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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Savannakhet L-39 Threshold Days by Year (LAW00041074)

10 fixed thresholds counted per year at Savannakhet L-39 (LAW00041074): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Savannakhet L-39 Thresholds

  • Savannakhet L-39: days with a maximum temperature at or above 30 C (86 F) in 2 years, most in 1970 with 263.
  • Savannakhet L-39: days with a maximum temperature at or above 35 C (95 F) in 2 years, most in 1970 with 100.
  • Savannakhet L-39: days with a maximum temperature at or above 90 F (32.2 C) in 2 years, most in 1970 with 211.
  • Savannakhet L-39: days with a maximum temperature at or above 100 F (37.8 C) in 2 years, most in 1970 with 31.
  • 10 fixed thresholds have at least one qualifying day at Savannakhet L-39.
2 years with a qualifying day
Days at or above 30 C (86 F) per year at Savannakhet L-39 Days per year at Savannakhet L-39 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 263 in 1970. 01002003001970: 2632025: 12419702025
Days per year at Savannakhet L-39 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 263 in 1970.
Days at or above 30 C (86 F) per year at Savannakhet L-39
YearDaysDecade average
1970263263
2025124124
First to last qualifying date each year at Savannakhet L-39 For each year, a bar from the first to the last day at Savannakhet L-39 meeting 30 C (86 F). 1970: 3 January 1970 to 25 December 19702025: 2 January 2025 to 24 August 202519702025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Savannakhet L-39 meeting 30 C (86 F).
First to last qualifying date each year at Savannakhet L-39
YearFirst dateLast date
19701970-01-031970-12-25
20252025-01-022025-08-24

Every Fixed Threshold

Fixed thresholds at Savannakhet L-39
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days22631970124
35 C (95 F): Days2100197038
40 C (104 F): Days1319703
90 F (32.2 C): Days2211197091
100 F (37.8 C): Days23119708
20 C (68 F): Tropical nights (min2239197093
25 C (77 F): Days with min292197058
10 mm (0.39 in): Days with 10 mm or more rain237197026
25 mm (0.98 in): Days with 25 mm or more rain214197014
50 mm (1.97 in): Days with 50 mm or more rain2119703

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1970.

Download the Data

  • Data for Savannakhet L-39 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).