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Built 2026-10-15 (15 October 2026)

Fort McPherson Threshold Days by Year

14 fixed thresholds counted per year at Fort McPherson (CA002201600): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Fort McPherson Thresholds

  • Fort McPherson: nights with a minimum temperature at or below 0 C (32 F) in 41 years, most in 1897 with 277.
  • Fort McPherson: nights with a minimum temperature at or below -10 C (14 F) in 41 years, most in 1974 with 219.
  • Fort McPherson: nights with a minimum temperature at or below -20 C (-4 F) in 41 years, most in 1897 with 176.
  • Fort McPherson: nights with a minimum temperature at or below -30 C (-22 F) in 41 years, most in 1896 with 114.
  • 14 fixed thresholds have at least one qualifying day at Fort McPherson.
20 years with a qualifying day
Days at or above 30 C (86 F) per year at Fort McPherson Days per year at Fort McPherson with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 4 in 1924. 012341915: 21924: 41942: 21943: 11946: 21947: 41949: 21952: 11953: 11954: 31956: 11957: 21960: 11962: 11963: 21964: 11966: 21967: 31968: 11969: 11915194219461949195319561960196319661968
Days per year at Fort McPherson with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 4 in 1924.
Days at or above 30 C (86 F) per year at Fort McPherson
YearDaysDecade average
191522
192444
194222.2
194312.2
194622.2
194742.2
194922.2
195211.6
195311.6
195431.6
195611.6
195721.6
196011.5
196211.5
196321.5
196411.5
196621.5
196731.5
196811.5
196911.5
First to last qualifying date each year at Fort McPherson For each year, a bar from the first to the last day at Fort McPherson meeting 30 C (86 F). 1915: 12 July 1915 to 13 July 19151924: 14 July 1924 to 10 August 19241942: 4 July 1942 to 13 July 19421943: 26 June 1943 to 26 June 19431946: 13 July 1946 to 15 July 19461947: 16 July 1947 to 24 July 19471949: 9 July 1949 to 10 July 19491952: 13 July 1952 to 13 July 19521953: 1 August 1953 to 1 August 19531954: 11 August 1954 to 13 August 19541956: 11 July 1956 to 11 July 19561957: 10 August 1957 to 15 August 19571960: 14 July 1960 to 14 July 19601962: 21 July 1962 to 21 July 19621963: 15 August 1963 to 25 August 19631964: 9 July 1964 to 9 July 19641966: 2 July 1966 to 12 July 19661967: 13 July 1967 to 15 July 19671968: 10 August 1968 to 10 August 19681969: 13 June 1969 to 13 June 19691915194319491954196019641968JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Fort McPherson meeting 30 C (86 F).
First to last qualifying date each year at Fort McPherson
YearFirst dateLast date
19151915-07-121915-07-13
19241924-07-141924-08-10
19421942-07-041942-07-13
19431943-06-261943-06-26
19461946-07-131946-07-15
19471947-07-161947-07-24
19491949-07-091949-07-10
19521952-07-131952-07-13
19531953-08-011953-08-01
19541954-08-111954-08-13
19561956-07-111956-07-11
19571957-08-101957-08-15
19601960-07-141960-07-14
19621962-07-211962-07-21
19631963-08-151963-08-25
19641964-07-091964-07-09
19661966-07-021966-07-12
19671967-07-131967-07-15
19681968-08-101968-08-10
19691969-06-131969-06-13

Every Fixed Threshold

Fixed thresholds at Fort McPherson
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days20419241
90 F (32.2 C): Days4119151
0 C (32 F): Ice days (max362251897215
0 C (32 F): Frost days (min412771897264
-10 C (14 F): Days with min412191974219
-20 C (-4 F): Days with min411761897173
-30 C (-22 F): Days with min411141896100
-40 C (-40 F): Days with min4148189627
20 C (68 F): Tropical nights (min4119241
10 mm (0.39 in): Days with 10 mm or more rain311319565
25 mm (0.98 in): Days with 25 mm or more rain11219411
50 mm (1.97 in): Days with 50 mm or more rain2119151
10 cm (3.9 in): Days with 10 cm or more snowfall31919692
25 cm (9.8 in): Days with 25 cm or more snowfall3119412

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1915.

Download the Data

  • Data for Fort McPherson 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-14).