Haleakala Rch 432 Weather Records (USC00510999)

Record envelope, standing records and threshold days for Haleakala Rch 432 (USC00510999), Hawaii, United States, with 121 years of record.

Key Facts for Haleakala Rch 432

Haleakala Rch 432 (USC00510999) is a weather station in Hawaii, United States at 20.83 latitude and -156.32 longitude, 576 m (1,890 ft) above sea level.
The station reports from 1905 to 2025, 121 years of record.
0 records set at Haleakala Rch 432 still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Haleakala Rch 432 set a daily record precipitation of 121.9 mm (4.8 in) on 23 April 2025.

About the Station

Location: Hawaii, United States, 20.83 latitude, -156.32 longitude.
Elevation: 576 m (1,890 ft).
Period of record: 1905 to 2025, 121 years.
Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Haleakala Rch 432. 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 Haleakala Rch 432, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

0 standing records

0 records at Haleakala Rch 432 still stand.

Wettest Day of Each Month

Jan: 359.9 mm (14.2 in)

The wettest day on record for each calendar month at Haleakala Rch 432. The most was 359.9 mm (14.2 in) on 15 January 1923.

Record daily precipitation for each month at Haleakala Rch 432
Month	Record daily precipitation (mm)	Date
Jan	359.9 mm (14.2 in)	15 January 1923
Feb	185.4 mm (7.3 in)	6 February 1989
Mar	211.1 mm (8.3 in)	7 March 1985
Apr	256.5 mm (10.1 in)	7 April 1938
May	234.7 mm (9.2 in)	2 May 1916
Jun	118.1 mm (4.6 in)	29 June 1941
Jul	77.5 mm (3.1 in)	22 July 1931
Aug	95.5 mm (3.8 in)	15 August 1950
Sep	83.1 mm (3.3 in)	21 September 1930
Oct	150.4 mm (5.9 in)	5 October 1906
Nov	238.0 mm (9.4 in)	19 November 1930
Dec	268.5 mm (10.6 in)	30 December 1906

Latest Records

Latest records at Haleakala Rch 432
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 April 2025	Haleakala Rch 432, US	daily rain	121.9 mm (4.8 in)	81.3 mm (3.2 in)	75 years	64 of 100 (Major)
21 February 2023	Haleakala Rch 432, US	daily rain	128.3 mm (5.1 in)	52.1 mm (2.1 in)	83 years	53 of 100 (Notable)
20 December 2022	Haleakala Rch 432, US	daily rain	184.2 mm (7.3 in)	47.3 mm (1.9 in)	76 years	46 of 100 (Notable)
29 February 2020	Haleakala Rch 432, US	daily rain	135.9 mm (5.4 in)	118.1 mm (4.6 in)	4 years	51 of 100 (Notable)
3 October 2019	Haleakala Rch 432, US	daily rain (Tie)	15.2 mm (0.6 in)	tie	4 years	2 of 100 (Routine)
15 April 2019	Haleakala Rch 432, US	daily rain (Tie)	50.8 mm (2.0 in)	tie	38 years	5 of 100 (Routine)
28 August 2018	Haleakala Rch 432, US	daily rain	15.2 mm (0.6 in)	4.0 mm (0.16 in)	92 years	20 of 100 (Routine)
16 February 2018	Haleakala Rch 432, US	daily rain	94.0 mm (3.7 in)	28.0 mm (1.1 in)	72 years	41 of 100 (Notable)
15 December 2017	Haleakala Rch 432, US	daily rain	109.2 mm (4.3 in)	51.3 mm (2.0 in)	80 years	50 of 100 (Notable)
27 October 2017	Haleakala Rch 432, US	daily rain	20.3 mm (0.8 in)	12.4 mm (0.5 in)	72 years	20 of 100 (Routine)
14 September 2016	Haleakala Rch 432, US	daily rain	43.7 mm (1.7 in)	3.1 mm (0.12 in)	74 years	34 of 100 (Routine)
23 August 2016	Haleakala Rch 432, US	daily rain	64.5 mm (2.5 in)	45.7 mm (1.8 in)	71 years	58 of 100 (Notable)
18 July 2016	Haleakala Rch 432, US	daily rain	38.9 mm (1.5 in)	12.2 mm (0.5 in)	68 years	41 of 100 (Notable)
25 May 2016	Haleakala Rch 432, US	daily rain	24.1 mm (0.9 in)	11.9 mm (0.5 in)	82 years	20 of 100 (Routine)
12 May 2016	Haleakala Rch 432, US	daily rain	29.2 mm (1.1 in)	0.2 mm (0.01 in)	88 years	36 of 100 (Notable)
9 May 2016	Haleakala Rch 432, US	daily rain	121.2 mm (4.8 in)	63.0 mm (2.5 in)	51 years	57 of 100 (Notable)
29 April 2016	Haleakala Rch 432, US	daily rain	254.0 mm (10.0 in)	215.6 mm (8.5 in)	66 years	69 of 100 (Major)
6 April 2016	Haleakala Rch 432, US	daily rain	56.4 mm (2.2 in)	13.7 mm (0.5 in)	71 years	37 of 100 (Notable)
29 February 2016	Haleakala Rch 432, US	daily rain	17.8 mm (0.7 in)	12.2 mm (0.5 in)	40 years	20 of 100 (Routine)
6 October 2015	Haleakala Rch 432, US	daily rain	76.2 mm (3.0 in)	42.7 mm (1.7 in)	108 years	60 of 100 (Major)

