Phnom Penh Intl Weather Records (CBM00048991)

Record envelope, standing records and threshold days for Phnom Penh Intl (CBM00048991), Cambodia, with 76 years of record.

Key Facts for Phnom Penh Intl

Phnom Penh Intl (CBM00048991) is a weather station in Cambodia at 11.55 latitude and 104.84 longitude, 12 m (40 ft) above sea level.
The station reports from 1950 to 2025, 76 years of record.
1,464 records set at Phnom Penh Intl still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Cambodia, 11.55 latitude, 104.84 longitude.
Elevation: 12 m (40 ft).
Period of record: 1950 to 2025, 76 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

5 days at or beyond a record

The band shows the record high and record low for each calendar day at Phnom Penh Intl. The lines show the 2026 daily maximum and minimum. 5 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Phnom Penh Intl, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	35.0 C (95.0 F)	12.8 C (55.0 F)	n/a	20.3 C (68.5 F)
Feb	36.1 C (97.0 F)	16.5 C (61.7 F)	n/a	22.0 C (71.6 F)
Mar	37.8 C (100.0 F)	18.9 C (66.0 F)	34.1 C (93.4 F)	23.8 C (74.8 F)
Apr	38.9 C (102.0 F)	18.9 C (66.0 F)	n/a	24.2 C (75.6 F)
May	39.0 C (102.2 F)	21.1 C (70.0 F)	n/a	24.8 C (76.6 F)
Jun	39.0 C (102.2 F)	20.0 C (68.0 F)	32.3 C (90.1 F)	24.9 C (76.8 F)
Jul	37.2 C (99.0 F)	20.0 C (68.0 F)	33.9 C (93.0 F)	25.1 C (77.2 F)
Aug	37.8 C (100.0 F)	19.3 C (66.7 F)	36.1 C (97.0 F)	25.7 C (78.3 F)
Sep	35.0 C (95.0 F)	21.1 C (70.0 F)	n/a	n/a
Oct	36.1 C (97.0 F)	20.0 C (68.0 F)	n/a	n/a
Nov	34.2 C (93.6 F)	17.2 C (63.0 F)	n/a	n/a
Dec	36.1 C (97.0 F)	16.1 C (61.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Phnom Penh Intl still stand. 1955 holds the most, with 107.

Standing records at Phnom Penh Intl by the year they were set
Year set	Standing records
1950	8
1951	7
1952	76
1953	87
1954	100
1955	107
1956	61
1957	73
1958	82
1959	75
1960	25
1961	39
1962	11
1963	30
1964	34
1965	56
1973	8
1974	5
1993	27
1994	31
1995	10
2007	8
2008	12
2009	22
2010	8
2011	24
2012	29
2013	27
2014	12
2015	31
2016	53
2017	13
2018	29
2019	12
2020	22
2021	25
2022	46
2023	74
2024	60
2025	5

Wettest Day of Each Month

May: 160.0 mm (6.3 in)

The wettest day on record for each calendar month at Phnom Penh Intl. The most was 160.0 mm (6.3 in) on 27 May 1958.

Record daily precipitation for each month at Phnom Penh Intl
Month	Record daily precipitation (mm)	Date
Jan	41.4 mm (1.6 in)	11 January 2023
Feb	102.1 mm (4.0 in)	24 February 1994
Mar	47.0 mm (1.9 in)	11 March 2025
Apr	59.9 mm (2.4 in)	22 April 1955
May	160.0 mm (6.3 in)	27 May 1958
Jun	119.9 mm (4.7 in)	4 June 1961
Jul	100.6 mm (4.0 in)	5 July 2023
Aug	91.9 mm (3.6 in)	20 August 2023
Sep	126.0 mm (5.0 in)	2 September 2024
Oct	132.6 mm (5.2 in)	5 October 2024
Nov	152.9 mm (6.0 in)	3 November 2024
Dec	98.6 mm (3.9 in)	7 December 2022

Period of Record Coverage

1950 to 2025

28 years of record at Phnom Penh Intl, 1950 to 2025. 28 years have data for under 90 percent of days and are left out of rankings: 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957 and others.

