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

Summit Lake Threshold Days by Year

10 fixed thresholds counted per year at Summit Lake (USC00508813): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Summit Lake Thresholds

  • Summit Lake: days with 10 mm (0.39 in) or more of precipitation in 5 years, most in 1997 with 14.
  • Summit Lake: days with 10 cm (3.9 in) or more of snowfall in 5 years, most in 1997 with 12.
  • Summit Lake: nights with a minimum temperature at or below 0 C (32 F) in 4 years, most in 1969 with 265.
  • Summit Lake: nights with a minimum temperature at or below -10 C (14 F) in 4 years, most in 1968 with 179.
  • 10 fixed thresholds have at least one qualifying day at Summit Lake.
4 years with a qualifying day
Nights at or below 0 C (32 F) per year at Summit Lake Days per year at Summit Lake with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 265 in 1969. 01002003001968: 2611969: 2651970: 2591997: 2541968196919701997
Days per year at Summit Lake with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 265 in 1969.
Nights at or below 0 C (32 F) per year at Summit Lake
YearDaysDecade average
1968261263
1969265263
1970259259
1997254254
First to last qualifying date each year at Summit Lake For each year, a bar from the first to the last day at Summit Lake meeting 0 C (32 F). 1968: 1 January 1968 to 31 December 19681969: 1 January 1969 to 31 December 19691970: 1 January 1970 to 31 December 19701997: 1 January 1997 to 31 December 19971968196919701997JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Summit Lake meeting 0 C (32 F).
First to last qualifying date each year at Summit Lake
YearFirst dateLast date
19681968-01-011968-12-31
19691969-01-011969-12-31
19701970-01-011970-12-31
19971997-01-011997-12-31

Every Fixed Threshold

Fixed thresholds at Summit Lake
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
0 C (32 F): Ice days (max31741997174
0 C (32 F): Frost days (min42651969254
-10 C (14 F): Days with min41791968173
-20 C (-4 F): Days with min4102196876
-30 C (-22 F): Days with min443196821
-40 C (-40 F): Days with min4519681
10 mm (0.39 in): Days with 10 mm or more rain514199714
25 mm (0.98 in): Days with 25 mm or more rain4419974
10 cm (3.9 in): Days with 10 cm or more snowfall512199712
25 cm (9.8 in): Days with 25 cm or more snowfall2119684

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1968.

Download the Data

  • Data for Summit Lake 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).