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Built 2026-10-19 (19 October 2026)

Biloxi Keesler AFB Threshold Days by Year (USW00013820)

15 fixed thresholds counted per year at Biloxi Keesler AFB (USW00013820): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Biloxi Keesler AFB Thresholds

  • Biloxi Keesler AFB: days with 10 mm (0.39 in) or more of precipitation in 18 years, most in 1958 with 62.
  • Biloxi Keesler AFB: days with 25 mm (0.98 in) or more of precipitation in 18 years, most in 1958 with 28.
  • Biloxi Keesler AFB: days with 50 mm (1.97 in) or more of precipitation in 18 years, most in 1970 with 12.
  • Biloxi Keesler AFB: days with a maximum temperature at or above 30 C (86 F) in 17 years, most in 1962 with 136.
  • 15 fixed thresholds have at least one qualifying day at Biloxi Keesler AFB.
17 years with a qualifying day
Days at or above 30 C (86 F) per year at Biloxi Keesler AFB Days per year at Biloxi Keesler AFB with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 136 in 1962. 0501001501949: 1101950: 1041951: 1141952: 1101953: 1141954: 1231955: 1191956: 1111957: 1181958: 1141959: 1301960: 1161961: 961962: 1361963: 821964: 1102025: 126194919511953195519571959196119632025
Days per year at Biloxi Keesler AFB with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 136 in 1962.
Days at or above 30 C (86 F) per year at Biloxi Keesler AFB
YearDaysDecade average
1949110110
1950104115.7
1951114115.7
1952110115.7
1953114115.7
1954123115.7
1955119115.7
1956111115.7
1957118115.7
1958114115.7
1959130115.7
1960116108
196196108
1962136108
196382108
1964110108
2025126126
First to last qualifying date each year at Biloxi Keesler AFB For each year, a bar from the first to the last day at Biloxi Keesler AFB meeting 30 C (86 F). 1949: 3 May 1949 to 13 October 19491950: 17 May 1950 to 16 October 19501951: 22 April 1951 to 6 October 19511952: 29 April 1952 to 2 October 19521953: 16 May 1953 to 22 October 19531954: 1 May 1954 to 12 October 19541955: 24 April 1955 to 6 October 19551956: 8 May 1956 to 7 October 19561957: 14 May 1957 to 22 September 19571958: 13 May 1958 to 9 October 19581959: 5 May 1959 to 13 October 19591960: 24 April 1960 to 18 October 19601961: 18 May 1961 to 1 October 19611962: 5 May 1962 to 17 October 19621963: 15 May 1963 to 22 October 19631964: 2 May 1964 to 30 September 19642025: 19 May 2025 to 19 October 2025194919521955195819611964JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Biloxi Keesler AFB meeting 30 C (86 F).
First to last qualifying date each year at Biloxi Keesler AFB
YearFirst dateLast date
19491949-05-031949-10-13
19501950-05-171950-10-16
19511951-04-221951-10-06
19521952-04-291952-10-02
19531953-05-161953-10-22
19541954-05-011954-10-12
19551955-04-241955-10-06
19561956-05-081956-10-07
19571957-05-141957-09-22
19581958-05-131958-10-09
19591959-05-051959-10-13
19601960-04-241960-10-18
19611961-05-181961-10-01
19621962-05-051962-10-17
19631963-05-151963-10-22
19641964-05-021964-09-30
20252025-05-192025-10-19

Every Fixed Threshold

Fixed thresholds at Biloxi Keesler AFB
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days171361962126
35 C (95 F): Days151619546
90 F (32.2 C): Days1778195459
100 F (37.8 C): Days5219512
0 C (32 F): Ice days (max2419621
0 C (32 F): Frost days (min172819639
-10 C (14 F): Days with min2319621
20 C (68 F): Tropical nights (min171752025175
25 C (77 F): Days with min1767196454
10 mm (0.39 in): Days with 10 mm or more rain1862195848
25 mm (0.98 in): Days with 25 mm or more rain1828195826
50 mm (1.97 in): Days with 50 mm or more rain1812197012
100 mm (3.94 in): Days with 100 mm or more rain12219592
200 mm (7.87 in): Days with 200 mm or more rain1119571
10 cm (3.9 in): Days with 10 cm or more snowfall1119631

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 Biloxi Keesler 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 (2025-12-31).