Daily records
Page built 2026-10-17
Data as of 2026-10-15
Search
Built 2026-10-17 (17 October 2026)

Harrison Boone Co AP Weather Records (USW00013971)

Record envelope, standing records and threshold days for Harrison Boone Co AP (USW00013971), Arkansas, United States, with 79 years of record.

Key Facts for Harrison Boone Co AP

  • Harrison Boone Co AP (USW00013971) is a weather station in Arkansas, United States at 36.27 latitude and -93.16 longitude, 418 m (1,371 ft) above sea level.
  • The station reports from 1948 to 2026, 79 years of record.
  • 1,464 records set at Harrison Boone Co AP still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Harrison Boone Co AP tied a monthly record high maximum temperature of 33.3 C (91.9 F) on 11 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Arkansas, United States, 36.27 latitude, -93.16 longitude.
  • Elevation: 418 m (1,371 ft).
  • Period of record: 1948 to 2026, 79 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

34 days at or beyond a record
Daily record high and record low at Harrison Boone Co AP, with 2026 drawn through them The band shows the record high and record low for each calendar day at Harrison Boone Co AP. The lines show the 2026 daily maximum and minimum. 34 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 Harrison Boone Co AP. The lines show the 2026 daily maximum and minimum. 34 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Harrison Boone Co AP, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan26.1 C (79.0 F)-25.0 C (-13.0 F)23.9 C (75.0 F)-16.7 C (1.9 F)
Feb30.6 C (87.1 F)-22.7 C (-8.9 F)27.8 C (82.0 F)-11.1 C (12.0 F)
Mar35.6 C (96.1 F)-22.8 C (-9.0 F)35.6 C (96.1 F)-6.7 C (19.9 F)
Apr33.3 C (91.9 F)-5.6 C (21.9 F)30.6 C (87.1 F)3.3 C (37.9 F)
May34.4 C (93.9 F)0.0 C (32.0 F)32.2 C (90.0 F)3.9 C (39.0 F)
Jun41.7 C (107.1 F)7.8 C (46.0 F)33.9 C (93.0 F)15.0 C (59.0 F)
Jul41.7 C (107.1 F)10.0 C (50.0 F)37.2 C (99.0 F)18.9 C (66.0 F)
Aug44.4 C (111.9 F)8.9 C (48.0 F)37.2 C (99.0 F)16.7 C (62.1 F)
Sep39.4 C (102.9 F)0.6 C (33.1 F)39.4 C (102.9 F)12.8 C (55.0 F)
Oct33.3 C (91.9 F)-6.1 C (21.0 F)33.3 C (91.9 F)10.0 C (50.0 F)
Nov29.4 C (84.9 F)-13.3 C (8.1 F)n/an/a
Dec29.4 C (84.9 F)-23.9 C (-11.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Harrison Boone Co AP by the year they were set 1,464 records at Harrison Boone Co AP still stand. 1989 holds the most, with 47. 02040601948: 321949: 261950: 261961: 61962: 311963: 301964: 241965: 171966: 281967: 331968: 201969: 71970: 301971: 181972: 221973: 61974: 321975: 181976: 241977: 131978: 211979: 201980: 391981: 231982: 191983: 381984: 161985: 181986: 291987: 161988: 201989: 471990: 141991: 201992: 211993: 161994: 61995: 211996: 271997: 91998: 341999: 192000: 352001: 162002: 162003: 92004: 212005: 122006: 262007: 152008: 112009: 142010: 132011: 332012: 332013: 232014: 242015: 122016: 182017: 272018: 82019: 112020: 162021: 232022: 222023: 112024: 212025: 222026: 361948196519721979198619932000200720142021
1,464 records at Harrison Boone Co AP still stand. 1989 holds the most, with 47.
Standing records at Harrison Boone Co AP by the year they were set
Year setStanding records
194832
194926
195026
19616
196231
196330
196424
196517
196628
196733
196820
19697
197030
197118
197222
19736
197432
197518
197624
197713
197821
197920
198039
198123
198219
198338
198416
198518
198629
198716
198820
198947
199014
199120
199221
199316
19946
199521
199627
19979
199834
199919
200035
200116
200216
20039
200421
200512
200626
200715
200811
200914
201013
201133
201233
201323
201424
201512
201618
201727
20188
201911
202016
202123
202222
202311
202421
202522
202636

