Built 2026-10-17 (17 October 2026)

Waynesville Weather Records (USC00338870)

Record envelope, standing records and threshold days for Waynesville (USC00338870), Ohio, United States, with 36 years of record.

Key Facts for Waynesville

  • Waynesville (USC00338870) is a weather station in Ohio, United States at 39.53 latitude and -84.07 longitude, 213 m (700 ft) above sea level.
  • The station reports from 1893 to 1928, 36 years of record.
  • 1,464 records set at Waynesville still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Waynesville set a daily record precipitation of 3.6 mm (0.14 in) on 29 February 1928.

About the Station

  • Location: Ohio, United States, 39.53 latitude, -84.07 longitude.
  • Elevation: 213 m (700 ft).
  • Period of record: 1893 to 1928, 36 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Waynesville, with 2026 drawn through them The band shows the record high and record low for each calendar day at Waynesville. The lines show the 2026 daily maximum and minimum. 0 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 Waynesville. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Waynesville, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan22.2 C (72.0 F)-27.8 C (-18.0 F)n/an/a
Feb20.6 C (69.1 F)-30.6 C (-23.1 F)n/an/a
Mar30.6 C (87.1 F)-17.8 C (0.0 F)n/an/a
Apr32.2 C (90.0 F)-9.4 C (15.1 F)n/an/a
May34.4 C (93.9 F)-2.8 C (27.0 F)n/an/a
Jun36.1 C (97.0 F)2.8 C (37.0 F)n/an/a
Jul40.6 C (105.1 F)8.3 C (46.9 F)n/an/a
Aug38.3 C (100.9 F)5.0 C (41.0 F)n/an/a
Sep36.7 C (98.1 F)-0.6 C (30.9 F)n/an/a
Oct33.3 C (91.9 F)-8.9 C (16.0 F)n/an/a
Nov24.4 C (75.9 F)-13.9 C (7.0 F)n/an/a
Dec20.0 C (68.0 F)-26.1 C (-15.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Waynesville by the year they were set 1,464 records at Waynesville still stand. 1917 holds the most, with 64. 0204060801894: 21895: 241896: 241897: 431898: 581899: 571900: 461901: 611902: 491903: 541904: 361905: 271906: 471907: 491908: 391909: 521910: 351911: 471912: 511913: 531914: 581915: 291916: 411917: 641918: 611919: 281920: 381921: 371922: 391923: 351924: 401925: 501926: 231927: 601928: 7189418981902190619101914191819221926
1,464 records at Waynesville still stand. 1917 holds the most, with 64.
Standing records at Waynesville by the year they were set
Year setStanding records
18942
189524
189624
189743
189858
189957
190046
190161
190249
190354
190436
190527
190647
190749
190839
190952
191035
191147
191251
191353
191458
191529
191641
191764
191861
191928
192038
192137
192239
192335
192440
192550
192623
192760
19287

Wettest Day of Each Month

Oct: 111.3 mm (4.4 in)
Record daily precipitation for each month at Waynesville The wettest day on record for each calendar month at Waynesville. The most was 111.3 mm (4.4 in) on 6 October 1910. 050100150 Jan: 46.5 mm (1.8 in), 5 January 1917 Jan Feb: 48.3 mm (1.9 in), 23 February 1909 Feb Mar: 91.4 mm (3.6 in), 5 March 1897 Mar Apr: 47.0 mm (1.9 in), 26 April 1912 Apr May: 61.0 mm (2.4 in), 12 May 1920 May Jun: 64.8 mm (2.6 in), 21 June 1905 Jun Jul: 108.2 mm (4.3 in), 27 July 1926 Jul Aug: 73.7 mm (2.9 in), 11 August 1905 Aug Sep: 53.3 mm (2.1 in), 3 September 1922 Sep Oct: 111.3 mm (4.4 in), 6 October 1910 Oct Nov: 44.5 mm (1.8 in), 2 November 1897 Nov Dec: 49.3 mm (1.9 in), 24 December 1921 Dec
The wettest day on record for each calendar month at Waynesville. The most was 111.3 mm (4.4 in) on 6 October 1910.
Record daily precipitation for each month at Waynesville
MonthRecord daily precipitation (mm)Date
Jan46.5 mm (1.8 in)5 January 1917
Feb48.3 mm (1.9 in)23 February 1909
Mar91.4 mm (3.6 in)5 March 1897
Apr47.0 mm (1.9 in)26 April 1912
May61.0 mm (2.4 in)12 May 1920
Jun64.8 mm (2.6 in)21 June 1905
Jul108.2 mm (4.3 in)27 July 1926
Aug73.7 mm (2.9 in)11 August 1905
Sep53.3 mm (2.1 in)3 September 1922
Oct111.3 mm (4.4 in)6 October 1910
Nov44.5 mm (1.8 in)2 November 1897
Dec49.3 mm (1.9 in)24 December 1921

