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Built 2026-10-14 (14 October 2026)

Hornsby Junction (Thornleigh) Weather Records (ASN00066107)

Record envelope, standing records and threshold days for Hornsby Junction (Thornleigh) (ASN00066107), Australia, with 37 years of record.

Key Facts for Hornsby Junction (Thornleigh)

  • Hornsby Junction (Thornleigh) (ASN00066107) is a weather station in Australia at -33.80 latitude and 151.10 longitude, n/a above sea level.
  • The station reports from 1890 to 1926, 37 years of record.
  • 0 records set at Hornsby Junction (Thornleigh) still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Hornsby Junction (Thornleigh) set a daily record precipitation of 64.3 mm (2.5 in) on 29 December 1926.

About the Station

  • Location: Australia, -33.80 latitude, 151.10 longitude.
  • Elevation: n/a.
  • Period of record: 1890 to 1926, 37 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

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

Wettest Day of Each Month

Mar: 197.6 mm (7.8 in)
Record daily precipitation for each month at Hornsby Junction (Thornleigh) The wettest day on record for each calendar month at Hornsby Junction (Thornleigh). The most was 197.6 mm (7.8 in) on 24 March 1914. 050100150200 Jan: 162.6 mm (6.4 in), 13 January 1911 Jan Feb: 131.8 mm (5.2 in), 8 February 1895 Feb Mar: 197.6 mm (7.8 in), 24 March 1914 Mar Apr: 114.3 mm (4.5 in), 28 April 1904 Apr May: 183.4 mm (7.2 in), 6 May 1898 May Jun: 165.4 mm (6.5 in), 27 June 1891 Jun Jul: 143.0 mm (5.6 in), 2 July 1921 Jul Aug: 127.8 mm (5.0 in), 31 August 1906 Aug Sep: 119.6 mm (4.7 in), 20 September 1917 Sep Oct: 80.3 mm (3.2 in), 19 October 1914 Oct Nov: 120.4 mm (4.7 in), 9 November 1917 Nov Dec: 133.9 mm (5.3 in), 10 December 1920 Dec
The wettest day on record for each calendar month at Hornsby Junction (Thornleigh). The most was 197.6 mm (7.8 in) on 24 March 1914.
Record daily precipitation for each month at Hornsby Junction (Thornleigh)
MonthRecord daily precipitation (mm)Date
Jan162.6 mm (6.4 in)13 January 1911
Feb131.8 mm (5.2 in)8 February 1895
Mar197.6 mm (7.8 in)24 March 1914
Apr114.3 mm (4.5 in)28 April 1904
May183.4 mm (7.2 in)6 May 1898
Jun165.4 mm (6.5 in)27 June 1891
Jul143.0 mm (5.6 in)2 July 1921
Aug127.8 mm (5.0 in)31 August 1906
Sep119.6 mm (4.7 in)20 September 1917
Oct80.3 mm (3.2 in)19 October 1914
Nov120.4 mm (4.7 in)9 November 1917
Dec133.9 mm (5.3 in)10 December 1920

