Waikamoi 449 Weather Records (USC00519332)

Record envelope, standing records and threshold days for Waikamoi 449 (USC00519332), Hawaii, United States, with 59 years of record.

Key Facts for Waikamoi 449

Waikamoi 449 (USC00519332) is a weather station in Hawaii, United States at 20.86 latitude and -156.19 longitude, 366 m (1,200 ft) above sea level.
The station reports from 1953 to 2011, 59 years of record.
0 records set at Waikamoi 449 still stand.
Records are tracked for snow, snwd: an element needs 30 years of data to be eligible.

About the Station

Location: Hawaii, United States, 20.86 latitude, -156.19 longitude.
Elevation: 366 m (1,200 ft).
Period of record: 1953 to 2011, 59 years.
Eligible elements: 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 Waikamoi 449. 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 Waikamoi 449, 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 Waikamoi 449 still stand.

Wettest Day of Each Month

Jan: 807.7 mm (31.8 in)

The wettest day on record for each calendar month at Waikamoi 449. The most was 807.7 mm (31.8 in) on 1 January 1990.

Record daily precipitation for each month at Waikamoi 449
Month	Record daily precipitation (mm)	Date
Jan	807.7 mm (31.8 in)	1 January 1990
Feb	599.4 mm (23.6 in)	1 February 1990
Mar	584.2 mm (23.0 in)	30 March 1990
Apr	581.7 mm (22.9 in)	30 April 1982
May	586.7 mm (23.1 in)	21 May 1985
Jun	381.0 mm (15.0 in)	1 June 1990
Jul	586.7 mm (23.1 in)	31 July 1982
Aug	607.1 mm (23.9 in)	31 August 1982
Sep	543.6 mm (21.4 in)	30 September 1983
Oct	469.9 mm (18.5 in)	31 October 1983
Nov	589.3 mm (23.2 in)	30 November 1986
Dec	436.9 mm (17.2 in)	1 December 1988

Latest Records

No records were set at this station in the latest data.

Extremes by Year

1953 to 2011

Yearly extremes at Waikamoi 449: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	807.7 mm (31.8 in)	1990	101.6 mm (4.0 in)	23
Wettest five days (Rx5day)	145.3 mm (5.7 in)	1954	47.5 mm (1.9 in)	4
Longest dry spell (CDD)	30 days	2000	3 days	11

Wettest day (Rx1day)

The wettest day of the year at Waikamoi 449, 1953 to 2011. The record is 807.7 mm (31.8 in) in 1990, marked on the chart; the median year is 101.6 mm (4.0 in).

Wettest day (Rx1day) at Waikamoi 449 by year
Year	Wettest day (Rx1day)
1953	0.0 mm (0.00 in)
1954	145.3 mm (5.7 in)
1955	0.8 mm (0.03 in)
1956	10.7 mm (0.4 in)
1957	3.0 mm (0.12 in)
1958	n/a
1959	95.0 mm (3.7 in)
1960	0.0 mm (0.00 in)
1961	0.0 mm (0.00 in)
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	0.0 mm (0.00 in)
1980	n/a
1981	n/a
1982	607.1 mm (23.9 in)
1983	543.6 mm (21.4 in)
1984	439.4 mm (17.3 in)
1985	586.7 mm (23.1 in)
1986	589.3 mm (23.2 in)
1987	581.7 mm (22.9 in)
1988	436.9 mm (17.2 in)
1989	594.4 mm (23.4 in)
1990	807.7 mm (31.8 in)
1991	n/a
1992	0.0 mm (0.00 in)
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	0.0 mm (0.00 in)
2001	n/a
2002	0.0 mm (0.00 in)
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	553.7 mm (21.8 in)
2011	101.6 mm (4.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Waikamoi 449, 1953 to 2011. The record is 145.3 mm (5.7 in) in 1954, marked on the chart; the median year is 47.5 mm (1.9 in).

Wettest five days (Rx5day) at Waikamoi 449 by year
Year	Wettest five days (Rx5day)
1953	n/a
1954	145.3 mm (5.7 in)
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	95.0 mm (3.7 in)
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	0.0 mm (0.00 in)
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	0.0 mm (0.00 in)
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

Longest dry spell (CDD)

The longest dry spell of the year at Waikamoi 449, 1953 to 2011. The record is 30 days in 2000, marked on the chart; the median year is 3 days.

Longest dry spell (CDD) at Waikamoi 449 by year
Year	Longest dry spell (CDD)
1953	1 day
1954	6 days
1955	1 day
1956	n/a
1957	3 days
1958	n/a
1959	6 days
1960	3 days
1961	1 day
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	1 day
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	25 days
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	30 days
2001	n/a
2002	1 day
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

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.

Download the Data

Data for Waikamoi 449 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Waikamoi 449 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 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