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Built 2026-10-18 (18 October 2026)

Hakalau 142 Threshold Days by Year

9 fixed thresholds counted per year at Hakalau 142 (USC00510905): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hakalau 142 Thresholds

  • Hakalau 142: days with 10 mm (0.39 in) or more of precipitation in 53 years, most in 1911 with 134.
  • Hakalau 142: days with 25 mm (0.98 in) or more of precipitation in 53 years, most in 1918 with 66.
  • Hakalau 142: days with 50 mm (1.97 in) or more of precipitation in 53 years, most in 1923 with 32.
  • Hakalau 142: days with 100 mm (3.94 in) or more of precipitation in 50 years, most in 1923 with 11.
  • 9 fixed thresholds have at least one qualifying day at Hakalau 142.
20 years with a qualifying day
Days at or above 30 C (86 F) per year at Hakalau 142 Days per year at Hakalau 142 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 115 in 1935. 0501001501907: 351908: 221909: 21910: 61912: 11914: 41915: 31917: 21920: 11921: 211922: 11926: 21929: 11930: 21932: 21934: 21935: 1151936: 971937: 991938: 1091907190919121915192019221929193219351937
Days per year at Hakalau 142 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 115 in 1935.
Days at or above 30 C (86 F) per year at Hakalau 142
YearDaysDecade average
19073519.7
19082219.7
1909219.7
191063.2
191213.2
191443.2
191533.2
191723.2
192015.2
1921215.2
192215.2
192625.2
192915.2
1930260.9
1932260.9
1934260.9
193511560.9
19369760.9
19379960.9
193810960.9
First to last qualifying date each year at Hakalau 142 For each year, a bar from the first to the last day at Hakalau 142 meeting 30 C (86 F). 1907: 29 January 1907 to 28 December 19071908: 18 May 1908 to 25 November 19081909: 24 February 1909 to 17 August 19091910: 20 August 1910 to 8 November 19101912: 26 August 1912 to 26 August 19121914: 13 August 1914 to 19 December 19141915: 13 January 1915 to 17 October 19151917: 20 September 1917 to 22 September 19171920: 11 July 1920 to 11 July 19201921: 19 April 1921 to 21 July 19211922: 27 July 1922 to 27 July 19221926: 31 May 1926 to 26 July 19261929: 10 August 1929 to 10 August 19291930: 18 February 1930 to 13 April 19301932: 28 September 1932 to 17 December 19321934: 12 February 1934 to 27 December 19341935: 12 January 1935 to 13 November 19351936: 31 January 1936 to 17 November 19361937: 2 March 1937 to 12 December 19371938: 20 January 1938 to 3 December 19381907191019151921192919341937JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Hakalau 142 meeting 30 C (86 F).
First to last qualifying date each year at Hakalau 142
YearFirst dateLast date
19071907-01-291907-12-28
19081908-05-181908-11-25
19091909-02-241909-08-17
19101910-08-201910-11-08
19121912-08-261912-08-26
19141914-08-131914-12-19
19151915-01-131915-10-17
19171917-09-201917-09-22
19201920-07-111920-07-11
19211921-04-191921-07-21
19221922-07-271922-07-27
19261926-05-311926-07-26
19291929-08-101929-08-10
19301930-02-181930-04-13
19321932-09-281932-12-17
19341934-02-121934-12-27
19351935-01-121935-11-13
19361936-01-311936-11-17
19371937-03-021937-12-12
19381938-01-201938-12-03

Every Fixed Threshold

Fixed thresholds at Hakalau 142
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days201151935109
90 F (32.2 C): Days517193817
20 C (68 F): Tropical nights (min312181929154
25 C (77 F): Days with min3219382
10 mm (0.39 in): Days with 10 mm or more rain53134191164
25 mm (0.98 in): Days with 25 mm or more rain5366191829
50 mm (1.97 in): Days with 50 mm or more rain5332192312
100 mm (3.94 in): Days with 100 mm or more rain501119231
200 mm (7.87 in): Days with 200 mm or more rain20319151

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 Hakalau 142 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

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