Built 2026-10-15 (15 October 2026)

Helidon Post Office Weather Records (ASN00040096)

Record envelope, standing records and threshold days for Helidon Post Office (ASN00040096), Australia, with 156 years of record.

Key Facts for Helidon Post Office

  • Helidon Post Office (ASN00040096) is a weather station in Australia at -27.55 latitude and 152.12 longitude, 155 m (509 ft) above sea level.
  • The station reports from 1871 to 2026, 156 years of record.
  • 0 records set at Helidon Post Office still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Helidon Post Office set a daily record precipitation of 23.4 mm (0.9 in) on 13 November 2024.

About the Station

  • Location: Australia, -27.55 latitude, 152.12 longitude.
  • Elevation: 155 m (509 ft).
  • Period of record: 1871 to 2026, 156 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

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

Wettest Day of Each Month

Mar: 186.7 mm (7.4 in)
Record daily precipitation for each month at Helidon Post Office The wettest day on record for each calendar month at Helidon Post Office. The most was 186.7 mm (7.4 in) on 10 March 1890. 050100150200 Jan: 156.4 mm (6.2 in), 28 January 2013 Jan Feb: 141.0 mm (5.6 in), 9 February 1999 Feb Mar: 186.7 mm (7.4 in), 10 March 1890 Mar Apr: 102.9 mm (4.1 in), 30 April 1955 Apr May: 170.8 mm (6.7 in), 3 May 1996 May Jun: 113.0 mm (4.4 in), 1 June 1903 Jun Jul: 159.5 mm (6.3 in), 20 July 1965 Jul Aug: 70.1 mm (2.8 in), 27 August 1969 Aug Sep: 63.6 mm (2.5 in), 1 September 1975 Sep Oct: 132.6 mm (5.2 in), 27 October 1952 Oct Nov: 139.0 mm (5.5 in), 24 November 2011 Nov Dec: 113.3 mm (4.5 in), 18 December 1948 Dec
The wettest day on record for each calendar month at Helidon Post Office. The most was 186.7 mm (7.4 in) on 10 March 1890.
Record daily precipitation for each month at Helidon Post Office
MonthRecord daily precipitation (mm)Date
Jan156.4 mm (6.2 in)28 January 2013
Feb141.0 mm (5.6 in)9 February 1999
Mar186.7 mm (7.4 in)10 March 1890
Apr102.9 mm (4.1 in)30 April 1955
May170.8 mm (6.7 in)3 May 1996
Jun113.0 mm (4.4 in)1 June 1903
Jul159.5 mm (6.3 in)20 July 1965
Aug70.1 mm (2.8 in)27 August 1969
Sep63.6 mm (2.5 in)1 September 1975
Oct132.6 mm (5.2 in)27 October 1952
Nov139.0 mm (5.5 in)24 November 2011
Dec113.3 mm (4.5 in)18 December 1948

