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Old Hickory WFO Weather Records (USC00406806)

Record envelope, standing records and threshold days for Old Hickory WFO (USC00406806), Tennessee, United States, with 37 years of record.

Key Facts for Old Hickory WFO

  • Old Hickory WFO (USC00406806) is a weather station in Tennessee, United States at 36.25 latitude and -86.56 longitude, 180 m (590 ft) above sea level.
  • The station reports from 1990 to 2026, 37 years of record.
  • 1,464 records set at Old Hickory WFO still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Old Hickory WFO set a daily record high maximum temperature of 32.2 C (90.0 F) on 14 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Tennessee, United States, 36.25 latitude, -86.56 longitude.
  • Elevation: 180 m (590 ft).
  • Period of record: 1990 to 2026, 37 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

37 days at or beyond a record
Daily record high and record low at Old Hickory WFO, with 2026 drawn through them The band shows the record high and record low for each calendar day at Old Hickory WFO. The lines show the 2026 daily maximum and minimum. 37 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Old Hickory WFO. The lines show the 2026 daily maximum and minimum. 37 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Old Hickory WFO, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan24.4 C (75.9 F)-20.6 C (-5.1 F)21.1 C (70.0 F)-13.9 C (7.0 F)
Feb27.8 C (82.0 F)-19.4 C (-2.9 F)24.4 C (75.9 F)-10.6 C (12.9 F)
Mar31.7 C (89.1 F)-12.8 C (9.0 F)31.7 C (89.1 F)-4.4 C (24.1 F)
Apr32.2 C (90.0 F)-5.0 C (23.0 F)30.6 C (87.1 F)6.1 C (43.0 F)
May33.9 C (93.0 F)1.7 C (35.1 F)33.9 C (93.0 F)4.4 C (39.9 F)
Jun41.1 C (106.0 F)9.4 C (48.9 F)35.0 C (95.0 F)13.3 C (55.9 F)
Jul41.7 C (107.1 F)12.8 C (55.0 F)36.1 C (97.0 F)18.3 C (64.9 F)
Aug40.6 C (105.1 F)10.6 C (51.1 F)36.1 C (97.0 F)17.2 C (63.0 F)
Sep37.8 C (100.0 F)3.9 C (39.0 F)37.8 C (100.0 F)11.7 C (53.1 F)
Oct35.6 C (96.1 F)-1.7 C (28.9 F)33.9 C (93.0 F)11.1 C (52.0 F)
Nov30.6 C (87.1 F)-9.4 C (15.1 F)n/an/a
Dec25.0 C (77.0 F)-19.4 C (-2.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Old Hickory WFO by the year they were set 1,464 records at Old Hickory WFO still stand. 2007 holds the most, with 68. 0204060801990: 71991: 531992: 441993: 411994: 351995: 351996: 561997: 411998: 591999: 432000: 512001: 302002: 362003: 322004: 322005: 252006: 512007: 682008: 382009: 342010: 452011: 502012: 552013: 372014: 432015: 472016: 302017: 542018: 482019: 362020: 322021: 242022: 392023: 242024: 312025: 252026: 331990199419982002200620102014201820222026
1,464 records at Old Hickory WFO still stand. 2007 holds the most, with 68.
Standing records at Old Hickory WFO by the year they were set
Year setStanding records
19907
199153
199244
199341
199435
199535
199656
199741
199859
199943
200051
200130
200236
200332
200432
200525
200651
200768
200838
200934
201045
201150
201255
201337
201443
201547
201630
201754
201848
201936
202032
202124
202239
202324
202431
202525
202633

All-Time Record Progression

1 new records
When Old Hickory WFO set new all-time records 1 all-time records were set at Old Hickory WFO between 24 December 2022 and 24 December 2022. Each dot is a new record. Record low maximum temperature24 December 2022: Record low maximum temperature -14.4 C (6.1 F)
1 all-time records were set at Old Hickory WFO between 24 December 2022 and 24 December 2022. Each dot is a new record.
When Old Hickory WFO set new all-time records
DateKindDetail
2022-12-24Record low maximum temperatureRecord low maximum temperature -14.4 C (6.1 F)