Period of Record Coverage

1894 to 1928
Days with data per year at Waynesville 35 years of record at Waynesville, 1894 to 1928. 6 years have data for under 90 percent of days and are left out of rankings: 1894, 1895, 1896, 1897, 1899, 1928. 1894: 1 of 365 days1895: 79 of 365 days1896: 146 of 366 days1897: 281 of 365 days1898: 346 of 365 days1899: 290 of 365 days1900: 356 of 365 days1901: 344 of 365 days1902: 347 of 365 days1903: 354 of 365 days1904: 362 of 366 days1905: 359 of 365 days1906: 354 of 365 days1907: 354 of 365 days1908: 360 of 366 days1909: 352 of 365 days1910: 357 of 365 days1911: 352 of 365 days1912: 355 of 366 days1913: 364 of 365 days1914: 364 of 365 days1915: 356 of 365 days1916: 366 of 366 days1917: 358 of 365 days1918: 361 of 365 days1919: 358 of 365 days1920: 363 of 366 days1921: 360 of 365 days1922: 355 of 365 days1923: 355 of 365 days1924: 353 of 366 days1925: 354 of 365 days1926: 351 of 365 days1927: 353 of 365 days1928: 59 of 366 days1895190019051910191519201925
35 years of record at Waynesville, 1894 to 1928. 6 years have data for under 90 percent of days and are left out of rankings: 1894, 1895, 1896, 1897, 1899, 1928.
Days with data per year at Waynesville
YearDays with dataShare of yearComplete
189410%No
18957922%No
189614640%No
189728177%No
189834695%Yes
189929079%No
190035698%Yes
190134494%Yes
190234795%Yes
190335497%Yes
190436299%Yes
190535998%Yes
190635497%Yes
190735497%Yes
190836098%Yes
190935296%Yes
191035798%Yes
191135296%Yes
191235597%Yes
1913364100%Yes
1914364100%Yes
191535698%Yes
1916366100%Yes
191735898%Yes
191836199%Yes
191935898%Yes
192036399%Yes
192136099%Yes
192235597%Yes
192335597%Yes
192435396%Yes
192535497%Yes
192635196%Yes
192735397%Yes
19285916%No

Latest Records

20
Latest records at Waynesville
DateStationRecordValueBeat old record byOld record stoodSignificance
29 February 1928Waynesville, USdaily rain3.6 mm (0.14 in)3.6 mm (0.14 in)24 years14 of 100 (Routine)
4 February 1928Waynesville, USdaily rain14.7 mm (0.6 in)2.0 mm (0.08 in)27 years13 of 100 (Routine)
17 January 1928Waynesville, USdaily high max14.4 C (57.9 F)1.6 C (2.9 F)30 years14 of 100 (Routine)
16 January 1928Waynesville, USdaily high max14.4 C (57.9 F)2.2 C (4.0 F)12 years9 of 100 (Routine)
14 January 1928Waynesville, USdaily high max17.8 C (64.0 F)2.2 C (4.0 F)20 years12 of 100 (Routine)
2 January 1928Waynesville, USdaily low max-12.8 C (9.0 F)3.4 C (6.1 F)8 years10 of 100 (Routine)
2 January 1928Waynesville, USdaily low min-18.9 C (-2.0 F)2.2 C (4.0 F)8 years8 of 100 (Routine)
1 January 1928Waynesville, USdaily low max-10.0 C (14.0 F)0.6 C (1.1 F)27 years11 of 100 (Routine)
1 January 1928Waynesville, USdaily low min-20.0 C (-4.0 F)1.1 C (2.0 F)9 years6 of 100 (Routine)
30 December 1927Waynesville, USdaily high min5.0 C (41.0 F)1.7 C (3.1 F)20 years11 of 100 (Routine)
15 December 1927Waynesville, USdaily high min5.6 C (42.1 F)2.8 C (5.0 F)18 years12 of 100 (Routine)
13 December 1927Waynesville, USmonthly high min12.8 C (55.0 F)0.6 C (1.1 F)16 years17 of 100 (Routine)
12 December 1927Waynesville, USdaily high min5.6 C (42.1 F)1.7 C (3.1 F)16 years9 of 100 (Routine)
30 November 1927Waynesville, USdaily rain38.6 mm (1.5 in)29.7 mm (1.2 in)13 years39 of 100 (Notable)
30 November 1927Waynesville, USdaily high max18.3 C (64.9 F)1.1 C (2.0 F)18 years9 of 100 (Routine)
29 November 1927Waynesville, USdaily high max21.1 C (70.0 F)5.5 C (9.9 F)21 years18 of 100 (Routine)
28 November 1927Waynesville, USdaily high min13.9 C (57.0 F)5.6 C (10.1 F)13 years17 of 100 (Routine)
28 November 1927Waynesville, USdaily high max18.9 C (66.0 F)1.7 C (3.1 F)21 years11 of 100 (Routine)
28 November 1927Waynesville, USdaily rain20.1 mm (0.8 in)1.0 mm (0.04 in)8 years6 of 100 (Routine)
27 November 1927Waynesville, USdaily high min12.8 C (55.0 F)1.7 C (3.1 F)5 years7 of 100 (Routine)

