Climate Trends in Thailand
Long-record stations in Thailand warmed +0.20 C per decade from 1951 to 2022 (6 stations).
Data as of . Last revised (2026-10-14).
Key Facts
- From 1951 to 2022, long-record stations in Thailand warmed by +0.20 C per decade (+0.36 F) (95 percent interval +0.16 to +0.24 C), from 6 stations measured against each station's own 1961-1990 mean.
- The latest year in the series for Thailand, 2022, was +0.92 C against the 1961-1990 mean.
- In Thailand the daily minimum rose faster than the daily maximum, by 0.07 C per decade (the two intervals overlap).
- Of 12 stations in Thailand with at least 50 complete years of record, 3 had 2010 as their warmest year.
Warming
Thailand, against 1961-1990| Year | Difference from the 1961-1990 mean |
|---|---|
| 1951 | -0.17 C |
| 1952 | -0.30 C |
| 1953 | -0.13 C |
| 1954 | -0.05 C |
| 1955 | -0.70 C |
| 1956 | -0.71 C |
| 1957 | +0.08 C |
| 1958 | +0.06 C |
| 1959 | +0.19 C |
| 1960 | +0.28 C |
| 1961 | -0.07 C |
| 1962 | -0.23 C |
| 1963 | -0.17 C |
| 1964 | -0.11 C |
| 1965 | -0.14 C |
| 1966 | +0.30 C |
| 1967 | -0.24 C |
| 1968 | +0.07 C |
| 1969 | +0.12 C |
| 1970 | -0.22 C |
| 1971 | -0.77 C |
| 1972 | -0.02 C |
| 1973 | -0.09 C |
| 1974 | -0.51 C |
| 1975 | -0.28 C |
| 1976 | -0.39 C |
| 1977 | +0.02 C |
| 1978 | +0.10 C |
| 1979 | +0.44 C |
| 1980 | +0.47 C |
| 1981 | n/a |
| 1982 | n/a |
| 1983 | +0.14 C |
| 1984 | +0.09 C |
| 1985 | +0.12 C |
| 1986 | +0.06 C |
| 1987 | +0.50 C |
| 1988 | +0.26 C |
| 1989 | +0.32 C |
| 1990 | +0.65 C |
| 1991 | +0.62 C |
| 1992 | +0.31 C |
| 1993 | +0.36 C |
| 1994 | +0.49 C |
| 1995 | +0.62 C |
| 1996 | +0.31 C |
| 1997 | +0.66 C |
| 1998 | +1.35 C |
| 1999 | +0.18 C |
| 2000 | +0.30 C |
| 2001 | +0.75 C |
| 2002 | +0.81 C |
| 2003 | +0.75 C |
| 2004 | +0.58 C |
| 2005 | n/a |
| 2006 | +0.64 C |
| 2007 | +0.64 C |
| 2008 | +0.34 C |
| 2009 | +0.66 C |
| 2010 | +1.34 C |
| 2011 | +0.32 C |
| 2012 | +1.19 C |
| 2013 | +0.83 C |
| 2014 | +0.98 C |
| 2015 | +1.37 C |
| 2016 | n/a |
| 2017 | +1.10 C |
| 2018 | n/a |
| 2019 | n/a |
| 2020 | n/a |
| 2021 | n/a |
| 2022 | +0.92 C |
From 1951 to 2022, the long-record stations in Thailand warmed by +0.20 C per decade (+0.36 F) (95 percent interval +0.16 to +0.24 C), from 6 stations in 5 grid cells of 5 by 5 degrees, each measured against its own 1961-1990 mean.
The latest year in the series, 2022, was +0.9 C (+1.7 F) against the 1961-1990 mean.
The five warmest years in the series are 2015 (+1.37 C), 1998 (+1.35 C), 2010 (+1.34 C), 2012 (+1.19 C) and 2017 (+1.10 C).