Wettest Day of Each Month

May: 219.2 mm (8.6 in)
Record daily precipitation for each month at Old Hickory WFO The wettest day on record for each calendar month at Old Hickory WFO. The most was 219.2 mm (8.6 in) on 3 May 2010. 0100200300 Jan: 71.4 mm (2.8 in), 22 January 1999 Jan Feb: 99.8 mm (3.9 in), 7 February 2019 Feb Mar: 112.0 mm (4.4 in), 28 March 2021 Mar Apr: 86.9 mm (3.4 in), 28 April 2013 Apr May: 219.2 mm (8.6 in), 3 May 2010 May Jun: 77.0 mm (3.0 in), 5 June 1998 Jun Jul: 119.6 mm (4.7 in), 20 July 2012 Jul Aug: 130.6 mm (5.1 in), 19 August 2010 Aug Sep: 118.4 mm (4.7 in), 22 September 2003 Sep Oct: 77.0 mm (3.0 in), 5 October 1995 Oct Nov: 91.4 mm (3.6 in), 29 November 2001 Nov Dec: 82.3 mm (3.2 in), 10 December 2008 Dec
The wettest day on record for each calendar month at Old Hickory WFO. The most was 219.2 mm (8.6 in) on 3 May 2010.
Record daily precipitation for each month at Old Hickory WFO
MonthRecord daily precipitation (mm)Date
Jan71.4 mm (2.8 in)22 January 1999
Feb99.8 mm (3.9 in)7 February 2019
Mar112.0 mm (4.4 in)28 March 2021
Apr86.9 mm (3.4 in)28 April 2013
May219.2 mm (8.6 in)3 May 2010
Jun77.0 mm (3.0 in)5 June 1998
Jul119.6 mm (4.7 in)20 July 2012
Aug130.6 mm (5.1 in)19 August 2010
Sep118.4 mm (4.7 in)22 September 2003
Oct77.0 mm (3.0 in)5 October 1995
Nov91.4 mm (3.6 in)29 November 2001
Dec82.3 mm (3.2 in)10 December 2008

Period of Record Coverage

1990 to 2026
Days with data per year at Old Hickory WFO 37 years of record at Old Hickory WFO, 1990 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1990, 1994, 2026. 1990: 61 of 365 days1991: 360 of 365 days1992: 365 of 366 days1993: 365 of 365 days1994: 325 of 365 days1995: 365 of 365 days1996: 362 of 366 days1997: 333 of 365 days1998: 364 of 365 days1999: 359 of 365 days2000: 365 of 366 days2001: 360 of 365 days2002: 362 of 365 days2003: 361 of 365 days2004: 364 of 366 days2005: 365 of 365 days2006: 364 of 365 days2007: 363 of 365 days2008: 365 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 364 of 365 days2012: 362 of 366 days2013: 365 of 365 days2014: 363 of 365 days2015: 364 of 365 days2016: 364 of 366 days2017: 365 of 365 days2018: 362 of 365 days2019: 364 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 360 of 365 days2024: 361 of 366 days2025: 358 of 365 days2026: 286 of 365 days19901995200020052010201520202025
37 years of record at Old Hickory WFO, 1990 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1990, 1994, 2026.
Days with data per year at Old Hickory WFO
YearDays with dataShare of yearComplete
19906117%No
199136099%Yes
1992365100%Yes
1993365100%Yes
199432589%No
1995365100%Yes
199636299%Yes
199733391%Yes
1998364100%Yes
199935998%Yes
2000365100%Yes
200136099%Yes
200236299%Yes
200336199%Yes
200436499%Yes
2005365100%Yes
2006364100%Yes
200736399%Yes
2008365100%Yes
2009365100%Yes
2010365100%Yes
2011364100%Yes
201236299%Yes
2013365100%Yes
201436399%Yes
2015364100%Yes
201636499%Yes
2017365100%Yes
201836299%Yes
2019364100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
202336099%Yes
202436199%Yes
202535898%Yes
202628678%No

