Udon Thani Weather Records (THW00041018)

Record envelope, standing records and threshold days for Udon Thani (THW00041018), Thailand, with 83 years of record.

Key Facts for Udon Thani

Udon Thani (THW00041018) is a weather station in Thailand at 17.38 latitude and 102.80 longitude, 178 m (584 ft) above sea level.
The station reports from 1943 to 2025, 83 years of record.
1,464 records set at Udon Thani still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Udon Thani set a daily record low minimum temperature of 22.3 C (72.1 F) on 22 August 2025.

About the Station

Location: Thailand, 17.38 latitude, 102.80 longitude.
Elevation: 178 m (584 ft).
Period of record: 1943 to 2025, 83 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

10 days at or beyond a record

The band shows the record high and record low for each calendar day at Udon Thani. The lines show the 2026 daily maximum and minimum. 10 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Udon Thani, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	37.6 C (99.7 F)	2.8 C (37.0 F)	34.8 C (94.6 F)	8.1 C (46.6 F)
Feb	39.2 C (102.6 F)	8.3 C (46.9 F)	37.2 C (99.0 F)	13.5 C (56.3 F)
Mar	42.0 C (107.6 F)	10.0 C (50.0 F)	39.6 C (103.3 F)	16.0 C (60.8 F)
Apr	44.1 C (111.4 F)	13.9 C (57.0 F)	40.2 C (104.4 F)	20.0 C (68.0 F)
May	43.7 C (110.7 F)	19.0 C (66.2 F)	38.2 C (100.8 F)	22.0 C (71.6 F)
Jun	40.0 C (104.0 F)	20.3 C (68.5 F)	36.1 C (97.0 F)	22.2 C (72.0 F)
Jul	39.8 C (103.6 F)	21.1 C (70.0 F)	35.2 C (95.4 F)	23.2 C (73.8 F)
Aug	39.4 C (102.9 F)	20.0 C (68.0 F)	36.3 C (97.3 F)	22.3 C (72.1 F)
Sep	39.5 C (103.1 F)	20.0 C (68.0 F)	n/a	n/a
Oct	37.2 C (99.0 F)	12.8 C (55.0 F)	n/a	n/a
Nov	37.0 C (98.6 F)	7.8 C (46.0 F)	n/a	n/a
Dec	39.0 C (102.2 F)	3.3 C (37.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Udon Thani still stand. 1943 holds the most, with 43.

Standing records at Udon Thani by the year they were set
Year set	Standing records
1943	43
1944	28
1945	40
1946	36
1947	23
1948	14
1949	23
1950	23
1951	18
1952	31
1954	8
1955	14
1956	9
1957	13
1958	2
1959	2
1960	2
1961	21
1962	34
1963	25
1964	13
1965	8
1966	29
1967	30
1973	27
1974	25
1975	34
1976	18
1977	30
1978	18
1979	14
1980	23
1981	10
1982	10
1983	17
1984	12
1985	19
1986	22
1987	42
1988	27
1989	19
1990	13
1991	12
1992	21
1993	10
1994	15
1995	11
1996	17
1997	19
1998	36
1999	18
2000	27
2001	23
2002	19
2003	15
2004	10
2005	26
2006	10
2007	19
2008	8
2009	14
2010	17
2011	22
2012	20
2013	17
2014	12
2015	37
2016	17
2017	16
2018	7
2019	10
2020	8
2021	9
2022	11
2023	27
2024	26
2025	9

All-Time Record Progression

6 new records

6 all-time records were set at Udon Thani between 29 December 1991 and 30 April 2024. Each dot is a new record.

When Udon Thani set new all-time records
Date	Kind	Detail
1991-12-29	Record low maximum temperature	Record low maximum temperature 16.2 C (61.2 F)
2004-02-07	Record low maximum temperature	Record low maximum temperature 16.0 C (60.8 F)
2007-04-24	Record high maximum temperature	Record high maximum temperature 43.0 C (109.4 F)
2016-01-25	Record low maximum temperature	Record low maximum temperature 14.2 C (57.6 F)
2023-05-06	Record high maximum temperature	Record high maximum temperature 43.7 C (110.7 F)
2024-04-30	Record high maximum temperature	Record high maximum temperature 44.1 C (111.4 F)

Wettest Day of Each Month

Aug: 249.9 mm (9.8 in)

The wettest day on record for each calendar month at Udon Thani. The most was 249.9 mm (9.8 in) on 17 August 1974.

