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

Clear 4 N Threshold Days by Year

14 fixed thresholds counted per year at Clear 4 N (USC00502005): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Clear 4 N Thresholds

  • Clear 4 N: days with 10 mm (0.39 in) or more of precipitation in 15 years, most in 1967 with 15.
  • Clear 4 N: days with 10 cm (3.9 in) or more of snowfall in 15 years, most in 1966 with 6.
  • Clear 4 N: days with 25 mm (0.98 in) or more of precipitation in 6 years, most in 1967 with 6.
  • Clear 4 N: days with a maximum temperature at or below 0 C (32 F) in 4 years, most in 1973 with 159.
  • 14 fixed thresholds have at least one qualifying day at Clear 4 N.
4 years with a qualifying day
Nights at or below 0 C (32 F) per year at Clear 4 N Days per year at Clear 4 N with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 231 in 1968. 01002003001966: 2301967: 2171968: 2311973: 2231966196719681973
Days per year at Clear 4 N with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 231 in 1968.
Nights at or below 0 C (32 F) per year at Clear 4 N
YearDaysDecade average
1966230226
1967217226
1968231226
1973223223
First to last qualifying date each year at Clear 4 N For each year, a bar from the first to the last day at Clear 4 N meeting 0 C (32 F). 1966: 1 January 1966 to 31 December 19661967: 1 January 1967 to 31 December 19671968: 1 January 1968 to 31 December 19681973: 1 January 1973 to 31 December 19731966196719681973JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Clear 4 N meeting 0 C (32 F).
First to last qualifying date each year at Clear 4 N
YearFirst dateLast date
19661966-01-011966-12-31
19671967-01-011967-12-31
19681968-01-011968-12-31
19731973-01-011973-12-31

Every Fixed Threshold

Fixed thresholds at Clear 4 N
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2419673
90 F (32.2 C): Days1119681
0 C (32 F): Ice days (max41591973159
0 C (32 F): Frost days (min42311968223
-10 C (14 F): Days with min41771966157
-20 C (-4 F): Days with min41331966111
-30 C (-22 F): Days with min481196644
-40 C (-40 F): Days with min431196613
10 mm (0.39 in): Days with 10 mm or more rain1515196715
25 mm (0.98 in): Days with 25 mm or more rain6619674
50 mm (1.97 in): Days with 50 mm or more rain1119671
100 mm (3.94 in): Days with 100 mm or more rain1119671
10 cm (3.9 in): Days with 10 cm or more snowfall156196612
25 cm (9.8 in): Days with 25 cm or more snowfall1119661

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1967.

Download the Data

  • Data for Clear 4 N 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).