Mahana 694 Weather Records (USC00515704)

Record envelope, standing records and threshold days for Mahana 694 (USC00515704), Hawaii, United States, with 53 years of record.

Key Facts for Mahana 694

Mahana 694 (USC00515704) is a weather station in Hawaii, United States at 20.87 latitude and -156.91 longitude, 469 m (1,540 ft) above sea level.
The station reports from 1955 to 2007, 53 years of record.
0 records set at Mahana 694 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, 20.87 latitude, -156.91 longitude.
Elevation: 469 m (1,540 ft).
Period of record: 1955 to 2007, 53 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 Mahana 694. 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 Mahana 694, 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 Mahana 694 still stand.

Wettest Day of Each Month

Jan: 218.4 mm (8.6 in)

The wettest day on record for each calendar month at Mahana 694. The most was 218.4 mm (8.6 in) on 1 January 2004.

Record daily precipitation for each month at Mahana 694
Month	Record daily precipitation (mm)	Date
Jan	218.4 mm (8.6 in)	1 January 2004
Feb	0.0 mm (0.00 in)	20 February 1970
Mar	0.0 mm (0.00 in)	1 March 1970
Apr	0.0 mm (0.00 in)	11 April 1970
May	15.5 mm (0.6 in)	31 May 1983
Jun	0.0 mm (0.00 in)	1 June 1956
Jul	17.3 mm (0.7 in)	29 July 1993
Aug	12.7 mm (0.5 in)	31 August 1982
Sep	19.3 mm (0.8 in)	1 September 1972
Oct	17.3 mm (0.7 in)	31 October 1983
Nov	77.5 mm (3.1 in)	1 November 1961
Dec	2.8 mm (0.11 in)	15 December 1972

Latest Records

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

Extremes by Year

1955 to 2007

Yearly extremes at Mahana 694: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	218.4 mm (8.6 in)	2004	0.0 mm (0.00 in)	34
Wettest five days (Rx5day)	64.8 mm (2.6 in)	1984	0.0 mm (0.00 in)	26
Longest dry spell (CDD)	91 days	1975	29 days	34

Wettest day (Rx1day)

The wettest day of the year at Mahana 694, 1955 to 2007. The record is 218.4 mm (8.6 in) in 2004, marked on the chart; the median year is 0.0 mm (0.00 in).

Wettest day (Rx1day) at Mahana 694 by year
Year	Wettest day (Rx1day)
1955	n/a
1956	0.0 mm (0.00 in)
1957	n/a
1958	3.8 mm (0.15 in)
1959	0.0 mm (0.00 in)
1960	0.0 mm (0.00 in)
1961	77.5 mm (3.1 in)
1962	n/a
1963	0.0 mm (0.00 in)
1964	n/a
1965	0.0 mm (0.00 in)
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	5.1 mm (0.20 in)
1971	0.0 mm (0.00 in)
1972	19.3 mm (0.8 in)
1973	0.0 mm (0.00 in)
1974	1.3 mm (0.05 in)
1975	0.0 mm (0.00 in)
1976	0.0 mm (0.00 in)
1977	0.0 mm (0.00 in)
1978	0.0 mm (0.00 in)
1979	0.0 mm (0.00 in)
1980	n/a
1981	0.0 mm (0.00 in)
1982	15.7 mm (0.6 in)
1983	17.3 mm (0.7 in)
1984	64.8 mm (2.6 in)
1985	0.0 mm (0.00 in)
1986	n/a
1987	n/a
1988	0.0 mm (0.00 in)
1989	n/a
1990	0.0 mm (0.00 in)
1991	0.0 mm (0.00 in)
1992	n/a
1993	17.3 mm (0.7 in)
1994	0.0 mm (0.00 in)
1995	0.0 mm (0.00 in)
1996	0.0 mm (0.00 in)
1997	n/a
1998	n/a
1999	0.0 mm (0.00 in)
2000	n/a
2001	n/a
2002	n/a
2003	0.0 mm (0.00 in)
2004	218.4 mm (8.6 in)
2005	0.0 mm (0.00 in)
2006	0.0 mm (0.00 in)
2007	n/a

Wettest five days (Rx5day)

The wettest five days of the year at Mahana 694, 1955 to 2007. The record is 64.8 mm (2.6 in) in 1984, marked on the chart; the median year is 0.0 mm (0.00 in).

Wettest five days (Rx5day) at Mahana 694 by year
Year	Wettest five days (Rx5day)
1955	n/a
1956	0.0 mm (0.00 in)
1957	n/a
1958	3.8 mm (0.15 in)
1959	0.0 mm (0.00 in)
1960	0.0 mm (0.00 in)
1961	0.0 mm (0.00 in)
1962	n/a
1963	0.0 mm (0.00 in)
1964	n/a
1965	0.0 mm (0.00 in)
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	5.1 mm (0.20 in)
1971	0.0 mm (0.00 in)
1972	19.3 mm (0.8 in)
1973	0.0 mm (0.00 in)
1974	0.0 mm (0.00 in)
1975	0.0 mm (0.00 in)
1976	0.0 mm (0.00 in)
1977	0.0 mm (0.00 in)
1978	0.0 mm (0.00 in)
1979	0.0 mm (0.00 in)
1980	n/a
1981	n/a
1982	15.7 mm (0.6 in)
1983	17.3 mm (0.7 in)
1984	64.8 mm (2.6 in)
1985	n/a
1986	n/a
1987	n/a
1988	0.0 mm (0.00 in)
1989	n/a
1990	0.0 mm (0.00 in)
1991	n/a
1992	n/a
1993	17.3 mm (0.7 in)
1994	0.0 mm (0.00 in)
1995	0.0 mm (0.00 in)
1996	n/a
1997	n/a
1998	n/a
1999	0.0 mm (0.00 in)
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Mahana 694, 1955 to 2007. The record is 91 days in 1975, marked on the chart; the median year is 29 days.

Longest dry spell (CDD) at Mahana 694 by year
Year	Longest dry spell (CDD)
1955	n/a
1956	30 days
1957	n/a
1958	29 days
1959	17 days
1960	31 days
1961	30 days
1962	n/a
1963	30 days
1964	n/a
1965	61 days
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	42 days
1971	28 days
1972	41 days
1973	63 days
1974	20 days
1975	91 days
1976	28 days
1977	31 days
1978	17 days
1979	13 days
1980	n/a
1981	1 day
1982	31 days
1983	60 days
1984	60 days
1985	1 day
1986	n/a
1987	n/a
1988	31 days
1989	n/a
1990	30 days
1991	2 days
1992	n/a
1993	27 days
1994	13 days
1995	7 days
1996	2 days
1997	n/a
1998	n/a
1999	63 days
2000	n/a
2001	n/a
2002	n/a
2003	1 day
2004	1 day
2005	1 day
2006	1 day
2007	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 Mahana 694 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mahana 694 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