Trend
| Measure | Trend per decade (C) | 95% interval (C) | Years | Stations |
|---|---|---|---|---|
| Annual mean temperature | +0.20 | +0.16 to +0.24 | 1951 to 2022 | 6 |
Warmest and coolest years in the series
| Rank | Warmest year | Difference from mean | Coolest year | Difference from mean |
|---|---|---|---|---|
| 1 | 2015 | +1.37 C | 1971 | -0.77 C |
| 2 | 1998 | +1.35 C | 1956 | -0.71 C |
| 3 | 2010 | +1.34 C | 1955 | -0.70 C |
| 4 | 2012 | +1.19 C | 1974 | -0.51 C |
| 5 | 2017 | +1.10 C | 1976 | -0.39 C |
6 stations in 5 grid cells of 5 by 5 degrees. Each station is compared with its own 1961-1990 mean, so stations at different heights and latitudes can be averaged. Stations are averaged within each grid cell and cells are weighted by the cosine of latitude.
Warmest Years
Thailand, 12 stations| Year | Stations with this as their warmest year |
|---|---|
| 1987 | 0 |
| 1988 | 0 |
| 1989 | 0 |
| 1990 | 2 |
| 1991 | 0 |
| 1992 | 0 |
| 1993 | 0 |
| 1994 | 0 |
| 1995 | 0 |
| 1996 | 0 |
| 1997 | 0 |
| 1998 | 2 |
| 1999 | 0 |
| 2000 | 0 |
| 2001 | 0 |
| 2002 | 1 |
| 2003 | 0 |
| 2004 | 0 |
| 2005 | 0 |
| 2006 | 0 |
| 2007 | 0 |
| 2008 | 0 |
| 2009 | 0 |
| 2010 | 3 |
| 2011 | 0 |
| 2012 | 0 |
| 2013 | 0 |
| 2014 | 0 |
| 2015 | 2 |
| 2016 | 0 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 0 |
| 2020 | 1 |
| 2021 | 0 |
| 2022 | 0 |
| 2023 | 0 |
| 2024 | 1 |
Of the 12 stations in Thailand with at least 50 complete years of record, 3 (25.0%) had 2010 as their warmest year on record.
The years that were the warmest on record at the most stations are 2010 (3 stations), 2015 (2 stations), 1998 (2 stations), 1990 (2 stations) and 2024 (1 station).
5 of the 12 stations (41.7%) had their warmest year in the 2010s.
By decade
| Decade | Stations with their warmest year in it | Share of stations | Stations with one of their five warmest years in it |
|---|---|---|---|
| 1980s | 0 | 0.0% | 1 |
| 1990s | 4 | 33.3% | 16 |
| 2000s | 1 | 8.3% | 13 |
| 2010s | 5 | 41.7% | 25 |
| 2020s (to date) | 2 | 16.7% | 5 |
The set is the 12 stations with at least 50 complete years (all twelve months with 20 or more days of maximum and minimum). A station's warmest year is the one with the highest annual mean temperature, a tie going to the later year. The count describes these stations, not the whole area.