Days with data per year at Phnom Penh Intl
Year	Days with data	Share of year	Complete
1950	8	2%	No
1951	12	3%	No
1952	124	34%	No
1953	191	52%	No
1954	173	47%	No
1955	204	56%	No
1956	149	41%	No
1957	189	52%	No
1958	198	54%	No
1959	200	55%	No
1960	74	20%	No
1961	88	24%	No
1962	41	11%	No
1963	178	49%	No
1964	157	43%	No
1965	167	46%	No
1973	9	2%	No
1974	1	0%	No
1993	71	19%	No
1994	63	17%	No
1995	15	4%	No
1996	1	0%	No
1998	1	0%	No
2014	1	0%	No
2022	52	14%	No
2023	106	29%	No
2024	63	17%	No
2025	12	3%	No

Latest Records

No records were set at this station in the latest data.

Extremes by Year

1950 to 2025

Yearly extremes at Phnom Penh Intl: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.0 C (102.2 F)	2023	37.2 C (99.0 F)	28
Coldest night (TNn)	12.8 C (55.0 F)	1955	17.8 C (64.0 F)	41
Wettest day (Rx1day)	160.0 mm (6.3 in)	1958	44.5 mm (1.8 in)	36
Wettest five days (Rx5day)	257.8 mm (10.1 in)	2024	85.4 mm (3.4 in)	19
Longest dry spell (CDD)	31 days	2023	3 days	36

Hottest day (TXx)

The hottest day of the year at Phnom Penh Intl, 1950 to 2025. The record is 39.0 C (102.2 F) in 2023, marked on the chart; the median year is 37.2 C (99.0 F).

Hottest day (TXx) at Phnom Penh Intl by year
Year	Hottest day (TXx)
1950	37.8 C (100.0 F)
1951	32.8 C (91.0 F)
1952	37.2 C (99.0 F)
1953	37.2 C (99.0 F)
1954	37.8 C (100.0 F)
1955	38.9 C (102.0 F)
1956	37.2 C (99.0 F)
1957	37.8 C (100.0 F)
1958	38.9 C (102.0 F)
1959	37.8 C (100.0 F)
1960	37.8 C (100.0 F)
1961	37.2 C (99.0 F)
1962	37.8 C (100.0 F)
1963	38.9 C (102.0 F)
1964	37.2 C (99.0 F)
1965	38.9 C (102.0 F)
1973	36.0 C (96.8 F)
1974	30.0 C (86.0 F)
1993	36.5 C (97.7 F)
1994	36.1 C (97.0 F)
1995	35.2 C (95.4 F)
1996	33.0 C (91.4 F)
1998	30.5 C (86.9 F)
2004	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	32.3 C (90.1 F)
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	33.5 C (92.3 F)
2023	39.0 C (102.2 F)
2024	39.0 C (102.2 F)
2025	36.1 C (97.0 F)

Coldest night (TNn)

The coldest night of the year at Phnom Penh Intl, 1950 to 2025. The record is 12.8 C (55.0 F) in 1955, marked on the chart; the median year is 17.8 C (64.0 F).

Coldest night (TNn) at Phnom Penh Intl by year
Year	Coldest night (TNn)
1950	20.0 C (68.0 F)
1951	17.8 C (64.0 F)
1952	17.2 C (63.0 F)
1953	17.2 C (63.0 F)
1954	17.2 C (63.0 F)
1955	12.8 C (55.0 F)
1956	16.1 C (61.0 F)
1957	17.2 C (63.0 F)
1958	17.8 C (64.0 F)
1959	17.8 C (64.0 F)
1960	17.2 C (63.0 F)
1961	22.2 C (72.0 F)
1962	18.9 C (66.0 F)
1963	20.0 C (68.0 F)
1964	17.8 C (64.0 F)
1965	17.2 C (63.0 F)
1973	20.0 C (68.0 F)
1974	17.0 C (62.6 F)
1993	16.8 C (62.2 F)
1994	17.2 C (63.0 F)
1995	17.0 C (62.6 F)
1996	n/a
1998	n/a
2004	23.5 C (74.3 F)
2007	17.9 C (64.2 F)
2008	20.2 C (68.4 F)
2009	17.8 C (64.0 F)
2010	20.0 C (68.0 F)
2011	17.7 C (63.9 F)
2012	20.9 C (69.6 F)
2013	18.7 C (65.7 F)
2014	15.3 C (59.5 F)
2015	19.1 C (66.4 F)
2016	16.5 C (61.7 F)
2017	16.5 C (61.7 F)
2018	19.3 C (66.7 F)
2019	18.7 C (65.7 F)
2020	18.5 C (65.3 F)
2021	14.5 C (58.1 F)
2022	19.3 C (66.7 F)
2023	21.1 C (70.0 F)
2024	22.7 C (72.9 F)
2025	20.3 C (68.5 F)

Wettest day (Rx1day)

The wettest day of the year at Phnom Penh Intl, 1950 to 2025. The record is 160.0 mm (6.3 in) in 1958, marked on the chart; the median year is 44.5 mm (1.8 in).

