Keahua 410 Weather Records (USC00513910)

Record envelope, standing records and threshold days for Keahua 410 (USC00513910), Hawaii, United States, with 75 years of record.

Key Facts for Keahua 410

Keahua 410 (USC00513910) is a weather station in Hawaii, United States at 20.86 latitude and -156.38 longitude, 149 m (488 ft) above sea level.
The station reports from 1942 to 2016, 75 years of record.
124 records set at Keahua 410 still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Keahua 410 set a daily record precipitation of 13.5 mm (0.5 in) on 23 September 2016.

About the Station

Location: Hawaii, United States, 20.86 latitude, -156.38 longitude.
Elevation: 149 m (488 ft).
Period of record: 1942 to 2016, 75 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 Keahua 410. 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 Keahua 410, 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	32.8 C (91.0 F)	17.8 C (64.0 F)	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

124 standing records

124 records at Keahua 410 still stand. 1959 holds the most, with 124.

Wettest Day of Each Month

Jan: 180.8 mm (7.1 in)

The wettest day on record for each calendar month at Keahua 410. The most was 180.8 mm (7.1 in) on 29 January 1971.

Record daily precipitation for each month at Keahua 410
Month	Record daily precipitation (mm)	Date
Jan	180.8 mm (7.1 in)	29 January 1971
Feb	126.0 mm (5.0 in)	22 February 1951
Mar	115.1 mm (4.5 in)	25 March 1994
Apr	121.9 mm (4.8 in)	26 April 1997
May	68.6 mm (2.7 in)	6 May 1987
Jun	33.5 mm (1.3 in)	30 June 1967
Jul	28.4 mm (1.1 in)	23 July 1989
Aug	39.4 mm (1.6 in)	30 August 1972
Sep	38.6 mm (1.5 in)	14 September 2016
Oct	100.8 mm (4.0 in)	31 October 1978
Nov	102.9 mm (4.1 in)	29 November 1968
Dec	135.9 mm (5.4 in)	2 December 1950

Period of Record Coverage

1959 to 1959

1 years of record at Keahua 410, 1959 to 1959. 1 years have data for under 90 percent of days and are left out of rankings: 1959.

Latest Records

Latest records at Keahua 410
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 September 2016	Keahua 410, US	daily rain	13.5 mm (0.5 in)	8.7 mm (0.34 in)	34 years	20 of 100 (Routine)
14 September 2016	Keahua 410, US	monthly rain	38.6 mm (1.5 in)	0.5 mm (0.02 in)	24 years	25 of 100 (Routine)
13 September 2016	Keahua 410, US	daily rain	15.2 mm (0.6 in)	4.5 mm (0.18 in)	24 years	20 of 100 (Routine)
31 August 2016	Keahua 410, US	daily rain	6.4 mm (0.25 in)	1.3 mm (0.05 in)	74 years	20 of 100 (Routine)
24 July 2016	Keahua 410, US	daily rain	21.1 mm (0.8 in)	5.9 mm (0.23 in)	24 years	20 of 100 (Routine)
4 July 2016	Keahua 410, US	daily rain	2.5 mm (0.10 in)	0.5 mm (0.02 in)	29 years	16 of 100 (Routine)
1 June 2016	Keahua 410, US	daily rain	3.0 mm (0.12 in)	1.0 mm (0.04 in)	1 year	9 of 100 (Routine)
26 May 2016	Keahua 410, US	daily rain	16.3 mm (0.6 in)	1.1 mm (0.04 in)	29 years	16 of 100 (Routine)
25 May 2016	Keahua 410, US	daily rain	9.7 mm (0.38 in)	1.3 mm (0.05 in)	73 years	20 of 100 (Routine)
9 May 2016	Keahua 410, US	daily rain	17.0 mm (0.7 in)	9.4 mm (0.37 in)	20 years	20 of 100 (Routine)
8 May 2016	Keahua 410, US	daily rain	37.6 mm (1.5 in)	21.9 mm (0.9 in)	31 years	48 of 100 (Notable)
6 April 2016	Keahua 410, US	daily rain	35.1 mm (1.4 in)	1.1 mm (0.04 in)	27 years	16 of 100 (Routine)
7 February 2016	Keahua 410, US	daily rain	16.3 mm (0.6 in)	0.6 mm (0.02 in)	40 years	19 of 100 (Routine)
25 November 2015	Keahua 410, US	daily rain	48.3 mm (1.9 in)	7.7 mm (0.30 in)	40 years	25 of 100 (Routine)
20 November 2015	Keahua 410, US	daily rain	51.6 mm (2.0 in)	31.3 mm (1.2 in)	22 years	38 of 100 (Notable)
6 October 2015	Keahua 410, US	daily rain	24.4 mm (1.0 in)	16.8 mm (0.7 in)	25 years	20 of 100 (Routine)
5 October 2015	Keahua 410, US	daily rain	10.7 mm (0.4 in)	4.1 mm (0.16 in)	53 years	20 of 100 (Routine)
25 August 2015	Keahua 410, US	daily rain	20.8 mm (0.8 in)	10.9 mm (0.4 in)	57 years	20 of 100 (Routine)
24 August 2015	Keahua 410, US	daily rain	21.6 mm (0.9 in)	5.1 mm (0.20 in)	14 years	20 of 100 (Routine)
19 August 2015	Keahua 410, US	daily rain	13.2 mm (0.5 in)	10.2 mm (0.4 in)	69 years	20 of 100 (Routine)