All-Time Record Progression

4 new records
When Harrison Boone Co AP set new all-time records 4 all-time records were set at Harrison Boone Co AP between 15 February 1993 and 4 November 2024. Each dot is a new record. Record daily snowfallRecord high maximum temperatureRecord daily precipitation15 February 1993: Record daily snowfall 36.3 cm (14.3 in)2 August 2011: Record high maximum temperature 42.8 C (109.0 F)3 August 2011: Record high maximum temperature 44.4 C (111.9 F)4 November 2024: Record daily precipitation 198.9 mm (7.8 in)1995200020052010201520202025
4 all-time records were set at Harrison Boone Co AP between 15 February 1993 and 4 November 2024. Each dot is a new record.
When Harrison Boone Co AP set new all-time records
DateKindDetail
1993-02-15Record daily snowfallRecord daily snowfall 36.3 cm (14.3 in)
2011-08-02Record high maximum temperatureRecord high maximum temperature 42.8 C (109.0 F)
2011-08-03Record high maximum temperatureRecord high maximum temperature 44.4 C (111.9 F)
2024-11-04Record daily precipitationRecord daily precipitation 198.9 mm (7.8 in)

Wettest Day of Each Month

Nov: 198.9 mm (7.8 in)
Record daily precipitation for each month at Harrison Boone Co AP The wettest day on record for each calendar month at Harrison Boone Co AP. The most was 198.9 mm (7.8 in) on 4 November 2024. 050100150200 Jan: 104.6 mm (4.1 in), 1 January 1966 Jan Feb: 91.4 mm (3.6 in), 23 February 1985 Feb Mar: 121.4 mm (4.8 in), 18 March 2008 Mar Apr: 113.0 mm (4.4 in), 22 April 1996 Apr May: 103.9 mm (4.1 in), 10 May 1950 May Jun: 111.0 mm (4.4 in), 18 June 1980 Jun Jul: 92.2 mm (3.6 in), 1 July 1968 Jul Aug: 85.3 mm (3.4 in), 6 August 1999 Aug Sep: 117.6 mm (4.6 in), 26 September 1996 Sep Oct: 109.0 mm (4.3 in), 11 October 1969 Oct Nov: 198.9 mm (7.8 in), 4 November 2024 Nov Dec: 136.4 mm (5.4 in), 2 December 1982 Dec
The wettest day on record for each calendar month at Harrison Boone Co AP. The most was 198.9 mm (7.8 in) on 4 November 2024.
Record daily precipitation for each month at Harrison Boone Co AP
MonthRecord daily precipitation (mm)Date
Jan104.6 mm (4.1 in)1 January 1966
Feb91.4 mm (3.6 in)23 February 1985
Mar121.4 mm (4.8 in)18 March 2008
Apr113.0 mm (4.4 in)22 April 1996
May103.9 mm (4.1 in)10 May 1950
Jun111.0 mm (4.4 in)18 June 1980
Jul92.2 mm (3.6 in)1 July 1968
Aug85.3 mm (3.4 in)6 August 1999
Sep117.6 mm (4.6 in)26 September 1996
Oct109.0 mm (4.3 in)11 October 1969
Nov198.9 mm (7.8 in)4 November 2024
Dec136.4 mm (5.4 in)2 December 1982

Period of Record Coverage

1948 to 2026
Days with data per year at Harrison Boone Co AP 69 years of record at Harrison Boone Co AP, 1948 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1950, 1961, 2026. 1948: 366 of 366 days1949: 365 of 365 days1950: 243 of 365 days1961: 122 of 365 days1962: 365 of 365 days1963: 362 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 359 of 365 days1983: 363 of 365 days1984: 365 of 366 days1985: 364 of 365 days1986: 364 of 365 days1987: 365 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 364 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 363 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 362 of 365 days2008: 366 of 366 days2009: 361 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 364 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 285 of 365 days1950197019801990200020102020
69 years of record at Harrison Boone Co AP, 1948 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1950, 1961, 2026.
Days with data per year at Harrison Boone Co AP
YearDays with dataShare of yearComplete
1948366100%Yes
1949365100%Yes
195024367%No
196112233%No
1962365100%Yes
196336299%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
198235998%Yes
198336399%Yes
1984365100%Yes
1985364100%Yes
1986364100%Yes
1987365100%Yes
1988366100%Yes
1989365100%Yes
1990365100%Yes
1991365100%Yes
1992366100%Yes
1993365100%Yes
1994365100%Yes
1995364100%Yes
1996366100%Yes
1997365100%Yes
199836399%Yes
1999365100%Yes
2000366100%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
2005365100%Yes
2006365100%Yes
200736299%Yes
2008366100%Yes
200936199%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022364100%Yes
2023365100%Yes
2024366100%Yes
2025365100%Yes
202628578%No

