Potou Weather Records (CHM00054618)

Record envelope, standing records and threshold days for Potou (CHM00054618), China, with 30 years of record.

Key Facts for Potou

Potou (CHM00054618) is a weather station in China at 38.08 latitude and 116.55 longitude, 13 m (43 ft) above sea level.
The station reports from 1996 to 2025, 30 years of record.
1,464 records set at Potou still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: China, 38.08 latitude, 116.55 longitude.
Elevation: 13 m (43 ft).
Period of record: 1996 to 2025, 30 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

40 days at or beyond a record

The band shows the record high and record low for each calendar day at Potou. The lines show the 2026 daily maximum and minimum. 40 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Potou, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	16.4 C (61.5 F)	-19.2 C (-2.6 F)	12.0 C (53.6 F)	-10.4 C (13.3 F)
Feb	24.8 C (76.6 F)	-13.3 C (8.1 F)	18.7 C (65.7 F)	-12.2 C (10.0 F)
Mar	30.5 C (86.9 F)	-8.5 C (16.7 F)	28.6 C (83.5 F)	-1.5 C (29.3 F)
Apr	33.6 C (92.5 F)	-1.1 C (30.0 F)	31.7 C (89.1 F)	3.8 C (38.8 F)
May	38.8 C (101.8 F)	6.2 C (43.2 F)	36.5 C (97.7 F)	10.4 C (50.7 F)
Jun	41.6 C (106.9 F)	10.0 C (50.0 F)	39.6 C (103.3 F)	17.1 C (62.8 F)
Jul	41.0 C (105.8 F)	16.4 C (61.5 F)	38.2 C (100.8 F)	21.3 C (70.3 F)
Aug	36.8 C (98.2 F)	13.9 C (57.0 F)	36.8 C (98.2 F)	21.4 C (70.5 F)
Sep	36.1 C (97.0 F)	7.8 C (46.0 F)	n/a	n/a
Oct	31.3 C (88.3 F)	-1.8 C (28.8 F)	n/a	n/a
Nov	25.2 C (77.4 F)	-11.6 C (11.1 F)	n/a	n/a
Dec	18.8 C (65.8 F)	-15.4 C (4.3 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Potou still stand. 2002 holds the most, with 109.

Standing records at Potou by the year they were set
Year set	Standing records
1996	58
1997	60
1998	78
1999	63
2000	44
2001	61
2002	109
2003	41
2004	60
2005	79
2006	55
2007	38
2008	54
2009	65
2010	64
2011	31
2012	41
2013	41
2014	32
2015	17
2016	10
2017	12
2018	12
2019	8
2020	40
2021	43
2022	51
2023	94
2024	53
2025	50

Wettest Day of Each Month

Jul: 317.7 mm (12.5 in)

The wettest day on record for each calendar month at Potou. The most was 317.7 mm (12.5 in) on 14 July 1998.

Record daily precipitation for each month at Potou
Month	Record daily precipitation (mm)	Date
Jan	11.6 mm (0.5 in)	6 January 2001
Feb	20.1 mm (0.8 in)	19 February 1998
Mar	21.6 mm (0.9 in)	4 March 2007
Apr	51.7 mm (2.0 in)	24 April 2012
May	32.3 mm (1.3 in)	7 May 2020
Jun	132.5 mm (5.2 in)	19 June 2009
Jul	317.7 mm (12.5 in)	14 July 1998
Aug	183.3 mm (7.2 in)	9 August 2000
Sep	91.2 mm (3.6 in)	19 September 2021
Oct	137.0 mm (5.4 in)	11 October 2003
Nov	24.1 mm (0.9 in)	5 November 2023
Dec	12.2 mm (0.5 in)	14 December 2023

Period of Record Coverage

1996 to 2025

30 years of record at Potou, 1996 to 2025. 7 years have data for under 90 percent of days and are left out of rankings: 2013, 2015, 2016, 2017, 2018, 2019, 2025.

Days with data per year at Potou
Year	Days with data	Share of year	Complete
1996	366	100%	Yes
1997	365	100%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	366	100%	Yes
2001	365	100%	Yes
2002	365	100%	Yes
2003	365	100%	Yes
2004	366	100%	Yes
2005	365	100%	Yes
2006	365	100%	Yes
2007	365	100%	Yes
2008	366	100%	Yes
2009	365	100%	Yes
2010	365	100%	Yes
2011	365	100%	Yes
2012	366	100%	Yes
2013	183	50%	No
2014	343	94%	Yes
2015	96	26%	No
2016	1	0%	No
2017	2	1%	No
2018	31	8%	No
2019	72	20%	No
2020	364	99%	Yes
2021	360	99%	Yes
2022	360	99%	Yes
2023	347	95%	Yes
2024	344	94%	Yes
2025	234	64%	No

Latest Records

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

Climate Trend

22 complete years, 1996 to 2024

One stripe for each of 22 complete years at Potou, 1996 to 2024. Blue stripes are years cooler than the station's own mean of 14.2 C (57.6 F); red stripes are warmer. The coolest year was 1996, at 13.1 C (55.6 F), and the warmest was 2024, at 15.7 C (60.3 F). The strongest colour marks a difference of 1.5 C (2.7 F).

