Built 2026-10-19 (19 October 2026)

Myrtle Beach AFB Threshold Days by Year (USW00013717)

14 fixed thresholds counted per year at Myrtle Beach AFB (USW00013717): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Myrtle Beach AFB Thresholds

  • Myrtle Beach AFB: days with a maximum temperature at or above 30 C (86 F) in 15 years, most in 1970 with 79.
  • Myrtle Beach AFB: days with a maximum temperature at or above 90 F (32.2 C) in 15 years, most in 1970 with 31.
  • Myrtle Beach AFB: nights with a minimum temperature at or below 0 C (32 F) in 15 years, most in 1968 with 62.
  • Myrtle Beach AFB: nights with a minimum temperature at or above 20 C (68 F) in 15 years, most in 1959 with 121.
  • 14 fixed thresholds have at least one qualifying day at Myrtle Beach AFB.
15 years with a qualifying day
Days at or above 30 C (86 F) per year at Myrtle Beach AFB Days per year at Myrtle Beach AFB with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 79 in 1970. 0204060801957: 621958: 601959: 631960: 631961: 591962: 441963: 521964: 291965: 571966: 451967: 201968: 501969: 621970: 792025: 5719571959196119631965196719692025
Days per year at Myrtle Beach AFB with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 79 in 1970.
Days at or above 30 C (86 F) per year at Myrtle Beach AFB
YearDaysDecade average
19576261.7
19586061.7
19596361.7
19606348.1
19615948.1
19624448.1
19635248.1
19642948.1
19655748.1
19664548.1
19672048.1
19685048.1
19696248.1
19707979
20255757
First to last qualifying date each year at Myrtle Beach AFB For each year, a bar from the first to the last day at Myrtle Beach AFB meeting 30 C (86 F). 1957: 20 May 1957 to 23 September 19571958: 24 April 1958 to 26 September 19581959: 20 April 1959 to 14 October 19591960: 16 May 1960 to 21 September 19601961: 24 April 1961 to 25 September 19611962: 23 April 1962 to 8 October 19621963: 18 March 1963 to 13 September 19631964: 23 April 1964 to 1 September 19641965: 12 April 1965 to 21 September 19651966: 30 May 1966 to 5 October 19661967: 15 March 1967 to 28 August 19671968: 23 June 1968 to 11 September 19681969: 7 June 1969 to 7 September 19691970: 21 April 1970 to 27 September 19702025: 16 May 2025 to 26 September 202519571959196119631965196719692025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Myrtle Beach AFB meeting 30 C (86 F).
First to last qualifying date each year at Myrtle Beach AFB
YearFirst dateLast date
19571957-05-201957-09-23
19581958-04-241958-09-26
19591959-04-201959-10-14
19601960-05-161960-09-21
19611961-04-241961-09-25
19621962-04-231962-10-08
19631963-03-181963-09-13
19641964-04-231964-09-01
19651965-04-121965-09-21
19661966-05-301966-10-05
19671967-03-151967-08-28
19681968-06-231968-09-11
19691969-06-071969-09-07
19701970-04-211970-09-27
20252025-05-162025-09-26

Every Fixed Threshold

Fixed thresholds at Myrtle Beach AFB
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days1579197057
35 C (95 F): Days121019683
90 F (32.2 C): Days1531197014
100 F (37.8 C): Days1119591
0 C (32 F): Ice days (max10419701
0 C (32 F): Frost days (min1562196830
-10 C (14 F): Days with min4319703
20 C (68 F): Tropical nights (min151211959120
25 C (77 F): Days with min1433202533
10 mm (0.39 in): Days with 10 mm or more rain154519647
25 mm (0.98 in): Days with 25 mm or more rain152219643
50 mm (1.97 in): Days with 50 mm or more rain15919641
100 mm (3.94 in): Days with 100 mm or more rain6319602
200 mm (7.87 in): Days with 200 mm or more rain1119691

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1957.

Download the Data

  • Data for Myrtle Beach 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).