Built 2026-10-19 (19 October 2026)

Clifton Threshold Days by Year (CA008200900)

14 fixed thresholds counted per year at Clifton (CA008200900): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Clifton Thresholds

  • Clifton: days with 10 cm (3.9 in) or more of snowfall in 27 years, most in 1956 with 15.
  • Clifton: days with 10 mm (0.39 in) or more of precipitation in 26 years, most in 1951 with 55.
  • Clifton: days with 25 mm (0.98 in) or more of precipitation in 26 years, most in 1979 with 18.
  • Clifton: days with 50 mm (1.97 in) or more of precipitation in 16 years, most in 1971 with 3.
  • 14 fixed thresholds have at least one qualifying day at Clifton.
5 years with a qualifying day
Nights at or below 0 C (32 F) per year at Clifton Days per year at Clifton with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 183 in 1974. 0501001502001974: 1831975: 1801976: 1511979: 1361981: 14219741975197619791981
Days per year at Clifton with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 183 in 1974.
Nights at or below 0 C (32 F) per year at Clifton
YearDaysDecade average
1974183162.5
1975180162.5
1976151162.5
1979136162.5
1981142142
First to last qualifying date each year at Clifton For each year, a bar from the first to the last day at Clifton meeting 0 C (32 F). 1974: 1 January 1974 to 30 December 19741975: 2 January 1975 to 30 December 19751976: 3 January 1976 to 31 December 19761979: 1 January 1979 to 31 December 19791981: 5 January 1981 to 31 December 198119741975197619791981JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Clifton meeting 0 C (32 F).
First to last qualifying date each year at Clifton
YearFirst dateLast date
19741974-01-011974-12-30
19751975-01-021975-12-30
19761976-01-031976-12-31
19791979-01-011979-12-31
19811981-01-051981-12-31

Every Fixed Threshold

Fixed thresholds at Clifton
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days1319753
0 C (32 F): Ice days (max359197449
0 C (32 F): Frost days (min51831974142
-10 C (14 F): Days with min561197432
-20 C (-4 F): Days with min51419756
-30 C (-22 F): Days with min10n/a1
20 C (68 F): Tropical nights (min2319793
10 mm (0.39 in): Days with 10 mm or more rain2655195146
25 mm (0.98 in): Days with 25 mm or more rain2618197913
50 mm (1.97 in): Days with 50 mm or more rain16319711
100 mm (3.94 in): Days with 100 mm or more rain1119711
10 cm (3.9 in): Days with 10 cm or more snowfall2715195610
25 cm (9.8 in): Days with 25 cm or more snowfall13219561
50 cm (19.7 in): Days with 50 cm or more snowfall1119701

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1975.

Download the Data

  • Data for Clifton 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).