Hong Kong Observatory Weather Records (CHM00045005)

Record envelope, standing records and threshold days for Hong Kong Observatory (CHM00045005), China, with 47 years of record.

Key Facts for Hong Kong Observatory

Hong Kong Observatory (CHM00045005) is a weather station in China at 22.30 latitude and 114.17 longitude, 62 m (203 ft) above sea level.
The station reports from 1946 to 1992, 47 years of record.
1,464 records set at Hong Kong Observatory still stand.
Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
Hong Kong Observatory set a daily record low maximum temperature of 27.8 C (82.0 F) on 28 June 1992.

About the Station

Location: China, 22.30 latitude, 114.17 longitude.
Elevation: 62 m (203 ft).
Period of record: 1946 to 1992, 47 years.
Eligible elements: tmax, tmin.

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 Hong Kong Observatory. 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 Hong Kong Observatory, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	27.2 C (81.0 F)	3.9 C (39.0 F)	n/a	n/a
Feb	28.0 C (82.4 F)	3.9 C (39.0 F)	n/a	n/a
Mar	30.0 C (86.0 F)	5.8 C (42.4 F)	n/a	n/a
Apr	33.3 C (91.9 F)	12.0 C (53.6 F)	n/a	n/a
May	35.0 C (95.0 F)	17.8 C (64.0 F)	n/a	n/a
Jun	38.0 C (100.4 F)	15.2 C (59.4 F)	n/a	n/a
Jul	35.6 C (96.1 F)	21.7 C (71.1 F)	n/a	n/a
Aug	36.1 C (97.0 F)	21.0 C (69.8 F)	n/a	n/a
Sep	34.0 C (93.2 F)	21.1 C (70.0 F)	n/a	n/a
Oct	33.3 C (91.9 F)	13.0 C (55.4 F)	n/a	n/a
Nov	32.2 C (90.0 F)	7.6 C (45.7 F)	n/a	n/a
Dec	29.4 C (84.9 F)	4.0 C (39.2 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Hong Kong Observatory still stand. 1953 holds the most, with 67.

Standing records at Hong Kong Observatory by the year they were set
Year set	Standing records
1946	20
1947	47
1948	45
1949	40
1950	65
1951	41
1952	55
1953	67
1954	53
1955	30
1956	49
1957	43
1958	35
1959	44
1960	39
1961	25
1962	45
1973	52
1974	50
1975	45
1976	42
1977	57
1978	36
1979	31
1980	36
1981	38
1982	19
1983	44
1984	33
1985	25
1986	16
1987	57
1988	29
1989	29
1990	39
1991	32
1992	11

All-Time Record Progression

2 new records

2 all-time records were set at Hong Kong Observatory between 21 August 1990 and 28 December 1991. Each dot is a new record.

When Hong Kong Observatory set new all-time records
Date	Kind	Detail
1990-08-21	Record high minimum temperature	Record high minimum temperature 29.2 C (84.6 F)
1991-12-28	Record low maximum temperature	Record low maximum temperature 6.4 C (43.5 F)

Wettest Day of Each Month

May: 324.1 mm (12.8 in)

The wettest day on record for each calendar month at Hong Kong Observatory. The most was 324.1 mm (12.8 in) on 8 May 1992.

Record daily precipitation for each month at Hong Kong Observatory
Month	Record daily precipitation (mm)	Date
Jan	50.0 mm (2.0 in)	3 January 1956
Feb	80.0 mm (3.1 in)	11 February 1949
Mar	120.9 mm (4.8 in)	3 March 1992
Apr	130.0 mm (5.1 in)	1 April 1955
May	324.1 mm (12.8 in)	8 May 1992
Jun	164.1 mm (6.5 in)	25 June 1949
Jul	173.0 mm (6.8 in)	1 July 1947
Aug	134.9 mm (5.3 in)	18 August 1955
Sep	168.9 mm (6.6 in)	8 September 1949
Oct	98.0 mm (3.9 in)	5 October 1950
Nov	117.1 mm (4.6 in)	15 November 1949
Dec	59.9 mm (2.4 in)	2 December 1953

Period of Record Coverage

1946 to 1992

37 years of record at Hong Kong Observatory, 1946 to 1992. 8 years have data for under 90 percent of days and are left out of rankings: 1946, 1955, 1956, 1957, 1958, 1982, 1983, 1992.