Record daily precipitation for each month at Udon Thani
Month	Record daily precipitation (mm)	Date
Jan	30.0 mm (1.2 in)	16 January 1947
Feb	89.9 mm (3.5 in)	7 February 1994
Mar	71.1 mm (2.8 in)	28 March 1996
Apr	99.1 mm (3.9 in)	24 April 1985
May	158.0 mm (6.2 in)	15 May 1988
Jun	120.9 mm (4.8 in)	27 June 1983
Jul	126.5 mm (5.0 in)	31 July 2011
Aug	249.9 mm (9.8 in)	17 August 1974
Sep	161.0 mm (6.3 in)	14 September 2009
Oct	135.9 mm (5.4 in)	5 October 1950
Nov	70.1 mm (2.8 in)	9 November 1963
Dec	101.1 mm (4.0 in)	15 December 1993

Period of Record Coverage

1943 to 2025

77 years of record at Udon Thani, 1943 to 2025. 31 years have data for under 90 percent of days and are left out of rankings: 1946, 1947, 1954, 1955, 1956, 1957, 1958, 1959 and others.

Days with data per year at Udon Thani
Year	Days with data	Share of year	Complete
1943	349	96%	Yes
1944	352	96%	Yes
1945	357	98%	Yes
1946	277	76%	No
1947	310	85%	No
1948	363	99%	Yes
1949	355	97%	Yes
1950	358	98%	Yes
1951	358	98%	Yes
1952	358	98%	Yes
1954	79	22%	No
1955	131	36%	No
1956	117	32%	No
1957	102	28%	No
1958	56	15%	No
1959	29	8%	No
1960	66	18%	No
1961	254	70%	No
1962	349	96%	Yes
1963	295	81%	No
1964	220	60%	No
1965	316	87%	No
1966	365	100%	Yes
1967	365	100%	Yes
1973	322	88%	No
1974	347	95%	Yes
1975	328	90%	No
1976	330	90%	Yes
1977	316	87%	No
1978	330	90%	Yes
1979	340	93%	Yes
1980	338	92%	Yes
1981	346	95%	Yes
1982	328	90%	No
1983	322	88%	No
1984	335	92%	Yes
1985	336	92%	Yes
1986	326	89%	No
1987	335	92%	Yes
1988	314	86%	No
1989	346	95%	Yes
1990	348	95%	Yes
1991	350	96%	Yes
1992	350	96%	Yes
1993	347	95%	Yes
1994	351	96%	Yes
1995	320	88%	No
1996	351	96%	Yes
1997	349	96%	Yes
1998	348	95%	Yes
1999	340	93%	Yes
2000	344	94%	Yes
2001	354	97%	Yes
2002	355	97%	Yes
2003	348	95%	Yes
2004	352	96%	Yes
2005	330	90%	Yes
2006	342	94%	Yes
2007	339	93%	Yes
2008	352	96%	Yes
2009	357	98%	Yes
2010	364	100%	Yes
2011	348	95%	Yes
2012	360	98%	Yes
2013	355	97%	Yes
2014	358	98%	Yes
2015	354	97%	Yes
2016	327	89%	No
2017	317	87%	No
2018	144	39%	No
2019	150	41%	No
2020	153	42%	No
2021	146	40%	No
2022	237	65%	No
2023	240	66%	No
2024	230	63%	No
2025	171	47%	No