Latest Records

20
Latest records at Harrison Boone Co AP
DateStationRecordValueBeat old record byOld record stoodSignificance
11 October 2026Harrison Boone Co AP, USmonthly high max (Tie, Provisional)33.3 C (91.9 F)tie63 years8 of 100 (Routine)
9 October 2026Harrison Boone Co AP, USdaily high max (Tie, Provisional)31.1 C (88.0 F)tie60 years6 of 100 (Routine)
8 October 2026Harrison Boone Co AP, USdaily high max (Provisional)31.7 C (89.1 F)0.6 C (1.1 F)63 years26 of 100 (Routine)
7 October 2026Harrison Boone Co AP, USdaily high max (Tie, Provisional)32.2 C (90.0 F)tie63 years6 of 100 (Routine)
1 October 2026Harrison Boone Co AP, USdaily high min (Provisional)20.6 C (69.1 F)1.2 C (2.2 F)7 years11 of 100 (Routine)
30 September 2026Harrison Boone Co AP, USdaily high min (Tie, Provisional)18.9 C (66.0 F)tie55 years5 of 100 (Routine)
20 September 2026Harrison Boone Co AP, USdaily high max (Tie, Provisional)35.6 C (96.1 F)tie1 year1 of 100 (Routine)
19 September 2026Harrison Boone Co AP, USdaily high max (Provisional)35.6 C (96.1 F)1.7 C (3.1 F)53 years26 of 100 (Routine)
18 September 2026Harrison Boone Co AP, USdaily high max (Provisional)36.1 C (97.0 F)1.7 C (3.1 F)53 years26 of 100 (Routine)
18 September 2026Harrison Boone Co AP, USdaily high min (Tie, Provisional)22.2 C (72.0 F)tie48 years5 of 100 (Routine)
17 September 2026Harrison Boone Co AP, USdaily high min (Provisional)22.8 C (73.0 F)0.6 C (1.1 F)48 years22 of 100 (Routine)
17 September 2026Harrison Boone Co AP, USdaily high max (Provisional)37.8 C (100.0 F)2.8 C (5.0 F)0 years13 of 100 (Routine)
16 September 2026Harrison Boone Co AP, USdaily high min (Provisional)24.4 C (75.9 F)2.7 C (4.9 F)48 years27 of 100 (Routine)
16 September 2026Harrison Boone Co AP, USdaily high max (Tie, Provisional)35.6 C (96.1 F)tie45 years5 of 100 (Routine)
15 September 2026Harrison Boone Co AP, USdaily high max (Provisional)37.2 C (99.0 F)3.9 C (7.0 F)7 years17 of 100 (Routine)
15 September 2026Harrison Boone Co AP, USdaily high min (Provisional)22.8 C (73.0 F)1.7 C (3.1 F)21 years16 of 100 (Routine)
14 September 2026Harrison Boone Co AP, USdaily high max (Tie, Provisional)36.1 C (97.0 F)tie55 years5 of 100 (Routine)
10 September 2026Harrison Boone Co AP, USdaily high min (Provisional)22.8 C (73.0 F)0.6 C (1.1 F)43 years20 of 100 (Routine)
9 September 2026Harrison Boone Co AP, USmonthly high min (Provisional)26.7 C (80.1 F)1.7 C (3.1 F)46 years33 of 100 (Routine)
9 September 2026Harrison Boone Co AP, USdaily high max (Provisional)38.3 C (100.9 F)3.9 C (7.0 F)12 years18 of 100 (Routine)