Latest Records

20
Latest records at Helidon Post Office
DateStationRecordValueBeat old record byOld record stoodSignificance
13 November 2024Helidon Post Office, AUdaily rain23.4 mm (0.9 in)1.4 mm (0.06 in)40 years20 of 100 (Routine)
14 August 2024Helidon Post Office, AUdaily rain23.0 mm (0.9 in)5.5 mm (0.22 in)124 years20 of 100 (Routine)
21 November 2023Helidon Post Office, AUdaily rain66.0 mm (2.6 in)30.6 mm (1.2 in)28 years38 of 100 (Notable)
12 May 2021Helidon Post Office, AUdaily rain36.5 mm (1.4 in)16.9 mm (0.7 in)80 years44 of 100 (Notable)
24 March 2021Helidon Post Office, AUdaily rain41.0 mm (1.6 in)16.6 mm (0.7 in)90 years46 of 100 (Notable)
27 February 2018Helidon Post Office, AUdaily rain33.0 mm (1.3 in)2.0 mm (0.08 in)48 years25 of 100 (Routine)
30 March 2017Helidon Post Office, AUdaily rain51.2 mm (2.0 in)15.9 mm (0.6 in)112 years49 of 100 (Notable)
3 January 2017Helidon Post Office, AUdaily rain66.5 mm (2.6 in)8.6 mm (0.34 in)58 years31 of 100 (Routine)
27 March 2015Helidon Post Office, AUdaily rain35.2 mm (1.4 in)3.2 mm (0.13 in)6 years13 of 100 (Routine)
17 August 2014Helidon Post Office, AUdaily rain23.5 mm (0.9 in)13.1 mm (0.5 in)32 years20 of 100 (Routine)
28 March 2014Helidon Post Office, AUdaily rain96.4 mm (3.8 in)41.8 mm (1.6 in)84 years60 of 100 (Major)
26 February 2013Helidon Post Office, AUdaily rain79.0 mm (3.1 in)20.6 mm (0.8 in)57 years38 of 100 (Notable)
28 January 2013Helidon Post Office, AUmonthly rain156.4 mm (6.2 in)29.4 mm (1.2 in)66 years54 of 100 (Notable)
18 November 2012Helidon Post Office, AUdaily rain81.0 mm (3.2 in)13.0 mm (0.5 in)2 years18 of 100 (Routine)
19 July 2012Helidon Post Office, AUdaily rain19.4 mm (0.8 in)1.1 mm (0.04 in)44 years20 of 100 (Routine)
28 June 2012Helidon Post Office, AUdaily rain32.0 mm (1.3 in)7.9 mm (0.31 in)83 years39 of 100 (Notable)
3 June 2012Helidon Post Office, AUdaily rain40.0 mm (1.6 in)10.0 mm (0.4 in)4 years17 of 100 (Routine)
11 December 2011Helidon Post Office, AUdaily rain40.6 mm (1.6 in)0.6 mm (0.02 in)24 years17 of 100 (Routine)
24 November 2011Helidon Post Office, AUmonthly rain139.0 mm (5.5 in)10.6 mm (0.4 in)3 years27 of 100 (Routine)
8 October 2011Helidon Post Office, AUdaily rain59.0 mm (2.3 in)23.9 mm (0.9 in)104 years58 of 100 (Notable)

Extremes by Year

1871 to 2026
Yearly extremes at Helidon Post Office: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)186.7 mm (7.4 in)189067.0 mm (2.6 in)143
Wettest five days (Rx5day)555.4 mm (21.9 in)1996106.4 mm (4.2 in)143
Longest dry spell (CDD)92 days189534 days143

Wettest day (Rx1day)

