H Sp A Exp STN 707 Weather Records (USC00512146)

Record envelope, standing records and threshold days for H Sp A Exp STN 707 (USC00512146), Hawaii, United States, with 78 years of record.

Key Facts for H Sp A Exp STN 707

H Sp A Exp STN 707 (USC00512146) is a weather station in Hawaii, United States at 21.30 latitude and -157.83 longitude, 15 m (49 ft) above sea level.
The station reports from 1899 to 1976, 78 years of record.
1,464 records set at H Sp A Exp STN 707 still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
H Sp A Exp STN 707 set a daily record precipitation of 37.3 mm (1.5 in) on 3 December 1975.

About the Station

Location: Hawaii, United States, 21.30 latitude, -157.83 longitude.
Elevation: 15 m (49 ft).
Period of record: 1899 to 1976, 78 years.
Eligible elements: prcp.

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 H Sp A Exp STN 707. 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 H Sp A Exp STN 707, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	27.8 C (82.0 F)	12.2 C (54.0 F)	n/a	n/a
Feb	27.8 C (82.0 F)	11.1 C (52.0 F)	n/a	n/a
Mar	28.3 C (82.9 F)	13.3 C (55.9 F)	n/a	n/a
Apr	29.4 C (84.9 F)	15.0 C (59.0 F)	n/a	n/a
May	30.6 C (87.1 F)	15.6 C (60.1 F)	n/a	n/a
Jun	31.1 C (88.0 F)	17.8 C (64.0 F)	n/a	n/a
Jul	31.1 C (88.0 F)	17.2 C (63.0 F)	n/a	n/a
Aug	31.7 C (89.1 F)	19.4 C (66.9 F)	n/a	n/a
Sep	31.1 C (88.0 F)	18.3 C (64.9 F)	n/a	n/a
Oct	30.6 C (87.1 F)	17.8 C (64.0 F)	n/a	n/a
Nov	28.9 C (84.0 F)	15.0 C (59.0 F)	n/a	n/a
Dec	28.3 C (82.9 F)	12.8 C (55.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at H Sp A Exp STN 707 still stand. 1900 holds the most, with 313.

Wettest Day of Each Month

Feb: 215.9 mm (8.5 in)

The wettest day on record for each calendar month at H Sp A Exp STN 707. The most was 215.9 mm (8.5 in) on 24 February 1955.

Record daily precipitation for each month at H Sp A Exp STN 707
Month	Record daily precipitation (mm)	Date
Jan	180.6 mm (7.1 in)	17 January 1949
Feb	215.9 mm (8.5 in)	24 February 1955
Mar	152.7 mm (6.0 in)	5 March 1958
Apr	82.0 mm (3.2 in)	3 April 1963
May	58.9 mm (2.3 in)	15 May 1963
Jun	20.3 mm (0.8 in)	30 June 1951
Jul	34.8 mm (1.4 in)	9 July 1965
Aug	57.2 mm (2.3 in)	7 August 1959
Sep	58.9 mm (2.3 in)	25 September 1903
Oct	83.1 mm (3.3 in)	11 October 1966
Nov	200.2 mm (7.9 in)	29 November 1954
Dec	204.2 mm (8.0 in)	18 December 1967

Period of Record Coverage

1899 to 1972

9 years of record at H Sp A Exp STN 707, 1899 to 1972. 4 years have data for under 90 percent of days and are left out of rankings: 1904, 1905, 1906, 1972.

Days with data per year at H Sp A Exp STN 707
Year	Days with data	Share of year	Complete
1899	361	99%	Yes
1900	364	100%	Yes
1901	333	91%	Yes
1902	341	93%	Yes
1903	340	93%	Yes
1904	203	55%	No
1905	300	82%	No
1906	120	33%	No
1972	31	8%	No