Days and Nights
Thailand, against 1961-1990| Year | Daily maximum | Daily minimum | Day-night range (maximum minus minimum) |
|---|---|---|---|
| 1951 | +0.02 C | -0.35 C | +0.36 C |
| 1952 | -0.02 C | -0.58 C | +0.56 C |
| 1953 | -0.12 C | -0.13 C | +0.01 C |
| 1954 | +0.37 C | -0.48 C | +0.85 C |
| 1955 | -0.47 C | -0.93 C | +0.46 C |
| 1956 | -0.47 C | -0.95 C | +0.49 C |
| 1957 | +0.49 C | -0.33 C | +0.82 C |
| 1958 | +0.42 C | -0.29 C | +0.70 C |
| 1959 | +0.43 C | -0.06 C | +0.49 C |
| 1960 | +0.39 C | +0.17 C | +0.22 C |
| 1961 | -0.09 C | -0.05 C | -0.03 C |
| 1962 | +0.16 C | -0.62 C | +0.78 C |
| 1963 | +0.16 C | -0.49 C | +0.65 C |
| 1964 | +0.08 C | -0.31 C | +0.39 C |
| 1965 | +0.04 C | -0.32 C | +0.36 C |
| 1966 | +0.30 C | +0.30 C | +0.01 C |
| 1967 | -0.26 C | -0.22 C | -0.04 C |
| 1968 | +0.22 C | -0.09 C | +0.31 C |
| 1969 | +0.24 C | -0.01 C | +0.25 C |
| 1970 | -0.38 C | -0.07 C | -0.31 C |
| 1971 | -0.87 C | -0.68 C | -0.19 C |
| 1972 | -0.20 C | +0.15 C | -0.35 C |
| 1973 | -0.24 C | +0.06 C | -0.29 C |
| 1974 | -0.65 C | -0.38 C | -0.27 C |
| 1975 | -0.64 C | +0.07 C | -0.71 C |
| 1976 | -0.41 C | -0.37 C | -0.04 C |
| 1977 | -0.10 C | +0.14 C | -0.24 C |
| 1978 | -0.12 C | +0.32 C | -0.44 C |
| 1979 | +0.55 C | +0.34 C | +0.21 C |
| 1980 | +0.45 C | +0.49 C | -0.03 C |
| 1981 | n/a | n/a | n/a |
| 1982 | n/a | n/a | n/a |
| 1983 | +0.24 C | +0.05 C | +0.19 C |
| 1984 | +0.11 C | +0.08 C | +0.03 C |
| 1985 | -0.10 C | +0.34 C | -0.44 C |
| 1986 | +0.03 C | +0.09 C | -0.06 C |
| 1987 | +0.47 C | +0.52 C | -0.06 C |
| 1988 | +0.14 C | +0.37 C | -0.23 C |
| 1989 | +0.45 C | +0.18 C | +0.27 C |
| 1990 | +0.78 C | +0.52 C | +0.27 C |
| 1991 | +0.68 C | +0.57 C | +0.10 C |
| 1992 | +0.54 C | +0.08 C | +0.46 C |
| 1993 | +0.53 C | +0.20 C | +0.32 C |
| 1994 | +0.52 C | +0.46 C | +0.06 C |
| 1995 | +0.69 C | +0.56 C | +0.13 C |
| 1996 | +0.24 C | +0.37 C | -0.12 C |
| 1997 | +0.85 C | +0.47 C | +0.38 C |
| 1998 | +1.45 C | +1.24 C | +0.20 C |
| 1999 | -0.16 C | +0.53 C | -0.69 C |
| 2000 | +0.13 C | +0.47 C | -0.34 C |
| 2001 | +0.66 C | +0.84 C | -0.18 C |
| 2002 | +0.84 C | +0.79 C | +0.05 C |
| 2003 | +0.88 C | +0.62 C | +0.26 C |
| 2004 | +0.88 C | +0.28 C | +0.60 C |
| 2005 | n/a | n/a | n/a |
| 2006 | +0.54 C | +0.75 C | -0.21 C |
| 2007 | +0.67 C | +0.62 C | +0.06 C |
| 2008 | +0.13 C | +0.55 C | -0.42 C |
| 2009 | +0.73 C | +0.59 C | +0.14 C |
| 2010 | +1.40 C | +1.28 C | +0.12 C |
| 2011 | +0.09 C | +0.55 C | -0.46 C |
| 2012 | +1.16 C | +1.22 C | -0.06 C |
| 2013 | +0.80 C | +0.85 C | -0.05 C |
| 2014 | +1.26 C | +0.69 C | +0.56 C |
| 2015 | +1.52 C | +1.22 C | +0.30 C |
| 2016 | n/a | n/a | n/a |
| 2017 | +0.88 C | +1.32 C | -0.44 C |
| 2018 | n/a | n/a | n/a |
| 2019 | n/a | n/a | n/a |
| 2020 | n/a | n/a | n/a |
| 2021 | n/a | n/a | n/a |
| 2022 | +0.73 C | +1.10 C | -0.38 C |
From 1951 to 2022, the daily maximum in Thailand changed by +0.16 C per decade (+0.30 F) (95 percent interval +0.09 to +0.24 C) and the daily minimum by +0.23 C per decade (+0.42 F) (95 percent interval +0.20 to +0.27 C), from 6 stations.