Latest Records

Latest records at Udon Thani
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
22 August 2025	Udon Thani, TH	daily low min	22.3 C (72.1 F)	0.2 C (0.4 F)	28 years	17 of 100 (Routine)
11 August 2025	Udon Thani, TH	daily high max	36.2 C (97.2 F)	0.9 C (1.6 F)	8 years	14 of 100 (Routine)
9 August 2025	Udon Thani, TH	daily high max	36.3 C (97.3 F)	1.3 C (2.3 F)	58 years	31 of 100 (Routine)
8 August 2025	Udon Thani, TH	daily high max	35.6 C (96.1 F)	0.2 C (0.4 F)	6 years	9 of 100 (Routine)
4 August 2025	Udon Thani, TH	daily high max	36.3 C (97.3 F)	0.5 C (0.9 F)	34 years	20 of 100 (Routine)
27 July 2025	Udon Thani, TH	daily rain	44.2 mm (1.7 in)	12.2 mm (0.5 in)	44 years	29 of 100 (Routine)
1 July 2025	Udon Thani, TH	daily rain	63.5 mm (2.5 in)	35.6 mm (1.4 in)	16 years	36 of 100 (Notable)
28 June 2025	Udon Thani, TH	daily low min (Tie)	22.2 C (72.0 F)	tie	68 years	7 of 100 (Routine)
27 June 2025	Udon Thani, TH	daily low min	22.2 C (72.0 F)	0.5 C (0.9 F)	28 years	20 of 100 (Routine)
6 June 2025	Udon Thani, TH	daily rain	65.3 mm (2.6 in)	17.0 mm (0.7 in)	59 years	35 of 100 (Notable)
10 May 2025	Udon Thani, TH	daily rain	88.6 mm (3.5 in)	8.6 mm (0.34 in)	75 years	35 of 100 (Notable)
5 May 2025	Udon Thani, TH	daily rain	104.9 mm (4.1 in)	56.9 mm (2.2 in)	24 years	48 of 100 (Notable)
30 March 2025	Udon Thani, TH	daily rain	52.3 mm (2.1 in)	16.5 mm (0.6 in)	22 years	27 of 100 (Routine)
23 March 2025	Udon Thani, TH	daily low min	17.1 C (62.8 F)	1.5 C (2.7 F)	4 years	14 of 100 (Routine)
22 March 2025	Udon Thani, TH	daily low min	16.7 C (62.1 F)	1.6 C (2.9 F)	75 years	36 of 100 (Notable)
21 March 2025	Udon Thani, TH	daily low min	16.0 C (60.8 F)	2.0 C (3.6 F)	51 years	30 of 100 (Routine)
25 February 2025	Udon Thani, TH	daily low max (Tie)	26.6 C (79.9 F)	tie	8 years	2 of 100 (Routine)
12 December 2024	Udon Thani, TH	daily high min	22.5 C (72.5 F)	0.1 C (0.2 F)	14 years	12 of 100 (Routine)
16 November 2024	Udon Thani, TH	daily high max	36.0 C (96.8 F)	0.3 C (0.5 F)	22 years	15 of 100 (Routine)
15 November 2024	Udon Thani, TH	daily high max	36.4 C (97.5 F)	1.0 C (1.8 F)	22 years	18 of 100 (Routine)

Climate Trend

35 complete years, 1943 to 2006

One stripe for each of 35 complete years at Udon Thani, 1943 to 2006. Blue stripes are years cooler than the station's own mean of 26.9 C (80.4 F); red stripes are warmer. The coolest year was 1943, at 25.9 C (78.7 F), and the warmest was 2001, at 27.6 C (81.6 F). The strongest colour marks a difference of 1.0 C (1.8 F).

Annual mean temperature at Udon Thani as warming stripes, 1943 to 2006
Year	Annual mean temperature	Difference from the station mean
1943	25.9 C	-0.95 C
1944	27.1 C	+0.24 C
1945	26.5 C	-0.42 C
1950	26.3 C	-0.58 C
1951	26.4 C	-0.46 C
1952	26.8 C	-0.07 C
1962	26.4 C	-0.48 C
1965	26.6 C	-0.27 C
1966	27.2 C	+0.31 C
1967	26.2 C	-0.67 C
1974	26.6 C	-0.32 C
1975	26.6 C	-0.24 C
1976	26.4 C	-0.45 C
1977	26.9 C	-0.02 C
1978	26.9 C	+0.05 C
1979	27.3 C	+0.40 C
1980	27.3 C	+0.38 C
1981	26.9 C	+0.05 C
1982	26.9 C	-0.03 C
1983	27.0 C	+0.14 C
1986	26.9 C	-0.01 C
1989	26.9 C	-0.01 C
1990	27.1 C	+0.23 C
1992	27.0 C	+0.07 C
1993	27.0 C	+0.16 C
1994	27.1 C	+0.19 C
1996	26.6 C	-0.31 C
1997	27.3 C	+0.44 C
1999	26.9 C	+0.01 C
2000	27.0 C	+0.10 C
2001	27.6 C	+0.69 C
2002	27.5 C	+0.63 C
2003	27.4 C	+0.51 C
2004	26.9 C	+0.06 C
2006	27.5 C	+0.64 C

