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Mae Hong Son Weather Records (TH000048300)

Record envelope, standing records and threshold days for Mae Hong Son (TH000048300), Thailand, with 75 years of record.

Key Facts for Mae Hong Son

  • Mae Hong Son (TH000048300) is a weather station in Thailand at 19.30 latitude and 97.83 longitude, 269 m (883 ft) above sea level.
  • The station reports from 1951 to 2025, 75 years of record.
  • 1,464 records set at Mae Hong Son still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Mae Hong Son set a daily record precipitation of 92.7 mm (3.6 in) on 14 August 2025.

About the Station

  • Location: Thailand, 19.30 latitude, 97.83 longitude.
  • Elevation: 269 m (883 ft).
  • Period of record: 1951 to 2025, 75 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

6 days at or beyond a record
Daily record high and record low at Mae Hong Son, with 2026 drawn through them The band shows the record high and record low for each calendar day at Mae Hong Son. The lines show the 2026 daily maximum and minimum. 6 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 01020304050 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Mae Hong Son. The lines show the 2026 daily maximum and minimum. 6 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Mae Hong Son, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan37.5 C (99.5 F)6.0 C (42.8 F)29.5 C (85.1 F)12.8 C (55.0 F)
Feb38.5 C (101.3 F)8.2 C (46.8 F)35.0 C (95.0 F)18.0 C (64.4 F)
Mar41.3 C (106.3 F)11.0 C (51.8 F)39.3 C (102.7 F)21.0 C (69.8 F)
Apr44.6 C (112.3 F)12.0 C (53.6 F)42.3 C (108.1 F)20.3 C (68.5 F)
May44.0 C (111.2 F)15.2 C (59.4 F)41.0 C (105.8 F)21.5 C (70.7 F)
Jun40.5 C (104.9 F)19.2 C (66.6 F)37.6 C (99.7 F)23.6 C (74.5 F)
Jul38.5 C (101.3 F)20.0 C (68.0 F)36.0 C (96.8 F)22.7 C (72.9 F)
Aug39.8 C (103.6 F)20.0 C (68.0 F)36.6 C (97.9 F)22.9 C (73.2 F)
Sep36.7 C (98.1 F)19.7 C (67.5 F)n/an/a
Oct36.6 C (97.9 F)14.9 C (58.8 F)n/an/a
Nov35.6 C (96.1 F)9.3 C (48.7 F)n/an/a
Dec35.2 C (95.4 F)3.9 C (39.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Mae Hong Son by the year they were set 1,464 records at Mae Hong Son still stand. 1998 holds the most, with 77. 0204060801951: 161952: 61953: 181954: 141955: 271956: 221957: 241958: 351959: 351960: 351961: 411962: 181963: 111964: 131965: 281966: 231967: 221968: 181969: 91970: 111971: 191972: 161973: 101974: 161975: 201976: 151977: 251978: 201979: 171980: 171981: 121982: 21983: 191984: 91985: 71986: 171987: 131988: 91989: 161990: 461991: 181992: 371993: 241994: 301995: 131996: 131997: 201998: 771999: 372000: 372001: 282002: 212003: 82004: 52005: 112006: 72007: 152008: 82009: 212010: 402011: 92012: 82013: 222014: 22015: 282016: 282017: 222018: 132019: 122020: 162021: 122022: 182023: 232024: 242025: 61951195919671975198319911999200720152023
1,464 records at Mae Hong Son still stand. 1998 holds the most, with 77.
Standing records at Mae Hong Son by the year they were set
Year setStanding records
195116
19526
195318
195414
195527
195622
195724
195835
195935
196035
196141
196218
196311
196413
196528
196623
196722
196818
19699
197011
197119
197216
197310
197416
197520
197615
197725
197820
197917
198017
198112
19822
198319
19849
19857
198617
198713
19889
198916
199046
199118
199237
199324
199430
199513
199613
199720
199877
199937
200037
200128
200221
20038
20045
200511
20067
200715
20088
200921
201040
20119
20128
201322
20142
201528
201628
201722
201813
201912
202016
202112
202218
202323
202424
20256