Days with data per year at Hong Kong Observatory
Year	Days with data	Share of year	Complete
1946	117	32%	No
1947	340	93%	Yes
1948	363	99%	Yes
1949	358	98%	Yes
1950	344	94%	Yes
1951	356	98%	Yes
1952	365	100%	Yes
1953	357	98%	Yes
1954	349	96%	Yes
1955	326	89%	No
1956	288	79%	No
1957	312	85%	No
1958	288	79%	No
1959	330	90%	Yes
1960	338	92%	Yes
1961	329	90%	Yes
1962	329	90%	Yes
1973	341	93%	Yes
1974	347	95%	Yes
1975	344	94%	Yes
1976	351	96%	Yes
1977	350	96%	Yes
1978	355	97%	Yes
1979	353	97%	Yes
1980	357	98%	Yes
1981	353	97%	Yes
1982	230	63%	No
1983	284	78%	No
1984	357	98%	Yes
1985	358	98%	Yes
1986	351	96%	Yes
1987	350	96%	Yes
1988	352	96%	Yes
1989	347	95%	Yes
1990	348	95%	Yes
1991	350	96%	Yes
1992	169	46%	No

Latest Records

Latest records at Hong Kong Observatory
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 June 1992	Hong Kong Observatory, CN	daily low max	27.8 C (82.0 F)	1.1 C (2.0 F)	41 years	21 of 100 (Routine)
26 June 1992	Hong Kong Observatory, CN	daily high min	28.5 C (83.3 F)	0.6 C (1.1 F)	9 years	9 of 100 (Routine)
8 June 1992	Hong Kong Observatory, CN	daily low max	24.4 C (75.9 F)	0.5 C (0.9 F)	6 years	7 of 100 (Routine)
7 June 1992	Hong Kong Observatory, CN	monthly low min	15.2 C (59.4 F)	5.9 C (10.6 F)	37 years	61 of 100 (Major)
12 May 1992	Hong Kong Observatory, CN	daily low min	21.6 C (70.9 F)	0.1 C (0.2 F)	41 years	16 of 100 (Routine)
11 May 1992	Hong Kong Observatory, CN	daily low max	22.9 C (73.2 F)	0.1 C (0.2 F)	19 years	9 of 100 (Routine)
11 May 1992	Hong Kong Observatory, CN	daily low min (Tie)	21.0 C (69.8 F)	tie	14 years	2 of 100 (Routine)
10 May 1992	Hong Kong Observatory, CN	daily low max	21.8 C (71.2 F)	1.2 C (2.2 F)	12 years	11 of 100 (Routine)
1 May 1992	Hong Kong Observatory, CN	daily high min	26.1 C (79.0 F)	0.1 C (0.2 F)	19 years	9 of 100 (Routine)
30 April 1992	Hong Kong Observatory, CN	daily high min	25.4 C (77.7 F)	1.5 C (2.7 F)	34 years	19 of 100 (Routine)
11 April 1992	Hong Kong Observatory, CN	daily low min	15.0 C (59.0 F)	1.9 C (3.4 F)	4 years	11 of 100 (Routine)
16 March 1992	Hong Kong Observatory, CN	daily high min	22.7 C (72.9 F)	0.5 C (0.9 F)	36 years	15 of 100 (Routine)
29 December 1991	Hong Kong Observatory, CN	daily low min	5.2 C (41.4 F)	0.8 C (1.4 F)	14 years	10 of 100 (Routine)
28 December 1991	Hong Kong Observatory, CN	all-time low max	6.4 C (43.5 F)	0.8 C (1.4 F)	43 years	39 of 100 (Notable)
25 December 1991	Hong Kong Observatory, CN	daily high min	19.6 C (67.3 F)	0.7 C (1.3 F)	29 years	14 of 100 (Routine)
24 December 1991	Hong Kong Observatory, CN	daily high min	19.4 C (66.9 F)	0.4 C (0.7 F)	14 years	9 of 100 (Routine)
28 October 1991	Hong Kong Observatory, CN	daily low max	21.9 C (71.4 F)	0.1 C (0.2 F)	12 years	7 of 100 (Routine)
12 September 1991	Hong Kong Observatory, CN	daily high max	33.7 C (92.7 F)	0.4 C (0.7 F)	36 years	16 of 100 (Routine)
17 August 1991	Hong Kong Observatory, CN	daily low max	27.8 C (82.0 F)	0.5 C (0.9 F)	40 years	18 of 100 (Routine)
16 August 1991	Hong Kong Observatory, CN	daily low max	27.4 C (81.3 F)	0.4 C (0.7 F)	40 years	18 of 100 (Routine)

