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

Davison AAF Threshold Days by Year (USW00093728)

16 fixed thresholds counted per year at Davison AAF (USW00093728): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Davison AAF Thresholds

  • Davison AAF: days with a maximum temperature at or above 30 C (86 F) in 14 years, most in 1959 with 76.
  • Davison AAF: days with a maximum temperature at or above 90 F (32.2 C) in 14 years, most in 1959 with 38.
  • Davison AAF: days with a maximum temperature at or below 0 C (32 F) in 14 years, most in 1963 with 25.
  • Davison AAF: nights with a minimum temperature at or below 0 C (32 F) in 14 years, most in 1966 with 127.
  • 16 fixed thresholds have at least one qualifying day at Davison AAF.
14 years with a qualifying day
Days at or above 30 C (86 F) per year at Davison AAF Days per year at Davison AAF with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 76 in 1959. 0204060801958: 541959: 761960: 581961: 481962: 371963: 441964: 501965: 461966: 541967: 411968: 541969: 711970: 642025: 601958196019621964196619681970
Days per year at Davison AAF with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 76 in 1959.
Days at or above 30 C (86 F) per year at Davison AAF
YearDaysDecade average
19585465
19597665
19605850.3
19614850.3
19623750.3
19634450.3
19645050.3
19654650.3
19665450.3
19674150.3
19685450.3
19697150.3
19706464
20256060
First to last qualifying date each year at Davison AAF For each year, a bar from the first to the last day at Davison AAF meeting 30 C (86 F). 1958: 19 April 1958 to 10 October 19581959: 8 April 1959 to 6 October 19591960: 14 April 1960 to 9 September 19601961: 25 April 1961 to 25 September 19611962: 22 April 1962 to 12 October 19621963: 2 April 1963 to 20 September 19631964: 17 April 1964 to 11 September 19641965: 3 May 1965 to 22 September 19651966: 6 May 1966 to 6 September 19661967: 10 June 1967 to 5 October 19671968: 3 May 1968 to 25 September 19681969: 27 April 1969 to 20 October 19691970: 8 May 1970 to 26 September 19702025: 16 May 2025 to 19 September 20251958196019621964196619681970JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Davison AAF meeting 30 C (86 F).
First to last qualifying date each year at Davison AAF
YearFirst dateLast date
19581958-04-191958-10-10
19591959-04-081959-10-06
19601960-04-141960-09-09
19611961-04-251961-09-25
19621962-04-221962-10-12
19631963-04-021963-09-20
19641964-04-171964-09-11
19651965-05-031965-09-22
19661966-05-061966-09-06
19671967-06-101967-10-05
19681968-05-031968-09-25
19691969-04-271969-10-20
19701970-05-081970-09-26
20252025-05-162025-09-19

Every Fixed Threshold

Fixed thresholds at Davison AAF
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days1476195960
35 C (95 F): Days91019686
90 F (32.2 C): Days1438195932
100 F (37.8 C): Days1219692
0 C (32 F): Ice days (max142519636
0 C (32 F): Frost days (min14127196684
-10 C (14 F): Days with min142819585
-20 C (-4 F): Days with min2319611
20 C (68 F): Tropical nights (min1457202557
25 C (77 F): Days with min2220252
10 mm (0.39 in): Days with 10 mm or more rain1442195836
25 mm (0.98 in): Days with 25 mm or more rain141419698
50 mm (1.97 in): Days with 50 mm or more rain11319663
100 mm (3.94 in): Days with 100 mm or more rain1119661
10 cm (3.9 in): Days with 10 cm or more snowfall11619581
25 cm (9.8 in): Days with 25 cm or more snowfall3219622

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1958.

Download the Data

  • Data for Davison AAF 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).