All-Time Record Progression

12 new records
When Mae Hong Son set new all-time records 12 all-time records were set at Mae Hong Son between 28 July 1989 and 28 April 2016. Each dot is a new record. Record daily precipitationRecord high maximum temperatureRecord low maximum temperatureRecord low minimum temperatureRecord high minimum temperature28 July 1989: Record daily precipitation 205.0 mm (8.1 in)17 April 1991: Record high maximum temperature 43.0 C (109.4 F)24 December 1992: Record low maximum temperature 19.5 C (67.1 F)27 December 1993: Record low minimum temperature 5.1 C (41.2 F)24 April 1994: Record daily precipitation 230.1 mm (9.1 in)29 August 1994: Record daily precipitation 241.0 mm (9.5 in)9 May 1998: Record high maximum temperature 43.6 C (110.5 F)10 May 1998: Record high minimum temperature 29.9 C (85.8 F)25 December 1999: Record low minimum temperature 3.9 C (39.0 F)14 May 2010: Record high maximum temperature 43.9 C (111.0 F)15 May 2010: Record high maximum temperature 44.0 C (111.2 F)28 April 2016: Record high maximum temperature 44.6 C (112.3 F)199019952000200520102015
12 all-time records were set at Mae Hong Son between 28 July 1989 and 28 April 2016. Each dot is a new record.
When Mae Hong Son set new all-time records
DateKindDetail
1989-07-28Record daily precipitationRecord daily precipitation 205.0 mm (8.1 in)
1991-04-17Record high maximum temperatureRecord high maximum temperature 43.0 C (109.4 F)
1992-12-24Record low maximum temperatureRecord low maximum temperature 19.5 C (67.1 F)
1993-12-27Record low minimum temperatureRecord low minimum temperature 5.1 C (41.2 F)
1994-04-24Record daily precipitationRecord daily precipitation 230.1 mm (9.1 in)
1994-08-29Record daily precipitationRecord daily precipitation 241.0 mm (9.5 in)
1998-05-09Record high maximum temperatureRecord high maximum temperature 43.6 C (110.5 F)
1998-05-10Record high minimum temperatureRecord high minimum temperature 29.9 C (85.8 F)
1999-12-25Record low minimum temperatureRecord low minimum temperature 3.9 C (39.0 F)
2010-05-14Record high maximum temperatureRecord high maximum temperature 43.9 C (111.0 F)
2010-05-15Record high maximum temperatureRecord high maximum temperature 44.0 C (111.2 F)
2016-04-28Record high maximum temperatureRecord high maximum temperature 44.6 C (112.3 F)

Wettest Day of Each Month

Aug: 241.0 mm (9.5 in)
Record daily precipitation for each month at Mae Hong Son The wettest day on record for each calendar month at Mae Hong Son. The most was 241.0 mm (9.5 in) on 29 August 1994. 0100200300 Jan: 103.9 mm (4.1 in), 8 January 1994 Jan Feb: 51.1 mm (2.0 in), 12 February 1994 Feb Mar: 91.9 mm (3.6 in), 28 March 1994 Mar Apr: 230.1 mm (9.1 in), 24 April 1994 Apr May: 151.9 mm (6.0 in), 2 May 1994 May Jun: 220.0 mm (8.7 in), 16 June 1994 Jun Jul: 211.1 mm (8.3 in), 17 July 1994 Jul Aug: 241.0 mm (9.5 in), 29 August 1994 Aug Sep: 130.4 mm (5.1 in), 6 September 1956 Sep Oct: 138.7 mm (5.5 in), 20 October 2010 Oct Nov: 80.8 mm (3.2 in), 7 November 2024 Nov Dec: 43.9 mm (1.7 in), 24 December 1992 Dec
The wettest day on record for each calendar month at Mae Hong Son. The most was 241.0 mm (9.5 in) on 29 August 1994.
Record daily precipitation for each month at Mae Hong Son
MonthRecord daily precipitation (mm)Date
Jan103.9 mm (4.1 in)8 January 1994
Feb51.1 mm (2.0 in)12 February 1994
Mar91.9 mm (3.6 in)28 March 1994
Apr230.1 mm (9.1 in)24 April 1994
May151.9 mm (6.0 in)2 May 1994
Jun220.0 mm (8.7 in)16 June 1994
Jul211.1 mm (8.3 in)17 July 1994
Aug241.0 mm (9.5 in)29 August 1994
Sep130.4 mm (5.1 in)6 September 1956
Oct138.7 mm (5.5 in)20 October 2010
Nov80.8 mm (3.2 in)7 November 2024
Dec43.9 mm (1.7 in)24 December 1992

