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

Grassdale Weather Records (ASN00090097)

Record envelope, standing records and threshold days for Grassdale (ASN00090097), Australia, with 42 years of record.

Key Facts for Grassdale

  • Grassdale (ASN00090097) is a weather station in Australia at -37.80 latitude and 141.68 longitude, 190 m (623 ft) above sea level.
  • The station reports from 1954 to 1995, 42 years of record.
  • 0 records set at Grassdale still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Grassdale set a daily record precipitation of 17.0 mm (0.7 in) on 11 June 1995.

About the Station

  • Location: Australia, -37.80 latitude, 141.68 longitude.
  • Elevation: 190 m (623 ft).
  • Period of record: 1954 to 1995, 42 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Grassdale, with 2026 drawn through them The band shows the record high and record low for each calendar day at Grassdale. 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 Grassdale. 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 Grassdale, 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 Grassdale by the year they were set 0 records at Grassdale still stand. 00000000000
0 records at Grassdale still stand.
Standing records at Grassdale by the year they were set
Year setStanding records

All-Time Record Progression

1 new records
When Grassdale set new all-time records 1 all-time records were set at Grassdale between 24 January 1991 and 24 January 1991. Each dot is a new record. Record daily precipitation24 January 1991: Record daily precipitation 80.0 mm (3.1 in)
1 all-time records were set at Grassdale between 24 January 1991 and 24 January 1991. Each dot is a new record.
When Grassdale set new all-time records
DateKindDetail
1991-01-24Record daily precipitationRecord daily precipitation 80.0 mm (3.1 in)

Wettest Day of Each Month

Jan: 80.0 mm (3.1 in)
Record daily precipitation for each month at Grassdale The wettest day on record for each calendar month at Grassdale. The most was 80.0 mm (3.1 in) on 24 January 1991. 020406080 Jan: 80.0 mm (3.1 in), 24 January 1991 Jan Feb: 54.1 mm (2.1 in), 7 February 1957 Feb Mar: 64.2 mm (2.5 in), 22 March 1983 Mar Apr: 68.0 mm (2.7 in), 6 April 1992 Apr May: 47.6 mm (1.9 in), 3 May 1983 May Jun: 32.3 mm (1.3 in), 8 June 1956 Jun Jul: 35.3 mm (1.4 in), 12 July 1964 Jul Aug: 32.4 mm (1.3 in), 7 August 1978 Aug Sep: 53.0 mm (2.1 in), 18 September 1978 Sep Oct: 59.8 mm (2.4 in), 16 October 1976 Oct Nov: 58.6 mm (2.3 in), 29 November 1977 Nov Dec: 39.4 mm (1.6 in), 25 December 1959 Dec
The wettest day on record for each calendar month at Grassdale. The most was 80.0 mm (3.1 in) on 24 January 1991.
Record daily precipitation for each month at Grassdale
MonthRecord daily precipitation (mm)Date
Jan80.0 mm (3.1 in)24 January 1991
Feb54.1 mm (2.1 in)7 February 1957
Mar64.2 mm (2.5 in)22 March 1983
Apr68.0 mm (2.7 in)6 April 1992
May47.6 mm (1.9 in)3 May 1983
Jun32.3 mm (1.3 in)8 June 1956
Jul35.3 mm (1.4 in)12 July 1964
Aug32.4 mm (1.3 in)7 August 1978
Sep53.0 mm (2.1 in)18 September 1978
Oct59.8 mm (2.4 in)16 October 1976
Nov58.6 mm (2.3 in)29 November 1977
Dec39.4 mm (1.6 in)25 December 1959

