Record envelope, standing records and threshold days for Waiahole 837 (USC00518964), Hawaii, United States, with 83 years of record.
Key Facts for Waiahole 837
Waiahole 837 (USC00518964) is a weather station in Hawaii, United States at 21.47 latitude and -157.88 longitude, 227 m (745 ft) above sea level.
The station reports from 1942 to 2024, 83 years of record.
0 records set at Waiahole 837 still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Waiahole 837 set a daily record precipitation of 54.6 mm (2.1 in) on 16 May 2024.
About the Station
Location: Hawaii, United States, 21.47 latitude, -157.88 longitude.
Elevation: 227 m (745 ft).
Period of record: 1942 to 2024, 83 years.
Eligible elements: prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Waiahole 837. 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 Waiahole 837, 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 Waiahole 837 still stand.
Standing records at Waiahole 837 by the year they were set
Year set
Standing records
All-Time Record Progression
2 new records
2 all-time records were set at Waiahole 837 between 4 January 1988 and 20 March 1991. Each dot is a new record.
When Waiahole 837 set new all-time records
Date
Kind
Detail
1988-01-04
Record daily precipitation
Record daily precipitation 399.5 mm (15.7 in)
1991-03-20
Record daily precipitation
Record daily precipitation 482.6 mm (19.0 in)
Wettest Day of Each Month
Mar: 482.6 mm (19.0 in)
The wettest day on record for each calendar month at Waiahole 837. The most was 482.6 mm (19.0 in) on 20 March 1991.
Record daily precipitation for each month at Waiahole 837
Yearly extremes at Waiahole 837: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Wettest day (Rx1day)
482.6 mm (19.0 in)
1991
165.1 mm (6.5 in)
83
Wettest five days (Rx5day)
669.6 mm (26.4 in)
2012
115.9 mm (4.6 in)
78
Longest dry spell (CDD)
26 days
1944
6 days
83
Wettest day (Rx1day)
The wettest day of the year at Waiahole 837, 1942 to 2024. The record is 482.6 mm (19.0 in) in 1991, marked on the chart; the median year is 165.1 mm (6.5 in).
Wettest day (Rx1day) at Waiahole 837 by year
Year
Wettest day (Rx1day)
1942
268.0 mm (10.6 in)
1943
147.3 mm (5.8 in)
1944
182.9 mm (7.2 in)
1945
208.3 mm (8.2 in)
1946
119.4 mm (4.7 in)
1947
208.3 mm (8.2 in)
1948
273.1 mm (10.8 in)
1949
355.6 mm (14.0 in)
1950
174.0 mm (6.9 in)
1951
228.6 mm (9.0 in)
1952
143.5 mm (5.6 in)
1953
138.4 mm (5.4 in)
1954
182.9 mm (7.2 in)
1955
190.5 mm (7.5 in)
1956
138.4 mm (5.4 in)
1957
124.5 mm (4.9 in)
1958
325.9 mm (12.8 in)
1959
90.2 mm (3.6 in)
1960
110.7 mm (4.4 in)
1961
60.2 mm (2.4 in)
1962
67.8 mm (2.7 in)
1963
341.9 mm (13.5 in)
1964
160.5 mm (6.3 in)
1965
265.4 mm (10.4 in)
1966
106.4 mm (4.2 in)
1967
166.4 mm (6.6 in)
1968
233.2 mm (9.2 in)
1969
259.1 mm (10.2 in)
1970
232.2 mm (9.1 in)
1971
151.4 mm (6.0 in)
1972
132.1 mm (5.2 in)
1973
91.4 mm (3.6 in)
1974
117.3 mm (4.6 in)
1975
119.6 mm (4.7 in)
1976
110.5 mm (4.4 in)
1977
216.7 mm (8.5 in)
1978
175.0 mm (6.9 in)
1979
111.3 mm (4.4 in)
1980
240.0 mm (9.4 in)
1981
164.1 mm (6.5 in)
1982
165.4 mm (6.5 in)
1983
51.6 mm (2.0 in)
1984
182.9 mm (7.2 in)
1985
119.4 mm (4.7 in)
1986
139.7 mm (5.5 in)
1987
281.9 mm (11.1 in)
1988
399.5 mm (15.7 in)
1989
132.1 mm (5.2 in)
1990
199.4 mm (7.9 in)
1991
482.6 mm (19.0 in)
1992
165.1 mm (6.5 in)
1993
112.3 mm (4.4 in)
1994
200.7 mm (7.9 in)
1995
104.1 mm (4.1 in)
1996
188.0 mm (7.4 in)
1997
63.5 mm (2.5 in)
1998
55.4 mm (2.2 in)
1999
50.8 mm (2.0 in)
2000
102.1 mm (4.0 in)
2001
105.7 mm (4.2 in)
2002
345.4 mm (13.6 in)
2003
182.9 mm (7.2 in)
2004
292.1 mm (11.5 in)
2005
106.7 mm (4.2 in)
2006
180.3 mm (7.1 in)
2007
62.5 mm (2.5 in)
2008
188.0 mm (7.4 in)
2009
139.7 mm (5.5 in)
2010
154.9 mm (6.1 in)
2011
154.9 mm (6.1 in)
2012
327.7 mm (12.9 in)
2013
236.2 mm (9.3 in)
2014
182.9 mm (7.2 in)
2015
134.6 mm (5.3 in)
2016
172.7 mm (6.8 in)
2017
147.3 mm (5.8 in)
2018
267.0 mm (10.5 in)
2019
87.4 mm (3.4 in)
2020
73.7 mm (2.9 in)
2021
259.1 mm (10.2 in)
2022
69.9 mm (2.8 in)
2023
292.1 mm (11.5 in)
2024
199.1 mm (7.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at Waiahole 837, 1942 to 2024. The record is 669.6 mm (26.4 in) in 2012, marked on the chart; the median year is 115.9 mm (4.6 in).