Period of Record Coverage

1954 to 2025
Days with data per year at Mae Hong Son 72 years of record at Mae Hong Son, 1954 to 2025. 25 years have data for under 90 percent of days and are left out of rankings: 1954, 1963, 1979, 1980, 1986, 2000, 2003, 2004 and others. 1954: 202 of 365 days1955: 365 of 365 days1956: 365 of 366 days1957: 335 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 365 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 271 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 334 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 364 of 365 days1971: 364 of 365 days1972: 363 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 364 of 365 days1976: 366 of 366 days1977: 364 of 365 days1978: 365 of 365 days1979: 245 of 365 days1980: 61 of 366 days1981: 364 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 364 of 365 days1986: 327 of 365 days1987: 332 of 365 days1988: 343 of 366 days1989: 350 of 365 days1990: 346 of 365 days1991: 350 of 365 days1992: 351 of 366 days1993: 349 of 365 days1994: 355 of 365 days1995: 357 of 365 days1996: 353 of 366 days1997: 350 of 365 days1998: 356 of 365 days1999: 349 of 365 days2000: 326 of 366 days2001: 333 of 365 days2002: 339 of 365 days2003: 324 of 365 days2004: 324 of 366 days2005: 331 of 365 days2006: 340 of 365 days2007: 344 of 365 days2008: 335 of 366 days2009: 311 of 365 days2010: 306 of 365 days2011: 289 of 365 days2012: 294 of 366 days2013: 295 of 365 days2014: 277 of 365 days2015: 268 of 365 days2016: 244 of 366 days2017: 268 of 365 days2018: 156 of 365 days2019: 160 of 365 days2020: 165 of 366 days2021: 164 of 365 days2022: 230 of 365 days2023: 194 of 365 days2024: 220 of 366 days2025: 176 of 365 days1960197019801990200020102020
72 years of record at Mae Hong Son, 1954 to 2025. 25 years have data for under 90 percent of days and are left out of rankings: 1954, 1963, 1979, 1980, 1986, 2000, 2003, 2004 and others.
Days with data per year at Mae Hong Son
YearDays with dataShare of yearComplete
195420255%No
1955365100%Yes
1956365100%Yes
195733592%Yes
1958365100%Yes
1959365100%Yes
1960365100%Yes
1961365100%Yes
1962365100%Yes
196327174%No
1964366100%Yes
1965365100%Yes
1966365100%Yes
196733492%Yes
1968366100%Yes
1969365100%Yes
1970364100%Yes
1971364100%Yes
197236399%Yes
1973365100%Yes
1974365100%Yes
1975364100%Yes
1976366100%Yes
1977364100%Yes
1978365100%Yes
197924567%No
19806117%No
1981364100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985364100%Yes
198632790%No
198733291%Yes
198834394%Yes
198935096%Yes
199034695%Yes
199135096%Yes
199235196%Yes
199334996%Yes
199435597%Yes
199535798%Yes
199635396%Yes
199735096%Yes
199835698%Yes
199934996%Yes
200032689%No
200133391%Yes
200233993%Yes
200332489%No
200432489%No
200533191%Yes
200634093%Yes
200734494%Yes
200833592%Yes
200931185%No
201030684%No
201128979%No
201229480%No
201329581%No
201427776%No
201526873%No
201624467%No
201726873%No
201815643%No
201916044%No
202016545%No
202116445%No
202223063%No
202319453%No
202422060%No
202517648%No