Latest Records

20
Latest records at Old Hickory WFO
DateStationRecordValueBeat old record byOld record stoodSignificance
14 October 2026Old Hickory WFO, USdaily high max (Provisional)32.2 C (90.0 F)3.3 C (5.9 F)4 years10 of 100 (Routine)
13 October 2026Old Hickory WFO, USdaily high max (Provisional)30.6 C (87.1 F)2.3 C (4.1 F)17 years12 of 100 (Routine)
3 October 2026Old Hickory WFO, USdaily rain (Provisional)43.7 mm (1.7 in)17.0 mm (0.7 in)28 years24 of 100 (Routine)
21 September 2026Old Hickory WFO, USdaily high min (Provisional)23.3 C (73.9 F)1.6 C (2.9 F)33 years17 of 100 (Routine)
20 September 2026Old Hickory WFO, USdaily high min (Provisional)23.3 C (73.9 F)1.1 C (2.0 F)28 years13 of 100 (Routine)
20 September 2026Old Hickory WFO, USdaily high max (Provisional)36.1 C (97.0 F)1.7 C (3.1 F)8 years9 of 100 (Routine)
19 September 2026Old Hickory WFO, USdaily high max (Provisional)37.2 C (99.0 F)2.2 C (4.0 F)28 years16 of 100 (Routine)
19 September 2026Old Hickory WFO, USdaily high min (Provisional)23.3 C (73.9 F)1.6 C (2.9 F)24 years14 of 100 (Routine)
18 September 2026Old Hickory WFO, USdaily high min (Provisional)23.9 C (75.0 F)2.8 C (5.0 F)28 years18 of 100 (Routine)
18 September 2026Old Hickory WFO, USdaily high max (Provisional)36.1 C (97.0 F)1.7 C (3.1 F)7 years9 of 100 (Routine)
17 September 2026Old Hickory WFO, USdaily high min (Provisional)23.9 C (75.0 F)1.7 C (3.1 F)35 years17 of 100 (Routine)
17 September 2026Old Hickory WFO, USdaily high max (Provisional)35.6 C (96.1 F)0.6 C (1.1 F)7 years6 of 100 (Routine)
16 September 2026Old Hickory WFO, USdaily high max (Provisional)36.7 C (98.1 F)2.3 C (4.1 F)35 years18 of 100 (Routine)
12 September 2026Old Hickory WFO, USdaily high max (Tie, Provisional)33.9 C (93.0 F)tie35 years3 of 100 (Routine)
12 September 2026Old Hickory WFO, USdaily high min (Tie, Provisional)21.7 C (71.1 F)tie17 years2 of 100 (Routine)
10 September 2026Old Hickory WFO, USdaily high min (Provisional)22.2 C (72.0 F)0.5 C (0.9 F)25 years11 of 100 (Routine)
10 September 2026Old Hickory WFO, USdaily high max (Tie, Provisional)35.0 C (95.0 F)tie24 years2 of 100 (Routine)
9 September 2026Old Hickory WFO, USdaily high max (Tie, Provisional)33.3 C (91.9 F)tie24 years2 of 100 (Routine)
9 September 2026Old Hickory WFO, USdaily high min (Tie, Provisional)22.2 C (72.0 F)tie8 years1 of 100 (Routine)
7 September 2026Old Hickory WFO, USdaily high max (Provisional)35.6 C (96.1 F)0.6 C (1.1 F)28 years12 of 100 (Routine)

