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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Copper Ctr Threshold Days by Year (USC00502156)

12 fixed thresholds counted per year at Copper Ctr (USC00502156): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Copper Ctr Thresholds

  • Copper Ctr: days with a maximum temperature at or below 0 C (32 F) in 8 years, most in 1907 with 149.
  • Copper Ctr: nights with a minimum temperature at or below 0 C (32 F) in 8 years, most in 1908 with 268.
  • Copper Ctr: nights with a minimum temperature at or below -10 C (14 F) in 8 years, most in 1906 with 163.
  • Copper Ctr: nights with a minimum temperature at or below -20 C (-4 F) in 8 years, most in 1907 with 127.
  • 12 fixed thresholds have at least one qualifying day at Copper Ctr.
5 years with a qualifying day
Days at or above 30 C (86 F) per year at Copper Ctr Days per year at Copper Ctr with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 1903. 024681903: 81904: 11905: 21907: 31911: 119031904190519071911
Days per year at Copper Ctr with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 1903.
Days at or above 30 C (86 F) per year at Copper Ctr
YearDaysDecade average
190383.5
190413.5
190523.5
190733.5
191111
First to last qualifying date each year at Copper Ctr For each year, a bar from the first to the last day at Copper Ctr meeting 30 C (86 F). 1903: 17 June 1903 to 13 August 19031904: 8 August 1904 to 8 August 19041905: 24 June 1905 to 18 July 19051907: 1 July 1907 to 5 August 19071911: 6 July 1911 to 6 July 191119031904190519071911JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Copper Ctr meeting 30 C (86 F).
First to last qualifying date each year at Copper Ctr
YearFirst dateLast date
19031903-06-171903-08-13
19041904-08-081904-08-08
19051905-06-241905-07-18
19071907-07-011907-08-05
19111911-07-061911-07-06

Every Fixed Threshold

Fixed thresholds at Copper Ctr
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days5819031
35 C (95 F): Days1119031
90 F (32.2 C): Days1319033
0 C (32 F): Ice days (max81491907130
0 C (32 F): Frost days (min82681908259
-10 C (14 F): Days with min81631906152
-20 C (-4 F): Days with min81271907100
-30 C (-22 F): Days with min865190451
-40 C (-40 F): Days with min82519109
10 mm (0.39 in): Days with 10 mm or more rain6719057
25 mm (0.98 in): Days with 25 mm or more rain2119051
10 cm (3.9 in): Days with 10 cm or more snowfall40n/a2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1903.

Download the Data

  • Data for Copper Ctr 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).