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

Nappan Cda Threshold Days by Year (CA008203700)

15 fixed thresholds counted per year at Nappan Cda (CA008203700): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Nappan Cda Thresholds

  • Nappan Cda: days with a maximum temperature at or below 0 C (32 F) in 70 years, most in 1926 with 99.
  • Nappan Cda: nights with a minimum temperature at or below 0 C (32 F) in 70 years, most in 1965 with 196.
  • Nappan Cda: nights with a minimum temperature at or below -10 C (14 F) in 70 years, most in 1939 with 85.
  • Nappan Cda: days with 10 mm (0.39 in) or more of precipitation in 70 years, most in 1979 with 60.
  • 15 fixed thresholds have at least one qualifying day at Nappan Cda.
33 years with a qualifying day
Days at or above 30 C (86 F) per year at Nappan Cda Days per year at Nappan Cda with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 1944. 024681920: 11921: 51926: 11928: 31930: 21931: 11933: 11935: 51937: 31939: 61940: 11941: 31942: 31943: 11944: 81945: 11947: 41948: 11949: 61952: 51955: 21956: 11959: 11960: 11961: 11963: 11967: 31968: 11970: 21975: 31976: 11977: 11978: 2192019301937194219471955196119701978
Days per year at Nappan Cda with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 1944.
Days at or above 30 C (86 F) per year at Nappan Cda
YearDaysDecade average
192012.5
192152.5
192612.5
192832.5
193023
193113
193313
193553
193733
193963
194013.1
194133.1
194233.1
194313.1
194483.1
194513.1
194743.1
194813.1
194963.1
195252.3
195522.3
195612.3
195912.3
196011.4
196111.4
196311.4
196731.4
196811.4
197021.8
197531.8
197611.8
197711.8
197821.8
First to last qualifying date each year at Nappan Cda For each year, a bar from the first to the last day at Nappan Cda meeting 30 C (86 F). 1920: 9 August 1920 to 9 August 19201921: 8 July 1921 to 28 July 19211926: 22 July 1926 to 22 July 19261928: 15 August 1928 to 17 August 19281930: 6 June 1930 to 27 June 19301931: 29 July 1931 to 29 July 19311933: 17 August 1933 to 17 August 19331935: 16 August 1935 to 20 August 19351937: 8 August 1937 to 30 August 19371939: 25 July 1939 to 25 August 19391940: 19 August 1940 to 19 August 19401941: 21 June 1941 to 2 July 19411942: 13 June 1942 to 2 September 19421943: 13 July 1943 to 13 July 19431944: 28 June 1944 to 16 August 19441945: 12 August 1945 to 12 August 19451947: 29 June 1947 to 14 August 19471948: 30 June 1948 to 30 June 19481949: 13 June 1949 to 7 August 19491952: 8 July 1952 to 24 July 19521955: 9 July 1955 to 22 August 19551956: 15 June 1956 to 15 June 19561959: 29 July 1959 to 29 July 19591960: 19 August 1960 to 19 August 19601961: 13 June 1961 to 13 June 19611963: 26 July 1963 to 26 July 19631967: 28 June 1967 to 18 August 19671968: 16 July 1968 to 16 July 19681970: 24 July 1970 to 25 July 19701975: 19 July 1975 to 11 August 19751976: 22 August 1976 to 22 August 19761977: 29 August 1977 to 29 August 19771978: 18 August 1978 to 20 August 19781920193119401945195519631976JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Nappan Cda meeting 30 C (86 F).
First to last qualifying date each year at Nappan Cda
YearFirst dateLast date
19201920-08-091920-08-09
19211921-07-081921-07-28
19261926-07-221926-07-22
19281928-08-151928-08-17
19301930-06-061930-06-27
19311931-07-291931-07-29
19331933-08-171933-08-17
19351935-08-161935-08-20
19371937-08-081937-08-30
19391939-07-251939-08-25
19401940-08-191940-08-19
19411941-06-211941-07-02
19421942-06-131942-09-02
19431943-07-131943-07-13
19441944-06-281944-08-16
19451945-08-121945-08-12
19471947-06-291947-08-14
19481948-06-301948-06-30
19491949-06-131949-08-07
19521952-07-081952-07-24
19551955-07-091955-08-22
19561956-06-151956-06-15
19591959-07-291959-07-29
19601960-08-191960-08-19
19611961-06-131961-06-13
19631963-07-261963-07-26
19671967-06-281967-08-18
19681968-07-161968-07-16
19701970-07-241970-07-25
19751975-07-191975-08-11
19761976-08-221976-08-22
19771977-08-291977-08-29
19781978-08-181978-08-20

Every Fixed Threshold

Fixed thresholds at Nappan Cda
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days33819442
90 F (32.2 C): Days6519442
0 C (32 F): Ice days (max7099192655
0 C (32 F): Frost days (min701961965143
-10 C (14 F): Days with min7085193950
-20 C (-4 F): Days with min693219359
-30 C (-22 F): Days with min22519571
20 C (68 F): Tropical nights (min15519471
10 mm (0.39 in): Days with 10 mm or more rain7060197940
25 mm (0.98 in): Days with 25 mm or more rain691519617
50 mm (1.97 in): Days with 50 mm or more rain35319401
100 mm (3.94 in): Days with 100 mm or more rain4119421
10 cm (3.9 in): Days with 10 cm or more snowfall701819725
25 cm (9.8 in): Days with 25 cm or more snowfall40419632
50 cm (19.7 in): Days with 50 cm or more snowfall2119611

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1920.

Download the Data

  • Data for Nappan Cda 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).