Built 2026-10-19 (19 October 2026)

Red Deer Threshold Days by Year (CA003025440)

15 fixed thresholds counted per year at Red Deer (CA003025440): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Red Deer Thresholds

  • Red Deer: nights with a minimum temperature at or below 0 C (32 F) in 41 years, most in 1920 with 238.
  • Red Deer: nights with a minimum temperature at or below -10 C (14 F) in 41 years, most in 1935 with 142.
  • Red Deer: nights with a minimum temperature at or below -20 C (-4 F) in 41 years, most in 1927 with 69.
  • Red Deer: nights with a minimum temperature at or below -30 C (-22 F) in 41 years, most in 1916 with 32.
  • 15 fixed thresholds have at least one qualifying day at Red Deer.
39 years with a qualifying day
Days at or above 30 C (86 F) per year at Red Deer Days per year at Red Deer with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 22 in 1936. 01020301909: 31914: 41915: 11917: 21918: 61919: 81920: 111921: 41922: 51924: 101925: 91926: 111927: 31928: 91934: 191935: 71936: 221937: 91938: 121951: 21952: 11953: 21954: 21955: 71956: 51957: 21958: 51959: 41961: 161962: 11963: 11964: 51965: 71966: 31967: 41969: 61970: 111972: 21973: 51909191819221927193619521956196119651970
Days per year at Red Deer with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 22 in 1936.
Days at or above 30 C (86 F) per year at Red Deer
YearDaysDecade average
190933
191444.2
191514.2
191724.2
191864.2
191984.2
1920117.8
192147.8
192257.8
1924107.8
192597.8
1926117.8
192737.8
192897.8
19341913.8
1935713.8
19362213.8
1937913.8
19381213.8
195123.3
195213.3
195323.3
195423.3
195573.3
195653.3
195723.3
195853.3
195943.3
1961165.4
196215.4
196315.4
196455.4
196575.4
196635.4
196745.4
196965.4
1970116
197226
197356
First to last qualifying date each year at Red Deer For each year, a bar from the first to the last day at Red Deer meeting 30 C (86 F). 1909: 13 August 1909 to 6 September 19091914: 2 June 1914 to 19 July 19141915: 29 August 1915 to 29 August 19151917: 18 July 1917 to 22 July 19171918: 11 June 1918 to 1 August 19181919: 19 May 1919 to 18 August 19191920: 15 July 1920 to 22 August 19201921: 19 July 1921 to 30 August 19211922: 3 June 1922 to 2 August 19221924: 14 May 1924 to 25 July 19241925: 20 May 1925 to 2 August 19251926: 26 June 1926 to 24 August 19261927: 23 July 1927 to 10 August 19271928: 21 May 1928 to 10 August 19281934: 14 May 1934 to 6 September 19341935: 12 July 1935 to 12 August 19351936: 26 May 1936 to 29 August 19361937: 2 June 1937 to 4 August 19371938: 19 June 1938 to 17 September 19381951: 14 June 1951 to 3 August 19511952: 25 September 1952 to 25 September 19521953: 12 July 1953 to 19 August 19531954: 5 July 1954 to 19 July 19541955: 14 July 1955 to 2 September 19551956: 31 May 1956 to 20 July 19561957: 13 July 1957 to 22 July 19571958: 18 July 1958 to 25 August 19581959: 12 July 1959 to 24 July 19591961: 2 June 1961 to 22 August 19611962: 16 August 1962 to 16 August 19621963: 7 July 1963 to 7 July 19631964: 8 July 1964 to 18 August 19641965: 11 June 1965 to 9 August 19651966: 26 May 1966 to 5 September 19661967: 11 August 1967 to 20 August 19671969: 5 June 1969 to 24 August 19691970: 2 June 1970 to 23 August 19701972: 30 May 1972 to 31 May 19721973: 22 June 1973 to 13 August 197319091919192519351952195719631969JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Red Deer meeting 30 C (86 F).
First to last qualifying date each year at Red Deer
YearFirst dateLast date
19091909-08-131909-09-06
19141914-06-021914-07-19
19151915-08-291915-08-29
19171917-07-181917-07-22
19181918-06-111918-08-01
19191919-05-191919-08-18
19201920-07-151920-08-22
19211921-07-191921-08-30
19221922-06-031922-08-02
19241924-05-141924-07-25
19251925-05-201925-08-02
19261926-06-261926-08-24
19271927-07-231927-08-10
19281928-05-211928-08-10
19341934-05-141934-09-06
19351935-07-121935-08-12
19361936-05-261936-08-29
19371937-06-021937-08-04
19381938-06-191938-09-17
19511951-06-141951-08-03
19521952-09-251952-09-25
19531953-07-121953-08-19
19541954-07-051954-07-19
19551955-07-141955-09-02
19561956-05-311956-07-20
19571957-07-131957-07-22
19581958-07-181958-08-25
19591959-07-121959-07-24
19611961-06-021961-08-22
19621962-08-161962-08-16
19631963-07-071963-07-07
19641964-07-081964-08-18
19651965-06-111965-08-09
19661966-05-261966-09-05
19671967-08-111967-08-20
19691969-06-051969-08-24
19701970-06-021970-08-23
19721972-05-301972-05-31
19731973-06-221973-08-13

Every Fixed Threshold

Fixed thresholds at Red Deer
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days392219365
35 C (95 F): Days5219241
90 F (32.2 C): Days22819361
0 C (32 F): Ice days (max40127195193
0 C (32 F): Frost days (min412381920206
-10 C (14 F): Days with min41142193598
-20 C (-4 F): Days with min4169192730
-30 C (-22 F): Days with min413219162
-40 C (-40 F): Days with min20919162
10 mm (0.39 in): Days with 10 mm or more rain4026193513
25 mm (0.98 in): Days with 25 mm or more rain33919353
50 mm (1.97 in): Days with 50 mm or more rain13219352
100 mm (3.94 in): Days with 100 mm or more rain2119371
10 cm (3.9 in): Days with 10 cm or more snowfall34919243
25 cm (9.8 in): Days with 25 cm or more snowfall3219272

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1909.

Download the Data

  • Data for Red Deer 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).