Annual mean temperature at Potou as warming stripes, 1996 to 2024
Year	Annual mean temperature	Difference from the station mean
1996	13.1 C	-1.09 C
1997	14.0 C	-0.27 C
1998	14.5 C	+0.27 C
1999	14.3 C	+0.05 C
2000	13.8 C	-0.39 C
2001	13.8 C	-0.43 C
2002	14.2 C	+0.01 C
2003	13.6 C	-0.67 C
2004	14.1 C	-0.12 C
2005	13.9 C	-0.32 C
2006	14.4 C	+0.15 C
2007	14.6 C	+0.41 C
2008	14.0 C	-0.19 C
2009	13.9 C	-0.36 C
2010	13.3 C	-0.96 C
2011	13.7 C	-0.51 C
2012	13.5 C	-0.76 C
2020	15.0 C	+0.77 C
2021	15.1 C	+0.87 C
2022	14.9 C	+0.66 C
2023	15.6 C	+1.40 C
2024	15.7 C	+1.50 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

1996 to 2025

Yearly extremes at Potou: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	41.6 C (106.9 F)	2024	38.5 C (101.2 F)	30
Coldest night (TNn)	-19.2 C (-2.6 F)	2021	-13.1 C (8.4 F)	30
Wettest day (Rx1day)	317.7 mm (12.5 in)	1998	77.3 mm (3.0 in)	30
Wettest five days (Rx5day)	319.8 mm (12.6 in)	1998	105.8 mm (4.2 in)	30
Longest dry spell (CDD)	88 days	1996	49 days	30

Hottest day (TXx)

The hottest day of the year at Potou, 1996 to 2025. The record is 41.6 C (106.9 F) in 2024, marked on the chart; the median year is 38.5 C (101.2 F).

Hottest day (TXx) at Potou by year
Year	Hottest day (TXx)
1996	39.3 C (102.7 F)
1997	39.7 C (103.5 F)
1998	39.1 C (102.4 F)
1999	39.8 C (103.6 F)
2000	39.7 C (103.5 F)
2001	37.5 C (99.5 F)
2002	41.0 C (105.8 F)
2003	37.4 C (99.3 F)
2004	37.7 C (99.9 F)
2005	41.1 C (106.0 F)
2006	37.6 C (99.7 F)
2007	37.8 C (100.0 F)
2008	36.7 C (98.1 F)
2009	38.4 C (101.1 F)
2010	38.5 C (101.3 F)
2011	36.3 C (97.3 F)
2012	37.4 C (99.3 F)
2013	36.4 C (97.5 F)
2014	38.8 C (101.8 F)
2015	39.3 C (102.7 F)
2016	8.2 C (46.8 F)
2017	7.1 C (44.8 F)
2018	37.6 C (99.7 F)
2019	30.1 C (86.2 F)
2020	38.5 C (101.3 F)
2021	37.8 C (100.0 F)
2022	41.0 C (105.8 F)
2023	40.8 C (105.4 F)
2024	41.6 C (106.9 F)
2025	39.6 C (103.3 F)

Coldest night (TNn)

The coldest night of the year at Potou, 1996 to 2025. The record is -19.2 C (-2.6 F) in 2021, marked on the chart; the median year is -13.1 C (8.4 F).

Coldest night (TNn) at Potou by year
Year	Coldest night (TNn)
1996	-13.5 C (7.7 F)
1997	-16.7 C (1.9 F)
1998	-15.8 C (3.6 F)
1999	-12.3 C (9.9 F)
2000	-18.1 C (-0.6 F)
2001	-18.5 C (-1.3 F)
2002	-14.6 C (5.7 F)
2003	-15.8 C (3.6 F)
2004	-14.8 C (5.4 F)
2005	-12.9 C (8.8 F)
2006	-13.3 C (8.1 F)
2007	-9.0 C (15.8 F)
2008	-12.8 C (9.0 F)
2009	-12.3 C (9.9 F)
2010	-15.6 C (3.9 F)
2011	-12.7 C (9.1 F)
2012	-12.2 C (10.0 F)
2013	-15.0 C (5.0 F)
2014	-11.4 C (11.5 F)
2015	-11.6 C (11.1 F)
2016	-17.3 C (0.9 F)
2017	-9.6 C (14.7 F)
2018	-12.5 C (9.5 F)
2019	-11.0 C (12.2 F)
2020	-13.8 C (7.2 F)
2021	-19.2 C (-2.6 F)
2022	-11.1 C (12.0 F)
2023	-15.4 C (4.3 F)
2024	-11.9 C (10.6 F)
2025	-12.2 C (10.0 F)

Wettest day (Rx1day)

The wettest day of the year at Potou, 1996 to 2025. The record is 317.7 mm (12.5 in) in 1998, marked on the chart; the median year is 77.3 mm (3.0 in).