The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1943 to 2006. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 35 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Udon Thani
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.1 C (0.1 to 0.2) per decade	0.2 F (0.1 to 0.3) per decade	1943 to 2006	35	Rise
Mean daily maximum	0.04 C (-0.07 to 0.14) per decade	0.1 F (-0.1 to 0.3) per decade	1943 to 2006	35	Not clearly different from zero
Mean daily minimum	0.2 C (0.1 to 0.3) per decade	0.4 F (0.2 to 0.6) per decade	1943 to 2006	35	Rise

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

1943 to 2025

Yearly extremes at Udon Thani: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	44.1 C (111.4 F)	2024	40.6 C (105.1 F)	77
Coldest night (TNn)	2.8 C (37.0 F)	1955	9.6 C (49.3 F)	76
Wettest day (Rx1day)	249.9 mm (9.8 in)	1974	79.5 mm (3.1 in)	77
Wettest five days (Rx5day)	337.1 mm (13.3 in)	1946	158.1 mm (6.2 in)	72
Longest dry spell (CDD)	90 days	2004	6 days	77

Hottest day (TXx)

The hottest day of the year at Udon Thani, 1943 to 2025. The record is 44.1 C (111.4 F) in 2024, marked on the chart; the median year is 40.6 C (105.1 F).

Hottest day (TXx) at Udon Thani by year
Year	Hottest day (TXx)
1943	40.0 C (104.0 F)
1944	41.7 C (107.1 F)
1945	39.4 C (102.9 F)
1946	40.6 C (105.1 F)
1947	40.0 C (104.0 F)
1948	40.6 C (105.1 F)
1949	40.0 C (104.0 F)
1950	42.8 C (109.0 F)
1951	41.1 C (106.0 F)
1952	41.1 C (106.0 F)
1954	37.8 C (100.0 F)
1955	42.8 C (109.0 F)
1956	38.9 C (102.0 F)
1957	41.1 C (106.0 F)
1958	42.8 C (109.0 F)
1959	37.2 C (99.0 F)
1960	42.2 C (108.0 F)
1961	41.1 C (106.0 F)
1962	42.2 C (108.0 F)
1963	41.1 C (106.0 F)
1964	37.8 C (100.0 F)
1965	37.8 C (100.0 F)
1966	38.9 C (102.0 F)
1967	39.4 C (102.9 F)
1973	41.0 C (105.8 F)
1974	38.0 C (100.4 F)
1975	41.0 C (105.8 F)
1976	39.0 C (102.2 F)
1977	40.0 C (104.0 F)
1978	39.0 C (102.2 F)
1979	40.0 C (104.0 F)
1980	40.0 C (104.0 F)
1981	40.0 C (104.0 F)
1982	39.6 C (103.3 F)
1983	41.8 C (107.2 F)
1984	40.4 C (104.7 F)
1985	40.9 C (105.6 F)
1986	40.6 C (105.1 F)
1987	39.8 C (103.6 F)
1988	40.6 C (105.1 F)
1989	41.0 C (105.8 F)
1990	41.7 C (107.1 F)
1991	40.6 C (105.1 F)
1992	41.1 C (106.0 F)
1993	40.3 C (104.5 F)
1994	39.6 C (103.3 F)
1995	41.4 C (106.5 F)
1996	39.2 C (102.6 F)
1997	40.0 C (104.0 F)
1998	42.0 C (107.6 F)
1999	41.0 C (105.8 F)
2000	41.5 C (106.7 F)
2001	42.5 C (108.5 F)
2002	41.1 C (106.0 F)
2003	40.5 C (104.9 F)
2004	40.0 C (104.0 F)
2005	42.5 C (108.5 F)
2006	40.2 C (104.4 F)
2007	43.0 C (109.4 F)
2008	38.3 C (100.9 F)
2009	40.2 C (104.4 F)
2010	41.3 C (106.3 F)
2011	39.0 C (102.2 F)
2012	40.8 C (105.4 F)
2013	42.0 C (107.6 F)
2014	40.7 C (105.3 F)
2015	41.9 C (107.4 F)
2016	42.4 C (108.3 F)
2017	39.9 C (103.8 F)
2018	38.8 C (101.8 F)
2019	41.0 C (105.8 F)
2020	42.2 C (108.0 F)
2021	38.5 C (101.3 F)
2022	40.5 C (104.9 F)
2023	43.7 C (110.7 F)
2024	44.1 C (111.4 F)
2025	40.2 C (104.4 F)

