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Data as of 2025-12-31
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Built 2026-10-18 (18 October 2026)

Chiang Mai Threshold Days by Year

12 fixed thresholds counted per year at Chiang Mai (TH000048327): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chiang Mai Thresholds

  • Chiang Mai: days with 10 mm (0.39 in) or more of precipitation in 51 years, most in 1953 with 57.
  • Chiang Mai: days with 25 mm (0.98 in) or more of precipitation in 51 years, most in 1953 with 22.
  • Chiang Mai: days with a maximum temperature at or above 30 C (86 F) in 48 years, most in 2012 with 337.
  • Chiang Mai: days with a maximum temperature at or above 35 C (95 F) in 48 years, most in 2015 with 126.
  • 12 fixed thresholds have at least one qualifying day at Chiang Mai.
48 years with a qualifying day
Days at or above 30 C (86 F) per year at Chiang Mai Days per year at Chiang Mai with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 337 in 2012. 01002003004001943: 2691948: 3001952: 2491953: 2611954: 2931955: 2561956: 2671957: 3101958: 2811959: 2991960: 2621961: 2421962: 2541963: 2521964: 2601965: 2681966: 3101967: 2831968: 3161969: 2791970: 2751971: 2391972: 2691973: 2581974: 2601975: 2771976: 2551977: 1601978: 2911979: 3151980: 3021981: 2721982: 2891983: 2751984: 2911985: 3021986: 2721987: 2742009: 2952010: 2882011: 2862012: 3372013: 2872014: 3272015: 3192016: 3172017: 2942025: 1941943195519601965197019751980198520112016
Days per year at Chiang Mai with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 337 in 2012.
Days at or above 30 C (86 F) per year at Chiang Mai
YearDaysDecade average
1943269284.5
1948300284.5
1952249277
1953261277
1954293277
1955256277
1956267277
1957310277
1958281277
1959299277
1960262272.6
1961242272.6
1962254272.6
1963252272.6
1964260272.6
1965268272.6
1966310272.6
1967283272.6
1968316272.6
1969279272.6
1970275259.9
1971239259.9
1972269259.9
1973258259.9
1974260259.9
1975277259.9
1976255259.9
1977160259.9
1978291259.9
1979315259.9
1980302284.6
1981272284.6
1982289284.6
1983275284.6
1984291284.6
1985302284.6
1986272284.6
1987274284.6
2009295295
2010288306.9
2011286306.9
2012337306.9
2013287306.9
2014327306.9
2015319306.9
2016317306.9
2017294306.9
2025194194
First to last qualifying date each year at Chiang Mai For each year, a bar from the first to the last day at Chiang Mai meeting 30 C (86 F). 1943: 1 January 1943 to 18 December 19431948: 8 January 1948 to 31 December 19481952: 2 February 1952 to 8 December 19521953: 12 January 1953 to 21 December 19531954: 1 January 1954 to 30 December 19541955: 2 January 1955 to 22 November 19551956: 8 January 1956 to 24 December 19561957: 3 January 1957 to 31 December 19571958: 1 January 1958 to 21 November 19581959: 7 January 1959 to 29 December 19591960: 5 January 1960 to 27 November 19601961: 4 January 1961 to 27 December 19611962: 18 January 1962 to 28 December 19621963: 2 January 1963 to 5 December 19631964: 5 January 1964 to 2 December 19641965: 7 January 1965 to 29 December 19651966: 8 January 1966 to 28 December 19661967: 7 January 1967 to 7 December 19671968: 10 January 1968 to 31 December 19681969: 1 January 1969 to 31 December 19691970: 9 January 1970 to 27 December 19701971: 18 January 1971 to 25 December 19711972: 29 January 1972 to 12 December 19721973: 10 January 1973 to 13 December 19731974: 19 January 1974 to 31 December 19741975: 1 January 1975 to 9 December 19751976: 14 February 1976 to 27 December 19761977: 9 January 1977 to 7 November 19771978: 27 January 1978 to 31 December 19781979: 2 January 1979 to 23 December 19791980: 1 January 1980 to 17 December 19801981: 25 January 1981 to 13 December 19811982: 13 January 1982 to 7 December 19821983: 7 January 1983 to 18 December 19831984: 17 January 1984 to 28 December 19841985: 1 January 1985 to 13 December 19851986: 15 January 1986 to 21 December 19861987: 3 January 1987 to 29 November 19872009: 20 January 2009 to 31 December 20092010: 1 January 2010 to 24 December 20102011: 4 January 2011 to 31 December 20112012: 1 January 2012 to 31 December 20122013: 1 January 2013 to 28 November 20132014: 3 January 2014 to 31 December 20142015: 4 January 2015 to 31 December 20152016: 1 January 2016 to 28 December 20162017: 3 January 2017 to 30 December 20172025: 1 January 2025 to 24 August 202519431956196219681974198019862013JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Chiang Mai meeting 30 C (86 F).
First to last qualifying date each year at Chiang Mai
YearFirst dateLast date
19431943-01-011943-12-18
19481948-01-081948-12-31
19521952-02-021952-12-08
19531953-01-121953-12-21
19541954-01-011954-12-30
19551955-01-021955-11-22
19561956-01-081956-12-24
19571957-01-031957-12-31
19581958-01-011958-11-21
19591959-01-071959-12-29
19601960-01-051960-11-27
19611961-01-041961-12-27
19621962-01-181962-12-28
19631963-01-021963-12-05
19641964-01-051964-12-02
19651965-01-071965-12-29
19661966-01-081966-12-28
19671967-01-071967-12-07
19681968-01-101968-12-31
19691969-01-011969-12-31
19701970-01-091970-12-27
19711971-01-181971-12-25
19721972-01-291972-12-12
19731973-01-101973-12-13
19741974-01-191974-12-31
19751975-01-011975-12-09
19761976-02-141976-12-27
19771977-01-091977-11-07
19781978-01-271978-12-31
19791979-01-021979-12-23
19801980-01-011980-12-17
19811981-01-251981-12-13
19821982-01-131982-12-07
19831983-01-071983-12-18
19841984-01-171984-12-28
19851985-01-011985-12-13
19861986-01-151986-12-21
19871987-01-031987-11-29
20092009-01-202009-12-31
20102010-01-012010-12-24
20112011-01-042011-12-31
20122012-01-012012-12-31
20132013-01-012013-11-28
20142014-01-032014-12-31
20152015-01-042015-12-31
20162016-01-012016-12-28
20172017-01-032017-12-30
20252025-01-012025-08-24

Every Fixed Threshold

Fixed thresholds at Chiang Mai
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days483372012194
35 C (95 F): Days48126201582
40 C (104 F): Days182920165
90 F (32.2 C): Days482492015168
100 F (37.8 C): Days4555201623
20 C (68 F): Tropical nights (min33255197596
25 C (77 F): Days with min2598197912
10 mm (0.39 in): Days with 10 mm or more rain5157195327
25 mm (0.98 in): Days with 25 mm or more rain5122195310
50 mm (1.97 in): Days with 50 mm or more rain481119533
100 mm (3.94 in): Days with 100 mm or more rain14119532
200 mm (7.87 in): Days with 200 mm or more rain10n/a1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1943.

Download the Data

  • Data for Chiang Mai 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). Threshold counts are computed by this site.

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