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

Silverton Threshold Days by Year (USC00457657)

10 fixed thresholds counted per year at Silverton (USC00457657): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Silverton Thresholds

  • Silverton: days with a maximum temperature at or above 30 C (86 F) in 3 years, most in 1926 with 14.
  • Silverton: days with a maximum temperature at or above 90 F (32.2 C) in 3 years, most in 1926 with 7.
  • Silverton: nights with a minimum temperature at or below 0 C (32 F) in 3 years, most in 1924 with 125.
  • Silverton: nights with a minimum temperature at or below -10 C (14 F) in 3 years, most in 1924 with 10.
  • 10 fixed thresholds have at least one qualifying day at Silverton.
3 years with a qualifying day
Days at or above 30 C (86 F) per year at Silverton Days per year at Silverton with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 14 in 1926. 0510151923: 81924: 81926: 14192319241926
Days per year at Silverton with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 14 in 1926.
Days at or above 30 C (86 F) per year at Silverton
YearDaysDecade average
1923810
1924810
19261410
First to last qualifying date each year at Silverton For each year, a bar from the first to the last day at Silverton meeting 30 C (86 F). 1923: 13 July 1923 to 11 September 19231924: 12 May 1924 to 12 September 19241926: 28 April 1926 to 24 August 1926192319241926JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Silverton meeting 30 C (86 F).
First to last qualifying date each year at Silverton
YearFirst dateLast date
19231923-07-131923-09-11
19241924-05-121924-09-12
19261926-04-281926-08-24

Every Fixed Threshold

Fixed thresholds at Silverton
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days314192614
35 C (95 F): Days1219262
90 F (32.2 C): Days3719267
0 C (32 F): Ice days (max214192414
0 C (32 F): Frost days (min31251924109
-10 C (14 F): Days with min31019242
10 mm (0.39 in): Days with 10 mm or more rain267192467
25 mm (0.98 in): Days with 25 mm or more rain234192434
50 mm (1.97 in): Days with 50 mm or more rain218192418
100 mm (3.94 in): Days with 100 mm or more rain1219242

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1923.

Download the Data

  • Data for Silverton 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).