Coldest night (TNn)

The coldest night of the year at Udon Thani, 1943 to 2025. The record is 2.8 C (37.0 F) in 1955, marked on the chart; the median year is 9.6 C (49.3 F).

Coldest night (TNn) at Udon Thani by year
Year	Coldest night (TNn)
1943	3.3 C (37.9 F)
1944	5.6 C (42.1 F)
1945	5.6 C (42.1 F)
1946	5.6 C (42.1 F)
1947	10.0 C (50.0 F)
1948	n/a
1949	13.3 C (55.9 F)
1950	8.3 C (46.9 F)
1951	8.9 C (48.0 F)
1952	5.6 C (42.1 F)
1954	6.1 C (43.0 F)
1955	2.8 C (37.0 F)
1956	7.8 C (46.0 F)
1957	11.1 C (52.0 F)
1958	11.1 C (52.0 F)
1959	7.2 C (45.0 F)
1960	11.1 C (52.0 F)
1961	10.0 C (50.0 F)
1962	6.1 C (43.0 F)
1963	5.0 C (41.0 F)
1964	8.9 C (48.0 F)
1965	8.9 C (48.0 F)
1966	11.7 C (53.1 F)
1967	6.7 C (44.1 F)
1973	6.0 C (42.8 F)
1974	5.0 C (41.0 F)
1975	6.0 C (42.8 F)
1976	6.0 C (42.8 F)
1977	13.0 C (55.4 F)
1978	12.0 C (53.6 F)
1979	12.0 C (53.6 F)
1980	13.0 C (55.4 F)
1981	9.0 C (48.2 F)
1982	8.5 C (47.3 F)
1983	8.4 C (47.1 F)
1984	10.0 C (50.0 F)
1985	10.0 C (50.0 F)
1986	9.5 C (49.1 F)
1987	9.3 C (48.7 F)
1988	12.6 C (54.7 F)
1989	11.5 C (52.7 F)
1990	11.4 C (52.5 F)
1991	12.7 C (54.9 F)
1992	9.3 C (48.7 F)
1993	7.2 C (45.0 F)
1994	12.1 C (53.8 F)
1995	8.5 C (47.3 F)
1996	7.0 C (44.6 F)
1997	11.6 C (52.9 F)
1998	11.6 C (52.9 F)
1999	4.2 C (39.6 F)
2000	11.1 C (52.0 F)
2001	10.9 C (51.6 F)
2002	11.9 C (53.4 F)
2003	11.0 C (51.8 F)
2004	11.0 C (51.8 F)
2005	9.8 C (49.6 F)
2006	9.1 C (48.4 F)
2007	9.0 C (48.2 F)
2008	9.7 C (49.5 F)
2009	8.0 C (46.4 F)
2010	12.7 C (54.9 F)
2011	10.5 C (50.9 F)
2012	13.6 C (56.5 F)
2013	10.6 C (51.1 F)
2014	8.3 C (46.9 F)
2015	9.8 C (49.6 F)
2016	9.1 C (48.4 F)
2017	8.3 C (46.9 F)
2018	12.5 C (54.5 F)
2019	8.5 C (47.3 F)
2020	13.8 C (56.8 F)
2021	9.8 C (49.6 F)
2022	13.9 C (57.0 F)
2023	9.9 C (49.8 F)
2024	12.5 C (54.5 F)
2025	8.1 C (46.6 F)

Wettest day (Rx1day)

The wettest day of the year at Udon Thani, 1943 to 2025. The record is 249.9 mm (9.8 in) in 1974, marked on the chart; the median year is 79.5 mm (3.1 in).

