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Built 2026-10-19 (19 October 2026)

Ft Defiance Threshold Days by Year (USC00023102)

12 fixed thresholds counted per year at Ft Defiance (USC00023102): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ft Defiance Thresholds

  • Ft Defiance: days with 10 mm (0.39 in) or more of precipitation in 14 years, most in 1905 with 21.
  • Ft Defiance: days with 10 cm (3.9 in) or more of snowfall in 12 years, most in 1905 with 7.
  • Ft Defiance: nights with a minimum temperature at or below 0 C (32 F) in 11 years, most in 1903 with 218.
  • Ft Defiance: nights with a minimum temperature at or below -10 C (14 F) in 11 years, most in 1903 with 75.
  • 12 fixed thresholds have at least one qualifying day at Ft Defiance.
9 years with a qualifying day
Days at or above 30 C (86 F) per year at Ft Defiance Days per year at Ft Defiance with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 56 in 1934. 02040601898: 311900: 491901: 531902: 331903: 321904: 71905: 161932: 341934: 56189819001901190219031904190519321934
Days per year at Ft Defiance with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 56 in 1934.
Days at or above 30 C (86 F) per year at Ft Defiance
YearDaysDecade average
18983131
19004931.7
19015331.7
19023331.7
19033231.7
1904731.7
19051631.7
19323445
19345645
First to last qualifying date each year at Ft Defiance For each year, a bar from the first to the last day at Ft Defiance meeting 30 C (86 F). 1898: 16 June 1898 to 19 August 18981900: 7 June 1900 to 31 August 19001901: 17 June 1901 to 28 August 19011902: 6 June 1902 to 21 August 19021903: 26 June 1903 to 19 August 19031904: 10 July 1904 to 16 August 19041905: 22 June 1905 to 23 August 19051932: 15 June 1932 to 16 August 19321934: 12 May 1934 to 6 September 193418981901190319051934JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ft Defiance meeting 30 C (86 F).
First to last qualifying date each year at Ft Defiance
YearFirst dateLast date
18981898-06-161898-08-19
19001900-06-071900-08-31
19011901-06-171901-08-28
19021902-06-061902-08-21
19031903-06-261903-08-19
19041904-07-101904-08-16
19051905-06-221905-08-23
19321932-06-151932-08-16
19341934-05-121934-09-06

Every Fixed Threshold

Fixed thresholds at Ft Defiance
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days956193456
35 C (95 F): Days5819004
90 F (32.2 C): Days935190119
0 C (32 F): Ice days (max93119031
0 C (32 F): Frost days (min112181903173
-10 C (14 F): Days with min1175190328
-20 C (-4 F): Days with min920193220
-30 C (-22 F): Days with min3118983
10 mm (0.39 in): Days with 10 mm or more rain1421190511
25 mm (0.98 in): Days with 25 mm or more rain10519033
10 cm (3.9 in): Days with 10 cm or more snowfall12719052
25 cm (9.8 in): Days with 25 cm or more snowfall7218982

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1898.

Download the Data

  • Data for Ft Defiance 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).