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Data as of 2026-10-12
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Built 2026-10-19 (19 October 2026)

Lanna Threshold Days by Year (SWE00138458)

10 fixed thresholds counted per year at Lanna (SWE00138458): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lanna Thresholds

  • Lanna: days with 10 mm (0.39 in) or more of precipitation in 82 years, most in 1953 with 23.
  • Lanna: days with 25 mm (0.98 in) or more of precipitation in 54 years, most in 2021 with 5.
  • Lanna: nights with a minimum temperature at or below 0 C (32 F) in 27 years, most in 1956 with 173.
  • Lanna: nights with a minimum temperature at or below -10 C (14 F) in 27 years, most in 1963 with 57.
  • 10 fixed thresholds have at least one qualifying day at Lanna.
7 years with a qualifying day
Days at or above 30 C (86 F) per year at Lanna Days per year at Lanna with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 5 in 1969. 02461945: 11948: 41955: 11958: 11968: 21969: 51970: 21945194819551958196819691970
Days per year at Lanna with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 5 in 1969.
Days at or above 30 C (86 F) per year at Lanna
YearDaysDecade average
194512.5
194842.5
195511
195811
196823.5
196953.5
197022
First to last qualifying date each year at Lanna For each year, a bar from the first to the last day at Lanna meeting 30 C (86 F). 1945: 16 July 1945 to 16 July 19451948: 29 July 1948 to 1 August 19481955: 13 July 1955 to 13 July 19551958: 26 May 1958 to 26 May 19581968: 17 June 1968 to 18 June 19681969: 29 July 1969 to 7 August 19691970: 19 June 1970 to 20 June 19701945194819551958196819691970JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Lanna meeting 30 C (86 F).
First to last qualifying date each year at Lanna
YearFirst dateLast date
19451945-07-161945-07-16
19481948-07-291948-08-01
19551955-07-131955-07-13
19581958-05-261958-05-26
19681968-06-171968-06-18
19691969-07-291969-08-07
19701970-06-191970-06-20

Every Fixed Threshold

Fixed thresholds at Lanna
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days7519692
90 F (32.2 C): Days2119691
0 C (32 F): Ice days (max2580196326
0 C (32 F): Frost days (min271731956126
-10 C (14 F): Days with min2757196319
-20 C (-4 F): Days with min1616197016
-30 C (-22 F): Days with min4219661
10 mm (0.39 in): Days with 10 mm or more rain822319533
25 mm (0.98 in): Days with 25 mm or more rain54520211
50 mm (1.97 in): Days with 50 mm or more rain4119581

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1945.

Download the Data

  • Data for Lanna 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 (2026-10-12).