Climate Trend

66 complete years, 1948 to 2025
Annual mean temperature at Harrison Boone Co AP as warming stripes, 1948 to 2025 One stripe for each of 66 complete years at Harrison Boone Co AP, 1948 to 2025. Blue stripes are years cooler than the station's own mean of 14.5 C (58.1 F); red stripes are warmer. The coolest year was 1979, at 12.9 C (55.1 F), and the warmest was 2012, at 16.5 C (61.7 F). The strongest colour marks a difference of 2.0 C (3.6 F). 1948: 13.5 C, -1.1 C from the station mean1949: 14.5 C, 0.0 C from the station mean1962: 14.2 C, -0.3 C from the station mean1963: 14.8 C, +0.3 C from the station mean1964: 14.7 C, +0.2 C from the station mean1965: 14.7 C, +0.2 C from the station mean1966: 13.7 C, -0.8 C from the station mean1967: 14.0 C, -0.5 C from the station mean1968: 13.4 C, -1.1 C from the station mean1969: 13.9 C, -0.7 C from the station mean1970: 13.8 C, -0.7 C from the station mean1971: 14.5 C, 0.0 C from the station mean1972: 14.1 C, -0.5 C from the station mean1973: 14.4 C, -0.1 C from the station mean1974: 14.1 C, -0.4 C from the station mean1975: 14.0 C, -0.5 C from the station mean1976: 13.4 C, -1.1 C from the station mean1977: 14.5 C, 0.0 C from the station mean1978: 13.4 C, -1.1 C from the station mean1979: 12.9 C, -1.6 C from the station mean1980: 14.7 C, +0.2 C from the station mean1981: 14.3 C, -0.2 C from the station mean1982: 14.1 C, -0.5 C from the station mean1983: 13.6 C, -0.9 C from the station mean1984: 14.5 C, 0.0 C from the station mean1985: 14.0 C, -0.5 C from the station mean1986: 15.4 C, +0.9 C from the station mean1987: 15.1 C, +0.6 C from the station mean1988: 14.3 C, -0.2 C from the station mean1989: 13.5 C, -1.0 C from the station mean1990: 15.1 C, +0.6 C from the station mean1991: 14.9 C, +0.4 C from the station mean1992: 14.3 C, -0.2 C from the station mean1993: 13.6 C, -0.9 C from the station mean1994: 14.7 C, +0.2 C from the station mean1995: 14.6 C, +0.1 C from the station mean1996: 14.0 C, -0.5 C from the station mean1997: 14.2 C, -0.3 C from the station mean1998: 16.3 C, +1.8 C from the station mean1999: 15.6 C, +1.1 C from the station mean2000: 14.5 C, 0.0 C from the station mean2001: 14.6 C, +0.1 C from the station mean2002: 14.2 C, -0.3 C from the station mean2003: 14.1 C, -0.4 C from the station mean2004: 14.5 C, 0.0 C from the station mean2005: 15.2 C, +0.7 C from the station mean2006: 15.5 C, +1.0 C from the station mean2007: 15.2 C, +0.7 C from the station mean2008: 13.7 C, -0.8 C from the station mean2009: 14.0 C, -0.5 C from the station mean2010: 14.9 C, +0.4 C from the station mean2011: 15.1 C, +0.6 C from the station mean2012: 16.5 C, +2.0 C from the station mean2013: 13.8 C, -0.7 C from the station mean2014: 13.5 C, -1.0 C from the station mean2015: 14.8 C, +0.3 C from the station mean2016: 15.6 C, +1.1 C from the station mean2017: 15.6 C, +1.1 C from the station mean2018: 14.8 C, +0.3 C from the station mean2019: 14.7 C, +0.2 C from the station mean2020: 14.8 C, +0.3 C from the station mean2021: 15.0 C, +0.5 C from the station mean2022: 14.7 C, +0.2 C from the station mean2023: 15.6 C, +1.1 C from the station mean2024: 16.0 C, +1.5 C from the station mean2025: 15.7 C, +1.2 C from the station mean19481960197019801990200020102020
One stripe for each of 66 complete years at Harrison Boone Co AP, 1948 to 2025. Blue stripes are years cooler than the station's own mean of 14.5 C (58.1 F); red stripes are warmer. The coolest year was 1979, at 12.9 C (55.1 F), and the warmest was 2012, at 16.5 C (61.7 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Harrison Boone Co AP as warming stripes, 1948 to 2025
YearAnnual mean temperatureDifference from the station mean
194813.5 C-1.06 C
194914.5 C+0.01 C
196214.2 C-0.33 C
196314.8 C+0.29 C
196414.7 C+0.20 C
196514.7 C+0.22 C
196613.7 C-0.85 C
196714.0 C-0.51 C
196813.4 C-1.14 C
196913.9 C-0.66 C
197013.8 C-0.72 C
197114.5 C-0.02 C
197214.1 C-0.46 C
197314.4 C-0.13 C
197414.1 C-0.37 C
197514.0 C-0.52 C
197613.4 C-1.09 C
197714.5 C+0.00 C
197813.4 C-1.13 C
197912.9 C-1.65 C
198014.7 C+0.15 C
198114.3 C-0.25 C
198214.1 C-0.46 C
198313.6 C-0.88 C
198414.5 C-0.02 C
198514.0 C-0.48 C
198615.4 C+0.86 C
198715.1 C+0.61 C
198814.3 C-0.25 C
198913.5 C-1.01 C
199015.1 C+0.62 C
199114.9 C+0.37 C
199214.3 C-0.22 C
199313.6 C-0.95 C
199414.7 C+0.19 C
199514.6 C+0.12 C
199614.0 C-0.54 C
199714.2 C-0.32 C
199816.3 C+1.75 C
199915.6 C+1.13 C
200014.5 C+0.03 C
200114.6 C+0.08 C
200214.2 C-0.33 C
200314.1 C-0.44 C
200414.5 C-0.02 C
200515.2 C+0.66 C
200615.5 C+1.03 C
200715.2 C+0.70 C
200813.7 C-0.80 C
200914.0 C-0.52 C
201014.9 C+0.35 C
201115.1 C+0.57 C
201216.5 C+1.98 C
201313.8 C-0.68 C
201413.5 C-1.02 C
201514.8 C+0.26 C
201615.6 C+1.11 C
201715.6 C+1.08 C
201814.8 C+0.28 C
201914.7 C+0.16 C
202014.8 C+0.33 C
202115.0 C+0.45 C
202214.7 C+0.19 C
202315.6 C+1.07 C
202416.0 C+1.51 C
202515.7 C+1.16 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1948 to 2025. In Fahrenheit: 0.3 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 66 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Harrison Boone Co AP
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.2 C (0.1 to 0.3) per decade0.3 F (0.2 to 0.5) per decade1948 to 202566Rise
Mean daily maximum0.2 C (0.1 to 0.3) per decade0.3 F (0.1 to 0.5) per decade1948 to 202566Rise
Mean daily minimum0.2 C (0.1 to 0.3) per decade0.4 F (0.2 to 0.5) per decade1948 to 202566Rise