Wettest day (Rx1day) at Helidon Post Office by year The wettest day of the year at Helidon Post Office, 1871 to 2026. The record is 186.7 mm (7.4 in) in 1890, marked on the chart; the median year is 67.0 mm (2.6 in). 05010015020018801900192019401960198020002020Record: 186.7 mm (7.4 in) in 1890
The wettest day of the year at Helidon Post Office, 1871 to 2026. The record is 186.7 mm (7.4 in) in 1890, marked on the chart; the median year is 67.0 mm (2.6 in).
Wettest day (Rx1day) at Helidon Post Office by year
YearWettest day (Rx1day)
18710.0 mm (0.00 in)
18760.0 mm (0.00 in)
18770.0 mm (0.00 in)
18780.0 mm (0.00 in)
18800.0 mm (0.00 in)
18872.3 mm (0.09 in)
188830.5 mm (1.2 in)
1890186.7 mm (7.4 in)
189183.1 mm (3.3 in)
1892129.3 mm (5.1 in)
1893109.7 mm (4.3 in)
189494.7 mm (3.7 in)
1895101.1 mm (4.0 in)
189650.8 mm (2.0 in)
189778.7 mm (3.1 in)
189846.2 mm (1.8 in)
189969.9 mm (2.8 in)
1900100.1 mm (3.9 in)
190193.7 mm (3.7 in)
190226.7 mm (1.1 in)
1903113.0 mm (4.4 in)
190440.6 mm (1.6 in)
190555.4 mm (2.2 in)
190671.6 mm (2.8 in)
190745.2 mm (1.8 in)
1908140.2 mm (5.5 in)
190956.9 mm (2.2 in)
1910101.3 mm (4.0 in)
1911109.0 mm (4.3 in)
191256.4 mm (2.2 in)
191374.2 mm (2.9 in)
191487.4 mm (3.4 in)
191550.8 mm (2.0 in)
191643.2 mm (1.7 in)
191780.5 mm (3.2 in)
191830.7 mm (1.2 in)
191940.9 mm (1.6 in)
192064.8 mm (2.6 in)
192160.5 mm (2.4 in)
192263.5 mm (2.5 in)
192339.6 mm (1.6 in)
192445.7 mm (1.8 in)
192564.5 mm (2.5 in)
192661.7 mm (2.4 in)
192759.9 mm (2.4 in)
192855.9 mm (2.2 in)
192954.6 mm (2.1 in)
193059.2 mm (2.3 in)
193185.3 mm (3.4 in)
193253.3 mm (2.1 in)
1933115.3 mm (4.5 in)
193466.5 mm (2.6 in)
193553.8 mm (2.1 in)
193646.2 mm (1.8 in)
193788.9 mm (3.5 in)
193865.5 mm (2.6 in)
193964.5 mm (2.5 in)
194055.4 mm (2.2 in)
194177.2 mm (3.0 in)
1942131.6 mm (5.2 in)
194377.0 mm (3.0 in)
194494.7 mm (3.7 in)
194549.0 mm (1.9 in)
1946125.5 mm (4.9 in)
1947127.0 mm (5.0 in)
1948113.3 mm (4.5 in)
194981.3 mm (3.2 in)
195098.0 mm (3.9 in)
195192.2 mm (3.6 in)
1952132.6 mm (5.2 in)
195342.2 mm (1.7 in)
195482.3 mm (3.2 in)
1955102.9 mm (4.1 in)
1956108.5 mm (4.3 in)
195736.8 mm (1.4 in)
195883.3 mm (3.3 in)
1959111.3 mm (4.4 in)
196077.2 mm (3.0 in)
196156.6 mm (2.2 in)
196243.4 mm (1.7 in)
196354.4 mm (2.1 in)
196480.5 mm (3.2 in)
1965159.5 mm (6.3 in)
196685.9 mm (3.4 in)
196776.7 mm (3.0 in)
196879.2 mm (3.1 in)
1969114.6 mm (4.5 in)
197079.2 mm (3.1 in)
1971106.4 mm (4.2 in)
197269.9 mm (2.8 in)
197353.6 mm (2.1 in)
1974127.0 mm (5.0 in)
197568.0 mm (2.7 in)
1976100.0 mm (3.9 in)
197763.0 mm (2.5 in)
197859.0 mm (2.3 in)
197967.0 mm (2.6 in)
198042.0 mm (1.7 in)
1981116.0 mm (4.6 in)
198266.0 mm (2.6 in)
198379.6 mm (3.1 in)
198463.0 mm (2.5 in)
198548.8 mm (1.9 in)
198671.0 mm (2.8 in)
1987108.6 mm (4.3 in)
1988123.6 mm (4.9 in)
198959.0 mm (2.3 in)
199092.2 mm (3.6 in)
199163.2 mm (2.5 in)
199273.0 mm (2.9 in)
199349.2 mm (1.9 in)
199467.0 mm (2.6 in)
199581.0 mm (3.2 in)
1996170.8 mm (6.7 in)
199747.6 mm (1.9 in)
199856.6 mm (2.2 in)
1999141.0 mm (5.6 in)
200039.0 mm (1.5 in)
2001113.0 mm (4.4 in)
200236.0 mm (1.4 in)
200348.0 mm (1.9 in)
200476.0 mm (3.0 in)
200566.6 mm (2.6 in)
200653.0 mm (2.1 in)
200767.0 mm (2.6 in)
2008128.4 mm (5.1 in)
200969.0 mm (2.7 in)
201068.0 mm (2.7 in)
2011139.0 mm (5.5 in)
201281.0 mm (3.2 in)
2013156.4 mm (6.2 in)
201496.4 mm (3.8 in)
2015108.8 mm (4.3 in)
201636.2 mm (1.4 in)
201766.5 mm (2.6 in)
