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

Peru Grissom AFB Threshold Days by Year (USW00094833)

15 fixed thresholds counted per year at Peru Grissom AFB (USW00094833): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Peru Grissom AFB Thresholds

  • Peru Grissom AFB: days with a maximum temperature at or above 30 C (86 F) in 16 years, most in 1959 with 62.
  • Peru Grissom AFB: days with a maximum temperature at or above 90 F (32.2 C) in 16 years, most in 1966 with 36.
  • Peru Grissom AFB: days with a maximum temperature at or below 0 C (32 F) in 16 years, most in 1960 with 66.
  • Peru Grissom AFB: nights with a minimum temperature at or below 0 C (32 F) in 16 years, most in 1966 with 143.
  • 15 fixed thresholds have at least one qualifying day at Peru Grissom AFB.
16 years with a qualifying day
Days at or above 30 C (86 F) per year at Peru Grissom AFB Days per year at Peru Grissom AFB with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 62 in 1959. 0204060801956: 381957: 421958: 211959: 621960: 291961: 291962: 231963: 231964: 361965: 151966: 571967: 181968: 341969: 321970: 352025: 5219561958196019621964196619681970
Days per year at Peru Grissom AFB with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 62 in 1959.
Days at or above 30 C (86 F) per year at Peru Grissom AFB
YearDaysDecade average
19563840.8
19574240.8
19582140.8
19596240.8
19602929.6
19612929.6
19622329.6
19632329.6
19643629.6
19651529.6
19665729.6
19671829.6
19683429.6
19693229.6
19703535
20255252
First to last qualifying date each year at Peru Grissom AFB For each year, a bar from the first to the last day at Peru Grissom AFB meeting 30 C (86 F). 1956: 12 May 1956 to 22 September 19561957: 5 June 1957 to 1 September 19571958: 17 May 1958 to 6 September 19581959: 2 May 1959 to 28 September 19591960: 23 April 1960 to 8 September 19601961: 11 June 1961 to 23 September 19611962: 14 May 1962 to 13 September 19621963: 6 June 1963 to 7 October 19631964: 19 May 1964 to 10 September 19641965: 21 May 1965 to 17 September 19651966: 12 June 1966 to 2 September 19661967: 27 May 1967 to 17 August 19671968: 6 June 1968 to 23 September 19681969: 28 May 1969 to 6 September 19691970: 22 May 1970 to 21 September 19702025: 15 May 2025 to 4 October 202519561958196019621964196619681970JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Peru Grissom AFB meeting 30 C (86 F).
First to last qualifying date each year at Peru Grissom AFB
YearFirst dateLast date
19561956-05-121956-09-22
19571957-06-051957-09-01
19581958-05-171958-09-06
19591959-05-021959-09-28
19601960-04-231960-09-08
19611961-06-111961-09-23
19621962-05-141962-09-13
19631963-06-061963-10-07
19641964-05-191964-09-10
19651965-05-211965-09-17
19661966-06-121966-09-02
19671967-05-271967-08-17
19681968-06-061968-09-23
19691969-05-281969-09-06
19701970-05-221970-09-21
20252025-05-152025-10-04

Every Fixed Threshold

Fixed thresholds at Peru Grissom AFB
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days1662195952
35 C (95 F): Days71419663
90 F (32.2 C): Days1636196621
0 C (32 F): Ice days (max1666196039
0 C (32 F): Frost days (min161431966104
-10 C (14 F): Days with min1655196329
-20 C (-4 F): Days with min142019631
20 C (68 F): Tropical nights (min1647202547
25 C (77 F): Days with min2119561
10 mm (0.39 in): Days with 10 mm or more rain1541196930
25 mm (0.98 in): Days with 25 mm or more rain151319686
50 mm (1.97 in): Days with 50 mm or more rain13419691
100 mm (3.94 in): Days with 100 mm or more rain1119581
10 cm (3.9 in): Days with 10 cm or more snowfall10319652
25 cm (9.8 in): Days with 25 cm or more snowfall1119611

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1956.

Download the Data

  • Data for Peru Grissom 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).