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

1948 to 2026
Yearly extremes at Harrison Boone Co AP: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)44.4 C (111.9 F)201136.7 C (98.1 F)69
Coldest night (TNn)-25.0 C (-13.0 F)1985-16.6 C (2.1 F)69
Wettest day (Rx1day)198.9 mm (7.8 in)202478.0 mm (3.1 in)69
Wettest five days (Rx5day)326.4 mm (12.9 in)2024124.5 mm (4.9 in)69
Longest dry spell (CDD)44 days200021 days69

Hottest day (TXx)

Hottest day (TXx) at Harrison Boone Co AP by year The hottest day of the year at Harrison Boone Co AP, 1948 to 2026. The record is 44.4 C (111.9 F) in 2011, marked on the chart; the median year is 36.7 C (98.1 F). 303540451960198020002020Record: 44.4 C (111.9 F) in 2011
The hottest day of the year at Harrison Boone Co AP, 1948 to 2026. The record is 44.4 C (111.9 F) in 2011, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Harrison Boone Co AP by year
YearHottest day (TXx)
194834.4 C (93.9 F)
194934.4 C (93.9 F)
195034.4 C (93.9 F)
196132.2 C (90.0 F)
196236.1 C (97.0 F)
196338.3 C (100.9 F)
196439.4 C (102.9 F)
196535.6 C (96.1 F)
196638.3 C (100.9 F)
196735.0 C (95.0 F)
196835.0 C (95.0 F)
196938.9 C (102.0 F)
197037.8 C (100.0 F)
197136.1 C (97.0 F)
197236.7 C (98.1 F)
197336.7 C (98.1 F)
197438.9 C (102.0 F)
197536.1 C (97.0 F)
197635.0 C (95.0 F)
197736.1 C (97.0 F)
197837.2 C (99.0 F)
197934.4 C (93.9 F)
198040.0 C (104.0 F)
198136.1 C (97.0 F)
198235.6 C (96.1 F)
198337.2 C (99.0 F)
198440.6 C (105.1 F)
198537.2 C (99.0 F)
198641.7 C (107.1 F)
198737.2 C (99.0 F)
198837.8 C (100.0 F)
198935.0 C (95.0 F)
199037.8 C (100.0 F)
199137.2 C (99.0 F)
199233.9 C (93.0 F)
199336.7 C (98.1 F)
199435.0 C (95.0 F)
199539.4 C (102.9 F)
199635.6 C (96.1 F)
199738.9 C (102.0 F)
199839.4 C (102.9 F)
199938.3 C (100.9 F)
200039.4 C (102.9 F)
200135.0 C (95.0 F)
200235.0 C (95.0 F)
200337.2 C (99.0 F)
200433.3 C (91.9 F)
200538.3 C (100.9 F)
200640.0 C (104.0 F)
200738.9 C (102.0 F)
200835.6 C (96.1 F)
200935.0 C (95.0 F)
201037.8 C (100.0 F)
201144.4 C (111.9 F)
201241.7 C (107.1 F)
201337.8 C (100.0 F)
201435.6 C (96.1 F)
201536.1 C (97.0 F)
201636.1 C (97.0 F)
201734.4 C (93.9 F)
201837.2 C (99.0 F)
201935.6 C (96.1 F)
202035.0 C (95.0 F)
202135.6 C (96.1 F)
202238.9 C (102.0 F)
202337.2 C (99.0 F)
202436.7 C (98.1 F)
202537.8 C (100.0 F)
202639.4 C (102.9 F)