201857.0 mm (2.2 in)
201932.6 mm (1.3 in)
202064.0 mm (2.5 in)
202142.0 mm (1.7 in)
202366.0 mm (2.6 in)
202449.0 mm (1.9 in)
202565.0 mm (2.6 in)
202621.8 mm (0.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Helidon Post Office by year The wettest five days of the year at Helidon Post Office, 1871 to 2026. The record is 555.4 mm (21.9 in) in 1996, marked on the chart; the median year is 106.4 mm (4.2 in). 020040060018801900192019401960198020002020Record: 555.4 mm (21.9 in) in 1996
The wettest five days of the year at Helidon Post Office, 1871 to 2026. The record is 555.4 mm (21.9 in) in 1996, marked on the chart; the median year is 106.4 mm (4.2 in).
Wettest five days (Rx5day) at Helidon Post Office by year
YearWettest five days (Rx5day)
18710.0 mm (0.00 in)
18760.0 mm (0.00 in)
18770.0 mm (0.00 in)
18780.0 mm (0.00 in)
18800.0 mm (0.00 in)
18872.8 mm (0.11 in)
188864.1 mm (2.5 in)
1890239.5 mm (9.4 in)
1891179.7 mm (7.1 in)
1892162.4 mm (6.4 in)
1893155.9 mm (6.1 in)
1894138.0 mm (5.4 in)
1895137.6 mm (5.4 in)
189695.6 mm (3.8 in)
1897124.3 mm (4.9 in)
1898120.7 mm (4.8 in)
189993.3 mm (3.7 in)
1900109.1 mm (4.3 in)
1901105.9 mm (4.2 in)
190243.5 mm (1.7 in)
1903113.3 mm (4.5 in)
190498.5 mm (3.9 in)
190599.3 mm (3.9 in)
1906105.4 mm (4.1 in)
190784.9 mm (3.3 in)
1908239.6 mm (9.4 in)
190988.6 mm (3.5 in)
1910169.8 mm (6.7 in)
1911176.8 mm (7.0 in)
191298.3 mm (3.9 in)
191385.1 mm (3.4 in)
1914148.3 mm (5.8 in)
1915148.3 mm (5.8 in)
191678.5 mm (3.1 in)
1917106.5 mm (4.2 in)
191856.1 mm (2.2 in)
191942.0 mm (1.7 in)
192085.8 mm (3.4 in)
1921154.9 mm (6.1 in)
1922136.1 mm (5.4 in)
192353.2 mm (2.1 in)
192465.6 mm (2.6 in)
1925132.3 mm (5.2 in)
192675.4 mm (3.0 in)
1927179.3 mm (7.1 in)
1928158.6 mm (6.2 in)
192988.2 mm (3.5 in)
193080.2 mm (3.2 in)
1931202.9 mm (8.0 in)
193253.3 mm (2.1 in)
1933136.7 mm (5.4 in)
1934113.0 mm (4.4 in)
193580.8 mm (3.2 in)
193683.8 mm (3.3 in)
1937237.0 mm (9.3 in)
1938128.0 mm (5.0 in)
1939128.8 mm (5.1 in)
194085.9 mm (3.4 in)
1941121.1 mm (4.8 in)
1942207.5 mm (8.2 in)
1943125.7 mm (4.9 in)
1944111.6 mm (4.4 in)
194591.7 mm (3.6 in)
1946224.6 mm (8.8 in)
1947162.8 mm (6.4 in)
1948173.7 mm (6.8 in)
194987.1 mm (3.4 in)
1950120.3 mm (4.7 in)
1951160.8 mm (6.3 in)
1952156.7 mm (6.2 in)
195372.2 mm (2.8 in)
1954169.5 mm (6.7 in)
1955127.3 mm (5.0 in)
1956148.7 mm (5.9 in)
195759.5 mm (2.3 in)
1958112.8 mm (4.4 in)
1959147.4 mm (5.8 in)
196099.0 mm (3.9 in)
196190.5 mm (3.6 in)
196267.7 mm (2.7 in)
1963100.4 mm (4.0 in)
1964106.4 mm (4.2 in)
1965191.8 mm (7.6 in)
1966185.8 mm (7.3 in)
1967163.6 mm (6.4 in)
1968219.6 mm (8.6 in)
1969123.0 mm (4.8 in)
1970144.5 mm (5.7 in)
1971133.9 mm (5.3 in)
1972152.2 mm (6.0 in)
197395.3 mm (3.8 in)
1974275.0 mm (10.8 in)
1975155.0 mm (6.1 in)
1976159.0 mm (6.3 in)
1977102.8 mm (4.0 in)
1978103.6 mm (4.1 in)
197986.0 mm (3.4 in)
198079.0 mm (3.1 in)
1981162.0 mm (6.4 in)
198296.6 mm (3.8 in)
1983142.0 mm (5.6 in)
1984117.6 mm (4.6 in)
198564.6 mm (2.5 in)
198685.8 mm (3.4 in)
1987143.2 mm (5.6 in)
1988155.0 mm (6.1 in)
1989126.0 mm (5.0 in)
1990134.4 mm (5.3 in)
199194.4 mm (3.7 in)
199285.0 mm (3.3 in)
199364.0 mm (2.5 in)
199478.0 mm (3.1 in)
1995209.8 mm (8.3 in)
1996555.4 mm (21.9 in)
199794.4 mm (3.7 in)
199888.4 mm (3.5 in)
1999198.4 mm (7.8 in)
200045.3 mm (1.8 in)
2001279.0 mm (11.0 in)
200253.0 mm (2.1 in)
200390.1 mm (3.5 in)
2004136.0 mm (5.4 in)
200566.6 mm (2.6 in)
