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Data as of 2026-10-14
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Built 2026-10-15 (15 October 2026)

Clearwater Threshold Days by Year

13 fixed thresholds counted per year at Clearwater (CA003011663): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Clearwater Thresholds

  • Clearwater: days with 10 mm (0.39 in) or more of precipitation in 18 years, most in 1965 with 28.
  • Clearwater: days with 10 cm (3.9 in) or more of snowfall in 18 years, most in 1967 with 11.
  • Clearwater: days with 25 mm (0.98 in) or more of precipitation in 17 years, most in 1972 with 9.
  • Clearwater: days with a maximum temperature at or below 0 C (32 F) in 16 years, most in 1972 with 88.
  • 13 fixed thresholds have at least one qualifying day at Clearwater.
10 years with a qualifying day
Days at or above 30 C (86 F) per year at Clearwater Days per year at Clearwater with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 5 in 1967. 02461967: 51968: 11969: 11970: 51974: 11975: 31978: 11979: 31981: 21983: 11967196819691970197419751978197919811983
Days per year at Clearwater with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 5 in 1967.
Days at or above 30 C (86 F) per year at Clearwater
YearDaysDecade average
196752.3
196812.3
196912.3
197052.6
197412.6
197532.6
197812.6
197932.6
198121.5
198311.5
First to last qualifying date each year at Clearwater For each year, a bar from the first to the last day at Clearwater meeting 30 C (86 F). 1967: 13 August 1967 to 27 September 19671968: 9 July 1968 to 9 July 19681969: 18 June 1969 to 18 June 19691970: 2 June 1970 to 6 August 19701974: 4 August 1974 to 4 August 19741975: 5 July 1975 to 27 July 19751978: 9 August 1978 to 9 August 19781979: 18 July 1979 to 21 July 19791981: 17 September 1981 to 18 September 19811983: 10 August 1983 to 10 August 198319671969197419781981JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Clearwater meeting 30 C (86 F).
First to last qualifying date each year at Clearwater
YearFirst dateLast date
19671967-08-131967-09-27
19681968-07-091968-07-09
19691969-06-181969-06-18
19701970-06-021970-08-06
19741974-08-041974-08-04
19751975-07-051975-07-27
19781978-08-091978-08-09
19791979-07-181979-07-21
19811981-09-171981-09-18
19831983-08-101983-08-10

Every Fixed Threshold

Fixed thresholds at Clearwater
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days10519671
90 F (32.2 C): Days1119671
0 C (32 F): Ice days (max1688197271
0 C (32 F): Frost days (min162541967251
-10 C (14 F): Days with min16129198285
-20 C (-4 F): Days with min1652197227
-30 C (-22 F): Days with min161919698
-40 C (-40 F): Days with min2319723
10 mm (0.39 in): Days with 10 mm or more rain182819657
25 mm (0.98 in): Days with 25 mm or more rain17919723
50 mm (1.97 in): Days with 50 mm or more rain7119651
10 cm (3.9 in): Days with 10 cm or more snowfall181119671
25 cm (9.8 in): Days with 25 cm or more snowfall2119721

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 Clearwater 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-14).