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

Potter Threshold Days by Year (USC00256880)

14 fixed thresholds counted per year at Potter (USC00256880): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Potter Thresholds

  • Potter: days with 10 mm (0.39 in) or more of precipitation in 69 years, most in 1929 with 22.
  • Potter: days with 25 mm (0.98 in) or more of precipitation in 61 years, most in 1933 with 7.
  • Potter: days with 10 cm (3.9 in) or more of snowfall in 49 years, most in 1959 with 9.
  • Potter: days with 50 mm (1.97 in) or more of precipitation in 19 years, most in 1999 with 3.
  • 14 fixed thresholds have at least one qualifying day at Potter.
7 years with a qualifying day
Days at or above 30 C (86 F) per year at Potter Days per year at Potter with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 76 in 2001. 0204060801997: 561998: 651999: 472000: 562001: 762002: 722003: 571997199819992000200120022003
Days per year at Potter with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 76 in 2001.
Days at or above 30 C (86 F) per year at Potter
YearDaysDecade average
19975656
19986556
19994756
20005665.3
20017665.3
20027265.3
20035765.3
First to last qualifying date each year at Potter For each year, a bar from the first to the last day at Potter meeting 30 C (86 F). 1997: 16 May 1997 to 2 October 19971998: 17 May 1998 to 28 September 19981999: 4 June 1999 to 6 September 19992000: 4 May 2000 to 18 September 20002001: 12 May 2001 to 27 September 20012002: 15 April 2002 to 7 September 20022003: 29 May 2003 to 23 October 20031997199819992000200120022003JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Potter meeting 30 C (86 F).
First to last qualifying date each year at Potter
YearFirst dateLast date
19971997-05-161997-10-02
19981998-05-171998-09-28
19991999-06-041999-09-06
20002000-05-042000-09-18
20012001-05-122001-09-27
20022002-04-152002-09-07
20032003-05-292003-10-23

Every Fixed Threshold

Fixed thresholds at Potter
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days776200157
35 C (95 F): Days720200215
90 F (32.2 C): Days753200236
100 F (37.8 C): Days4219972
0 C (32 F): Ice days (max734199725
0 C (32 F): Frost days (min72002002181
-10 C (14 F): Days with min768200260
-20 C (-4 F): Days with min61019985
20 C (68 F): Tropical nights (min1120001
10 mm (0.39 in): Days with 10 mm or more rain6922192912
25 mm (0.98 in): Days with 25 mm or more rain61719332
50 mm (1.97 in): Days with 50 mm or more rain19319993
10 cm (3.9 in): Days with 10 cm or more snowfall49919592
25 cm (9.8 in): Days with 25 cm or more snowfall13219591

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1997.

Download the Data

  • Data for Potter 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).