Latest Records

20
Latest records at Mae Hong Son
DateStationRecordValueBeat old record byOld record stoodSignificance
14 August 2025Mae Hong Son, THdaily rain92.7 mm (3.6 in)39.5 mm (1.6 in)64 years52 of 100 (Notable)
12 August 2025Mae Hong Son, THdaily high max34.5 C (94.1 F)0.5 C (0.9 F)15 years13 of 100 (Routine)
4 August 2025Mae Hong Son, THdaily high max36.6 C (97.9 F)1.4 C (2.5 F)3 years13 of 100 (Routine)
3 August 2025Mae Hong Son, THdaily high max35.3 C (95.5 F)0.4 C (0.7 F)3 years8 of 100 (Routine)
15 July 2025Mae Hong Son, THdaily high max36.0 C (96.8 F)0.3 C (0.5 F)36 years18 of 100 (Routine)
11 July 2025Mae Hong Son, THdaily rain57.7 mm (2.3 in)20.4 mm (0.8 in)19 years27 of 100 (Routine)
11 June 2025Mae Hong Son, THdaily high max (Tie)36.7 C (98.1 F)tie15 years2 of 100 (Routine)
7 June 2025Mae Hong Son, THdaily high max37.6 C (99.7 F)0.6 C (1.1 F)10 years12 of 100 (Routine)
23 May 2025Mae Hong Son, THdaily rain117.1 mm (4.6 in)53.1 mm (2.1 in)48 years58 of 100 (Notable)
18 May 2025Mae Hong Son, THdaily rain48.0 mm (1.9 in)5.6 mm (0.22 in)0 years10 of 100 (Routine)
25 February 2025Mae Hong Son, THdaily high min20.6 C (69.1 F)0.6 C (1.1 F)12 years12 of 100 (Routine)
24 February 2025Mae Hong Son, THdaily rain0.5 mm (0.02 in)0.5 mm (0.02 in)74 years20 of 100 (Routine)
15 December 2024Mae Hong Son, THdaily rain11.7 mm (0.5 in)3.1 mm (0.12 in)59 years20 of 100 (Routine)
7 November 2024Mae Hong Son, THmonthly rain80.8 mm (3.2 in)18.7 mm (0.7 in)52 years49 of 100 (Notable)
27 October 2024Mae Hong Son, THdaily high min24.2 C (75.6 F)0.4 C (0.7 F)58 years26 of 100 (Routine)
16 October 2024Mae Hong Son, THdaily high min24.1 C (75.4 F)0.1 C (0.2 F)66 years26 of 100 (Routine)
3 October 2024Mae Hong Son, THdaily rain36.3 mm (1.4 in)4.2 mm (0.17 in)60 years27 of 100 (Routine)
29 September 2024Mae Hong Son, THdaily high min25.2 C (77.4 F)0.5 C (0.9 F)4 years13 of 100 (Routine)
28 September 2024Mae Hong Son, THdaily high max (Tie)35.3 C (95.5 F)tie26 years3 of 100 (Routine)
25 September 2024Mae Hong Son, THdaily rain75.4 mm (3.0 in)37.6 mm (1.5 in)53 years47 of 100 (Notable)

Climate Trend

37 complete years, 1955 to 2006
Annual mean temperature at Mae Hong Son as warming stripes, 1955 to 2006 One stripe for each of 37 complete years at Mae Hong Son, 1955 to 2006. Blue stripes are years cooler than the station's own mean of 26.4 C (79.5 F); red stripes are warmer. The coolest year was 1955, at 25.7 C (78.2 F), and the warmest was 1998, at 27.7 C (81.8 F). The strongest colour marks a difference of 1.3 C (2.3 F). 1955: 25.7 C, -0.7 C from the station mean1956: 25.7 C, -0.7 C from the station mean1958: 26.2 C, -0.2 C from the station mean1959: 26.4 C, 0.0 C from the station mean1960: 26.5 C, +0.1 C from the station mean1961: 25.9 C, -0.5 C from the station mean1962: 26.2 C, -0.2 C from the station mean1964: 26.0 C, -0.4 C from the station mean1965: 26.0 C, -0.4 C from the station mean1966: 26.9 C, +0.5 C from the station mean1968: 26.3 C, -0.1 C from the station mean1969: 26.4 C, 0.0 C from the station mean1970: 26.4 C, 0.0 C from the station mean1971: 25.8 C, -0.6 C from the station mean1972: 26.6 C, +0.2 C from the station mean1973: 26.6 C, +0.2 C from the station mean1974: 26.2 C, -0.2 C from the station mean1975: 26.6 C, +0.2 C from the station mean1976: 26.2 C, -0.2 C from the station mean1977: 26.2 C, -0.2 C from the station mean1978: 26.4 C, 0.0 C from the station mean1986: 26.4 C, 0.0 C from the station mean1987: 26.7 C, +0.3 C from the station mean1988: 26.6 C, +0.2 C from the station mean1989: 26.5 C, +0.1 C from the station mean1990: 26.1 C, -0.3 C from the station mean1991: 26.8 C, +0.4 C from the station mean1993: 26.1 C, -0.3 C from the station mean1994: 26.4 C, 0.0 C from the station mean1996: 26.6 C, +0.2 C from the station mean1998: 27.7 C, +1.3 C from the station mean1999: 26.8 C, +0.4 C from the station mean2000: 26.3 C, -0.1 C from the station mean2001: 26.7 C, +0.3 C from the station mean2002: 26.6 C, +0.2 C from the station mean2005: 26.9 C, +0.5 C from the station mean2006: 26.6 C, +0.2 C from the station mean19551960196519701975198019851990199520002005
One stripe for each of 37 complete years at Mae Hong Son, 1955 to 2006. Blue stripes are years cooler than the station's own mean of 26.4 C (79.5 F); red stripes are warmer. The coolest year was 1955, at 25.7 C (78.2 F), and the warmest was 1998, at 27.7 C (81.8 F). The strongest colour marks a difference of 1.3 C (2.3 F).
Annual mean temperature at Mae Hong Son as warming stripes, 1955 to 2006
YearAnnual mean temperatureDifference from the station mean
195525.7 C-0.71 C
195625.7 C-0.67 C
195826.2 C-0.23 C
195926.4 C+0.04 C
196026.5 C+0.05 C
196125.9 C-0.49 C
196226.2 C-0.21 C
196426.0 C-0.39 C
196526.0 C-0.39 C
196626.9 C+0.48 C
196826.3 C-0.12 C
196926.4 C+0.03 C
197026.4 C+0.03 C
197125.8 C-0.62 C
197226.6 C+0.19 C
197326.6 C+0.16 C
197426.2 C-0.24 C
197526.6 C+0.19 C
197626.2 C-0.20 C
197726.2 C-0.18 C
197826.4 C-0.05 C
198626.4 C+0.04 C
198726.7 C+0.26 C
198826.6 C+0.15 C
198926.5 C+0.07 C
199026.1 C-0.31 C
199126.8 C+0.41 C
199326.1 C-0.34 C
199426.4 C-0.01 C
199626.6 C+0.19 C
199827.7 C+1.25 C
199926.8 C+0.43 C
200026.3 C-0.12 C
200126.7 C+0.34 C
200226.6 C+0.18 C
200526.9 C+0.49 C
200626.6 C+0.19 C

