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Built 2026-10-19 (19 October 2026)

Ridgedale Threshold Days by Year (CA004076790)

17 fixed thresholds counted per year at Ridgedale (CA004076790): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ridgedale Thresholds

  • Ridgedale: nights with a minimum temperature at or below 0 C (32 F) in 33 years, most in 1945 with 242.
  • Ridgedale: nights with a minimum temperature at or below -10 C (14 F) in 33 years, most in 1933 with 149.
  • Ridgedale: nights with a minimum temperature at or below -20 C (-4 F) in 33 years, most in 1955 with 98.
  • Ridgedale: nights with a minimum temperature at or below -30 C (-22 F) in 33 years, most in 1936 with 52.
  • 17 fixed thresholds have at least one qualifying day at Ridgedale.
32 years with a qualifying day
Days at or above 30 C (86 F) per year at Ridgedale Days per year at Ridgedale with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 36 in 1961. 0102030401931: 151932: 11933: 141934: 121935: 111936: 281937: 231938: 151939: 111940: 251941: 311942: 91943: 131944: 91945: 91946: 191947: 271948: 181950: 141951: 41952: 21954: 11955: 151956: 41957: 31959: 71960: 131961: 361962: 111963: 91964: 71965: 419311935193919431947195219571962
Days per year at Ridgedale with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 36 in 1961.
Days at or above 30 C (86 F) per year at Ridgedale
YearDaysDecade average
19311514.4
1932114.4
19331414.4
19341214.4
19351114.4
19362814.4
19372314.4
19381514.4
19391114.4
19402517.8
19413117.8
1942917.8
19431317.8
1944917.8
1945917.8
19461917.8
19472717.8
19481817.8
1950146.3
195146.3
195226.3
195416.3
1955156.3
195646.3
195736.3
195976.3
19601313.3
19613613.3
19621113.3
1963913.3
1964713.3
1965413.3
First to last qualifying date each year at Ridgedale For each year, a bar from the first to the last day at Ridgedale meeting 30 C (86 F). 1931: 13 May 1931 to 6 September 19311932: 19 August 1932 to 19 August 19321933: 4 June 1933 to 20 August 19331934: 25 May 1934 to 7 September 19341935: 28 June 1935 to 23 August 19351936: 26 May 1936 to 12 August 19361937: 14 June 1937 to 20 September 19371938: 27 May 1938 to 21 September 19381939: 28 April 1939 to 20 August 19391940: 11 May 1940 to 18 September 19401941: 24 May 1941 to 13 August 19411942: 7 June 1942 to 11 August 19421943: 21 May 1943 to 5 October 19431944: 27 May 1944 to 6 August 19441945: 21 June 1945 to 18 August 19451946: 25 May 1946 to 15 September 19461947: 19 June 1947 to 12 September 19471948: 21 May 1948 to 22 September 19481950: 26 May 1950 to 24 September 19501951: 23 May 1951 to 15 June 19511952: 4 July 1952 to 23 August 19521954: 20 July 1954 to 20 July 19541955: 19 May 1955 to 2 September 19551956: 1 June 1956 to 11 June 19561957: 6 May 1957 to 29 July 19571959: 16 May 1959 to 7 August 19591960: 12 May 1960 to 4 September 19601961: 19 May 1961 to 31 August 19611962: 10 June 1962 to 21 August 19621963: 24 May 1963 to 20 August 19631964: 20 May 1964 to 22 July 19641965: 10 June 1965 to 12 August 196519311935193919431947195219571962JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ridgedale meeting 30 C (86 F).
First to last qualifying date each year at Ridgedale
YearFirst dateLast date
19311931-05-131931-09-06
19321932-08-191932-08-19
19331933-06-041933-08-20
19341934-05-251934-09-07
19351935-06-281935-08-23
19361936-05-261936-08-12
19371937-06-141937-09-20
19381938-05-271938-09-21
19391939-04-281939-08-20
19401940-05-111940-09-18
19411941-05-241941-08-13
19421942-06-071942-08-11
19431943-05-211943-10-05
19441944-05-271944-08-06
19451945-06-211945-08-18
19461946-05-251946-09-15
19471947-06-191947-09-12
19481948-05-211948-09-22
19501950-05-261950-09-24
19511951-05-231951-06-15
19521952-07-041952-08-23
19541954-07-201954-07-20
19551955-05-191955-09-02
19561956-06-011956-06-11
19571957-05-061957-07-29
19591959-05-161959-08-07
19601960-05-121960-09-04
19611961-05-191961-08-31
19621962-06-101962-08-21
19631963-05-241963-08-20
19641964-05-201964-07-22
19651965-06-101965-08-12

Every Fixed Threshold

Fixed thresholds at Ridgedale
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days323619614
35 C (95 F): Days17919471
40 C (104 F): Days1119411
90 F (32.2 C): Days312219611
100 F (37.8 C): Days3219412
0 C (32 F): Ice days (max321421957138
0 C (32 F): Frost days (min332421945222
-10 C (14 F): Days with min331491933135
-20 C (-4 F): Days with min3398195584
-30 C (-22 F): Days with min3352193640
-40 C (-40 F): Days with min221319504
20 C (68 F): Tropical nights (min5119371
10 mm (0.39 in): Days with 10 mm or more rain1921195415
25 mm (0.98 in): Days with 25 mm or more rain15619541
50 mm (1.97 in): Days with 50 mm or more rain2119441
10 cm (3.9 in): Days with 10 cm or more snowfall26719564
25 cm (9.8 in): Days with 25 cm or more snowfall6119311

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1931.

Download the Data

  • Data for Ridgedale 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).