Wettest day (Rx1day) at Udon Thani by year
Year	Wettest day (Rx1day)
1943	62.0 mm (2.4 in)
1944	64.0 mm (2.5 in)
1945	98.0 mm (3.9 in)
1946	199.9 mm (7.9 in)
1947	124.0 mm (4.9 in)
1948	52.1 mm (2.1 in)
1949	69.1 mm (2.7 in)
1950	135.9 mm (5.4 in)
1951	69.1 mm (2.7 in)
1952	154.9 mm (6.1 in)
1954	51.1 mm (2.0 in)
1955	50.0 mm (2.0 in)
1956	46.0 mm (1.8 in)
1957	59.9 mm (2.4 in)
1958	49.0 mm (1.9 in)
1959	21.1 mm (0.8 in)
1960	49.0 mm (1.9 in)
1961	119.9 mm (4.7 in)
1962	80.0 mm (3.1 in)
1963	70.1 mm (2.8 in)
1964	70.1 mm (2.8 in)
1965	70.1 mm (2.8 in)
1966	76.2 mm (3.0 in)
1967	98.6 mm (3.9 in)
1973	140.0 mm (5.5 in)
1974	249.9 mm (9.8 in)
1975	30.0 mm (1.2 in)
1976	119.9 mm (4.7 in)
1977	46.0 mm (1.8 in)
1978	169.9 mm (6.7 in)
1979	89.9 mm (3.5 in)
1980	150.1 mm (5.9 in)
1981	80.0 mm (3.1 in)
1982	64.0 mm (2.5 in)
1983	120.9 mm (4.8 in)
1984	64.0 mm (2.5 in)
1985	99.1 mm (3.9 in)
1986	127.0 mm (5.0 in)
1987	118.1 mm (4.6 in)
1988	158.0 mm (6.2 in)
1989	84.1 mm (3.3 in)
1990	72.9 mm (2.9 in)
1991	120.9 mm (4.8 in)
1992	55.9 mm (2.2 in)
1993	101.1 mm (4.0 in)
1994	103.9 mm (4.1 in)
1995	127.0 mm (5.0 in)
1996	71.9 mm (2.8 in)
1997	75.9 mm (3.0 in)
1998	54.1 mm (2.1 in)
1999	26.9 mm (1.1 in)
2000	116.3 mm (4.6 in)
2001	74.9 mm (2.9 in)
2002	103.9 mm (4.1 in)
2003	94.7 mm (3.7 in)
2004	71.1 mm (2.8 in)
2005	66.8 mm (2.6 in)
2006	140.2 mm (5.5 in)
2007	65.5 mm (2.6 in)
2008	107.2 mm (4.2 in)
2009	161.0 mm (6.3 in)
2010	82.5 mm (3.2 in)
2011	126.5 mm (5.0 in)
2012	64.3 mm (2.5 in)
2013	66.3 mm (2.6 in)
2014	88.4 mm (3.5 in)
2015	55.6 mm (2.2 in)
2016	79.0 mm (3.1 in)
2017	74.2 mm (2.9 in)
2018	86.6 mm (3.4 in)
2019	66.8 mm (2.6 in)
2020	68.3 mm (2.7 in)
2021	101.3 mm (4.0 in)
2022	79.5 mm (3.1 in)
2023	68.6 mm (2.7 in)
2024	93.0 mm (3.7 in)
2025	104.9 mm (4.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Udon Thani, 1943 to 2025. The record is 337.1 mm (13.3 in) in 1946, marked on the chart; the median year is 158.1 mm (6.2 in).