Coldest night (TNn)

Coldest night (TNn) at Harrison Boone Co AP by year The coldest night of the year at Harrison Boone Co AP, 1948 to 2026. The record is -25.0 C (-13.0 F) in 1985, marked on the chart; the median year is -16.6 C (2.1 F). -25-20-15-10-51960198020002020Record: -25.0 C (-13.0 F) in 1985
The coldest night of the year at Harrison Boone Co AP, 1948 to 2026. The record is -25.0 C (-13.0 F) in 1985, marked on the chart; the median year is -16.6 C (2.1 F).
Coldest night (TNn) at Harrison Boone Co AP by year
YearColdest night (TNn)
1948-22.8 C (-9.0 F)
1949-16.1 C (3.0 F)
1950-10.6 C (12.9 F)
1961-12.8 C (9.0 F)
1962-21.1 C (-6.0 F)
1963-19.4 C (-2.9 F)
1964-17.2 C (1.0 F)
1965-15.0 C (5.0 F)
1966-20.0 C (-4.0 F)
1967-15.0 C (5.0 F)
1968-18.9 C (-2.0 F)
1969-15.0 C (5.0 F)
1970-21.1 C (-6.0 F)
1971-18.9 C (-2.0 F)
1972-17.8 C (0.0 F)
1973-16.7 C (1.9 F)
1974-17.8 C (0.0 F)
1975-13.3 C (8.1 F)
1976-18.9 C (-2.0 F)
1977-21.1 C (-6.0 F)
1978-16.1 C (3.0 F)
1979-20.6 C (-5.1 F)
1980-16.1 C (3.0 F)
1981-21.1 C (-6.0 F)
1982-21.1 C (-6.0 F)
1983-22.8 C (-9.0 F)
1984-19.4 C (-2.9 F)
1985-25.0 C (-13.0 F)
1986-15.6 C (3.9 F)
1987-8.9 C (16.0 F)
1988-17.8 C (0.0 F)
1989-23.9 C (-11.0 F)
1990-16.1 C (3.0 F)
1991-12.2 C (10.0 F)
1992-11.7 C (10.9 F)
1993-16.7 C (1.9 F)
1994-15.6 C (3.9 F)
1995-15.0 C (5.0 F)
1996-20.6 C (-5.1 F)
1997-16.7 C (1.9 F)
1998-13.3 C (8.1 F)
1999-16.1 C (3.0 F)
2000-16.7 C (1.9 F)
2001-14.4 C (6.1 F)
2002-15.6 C (3.9 F)
2003-15.6 C (3.9 F)
2004-14.4 C (6.1 F)
2005-12.8 C (9.0 F)
2006-13.9 C (7.0 F)
2007-13.3 C (8.1 F)
2008-15.6 C (3.9 F)
2009-13.9 C (7.0 F)
2010-16.7 C (1.9 F)
2011-18.9 C (-2.0 F)
2012-11.1 C (12.0 F)
2013-14.9 C (5.2 F)
2014-18.8 C (-1.8 F)
2015-16.6 C (2.1 F)
2016-14.9 C (5.2 F)
2017-13.8 C (7.2 F)
2018-17.7 C (0.1 F)
2019-13.8 C (7.2 F)
2020-11.6 C (11.1 F)
2021-22.7 C (-8.9 F)
2022-21.0 C (-5.8 F)
2023-7.7 C (18.1 F)
2024-19.9 C (-3.8 F)
2025-19.3 C (-2.7 F)
2026-16.7 C (1.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Harrison Boone Co AP by year The wettest day of the year at Harrison Boone Co AP, 1948 to 2026. The record is 198.9 mm (7.8 in) in 2024, marked on the chart; the median year is 78.0 mm (3.1 in). 0501001502001960198020002020Record: 198.9 mm (7.8 in) in 2024
The wettest day of the year at Harrison Boone Co AP, 1948 to 2026. The record is 198.9 mm (7.8 in) in 2024, marked on the chart; the median year is 78.0 mm (3.1 in).
Wettest day (Rx1day) at Harrison Boone Co AP by year
YearWettest day (Rx1day)
194864.3 mm (2.5 in)
194973.4 mm (2.9 in)
1950103.9 mm (4.1 in)
196130.7 mm (1.2 in)
196284.6 mm (3.3 in)
196366.8 mm (2.6 in)
196480.5 mm (3.2 in)
196564.0 mm (2.5 in)
1966104.6 mm (4.1 in)
196773.9 mm (2.9 in)
196897.0 mm (3.8 in)
1969109.0 mm (4.3 in)
197095.8 mm (3.8 in)
197158.4 mm (2.3 in)
197254.6 mm (2.1 in)
1973141.5 mm (5.6 in)
197491.4 mm (3.6 in)
197594.2 mm (3.7 in)
1976101.1 mm (4.0 in)
197779.0 mm (3.1 in)
197866.0 mm (2.6 in)
197954.9 mm (2.2 in)
1980111.0 mm (4.4 in)
198162.5 mm (2.5 in)
1982136.4 mm (5.4 in)
198358.9 mm (2.3 in)
198462.5 mm (2.5 in)
1985103.9 mm (4.1 in)
198649.3 mm (1.9 in)
198755.9 mm (2.2 in)
1988108.2 mm (4.3 in)
198962.0 mm (2.4 in)
199082.0 mm (3.2 in)
199177.0 mm (3.0 in)
199266.3 mm (2.6 in)
1993105.2 mm (4.1 in)
199487.9 mm (3.5 in)
199568.1 mm (2.7 in)
1996117.6 mm (4.6 in)
199754.4 mm (2.1 in)
199860.2 mm (2.4 in)
199985.3 mm (3.4 in)
200080.8 mm (3.2 in)
200171.4 mm (2.8 in)
200277.2 mm (3.0 in)
200355.1 mm (2.2 in)
200466.8 mm (2.6 in)
200549.8 mm (2.0 in)
200678.0 mm (3.1 in)
200746.2 mm (1.8 in)
2008121.4 mm (4.8 in)
2009101.9 mm (4.0 in)
2010115.8 mm (4.6 in)
2011102.6 mm (4.0 in)
201266.5 mm (2.6 in)
201378.5 mm (3.1 in)
201473.7 mm (2.9 in)