Climate Trend

33 complete years, 1991 to 2025
Annual mean temperature at Old Hickory WFO as warming stripes, 1991 to 2025 One stripe for each of 33 complete years at Old Hickory WFO, 1991 to 2025. Blue stripes are years cooler than the station's own mean of 15.2 C (59.4 F); red stripes are warmer. The coolest year was 2014, at 13.9 C (57.1 F), and the warmest was 1998, at 16.7 C (62.0 F). The strongest colour marks a difference of 1.5 C (2.7 F). 1991: 15.6 C, +0.4 C from the station mean1992: 14.4 C, -0.8 C from the station mean1993: 14.5 C, -0.8 C from the station mean1995: 15.0 C, -0.2 C from the station mean1996: 14.7 C, -0.6 C from the station mean1998: 16.7 C, +1.4 C from the station mean1999: 16.2 C, +1.0 C from the station mean2000: 15.3 C, +0.1 C from the station mean2001: 15.0 C, -0.3 C from the station mean2002: 15.1 C, -0.1 C from the station mean2003: 14.2 C, -1.0 C from the station mean2004: 15.2 C, -0.1 C from the station mean2005: 15.5 C, +0.3 C from the station mean2006: 15.7 C, +0.5 C from the station mean2007: 16.1 C, +0.9 C from the station mean2008: 14.3 C, -0.9 C from the station mean2009: 14.1 C, -1.1 C from the station mean2010: 14.8 C, -0.5 C from the station mean2011: 15.2 C, 0.0 C from the station mean2012: 16.2 C, +1.0 C from the station mean2013: 14.1 C, -1.1 C from the station mean2014: 13.9 C, -1.3 C from the station mean2015: 15.2 C, -0.1 C from the station mean2016: 16.0 C, +0.7 C from the station mean2017: 15.8 C, +0.5 C from the station mean2018: 15.2 C, -0.1 C from the station mean2019: 15.7 C, +0.5 C from the station mean2020: 15.3 C, +0.1 C from the station mean2021: 15.2 C, 0.0 C from the station mean2022: 15.1 C, -0.1 C from the station mean2023: 15.9 C, +0.6 C from the station mean2024: 16.2 C, +0.9 C from the station mean2025: 15.7 C, +0.4 C from the station mean19911995200020052010201520202025
One stripe for each of 33 complete years at Old Hickory WFO, 1991 to 2025. Blue stripes are years cooler than the station's own mean of 15.2 C (59.4 F); red stripes are warmer. The coolest year was 2014, at 13.9 C (57.1 F), and the warmest was 1998, at 16.7 C (62.0 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Old Hickory WFO as warming stripes, 1991 to 2025
YearAnnual mean temperatureDifference from the station mean
199115.6 C+0.38 C
199214.4 C-0.82 C
199314.5 C-0.79 C
199515.0 C-0.23 C
199614.7 C-0.59 C
199816.7 C+1.44 C
199916.2 C+0.98 C
200015.3 C+0.09 C
200115.0 C-0.26 C
200215.1 C-0.14 C
200314.2 C-1.03 C
200415.2 C-0.07 C
200515.5 C+0.27 C
200615.7 C+0.47 C
200716.1 C+0.89 C
200814.3 C-0.90 C
200914.1 C-1.11 C
201014.8 C-0.49 C
201115.2 C-0.03 C
201216.2 C+0.97 C
201314.1 C-1.13 C
201413.9 C-1.31 C
201515.2 C-0.07 C
201616.0 C+0.71 C
201715.8 C+0.53 C
201815.2 C-0.06 C
201915.7 C+0.46 C
202015.3 C+0.06 C
202115.2 C-0.01 C
202215.1 C-0.10 C
202315.9 C+0.65 C
202416.2 C+0.95 C
202515.7 C+0.41 C

The fitted trend in annual mean temperature here over 1991 to 2025 is 0.1 C (-0.1 to 0.4) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.2 F (-0.2 to 0.7) per decade. The slope is a straight line fitted to 33 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Old Hickory WFO
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.1 C (-0.1 to 0.4) per decade0.2 F (-0.2 to 0.7) per decade1991 to 202533Not clearly different from zero
Mean daily maximum0.25 C (-0.03 to 0.53) per decade0.4 F (-0.1 to 0.9) per decade1991 to 202533Not clearly different from zero
Mean daily minimum0.03 C (-0.22 to 0.27) per decade0.05 F (-0.39 to 0.48) per decade1991 to 202533Not clearly different from zero

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1990 to 2026
Yearly extremes at Old Hickory WFO: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)41.7 C (107.1 F)201236.1 C (97.0 F)37
Coldest night (TNn)-20.6 C (-5.1 F)1994-12.8 C (9.0 F)37
Wettest day (Rx1day)219.2 mm (8.6 in)201071.6 mm (2.8 in)37
Wettest five days (Rx5day)345.9 mm (13.6 in)2010124.7 mm (4.9 in)37
Longest dry spell (CDD)33 days199818 days37

Hottest day (TXx)

Hottest day (TXx) at Old Hickory WFO by year The hottest day of the year at Old Hickory WFO, 1990 to 2026. The record is 41.7 C (107.1 F) in 2012, marked on the chart; the median year is 36.1 C (97.0 F). 25303540451990200020102020Record: 41.7 C (107.1 F) in 2012
The hottest day of the year at Old Hickory WFO, 1990 to 2026. The record is 41.7 C (107.1 F) in 2012, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Old Hickory WFO by year
YearHottest day (TXx)
199025.6 C (78.1 F)
199136.1 C (97.0 F)
199234.4 C (93.9 F)
199336.7 C (98.1 F)
199432.8 C (91.0 F)
199536.1 C (97.0 F)
199635.6 C (96.1 F)
199737.8 C (100.0 F)
199837.8 C (100.0 F)
199938.3 C (100.9 F)
200037.2 C (99.0 F)
200133.9 C (93.0 F)
200235.0 C (95.0 F)
200333.3 C (91.9 F)
200433.9 C (93.0 F)
200536.7 C (98.1 F)
200637.8 C (100.0 F)
200740.6 C (105.1 F)
200835.6 C (96.1 F)
200933.9 C (93.0 F)
201038.3 C (100.9 F)
201138.9 C (102.0 F)
201241.7 C (107.1 F)
201333.9 C (93.0 F)
201435.0 C (95.0 F)
201535.0 C (95.0 F)
201635.0 C (95.0 F)
201735.6 C (96.1 F)
201836.1 C (97.0 F)
201936.1 C (97.0 F)
202036.1 C (97.0 F)
202135.0 C (95.0 F)
202237.2 C (99.0 F)
202336.1 C (97.0 F)
202437.2 C (99.0 F)
202536.1 C (97.0 F)
202637.8 C (100.0 F)