Climate Trend

29 complete years, 1898 to 1927
Annual mean temperature at Waynesville as warming stripes, 1898 to 1927 One stripe for each of 29 complete years at Waynesville, 1898 to 1927. Blue stripes are years cooler than the station's own mean of 11.2 C (52.1 F); red stripes are warmer. The coolest year was 1917, at 9.6 C (49.2 F), and the warmest was 1921, at 13.3 C (55.9 F). The strongest colour marks a difference of 2.2 C (4.0 F). 1898: 11.2 C, +0.1 C from the station mean1900: 11.8 C, +0.6 C from the station mean1901: 10.7 C, -0.4 C from the station mean1902: 10.9 C, -0.3 C from the station mean1903: 10.8 C, -0.4 C from the station mean1904: 9.9 C, -1.3 C from the station mean1905: 10.6 C, -0.5 C from the station mean1906: 11.2 C, +0.1 C from the station mean1907: 10.3 C, -0.9 C from the station mean1908: 11.9 C, +0.8 C from the station mean1909: 11.1 C, 0.0 C from the station mean1910: 10.8 C, -0.4 C from the station mean1911: 12.1 C, +0.9 C from the station mean1912: 10.2 C, -1.0 C from the station mean1913: 12.0 C, +0.8 C from the station mean1914: 11.1 C, -0.1 C from the station mean1915: 10.9 C, -0.3 C from the station mean1916: 11.1 C, 0.0 C from the station mean1917: 9.6 C, -1.6 C from the station mean1918: 11.5 C, +0.3 C from the station mean1919: 11.9 C, +0.7 C from the station mean1920: 10.8 C, -0.4 C from the station mean1921: 13.3 C, +2.1 C from the station mean1922: 12.4 C, +1.2 C from the station mean1923: 11.6 C, +0.5 C from the station mean1924: 10.4 C, -0.8 C from the station mean1925: 11.7 C, +0.6 C from the station mean1926: 10.6 C, -0.5 C from the station mean1927: 11.7 C, +0.5 C from the station mean1898190019051910191519201925
One stripe for each of 29 complete years at Waynesville, 1898 to 1927. Blue stripes are years cooler than the station's own mean of 11.2 C (52.1 F); red stripes are warmer. The coolest year was 1917, at 9.6 C (49.2 F), and the warmest was 1921, at 13.3 C (55.9 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Waynesville as warming stripes, 1898 to 1927
YearAnnual mean temperatureDifference from the station mean
189811.2 C+0.05 C
190011.8 C+0.64 C
190110.7 C-0.44 C
190210.9 C-0.30 C
190310.8 C-0.40 C
19049.9 C-1.28 C
190510.6 C-0.54 C
190611.2 C+0.05 C
190710.3 C-0.90 C
190811.9 C+0.75 C
190911.1 C-0.05 C
191010.8 C-0.37 C
191112.1 C+0.90 C
191210.2 C-0.98 C
191312.0 C+0.81 C
191411.1 C-0.06 C
191510.9 C-0.28 C
191611.1 C-0.05 C
19179.6 C-1.63 C
191811.5 C+0.29 C
191911.9 C+0.67 C
192010.8 C-0.43 C
192113.3 C+2.11 C
192212.4 C+1.21 C
192311.6 C+0.46 C
192410.4 C-0.83 C
192511.7 C+0.55 C
192610.6 C-0.55 C
192711.7 C+0.53 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1893 to 1928
Yearly extremes at Waynesville: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.6 C (105.1 F)190135.0 C (95.0 F)35
Coldest night (TNn)-30.6 C (-23.1 F)1899-21.1 C (-6.0 F)35
Wettest day (Rx1day)111.3 mm (4.4 in)191052.1 mm (2.0 in)36
Wettest five days (Rx5day)195.3 mm (7.7 in)191395.4 mm (3.8 in)36
Longest dry spell (CDD)36 days190819 days36