Latest Records

Latest records at H Sp A Exp STN 707
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
3 December 1975	H Sp A Exp STN 707, US	daily rain	37.3 mm (1.5 in)	23.8 mm (0.9 in)	6 years	22 of 100 (Routine)
27 November 1975	H Sp A Exp STN 707, US	daily rain	95.3 mm (3.8 in)	75.7 mm (3.0 in)	24 years	54 of 100 (Notable)
25 November 1975	H Sp A Exp STN 707, US	daily rain	32.8 mm (1.3 in)	20.4 mm (0.8 in)	8 years	20 of 100 (Routine)
24 November 1975	H Sp A Exp STN 707, US	daily rain	30.7 mm (1.2 in)	12.9 mm (0.5 in)	28 years	22 of 100 (Routine)
8 April 1975	H Sp A Exp STN 707, US	daily rain	13.7 mm (0.5 in)	5.6 mm (0.22 in)	12 years	17 of 100 (Routine)
29 March 1975	H Sp A Exp STN 707, US	daily rain	11.4 mm (0.4 in)	4.3 mm (0.17 in)	72 years	20 of 100 (Routine)
25 January 1975	H Sp A Exp STN 707, US	daily rain	25.7 mm (1.0 in)	0.3 mm (0.01 in)	17 years	12 of 100 (Routine)
12 January 1975	H Sp A Exp STN 707, US	daily rain	121.2 mm (4.8 in)	78.8 mm (3.1 in)	19 years	52 of 100 (Notable)
11 January 1975	H Sp A Exp STN 707, US	daily rain	56.1 mm (2.2 in)	14.2 mm (0.6 in)	72 years	35 of 100 (Notable)
26 December 1974	H Sp A Exp STN 707, US	daily rain	9.9 mm (0.39 in)	3.0 mm (0.12 in)	71 years	20 of 100 (Routine)
10 November 1974	H Sp A Exp STN 707, US	daily rain	16.5 mm (0.6 in)	2.8 mm (0.11 in)	3 years	8 of 100 (Routine)
16 October 1974	H Sp A Exp STN 707, US	daily rain	22.9 mm (0.9 in)	10.7 mm (0.4 in)	19 years	20 of 100 (Routine)
4 October 1974	H Sp A Exp STN 707, US	daily rain	23.9 mm (0.9 in)	10.2 mm (0.4 in)	1 year	18 of 100 (Routine)
10 September 1974	H Sp A Exp STN 707, US	daily rain	12.2 mm (0.5 in)	2.3 mm (0.09 in)	68 years	20 of 100 (Routine)
6 September 1974	H Sp A Exp STN 707, US	daily rain	10.4 mm (0.4 in)	1.5 mm (0.06 in)	71 years	20 of 100 (Routine)
17 July 1974	H Sp A Exp STN 707, US	daily rain	14.0 mm (0.6 in)	1.0 mm (0.04 in)	12 years	12 of 100 (Routine)
16 July 1974	H Sp A Exp STN 707, US	daily rain	6.4 mm (0.25 in)	1.8 mm (0.07 in)	21 years	18 of 100 (Routine)
19 June 1974	H Sp A Exp STN 707, US	daily rain	19.3 mm (0.8 in)	11.9 mm (0.5 in)	11 years	20 of 100 (Routine)
22 April 1974	H Sp A Exp STN 707, US	daily rain	8.4 mm (0.33 in)	1.5 mm (0.06 in)	4 years	10 of 100 (Routine)
19 March 1974	H Sp A Exp STN 707, US	daily rain	22.1 mm (0.9 in)	7.6 mm (0.30 in)	72 years	20 of 100 (Routine)

Extremes by Year

1899 to 1976

Yearly extremes at H Sp A Exp STN 707: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	31.7 C (89.1 F)	1900	30.6 C (87.1 F)	9
Coldest night (TNn)	11.1 C (52.0 F)	1902	12.2 C (54.0 F)	9
Wettest day (Rx1day)	215.9 mm (8.5 in)	1955	89.6 mm (3.5 in)	38
Wettest five days (Rx5day)	450.9 mm (17.8 in)	1904	151.9 mm (6.0 in)	38
Longest dry spell (CDD)	26 days	1972	17 days	38

Hottest day (TXx)

The hottest day of the year at H Sp A Exp STN 707, 1899 to 1976. The record is 31.7 C (89.1 F) in 1900, marked on the chart; the median year is 30.6 C (87.1 F).

Hottest day (TXx) at H Sp A Exp STN 707 by year
Year	Hottest day (TXx)
1899	30.6 C (87.1 F)
1900	31.7 C (89.1 F)
1901	31.1 C (88.0 F)
1902	30.6 C (87.1 F)
1903	30.6 C (87.1 F)
1904	31.1 C (88.0 F)
1905	29.4 C (84.9 F)
1906	28.3 C (82.9 F)
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	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	27.8 C (82.0 F)
1973	n/a
1974	n/a
1975	n/a
1976	n/a

Coldest night (TNn)

The coldest night of the year at H Sp A Exp STN 707, 1899 to 1976. The record is 11.1 C (52.0 F) in 1902, marked on the chart; the median year is 12.2 C (54.0 F).

Coldest night (TNn) at H Sp A Exp STN 707 by year
Year	Coldest night (TNn)
1899	13.3 C (55.9 F)
1900	12.8 C (55.0 F)
1901	12.2 C (54.0 F)
1902	11.1 C (52.0 F)
1903	11.7 C (53.1 F)
1904	12.8 C (55.0 F)
1905	12.2 C (54.0 F)
1906	12.2 C (54.0 F)
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	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	12.2 C (54.0 F)
1973	n/a
1974	n/a
1975	n/a
1976	n/a

Wettest day (Rx1day)

The wettest day of the year at H Sp A Exp STN 707, 1899 to 1976. The record is 215.9 mm (8.5 in) in 1955, marked on the chart; the median year is 89.6 mm (3.5 in).