Latest Records

20
Latest records at Grassdale
DateStationRecordValueBeat old record byOld record stoodSignificance
11 June 1995Grassdale, AUdaily rain17.0 mm (0.7 in)1.8 mm (0.07 in)34 years17 of 100 (Routine)
6 June 1995Grassdale, AUdaily rain21.0 mm (0.8 in)9.8 mm (0.39 in)12 years20 of 100 (Routine)
17 April 1995Grassdale, AUdaily rain18.5 mm (0.7 in)2.2 mm (0.09 in)29 years15 of 100 (Routine)
5 April 1995Grassdale, AUdaily rain8.5 mm (0.33 in)0.3 mm (0.01 in)5 years5 of 100 (Routine)
8 March 1995Grassdale, AUdaily rain21.0 mm (0.8 in)5.5 mm (0.22 in)36 years20 of 100 (Routine)
16 February 1995Grassdale, AUdaily rain18.3 mm (0.7 in)9.9 mm (0.39 in)12 years18 of 100 (Routine)
5 February 1995Grassdale, AUdaily rain7.6 mm (0.30 in)5.2 mm (0.20 in)13 years13 of 100 (Routine)
21 December 1994Grassdale, AUdaily rain9.0 mm (0.35 in)6.0 mm (0.24 in)1 year15 of 100 (Routine)
7 October 1994Grassdale, AUdaily rain25.0 mm (1.0 in)7.7 mm (0.30 in)33 years26 of 100 (Routine)
2 October 1994Grassdale, AUdaily rain27.3 mm (1.1 in)7.0 mm (0.28 in)29 years23 of 100 (Routine)
30 July 1994Grassdale, AUdaily rain17.6 mm (0.7 in)5.7 mm (0.22 in)37 years20 of 100 (Routine)
3 April 1994Grassdale, AUdaily rain5.0 mm (0.20 in)0.8 mm (0.03 in)20 years11 of 100 (Routine)
8 January 1994Grassdale, AUdaily rain17.4 mm (0.7 in)8.8 mm (0.35 in)22 years20 of 100 (Routine)
26 October 1993Grassdale, AUdaily rain8.6 mm (0.34 in)0.2 mm (0.01 in)24 years11 of 100 (Routine)
27 January 1993Grassdale, AUdaily rain13.0 mm (0.5 in)2.4 mm (0.09 in)12 years10 of 100 (Routine)
21 January 1993Grassdale, AUdaily rain (Tie)4.6 mm (0.18 in)tie37 years3 of 100 (Routine)
22 December 1992Grassdale, AUdaily rain14.6 mm (0.6 in)1.1 mm (0.04 in)19 years10 of 100 (Routine)
21 December 1992Grassdale, AUdaily rain3.0 mm (0.12 in)1.0 mm (0.04 in)8 years6 of 100 (Routine)
6 December 1992Grassdale, AUdaily rain15.0 mm (0.6 in)8.2 mm (0.32 in)9 years20 of 100 (Routine)
3 December 1992Grassdale, AUdaily rain7.2 mm (0.28 in)2.6 mm (0.10 in)37 years19 of 100 (Routine)

Extremes by Year

1954 to 1995
Yearly extremes at Grassdale: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)80.0 mm (3.1 in)199133.4 mm (1.3 in)39
Wettest five days (Rx5day)105.8 mm (4.2 in)198361.0 mm (2.4 in)39
Longest dry spell (CDD)39 days197423 days39

Wettest day (Rx1day)

