Ulupalakua Rch 250 Weather Records (USC00518760)

Record envelope, standing records and threshold days for Ulupalakua Rch 250 (USC00518760), Hawaii, United States, with 72 years of record.

Key Facts for Ulupalakua Rch 250

Ulupalakua Rch 250 (USC00518760) is a weather station in Hawaii, United States at 20.65 latitude and -156.40 longitude, 579 m (1,900 ft) above sea level.
The station reports from 1955 to 2026, 72 years of record.
80 records set at Ulupalakua Rch 250 still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Ulupalakua Rch 250 set a daily record precipitation of 18.8 mm (0.7 in) on 10 September 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Hawaii, United States, 20.65 latitude, -156.40 longitude.
Elevation: 579 m (1,900 ft).
Period of record: 1955 to 2026, 72 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 Ulupalakua Rch 250. 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 Ulupalakua Rch 250, 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	31.1 C (88.0 F)	11.7 C (53.1 F)	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

80 standing records

80 records at Ulupalakua Rch 250 still stand. 1981 holds the most, with 80.

All-Time Record Progression

1 new records

1 all-time records were set at Ulupalakua Rch 250 between 14 March 2026 and 14 March 2026. Each dot is a new record.

Wettest Day of Each Month

Mar: 289.6 mm (11.4 in)

The wettest day on record for each calendar month at Ulupalakua Rch 250. The most was 289.6 mm (11.4 in) on 14 March 2026.

Record daily precipitation for each month at Ulupalakua Rch 250
Month	Record daily precipitation (mm)	Date
Jan	213.6 mm (8.4 in)	18 January 1959
Feb	105.9 mm (4.2 in)	12 February 1979
Mar	289.6 mm (11.4 in)	14 March 2026
Apr	130.0 mm (5.1 in)	21 April 2004
May	78.7 mm (3.1 in)	10 May 2005
Jun	111.0 mm (4.4 in)	21 June 1982
Jul	101.3 mm (4.0 in)	31 July 1959
Aug	98.3 mm (3.9 in)	14 August 1990
Sep	91.9 mm (3.6 in)	19 September 1974
Oct	167.6 mm (6.6 in)	17 October 2006
Nov	94.5 mm (3.7 in)	28 November 2001
Dec	211.3 mm (8.3 in)	7 December 1988

Period of Record Coverage

1981 to 1981

1 years of record at Ulupalakua Rch 250, 1981 to 1981. 1 years have data for under 90 percent of days and are left out of rankings: 1981.

