Built 2026-10-19 (19 October 2026)

Algonquin Park Threshold Days by Year (CA006080189)

17 fixed thresholds counted per year at Algonquin Park (CA006080189): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Algonquin Park Thresholds

  • Algonquin Park: days with a maximum temperature at or below 0 C (32 F) in 41 years, most in 1926 with 125.
  • Algonquin Park: nights with a minimum temperature at or below 0 C (32 F) in 40 years, most in 1925 with 214.
  • Algonquin Park: nights with a minimum temperature at or below -10 C (14 F) in 40 years, most in 1939 with 109.
  • Algonquin Park: nights with a minimum temperature at or below -20 C (-4 F) in 40 years, most in 1940 with 64.
  • 17 fixed thresholds have at least one qualifying day at Algonquin Park.
38 years with a qualifying day
Days at or above 30 C (86 F) per year at Algonquin Park Days per year at Algonquin Park with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 25 in 1919. 01020301918: 141919: 251920: 11921: 151922: 11923: 41924: 11925: 101926: 11927: 51928: 51929: 61930: 41931: 191932: 11933: 121934: 81935: 161936: 91937: 191938: 81939: 81940: 41941: 131942: 51943: 61944: 191945: 21946: 71947: 131948: 81952: 81953: 101955: 221956: 31957: 41958: 11959: 61918192219261930193419381942194619531958
Days per year at Algonquin Park with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 25 in 1919.
Days at or above 30 C (86 F) per year at Algonquin Park
YearDaysDecade average
19181419.5
19192519.5
192014.9
1921154.9
192214.9
192344.9
192414.9
1925104.9
192614.9
192754.9
192854.9
192964.9
1930410.4
19311910.4
1932110.4
19331210.4
1934810.4
19351610.4
1936910.4
19371910.4
1938810.4
1939810.4
194048.6
1941138.6
194258.6
194368.6
1944198.6
194528.6
194678.6
1947138.6
194888.6
195287.7
1953107.7
1955227.7
195637.7
195747.7
195817.7
195967.7
First to last qualifying date each year at Algonquin Park For each year, a bar from the first to the last day at Algonquin Park meeting 30 C (86 F). 1918: 14 July 1918 to 13 August 19181919: 28 May 1919 to 28 July 19191920: 7 August 1920 to 7 August 19201921: 22 June 1921 to 26 July 19211922: 24 June 1922 to 24 June 19221923: 19 June 1923 to 20 July 19231924: 31 August 1924 to 31 August 19241925: 5 June 1925 to 30 August 19251926: 21 July 1926 to 21 July 19261927: 29 June 1927 to 16 July 19271928: 8 July 1928 to 17 August 19281929: 19 June 1929 to 6 September 19291930: 5 June 1930 to 28 July 19301931: 28 May 1931 to 13 September 19311932: 31 August 1932 to 31 August 19321933: 8 June 1933 to 3 September 19331934: 3 June 1934 to 9 August 19341935: 4 July 1935 to 20 August 19351936: 7 July 1936 to 15 September 19361937: 31 May 1937 to 1 September 19371938: 20 June 1938 to 16 August 19381939: 4 July 1939 to 15 September 19391940: 22 July 1940 to 25 July 19401941: 21 June 1941 to 27 July 19411942: 13 July 1942 to 22 August 19421943: 24 June 1943 to 12 July 19431944: 24 May 1944 to 15 August 19441945: 29 June 1945 to 7 September 19451946: 27 June 1946 to 9 August 19461947: 29 June 1947 to 9 September 19471948: 10 July 1948 to 29 August 19481952: 6 July 1952 to 13 September 19521953: 19 June 1953 to 4 September 19531955: 6 June 1955 to 18 September 19551956: 12 June 1956 to 14 June 19561957: 16 June 1957 to 19 July 19571958: 6 August 1958 to 6 August 19581959: 11 June 1959 to 9 September 195919181923192819331938194319481957JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Algonquin Park meeting 30 C (86 F).
First to last qualifying date each year at Algonquin Park
YearFirst dateLast date
19181918-07-141918-08-13
19191919-05-281919-07-28
19201920-08-071920-08-07
19211921-06-221921-07-26
19221922-06-241922-06-24
19231923-06-191923-07-20
19241924-08-311924-08-31
19251925-06-051925-08-30
19261926-07-211926-07-21
19271927-06-291927-07-16
19281928-07-081928-08-17
19291929-06-191929-09-06
19301930-06-051930-07-28
19311931-05-281931-09-13
19321932-08-311932-08-31
19331933-06-081933-09-03
19341934-06-031934-08-09
19351935-07-041935-08-20
19361936-07-071936-09-15
19371937-05-311937-09-01
19381938-06-201938-08-16
19391939-07-041939-09-15
19401940-07-221940-07-25
19411941-06-211941-07-27
19421942-07-131942-08-22
19431943-06-241943-07-12
19441944-05-241944-08-15
19451945-06-291945-09-07
19461946-06-271946-08-09
19471947-06-291947-09-09
19481948-07-101948-08-29
19521952-07-061952-09-13
19531953-06-191953-09-04
19551955-06-061955-09-18
19561956-06-121956-06-14
19571957-06-161957-07-19
19581958-08-061958-08-06
19591959-06-111959-09-09

Every Fixed Threshold

Fixed thresholds at Algonquin Park
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days382519196
35 C (95 F): Days4419361
90 F (32.2 C): Days211219311
100 F (37.8 C): Days1119311
0 C (32 F): Ice days (max411251926111
0 C (32 F): Frost days (min402141925198
-10 C (14 F): Days with min401091939102
-20 C (-4 F): Days with min4064194047
-30 C (-22 F): Days with min4023193414
-40 C (-40 F): Days with min12419341
20 C (68 F): Tropical nights (min21519315
10 mm (0.39 in): Days with 10 mm or more rain4042195942
25 mm (0.98 in): Days with 25 mm or more rain37819567
50 mm (1.97 in): Days with 50 mm or more rain9119201
100 mm (3.94 in): Days with 100 mm or more rain1119201
10 cm (3.9 in): Days with 10 cm or more snowfall4016195916
25 cm (9.8 in): Days with 25 cm or more snowfall11219311

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1918.

Download the Data

  • Data for Algonquin Park 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).