200697.8 mm (3.9 in)
200780.6 mm (3.2 in)
2008214.0 mm (8.4 in)
2009103.0 mm (4.1 in)
2010121.6 mm (4.8 in)
2011217.9 mm (8.6 in)
201287.2 mm (3.4 in)
2013339.8 mm (13.4 in)
2014156.0 mm (6.1 in)
2015129.7 mm (5.1 in)
201650.8 mm (2.0 in)
201791.2 mm (3.6 in)
201882.0 mm (3.2 in)
201949.0 mm (1.9 in)
202072.6 mm (2.9 in)
202183.0 mm (3.3 in)
202332.0 mm (1.3 in)
202449.0 mm (1.9 in)
202586.7 mm (3.4 in)
202623.8 mm (0.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Helidon Post Office by year The longest dry spell of the year at Helidon Post Office, 1871 to 2026. The record is 92 days in 1895, marked on the chart; the median year is 34 days. 02040608010018801900192019401960198020002020Record: 92 days in 1895
The longest dry spell of the year at Helidon Post Office, 1871 to 2026. The record is 92 days in 1895, marked on the chart; the median year is 34 days.
Longest dry spell (CDD) at Helidon Post Office by year
YearLongest dry spell (CDD)
187131 days
187661 days
187731 days
187831 days
188031 days
188717 days
188869 days
189019 days
189131 days
189224 days
189332 days
189462 days
189592 days
189635 days
189762 days
189830 days
189922 days
190044 days
190131 days
190246 days
190325 days
190439 days
190533 days
190644 days
190742 days
190833 days
190927 days
191032 days
191153 days
191250 days
191348 days
191437 days
191536 days
191649 days
191746 days
191850 days
191942 days
192023 days
192121 days
192240 days
192334 days
192426 days
192525 days
192638 days
192734 days
192830 days
192938 days
193023 days
193124 days
193248 days
193322 days
193428 days
193543 days
193636 days
193735 days
193830 days
193954 days
194045 days
194145 days
194225 days
194331 days
194434 days
194529 days
194647 days
194766 days
194835 days
194934 days
195031 days
195165 days
195236 days
195354 days
195425 days
195518 days
195654 days
195759 days
195838 days
195933 days
196029 days
196126 days
196245 days
196352 days
196425 days
196533 days
196634 days
196738 days
196834 days
196926 days
197049 days
197137 days
197240 days
197329 days
197431 days
197549 days
197651 days
197762 days
197821 days
197933 days
198044 days
198140 days
198230 days
198322 days
198428 days
198532 days
198629 days
198734 days
198831 days
198927 days
199034 days
199176 days
199223 days
199345 days
199458 days
199538 days
199640 days
199726 days
199831 days
199925 days
200038 days
200132 days
200263 days
200334 days
200463 days
200560 days
200629 days
200749 days
200825 days
200964 days
201025 days
201131 days
201234 days
201329 days
201423 days
201528 days
201623 days
201749 days
201829 days
201950 days
202044 days
202119 days
202356 days
202437 days
202531 days
202649 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

120 years, 1894 to 2023

A day with at least 71.0 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 178.5 mm (7.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Helidon Post Office: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years71.0 mm (2.8 in)
5 years98.0 mm (3.9 in)
10 years116.6 mm (4.6 in)
25 years140.8 mm (5.5 in)
50 years159.4 mm (6.3 in)
100 years178.5 mm (7.0 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 120 years of values from 1894 to 2023.

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: 170.8 mm (6.7 in) in 1996; 159.5 mm (6.3 in) in 1965; 156.4 mm (6.2 in) in 2013.

Download the Data

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