Extremes by Year

1942 to 2016

Yearly extremes at Keahua 410: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	32.8 C (91.0 F)	1959	32.8 C (91.0 F)	1
Coldest night (TNn)	17.8 C (64.0 F)	1959	17.8 C (64.0 F)	1
Wettest day (Rx1day)	180.8 mm (7.1 in)	1971	64.8 mm (2.6 in)	75
Wettest five days (Rx5day)	314.5 mm (12.4 in)	1948	102.6 mm (4.0 in)	75
Longest dry spell (CDD)	158 days	2010	49 days	75

Hottest day (TXx)

The hottest day of the year at Keahua 410, 1942 to 2016. The record is 32.8 C (91.0 F) in 1959, marked on the chart; the median year is 32.8 C (91.0 F).

Hottest day (TXx) at Keahua 410 by year
Year	Hottest day (TXx)
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	32.8 C (91.0 F)
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a

Coldest night (TNn)

The coldest night of the year at Keahua 410, 1942 to 2016. The record is 17.8 C (64.0 F) in 1959, marked on the chart; the median year is 17.8 C (64.0 F).

Coldest night (TNn) at Keahua 410 by year
Year	Coldest night (TNn)
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	17.8 C (64.0 F)
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a

Wettest day (Rx1day)

The wettest day of the year at Keahua 410, 1942 to 2016. The record is 180.8 mm (7.1 in) in 1971, marked on the chart; the median year is 64.8 mm (2.6 in).