The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1955 to 2006. In Fahrenheit: 0.2 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Mae Hong Son
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.1 C (0.1 to 0.2) per decade0.2 F (0.1 to 0.4) per decade1955 to 200637Rise
Mean daily maximum0.3 C (0.2 to 0.4) per decade0.5 F (0.3 to 0.7) per decade1955 to 200637Rise
Mean daily minimum0.01 C (-0.09 to 0.10) per decade0.01 F (-0.16 to 0.19) per decade1955 to 200637Not clearly different from zero

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

1951 to 2025
Yearly extremes at Mae Hong Son: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)44.6 C (112.3 F)201641.2 C (106.2 F)72
Coldest night (TNn)3.9 C (39.0 F)19999.7 C (49.5 F)70
Wettest day (Rx1day)241.0 mm (9.5 in)199473.3 mm (2.9 in)75
Wettest five days (Rx5day)293.5 mm (11.6 in)1994126.2 mm (5.0 in)75
Longest dry spell (CDD)114 days197954 days75

Hottest day (TXx)

Hottest day (TXx) at Mae Hong Son by year The hottest day of the year at Mae Hong Son, 1951 to 2025. The record is 44.6 C (112.3 F) in 2016, marked on the chart; the median year is 41.2 C (106.2 F). 303540451960198020002020Record: 44.6 C (112.3 F) in 2016
The hottest day of the year at Mae Hong Son, 1951 to 2025. The record is 44.6 C (112.3 F) in 2016, marked on the chart; the median year is 41.2 C (106.2 F).
Hottest day (TXx) at Mae Hong Son by year
YearHottest day (TXx)
1951n/a
1952n/a
1953n/a
195434.6 C (94.3 F)
195539.5 C (103.1 F)
195639.7 C (103.5 F)
195740.7 C (105.3 F)
195841.2 C (106.2 F)
195941.0 C (105.8 F)
196042.0 C (107.6 F)
196140.5 C (104.9 F)
196240.5 C (104.9 F)
196340.6 C (105.1 F)
196439.5 C (103.1 F)
196540.0 C (104.0 F)
196641.0 C (105.8 F)
196741.0 C (105.8 F)
196840.7 C (105.3 F)
196941.4 C (106.5 F)
197040.6 C (105.1 F)
197139.4 C (102.9 F)
197238.6 C (101.5 F)
197341.0 C (105.8 F)
197440.0 C (104.0 F)
197542.4 C (108.3 F)
197639.0 C (102.2 F)
197738.5 C (101.3 F)
197840.1 C (104.2 F)
197940.4 C (104.7 F)
198033.5 C (92.3 F)
198139.7 C (103.5 F)
198240.0 C (104.0 F)
198342.6 C (108.7 F)
198441.5 C (106.7 F)
198541.5 C (106.7 F)
198641.1 C (106.0 F)
198740.8 C (105.4 F)
198842.4 C (108.3 F)
198941.9 C (107.4 F)
199041.1 C (106.0 F)
199143.0 C (109.4 F)
199242.5 C (108.5 F)
199341.3 C (106.3 F)
199440.0 C (104.0 F)
199542.8 C (109.0 F)
199640.4 C (104.7 F)
199742.2 C (108.0 F)
199843.6 C (110.5 F)
199941.2 C (106.2 F)
200038.8 C (101.8 F)
200142.3 C (108.1 F)
200242.4 C (108.3 F)
200341.3 C (106.3 F)
200442.3 C (108.1 F)
200541.6 C (106.9 F)
200641.3 C (106.3 F)
200742.0 C (107.6 F)
200842.4 C (108.3 F)
200940.5 C (104.9 F)
201044.0 C (111.2 F)
201138.4 C (101.1 F)
201240.0 C (104.0 F)
201341.3 C (106.3 F)
201441.8 C (107.2 F)
201541.5 C (106.7 F)
201644.6 C (112.3 F)
201742.0 C (107.6 F)
201840.9 C (105.6 F)
201942.8 C (109.0 F)
202043.3 C (109.9 F)
202141.2 C (106.2 F)
202241.2 C (106.2 F)
202342.9 C (109.2 F)
202443.8 C (110.8 F)
202542.3 C (108.1 F)

