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Built 2026-10-17 (17 October 2026)

Interlaken Threshold Days by Year

4 fixed thresholds counted per year at Interlaken (ASN00096009): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Interlaken Thresholds

  • Interlaken: days with 10 mm (0.39 in) or more of precipitation in 30 years, most in 1924 with 30.
  • Interlaken: days with 25 mm (0.98 in) or more of precipitation in 27 years, most in 1916 with 11.
  • Interlaken: days with 50 mm (1.97 in) or more of precipitation in 13 years, most in 1931 with 3.
  • Interlaken: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1960 with 2.
  • 4 fixed thresholds have at least one qualifying day at Interlaken.
30 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Interlaken Days per year at Interlaken with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1924. 01020301904: 251910: 211911: 141912: 201915: 151916: 291919: 91921: 111922: 231923: 261924: 301925: 121931: 201932: 291960: 251961: 141962: 141963: 111964: 251965: 181966: 181967: 101968: 191969: 161970: 291971: 261972: 141973: 241974: 241975: 181904191219191923193119611964196719701973
Days per year at Interlaken with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1924.
Days with 10 mm (0.39 in) or more of precipitation per year at Interlaken
YearDaysDecade average
19042525
19102118
19111418
19122018
19151518
19162918
1919918
19211120.4
19222320.4
19232620.4
19243020.4
19251220.4
19312024.5
19322924.5
19602517
19611417
19621417
19631117
19642517
19651817
19661817
19671017
19681917
19691617
19702922.5
19712622.5
19721422.5
19732422.5
19742422.5
19751822.5
First to last qualifying date each year at Interlaken For each year, a bar from the first to the last day at Interlaken meeting 10 mm (0.39 in). 1904: 4 January 1904 to 27 December 19041910: 10 January 1910 to 22 December 19101911: 13 February 1911 to 18 December 19111912: 11 February 1912 to 30 November 19121915: 6 January 1915 to 10 November 19151916: 29 January 1916 to 30 December 19161919: 18 February 1919 to 8 October 19191921: 2 January 1921 to 31 October 19211922: 9 January 1922 to 23 December 19221923: 29 January 1923 to 5 December 19231924: 26 January 1924 to 25 November 19241925: 21 February 1925 to 18 November 19251931: 20 February 1931 to 20 November 19311932: 9 January 1932 to 24 December 19321960: 9 January 1960 to 4 November 19601961: 11 January 1961 to 16 December 19611962: 27 March 1962 to 21 October 19621963: 6 January 1963 to 9 November 19631964: 7 February 1964 to 25 December 19641965: 11 January 1965 to 5 December 19651966: 5 February 1966 to 19 December 19661967: 1 July 1967 to 31 October 19671968: 27 February 1968 to 31 December 19681969: 15 January 1969 to 13 December 19691970: 3 January 1970 to 31 December 19701971: 16 January 1971 to 27 December 19711972: 10 January 1972 to 25 December 19721973: 13 January 1973 to 22 December 19731974: 17 January 1974 to 29 December 19741975: 15 March 1975 to 3 December 197519041915192219311962196619701974JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Interlaken meeting 10 mm (0.39 in).
First to last qualifying date each year at Interlaken
YearFirst dateLast date
19041904-01-041904-12-27
19101910-01-101910-12-22
19111911-02-131911-12-18
19121912-02-111912-11-30
19151915-01-061915-11-10
19161916-01-291916-12-30
19191919-02-181919-10-08
19211921-01-021921-10-31
19221922-01-091922-12-23
19231923-01-291923-12-05
19241924-01-261924-11-25
19251925-02-211925-11-18
19311931-02-201931-11-20
19321932-01-091932-12-24
19601960-01-091960-11-04
19611961-01-111961-12-16
19621962-03-271962-10-21
19631963-01-061963-11-09
19641964-02-071964-12-25
19651965-01-111965-12-05
19661966-02-051966-12-19
19671967-07-011967-10-31
19681968-02-271968-12-31
19691969-01-151969-12-13
19701970-01-031970-12-31
19711971-01-161971-12-27
19721972-01-101972-12-25
19731973-01-131973-12-22
19741974-01-171974-12-29
19751975-03-151975-12-03

Every Fixed Threshold

Fixed thresholds at Interlaken
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3030192418
25 mm (0.98 in): Days with 25 mm or more rain271119166
50 mm (1.97 in): Days with 50 mm or more rain13319312
100 mm (3.94 in): Days with 100 mm or more rain3219601

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1904.

Download the Data

  • Data for Interlaken 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

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