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Data as of 2025-12-31
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Built 2026-10-15 (15 October 2026)

Merrylands (Welsford Street) Weather Records (ASN00067070)

Record envelope, standing records and threshold days for Merrylands (Welsford Street) (ASN00067070), Australia, with 45 years of record.

Key Facts for Merrylands (Welsford Street)

  • Merrylands (Welsford Street) (ASN00067070) is a weather station in Australia at -33.83 latitude and 150.98 longitude, 45 m (148 ft) above sea level.
  • The station reports from 1968 to 2012, 45 years of record.
  • 0 records set at Merrylands (Welsford Street) still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Merrylands (Welsford Street) set a monthly record daily precipitation of 183.2 mm (7.2 in) on 19 April 2012.

About the Station

  • Location: Australia, -33.83 latitude, 150.98 longitude.
  • Elevation: 45 m (148 ft).
  • Period of record: 1968 to 2012, 45 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Merrylands (Welsford Street), with 2026 drawn through them The band shows the record high and record low for each calendar day at Merrylands (Welsford Street). 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 Merrylands (Welsford Street). 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 Merrylands (Welsford Street), with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
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Which Years Hold Standing Records

0 standing records
Standing records at Merrylands (Welsford Street) by the year they were set 0 records at Merrylands (Welsford Street) still stand. 00000000000
0 records at Merrylands (Welsford Street) still stand.
Standing records at Merrylands (Welsford Street) by the year they were set
Year setStanding records

Wettest Day of Each Month

Aug: 308.2 mm (12.1 in)
Record daily precipitation for each month at Merrylands (Welsford Street) The wettest day on record for each calendar month at Merrylands (Welsford Street). The most was 308.2 mm (12.1 in) on 6 August 1986. 0100200300400 Jan: 113.2 mm (4.5 in), 31 January 2001 Jan Feb: 177.0 mm (7.0 in), 3 February 1990 Feb Mar: 137.4 mm (5.4 in), 20 March 1978 Mar Apr: 183.2 mm (7.2 in), 19 April 2012 Apr May: 182.4 mm (7.2 in), 1 May 1988 May Jun: 196.8 mm (7.7 in), 11 June 1991 Jun Jul: 175.2 mm (6.9 in), 6 July 1988 Jul Aug: 308.2 mm (12.1 in), 6 August 1986 Aug Sep: 118.6 mm (4.7 in), 2 September 1970 Sep Oct: 109.5 mm (4.3 in), 17 October 1972 Oct Nov: 145.0 mm (5.7 in), 14 November 1986 Nov Dec: 86.4 mm (3.4 in), 7 December 1992 Dec
The wettest day on record for each calendar month at Merrylands (Welsford Street). The most was 308.2 mm (12.1 in) on 6 August 1986.
Record daily precipitation for each month at Merrylands (Welsford Street)
MonthRecord daily precipitation (mm)Date
Jan113.2 mm (4.5 in)31 January 2001
Feb177.0 mm (7.0 in)3 February 1990
Mar137.4 mm (5.4 in)20 March 1978
Apr183.2 mm (7.2 in)19 April 2012
May182.4 mm (7.2 in)1 May 1988
Jun196.8 mm (7.7 in)11 June 1991
Jul175.2 mm (6.9 in)6 July 1988
Aug308.2 mm (12.1 in)6 August 1986
Sep118.6 mm (4.7 in)2 September 1970
Oct109.5 mm (4.3 in)17 October 1972
Nov145.0 mm (5.7 in)14 November 1986
Dec86.4 mm (3.4 in)7 December 1992