Wettest day (Rx1day) at Phnom Penh Intl by year
Year	Wettest day (Rx1day)
1950	6.1 mm (0.24 in)
1951	15.0 mm (0.6 in)
1952	110.0 mm (4.3 in)
1953	43.9 mm (1.7 in)
1954	70.1 mm (2.8 in)
1955	70.1 mm (2.8 in)
1956	45.0 mm (1.8 in)
1957	59.9 mm (2.4 in)
1958	160.0 mm (6.3 in)
1959	70.1 mm (2.8 in)
1960	29.0 mm (1.1 in)
1961	119.9 mm (4.7 in)
1962	38.1 mm (1.5 in)
1963	80.0 mm (3.1 in)
1964	51.1 mm (2.0 in)
1965	39.1 mm (1.5 in)
1973	39.1 mm (1.5 in)
1974	42.9 mm (1.7 in)
1993	77.0 mm (3.0 in)
1994	102.1 mm (4.0 in)
1995	n/a
1996	n/a
1998	0.0 mm (0.00 in)
2004	n/a
2007	n/a
2008	n/a
2009	8.9 mm (0.35 in)
2010	24.9 mm (1.0 in)
2011	n/a
2012	18.0 mm (0.7 in)
2013	23.9 mm (0.9 in)
2014	14.0 mm (0.6 in)
2015	15.0 mm (0.6 in)
2016	20.1 mm (0.8 in)
2017	50.0 mm (2.0 in)
2018	33.0 mm (1.3 in)
2019	23.9 mm (0.9 in)
2020	n/a
2021	52.1 mm (2.1 in)
2022	112.5 mm (4.4 in)
2023	107.4 mm (4.2 in)
2024	152.9 mm (6.0 in)
2025	47.0 mm (1.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Phnom Penh Intl, 1950 to 2025. The record is 257.8 mm (10.1 in) in 2024, marked on the chart; the median year is 85.4 mm (3.4 in).

Wettest five days (Rx5day) at Phnom Penh Intl by year
Year	Wettest five days (Rx5day)
1950	n/a
1951	n/a
1952	133.6 mm (5.3 in)
1953	78.6 mm (3.1 in)
1954	99.6 mm (3.9 in)
1955	80.8 mm (3.2 in)
1956	65.0 mm (2.6 in)
1957	138.6 mm (5.5 in)
1958	198.4 mm (7.8 in)
1959	73.4 mm (2.9 in)
1960	50.3 mm (2.0 in)
1961	37.0 mm (1.5 in)
1962	n/a
1963	87.1 mm (3.4 in)
1964	32.5 mm (1.3 in)
1965	85.4 mm (3.4 in)
1973	51.3 mm (2.0 in)
1974	n/a
1993	135.0 mm (5.3 in)
1994	n/a
1995	n/a
1996	n/a
1998	n/a
2004	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	160.8 mm (6.3 in)
2023	186.2 mm (7.3 in)
2024	257.8 mm (10.1 in)
2025	3.0 mm (0.12 in)

Longest dry spell (CDD)

The longest dry spell of the year at Phnom Penh Intl, 1950 to 2025. The record is 31 days in 2023, marked on the chart; the median year is 3 days.

Longest dry spell (CDD) at Phnom Penh Intl by year
Year	Longest dry spell (CDD)
1950	1 day
1951	1 day
1952	2 days
1953	3 days
1954	3 days
1955	4 days
1956	3 days
1957	3 days
1958	5 days
1959	6 days
1960	4 days
1961	4 days
1962	2 days
1963	5 days
1964	3 days
1965	4 days
1973	7 days
1974	3 days
1993	3 days
1994	3 days
1995	n/a
1996	n/a
1998	1 day
2004	n/a
2007	n/a
2008	n/a
2009	1 day
2010	1 day
2011	n/a
2012	1 day
2013	1 day
2014	1 day
2015	1 day
2016	1 day
2017	1 day
2018	1 day
2019	1 day
2020	n/a
2021	1 day
2022	8 days
2023	31 days
2024	30 days
2025	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 Phnom Penh Intl standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Phnom Penh Intl 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 2026-10-17 (17 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).