Wettest day (Rx1day) at Keahua 410 by year
Year	Wettest day (Rx1day)
1942	48.5 mm (1.9 in)
1943	49.0 mm (1.9 in)
1944	70.1 mm (2.8 in)
1945	32.5 mm (1.3 in)
1946	99.6 mm (3.9 in)
1947	75.2 mm (3.0 in)
1948	99.1 mm (3.9 in)
1949	48.0 mm (1.9 in)
1950	135.9 mm (5.4 in)
1951	126.0 mm (5.0 in)
1952	108.2 mm (4.3 in)
1953	42.2 mm (1.7 in)
1954	45.2 mm (1.8 in)
1955	83.8 mm (3.3 in)
1956	77.7 mm (3.1 in)
1957	51.1 mm (2.0 in)
1958	54.4 mm (2.1 in)
1959	126.7 mm (5.0 in)
1960	37.6 mm (1.5 in)
1961	97.3 mm (3.8 in)
1962	41.4 mm (1.6 in)
1963	64.3 mm (2.5 in)
1964	40.6 mm (1.6 in)
1965	85.9 mm (3.4 in)
1966	72.4 mm (2.9 in)
1967	51.8 mm (2.0 in)
1968	102.9 mm (4.1 in)
1969	92.7 mm (3.6 in)
1970	89.2 mm (3.5 in)
1971	180.8 mm (7.1 in)
1972	60.5 mm (2.4 in)
1973	37.6 mm (1.5 in)
1974	87.9 mm (3.5 in)
1975	40.6 mm (1.6 in)
1976	52.1 mm (2.1 in)
1977	50.0 mm (2.0 in)
1978	100.8 mm (4.0 in)
1979	88.4 mm (3.5 in)
1980	135.6 mm (5.3 in)
1981	52.1 mm (2.1 in)
1982	84.8 mm (3.3 in)
1983	102.9 mm (4.1 in)
1984	52.1 mm (2.1 in)
1985	52.1 mm (2.1 in)
1986	47.0 mm (1.9 in)
1987	82.6 mm (3.3 in)
1988	135.9 mm (5.4 in)
1989	91.4 mm (3.6 in)
1990	57.7 mm (2.3 in)
1991	62.2 mm (2.4 in)
1992	95.3 mm (3.8 in)
1993	27.9 mm (1.1 in)
1994	115.1 mm (4.5 in)
1995	87.6 mm (3.4 in)
1996	85.9 mm (3.4 in)
1997	121.9 mm (4.8 in)
1998	19.8 mm (0.8 in)
1999	47.5 mm (1.9 in)
2000	37.3 mm (1.5 in)
2001	63.5 mm (2.5 in)
2002	70.4 mm (2.8 in)
2003	61.0 mm (2.4 in)
2004	64.8 mm (2.6 in)
2005	48.3 mm (1.9 in)
2006	115.3 mm (4.5 in)
2007	66.3 mm (2.6 in)
2008	58.7 mm (2.3 in)
2009	39.1 mm (1.5 in)
2010	76.5 mm (3.0 in)
2011	62.7 mm (2.5 in)
2012	33.5 mm (1.3 in)
2013	82.6 mm (3.3 in)
2014	69.9 mm (2.8 in)
2015	55.9 mm (2.2 in)
2016	38.6 mm (1.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Keahua 410, 1942 to 2016. The record is 314.5 mm (12.4 in) in 1948, marked on the chart; the median year is 102.6 mm (4.0 in).

