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Built 2026-10-19 (19 October 2026)

Randolph AFB Threshold Days by Year (USW00012911)

15 fixed thresholds counted per year at Randolph AFB (USW00012911): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Randolph AFB Thresholds

  • Randolph AFB: days with a maximum temperature at or above 30 C (86 F) in 30 years, most in 2025 with 201.
  • Randolph AFB: days with a maximum temperature at or above 35 C (95 F) in 30 years, most in 2024 with 108.
  • Randolph AFB: days with a maximum temperature at or above 90 F (32.2 C) in 30 years, most in 2025 with 166.
  • Randolph AFB: nights with a minimum temperature at or below 0 C (32 F) in 30 years, most in 1963 with 34.
  • 15 fixed thresholds have at least one qualifying day at Randolph AFB.
30 years with a qualifying day
Days at or above 30 C (86 F) per year at Randolph AFB Days per year at Randolph AFB with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 201 in 2025. 01002003001949: 1431950: 1661951: 1591952: 1301953: 1521954: 1601955: 1841956: 1721957: 1221958: 1291959: 1381960: 1421961: 1331962: 1541963: 1541964: 1271965: 1231966: 1251967: 1591968: 1161969: 1261970: 1332019: 1512020: 1672021: 1502022: 1852023: 1622024: 1912025: 2012026: 1871949195219551958196119641967197020212024
Days per year at Randolph AFB with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 201 in 2025.
Days at or above 30 C (86 F) per year at Randolph AFB
YearDaysDecade average
1949143143
1950166151.2
1951159151.2
1952130151.2
1953152151.2
1954160151.2
1955184151.2
1956172151.2
1957122151.2
1958129151.2
1959138151.2
1960142135.9
1961133135.9
1962154135.9
1963154135.9
1964127135.9
1965123135.9
1966125135.9
1967159135.9
1968116135.9
1969126135.9
1970133133
2019151151
2020167177.6
2021150177.6
2022185177.6
2023162177.6
2024191177.6
2025201177.6
2026187177.6
First to last qualifying date each year at Randolph AFB For each year, a bar from the first to the last day at Randolph AFB meeting 30 C (86 F). 1949: 6 March 1949 to 29 November 19491950: 24 March 1950 to 19 November 19501951: 6 March 1951 to 15 November 19511952: 29 February 1952 to 5 October 19521953: 1 March 1953 to 21 October 19531954: 10 February 1954 to 26 October 19541955: 10 March 1955 to 25 December 19551956: 17 February 1956 to 11 October 19561957: 10 February 1957 to 16 October 19571958: 3 April 1958 to 9 October 19581959: 17 February 1959 to 26 October 19591960: 9 February 1960 to 13 October 19601961: 14 April 1961 to 9 October 19611962: 9 February 1962 to 11 November 19621963: 30 March 1963 to 15 October 19631964: 27 April 1964 to 17 October 19641965: 5 April 1965 to 17 October 19651966: 1 April 1966 to 22 October 19661967: 3 March 1967 to 26 November 19671968: 27 April 1968 to 15 October 19681969: 20 May 1969 to 12 November 19691970: 12 April 1970 to 27 October 19702019: 9 March 2019 to 24 October 20192020: 12 March 2020 to 14 November 20202021: 27 March 2021 to 26 October 20212022: 26 March 2022 to 7 November 20222023: 21 February 2023 to 28 October 20232024: 22 February 2024 to 30 December 20242025: 6 February 2025 to 20 November 20252026: 2 January 2026 to 14 October 202619491953195719611965196920212025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Randolph AFB meeting 30 C (86 F).
First to last qualifying date each year at Randolph AFB
YearFirst dateLast date
19491949-03-061949-11-29
19501950-03-241950-11-19
19511951-03-061951-11-15
19521952-02-291952-10-05
19531953-03-011953-10-21
19541954-02-101954-10-26
19551955-03-101955-12-25
19561956-02-171956-10-11
19571957-02-101957-10-16
19581958-04-031958-10-09
19591959-02-171959-10-26
19601960-02-091960-10-13
19611961-04-141961-10-09
19621962-02-091962-11-11
19631963-03-301963-10-15
19641964-04-271964-10-17
19651965-04-051965-10-17
19661966-04-011966-10-22
19671967-03-031967-11-26
19681968-04-271968-10-15
19691969-05-201969-11-12
19701970-04-121970-10-27
20192019-03-092019-10-24
20202020-03-122020-11-14
20212021-03-272021-10-26
20222022-03-262022-11-07
20232023-02-212023-10-28
20242024-02-222024-12-30
20252025-02-062025-11-20
20262026-01-022026-10-14

Every Fixed Threshold

Fixed thresholds at Randolph AFB
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days302012025187
35 C (95 F): Days30108202485
40 C (104 F): Days112620232
90 F (32.2 C): Days301662025145
100 F (37.8 C): Days2674202336
0 C (32 F): Ice days (max7620211
0 C (32 F): Frost days (min303419639
-10 C (14 F): Days with min7320213
20 C (68 F): Tropical nights (min301612024154
25 C (77 F): Days with min3052202440
10 mm (0.39 in): Days with 10 mm or more rain2831194916
25 mm (0.98 in): Days with 25 mm or more rain281519577
50 mm (1.97 in): Days with 50 mm or more rain24619653
100 mm (3.94 in): Days with 100 mm or more rain3119572
10 cm (3.9 in): Days with 10 cm or more snowfall1119491

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

Download the Data

  • Data for Randolph AFB 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).