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

Pennfield Threshold Days by Year (CA008103845)

14 fixed thresholds counted per year at Pennfield (CA008103845): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Pennfield Thresholds

  • Pennfield: days with 10 mm (0.39 in) or more of precipitation in 20 years, most in 1979 with 60.
  • Pennfield: days with 25 mm (0.98 in) or more of precipitation in 20 years, most in 1979 with 23.
  • Pennfield: days with 10 cm (3.9 in) or more of snowfall in 20 years, most in 1981 with 13.
  • Pennfield: days with 50 mm (1.97 in) or more of precipitation in 18 years, most in 1969 with 5.
  • 14 fixed thresholds have at least one qualifying day at Pennfield.
5 years with a qualifying day
Days at or above 30 C (86 F) per year at Pennfield Days per year at Pennfield with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 5 in 1977. 02461977: 51979: 11980: 21981: 11983: 219771979198019811983
Days per year at Pennfield with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 5 in 1977.
Days at or above 30 C (86 F) per year at Pennfield
YearDaysDecade average
197753
197913
198021.7
198111.7
198321.7
First to last qualifying date each year at Pennfield For each year, a bar from the first to the last day at Pennfield meeting 30 C (86 F). 1977: 17 May 1977 to 21 July 19771979: 13 July 1979 to 13 July 19791980: 9 August 1980 to 24 August 19801981: 8 July 1981 to 8 July 19811983: 22 June 1983 to 23 June 198319771979198019811983JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Pennfield meeting 30 C (86 F).
First to last qualifying date each year at Pennfield
YearFirst dateLast date
19771977-05-171977-07-21
19791979-07-131979-07-13
19801980-08-091980-08-24
19811981-07-081981-07-08
19831983-06-221983-06-23

Every Fixed Threshold

Fixed thresholds at Pennfield
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days5519772
35 C (95 F): Days1119771
90 F (32.2 C): Days2319771
0 C (32 F): Ice days (max661198046
0 C (32 F): Frost days (min61821977154
-10 C (14 F): Days with min667198047
-20 C (-4 F): Days with min62019827
-30 C (-22 F): Days with min3119801
10 mm (0.39 in): Days with 10 mm or more rain2060197953
25 mm (0.98 in): Days with 25 mm or more rain2023197916
50 mm (1.97 in): Days with 50 mm or more rain18519691
100 mm (3.94 in): Days with 100 mm or more rain1219812
10 cm (3.9 in): Days with 10 cm or more snowfall201319815
25 cm (9.8 in): Days with 25 cm or more snowfall8219622

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1977.

Download the Data

  • Data for Pennfield 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).