Built 2026-10-19 (19 October 2026)

Memphis WFO Threshold Days by Year (USC00405956)

16 fixed thresholds counted per year at Memphis WFO (USC00405956): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Memphis WFO Thresholds

  • Memphis WFO: days with a maximum temperature at or above 30 C (86 F) in 37 years, most in 2007 with 148.
  • Memphis WFO: days with a maximum temperature at or above 90 F (32.2 C) in 37 years, most in 2010 with 101.
  • Memphis WFO: nights with a minimum temperature at or below 0 C (32 F) in 37 years, most in 2014 with 91.
  • Memphis WFO: nights with a minimum temperature at or above 20 C (68 F) in 37 years, most in 2018 with 110.
  • 16 fixed thresholds have at least one qualifying day at Memphis WFO.
37 years with a qualifying day
Days at or above 30 C (86 F) per year at Memphis WFO Days per year at Memphis WFO with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 148 in 2007. 0501001501989: 831990: 971991: 1001992: 691993: 991994: 891995: 981997: 641998: 1211999: 1062000: 862001: 1062002: 1212003: 822004: 922005: 1172006: 1192007: 1482008: 1022009: 892010: 1372011: 1182012: 1172013: 992014: 1032015: 1082016: 1272017: 1082018: 1322019: 1282020: 952021: 952022: 1152023: 1092024: 1082025: 1162026: 1321989199319982002200620102014201820222026
Days per year at Memphis WFO with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 148 in 2007.
Days at or above 30 C (86 F) per year at Memphis WFO
YearDaysDecade average
19898383
19909793.7
199110093.7
19926993.7
19939993.7
19948993.7
19959893.7
19976493.7
199812193.7
199910693.7
200086106.2
2001106106.2
2002121106.2
200382106.2
200492106.2
2005117106.2
2006119106.2
2007148106.2
2008102106.2
200989106.2
2010137117.7
2011118117.7
2012117117.7
201399117.7
2014103117.7
2015108117.7
2016127117.7
2017108117.7
2018132117.7
2019128117.7
202095110
202195110
2022115110
2023109110
2024108110
2025116110
2026132110
First to last qualifying date each year at Memphis WFO For each year, a bar from the first to the last day at Memphis WFO meeting 30 C (86 F). 1989: 23 April 1989 to 13 October 19891990: 25 April 1990 to 6 October 19901991: 15 May 1991 to 4 October 19911992: 15 April 1992 to 21 September 19921993: 6 May 1993 to 7 October 19931994: 28 April 1994 to 2 October 19941995: 10 April 1995 to 1 October 19951997: 18 May 1997 to 13 October 19971998: 13 May 1998 to 30 September 19981999: 24 April 1999 to 16 October 19992000: 20 April 2000 to 2 November 20002001: 10 April 2001 to 24 September 20012002: 16 April 2002 to 7 October 20022003: 14 April 2003 to 25 October 20032004: 7 May 2004 to 27 October 20042005: 22 April 2005 to 20 October 20052006: 2 April 2006 to 19 October 20062007: 25 March 2007 to 19 October 20072008: 24 April 2008 to 15 October 20082009: 24 April 2009 to 28 September 20092010: 14 April 2010 to 12 October 20102011: 10 April 2011 to 18 October 20112012: 2 April 2012 to 29 September 20122013: 17 April 2013 to 6 October 20132014: 5 May 2014 to 27 October 20142015: 9 April 2015 to 16 October 20152016: 27 April 2016 to 1 November 20162017: 14 April 2017 to 15 October 20172018: 3 May 2018 to 10 October 20182019: 11 April 2019 to 11 October 20192020: 27 March 2020 to 23 October 20202021: 10 April 2021 to 14 October 20212022: 23 April 2022 to 26 September 20222023: 5 April 2023 to 22 October 20232024: 27 April 2024 to 26 October 20242025: 3 April 2025 to 18 October 20252026: 23 March 2026 to 15 October 202619891994200020052010201520202025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Memphis WFO meeting 30 C (86 F).
First to last qualifying date each year at Memphis WFO
YearFirst dateLast date
19891989-04-231989-10-13
19901990-04-251990-10-06
19911991-05-151991-10-04
19921992-04-151992-09-21
19931993-05-061993-10-07
19941994-04-281994-10-02
19951995-04-101995-10-01
19971997-05-181997-10-13
19981998-05-131998-09-30
19991999-04-241999-10-16
20002000-04-202000-11-02
20012001-04-102001-09-24
20022002-04-162002-10-07
20032003-04-142003-10-25
20042004-05-072004-10-27
20052005-04-222005-10-20
20062006-04-022006-10-19
20072007-03-252007-10-19
20082008-04-242008-10-15
20092009-04-242009-09-28
20102010-04-142010-10-12
20112011-04-102011-10-18
20122012-04-022012-09-29
20132013-04-172013-10-06
20142014-05-052014-10-27
20152015-04-092015-10-16
20162016-04-272016-11-01
20172017-04-142017-10-15
20182018-05-032018-10-10
20192019-04-112019-10-11
20202020-03-272020-10-23
20212021-04-102021-10-14
20222022-04-232022-09-26
20232023-04-052023-10-22
20242024-04-272024-10-26
20252025-04-032025-10-18
20262026-03-232026-10-15

Every Fixed Threshold

Fixed thresholds at Memphis WFO
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days371482007132
35 C (95 F): Days3553201052
40 C (104 F): Days4320071
90 F (32.2 C): Days37101201092
100 F (37.8 C): Days1813200711
0 C (32 F): Ice days (max361919894
0 C (32 F): Frost days (min3791201434
-10 C (14 F): Days with min261020146
-20 C (-4 F): Days with min1319893
20 C (68 F): Tropical nights (min371102018121
25 C (77 F): Days with min3317201021
10 mm (0.39 in): Days with 10 mm or more rain3759200929
25 mm (0.98 in): Days with 25 mm or more rain3726201815
50 mm (1.97 in): Days with 50 mm or more rain361020024
100 mm (3.94 in): Days with 100 mm or more rain13220022
10 cm (3.9 in): Days with 10 cm or more snowfall4120081

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1989.

Download the Data

  • Data for Memphis WFO 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).