Wettest day (Rx1day) at H Sp A Exp STN 707 by year
Year	Wettest day (Rx1day)
1899	59.2 mm (2.3 in)
1900	138.4 mm (5.4 in)
1901	146.3 mm (5.8 in)
1902	81.3 mm (3.2 in)
1903	58.9 mm (2.3 in)
1904	190.8 mm (7.5 in)
1905	32.5 mm (1.3 in)
1906	25.9 mm (1.0 in)
1947	37.3 mm (1.5 in)
1948	52.8 mm (2.1 in)
1949	180.6 mm (7.1 in)
1950	108.7 mm (4.3 in)
1951	108.7 mm (4.3 in)
1952	61.0 mm (2.4 in)
1953	35.1 mm (1.4 in)
1954	200.2 mm (7.9 in)
1955	215.9 mm (8.5 in)
1956	74.4 mm (2.9 in)
1957	145.0 mm (5.7 in)
1958	152.7 mm (6.0 in)
1959	60.7 mm (2.4 in)
1960	40.6 mm (1.6 in)
1961	83.8 mm (3.3 in)
1962	40.4 mm (1.6 in)
1963	134.1 mm (5.3 in)
1964	52.3 mm (2.1 in)
1965	130.0 mm (5.1 in)
1966	125.2 mm (4.9 in)
1967	204.2 mm (8.0 in)
1968	114.6 mm (4.5 in)
1969	95.3 mm (3.8 in)
1970	43.4 mm (1.7 in)
1971	60.2 mm (2.4 in)
1972	123.2 mm (4.9 in)
1973	105.2 mm (4.1 in)
1974	65.5 mm (2.6 in)
1975	121.2 mm (4.8 in)
1976	0.0 mm (0.00 in)

Wettest five days (Rx5day)

The wettest five days of the year at H Sp A Exp STN 707, 1899 to 1976. The record is 450.9 mm (17.8 in) in 1904, marked on the chart; the median year is 151.9 mm (6.0 in).

Wettest five days (Rx5day) at H Sp A Exp STN 707 by year
Year	Wettest five days (Rx5day)
1899	87.2 mm (3.4 in)
1900	153.1 mm (6.0 in)
1901	204.7 mm (8.1 in)
1902	158.4 mm (6.2 in)
1903	88.2 mm (3.5 in)
1904	450.9 mm (17.8 in)
1905	41.6 mm (1.6 in)
1906	30.3 mm (1.2 in)
1947	43.1 mm (1.7 in)
1948	172.7 mm (6.8 in)
1949	234.7 mm (9.2 in)
1950	150.6 mm (5.9 in)
1951	211.4 mm (8.3 in)
1952	118.2 mm (4.7 in)
1953	66.3 mm (2.6 in)
1954	210.6 mm (8.3 in)
1955	331.2 mm (13.0 in)
1956	112.5 mm (4.4 in)
1957	308.1 mm (12.1 in)
1958	167.5 mm (6.6 in)
1959	98.6 mm (3.9 in)
1960	80.4 mm (3.2 in)
1961	102.1 mm (4.0 in)
1962	53.4 mm (2.1 in)
1963	202.2 mm (8.0 in)
1964	90.1 mm (3.5 in)
1965	346.7 mm (13.6 in)
1966	218.8 mm (8.6 in)
1967	229.2 mm (9.0 in)
1968	219.3 mm (8.6 in)
1969	169.0 mm (6.7 in)
1970	62.8 mm (2.5 in)
1971	111.2 mm (4.4 in)
1972	181.1 mm (7.1 in)
1973	143.1 mm (5.6 in)
1974	88.9 mm (3.5 in)
1975	261.9 mm (10.3 in)
1976	0.0 mm (0.00 in)

Longest dry spell (CDD)

The longest dry spell of the year at H Sp A Exp STN 707, 1899 to 1976. The record is 26 days in 1972, marked on the chart; the median year is 17 days.

Longest dry spell (CDD) at H Sp A Exp STN 707 by year
Year	Longest dry spell (CDD)
1899	17 days
1900	23 days
1901	23 days
1902	14 days
1903	17 days
1904	13 days
1905	19 days
1906	15 days
1947	12 days
1948	11 days
1949	17 days
1950	11 days
1951	12 days
1952	18 days
1953	20 days
1954	16 days
1955	23 days
1956	13 days
1957	19 days
1958	16 days
1959	24 days
1960	17 days
1961	16 days
1962	21 days
1963	19 days
1964	13 days
1965	13 days
1966	25 days
1967	16 days
1968	13 days
1969	19 days
1970	25 days
1971	24 days
1972	26 days
1973	19 days
1974	21 days
1975	19 days
1976	6 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

34 years, 1899 to 1975

A day with at least 93.6 mm (3.7 in) of rain is expected about once in 2 years. A day with at least 263.8 mm (10.4 in) of rain is expected about once in 100 years.

Rainfall return levels at H Sp A Exp STN 707: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	93.6 mm (3.7 in)
5 years	141.5 mm (5.6 in)
10 years	172.2 mm (6.8 in)
25 years	210.0 mm (8.3 in)
50 years	237.3 mm (9.3 in)	Longer than the 34 years of record
100 years	263.8 mm (10.4 in)	Longer than the 34 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, 34 years of values from 1899 to 1975.

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: 215.9 mm (8.5 in) in 1955; 204.2 mm (8.0 in) in 1967; 200.2 mm (7.9 in) in 1954.

Download the Data

Data for H Sp A Exp STN 707 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for H Sp A Exp STN 707 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).