Latest Records

Latest records at Ulupalakua Rch 250
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
10 September 2026	Ulupalakua Rch 250, US	daily rain (Provisional)	18.8 mm (0.7 in)	1.8 mm (0.07 in)	56 years	20 of 100 (Routine)
30 July 2026	Ulupalakua Rch 250, US	daily rain	13.2 mm (0.5 in)	3.0 mm (0.12 in)	35 years	19 of 100 (Routine)
5 June 2026	Ulupalakua Rch 250, US	daily rain	21.6 mm (0.9 in)	5.9 mm (0.23 in)	35 years	20 of 100 (Routine)
30 May 2026	Ulupalakua Rch 250, US	daily rain (Tie)	6.4 mm (0.25 in)	tie	69 years	6 of 100 (Routine)
9 May 2026	Ulupalakua Rch 250, US	daily rain	37.6 mm (1.5 in)	32.0 mm (1.3 in)	29 years	43 of 100 (Notable)
15 March 2026	Ulupalakua Rch 250, US	daily rain	198.1 mm (7.8 in)	176.8 mm (7.0 in)	24 years	54 of 100 (Notable)
14 March 2026	Ulupalakua Rch 250, US	all-time rain	289.6 mm (11.4 in)	76.0 mm (3.0 in)	67 years	87 of 100 (Exceptional)
25 September 2025	Ulupalakua Rch 250, US	daily rain	47.0 mm (1.9 in)	37.1 mm (1.5 in)	60 years	54 of 100 (Notable)
17 January 2024	Ulupalakua Rch 250, US	daily rain	203.2 mm (8.0 in)	149.9 mm (5.9 in)	56 years	63 of 100 (Major)
31 May 2023	Ulupalakua Rch 250, US	daily rain	17.3 mm (0.7 in)	3.3 mm (0.13 in)	44 years	20 of 100 (Routine)
28 April 2023	Ulupalakua Rch 250, US	daily rain	73.7 mm (2.9 in)	69.1 mm (2.7 in)	8 years	48 of 100 (Notable)
20 April 2023	Ulupalakua Rch 250, US	daily rain	79.2 mm (3.1 in)	13.2 mm (0.5 in)	40 years	25 of 100 (Routine)
19 April 2023	Ulupalakua Rch 250, US	daily rain	33.0 mm (1.3 in)	5.6 mm (0.22 in)	54 years	25 of 100 (Routine)
5 August 2022	Ulupalakua Rch 250, US	daily rain	83.1 mm (3.3 in)	52.6 mm (2.1 in)	41 years	58 of 100 (Notable)
4 August 2022	Ulupalakua Rch 250, US	daily rain	62.7 mm (2.5 in)	6.8 mm (0.27 in)	17 years	16 of 100 (Routine)
16 November 2021	Ulupalakua Rch 250, US	daily rain	13.5 mm (0.5 in)	1.6 mm (0.06 in)	32 years	15 of 100 (Routine)
13 March 2021	Ulupalakua Rch 250, US	monthly rain	169.7 mm (6.7 in)	77.0 mm (3.0 in)	53 years	72 of 100 (Major)
11 March 2021	Ulupalakua Rch 250, US	daily rain	64.8 mm (2.6 in)	28.0 mm (1.1 in)	52 years	38 of 100 (Notable)
3 October 2020	Ulupalakua Rch 250, US	daily rain	47.2 mm (1.9 in)	20.5 mm (0.8 in)	41 years	29 of 100 (Routine)
23 July 2020	Ulupalakua Rch 250, US	daily rain	30.5 mm (1.2 in)	13.0 mm (0.5 in)	35 years	26 of 100 (Routine)

Extremes by Year

1955 to 2026

Yearly extremes at Ulupalakua Rch 250: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	31.1 C (88.0 F)	1981	31.1 C (88.0 F)	1
Coldest night (TNn)	11.7 C (53.1 F)	1981	11.7 C (53.1 F)	1
Wettest day (Rx1day)	289.6 mm (11.4 in)	2026	77.1 mm (3.0 in)	72
Wettest five days (Rx5day)	557.5 mm (21.9 in)	2026	96.5 mm (3.8 in)	72
Longest dry spell (CDD)	65 days	1962	25 days	72

Hottest day (TXx)

The hottest day of the year at Ulupalakua Rch 250, 1955 to 2026. The record is 31.1 C (88.0 F) in 1981, marked on the chart; the median year is 31.1 C (88.0 F).

Hottest day (TXx) at Ulupalakua Rch 250 by year
Year	Hottest day (TXx)
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
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	31.1 C (88.0 F)
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
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Coldest night (TNn)

The coldest night of the year at Ulupalakua Rch 250, 1955 to 2026. The record is 11.7 C (53.1 F) in 1981, marked on the chart; the median year is 11.7 C (53.1 F).

Coldest night (TNn) at Ulupalakua Rch 250 by year
Year	Coldest night (TNn)
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
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	11.7 C (53.1 F)
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
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at Ulupalakua Rch 250, 1955 to 2026. The record is 289.6 mm (11.4 in) in 2026, marked on the chart; the median year is 77.1 mm (3.0 in).