The daily minimum rose faster, by 0.07 C per decade more than the daily maximum; the two intervals overlap, so the data do not separate them.
The day-night range (daily maximum minus daily minimum) changed by -0.07 C per decade (95 percent interval -0.14 to 0.00 C), which means the range narrowed.
Trends per decade
| Measure | Trend per decade (C) | 95% interval (C) | Years | Stations |
|---|---|---|---|---|
| Daily maximum | +0.16 | +0.09 to +0.24 | 1951 to 2022 | 6 |
| Daily minimum | +0.23 | +0.20 to +0.27 | 1951 to 2022 | 6 |
| Day-night range (maximum minus minimum) | -0.07 | -0.14 to 0.00 | 1951 to 2022 | 6 |
The day-night range is the daily maximum minus the daily minimum, so a falling range means the minimum rose by more than the maximum. Intervals allow for year to year persistence in the series.
Longest Hot, Cold, Wet and Dry Streaks: Thailand
5 lists of 10- In Thailand, the longest run of hot days in a row in the data is 109 days, at Kanchanaburi (Thailand), from 31 January 1998 to 19 May 1998.
- In Thailand, the longest run of days in a row at or above 40 C in the data is 27 days, at Phetchabun (Thailand), from 3 April 2016 to 29 April 2016.
- In Thailand, the longest run of dry days in a row in the data is 143 days, at Mae Sariang (Thailand), in 1983.
- In Thailand, the longest run of wet days in a row in the data is 56 days, at Khlong Yai (Thailand), in 1968.
- In Thailand, the longest run of longest run of nights at or above 25 c in the data is 109 days, at Don Muang (Thailand), from 26 May 1978 to 11 September 1978.
Longest run of days at or above 35 C
Consecutive days with a daily maximum at or above 35 C (95 F).
| Rank | Station | Country | Length | When |
|---|---|---|---|---|
| 1 | Kanchanaburi | Thailand | 109 days | 31 January to 19 May 1998 |
| 2 | Nakhon Sawan | Thailand | 101 days | 29 February to 8 June 1992 |
| 3 | Lampang | Thailand | 87 days | 27 March to 21 June 2010 |
| 4 | Uttaradit | Thailand | 86 days | 28 March to 21 June 2010 |
| 5 | Mae Sariang | Thailand | 85 days | 19 February to 14 May 2013 |
| 6 | Aranyaprathet | Thailand | 84 days | 29 February to 22 May 1992 |
| 7 | Mae Sot | Thailand | 82 days | 25 February to 17 May 2010 |
| 8 | Mae Hong Son | Thailand | 81 days | 7 March to 26 May 1983 |
| 9 | Tak | Thailand | 80 days | 7 March to 25 May 1983 |
| 10 | Don Muang | Thailand | 80 days | 8 March to 26 May 1983 |
Longest run of days at or above 40 C
Consecutive days with a daily maximum at or above 40 C (104 F).
| Rank | Station | Country | Length | When |
|---|---|---|---|---|
| 1 | Phetchabun | Thailand | 27 days | 3 to 29 April 2016 |
| 2 | Nakhon Sawan | Thailand | 27 days | 3 to 29 April 2016 |
| 3 | Uttaradit | Thailand | 26 days | 4 to 29 April 2016 |
| 4 | Lampang | Thailand | 25 days | 4 to 28 April 2016 |
| 5 | Phrae | Thailand | 25 days | 5 to 29 April 2016 |
| 6 | Mae Hong Son | Thailand | 21 days | 10 to 30 April 2001 |
| 7 | Tak | Thailand | 21 days | 25 April to 15 May 2016 |
| 8 | Phitsanulok/Sarit | Thailand | 19 days | 10 to 28 April 2016 |
| 9 | Kanchanaburi | Thailand | 18 days | 2 to 19 April 1983 |
| 10 | Nakhon Ratchasima | Thailand | 17 days | 4 to 20 April 2016 |
Longest dry spell (days under 1 mm of rain), within one year
Consecutive days with less than 1 mm (0.04 in) of rain, the longest run within a year. The dates are not kept, so the list gives the year (within the year).