Extremes by Year

1905 to 2025

Yearly extremes at Haleakala Rch 432: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	359.9 mm (14.2 in)	1923	86.1 mm (3.4 in)	116
Wettest five days (Rx5day)	542.5 mm (21.4 in)	1907	135.2 mm (5.3 in)	92
Longest dry spell (CDD)	94 days	1973	31 days	102

Wettest day (Rx1day)

The wettest day of the year at Haleakala Rch 432, 1905 to 2025. The record is 359.9 mm (14.2 in) in 1923, marked on the chart; the median year is 86.1 mm (3.4 in).

Wettest day (Rx1day) at Haleakala Rch 432 by year
Year	Wettest day (Rx1day)
1905	68.8 mm (2.7 in)
1906	268.5 mm (10.6 in)
1907	79.2 mm (3.1 in)
1908	59.4 mm (2.3 in)
1909	98.0 mm (3.9 in)
1910	119.9 mm (4.7 in)
1911	117.6 mm (4.6 in)
1912	44.7 mm (1.8 in)
1913	48.3 mm (1.9 in)
1914	91.4 mm (3.6 in)
1915	93.2 mm (3.7 in)
1916	234.7 mm (9.2 in)
1917	52.8 mm (2.1 in)
1918	162.1 mm (6.4 in)
1919	49.3 mm (1.9 in)
1920	115.8 mm (4.6 in)
1921	162.3 mm (6.4 in)
1922	234.7 mm (9.2 in)
1923	359.9 mm (14.2 in)
1924	154.7 mm (6.1 in)
1925	112.3 mm (4.4 in)
1926	64.0 mm (2.5 in)
1927	98.0 mm (3.9 in)
1928	90.7 mm (3.6 in)
1929	145.5 mm (5.7 in)
1930	238.0 mm (9.4 in)
1931	77.5 mm (3.1 in)
1932	98.8 mm (3.9 in)
1933	114.3 mm (4.5 in)
1934	76.2 mm (3.0 in)
1935	152.4 mm (6.0 in)
1936	147.3 mm (5.8 in)
1937	151.1 mm (5.9 in)
1938	256.5 mm (10.1 in)
1939	123.4 mm (4.9 in)
1940	76.2 mm (3.0 in)
1941	136.1 mm (5.4 in)
1942	207.0 mm (8.1 in)
1943	111.0 mm (4.4 in)
1944	88.6 mm (3.5 in)
1945	62.2 mm (2.4 in)
1946	136.9 mm (5.4 in)
1947	101.6 mm (4.0 in)
1948	199.1 mm (7.8 in)
1949	55.1 mm (2.2 in)
1950	131.8 mm (5.2 in)
1951	57.2 mm (2.3 in)
1952	112.3 mm (4.4 in)
1953	85.1 mm (3.4 in)
1954	84.8 mm (3.3 in)
1955	128.8 mm (5.1 in)
1956	116.1 mm (4.6 in)
1957	36.6 mm (1.4 in)
1958	61.5 mm (2.4 in)
1959	183.1 mm (7.2 in)
1960	147.1 mm (5.8 in)
1961	137.9 mm (5.4 in)
1962	68.3 mm (2.7 in)
1963	86.1 mm (3.4 in)
1964	66.8 mm (2.6 in)
1965	99.8 mm (3.9 in)
1966	48.8 mm (1.9 in)
1967	87.6 mm (3.4 in)
1968	57.7 mm (2.3 in)
1969	131.3 mm (5.2 in)
1970	43.2 mm (1.7 in)
1971	66.3 mm (2.6 in)
1972	47.8 mm (1.9 in)
1973	61.0 mm (2.4 in)
1974	120.4 mm (4.7 in)
1975	11.7 mm (0.5 in)
1976	31.5 mm (1.2 in)
1977	70.6 mm (2.8 in)
1978	86.1 mm (3.4 in)
1979	152.9 mm (6.0 in)
1980	83.6 mm (3.3 in)
1981	77.2 mm (3.0 in)
1982	145.0 mm (5.7 in)
1983	63.8 mm (2.5 in)
1984	68.6 mm (2.7 in)
1985	211.1 mm (8.3 in)
1986	82.6 mm (3.3 in)
1987	134.6 mm (5.3 in)
1988	210.8 mm (8.3 in)
1989	185.4 mm (7.3 in)
1990	183.1 mm (7.2 in)
1991	0.0 mm (0.00 in)
1992	0.0 mm (0.00 in)
1993	n/a
1994	45.7 mm (1.8 in)
1995	n/a
1996	0.0 mm (0.00 in)
1997	25.4 mm (1.0 in)
1998	n/a
1999	21.6 mm (0.9 in)
2000	0.0 mm (0.00 in)
2001	41.9 mm (1.6 in)
2002	48.3 mm (1.9 in)
2003	n/a
2004	13.5 mm (0.5 in)
2005	63.5 mm (2.5 in)
2006	38.4 mm (1.5 in)
2007	45.7 mm (1.8 in)
2008	45.2 mm (1.8 in)
2009	8.1 mm (0.32 in)
2010	49.8 mm (2.0 in)
2011	72.6 mm (2.9 in)
2012	31.7 mm (1.2 in)
2013	49.3 mm (1.9 in)
2014	43.9 mm (1.7 in)
2015	84.8 mm (3.3 in)
2016	254.0 mm (10.0 in)
2017	109.2 mm (4.3 in)
2018	94.0 mm (3.7 in)
2019	74.7 mm (2.9 in)
2020	135.9 mm (5.4 in)
2021	18.0 mm (0.7 in)
2022	184.2 mm (7.3 in)
2023	128.3 mm (5.1 in)
2025	121.9 mm (4.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Haleakala Rch 432, 1905 to 2025. The record is 542.5 mm (21.4 in) in 1907, marked on the chart; the median year is 135.2 mm (5.3 in).

