Record envelope, standing records and threshold days for Grove Farm 1021 (USC00510766), Hawaii, United States, with 59 years of record.
Key Facts for Grove Farm 1021
Grove Farm 1021 (USC00510766) is a weather station in Hawaii, United States at 21.97 latitude and -159.38 longitude, 61 m (200 ft) above sea level.
The station reports from 1905 to 1963, 59 years of record.
0 records set at Grove Farm 1021 still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Grove Farm 1021 set a daily record precipitation of 58.4 mm (2.3 in) on 4 April 1963.
About the Station
Location: Hawaii, United States, 21.97 latitude, -159.38 longitude.
Elevation: 61 m (200 ft).
Period of record: 1905 to 1963, 59 years.
Eligible elements: prcp.
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 Grove Farm 1021. 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 Grove Farm 1021, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
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Feb
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Mar
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Apr
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May
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Jun
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Jul
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Aug
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Sep
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Oct
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Nov
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Dec
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Which Years Hold Standing Records
0 standing records
0 records at Grove Farm 1021 still stand.
Standing records at Grove Farm 1021 by the year they were set
Year set
Standing records
All-Time Record Progression
1 new records
1 all-time records were set at Grove Farm 1021 between 25 January 1956 and 25 January 1956. Each dot is a new record.
When Grove Farm 1021 set new all-time records
Date
Kind
Detail
1956-01-25
Record daily precipitation
Record daily precipitation 282.7 mm (11.1 in)
Wettest Day of Each Month
Jan: 282.7 mm (11.1 in)
The wettest day on record for each calendar month at Grove Farm 1021. The most was 282.7 mm (11.1 in) on 25 January 1956.
Record daily precipitation for each month at Grove Farm 1021
Yearly extremes at Grove Farm 1021: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Wettest day (Rx1day)
282.7 mm (11.1 in)
1956
102.9 mm (4.1 in)
59
Wettest five days (Rx5day)
400.1 mm (15.8 in)
1921
164.7 mm (6.5 in)
59
Longest dry spell (CDD)
23 days
1919
11 days
59
Wettest day (Rx1day)
The wettest day of the year at Grove Farm 1021, 1905 to 1963. The record is 282.7 mm (11.1 in) in 1956, marked on the chart; the median year is 102.9 mm (4.1 in).
Wettest day (Rx1day) at Grove Farm 1021 by year
Year
Wettest day (Rx1day)
1905
71.4 mm (2.8 in)
1906
72.9 mm (2.9 in)
1907
175.3 mm (6.9 in)
1908
119.9 mm (4.7 in)
1909
132.3 mm (5.2 in)
1910
208.3 mm (8.2 in)
1911
99.1 mm (3.9 in)
1912
30.5 mm (1.2 in)
1913
90.2 mm (3.6 in)
1914
116.8 mm (4.6 in)
1915
102.9 mm (4.1 in)
1916
117.1 mm (4.6 in)
1917
99.1 mm (3.9 in)
1918
141.5 mm (5.6 in)
1919
118.6 mm (4.7 in)
1920
137.2 mm (5.4 in)
1921
212.9 mm (8.4 in)
1922
63.0 mm (2.5 in)
1923
142.2 mm (5.6 in)
1924
83.3 mm (3.3 in)
1925
41.9 mm (1.6 in)
1926
44.5 mm (1.8 in)
1927
259.6 mm (10.2 in)
1928
106.7 mm (4.2 in)
1929
156.0 mm (6.1 in)
1930
135.1 mm (5.3 in)
1931
34.0 mm (1.3 in)
1932
102.9 mm (4.1 in)
1933
84.3 mm (3.3 in)
1934
48.3 mm (1.9 in)
1935
66.0 mm (2.6 in)
1936
133.1 mm (5.2 in)
1937
122.9 mm (4.8 in)
1938
77.2 mm (3.0 in)
1939
100.6 mm (4.0 in)
1940
129.5 mm (5.1 in)
1941
40.1 mm (1.6 in)
1942
161.5 mm (6.4 in)
1943
84.3 mm (3.3 in)
1944
209.3 mm (8.2 in)
1945
118.6 mm (4.7 in)
1946
111.0 mm (4.4 in)
1947
97.0 mm (3.8 in)
1948
40.6 mm (1.6 in)
1949
170.7 mm (6.7 in)
1950
63.5 mm (2.5 in)
1951
69.9 mm (2.8 in)
1952
93.2 mm (3.7 in)
1953
45.7 mm (1.8 in)
1954
58.2 mm (2.3 in)
1955
106.4 mm (4.2 in)
1956
282.7 mm (11.1 in)
1957
191.8 mm (7.6 in)
1958
110.5 mm (4.4 in)
1959
66.0 mm (2.6 in)
1960
92.7 mm (3.6 in)
1961
125.0 mm (4.9 in)
1962
88.1 mm (3.5 in)
1963
152.9 mm (6.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Grove Farm 1021, 1905 to 1963. The record is 400.1 mm (15.8 in) in 1921, marked on the chart; the median year is 164.7 mm (6.5 in).