Latest Records

20
Latest records at Hornsby Junction (Thornleigh)
DateStationRecordValueBeat old record byOld record stoodSignificance
29 December 1926Hornsby Junction (Thornleigh), AUdaily rain64.3 mm (2.5 in)22.1 mm (0.9 in)7 years17 of 100 (Routine)
28 December 1926Hornsby Junction (Thornleigh), AUdaily rain66.3 mm (2.6 in)30.7 mm (1.2 in)33 years29 of 100 (Routine)
18 December 1926Hornsby Junction (Thornleigh), AUdaily rain40.1 mm (1.6 in)4.3 mm (0.17 in)11 years8 of 100 (Routine)
11 September 1926Hornsby Junction (Thornleigh), AUdaily rain11.4 mm (0.4 in)6.3 mm (0.25 in)12 years10 of 100 (Routine)
9 August 1926Hornsby Junction (Thornleigh), AUdaily rain8.9 mm (0.35 in)2.5 mm (0.10 in)17 years9 of 100 (Routine)
18 May 1926Hornsby Junction (Thornleigh), AUdaily rain18.0 mm (0.7 in)9.1 mm (0.36 in)35 years17 of 100 (Routine)
17 April 1926Hornsby Junction (Thornleigh), AUdaily rain79.8 mm (3.1 in)27.7 mm (1.1 in)15 years23 of 100 (Routine)
16 April 1926Hornsby Junction (Thornleigh), AUdaily rain16.3 mm (0.6 in)1.1 mm (0.04 in)19 years8 of 100 (Routine)
19 November 1925Hornsby Junction (Thornleigh), AUdaily rain83.1 mm (3.3 in)56.9 mm (2.2 in)24 years50 of 100 (Notable)
1 September 1925Hornsby Junction (Thornleigh), AUdaily rain11.2 mm (0.4 in)3.8 mm (0.15 in)23 years11 of 100 (Routine)
20 June 1925Hornsby Junction (Thornleigh), AUdaily rain29.2 mm (1.1 in)16.5 mm (0.6 in)26 years18 of 100 (Routine)
10 May 1925Hornsby Junction (Thornleigh), AUdaily rain101.6 mm (4.0 in)74.9 mm (2.9 in)4 years38 of 100 (Notable)
4 May 1925Hornsby Junction (Thornleigh), AUdaily rain39.1 mm (1.5 in)9.6 mm (0.38 in)6 years8 of 100 (Routine)
3 March 1925Hornsby Junction (Thornleigh), AUdaily rain52.6 mm (2.1 in)17.8 mm (0.7 in)33 years20 of 100 (Routine)
17 January 1925Hornsby Junction (Thornleigh), AUdaily rain29.2 mm (1.1 in)11.4 mm (0.4 in)33 years19 of 100 (Routine)
16 January 1925Hornsby Junction (Thornleigh), AUdaily rain72.9 mm (2.9 in)48.8 mm (1.9 in)29 years36 of 100 (Notable)
7 December 1924Hornsby Junction (Thornleigh), AUdaily rain38.1 mm (1.5 in)1.5 mm (0.06 in)21 years9 of 100 (Routine)
12 November 1924Hornsby Junction (Thornleigh), AUdaily rain13.0 mm (0.5 in)5.9 mm (0.23 in)32 years17 of 100 (Routine)
8 November 1924Hornsby Junction (Thornleigh), AUdaily rain20.3 mm (0.8 in)12.2 mm (0.5 in)7 years15 of 100 (Routine)
7 November 1924Hornsby Junction (Thornleigh), AUdaily rain10.2 mm (0.4 in)3.1 mm (0.12 in)24 years12 of 100 (Routine)

Extremes by Year

1890 to 1926
Yearly extremes at Hornsby Junction (Thornleigh): the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)197.6 mm (7.8 in)1914116.8 mm (4.6 in)37
Wettest five days (Rx5day)483.4 mm (19.0 in)1920182.9 mm (7.2 in)37
Longest dry spell (CDD)46 days190623 days37

Wettest day (Rx1day)