2015111.3 mm (4.4 in)
201654.9 mm (2.2 in)
201790.2 mm (3.6 in)
201871.9 mm (2.8 in)
201993.5 mm (3.7 in)
202094.2 mm (3.7 in)
202171.1 mm (2.8 in)
202278.2 mm (3.1 in)
202366.3 mm (2.6 in)
2024198.9 mm (7.8 in)
202568.1 mm (2.7 in)
202686.9 mm (3.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Harrison Boone Co AP by year The wettest five days of the year at Harrison Boone Co AP, 1948 to 2026. The record is 326.4 mm (12.9 in) in 2024, marked on the chart; the median year is 124.5 mm (4.9 in). 01002003004001960198020002020Record: 326.4 mm (12.9 in) in 2024
The wettest five days of the year at Harrison Boone Co AP, 1948 to 2026. The record is 326.4 mm (12.9 in) in 2024, marked on the chart; the median year is 124.5 mm (4.9 in).
Wettest five days (Rx5day) at Harrison Boone Co AP by year
YearWettest five days (Rx5day)
1948104.2 mm (4.1 in)
1949160.7 mm (6.3 in)
1950186.8 mm (7.4 in)
196158.9 mm (2.3 in)
1962133.1 mm (5.2 in)
196399.1 mm (3.9 in)
1964123.7 mm (4.9 in)
1965111.0 mm (4.4 in)
1966129.2 mm (5.1 in)
1967136.3 mm (5.4 in)
1968142.3 mm (5.6 in)
1969188.0 mm (7.4 in)
1970166.4 mm (6.6 in)
1971174.8 mm (6.9 in)
1972121.4 mm (4.8 in)
1973227.6 mm (9.0 in)
1974156.7 mm (6.2 in)
197594.5 mm (3.7 in)
1976127.0 mm (5.0 in)
1977157.7 mm (6.2 in)
1978100.3 mm (3.9 in)
197971.6 mm (2.8 in)
1980218.5 mm (8.6 in)
1981118.4 mm (4.7 in)
1982237.2 mm (9.3 in)
198393.2 mm (3.7 in)
1984117.7 mm (4.6 in)
1985181.8 mm (7.2 in)
198682.1 mm (3.2 in)
198794.7 mm (3.7 in)
1988144.5 mm (5.7 in)
1989109.6 mm (4.3 in)
1990166.9 mm (6.6 in)
1991165.6 mm (6.5 in)
1992100.8 mm (4.0 in)
1993112.6 mm (4.4 in)
1994141.2 mm (5.6 in)
199580.3 mm (3.2 in)
1996191.2 mm (7.5 in)
199766.6 mm (2.6 in)
1998109.2 mm (4.3 in)
199988.2 mm (3.5 in)
2000140.5 mm (5.5 in)
2001112.0 mm (4.4 in)
2002109.3 mm (4.3 in)
200392.0 mm (3.6 in)
2004173.0 mm (6.8 in)
200575.9 mm (3.0 in)
2006124.5 mm (4.9 in)
200773.2 mm (2.9 in)
2008149.1 mm (5.9 in)
2009163.9 mm (6.5 in)
2010175.8 mm (6.9 in)
2011282.4 mm (11.1 in)
2012104.9 mm (4.1 in)
2013118.6 mm (4.7 in)
2014100.1 mm (3.9 in)
2015157.1 mm (6.2 in)
2016107.5 mm (4.2 in)
2017164.3 mm (6.5 in)
2018124.8 mm (4.9 in)
2019128.7 mm (5.1 in)
2020197.9 mm (7.8 in)
2021107.5 mm (4.2 in)
2022115.5 mm (4.5 in)
202392.8 mm (3.7 in)
2024326.4 mm (12.9 in)
2025104.7 mm (4.1 in)
2026136.9 mm (5.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Harrison Boone Co AP by year The longest dry spell of the year at Harrison Boone Co AP, 1948 to 2026. The record is 44 days in 2000, marked on the chart; the median year is 21 days. 10203040501960198020002020Record: 44 days in 2000
The longest dry spell of the year at Harrison Boone Co AP, 1948 to 2026. The record is 44 days in 2000, marked on the chart; the median year is 21 days.
Longest dry spell (CDD) at Harrison Boone Co AP by year
YearLongest dry spell (CDD)
194830 days
194920 days
195015 days
196116 days
196221 days
196333 days
196423 days
196516 days
196625 days
196719 days
196815 days
196922 days
197023 days
197117 days
197220 days
197320 days
197420 days
197522 days
197625 days
197717 days
197822 days
197923 days
198033 days
198123 days
198222 days
198325 days
198415 days
198522 days
198615 days
198719 days
198815 days
198923 days
199017 days
199115 days
199229 days
199317 days
199416 days
199535 days
199617 days
199720 days
199831 days
199921 days
200044 days
200120 days
200218 days
200321 days
200426 days
200521 days
200635 days
200740 days
200824 days
200916 days
201028 days
201125 days
201225 days
201334 days
201425 days
201527 days
201620 days
201725 days
201820 days
201913 days
202020 days
202116 days
202239 days
202320 days
202444 days
202522 days
202621 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

