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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Porcupine Plain Threshold Days by Year (CA004086160)

15 fixed thresholds counted per year at Porcupine Plain (CA004086160): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Porcupine Plain Thresholds

  • Porcupine Plain: days with 10 mm (0.39 in) or more of precipitation in 21 years, most in 1973 with 20.
  • Porcupine Plain: days with 10 cm (3.9 in) or more of snowfall in 21 years, most in 1979 with 8.
  • Porcupine Plain: days with 25 mm (0.98 in) or more of precipitation in 19 years, most in 1973 with 4.
  • Porcupine Plain: nights with a minimum temperature at or below 0 C (32 F) in 18 years, most in 1979 with 216.
  • 15 fixed thresholds have at least one qualifying day at Porcupine Plain.
12 years with a qualifying day
Days at or above 30 C (86 F) per year at Porcupine Plain Days per year at Porcupine Plain with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 12 in 1980. 0510151963: 51969: 61973: 41974: 41975: 91976: 21977: 51978: 41979: 81980: 121981: 71983: 9196319731975197719791981
Days per year at Porcupine Plain with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 12 in 1980.
Days at or above 30 C (86 F) per year at Porcupine Plain
YearDaysDecade average
196355.5
196965.5
197345.1
197445.1
197595.1
197625.1
197755.1
197845.1
197985.1
1980129.3
198179.3
198399.3
First to last qualifying date each year at Porcupine Plain For each year, a bar from the first to the last day at Porcupine Plain meeting 30 C (86 F). 1963: 5 July 1963 to 10 August 19631969: 11 July 1969 to 13 September 19691973: 23 June 1973 to 16 August 19731974: 24 June 1974 to 19 July 19741975: 25 June 1975 to 29 July 19751976: 23 August 1976 to 6 September 19761977: 12 May 1977 to 22 July 19771978: 5 June 1978 to 10 August 19781979: 6 July 1979 to 16 September 19791980: 19 May 1980 to 7 September 19801981: 21 May 1981 to 9 September 19811983: 14 July 1983 to 1 September 1983196319731975197719791981JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Porcupine Plain meeting 30 C (86 F).
First to last qualifying date each year at Porcupine Plain
YearFirst dateLast date
19631963-07-051963-08-10
19691969-07-111969-09-13
19731973-06-231973-08-16
19741974-06-241974-07-19
19751975-06-251975-07-29
19761976-08-231976-09-06
19771977-05-121977-07-22
19781978-06-051978-08-10
19791979-07-061979-09-16
19801980-05-191980-09-07
19811981-05-211981-09-09
19831983-07-141983-09-01

Every Fixed Threshold

Fixed thresholds at Porcupine Plain
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days121219809
35 C (95 F): Days1119801
90 F (32.2 C): Days7319752
0 C (32 F): Ice days (max131381979126
0 C (32 F): Frost days (min182161979210
-10 C (14 F): Days with min181351979117
-20 C (-4 F): Days with min1885197861
-30 C (-22 F): Days with min1841197926
-40 C (-40 F): Days with min11519822
20 C (68 F): Tropical nights (min5119631
10 mm (0.39 in): Days with 10 mm or more rain2120197318
25 mm (0.98 in): Days with 25 mm or more rain19419732
50 mm (1.97 in): Days with 50 mm or more rain5219731
10 cm (3.9 in): Days with 10 cm or more snowfall21819794
25 cm (9.8 in): Days with 25 cm or more snowfall2119731

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1963.

Download the Data

  • Data for Porcupine Plain 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 (2026-10-17).