Wettest day (Rx1day) at Hornsby Junction (Thornleigh) by year The wettest day of the year at Hornsby Junction (Thornleigh), 1890 to 1926. The record is 197.6 mm (7.8 in) in 1914, marked on the chart; the median year is 116.8 mm (4.6 in). 0501001502001890190019101920Record: 197.6 mm (7.8 in) in 1914
The wettest day of the year at Hornsby Junction (Thornleigh), 1890 to 1926. The record is 197.6 mm (7.8 in) in 1914, marked on the chart; the median year is 116.8 mm (4.6 in).
Wettest day (Rx1day) at Hornsby Junction (Thornleigh) by year
YearWettest day (Rx1day)
1890133.4 mm (5.3 in)
1891165.4 mm (6.5 in)
1892119.4 mm (4.7 in)
1893120.1 mm (4.7 in)
189490.4 mm (3.6 in)
1895131.8 mm (5.2 in)
189655.9 mm (2.2 in)
1897143.5 mm (5.6 in)
1898183.4 mm (7.2 in)
189968.1 mm (2.7 in)
1900137.2 mm (5.4 in)
190154.6 mm (2.1 in)
190273.2 mm (2.9 in)
190372.9 mm (2.9 in)
1904132.1 mm (5.2 in)
190596.5 mm (3.8 in)
1906127.8 mm (5.0 in)
190780.5 mm (3.2 in)
1908124.5 mm (4.9 in)
190971.1 mm (2.8 in)
1910107.2 mm (4.2 in)
1911162.6 mm (6.4 in)
191277.5 mm (3.1 in)
1913129.3 mm (5.1 in)
1914197.6 mm (7.8 in)
191571.1 mm (2.8 in)
191665.0 mm (2.6 in)
1917120.4 mm (4.7 in)
191877.2 mm (3.0 in)
1919116.8 mm (4.6 in)
1920133.9 mm (5.3 in)
1921143.0 mm (5.6 in)
1922128.3 mm (5.1 in)
192339.4 mm (1.6 in)
192467.3 mm (2.6 in)
1925101.6 mm (4.0 in)
192679.8 mm (3.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Hornsby Junction (Thornleigh) by year The wettest five days of the year at Hornsby Junction (Thornleigh), 1890 to 1926. The record is 483.4 mm (19.0 in) in 1920, marked on the chart; the median year is 182.9 mm (7.2 in). 02004006001890190019101920Record: 483.4 mm (19.0 in) in 1920
The wettest five days of the year at Hornsby Junction (Thornleigh), 1890 to 1926. The record is 483.4 mm (19.0 in) in 1920, marked on the chart; the median year is 182.9 mm (7.2 in).
Wettest five days (Rx5day) at Hornsby Junction (Thornleigh) by year
YearWettest five days (Rx5day)
1890236.8 mm (9.3 in)
1891252.3 mm (9.9 in)
1892335.6 mm (13.2 in)
1893178.3 mm (7.0 in)
1894121.4 mm (4.8 in)
1895192.7 mm (7.6 in)
1896101.9 mm (4.0 in)
1897223.3 mm (8.8 in)
1898203.3 mm (8.0 in)
1899182.9 mm (7.2 in)
1900228.3 mm (9.0 in)
190191.0 mm (3.6 in)
1902100.4 mm (4.0 in)
1903126.0 mm (5.0 in)
1904289.6 mm (11.4 in)
1905150.3 mm (5.9 in)
1906159.1 mm (6.3 in)
1907200.3 mm (7.9 in)
1908221.8 mm (8.7 in)
1909112.5 mm (4.4 in)
1910221.2 mm (8.7 in)
1911253.7 mm (10.0 in)
1912170.5 mm (6.7 in)
1913251.5 mm (9.9 in)
1914413.0 mm (16.3 in)
1915163.1 mm (6.4 in)
1916212.9 mm (8.4 in)
1917178.7 mm (7.0 in)
1918115.8 mm (4.6 in)
1919161.5 mm (6.4 in)
1920483.4 mm (19.0 in)
1921208.0 mm (8.2 in)
1922191.2 mm (7.5 in)
192339.4 mm (1.6 in)
1924160.8 mm (6.3 in)
1925177.5 mm (7.0 in)
1926162.9 mm (6.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Hornsby Junction (Thornleigh) by year The longest dry spell of the year at Hornsby Junction (Thornleigh), 1890 to 1926. The record is 46 days in 1906, marked on the chart; the median year is 23 days. 010203040501890190019101920Record: 46 days in 1906
The longest dry spell of the year at Hornsby Junction (Thornleigh), 1890 to 1926. The record is 46 days in 1906, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Hornsby Junction (Thornleigh) by year
YearLongest dry spell (CDD)
189021 days
189111 days
189218 days
189318 days
189424 days
189529 days
189619 days
189723 days
189828 days
189922 days
190021 days
190122 days
190227 days
190322 days
190423 days
190520 days
190646 days
190738 days
190825 days
190921 days
191019 days
191133 days
191223 days
191326 days
191419 days
191526 days
191620 days
191734 days
191841 days
191926 days
192029 days
192124 days
192231 days
19239 days
192420 days
192526 days
192625 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

32 years, 1891 to 1925

A day with at least 108.4 mm (4.3 in) of rain is expected about once in 2 years. A day with at least 210.5 mm (8.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Hornsby Junction (Thornleigh): the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years108.4 mm (4.3 in)
5 years143.0 mm (5.6 in)
10 years162.6 mm (6.4 in)
25 years184.2 mm (7.3 in)
50 years198.1 mm (7.8 in)Longer than the 32 years of record
100 years210.5 mm (8.3 in)Longer than the 32 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, 32 years of values from 1891 to 1925.

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: 197.6 mm (7.8 in) in 1914; 183.4 mm (7.2 in) in 1898; 165.4 mm (6.5 in) in 1891.

Download the Data

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