Coldest night (TNn)

Coldest night (TNn) at Mae Hong Son by year The coldest night of the year at Mae Hong Son, 1951 to 2025. The record is 3.9 C (39.0 F) in 1999, marked on the chart; the median year is 9.7 C (49.5 F). 051015201960198020002020Record: 3.9 C (39.0 F) in 1999
The coldest night of the year at Mae Hong Son, 1951 to 2025. The record is 3.9 C (39.0 F) in 1999, marked on the chart; the median year is 9.7 C (49.5 F).
Coldest night (TNn) at Mae Hong Son by year
YearColdest night (TNn)
19518.5 C (47.3 F)
19528.8 C (47.8 F)
19536.0 C (42.8 F)
19548.0 C (46.4 F)
19558.2 C (46.8 F)
19568.3 C (46.9 F)
19578.2 C (46.8 F)
19588.5 C (47.3 F)
19599.0 C (48.2 F)
196010.1 C (50.2 F)
196110.2 C (50.4 F)
19629.3 C (48.7 F)
19639.6 C (49.3 F)
19649.1 C (48.4 F)
19659.7 C (49.5 F)
19669.3 C (48.7 F)
196710.3 C (50.5 F)
19689.2 C (48.6 F)
19699.0 C (48.2 F)
197010.0 C (50.0 F)
19719.0 C (48.2 F)
19729.2 C (48.6 F)
19737.2 C (45.0 F)
19746.2 C (43.2 F)
19758.7 C (47.7 F)
19769.7 C (49.5 F)
197711.5 C (52.7 F)
197810.4 C (50.7 F)
197910.5 C (50.9 F)
198010.2 C (50.4 F)
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
198610.5 C (50.9 F)
198711.0 C (51.8 F)
198810.8 C (51.4 F)
19898.3 C (46.9 F)
19907.0 C (44.6 F)
19919.0 C (48.2 F)
19928.5 C (47.3 F)
19935.1 C (41.2 F)
19949.2 C (48.6 F)
19959.0 C (48.2 F)
19969.8 C (49.6 F)
19978.2 C (46.8 F)
19989.9 C (49.8 F)
19993.9 C (39.0 F)
200010.2 C (50.4 F)
20019.3 C (48.7 F)
200210.6 C (51.1 F)
200311.5 C (52.7 F)
200410.2 C (50.4 F)
200511.7 C (53.1 F)
200610.2 C (50.4 F)
200710.5 C (50.9 F)
20085.4 C (41.7 F)
200912.0 C (53.6 F)
201011.9 C (53.4 F)
201112.2 C (54.0 F)
201210.9 C (51.6 F)
20139.8 C (49.6 F)
201411.0 C (51.8 F)
201511.4 C (52.5 F)
201610.0 C (50.0 F)
20177.8 C (46.0 F)
20188.4 C (47.1 F)
201912.6 C (54.7 F)
20209.3 C (48.7 F)
202112.0 C (53.6 F)
202210.8 C (51.4 F)
202314.0 C (57.2 F)
202415.5 C (59.9 F)
202512.8 C (55.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Mae Hong Son by year The wettest day of the year at Mae Hong Son, 1951 to 2025. The record is 241.0 mm (9.5 in) in 1994, marked on the chart; the median year is 73.3 mm (2.9 in). 01002003001960198020002020Record: 241.0 mm (9.5 in) in 1994
The wettest day of the year at Mae Hong Son, 1951 to 2025. The record is 241.0 mm (9.5 in) in 1994, marked on the chart; the median year is 73.3 mm (2.9 in).
Wettest day (Rx1day) at Mae Hong Son by year
YearWettest day (Rx1day)
195145.5 mm (1.8 in)
1952110.0 mm (4.3 in)
195363.0 mm (2.5 in)
195475.8 mm (3.0 in)
195582.3 mm (3.2 in)
1956130.4 mm (5.1 in)
195759.6 mm (2.3 in)
195864.5 mm (2.5 in)
1959110.7 mm (4.4 in)
196055.5 mm (2.2 in)
196149.2 mm (1.9 in)
196284.8 mm (3.3 in)
196345.0 mm (1.8 in)
196474.8 mm (2.9 in)
1965108.7 mm (4.3 in)
196694.9 mm (3.7 in)
196773.3 mm (2.9 in)
196898.1 mm (3.9 in)
196973.7 mm (2.9 in)
197055.7 mm (2.2 in)