Wettest five days (Rx5day) at Haleakala Rch 432 by year
Year	Wettest five days (Rx5day)
1905	160.8 mm (6.3 in)
1906	473.7 mm (18.6 in)
1907	542.5 mm (21.4 in)
1908	108.9 mm (4.3 in)
1909	129.0 mm (5.1 in)
1910	196.6 mm (7.7 in)
1911	190.8 mm (7.5 in)
1912	82.8 mm (3.3 in)
1913	116.9 mm (4.6 in)
1914	120.4 mm (4.7 in)
1915	163.6 mm (6.4 in)
1916	444.8 mm (17.5 in)
1917	63.3 mm (2.5 in)
1918	465.6 mm (18.3 in)
1919	61.7 mm (2.4 in)
1920	189.4 mm (7.5 in)
1921	461.8 mm (18.2 in)
1922	434.1 mm (17.1 in)
1923	497.3 mm (19.6 in)
1924	259.1 mm (10.2 in)
1925	216.9 mm (8.5 in)
1926	119.9 mm (4.7 in)
1927	157.0 mm (6.2 in)
1928	169.8 mm (6.7 in)
1929	274.7 mm (10.8 in)
1930	307.6 mm (12.1 in)
1931	138.7 mm (5.5 in)
1932	271.5 mm (10.7 in)
1933	271.9 mm (10.7 in)
1934	104.2 mm (4.1 in)
1935	250.3 mm (9.9 in)
1936	209.8 mm (8.3 in)
1937	311.1 mm (12.2 in)
1938	421.6 mm (16.6 in)
1939	180.2 mm (7.1 in)
1940	109.7 mm (4.3 in)
1941	283.9 mm (11.2 in)
1942	333.5 mm (13.1 in)
1943	157.5 mm (6.2 in)
1944	177.1 mm (7.0 in)
1945	121.4 mm (4.8 in)
1946	322.9 mm (12.7 in)
1947	135.7 mm (5.3 in)
1948	509.3 mm (20.1 in)
1949	91.2 mm (3.6 in)
1950	155.4 mm (6.1 in)
1951	101.7 mm (4.0 in)
1952	128.3 mm (5.1 in)
1953	171.8 mm (6.8 in)
1954	240.8 mm (9.5 in)
1955	218.9 mm (8.6 in)
1956	136.2 mm (5.4 in)
1957	96.8 mm (3.8 in)
1958	81.0 mm (3.2 in)
1959	296.5 mm (11.7 in)
1960	287.8 mm (11.3 in)
1961	198.1 mm (7.8 in)
1962	131.6 mm (5.2 in)
1963	134.7 mm (5.3 in)
1964	194.8 mm (7.7 in)
1965	139.4 mm (5.5 in)
1966	82.8 mm (3.3 in)
1967	78.8 mm (3.1 in)
1968	143.0 mm (5.6 in)
1969	133.3 mm (5.2 in)
1970	66.6 mm (2.6 in)
1971	89.1 mm (3.5 in)
1972	n/a
1973	0.0 mm (0.00 in)
1974	157.5 mm (6.2 in)
1975	4.1 mm (0.16 in)
1976	51.6 mm (2.0 in)
1977	72.6 mm (2.9 in)
1978	47.3 mm (1.9 in)
1979	176.8 mm (7.0 in)
1980	0.0 mm (0.00 in)
1981	n/a
1982	n/a
1983	n/a
1984	7.6 mm (0.30 in)
1985	n/a
1986	50.8 mm (2.0 in)
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	0.0 mm (0.00 in)
1992	0.0 mm (0.00 in)
1993	n/a
1994	0.0 mm (0.00 in)
1995	n/a
1996	0.0 mm (0.00 in)
1997	n/a
1998	n/a
1999	0.0 mm (0.00 in)
2000	0.0 mm (0.00 in)
2001	n/a
2002	n/a
2003	n/a
2004	12.7 mm (0.5 in)
2005	63.5 mm (2.5 in)
2006	0.0 mm (0.00 in)
2007	45.7 mm (1.8 in)
2008	0.0 mm (0.00 in)
2009	0.0 mm (0.00 in)
2010	39.9 mm (1.6 in)
2011	0.0 mm (0.00 in)
2012	0.0 mm (0.00 in)
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2025	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Haleakala Rch 432, 1905 to 2025. The record is 94 days in 1973, marked on the chart; the median year is 31 days.