Wettest day (Rx1day) at Ulupalakua Rch 250 by year
Year	Wettest day (Rx1day)
1955	161.3 mm (6.4 in)
1956	61.5 mm (2.4 in)
1957	28.2 mm (1.1 in)
1958	75.4 mm (3.0 in)
1959	213.6 mm (8.4 in)
1960	49.5 mm (1.9 in)
1961	163.8 mm (6.4 in)
1962	53.3 mm (2.1 in)
1963	78.2 mm (3.1 in)
1964	61.0 mm (2.4 in)
1965	85.1 mm (3.4 in)
1966	66.0 mm (2.6 in)
1967	100.6 mm (4.0 in)
1968	95.3 mm (3.8 in)
1969	103.4 mm (4.1 in)
1970	78.2 mm (3.1 in)
1971	152.9 mm (6.0 in)
1972	60.2 mm (2.4 in)
1973	74.9 mm (2.9 in)
1974	91.9 mm (3.6 in)
1975	64.8 mm (2.6 in)
1976	83.1 mm (3.3 in)
1977	58.7 mm (2.3 in)
1978	93.2 mm (3.7 in)
1979	105.9 mm (4.2 in)
1980	160.5 mm (6.3 in)
1981	67.1 mm (2.6 in)
1982	111.0 mm (4.4 in)
1983	75.9 mm (3.0 in)
1984	63.2 mm (2.5 in)
1985	71.1 mm (2.8 in)
1986	85.6 mm (3.4 in)
1987	80.3 mm (3.2 in)
1988	211.3 mm (8.3 in)
1989	65.3 mm (2.6 in)
1990	98.3 mm (3.9 in)
1991	40.6 mm (1.6 in)
1992	55.4 mm (2.2 in)
1993	72.9 mm (2.9 in)
1994	86.1 mm (3.4 in)
1995	65.8 mm (2.6 in)
1996	113.5 mm (4.5 in)
1997	59.9 mm (2.4 in)
1998	57.7 mm (2.3 in)
1999	45.0 mm (1.8 in)
2000	61.0 mm (2.4 in)
2001	94.5 mm (3.7 in)
2002	68.3 mm (2.7 in)
2003	132.8 mm (5.2 in)
2004	130.0 mm (5.1 in)
2005	94.7 mm (3.7 in)
2006	167.6 mm (6.6 in)
2007	118.1 mm (4.6 in)
2008	80.3 mm (3.2 in)
2009	58.7 mm (2.3 in)
2010	94.0 mm (3.7 in)
2011	36.6 mm (1.4 in)
2012	35.6 mm (1.4 in)
2013	46.7 mm (1.8 in)
2014	65.5 mm (2.6 in)
2015	39.6 mm (1.6 in)
2016	48.8 mm (1.9 in)
2017	112.8 mm (4.4 in)
2018	59.2 mm (2.3 in)
2019	70.4 mm (2.8 in)
2020	47.2 mm (1.9 in)
2021	169.7 mm (6.7 in)
2022	83.1 mm (3.3 in)
2023	79.2 mm (3.1 in)
2024	203.2 mm (8.0 in)
2025	47.0 mm (1.9 in)
2026	289.6 mm (11.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ulupalakua Rch 250, 1955 to 2026. The record is 557.5 mm (21.9 in) in 2026, marked on the chart; the median year is 96.5 mm (3.8 in).

