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

Chittenden Pass Threshold Days by Year

4 fixed thresholds counted per year at Chittenden Pass (USC00041739): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chittenden Pass Thresholds

  • Chittenden Pass: days with 10 mm (0.39 in) or more of precipitation in 23 years, most in 1967 with 26.
  • Chittenden Pass: days with 25 mm (0.98 in) or more of precipitation in 23 years, most in 1973 with 11.
  • Chittenden Pass: days with 50 mm (1.97 in) or more of precipitation in 6 years, most in 1955 with 2.
  • Chittenden Pass: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1969 with 1.
  • 4 fixed thresholds have at least one qualifying day at Chittenden Pass.
23 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Chittenden Pass Days per year at Chittenden Pass with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1967. 01020301948: 151950: 201953: 81954: 161955: 191957: 121958: 211959: 111960: 131961: 81962: 151963: 201965: 191966: 121967: 261968: 171969: 251970: 221971: 121972: 131973: 261974: 201975: 1819481954195819611965196819711974
Days per year at Chittenden Pass with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1967.
Days with 10 mm (0.39 in) or more of precipitation per year at Chittenden Pass
YearDaysDecade average
19481515
19502015.3
1953815.3
19541615.3
19551915.3
19571215.3
19582115.3
19591115.3
19601317.2
1961817.2
19621517.2
19632017.2
19651917.2
19661217.2
19672617.2
19681717.2
19692517.2
19702218.5
19711218.5
19721318.5
19732618.5
19742018.5
19751818.5
First to last qualifying date each year at Chittenden Pass For each year, a bar from the first to the last day at Chittenden Pass meeting 10 mm (0.39 in). 1948: 5 February 1948 to 26 December 19481950: 8 January 1950 to 8 December 19501953: 6 January 1953 to 4 December 19531954: 17 January 1954 to 10 December 19541955: 1 January 1955 to 31 December 19551957: 13 January 1957 to 18 December 19571958: 10 January 1958 to 27 December 19581959: 6 January 1959 to 24 December 19591960: 12 January 1960 to 2 December 19601961: 26 January 1961 to 2 December 19611962: 20 January 1962 to 17 December 19621963: 30 January 1963 to 24 November 19631965: 3 January 1965 to 31 December 19651966: 1 January 1966 to 6 December 19661967: 21 January 1967 to 19 December 19671968: 10 January 1968 to 26 December 19681969: 13 January 1969 to 25 December 19691970: 10 January 1970 to 27 December 19701971: 12 January 1971 to 23 December 19711972: 27 January 1972 to 6 December 19721973: 9 January 1973 to 28 December 19731974: 4 January 1974 to 28 December 19741975: 7 January 1975 to 30 October 197519481954195819611965196819711974JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Chittenden Pass meeting 10 mm (0.39 in).
First to last qualifying date each year at Chittenden Pass
YearFirst dateLast date
19481948-02-051948-12-26
19501950-01-081950-12-08
19531953-01-061953-12-04
19541954-01-171954-12-10
19551955-01-011955-12-31
19571957-01-131957-12-18
19581958-01-101958-12-27
19591959-01-061959-12-24
19601960-01-121960-12-02
19611961-01-261961-12-02
19621962-01-201962-12-17
19631963-01-301963-11-24
19651965-01-031965-12-31
19661966-01-011966-12-06
19671967-01-211967-12-19
19681968-01-101968-12-26
19691969-01-131969-12-25
19701970-01-101970-12-27
19711971-01-121971-12-23
19721972-01-271972-12-06
19731973-01-091973-12-28
19741974-01-041974-12-28
19751975-01-071975-10-30

Every Fixed Threshold

Fixed thresholds at Chittenden Pass
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2326196718
25 mm (0.98 in): Days with 25 mm or more rain231119734
50 mm (1.97 in): Days with 50 mm or more rain6219552
100 mm (3.94 in): Days with 100 mm or more rain1119691

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1948.

Download the Data

  • Data for Chittenden Pass 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

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