Wettest five days (Rx5day) at Grove Farm 1021 by year
Year
Wettest five days (Rx5day)
1905
128.1 mm (5.0 in)
1906
164.9 mm (6.5 in)
1907
385.6 mm (15.2 in)
1908
168.8 mm (6.6 in)
1909
302.5 mm (11.9 in)
1910
258.7 mm (10.2 in)
1911
160.4 mm (6.3 in)
1912
44.8 mm (1.8 in)
1913
139.7 mm (5.5 in)
1914
213.4 mm (8.4 in)
1915
209.4 mm (8.2 in)
1916
211.7 mm (8.3 in)
1917
163.4 mm (6.4 in)
1918
198.1 mm (7.8 in)
1919
200.5 mm (7.9 in)
1920
341.4 mm (13.4 in)
1921
400.1 mm (15.8 in)
1922
139.5 mm (5.5 in)
1923
171.5 mm (6.8 in)
1924
87.1 mm (3.4 in)
1925
62.8 mm (2.5 in)
1926
55.8 mm (2.2 in)
1927
154.3 mm (6.1 in)
1928
164.7 mm (6.5 in)
1929
172.2 mm (6.8 in)
1930
115.6 mm (4.6 in)
1931
61.5 mm (2.4 in)
1932
180.9 mm (7.1 in)
1933
198.9 mm (7.8 in)
1934
61.3 mm (2.4 in)
1935
152.3 mm (6.0 in)
1936
208.9 mm (8.2 in)
1937
178.5 mm (7.0 in)
1938
224.2 mm (8.8 in)
1939
193.0 mm (7.6 in)
1940
179.1 mm (7.1 in)
1941
68.0 mm (2.7 in)
1942
303.1 mm (11.9 in)
1943
182.6 mm (7.2 in)
1944
289.3 mm (11.4 in)
1945
217.7 mm (8.6 in)
1946
213.2 mm (8.4 in)
1947
248.9 mm (9.8 in)
1948
107.6 mm (4.2 in)
1949
272.1 mm (10.7 in)
1950
132.9 mm (5.2 in)
1951
97.3 mm (3.8 in)
1952
95.7 mm (3.8 in)
1953
81.5 mm (3.2 in)
1954
52.4 mm (2.1 in)
1955
34.8 mm (1.4 in)
1956
4.6 mm (0.18 in)
1957
32.5 mm (1.3 in)
1958
57.4 mm (2.3 in)
1959
21.0 mm (0.8 in)
1960
4.4 mm (0.17 in)
1961
59.0 mm (2.3 in)
1962
188.9 mm (7.4 in)
1963
65.0 mm (2.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Grove Farm 1021, 1905 to 1963. The record is 23 days in 1919, marked on the chart; the median year is 11 days.
Longest dry spell (CDD) at Grove Farm 1021 by year
Year
Longest dry spell (CDD)
1905
16 days
1906
12 days
1907
6 days
1908
12 days
1909
14 days
1910
11 days
1911
11 days
1912
6 days
1913
9 days
1914
16 days
1915
16 days
1916
16 days
1917
15 days
1918
8 days
1919
23 days
1920
12 days
1921
8 days
1922
13 days
1923
11 days
1924
16 days
1925
17 days
1926
10 days
1927
2 days
1928
6 days
1929
12 days
1930
12 days
1931
7 days
1932
3 days
1933
8 days
1934
8 days
1935
8 days
1936
3 days
1937
4 days
1938
7 days
1939
13 days
1940
13 days
1941
18 days
1942
17 days
1943
11 days
1944
11 days
1945
16 days
1946
11 days
1947
10 days
1948
12 days
1949
11 days
1950
12 days
1951
15 days
1952
14 days
1953
11 days
1954
8 days
1955
10 days
1956
4 days
1957
7 days
1958
11 days
1959
14 days
1960
10 days
1961
12 days
1962
8 days
1963
4 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 Grove Farm 1021 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Grove Farm 1021 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.