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Built 2026-10-19 (19 October 2026)

Manly Vale (Manly Dam) Threshold Days by Year (ASN00066153)

4 fixed thresholds counted per year at Manly Vale (Manly Dam) (ASN00066153): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Manly Vale (Manly Dam) Thresholds

  • Manly Vale (Manly Dam): days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 1913 with 43.
  • Manly Vale (Manly Dam): days with 25 mm (0.98 in) or more of precipitation in 28 years, most in 1913 with 19.
  • Manly Vale (Manly Dam): days with 50 mm (1.97 in) or more of precipitation in 27 years, most in 1914 with 8.
  • Manly Vale (Manly Dam): days with 100 mm (3.94 in) or more of precipitation in 11 years, most in 1998 with 3.
  • 4 fixed thresholds have at least one qualifying day at Manly Vale (Manly Dam).
28 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Manly Vale (Manly Dam) Days per year at Manly Vale (Manly Dam) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 43 in 1913. 02040601907: 241908: 411909: 271910: 301911: 401912: 311913: 431914: 421915: 271916: 321917: 361918: 361919: 381920: 291921: 381922: 351923: 331924: 331969: 361997: 311998: 411999: 392000: 272001: 342002: 242003: 372004: 272005: 201907191019131916191919221969199920022005
Days per year at Manly Vale (Manly Dam) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 43 in 1913.
Days with 10 mm (0.39 in) or more of precipitation per year at Manly Vale (Manly Dam)
YearDaysDecade average
19072430.7
19084130.7
19092730.7
19103035.5
19114035.5
19123135.5
19134335.5
19144235.5
19152735.5
19163235.5
19173635.5
19183635.5
19193835.5
19202933.6
19213833.6
19223533.6
19233333.6
19243333.6
19693636
19973137
19984137
19993937
20002728.2
20013428.2
20022428.2
20033728.2
20042728.2
20052028.2
First to last qualifying date each year at Manly Vale (Manly Dam) For each year, a bar from the first to the last day at Manly Vale (Manly Dam) meeting 10 mm (0.39 in). 1907: 27 January 1907 to 18 December 19071908: 30 January 1908 to 22 December 19081909: 1 February 1909 to 26 December 19091910: 12 January 1910 to 19 December 19101911: 12 January 1911 to 5 December 19111912: 6 January 1912 to 13 December 19121913: 4 January 1913 to 4 October 19131914: 28 January 1914 to 31 December 19141915: 9 January 1915 to 18 December 19151916: 29 January 1916 to 14 December 19161917: 3 January 1917 to 9 December 19171918: 8 January 1918 to 29 November 19181919: 5 January 1919 to 29 December 19191920: 4 January 1920 to 13 December 19201921: 4 January 1921 to 31 December 19211922: 3 January 1922 to 7 December 19221923: 26 January 1923 to 27 December 19231924: 21 January 1924 to 28 December 19241969: 3 January 1969 to 9 December 19691997: 26 January 1997 to 16 December 19971998: 6 January 1998 to 15 December 19981999: 22 January 1999 to 29 December 19992000: 2 January 2000 to 2 December 20002001: 19 January 2001 to 15 December 20012002: 7 January 2002 to 11 December 20022003: 22 February 2003 to 13 December 20032004: 16 January 2004 to 14 December 20042005: 2 February 2005 to 29 November 20051907191119151919192319982002JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Manly Vale (Manly Dam) meeting 10 mm (0.39 in).
First to last qualifying date each year at Manly Vale (Manly Dam)
YearFirst dateLast date
19071907-01-271907-12-18
19081908-01-301908-12-22
19091909-02-011909-12-26
19101910-01-121910-12-19
19111911-01-121911-12-05
19121912-01-061912-12-13
19131913-01-041913-10-04
19141914-01-281914-12-31
19151915-01-091915-12-18
19161916-01-291916-12-14
19171917-01-031917-12-09
19181918-01-081918-11-29
19191919-01-051919-12-29
19201920-01-041920-12-13
19211921-01-041921-12-31
19221922-01-031922-12-07
19231923-01-261923-12-27
19241924-01-211924-12-28
19691969-01-031969-12-09
19971997-01-261997-12-16
19981998-01-061998-12-15
19991999-01-221999-12-29
20002000-01-022000-12-02
20012001-01-192001-12-15
20022002-01-072002-12-11
20032003-02-222003-12-13
20042004-01-162004-12-14
20052005-02-022005-11-29

Every Fixed Threshold

Fixed thresholds at Manly Vale (Manly Dam)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2843191320
25 mm (0.98 in): Days with 25 mm or more rain281919136
50 mm (1.97 in): Days with 50 mm or more rain27819141
100 mm (3.94 in): Days with 100 mm or more rain11319981

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1907.

Download the Data

  • Data for Manly Vale (Manly Dam) 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).