Wettest day (Rx1day) at Potou by year
Year	Wettest day (Rx1day)
1996	47.5 mm (1.9 in)
1997	23.5 mm (0.9 in)
1998	317.7 mm (12.5 in)
1999	49.2 mm (1.9 in)
2000	183.3 mm (7.2 in)
2001	104.2 mm (4.1 in)
2002	30.0 mm (1.2 in)
2003	137.0 mm (5.4 in)
2004	47.8 mm (1.9 in)
2005	57.2 mm (2.3 in)
2006	104.0 mm (4.1 in)
2007	51.1 mm (2.0 in)
2008	89.4 mm (3.5 in)
2009	132.5 mm (5.2 in)
2010	64.8 mm (2.6 in)
2011	76.4 mm (3.0 in)
2012	65.4 mm (2.6 in)
2013	134.1 mm (5.3 in)
2014	29.0 mm (1.1 in)
2015	65.5 mm (2.6 in)
2016	71.9 mm (2.8 in)
2017	78.2 mm (3.1 in)
2018	149.1 mm (5.9 in)
2019	78.5 mm (3.1 in)
2020	52.6 mm (2.1 in)
2021	141.0 mm (5.6 in)
2022	105.4 mm (4.1 in)
2023	64.0 mm (2.5 in)
2024	156.2 mm (6.1 in)
2025	80.0 mm (3.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Potou, 1996 to 2025. The record is 319.8 mm (12.6 in) in 1998, marked on the chart; the median year is 105.8 mm (4.2 in).

Wettest five days (Rx5day) at Potou by year
Year	Wettest five days (Rx5day)
1996	67.2 mm (2.6 in)
1997	33.5 mm (1.3 in)
1998	319.8 mm (12.6 in)
1999	93.2 mm (3.7 in)
2000	311.3 mm (12.3 in)
2001	108.8 mm (4.3 in)
2002	51.0 mm (2.0 in)
2003	186.9 mm (7.4 in)
2004	61.5 mm (2.4 in)
2005	87.7 mm (3.5 in)
2006	145.3 mm (5.7 in)
2007	71.2 mm (2.8 in)
2008	90.2 mm (3.6 in)
2009	159.9 mm (6.3 in)
2010	112.0 mm (4.4 in)
2011	126.1 mm (5.0 in)
2012	108.3 mm (4.3 in)
2013	54.1 mm (2.1 in)
2014	26.6 mm (1.0 in)
2015	76.5 mm (3.0 in)
2016	120.9 mm (4.8 in)
2017	110.6 mm (4.4 in)
2018	48.1 mm (1.9 in)
2019	203.3 mm (8.0 in)
2020	68.4 mm (2.7 in)
2021	208.0 mm (8.2 in)
2022	194.5 mm (7.7 in)
2023	72.2 mm (2.8 in)
2024	186.0 mm (7.3 in)
2025	103.2 mm (4.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Potou, 1996 to 2025. The record is 88 days in 1996, marked on the chart; the median year is 49 days.

Longest dry spell (CDD) at Potou by year
Year	Longest dry spell (CDD)
1996	88 days
1997	53 days
1998	67 days
1999	76 days
2000	42 days
2001	48 days
2002	50 days
2003	64 days
2004	41 days
2005	85 days
2006	81 days
2007	64 days
2008	77 days
2009	49 days
2010	49 days
2011	43 days
2012	77 days
2013	4 days
2014	3 days
2015	3 days
2016	3 days
2017	2 days
2018	5 days
2019	15 days
2020	62 days
2021	41 days
2022	34 days
2023	50 days
2024	31 days
2025	54 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.

Frost Dates and Growing Season

22 years with a frost

Across 22 years with a frost, the median last spring frost at Potou falls on 22 March and the median first autumn frost on 10 November, which leaves a median of 235 days between them.

Frost dates and growing season at Potou
Measure	Median, all years	Earliest period	Recent period (1996 to 2024)	Recent against earliest	Fitted trend
Last spring frost	22 March	n/a	22 March	n/a	n/a
First autumn frost	10 November	n/a	10 November	n/a	n/a
Growing days	235 days	n/a	235 days	n/a	n/a

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Download the Data

Data for Potou standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Potou 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).