| Rank | Station | Country | Length | When |
|---|---|---|---|---|
| 1 | Mae Sariang | Thailand | 143 days | within 1983 |
| 2 | Mae Sot | Thailand | 138 days | within 1983 |
| 3 | Don Muang | Thailand | 127 days | within 1983 |
| 4 | Suphan Buri | Thailand | 122 days | within 1983 |
| 5 | Hua Hin | Thailand | 119 days | within 1976 |
| 6 | Nakhon Sawan | Thailand | 117 days | within 1983 |
| 7 | Tak | Thailand | 116 days | within 2004 |
| 8 | Surat Thani | Thailand | 115 days | within 1963 |
| 9 | Mae Hong Son | Thailand | 114 days | within 1979 |
| 10 | Lop Buri | Thailand | 113 days | within 1983 |
Longest wet spell (days with 1 mm or more of rain), within one year
Consecutive days with 1 mm (0.04 in) or more of rain, the longest run within a year. The dates are not kept, so the list gives the year (within the year).
| Rank | Station | Country | Length | When |
|---|---|---|---|---|
| 1 | Khlong Yai | Thailand | 56 days | within 1968 |
| 2 | Nakhon Phanom | Thailand | 45 days | within 2004 |
| 3 | Mae Sot | Thailand | 40 days | within 1981 |
| 4 | Chanthaburi | Thailand | 30 days | within 1957 |
| 5 | Songkhla | Thailand | 29 days | within 1951 |
| 6 | Mae Sariang | Thailand | 27 days | within 1958 |
| 7 | Mae Hong Son | Thailand | 23 days | within 1959 |
| 8 | Phuket Airport | Thailand | 23 days | within 1977 |
| 9 | Mukdahan | Thailand | 23 days | within 1981 |
| 10 | Nakhon Si Thammarat | Thailand | 22 days | within 1965 |
Longest run of nights at or above 25 C
| Rank | Station | Country | Length | When |
|---|---|---|---|---|
| 1 | Don Muang | Thailand | 109 days | 26 May to 11 September 1978 |
| 2 | Hua Hin | Thailand | 79 days | 17 April to 4 July 1979 |
| 3 | Songkhla | Thailand | 56 days | 21 April to 15 June 1998 |
| 4 | Sattahip | Thailand | 49 days | 10 March to 27 April 1953 |
| 5 | Bangkok Metropolis | Thailand | 46 days | 19 April to 3 June 1980 |
| 6 | Lop Buri | Thailand | 45 days | 29 March to 12 May 1973 |
| 7 | Kanchanaburi | Thailand | 43 days | 26 April to 7 June 1979 |
| 8 | Uttaradit | Thailand | 40 days | 31 May to 9 July 2025 |
| 9 | Aranyaprathet | Thailand | 38 days | 19 March to 25 April 1983 |
| 10 | Nakhon Sawan | Thailand | 37 days | 30 March to 5 May 1998 |
A run belongs to the year it started in, even when it ran on into the next year. A station appears once per list, with its longest run in a complete year. Dry and wet spells are the longest run within a year. Lists use complete years only, so a long run in a year with gaps in the record is not counted.
Biggest One Day Temperature Swings: Thailand
6 lists of 10- In Thailand, the largest reported one day rise in the daily maximum is 14.7 C (26.5 F), at Khon Kaen (Thailand) on 15 March 2009.
- In Thailand, the largest reported one day drop in the daily maximum is 18.0 C (32.4 F), at Khon Kaen (Thailand) on 5 April 1969.
- In Thailand, the largest reported one day rise in the daily minimum is 13.2 C (23.8 F), at Aranyaprathet (Thailand) on 16 February 1957.
- In Thailand, the largest reported one day drop in the daily minimum is 18.5 C (33.3 F), at Nakhon Phanom (Thailand) on 16 February 1970.