Coldest night (TNn)

Coldest night (TNn) at Old Hickory WFO by year The coldest night of the year at Old Hickory WFO, 1990 to 2026. The record is -20.6 C (-5.1 F) in 1994, marked on the chart; the median year is -12.8 C (9.0 F). -25-20-15-10-51990200020102020Record: -20.6 C (-5.1 F) in 1994
The coldest night of the year at Old Hickory WFO, 1990 to 2026. The record is -20.6 C (-5.1 F) in 1994, marked on the chart; the median year is -12.8 C (9.0 F).
Coldest night (TNn) at Old Hickory WFO by year
YearColdest night (TNn)
1990-12.2 C (10.0 F)
1991-12.8 C (9.0 F)
1992-12.8 C (9.0 F)
1993-12.2 C (10.0 F)
1994-20.6 C (-5.1 F)
1995-13.3 C (8.1 F)
1996-19.4 C (-2.9 F)
1997-15.0 C (5.0 F)
1998-9.4 C (15.1 F)
1999-10.0 C (14.0 F)
2000-12.2 C (10.0 F)
2001-12.2 C (10.0 F)
2002-11.1 C (12.0 F)
2003-17.2 C (1.0 F)
2004-12.8 C (9.0 F)
2005-11.1 C (12.0 F)
2006-11.7 C (10.9 F)
2007-11.7 C (10.9 F)
2008-13.3 C (8.1 F)
2009-15.6 C (3.9 F)
2010-13.9 C (7.0 F)
2011-13.3 C (8.1 F)
2012-7.2 C (19.0 F)
2013-8.9 C (16.0 F)
2014-18.3 C (-0.9 F)
2015-16.1 C (3.0 F)
2016-12.2 C (10.0 F)
2017-12.8 C (9.0 F)
2018-16.1 C (3.0 F)
2019-10.0 C (14.0 F)
2020-8.9 C (16.0 F)
2021-12.8 C (9.0 F)
2022-19.4 C (-2.9 F)
2023-6.7 C (19.9 F)
2024-18.3 C (-0.9 F)
2025-15.0 C (5.0 F)
2026-13.9 C (7.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Old Hickory WFO by year The wettest day of the year at Old Hickory WFO, 1990 to 2026. The record is 219.2 mm (8.6 in) in 2010, marked on the chart; the median year is 71.6 mm (2.8 in). 0501001502002501990200020102020Record: 219.2 mm (8.6 in) in 2010
The wettest day of the year at Old Hickory WFO, 1990 to 2026. The record is 219.2 mm (8.6 in) in 2010, marked on the chart; the median year is 71.6 mm (2.8 in).
Wettest day (Rx1day) at Old Hickory WFO by year
YearWettest day (Rx1day)
199057.4 mm (2.3 in)
199159.2 mm (2.3 in)
199256.9 mm (2.2 in)
199363.8 mm (2.5 in)
199484.1 mm (3.3 in)
199577.0 mm (3.0 in)
199664.0 mm (2.5 in)
199775.4 mm (3.0 in)
199884.3 mm (3.3 in)
199971.4 mm (2.8 in)
200082.6 mm (3.3 in)
200191.4 mm (3.6 in)
200290.7 mm (3.6 in)
2003118.4 mm (4.7 in)
200494.5 mm (3.7 in)
200564.3 mm (2.5 in)
200669.1 mm (2.7 in)
200753.3 mm (2.1 in)
200882.3 mm (3.2 in)
200986.6 mm (3.4 in)
2010219.2 mm (8.6 in)
201153.6 mm (2.1 in)
2012119.6 mm (4.7 in)
2013100.6 mm (4.0 in)
201465.0 mm (2.6 in)
201547.5 mm (1.9 in)
201688.4 mm (3.5 in)
201770.1 mm (2.8 in)
201869.1 mm (2.7 in)
201999.8 mm (3.9 in)
202071.6 mm (2.8 in)
2021112.0 mm (4.4 in)
202251.8 mm (2.0 in)
202339.4 mm (1.6 in)
202470.6 mm (2.8 in)
202573.7 mm (2.9 in)
202670.1 mm (2.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Old Hickory WFO by year The wettest five days of the year at Old Hickory WFO, 1990 to 2026. The record is 345.9 mm (13.6 in) in 2010, marked on the chart; the median year is 124.7 mm (4.9 in). 01002003004001990200020102020Record: 345.9 mm (13.6 in) in 2010
The wettest five days of the year at Old Hickory WFO, 1990 to 2026. The record is 345.9 mm (13.6 in) in 2010, marked on the chart; the median year is 124.7 mm (4.9 in).
Wettest five days (Rx5day) at Old Hickory WFO by year
YearWettest five days (Rx5day)
1990124.2 mm (4.9 in)
1991128.6 mm (5.1 in)
1992128.6 mm (5.1 in)
199392.7 mm (3.6 in)
1994117.6 mm (4.6 in)
1995142.6 mm (5.6 in)
199686.9 mm (3.4 in)
1997168.1 mm (6.6 in)
1998125.2 mm (4.9 in)
1999110.7 mm (4.4 in)
2000129.9 mm (5.1 in)
2001118.3 mm (4.7 in)
2002149.7 mm (5.9 in)
2003179.6 mm (7.1 in)
2004132.8 mm (5.2 in)
2005122.9 mm (4.8 in)
200679.2 mm (3.1 in)
200789.9 mm (3.5 in)
2008114.1 mm (4.5 in)
2009134.1 mm (5.3 in)
2010345.9 mm (13.6 in)
2011124.2 mm (4.9 in)
2012128.6 mm (5.1 in)
2013182.1 mm (7.2 in)
2014119.9 mm (4.7 in)
201588.4 mm (3.5 in)
2016153.7 mm (6.1 in)
2017126.2 mm (5.0 in)
2018124.4 mm (4.9 in)
2019157.5 mm (6.2 in)
2020114.3 mm (4.5 in)
2021150.9 mm (5.9 in)
2022110.5 mm (4.4 in)
202369.6 mm (2.7 in)
2024124.7 mm (4.9 in)
2025163.6 mm (6.4 in)
2026110.5 mm (4.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Old Hickory WFO by year The longest dry spell of the year at Old Hickory WFO, 1990 to 2026. The record is 33 days in 1998, marked on the chart; the median year is 18 days. 0102030401990200020102020Record: 33 days in 1998
The longest dry spell of the year at Old Hickory WFO, 1990 to 2026. The record is 33 days in 1998, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Old Hickory WFO by year
YearLongest dry spell (CDD)
19909 days
199118 days
199219 days
199317 days
199415 days
199521 days
199616 days
199717 days
199833 days
199916 days
200019 days
200129 days
200214 days
200313 days
200414 days
200529 days
200614 days
200723 days
200822 days
200915 days
201018 days
201116 days
201221 days
201313 days
201425 days
201520 days
201628 days
201717 days
201811 days
201926 days
202015 days
202116 days
202230 days
202321 days
202432 days
202521 days
202620 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