Wettest five days (Rx5day) at Waiahole 837 by year
Year
Wettest five days (Rx5day)
1942
555.1 mm (21.9 in)
1943
219.2 mm (8.6 in)
1944
255.6 mm (10.1 in)
1945
344.8 mm (13.6 in)
1946
190.5 mm (7.5 in)
1947
330.0 mm (13.0 in)
1948
396.5 mm (15.6 in)
1949
463.3 mm (18.2 in)
1950
298.2 mm (11.7 in)
1951
443.9 mm (17.5 in)
1952
297.2 mm (11.7 in)
1953
208.2 mm (8.2 in)
1954
291.4 mm (11.5 in)
1955
357.9 mm (14.1 in)
1956
199.9 mm (7.9 in)
1957
401.8 mm (15.8 in)
1958
79.4 mm (3.1 in)
1959
37.9 mm (1.5 in)
1960
78.5 mm (3.1 in)
1961
73.5 mm (2.9 in)
1962
57.7 mm (2.3 in)
1963
187.3 mm (7.4 in)
1964
277.8 mm (10.9 in)
1965
480.8 mm (18.9 in)
1966
56.6 mm (2.2 in)
1967
76.7 mm (3.0 in)
1968
132.4 mm (5.2 in)
1969
121.6 mm (4.8 in)
1970
256.6 mm (10.1 in)
1971
56.8 mm (2.2 in)
1972
90.9 mm (3.6 in)
1973
106.4 mm (4.2 in)
1974
53.3 mm (2.1 in)
1975
40.3 mm (1.6 in)
1976
38.1 mm (1.5 in)
1977
64.2 mm (2.5 in)
1978
44.5 mm (1.8 in)
1979
223.1 mm (8.8 in)
1980
n/a
1981
33.5 mm (1.3 in)
1982
143.3 mm (5.6 in)
1983
102.6 mm (4.0 in)
1984
76.8 mm (3.0 in)
1985
123.7 mm (4.9 in)
1986
117.3 mm (4.6 in)
1987
148.1 mm (5.8 in)
1988
417.0 mm (16.4 in)
1989
240.0 mm (9.4 in)
1990
104.6 mm (4.1 in)
1991
334.9 mm (13.2 in)
1992
114.4 mm (4.5 in)
1993
76.8 mm (3.0 in)
1994
n/a
1995
78.3 mm (3.1 in)
1996
57.4 mm (2.3 in)
1997
55.1 mm (2.2 in)
1998
10.8 mm (0.4 in)
1999
n/a
2000
22.3 mm (0.9 in)
2001
42.6 mm (1.7 in)
2002
37.4 mm (1.5 in)
2003
5.6 mm (0.22 in)
2004
70.4 mm (2.8 in)
2005
19.3 mm (0.8 in)
2006
392.2 mm (15.4 in)
2007
46.5 mm (1.8 in)
2008
128.6 mm (5.1 in)
2009
14.5 mm (0.6 in)
2010
200.5 mm (7.9 in)
2011
206.4 mm (8.1 in)
2012
669.6 mm (26.4 in)
2013
248.9 mm (9.8 in)
2014
229.5 mm (9.0 in)
2015
176.0 mm (6.9 in)
2016
18.1 mm (0.7 in)
2017
55.4 mm (2.2 in)
2018
89.6 mm (3.5 in)
2019
204.2 mm (8.0 in)
2020
13.2 mm (0.5 in)
2021
95.5 mm (3.8 in)
2022
n/a
2023
n/a
2024
33.8 mm (1.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Waiahole 837, 1942 to 2024. The record is 26 days in 1944, marked on the chart; the median year is 6 days.
Longest dry spell (CDD) at Waiahole 837 by year
Year
Longest dry spell (CDD)
1942
9 days
1943
9 days
1944
26 days
1945
18 days
1946
12 days
1947
25 days
1948
13 days
1949
12 days
1950
9 days
1951
8 days
1952
12 days
1953
14 days
1954
7 days
1955
8 days
1956
6 days
1957
7 days
1958
8 days
1959
7 days
1960
7 days
1961
8 days
1962
5 days
1963
6 days
1964
5 days
1965
5 days
1966
5 days
1967
7 days
1968
8 days
1969
7 days
1970
6 days
1971
7 days
1972
9 days
1973
6 days
1974
4 days
1975
5 days
1976
5 days
1977
4 days
1978
8 days
1979
7 days
1980
4 days
1981
4 days
1982
5 days
1983
9 days
1984
11 days
1985
6 days
1986
5 days
1987
2 days
1988
4 days
1989
5 days
1990
4 days
1991
6 days
1992
7 days
1993
7 days
1994
4 days
1995
7 days
1996
8 days
1997
6 days
1998
10 days
1999
4 days
2000
7 days
2001
6 days
2002
4 days
2003
6 days
2004
8 days
2005
19 days
2006
7 days
2007
4 days
2008
9 days
2009
20 days
2010
9 days
2011
6 days
2012
4 days
2013
4 days
2014
4 days
2015
3 days
2016
4 days
2017
4 days
2018
3 days
2019
4 days
2020
4 days
2021
4 days
2022
3 days
2023
4 days
2024
3 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 Waiahole 837 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Waiahole 837 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.