Climate Trend

13 complete years, 1947 to 1981

One stripe for each of 13 complete years at Hong Kong Observatory, 1947 to 1981. Blue stripes are years cooler than the station's own mean of 23.0 C (73.3 F); red stripes are warmer. The coolest year was 1947, at 22.4 C (72.2 F), and the warmest was 1979, at 23.4 C (74.1 F). The strongest colour marks a difference of 0.6 C (1.1 F).

Annual mean temperature at Hong Kong Observatory as warming stripes, 1947 to 1981
Year	Annual mean temperature	Difference from the station mean
1947	22.4 C	-0.59 C
1948	23.2 C	+0.24 C
1949	23.1 C	+0.12 C
1950	22.8 C	-0.18 C
1951	22.4 C	-0.54 C
1952	23.1 C	+0.10 C
1953	22.8 C	-0.20 C
1954	22.9 C	-0.02 C
1957	22.6 C	-0.37 C
1962	23.1 C	+0.15 C
1979	23.4 C	+0.45 C
1980	23.4 C	+0.43 C
1981	23.4 C	+0.43 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1946 to 1992

Yearly extremes at Hong Kong Observatory: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.0 C (100.4 F)	1981	34.2 C (93.6 F)	37
Coldest night (TNn)	3.9 C (39.0 F)	1948	6.1 C (43.0 F)	37
Wettest day (Rx1day)	324.1 mm (12.8 in)	1992	56.4 mm (2.2 in)	22
Wettest five days (Rx5day)	411.0 mm (16.2 in)	1992	109.8 mm (4.3 in)	22
Longest dry spell (CDD)	32 days	1992	14 days	22

Hottest day (TXx)

The hottest day of the year at Hong Kong Observatory, 1946 to 1992. The record is 38.0 C (100.4 F) in 1981, marked on the chart; the median year is 34.2 C (93.6 F).

Hottest day (TXx) at Hong Kong Observatory by year
Year	Hottest day (TXx)
1946	33.9 C (93.0 F)
1947	35.0 C (95.0 F)
1948	33.3 C (91.9 F)
1949	35.6 C (96.1 F)
1950	33.9 C (93.0 F)
1951	33.9 C (93.0 F)
1952	33.3 C (91.9 F)
1953	36.1 C (97.0 F)
1954	35.6 C (96.1 F)
1955	33.3 C (91.9 F)
1956	35.0 C (95.0 F)
1957	33.9 C (93.0 F)
1958	35.0 C (95.0 F)
1959	32.8 C (91.0 F)
1960	37.2 C (99.0 F)
1961	33.9 C (93.0 F)
1962	35.0 C (95.0 F)
1973	33.0 C (91.4 F)
1974	34.0 C (93.2 F)
1975	34.0 C (93.2 F)
1976	35.0 C (95.0 F)
1977	35.0 C (95.0 F)
1978	34.0 C (93.2 F)
1979	34.0 C (93.2 F)
1980	35.0 C (95.0 F)
1981	38.0 C (100.4 F)
1982	34.8 C (94.6 F)
1983	33.9 C (93.0 F)
1984	34.4 C (93.9 F)
1985	33.0 C (91.4 F)
1986	34.8 C (94.6 F)
1987	34.2 C (93.6 F)
1988	33.8 C (92.8 F)
1989	34.3 C (93.7 F)
1990	36.1 C (97.0 F)
1991	34.5 C (94.1 F)
1992	32.8 C (91.0 F)

Coldest night (TNn)

The coldest night of the year at Hong Kong Observatory, 1946 to 1992. The record is 3.9 C (39.0 F) in 1948, marked on the chart; the median year is 6.1 C (43.0 F).