Latest Records

20
Latest records at Merrylands (Welsford Street)
DateStationRecordValueBeat old record byOld record stoodSignificance
19 April 2012Merrylands (Welsford Street), AUmonthly rain183.2 mm (7.2 in)58.4 mm (2.3 in)23 years58 of 100 (Notable)
8 March 2012Merrylands (Welsford Street), AUdaily rain89.8 mm (3.5 in)12.8 mm (0.5 in)18 years17 of 100 (Routine)
20 December 2011Merrylands (Welsford Street), AUdaily rain50.6 mm (2.0 in)41.2 mm (1.6 in)13 years44 of 100 (Notable)
12 December 2011Merrylands (Welsford Street), AUdaily rain42.6 mm (1.7 in)21.0 mm (0.8 in)20 years28 of 100 (Routine)
25 November 2011Merrylands (Welsford Street), AUdaily rain10.8 mm (0.4 in)1.9 mm (0.07 in)38 years16 of 100 (Routine)
23 November 2011Merrylands (Welsford Street), AUdaily rain36.8 mm (1.4 in)18.4 mm (0.7 in)14 years20 of 100 (Routine)
31 May 2011Merrylands (Welsford Street), AUdaily rain55.2 mm (2.2 in)33.4 mm (1.3 in)32 years34 of 100 (Routine)
3 December 2010Merrylands (Welsford Street), AUdaily rain12.6 mm (0.5 in)1.2 mm (0.05 in)4 years6 of 100 (Routine)
2 November 2010Merrylands (Welsford Street), AUdaily rain31.8 mm (1.3 in)15.2 mm (0.6 in)36 years24 of 100 (Routine)
3 October 2010Merrylands (Welsford Street), AUdaily rain16.8 mm (0.7 in)0.8 mm (0.03 in)36 years15 of 100 (Routine)
4 September 2010Merrylands (Welsford Street), AUdaily rain22.2 mm (0.9 in)16.8 mm (0.7 in)0 years16 of 100 (Routine)
10 August 2010Merrylands (Welsford Street), AUdaily rain4.6 mm (0.18 in)2.4 mm (0.09 in)23 years11 of 100 (Routine)
31 July 2010Merrylands (Welsford Street), AUdaily rain5.6 mm (0.22 in)3.4 mm (0.13 in)20 years12 of 100 (Routine)
4 June 2010Merrylands (Welsford Street), AUdaily rain25.2 mm (1.0 in)1.4 mm (0.06 in)20 years10 of 100 (Routine)
27 May 2010Merrylands (Welsford Street), AUdaily rain36.4 mm (1.4 in)12.8 mm (0.5 in)36 years22 of 100 (Routine)
31 March 2010Merrylands (Welsford Street), AUdaily rain40.6 mm (1.6 in)1.7 mm (0.07 in)40 years17 of 100 (Routine)
6 February 2010Merrylands (Welsford Street), AUdaily rain47.4 mm (1.9 in)10.6 mm (0.4 in)8 years11 of 100 (Routine)
28 December 2009Merrylands (Welsford Street), AUdaily rain31.6 mm (1.2 in)18.6 mm (0.7 in)36 years30 of 100 (Routine)
26 October 2009Merrylands (Welsford Street), AUdaily rain33.2 mm (1.3 in)13.8 mm (0.5 in)24 years21 of 100 (Routine)
4 October 2009Merrylands (Welsford Street), AUdaily rain28.4 mm (1.1 in)14.9 mm (0.6 in)36 years25 of 100 (Routine)

Extremes by Year

1968 to 2012
Yearly extremes at Merrylands (Welsford Street): the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)308.2 mm (12.1 in)198681.8 mm (3.2 in)45
Wettest five days (Rx5day)449.4 mm (17.7 in)1986144.2 mm (5.7 in)45
Longest dry spell (CDD)76 days196827 days45

Wettest day (Rx1day)

