
196665.8 mm (2.6 in)
196728.2 mm (1.1 in)
196866.3 mm (2.6 in)
196938.4 mm (1.5 in)
197068.6 mm (2.7 in)
1971130.6 mm (5.1 in)
197255.9 mm (2.2 in)
197348.0 mm (1.9 in)
197472.8 mm (2.9 in)
197536.2 mm (1.4 in)
197627.6 mm (1.1 in)
197729.2 mm (1.1 in)
197864.8 mm (2.6 in)
197947.0 mm (1.9 in)
198021.0 mm (0.8 in)
198139.0 mm (1.5 in)
198225.4 mm (1.0 in)
198346.6 mm (1.8 in)
198430.0 mm (1.2 in)
198537.6 mm (1.5 in)
198636.7 mm (1.4 in)
198731.6 mm (1.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Merredin Pump Station No.4 by year The longest dry spell of the year at Merredin Pump Station No.4, 1930 to 1987. The record is 89 days in 1950, marked on the chart; the median year is 43 days. 20406080100193019401950196019701980Record: 89 days in 1950
The longest dry spell of the year at Merredin Pump Station No.4, 1930 to 1987. The record is 89 days in 1950, marked on the chart; the median year is 43 days.
Longest dry spell (CDD) at Merredin Pump Station No.4 by year
YearLongest dry spell (CDD)
193059 days
193131 days
193230 days
193331 days
193428 days
193530 days
193759 days
194031 days
194159 days
194228 days
194429 days
194531 days
194631 days
194731 days
194831 days
194931 days
195089 days
195459 days
195540 days
195664 days
195769 days
195857 days
195937 days
196045 days
196150 days
196248 days
196341 days
196437 days
196532 days
196651 days
196762 days
196843 days
196957 days
197046 days
197152 days
197261 days
197387 days
197439 days
197558 days
197648 days
197749 days
197850 days
197934 days
198041 days
198134 days
198241 days
198340 days
198428 days
198545 days
198645 days
198748 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 Merredin Pump Station No.4 standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Merredin Pump Station No.4 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).