197157.1 mm (2.2 in)
197280.2 mm (3.2 in)
197393.2 mm (3.7 in)
197470.8 mm (2.8 in)
1975120.5 mm (4.7 in)
197693.5 mm (3.7 in)
197785.6 mm (3.4 in)
197880.9 mm (3.2 in)
197959.8 mm (2.4 in)
198047.2 mm (1.9 in)
198153.0 mm (2.1 in)
198290.5 mm (3.6 in)
198352.6 mm (2.1 in)
198481.5 mm (3.2 in)
198552.8 mm (2.1 in)
198668.1 mm (2.7 in)
198787.9 mm (3.5 in)
198890.9 mm (3.6 in)
1989205.0 mm (8.1 in)
1990102.1 mm (4.0 in)
199164.0 mm (2.5 in)
199293.0 mm (3.7 in)
1993126.0 mm (5.0 in)
1994241.0 mm (9.5 in)
199549.0 mm (1.9 in)
199657.9 mm (2.3 in)
199756.9 mm (2.2 in)
199875.9 mm (3.0 in)
199931.0 mm (1.2 in)
200095.0 mm (3.7 in)
200145.0 mm (1.8 in)
200268.6 mm (2.7 in)
200350.0 mm (2.0 in)
200464.3 mm (2.5 in)
200595.5 mm (3.8 in)
200685.1 mm (3.4 in)
200767.8 mm (2.7 in)
200894.7 mm (3.7 in)
200935.8 mm (1.4 in)
2010138.7 mm (5.5 in)
201166.3 mm (2.6 in)
201265.0 mm (2.6 in)
201359.7 mm (2.4 in)
201455.9 mm (2.2 in)
201553.3 mm (2.1 in)
201657.4 mm (2.3 in)
201771.6 mm (2.8 in)
201861.7 mm (2.4 in)
201987.9 mm (3.5 in)
202066.8 mm (2.6 in)
202169.6 mm (2.7 in)
202281.3 mm (3.2 in)
202374.7 mm (2.9 in)
202480.8 mm (3.2 in)
2025117.1 mm (4.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Mae Hong Son by year The wettest five days of the year at Mae Hong Son, 1951 to 2025. The record is 293.5 mm (11.6 in) in 1994, marked on the chart; the median year is 126.2 mm (5.0 in). 01002003001960198020002020Record: 293.5 mm (11.6 in) in 1994
The wettest five days of the year at Mae Hong Son, 1951 to 2025. The record is 293.5 mm (11.6 in) in 1994, marked on the chart; the median year is 126.2 mm (5.0 in).
Wettest five days (Rx5day) at Mae Hong Son by year
YearWettest five days (Rx5day)
195199.7 mm (3.9 in)
1952120.3 mm (4.7 in)
1953139.2 mm (5.5 in)
195491.8 mm (3.6 in)
1955134.7 mm (5.3 in)
1956185.8 mm (7.3 in)
1957137.3 mm (5.4 in)
195893.1 mm (3.7 in)
1959229.8 mm (9.0 in)
1960124.5 mm (4.9 in)
1961111.7 mm (4.4 in)
1962154.8 mm (6.1 in)
1963111.0 mm (4.4 in)
1964121.3 mm (4.8 in)
1965206.4 mm (8.1 in)
1966134.4 mm (5.3 in)
1967119.5 mm (4.7 in)
1968183.4 mm (7.2 in)
1969126.1 mm (5.0 in)
1970116.0 mm (4.6 in)
1971121.5 mm (4.8 in)
1972105.0 mm (4.1 in)
1973192.8 mm (7.6 in)
1974100.5 mm (4.0 in)
1975136.3 mm (5.4 in)
1976205.2 mm (8.1 in)
1977145.5 mm (5.7 in)
1978128.3 mm (5.1 in)
1979103.0 mm (4.1 in)
1980116.3 mm (4.6 in)
1981126.6 mm (5.0 in)
198296.2 mm (3.8 in)
1983126.2 mm (5.0 in)
1984126.6 mm (5.0 in)
1985130.4 mm (5.1 in)
1986108.0 mm (4.3 in)
1987116.1 mm (4.6 in)
1988136.1 mm (5.4 in)
1989263.9 mm (10.4 in)
1990133.9 mm (5.3 in)
1991136.9 mm (5.4 in)
1992186.4 mm (7.3 in)
1993144.0 mm (5.7 in)
1994293.5 mm (11.6 in)
1995106.1 mm (4.2 in)
199690.9 mm (3.6 in)
1997119.4 mm (4.7 in)
1998167.1 mm (6.6 in)
199972.1 mm (2.8 in)
2000126.8 mm (5.0 in)
200190.0 mm (3.5 in)
2002105.7 mm (4.2 in)