33 years with a frost

Across 33 years with a frost, the median last spring frost at Old Hickory WFO falls on 29 March and the median first autumn frost on 3 November, which leaves a median of 217 days between them.

Fitted over all years, the growing season changes by +2.4 days per decade at this station.

Frost dates and growing season at Old Hickory WFO
MeasureMedian, all yearsEarliest periodRecent period (1995 to 2025)Recent against earliestFitted trend
Last spring frost29 Marchn/a28 Marchn/a-0.5 days per decade
First autumn frost3 Novembern/a3 Novembern/a+1.8 days per decade
Growing days217 daysn/a218 daysn/a+2.4 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

35 years, 1991 to 2025

A day with at least 73.7 mm (2.9 in) of rain is expected about once in 2 years. A day with at least 188.6 mm (7.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Old Hickory WFO: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years73.7 mm (2.9 in)
5 years97.0 mm (3.8 in)
10 years115.0 mm (4.5 in)
25 years141.3 mm (5.6 in)
50 years163.6 mm (6.4 in)Longer than the 35 years of record
100 years188.6 mm (7.4 in)Longer than the 35 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 35 years of values from 1991 to 2025.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 219.2 mm (8.6 in) in 2010; 119.6 mm (4.7 in) in 2012; 118.4 mm (4.7 in) in 2003.

Download the Data

  • Data for Old Hickory WFO standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Old Hickory 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-16).