Longest dry spell (CDD) at Haleakala Rch 432 by year
Year	Longest dry spell (CDD)
1905	27 days
1906	29 days
1907	22 days
1908	68 days
1909	30 days
1910	42 days
1911	52 days
1912	74 days
1913	27 days
1914	27 days
1915	40 days
1916	27 days
1917	75 days
1918	13 days
1919	31 days
1920	54 days
1921	33 days
1922	92 days
1923	47 days
1924	56 days
1925	36 days
1926	24 days
1927	30 days
1928	51 days
1929	29 days
1930	39 days
1931	21 days
1932	41 days
1933	67 days
1934	26 days
1935	29 days
1936	28 days
1937	26 days
1938	43 days
1939	19 days
1940	54 days
1941	37 days
1942	24 days
1943	29 days
1944	60 days
1945	81 days
1946	48 days
1947	48 days
1948	26 days
1949	44 days
1950	33 days
1951	41 days
1952	33 days
1953	53 days
1954	43 days
1955	38 days
1956	31 days
1957	54 days
1958	14 days
1959	38 days
1960	26 days
1961	33 days
1962	66 days
1963	49 days
1964	21 days
1965	29 days
1966	22 days
1967	23 days
1968	27 days
1969	1 day
1970	34 days
1971	10 days
1972	n/a
1973	94 days
1974	4 days
1975	22 days
1976	57 days
1977	55 days
1978	20 days
1979	11 days
1980	30 days
1981	n/a
1982	1 day
1983	n/a
1984	27 days
1985	n/a
1986	8 days
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	30 days
1992	36 days
1993	n/a
1994	31 days
1995	n/a
1996	31 days
1997	n/a
1998	n/a
1999	30 days
2000	36 days
2001	n/a
2002	n/a
2003	n/a
2004	17 days
2005	18 days
2006	57 days
2007	50 days
2008	31 days
2009	40 days
2010	88 days
2011	32 days
2012	26 days
2013	1 day
2014	1 day
2015	1 day
2016	1 day
2017	1 day
2018	1 day
2019	1 day
2020	1 day
2021	n/a
2022	n/a
2023	1 day
2025	n/a

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

53 years, 1905 to 1964

A day with at least 103.8 mm (4.1 in) of rain is expected about once in 2 years. A day with at least 376.6 mm (14.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Haleakala Rch 432: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	103.8 mm (4.1 in)
5 years	158.7 mm (6.2 in)
10 years	201.3 mm (7.9 in)
25 years	263.6 mm (10.4 in)
50 years	316.9 mm (12.5 in)
100 years	376.6 mm (14.8 in)	Longer than the 53 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, 53 years of values from 1905 to 1964.

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: 359.9 mm (14.2 in) in 1923; 268.5 mm (10.6 in) in 1906; 256.5 mm (10.1 in) in 1938.

Download the Data

Data for Haleakala Rch 432 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Haleakala Rch 432 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

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

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a