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

Chatom Threshold Days by Year (USC00011566)

16 fixed thresholds counted per year at Chatom (USC00011566): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chatom Thresholds

  • Chatom: days with a maximum temperature at or above 30 C (86 F) in 62 years, most in 1996 with 189.
  • Chatom: days with a maximum temperature at or above 90 F (32.2 C) in 62 years, most in 1996 with 152.
  • Chatom: days with a maximum temperature at or above 35 C (95 F) in 60 years, most in 1996 with 99.
  • Chatom: nights with a minimum temperature at or below 0 C (32 F) in 59 years, most in 2010 with 79.
  • 16 fixed thresholds have at least one qualifying day at Chatom.
62 years with a qualifying day
Days at or above 30 C (86 F) per year at Chatom Days per year at Chatom with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 189 in 1996. 0501001502001950: 1281951: 1501952: 1381953: 1401954: 1521955: 1581956: 1361957: 1371958: 1261959: 1431960: 1411961: 1301962: 1531963: 1481964: 1561965: 1461966: 1281967: 1251968: 1361969: 1301970: 1471971: 1351972: 1491973: 1151974: 1261975: 1181976: 1101977: 1421978: 1441979: 1161980: 1331981: 1421982: 1581983: 1231984: 1621985: 1381986: 1361991: 1301992: 661993: 981994: 1001995: 1371996: 1891997: 1251998: 1351999: 1512000: 1442001: 1302002: 1462003: 1212004: 1292006: 1422007: 1522008: 1172009: 1292010: 1612011: 1352012: 1282013: 1182014: 1362015: 1282017: 124195019571964197119781985199620032011
Days per year at Chatom with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 189 in 1996.
Days at or above 30 C (86 F) per year at Chatom
YearDaysDecade average
1950128140.8
1951150140.8
1952138140.8
1953140140.8
1954152140.8
1955158140.8
1956136140.8
1957137140.8
1958126140.8
1959143140.8
1960141139.3
1961130139.3
1962153139.3
1963148139.3
1964156139.3
1965146139.3
1966128139.3
1967125139.3
1968136139.3
1969130139.3
1970147130.2
1971135130.2
1972149130.2
1973115130.2
1974126130.2
1975118130.2
1976110130.2
1977142130.2
1978144130.2
1979116130.2
1980133141.7
1981142141.7
1982158141.7
1983123141.7
1984162141.7
1985138141.7
1986136141.7
1991130125.7
199266125.7
199398125.7
1994100125.7
1995137125.7
1996189125.7
1997125125.7
1998135125.7
1999151125.7
2000144134.4
2001130134.4
2002146134.4
2003121134.4
2004129134.4
2006142134.4
2007152134.4
2008117134.4
2009129134.4
2010161132.9
2011135132.9
2012128132.9
2013118132.9
2014136132.9
2015128132.9
2017124132.9
First to last qualifying date each year at Chatom For each year, a bar from the first to the last day at Chatom meeting 30 C (86 F). 1950: 27 March 1950 to 1 November 19501951: 22 April 1951 to 7 December 19511952: 28 April 1952 to 3 November 19521953: 8 April 1953 to 23 October 19531954: 24 March 1954 to 26 October 19541955: 11 March 1955 to 23 October 19551956: 5 April 1956 to 3 November 19561957: 2 April 1957 to 16 November 19571958: 4 April 1958 to 10 October 19581959: 19 April 1959 to 13 October 19591960: 20 April 1960 to 16 October 19601961: 23 April 1961 to 2 November 19611962: 11 April 1962 to 20 October 19621963: 13 March 1963 to 29 October 19631964: 17 March 1964 to 29 October 19641965: 5 April 1965 to 10 October 19651966: 1 April 1966 to 15 October 19661967: 11 March 1967 to 24 November 19671968: 8 April 1968 to 14 October 19681969: 5 May 1969 to 20 October 19691970: 18 April 1970 to 11 October 19701971: 15 April 1971 to 1 November 19711972: 28 March 1972 to 2 November 19721973: 9 March 1973 to 11 October 19731974: 10 March 1974 to 28 September 19741975: 25 April 1975 to 15 October 19751976: 19 April 1976 to 5 October 19761977: 26 February 1977 to 2 October 19771978: 31 March 1978 to 22 October 19781979: 11 April 1979 to 22 October 19791980: 22 April 1980 to 11 October 19801981: 4 April 1981 to 