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

Parent Threshold Days by Year (CA007075800)

15 fixed thresholds counted per year at Parent (CA007075800): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Parent Thresholds

  • Parent: days with a maximum temperature at or below 0 C (32 F) in 18 years, most in 1976 with 138.
  • Parent: nights with a minimum temperature at or below 0 C (32 F) in 18 years, most in 1972 with 233.
  • Parent: nights with a minimum temperature at or below -10 C (14 F) in 18 years, most in 1972 with 138.
  • Parent: nights with a minimum temperature at or below -20 C (-4 F) in 18 years, most in 1976 with 88.
  • 15 fixed thresholds have at least one qualifying day at Parent.
12 years with a qualifying day
Days at or above 30 C (86 F) per year at Parent Days per year at Parent with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 15 in 1947. 0510151944: 111945: 51946: 31947: 151948: 41949: 121952: 71953: 81955: 111975: 81976: 41977: 5194419461948195219551976
Days per year at Parent with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 15 in 1947.
Days at or above 30 C (86 F) per year at Parent
YearDaysDecade average
1944118.3
194558.3
194638.3
1947158.3
194848.3
1949128.3
195278.7
195388.7
1955118.7
197585.7
197645.7
197755.7
First to last qualifying date each year at Parent For each year, a bar from the first to the last day at Parent meeting 30 C (86 F). 1944: 25 May 1944 to 3 August 19441945: 24 July 1945 to 7 September 19451946: 28 June 1946 to 30 June 19461947: 23 June 1947 to 24 August 19471948: 10 July 1948 to 27 August 19481949: 3 June 1949 to 8 August 19491952: 6 July 1952 to 28 August 19521953: 16 July 1953 to 4 September 19531955: 5 June 1955 to 19 August 19551975: 22 May 1975 to 2 August 19751976: 5 June 1976 to 21 August 19761977: 21 May 1977 to 20 July 1977194419461948195219551976JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Parent meeting 30 C (86 F).
First to last qualifying date each year at Parent
YearFirst dateLast date
19441944-05-251944-08-03
19451945-07-241945-09-07
19461946-06-281946-06-30
19471947-06-231947-08-24
19481948-07-101948-08-27
19491949-06-031949-08-08
19521952-07-061952-08-28
19531953-07-161953-09-04
19551955-06-051955-08-19
19751975-05-221975-08-02
19761976-06-051976-08-21
19771977-05-211977-07-20

Every Fixed Threshold

Fixed thresholds at Parent
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days121519475
35 C (95 F): Days1119751
90 F (32.2 C): Days9419443
0 C (32 F): Ice days (max181381976117
0 C (32 F): Frost days (min182331972211
-10 C (14 F): Days with min181381972111
-20 C (-4 F): Days with min1888197659
-30 C (-22 F): Days with min1841197616
-40 C (-40 F): Days with min171019483
20 C (68 F): Tropical nights (min8519471
10 mm (0.39 in): Days with 10 mm or more rain1848195434
25 mm (0.98 in): Days with 25 mm or more rain171219473
50 mm (1.97 in): Days with 50 mm or more rain6119461
10 cm (3.9 in): Days with 10 cm or more snowfall182119538
25 cm (9.8 in): Days with 25 cm or more snowfall12219442

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1944.

Download the Data

  • Data for Parent 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).