Wettest five days (Rx5day) at Ulupalakua Rch 250 by year
Year	Wettest five days (Rx5day)
1955	281.4 mm (11.1 in)
1956	101.6 mm (4.0 in)
1957	57.7 mm (2.3 in)
1958	95.2 mm (3.7 in)
1959	216.1 mm (8.5 in)
1960	86.6 mm (3.4 in)
1961	320.1 mm (12.6 in)
1962	91.9 mm (3.6 in)
1963	131.6 mm (5.2 in)
1964	107.4 mm (4.2 in)
1965	146.2 mm (5.8 in)
1966	97.1 mm (3.8 in)
1967	179.6 mm (7.1 in)
1968	201.0 mm (7.9 in)
1969	233.9 mm (9.2 in)
1970	100.9 mm (4.0 in)
1971	161.5 mm (6.4 in)
1972	89.1 mm (3.5 in)
1973	96.2 mm (3.8 in)
1974	98.6 mm (3.9 in)
1975	74.4 mm (2.9 in)
1976	105.0 mm (4.1 in)
1977	58.7 mm (2.3 in)
1978	93.5 mm (3.7 in)
1979	162.1 mm (6.4 in)
1980	59.9 mm (2.4 in)
1981	104.5 mm (4.1 in)
1982	186.2 mm (7.3 in)
1983	104.1 mm (4.1 in)
1984	78.4 mm (3.1 in)
1985	86.7 mm (3.4 in)
1986	92.5 mm (3.6 in)
1987	84.8 mm (3.3 in)
1988	261.1 mm (10.3 in)
1989	140.2 mm (5.5 in)
1990	98.3 mm (3.9 in)
1991	26.6 mm (1.0 in)
1992	55.4 mm (2.2 in)
1993	19.6 mm (0.8 in)
1994	96.8 mm (3.8 in)
1995	44.2 mm (1.7 in)
1996	60.7 mm (2.4 in)
1997	21.1 mm (0.8 in)
1998	58.7 mm (2.3 in)
1999	2.5 mm (0.10 in)
2000	120.0 mm (4.7 in)
2001	118.6 mm (4.7 in)
2002	200.4 mm (7.9 in)
2003	148.1 mm (5.8 in)
2004	172.6 mm (6.8 in)
2005	94.7 mm (3.7 in)
2006	90.6 mm (3.6 in)
2007	264.9 mm (10.4 in)
2008	100.5 mm (4.0 in)
2009	97.3 mm (3.8 in)
2010	121.5 mm (4.8 in)
2011	46.1 mm (1.8 in)
2012	75.2 mm (3.0 in)
2013	36.8 mm (1.4 in)
2014	21.6 mm (0.9 in)
2015	51.0 mm (2.0 in)
2016	2.0 mm (0.08 in)
2017	186.0 mm (7.3 in)
2018	103.7 mm (4.1 in)
2019	20.0 mm (0.8 in)
2020	18.1 mm (0.7 in)
2021	252.7 mm (9.9 in)
2022	2.1 mm (0.08 in)
2023	28.7 mm (1.1 in)
2024	4.6 mm (0.18 in)
2025	18.3 mm (0.7 in)
2026	557.5 mm (21.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ulupalakua Rch 250, 1955 to 2026. The record is 65 days in 1962, marked on the chart; the median year is 25 days.

Longest dry spell (CDD) at Ulupalakua Rch 250 by year
Year	Longest dry spell (CDD)
1955	55 days
1956	18 days
1957	25 days
1958	27 days
1959	50 days
1960	28 days
1961	32 days
1962	65 days
1963	26 days
1964	33 days
1965	22 days
1966	33 days
1967	20 days
1968	23 days
1969	25 days
1970	25 days
1971	22 days
1972	37 days
1973	47 days
1974	20 days
1975	34 days
1976	37 days
1977	39 days
1978	26 days
1979	37 days
1980	32 days
1981	34 days
1982	29 days
1983	18 days
1984	51 days
1985	18 days
1986	22 days
1987	25 days
1988	16 days
1989	25 days
1990	33 days
1991	15 days
1992	28 days
1993	36 days
1994	25 days
1995	17 days
1996	18 days
1997	17 days
1998	25 days
1999	24 days
2000	39 days
2001	36 days
2002	29 days
2003	32 days
2004	23 days
2005	22 days
2006	24 days
2007	26 days
2008	27 days
2009	20 days
2010	18 days
2011	21 days
2012	4 days
2013	5 days
2014	4 days
2015	5 days
2016	5 days
2017	4 days
2018	5 days
2019	14 days
2020	4 days
2021	4 days
2022	5 days
2023	4 days
2024	6 days
2025	16 days
2026	20 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.

Download the Data

Data for Ulupalakua Rch 250 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ulupalakua Rch 250 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).