Wettest day (Rx1day) at Grassdale by year The wettest day of the year at Grassdale, 1954 to 1995. The record is 80.0 mm (3.1 in) in 1991, marked on the chart; the median year is 33.4 mm (1.3 in). 0204060801960197019801990Record: 80.0 mm (3.1 in) in 1991
The wettest day of the year at Grassdale, 1954 to 1995. The record is 80.0 mm (3.1 in) in 1991, marked on the chart; the median year is 33.4 mm (1.3 in).
Wettest day (Rx1day) at Grassdale by year
YearWettest day (Rx1day)
195437.6 mm (1.5 in)
195532.0 mm (1.3 in)
195632.5 mm (1.3 in)
195754.1 mm (2.1 in)
195847.2 mm (1.9 in)
195939.4 mm (1.6 in)
196043.2 mm (1.7 in)
196132.5 mm (1.3 in)
196222.1 mm (0.9 in)
196338.4 mm (1.5 in)
196435.3 mm (1.4 in)
196520.3 mm (0.8 in)
196627.4 mm (1.1 in)
196715.2 mm (0.6 in)
196826.2 mm (1.0 in)
196949.8 mm (2.0 in)
197027.9 mm (1.1 in)
197136.1 mm (1.4 in)
197222.4 mm (0.9 in)
197342.7 mm (1.7 in)
197445.6 mm (1.8 in)
197531.8 mm (1.3 in)
197659.8 mm (2.4 in)
197758.6 mm (2.3 in)
197853.0 mm (2.1 in)
197939.2 mm (1.5 in)
198029.0 mm (1.1 in)
198131.0 mm (1.2 in)
198218.8 mm (0.7 in)
198364.2 mm (2.5 in)
198438.4 mm (1.5 in)
198833.4 mm (1.3 in)
198925.8 mm (1.0 in)
199022.2 mm (0.9 in)
199180.0 mm (3.1 in)
199268.0 mm (2.7 in)
199316.4 mm (0.6 in)
199427.3 mm (1.1 in)
199521.0 mm (0.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Grassdale by year The wettest five days of the year at Grassdale, 1954 to 1995. The record is 105.8 mm (4.2 in) in 1983, marked on the chart; the median year is 61.0 mm (2.4 in). 02550751001251960197019801990Record: 105.8 mm (4.2 in) in 1983
The wettest five days of the year at Grassdale, 1954 to 1995. The record is 105.8 mm (4.2 in) in 1983, marked on the chart; the median year is 61.0 mm (2.4 in).
Wettest five days (Rx5day) at Grassdale by year
YearWettest five days (Rx5day)
195449.8 mm (2.0 in)
195574.2 mm (2.9 in)
195661.0 mm (2.4 in)
195761.8 mm (2.4 in)
195878.3 mm (3.1 in)
195969.9 mm (2.8 in)
196060.7 mm (2.4 in)
196153.4 mm (2.1 in)
196253.4 mm (2.1 in)
196373.2 mm (2.9 in)
196489.1 mm (3.5 in)
196543.0 mm (1.7 in)
196665.0 mm (2.6 in)
196732.8 mm (1.3 in)
196870.2 mm (2.8 in)
196951.3 mm (2.0 in)
197068.8 mm (2.7 in)
197189.7 mm (3.5 in)
197245.6 mm (1.8 in)
197369.9 mm (2.8 in)
197451.4 mm (2.0 in)
197568.6 mm (2.7 in)
197674.6 mm (2.9 in)
197768.0 mm (2.7 in)
197861.6 mm (2.4 in)
197957.8 mm (2.3 in)
198043.8 mm (1.7 in)
198154.4 mm (2.1 in)
198224.8 mm (1.0 in)
1983105.8 mm (4.2 in)
198467.8 mm (2.7 in)
198844.0 mm (1.7 in)
198944.5 mm (1.8 in)
199044.4 mm (1.7 in)
199186.6 mm (3.4 in)
199279.2 mm (3.1 in)
199333.4 mm (1.3 in)
199444.8 mm (1.8 in)
199542.2 mm (1.7 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Grassdale by year The longest dry spell of the year at Grassdale, 1954 to 1995. The record is 39 days in 1974, marked on the chart; the median year is 23 days. 102030401960197019801990Record: 39 days in 1974
The longest dry spell of the year at Grassdale, 1954 to 1995. The record is 39 days in 1974, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Grassdale by year
YearLongest dry spell (CDD)
195425 days
195525 days
195625 days
195718 days
195819 days
195922 days
196020 days
196128 days
196223 days
196326 days
196420 days
196525 days
196615 days
196732 days
196818 days
196931 days
197036 days
197125 days
197236 days
197317 days
197439 days
197520 days
197618 days
197732 days
197815 days
197928 days
198018 days
198122 days
198220 days
198334 days
198425 days
198820 days
198922 days
199016 days
199134 days
199223 days
199317 days
199424 days
199519 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, 1954 to 1992

A day with at least 35.6 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 86.3 mm (3.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Grassdale: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years35.6 mm (1.4 in)
5 years49.0 mm (1.9 in)
10 years57.9 mm (2.3 in)
25 years69.3 mm (2.7 in)
50 years77.8 mm (3.1 in)Longer than the 33 years of record
100 years86.3 mm (3.4 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 1954 to 1992.

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: 80.0 mm (3.1 in) in 1991; 68.0 mm (2.7 in) in 1992; 59.8 mm (2.4 in) in 1976.

Download the Data

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