- In Thailand, the largest reported range between the high and the low of one day is 28.9 C (52.0 F), at Mae Sariang (Thailand) on 15 March 1959.
- In Thailand, the smallest reported range between the high and the low of one day is 0.0 C (0.0 F), at Trang (Thailand) on 25 June 1956.
Caveat.Single readings can still be instrument errors that quality control missed. A station with one faulty value can top a list, so read each entry as a reported value, not as a confirmed event.
Biggest one day rise in the daily maximum
The largest increase in the daily maximum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.
| Rank | Station | Country | Value | Date |
|---|---|---|---|---|
| 1 | Khon Kaen | Thailand | 14.7 C (26.5 F) | 15 March 2009 |
| 2 | Chiang Rai | Thailand | 13.4 C (24.1 F) | 10 March 2018 |
| 3 | Kanchanaburi | Thailand | 13.0 C (23.4 F) | 17 June 1987 |
| 4 | Mukdahan | Thailand | 12.7 C (22.9 F) | 19 April 1960 |
| 5 | Udon Thani | Thailand | 12.4 C (22.3 F) | 19 March 2011 |
| 6 | Chon Buri | Thailand | 12.1 C (21.8 F) | 26 October 1999 |
| 7 | Aranyaprathet | Thailand | 12.0 C (21.6 F) | 3 October 1960 |
| 8 | Udorn Ab (USAF) | Thailand | 11.4 C (20.5 F) | 6 May 1960 |
| 9 | Nakhon Phanom | Thailand | 11.4 C (20.5 F) | 20 July 1987 |
| 10 | Tak | Thailand | 11.4 C (20.5 F) | 25 August 1987 |
Biggest one day drop in the daily maximum
The largest decrease in the daily maximum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.
| Rank | Station | Country | Value | Date |
|---|---|---|---|---|
| 1 | Khon Kaen | Thailand | 18.0 C (32.4 F) | 5 April 1969 |
| 2 | Roi Et | Thailand | 17.4 C (31.3 F) | 24 January 2016 |
| 3 | Nakhon Ratchasima | Thailand | 17.4 C (31.3 F) | 24 January 2016 |
| 4 | Sakon Nakhon | Thailand | 16.5 C (29.7 F) | 5 March 1989 |
| 5 | Udon Thani | Thailand | 16.1 C (29.0 F) | 24 March 1962 |
| 6 | Mukdahan | Thailand | 16.0 C (28.8 F) | 4 February 2004 |
| 7 | Udorn Ab (USAF) | Thailand | 15.4 C (27.7 F) | 24 March 1962 |
| 8 | Mae Sariang | Thailand | 14.9 C (26.8 F) | 1 May 2001 |
| 9 | Loei | Thailand | 14.8 C (26.6 F) | 5 April 1969 |
| 10 | Surin | Thailand | 14.8 C (26.6 F) | 21 February 2022 |
Biggest one day rise in the daily minimum
The largest increase in the daily minimum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.
| Rank | Station | Country | Value | Date |
|---|---|---|---|---|
| 1 | Aranyaprathet | Thailand | 13.2 C (23.8 F) | 16 February 1957 |
| 2 | Nakhon Phanom | Thailand | 12.8 C (23.0 F) | 17 February 1970 |
| 3 | Chiang Mai | Thailand | 12.0 C (21.6 F) | 10 April 2012 |
| 4 | Uttaradit | Thailand | 11.4 C (20.5 F) | 12 February 2002 |
| 5 | Mae Sariang | Thailand | 10.9 C (19.6 F) | 19 March 1954 |
| 6 | Sattahip | Thailand | 10.7 C (19.3 F) | 28 January 1988 |
| 7 | Loei | Thailand | 10.4 C (18.7 F) | 27 February 2025 |
| 8 | Mae Hong Son | Thailand | 10.3 C (18.5 F) | 14 May 2012 |
| 9 | Chiang Rai | Thailand | 10.2 C (18.4 F) | 19 February 1953 |
| 10 | Tak | Thailand | 10.1 C (18.2 F) | 21 November 1954 |
Biggest one day drop in the daily minimum
The largest decrease in the daily minimum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.