Wettest five days (Rx5day) at Udon Thani by year
Year	Wettest five days (Rx5day)
1943	145.9 mm (5.7 in)
1944	133.9 mm (5.3 in)
1945	159.9 mm (6.3 in)
1946	337.1 mm (13.3 in)
1947	87.4 mm (3.4 in)
1948	133.4 mm (5.3 in)
1949	107.9 mm (4.2 in)
1950	167.9 mm (6.6 in)
1951	176.0 mm (6.9 in)
1952	199.4 mm (7.9 in)
1954	n/a
1955	41.6 mm (1.6 in)
1956	24.2 mm (1.0 in)
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	170.9 mm (6.7 in)
1962	128.0 mm (5.0 in)
1963	110.0 mm (4.3 in)
1964	90.9 mm (3.6 in)
1965	79.5 mm (3.1 in)
1966	170.6 mm (6.7 in)
1967	200.7 mm (7.9 in)
1973	169.1 mm (6.7 in)
1974	326.9 mm (12.9 in)
1975	12.9 mm (0.5 in)
1976	152.0 mm (6.0 in)
1977	86.4 mm (3.4 in)
1978	216.9 mm (8.5 in)
1979	186.2 mm (7.3 in)
1980	245.1 mm (9.6 in)
1981	183.1 mm (7.2 in)
1982	121.9 mm (4.8 in)
1983	217.4 mm (8.6 in)
1984	118.1 mm (4.6 in)
1985	104.5 mm (4.1 in)
1986	248.1 mm (9.8 in)
1987	182.1 mm (7.2 in)
1988	229.8 mm (9.0 in)
1989	150.9 mm (5.9 in)
1990	151.2 mm (6.0 in)
1991	207.8 mm (8.2 in)
1992	158.8 mm (6.3 in)
1993	120.1 mm (4.7 in)
1994	219.9 mm (8.7 in)
1995	221.9 mm (8.7 in)
1996	215.9 mm (8.5 in)
1997	154.0 mm (6.1 in)
1998	117.1 mm (4.6 in)
1999	10.1 mm (0.4 in)
2000	160.3 mm (6.3 in)
2001	142.2 mm (5.6 in)
2002	200.4 mm (7.9 in)
2003	165.4 mm (6.5 in)
2004	152.9 mm (6.0 in)
2005	173.0 mm (6.8 in)
2006	178.1 mm (7.0 in)
2007	163.1 mm (6.4 in)
2008	155.5 mm (6.1 in)
2009	235.7 mm (9.3 in)
2010	174.7 mm (6.9 in)
2011	244.8 mm (9.6 in)
2012	84.4 mm (3.3 in)
2013	163.8 mm (6.4 in)
2014	157.3 mm (6.2 in)
2015	140.0 mm (5.5 in)
2016	138.7 mm (5.5 in)
2017	173.0 mm (6.8 in)
2018	153.2 mm (6.0 in)
2019	180.9 mm (7.1 in)
2020	147.6 mm (5.8 in)
2021	140.7 mm (5.5 in)
2022	152.2 mm (6.0 in)
2023	111.6 mm (4.4 in)
2024	270.0 mm (10.6 in)
2025	149.9 mm (5.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Udon Thani, 1943 to 2025. The record is 90 days in 2004, marked on the chart; the median year is 6 days.

Longest dry spell (CDD) at Udon Thani by year
Year	Longest dry spell (CDD)
1943	5 days
1944	5 days
1945	4 days
1946	6 days
1947	5 days
1948	6 days
1949	6 days
1950	5 days
1951	6 days
1952	4 days
1954	3 days
1955	3 days
1956	2 days
1957	2 days
1958	2 days
1959	1 day
1960	2 days
1961	4 days
1962	4 days
1963	5 days
1964	2 days
1965	31 days
1966	66 days
1967	56 days
1973	25 days
1974	43 days
1975	10 days
1976	25 days
1977	14 days
1978	50 days
1979	42 days
1980	52 days
1981	39 days
1982	27 days
1983	58 days
1984	39 days
1985	16 days
1986	22 days
1987	42 days
1988	46 days
1989	37 days
1990	51 days
1991	60 days
1992	55 days
1993	44 days
1994	41 days
1995	57 days
1996	48 days
1997	67 days
1998	34 days
1999	44 days
2000	12 days
2001	5 days
2002	22 days
2003	79 days
2004	90 days
2005	54 days
2006	6 days
2007	5 days
2008	5 days
2009	5 days
2010	4 days
2011	6 days
2012	4 days
2013	4 days
2014	4 days
2015	5 days
2016	5 days
2017	3 days
2018	4 days
2019	4 days
2020	3 days
2021	3 days
2022	4 days
2023	4 days
2024	4 days
2025	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 Udon Thani standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Udon Thani 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.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).