Wettest day (Rx1day) at Merrylands (Welsford Street) by year The wettest day of the year at Merrylands (Welsford Street), 1968 to 2012. The record is 308.2 mm (12.1 in) in 1986, marked on the chart; the median year is 81.8 mm (3.2 in). 010020030040019701980199020002010Record: 308.2 mm (12.1 in) in 1986
The wettest day of the year at Merrylands (Welsford Street), 1968 to 2012. The record is 308.2 mm (12.1 in) in 1986, marked on the chart; the median year is 81.8 mm (3.2 in).
Wettest day (Rx1day) at Merrylands (Welsford Street) by year
YearWettest day (Rx1day)
196852.3 mm (2.1 in)
1969126.0 mm (5.0 in)
1970118.6 mm (4.7 in)
197140.1 mm (1.6 in)
1972109.5 mm (4.3 in)
197362.5 mm (2.5 in)
197494.2 mm (3.7 in)
1975130.2 mm (5.1 in)
197678.0 mm (3.1 in)
197783.6 mm (3.3 in)
1978137.4 mm (5.4 in)
197949.6 mm (2.0 in)
198095.6 mm (3.8 in)
198171.2 mm (2.8 in)
198268.8 mm (2.7 in)
198375.8 mm (3.0 in)
198456.6 mm (2.2 in)
198566.6 mm (2.6 in)
1986308.2 mm (12.1 in)
198776.4 mm (3.0 in)
1988182.4 mm (7.2 in)
198961.2 mm (2.4 in)
1990177.0 mm (7.0 in)
1991196.8 mm (7.7 in)
1992134.4 mm (5.3 in)
199337.6 mm (1.5 in)
199477.0 mm (3.0 in)
1995112.4 mm (4.4 in)
199687.4 mm (3.4 in)
199781.8 mm (3.2 in)
1998115.8 mm (4.6 in)
199983.2 mm (3.3 in)
200050.4 mm (2.0 in)
2001113.2 mm (4.5 in)
200276.4 mm (3.0 in)
200389.0 mm (3.5 in)
200456.6 mm (2.2 in)
200554.4 mm (2.1 in)
2006107.2 mm (4.2 in)
2007116.8 mm (4.6 in)
200880.2 mm (3.2 in)
200948.4 mm (1.9 in)
201047.4 mm (1.9 in)
201155.2 mm (2.2 in)
2012183.2 mm (7.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Merrylands (Welsford Street) by year The wettest five days of the year at Merrylands (Welsford Street), 1968 to 2012. The record is 449.4 mm (17.7 in) in 1986, marked on the chart; the median year is 144.2 mm (5.7 in). 010020030040050019701980199020002010Record: 449.4 mm (17.7 in) in 1986
The wettest five days of the year at Merrylands (Welsford Street), 1968 to 2012. The record is 449.4 mm (17.7 in) in 1986, marked on the chart; the median year is 144.2 mm (5.7 in).
Wettest five days (Rx5day) at Merrylands (Welsford Street) by year
YearWettest five days (Rx5day)
196887.4 mm (3.4 in)
1969240.1 mm (9.5 in)
1970134.7 mm (5.3 in)
197195.5 mm (3.8 in)
1972153.9 mm (6.1 in)
1973133.4 mm (5.3 in)
1974153.4 mm (6.0 in)
1975162.8 mm (6.4 in)
1976221.8 mm (8.7 in)
1977117.6 mm (4.6 in)
1978318.0 mm (12.5 in)
1979111.0 mm (4.4 in)
1980104.2 mm (4.1 in)
1981137.2 mm (5.4 in)
1982122.4 mm (4.8 in)
1983192.0 mm (7.6 in)
1984165.2 mm (6.5 in)
1985117.6 mm (4.6 in)
1986449.4 mm (17.7 in)
1987120.4 mm (4.7 in)
1988369.0 mm (14.5 in)
1989144.2 mm (5.7 in)
1990417.0 mm (16.4 in)
1991315.2 mm (12.4 in)
1992302.6 mm (11.9 in)
199362.6 mm (2.5 in)
1994115.4 mm (4.5 in)
1995149.2 mm (5.9 in)
1996127.6 mm (5.0 in)
1997153.2 mm (6.0 in)
1998144.0 mm (5.7 in)
1999127.8 mm (5.0 in)
2000136.0 mm (5.4 in)
2001207.6 mm (8.2 in)
2002188.6 mm (7.4 in)
2003214.4 mm (8.4 in)
2004128.4 mm (5.1 in)
2005108.8 mm (4.3 in)
2006172.4 mm (6.8 in)
2007177.0 mm (7.0 in)
2008223.4 mm (8.8 in)
2009124.0 mm (4.9 in)
2010147.6 mm (5.8 in)
201197.2 mm (3.8 in)
201287.4 mm (3.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Merrylands (Welsford Street) by year The longest dry spell of the year at Merrylands (Welsford Street), 1968 to 2012. The record is 76 days in 1968, marked on the chart; the median year is 27 days. 02040608019701980199020002010Record: 76 days in 1968
The longest dry spell of the year at Merrylands (Welsford Street), 1968 to 2012. The record is 76 days in 1968, marked on the chart; the median year is 27 days.
Longest dry spell (CDD) at Merrylands (Welsford Street) by year
YearLongest dry spell (CDD)
196876 days
196927 days
197040 days
197141 days
197222 days
197330 days
197431 days
197542 days
197628 days
197742 days
197826 days
197926 days
198042 days
198136 days
198242 days
198318 days
198429 days
198528 days
198627 days
198721 days
198842 days
198963 days
199020 days
199118 days
199219 days
199321 days
199427 days
199557 days
199631 days
199732 days
199813 days
199920 days
200018 days
200127 days
200235 days
200322 days
200449 days
200523 days
200633 days
200722 days
200816 days
200922 days
201017 days
201123 days
20127 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

42 years, 1969 to 2010

A day with at least 83.3 mm (3.3 in) of rain is expected about once in 2 years. A day with at least 291.0 mm (11.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Merrylands (Welsford Street): the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years83.3 mm (3.3 in)
5 years123.2 mm (4.9 in)
10 years154.9 mm (6.1 in)
25 years202.4 mm (8.0 in)
50 years243.8 mm (9.6 in)Longer than the 42 years of record
100 years291.0 mm (11.5 in)Longer than the 42 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, 42 years of values from 1969 to 2010.

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: 308.2 mm (12.1 in) in 1986; 196.8 mm (7.7 in) in 1991; 182.4 mm (7.2 in) in 1988.

Download the Data

  • Data for Merrylands (Welsford Street) standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Merrylands (Welsford Street) 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).