| Rank | Station | Country | Value | Date |
|---|---|---|---|---|
| 1 | Nakhon Phanom | Thailand | 18.5 C (33.3 F) | 16 February 1970 |
| 2 | Kanchanaburi | Thailand | 17.3 C (31.1 F) | 3 January 1960 |
| 3 | Chiang Mai | Thailand | 12.3 C (22.1 F) | 25 November 1965 |
| 4 | Nakhon Ratchasima | Thailand | 11.4 C (20.5 F) | 21 February 1955 |
| 5 | Mae Sot | Thailand | 11.4 C (20.5 F) | 10 December 1971 |
| 6 | Chanthaburi | Thailand | 11.2 C (20.2 F) | 23 December 1988 |
| 7 | Udon Thani | Thailand | 11.1 C (20.0 F) | 25 October 1956 |
| 8 | Phrae | Thailand | 11.1 C (20.0 F) | 21 November 1958 |
| 9 | Lampang | Thailand | 11.1 C (20.0 F) | 2 February 1995 |
| 10 | Lop Buri | Thailand | 10.7 C (19.3 F) | 5 November 1966 |
Widest range between the high and the low of one day
The largest difference between the highest and the lowest temperature of the same day. Values are in degrees Celsius with Fahrenheit beside them.
| Rank | Station | Country | Value | Date |
|---|---|---|---|---|
| 1 | Mae Sariang | Thailand | 28.9 C (52.0 F) | 15 March 1959 |
| 2 | Loei | Thailand | 27.6 C (49.7 F) | 24 January 2025 |
| 3 | Nan | Thailand | 27.5 C (49.5 F) | 3 February 1968 |
| 4 | Tak | Thailand | 26.8 C (48.2 F) | 10 February 1955 |
| 5 | Chiang Mai | Thailand | 26.7 C (48.1 F) | 23 February 1948 |
| 6 | Nakhon Phanom | Thailand | 26.5 C (47.7 F) | 16 February 1970 |
| 7 | Lop Buri | Thailand | 26.2 C (47.2 F) | 19 January 1956 |
| 8 | Phetchabun | Thailand | 26.0 C (46.8 F) | 26 January 1955 |
| 9 | Lampang | Thailand | 26.0 C (46.8 F) | 9 February 1955 |
| 10 | Uttaradit | Thailand | 25.9 C (46.6 F) | 8 February 1955 |
Narrowest range between the high and the low of one day
The smallest difference between the highest and the lowest temperature of the same day. Values are in degrees Celsius with Fahrenheit beside them.
| Rank | Station | Country | Value | Date |
|---|---|---|---|---|
| 1 | Trang | Thailand | 0.0 C (0.0 F) | 25 June 1956 |
| 2 | Udorn Ab (USAF) | Thailand | 0.0 C (0.0 F) | 5 July 1957 |
| 3 | Nakhon Ratchasima | Thailand | 0.0 C (0.0 F) | 10 September 1963 |
| 4 | Mukdahan | Thailand | 0.0 C (0.0 F) | 6 May 1971 |
| 5 | Don Muang | Thailand | 0.1 C (0.2 F) | 1 August 1953 |
| 6 | Songkhla | Thailand | 0.1 C (0.2 F) | 27 January 1956 |
| 7 | Chiang Mai | Thailand | 0.1 C (0.2 F) | 25 October 1965 |
| 8 | Nakhon Si Thammarat | Thailand | 0.1 C (0.2 F) | 11 November 1975 |
| 9 | Aranyaprathet | Thailand | 0.2 C (0.4 F) | 19 June 1951 |
| 10 | Chanthaburi | Thailand | 0.2 C (0.4 F) | 15 September 1969 |
Only stations with at least 10 complete years are listed, and a station appears once per list.
Hot and Dry Summers: Thailand
43 stations with a 1961-1990 record- In Thailand, the share of stations with a hot and dry summer is shown for each year from 1951 to 2024, for 43 stations with at least 20 complete summers in 1961-1990. Each year counts the stations of that set with a complete summer in the year.