2003102.3 mm (4.0 in)
2004147.1 mm (5.8 in)
2005199.3 mm (7.8 in)
2006143.7 mm (5.7 in)
2007123.7 mm (4.9 in)
2008103.6 mm (4.1 in)
200977.0 mm (3.0 in)
2010164.5 mm (6.5 in)
2011142.8 mm (5.6 in)
2012146.9 mm (5.8 in)
2013107.7 mm (4.2 in)
2014101.6 mm (4.0 in)
201598.7 mm (3.9 in)
2016113.1 mm (4.5 in)
2017114.8 mm (4.5 in)
2018119.1 mm (4.7 in)
2019139.6 mm (5.5 in)
2020143.7 mm (5.7 in)
202196.5 mm (3.8 in)
2022185.2 mm (7.3 in)
2023117.8 mm (4.6 in)
2024145.8 mm (5.7 in)
2025141.0 mm (5.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Mae Hong Son by year The longest dry spell of the year at Mae Hong Son, 1951 to 2025. The record is 114 days in 1979, marked on the chart; the median year is 54 days. 0501001501960198020002020Record: 114 days in 1979
The longest dry spell of the year at Mae Hong Son, 1951 to 2025. The record is 114 days in 1979, marked on the chart; the median year is 54 days.
Longest dry spell (CDD) at Mae Hong Son by year
YearLongest dry spell (CDD)
195149 days
195261 days
195375 days
195452 days
195587 days
195661 days
195743 days
195856 days
195972 days
196056 days
196150 days
1962107 days
196378 days
196489 days
196540 days
196693 days
196752 days
196893 days
1969100 days
197076 days
197171 days
197271 days
197365 days
197485 days
1975113 days
197673 days
197764 days
197842 days
1979114 days
198074 days
198145 days
198276 days
198394 days
198470 days
198597 days
198617 days
198739 days
198861 days
198980 days
199051 days
199154 days
199249 days
199367 days
199422 days
199558 days
199655 days
199781 days
199888 days
199919 days
200011 days
20014 days
200224 days
200357 days
200490 days
200573 days
20063 days
20074 days
20083 days
20093 days
20104 days
20115 days
20124 days
20133 days
20147 days
20154 days
20163 days
20174 days
20184 days
20194 days
20204 days
20219 days
20227 days
20234 days
20243 days
20255 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.

Rainfall Return Levels

48 years, 1951 to 2004

A day with at least 73.7 mm (2.9 in) of rain is expected about once in 2 years. A day with at least 226.2 mm (8.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Mae Hong Son: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years73.7 mm (2.9 in)
5 years101.4 mm (4.0 in)
10 years124.1 mm (4.9 in)
25 years158.9 mm (6.3 in)
50 years190.0 mm (7.5 in)Longer than the 48 years of record
100 years226.2 mm (8.9 in)Longer than the 48 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 48 years of values from 1951 to 2004.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 241.0 mm (9.5 in) in 1994; 205.0 mm (8.1 in) in 1989; 130.4 mm (5.1 in) in 1956.

Download the Data

  • Data for Mae Hong Son standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Mae Hong Son 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

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