66 years with a frost

Across 66 years with a frost, the median last spring frost at Harrison Boone Co AP falls on 5 April and the median first autumn frost on 27 October, which leaves a median of 205 days between them.

In 1996 to 2025 the median growing season was 208 days. That is 4 days more than in 1948 to 1989.

Fitted over all years, the growing season changes by +0.2 days per decade at this station.

Frost dates and growing season at Harrison Boone Co AP
MeasureMedian, all yearsEarliest period (1948 to 1989)Recent period (1996 to 2025)Recent against earliestFitted trend
Last spring frost5 April5 April7 April2 days later+0.5 days per decade
First autumn frost27 October27 October29 October2 days later+0.7 days per decade
Growing days205 days204 days208 days4 days more+0.2 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

66 years, 1948 to 2025

A day with at least 77.3 mm (3.0 in) of rain is expected about once in 2 years. A day with at least 172.3 mm (6.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Harrison Boone Co AP: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years77.3 mm (3.0 in)
5 years99.8 mm (3.9 in)
10 years115.8 mm (4.6 in)
25 years137.4 mm (5.4 in)
50 years154.4 mm (6.1 in)
100 years172.3 mm (6.8 in)Longer than the 66 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, 66 years of values from 1948 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: 198.9 mm (7.8 in) in 2024; 141.5 mm (5.6 in) in 1973; 136.4 mm (5.4 in) in 1982.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Climate Twins

2011 to 2025 against 1961 to 1990

Over 2011 to 2025, Harrison Boone Co AP had a mean temperature of 15.1 C (59.1 F) and 1,167.6 mm (46.0 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Concord (United States, 1,138 km away), Nashville Intl AP (United States, 581 km away) and Jackson (United States, 1,408 km away).

Climate twins of Harrison Boone Co AP: stations whose 1961 to 1990 climate is closest to its 2011 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
ConcordUnited States1,138 km (707 mi)15.3 C (59.5 F)1,159.7 mm (45.7 in)0.48
Nashville Intl APUnited States581 km (361 mi)15.0 C (59.0 F)1,202.2 mm (47.3 in)0.50
JacksonUnited States1,408 km (875 mi)15.2 C (59.3 F)1,141.2 mm (44.9 in)0.53

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

  • Data for Harrison Boone Co AP standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Harrison Boone Co AP 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-15).