17 October 19811982: 15 March 1982 to 12 October 19821983: 1 May 1983 to 4 November 19831984: 14 March 1984 to 31 October 19841985: 18 April 1985 to 21 October 19851986: 5 April 1986 to 6 October 19861991: 26 March 1991 to 15 October 19911992: 13 April 1992 to 13 September 19921993: 6 June 1993 to 10 October 19931994: 29 April 1994 to 25 October 19941995: 22 March 1995 to 6 October 19951996: 14 April 1996 to 9 November 19961997: 23 March 1997 to 12 October 19971998: 30 March 1998 to 31 October 19981999: 2 April 1999 to 3 October 19992000: 10 March 2000 to 3 November 20002001: 5 April 2001 to 24 October 20012002: 16 March 2002 to 12 October 20022003: 13 April 2003 to 5 November 20032004: 19 March 2004 to 3 November 20042006: 3 January 2006 to 19 October 20062007: 22 March 2007 to 18 October 20072008: 16 March 2008 to 14 October 20082009: 6 April 2009 to 10 October 20092010: 6 April 2010 to 28 October 20102011: 26 March 2011 to 17 October 20112012: 16 March 2012 to 29 September 20122013: 17 April 2013 to 13 October 20132014: 26 April 2014 to 14 October 20142015: 17 March 2015 to 13 October 20152017: 21 March 2017 to 18 October 201719501958196619741982199420022011JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Chatom meeting 30 C (86 F).
First to last qualifying date each year at Chatom
YearFirst dateLast date
19501950-03-271950-11-01
19511951-04-221951-12-07
19521952-04-281952-11-03
19531953-04-081953-10-23
19541954-03-241954-10-26
19551955-03-111955-10-23
19561956-04-051956-11-03
19571957-04-021957-11-16
19581958-04-041958-10-10
19591959-04-191959-10-13
19601960-04-201960-10-16
19611961-04-231961-11-02
19621962-04-111962-10-20
19631963-03-131963-10-29
19641964-03-171964-10-29
19651965-04-051965-10-10
19661966-04-011966-10-15
19671967-03-111967-11-24
19681968-04-081968-10-14
19691969-05-051969-10-20
19701970-04-181970-10-11
19711971-04-151971-11-01
19721972-03-281972-11-02
19731973-03-091973-10-11
19741974-03-101974-09-28
19751975-04-251975-10-15
19761976-04-191976-10-05
19771977-02-261977-10-02
19781978-03-311978-10-22
19791979-04-111979-10-22
19801980-04-221980-10-11
19811981-04-041981-10-17
19821982-03-151982-10-12
19831983-05-011983-11-04
19841984-03-141984-10-31
19851985-04-181985-10-21
19861986-04-051986-10-06
19911991-03-261991-10-15
19921992-04-131992-09-13
19931993-06-061993-10-10
19941994-04-291994-10-25
19951995-03-221995-10-06
19961996-04-141996-11-09
19971997-03-231997-10-12
19981998-03-301998-10-31
19991999-04-021999-10-03
20002000-03-102000-11-03
20012001-04-052001-10-24
20022002-03-162002-10-12
20032003-04-132003-11-05
20042004-03-192004-11-03
20062006-01-032006-10-19
20072007-03-222007-10-18
20082008-03-162008-10-14
20092009-04-062009-10-10
20102010-04-062010-10-28
20112011-03-262011-10-17
20122012-03-162012-09-29
20132013-04-172013-10-13
20142014-04-262014-10-14
20152015-03-172015-10-13
20172017-03-212017-10-18

Every Fixed Threshold

Fixed thresholds at Chatom
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days621891996124
35 C (95 F): Days609919962
40 C (104 F): Days8419544
90 F (32.2 C): Days62152199652
100 F (37.8 C): Days253419547
0 C (32 F): Ice days (max12420141
0 C (32 F): Frost days (min5979201036
-10 C (14 F): Days with min28819832
20 C (68 F): Tropical nights (min59115200267
25 C (77 F): Days with min19819861
10 mm (0.39 in): Days with 10 mm or more rain5866200943
25 mm (0.98 in): Days with 25 mm or more rain5834201224
50 mm (1.97 in): Days with 50 mm or more rain581420128
100 mm (3.94 in): Days with 100 mm or more rain30419791
200 mm (7.87 in): Days with 200 mm or more rain2219982
10 cm (3.9 in): Days with 10 cm or more snowfall2119631

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1950.

Download the Data

  • Data for Chatom 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).