- In Thailand, 8.3% of station summers in 1961-1990 were hot and dry (1,235 station summers).
- In Thailand, 2.8% of station summers in 2010-2024 were hot and dry (36 station summers).
- In Thailand, 1993 had the highest share: 62.9% of 35 stations (22).
A summer is hot when its mean daily maximum is at or above the station's 80th percentile of its 1961-1990 summers, and dry when its rain is at or below the 20th percentile. A summer is hot and dry when it is both. Summer is June to August north of the equator and December to February south of it, labelled by the year of its first month.
Share of stations with a hot and dry summer
| Summer | Stations with a hot and dry summer |
|---|---|
| 1951 | 3.3% |
| 1952 | 5.6% |
| 1953 | 5.6% |
| 1954 | 27.5% |
| 1955 | 2.3% |
| 1956 | 0.0% |
| 1957 | 9.8% |
| 1958 | 9.5% |
| 1959 | 11.9% |
| 1960 | 7.0% |
| 1961 | 0.0% |
| 1962 | 0.0% |
| 1963 | 0.0% |
| 1964 | 7.1% |
| 1965 | 2.3% |
| 1966 | 2.3% |
| 1967 | 16.3% |
| 1968 | 0.0% |
| 1969 | 2.4% |
| 1970 | 0.0% |
| 1971 | 0.0% |
| 1972 | 4.7% |
| 1973 | 2.3% |
| 1974 | 2.3% |
| 1975 | 0.0% |
| 1976 | 0.0% |
| 1977 | 37.2% |
| 1978 | 0.0% |
| 1979 | 16.3% |
| 1980 | 2.4% |
| 1981 | 11.6% |
| 1982 | 7.0% |
| 1983 | 18.6% |
| 1984 | 2.4% |
| 1985 | 2.4% |
| 1986 | 15.2% |
| 1987 | 32.4% |
| 1988 | 12.0% |
| 1989 | 22.9% |
| 1990 | 42.1% |
| 1991 | 7.7% |
| 1992 | 23.7% |
| 1993 | 62.9% |
| 1994 | 0.0% |
| 1995 | 2.7% |
| 1996 | 27.8% |
| 1997 | 48.6% |
| 1998 | 22.9% |
| 2003 | 21.1% |
| 2004 | 5.3% |
| 2005 | 4.0% |
| 2006 | 10.0% |
| 2008 | 27.3% |
| 2011 | 6.7% |
| 2014 | 0.0% |
| 2024 | 0.0% |
The ten most extreme station summers
| Rank | Station | Country | Summer | Mean daily maximum vs 1961-1990 | Rain, percent of 1961-1990 mean |
|---|---|---|---|---|---|
| 1 | Mae Sariang | Thailand | 1998 | +1.8 C (+3.2 F) | 53% |
| 2 | Mae Sariang | Thailand | 2024 | +3.0 C (+5.4 F) | 94% |
| 3 | Khlong Yai | Thailand | 2024 | +2.5 C (+4.4 F) | 111% |
| 4 | Khlong Yai | Thailand | 2020 | +1.3 C (+2.4 F) | 57% |
| 5 | Prachin Buri | Thailand | 1997 | +1.9 C (+3.4 F) | 65% |
| 6 | Lop Buri | Thailand | 1997 | +2.1 C (+3.8 F) | 38% |
| 7 | Sakon Nakhon | Thailand | 1959 | +1.9 C (+3.4 F) | 54% |
| 8 | Khlong Yai | Thailand | 2010 | +1.5 C (+2.7 F) | 74% |
| 9 | Sattahip | Thailand | 1997 | +2.0 C (+3.5 F) | 42% |
| 10 | Surin | Thailand | 1954 | +1.8 C (+3.2 F) | 56% |
Ranked by the temperature z score minus the rain z score against the station's own 1961-1990 mean and standard deviation (at least 0.3 C and 5 mm). A summer is labelled by the year of its first month.
Download the Data
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. Trends and counts are computed by this site from daily station records. The long-record station set is described under each chart.