Coldest night (TNn) at Hong Kong Observatory by year
Year	Coldest night (TNn)
1946	9.4 C (48.9 F)
1947	5.6 C (42.1 F)
1948	3.9 C (39.0 F)
1949	6.1 C (43.0 F)
1950	6.1 C (43.0 F)
1951	5.0 C (41.0 F)
1952	4.4 C (39.9 F)
1953	8.3 C (46.9 F)
1954	6.1 C (43.0 F)
1955	4.4 C (39.9 F)
1956	3.9 C (39.0 F)
1957	3.9 C (39.0 F)
1958	7.2 C (45.0 F)
1959	6.1 C (43.0 F)
1960	7.2 C (45.0 F)
1961	7.2 C (45.0 F)
1962	6.1 C (43.0 F)
1973	7.0 C (44.6 F)
1974	4.0 C (39.2 F)
1975	4.0 C (39.2 F)
1976	6.0 C (42.8 F)
1977	6.0 C (42.8 F)
1978	7.0 C (44.6 F)
1979	6.0 C (42.8 F)
1980	4.0 C (39.2 F)
1981	9.0 C (48.2 F)
1982	8.9 C (48.0 F)
1983	6.1 C (43.0 F)
1984	7.0 C (44.6 F)
1985	8.8 C (47.8 F)
1986	5.8 C (42.4 F)
1987	7.6 C (45.7 F)
1988	9.5 C (49.1 F)
1989	7.6 C (45.7 F)
1990	7.0 C (44.6 F)
1991	5.2 C (41.4 F)
1992	8.4 C (47.1 F)

Wettest day (Rx1day)

The wettest day of the year at Hong Kong Observatory, 1946 to 1992. The record is 324.1 mm (12.8 in) in 1992, marked on the chart; the median year is 56.4 mm (2.2 in).

Wettest day (Rx1day) at Hong Kong Observatory by year
Year	Wettest day (Rx1day)
1946	56.9 mm (2.2 in)
1947	173.0 mm (6.8 in)
1948	163.1 mm (6.4 in)
1949	168.9 mm (6.6 in)
1950	102.1 mm (4.0 in)
1951	180.1 mm (7.1 in)
1952	156.0 mm (6.1 in)
1953	153.9 mm (6.1 in)
1954	93.0 mm (3.7 in)
1955	134.9 mm (5.3 in)
1956	55.9 mm (2.2 in)
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	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	n/a
1982	14.0 mm (0.6 in)
1983	3.0 mm (0.12 in)
1984	11.9 mm (0.5 in)
1985	14.0 mm (0.6 in)
1986	1.0 mm (0.04 in)
1987	1.0 mm (0.04 in)
1988	41.9 mm (1.6 in)
1989	18.0 mm (0.7 in)
1990	42.9 mm (1.7 in)
1991	18.0 mm (0.7 in)
1992	324.1 mm (12.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Hong Kong Observatory, 1946 to 1992. The record is 411.0 mm (16.2 in) in 1992, marked on the chart; the median year is 109.8 mm (4.3 in).

Wettest five days (Rx5day) at Hong Kong Observatory by year
Year	Wettest five days (Rx5day)
1946	90.9 mm (3.6 in)
1947	310.9 mm (12.2 in)
1948	321.0 mm (12.6 in)
1949	391.7 mm (15.4 in)
1950	216.9 mm (8.5 in)
1951	265.9 mm (10.5 in)
1952	409.0 mm (16.1 in)
1953	225.0 mm (8.9 in)
1954	128.6 mm (5.1 in)
1955	261.1 mm (10.3 in)
1956	183.0 mm (7.2 in)
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	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	n/a
1982	0.0 mm (0.00 in)
1983	3.0 mm (0.12 in)
1984	0.3 mm (0.01 in)
1985	3.0 mm (0.12 in)
1986	0.0 mm (0.00 in)
1987	0.0 mm (0.00 in)
1988	0.0 mm (0.00 in)
1989	0.0 mm (0.00 in)
1990	0.0 mm (0.00 in)
1991	11.2 mm (0.4 in)
1992	411.0 mm (16.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Hong Kong Observatory, 1946 to 1992. The record is 32 days in 1992, marked on the chart; the median year is 14 days.

Longest dry spell (CDD) at Hong Kong Observatory by year
Year	Longest dry spell (CDD)
1946	2 days
1947	6 days
1948	14 days
1949	14 days
1950	6 days
1951	7 days
1952	9 days
1953	7 days
1954	9 days
1955	4 days
1956	4 days
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	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	n/a
1982	19 days
1983	25 days
1984	15 days
1985	14 days
1986	16 days
1987	16 days
1988	19 days
1989	14 days
1990	12 days
1991	31 days
1992	32 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 Hong Kong Observatory standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hong Kong Observatory 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).