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

Shelby Threshold Days by Year (USC00227983)

9 fixed thresholds counted per year at Shelby (USC00227983): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Shelby Thresholds

  • Shelby: days with a maximum temperature at or above 30 C (86 F) in 1 years, most in 1905 with 100.
  • Shelby: days with a maximum temperature at or above 35 C (95 F) in 1 years, most in 1905 with 30.
  • Shelby: days with a maximum temperature at or above 90 F (32.2 C) in 1 years, most in 1905 with 74.
  • Shelby: days with a maximum temperature at or above 100 F (37.8 C) in 1 years, most in 1905 with 4.
  • 9 fixed thresholds have at least one qualifying day at Shelby.
1 years with a qualifying day
Days at or above 30 C (86 F) per year at Shelby Days per year at Shelby with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 100 in 1905. 02550751001905: 1001905
Days per year at Shelby with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 100 in 1905.
Days at or above 30 C (86 F) per year at Shelby
YearDaysDecade average
1905100100
First to last qualifying date each year at Shelby For each year, a bar from the first to the last day at Shelby meeting 30 C (86 F). 1905: 1 April 1905 to 17 October 19051905JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Shelby meeting 30 C (86 F).
First to last qualifying date each year at Shelby
YearFirst dateLast date
19051905-04-011905-10-17

Every Fixed Threshold

Fixed thresholds at Shelby
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days11001905100
35 C (95 F): Days130190530
90 F (32.2 C): Days174190574
100 F (37.8 C): Days1419054
0 C (32 F): Ice days (max1419054
10 mm (0.39 in): Days with 10 mm or more rain10n/a37
25 mm (0.98 in): Days with 25 mm or more rain10n/a18
50 mm (1.97 in): Days with 50 mm or more rain10n/a5
10 cm (3.9 in): Days with 10 cm or more snowfall10n/a1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1905.

Download the Data

  • Data for Shelby 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).