Wettest five days (Rx5day) at Keahua 410 by year
Year	Wettest five days (Rx5day)
1942	162.1 mm (6.4 in)
1943	96.0 mm (3.8 in)
1944	138.2 mm (5.4 in)
1945	79.3 mm (3.1 in)
1946	169.9 mm (6.7 in)
1947	75.5 mm (3.0 in)
1948	314.5 mm (12.4 in)
1949	79.2 mm (3.1 in)
1950	206.0 mm (8.1 in)
1951	141.2 mm (5.6 in)
1952	113.5 mm (4.5 in)
1953	78.1 mm (3.1 in)
1954	83.0 mm (3.3 in)
1955	149.6 mm (5.9 in)
1956	160.5 mm (6.3 in)
1957	68.4 mm (2.7 in)
1958	69.1 mm (2.7 in)
1959	219.2 mm (8.6 in)
1960	80.0 mm (3.1 in)
1961	158.5 mm (6.2 in)
1962	74.9 mm (2.9 in)
1963	82.6 mm (3.3 in)
1964	73.1 mm (2.9 in)
1965	137.3 mm (5.4 in)
1966	104.6 mm (4.1 in)
1967	69.8 mm (2.7 in)
1968	110.3 mm (4.3 in)
1969	126.0 mm (5.0 in)
1970	115.2 mm (4.5 in)
1971	247.2 mm (9.7 in)
1972	82.6 mm (3.3 in)
1973	59.2 mm (2.3 in)
1974	120.1 mm (4.7 in)
1975	47.2 mm (1.9 in)
1976	52.9 mm (2.1 in)
1977	86.6 mm (3.4 in)
1978	150.0 mm (5.9 in)
1979	164.1 mm (6.5 in)
1980	238.9 mm (9.4 in)
1981	85.8 mm (3.4 in)
1982	102.6 mm (4.0 in)
1983	117.1 mm (4.6 in)
1984	69.9 mm (2.8 in)
1985	85.1 mm (3.4 in)
1986	98.8 mm (3.9 in)
1987	110.5 mm (4.4 in)
1988	136.5 mm (5.4 in)
1989	251.6 mm (9.9 in)
1990	154.1 mm (6.1 in)
1991	65.2 mm (2.6 in)
1992	104.7 mm (4.1 in)
1993	46.0 mm (1.8 in)
1994	173.3 mm (6.8 in)
1995	101.1 mm (4.0 in)
1996	119.4 mm (4.7 in)
1997	145.2 mm (5.7 in)
1998	52.5 mm (2.1 in)
1999	70.6 mm (2.8 in)
2000	72.3 mm (2.8 in)
2001	101.3 mm (4.0 in)
2002	129.6 mm (5.1 in)
2003	118.9 mm (4.7 in)
2004	120.8 mm (4.8 in)
2005	78.6 mm (3.1 in)
2006	125.8 mm (5.0 in)
2007	127.4 mm (5.0 in)
2008	72.9 mm (2.9 in)
2009	48.6 mm (1.9 in)
2010	85.9 mm (3.4 in)
2011	153.4 mm (6.0 in)
2012	66.5 mm (2.6 in)
2013	106.2 mm (4.2 in)
2014	95.3 mm (3.8 in)
2015	86.9 mm (3.4 in)
2016	94.6 mm (3.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Keahua 410, 1942 to 2016. The record is 158 days in 2010, marked on the chart; the median year is 49 days.

Longest dry spell (CDD) at Keahua 410 by year
Year	Longest dry spell (CDD)
1942	37 days
1943	40 days
1944	59 days
1945	66 days
1946	62 days
1947	76 days
1948	37 days
1949	48 days
1950	27 days
1951	57 days
1952	69 days
1953	90 days
1954	36 days
1955	57 days
1956	33 days
1957	51 days
1958	38 days
1959	49 days
1960	51 days
1961	35 days
1962	63 days
1963	60 days
1964	55 days
1965	54 days
1966	39 days
1967	37 days
1968	45 days
1969	25 days
1970	34 days
1971	47 days
1972	46 days
1973	79 days
1974	78 days
1975	91 days
1976	148 days
1977	72 days
1978	31 days
1979	51 days
1980	58 days
1981	66 days
1982	29 days
1983	32 days
1984	52 days
1985	56 days
1986	25 days
1987	24 days
1988	53 days
1989	30 days
1990	36 days
1991	33 days
1992	20 days
1993	43 days
1994	58 days
1995	30 days
1996	55 days
1997	26 days
1998	27 days
1999	81 days
2000	66 days
2001	38 days
2002	47 days
2003	43 days
2004	44 days
2005	38 days
2006	111 days
2007	97 days
2008	90 days
2009	31 days
2010	158 days
2011	60 days
2012	68 days
2013	68 days
2014	65 days
2015	39 days
2016	19 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

70 years, 1943 to 2015

A day with at least 69.6 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 171.9 mm (6.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Keahua 410: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	69.6 mm (2.7 in)
5 years	98.2 mm (3.9 in)
10 years	116.7 mm (4.6 in)
25 years	139.4 mm (5.5 in)
50 years	155.9 mm (6.1 in)
100 years	171.9 mm (6.8 in)	Longer than the 70 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, 70 years of values from 1943 to 2015.

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: 180.8 mm (7.1 in) in 1971; 135.9 mm (5.4 in) in 1950; 135.9 mm (5.4 in) in 1988.

Download the Data

Data for Keahua 410 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Keahua 410 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).