Hottest day (TXx)

Hottest day (TXx) at Waynesville by year The hottest day of the year at Waynesville, 1893 to 1928. The record is 40.6 C (105.1 F) in 1901, marked on the chart; the median year is 35.0 C (95.0 F). 1020304050190019101920Record: 40.6 C (105.1 F) in 1901
The hottest day of the year at Waynesville, 1893 to 1928. The record is 40.6 C (105.1 F) in 1901, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Waynesville by year
YearHottest day (TXx)
1893n/a
189426.7 C (80.1 F)
189536.1 C (97.0 F)
189635.6 C (96.1 F)
189736.7 C (98.1 F)
189838.3 C (100.9 F)
189936.7 C (98.1 F)
190035.0 C (95.0 F)
190140.6 C (105.1 F)
190234.4 C (93.9 F)
190334.4 C (93.9 F)
190433.9 C (93.0 F)
190532.8 C (91.0 F)
190633.3 C (91.9 F)
190733.9 C (93.0 F)
190836.1 C (97.0 F)
190931.1 C (88.0 F)
191034.4 C (93.9 F)
191137.2 C (99.0 F)
191233.3 C (91.9 F)
191337.2 C (99.0 F)
191437.8 C (100.0 F)
191532.2 C (90.0 F)
191636.1 C (97.0 F)
191733.3 C (91.9 F)
191838.3 C (100.9 F)
191935.0 C (95.0 F)
192032.8 C (91.0 F)
192136.7 C (98.1 F)
192234.4 C (93.9 F)
192335.0 C (95.0 F)
192435.6 C (96.1 F)
192536.7 C (98.1 F)
192635.6 C (96.1 F)
192734.4 C (93.9 F)
192817.8 C (64.0 F)

Coldest night (TNn)

Coldest night (TNn) at Waynesville by year The coldest night of the year at Waynesville, 1893 to 1928. The record is -30.6 C (-23.1 F) in 1899, marked on the chart; the median year is -21.1 C (-6.0 F). -40-30-20-100190019101920Record: -30.6 C (-23.1 F) in 1899
The coldest night of the year at Waynesville, 1893 to 1928. The record is -30.6 C (-23.1 F) in 1899, marked on the chart; the median year is -21.1 C (-6.0 F).
Coldest night (TNn) at Waynesville by year
YearColdest night (TNn)
1893n/a
1894-8.9 C (16.0 F)
1895-7.2 C (19.0 F)
1896-12.2 C (10.0 F)
1897-25.6 C (-14.1 F)
1898-21.1 C (-6.0 F)
1899-30.6 C (-23.1 F)
1900-21.7 C (-7.1 F)
1901-23.3 C (-9.9 F)
1902-21.1 C (-6.0 F)
1903-21.7 C (-7.1 F)
1904-24.4 C (-11.9 F)
1905-22.8 C (-9.0 F)
1906-21.1 C (-6.0 F)
1907-20.0 C (-4.0 F)
1908-17.8 C (0.0 F)
1909-23.3 C (-9.9 F)
1910-21.7 C (-7.1 F)
1911-17.8 C (0.0 F)
1912-26.1 C (-15.0 F)
1913-20.0 C (-4.0 F)
1914-22.2 C (-8.0 F)
1915-21.1 C (-6.0 F)
1916-20.6 C (-5.1 F)
1917-26.1 C (-15.0 F)
1918-27.8 C (-18.0 F)
1919-17.2 C (1.0 F)
1920-19.4 C (-2.9 F)
1921-10.6 C (12.9 F)
1922-16.7 C (1.9 F)
1923-18.9 C (-2.0 F)
1924-22.2 C (-8.0 F)
1925-21.1 C (-6.0 F)
1926-24.4 C (-11.9 F)
1927-17.8 C (0.0 F)
1928-20.6 C (-5.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Waynesville by year The wettest day of the year at Waynesville, 1893 to 1928. The record is 111.3 mm (4.4 in) in 1910, marked on the chart; the median year is 52.1 mm (2.0 in). 0255075100125190019101920Record: 111.3 mm (4.4 in) in 1910
The wettest day of the year at Waynesville, 1893 to 1928. The record is 111.3 mm (4.4 in) in 1910, marked on the chart; the median year is 52.1 mm (2.0 in).
Wettest day (Rx1day) at Waynesville by year
YearWettest day (Rx1day)
189348.8 mm (1.9 in)
189438.6 mm (1.5 in)
189533.5 mm (1.3 in)
189650.8 mm (2.0 in)
189791.4 mm (3.6 in)
189850.8 mm (2.0 in)
189958.4 mm (2.3 in)
190043.2 mm (1.7 in)
190141.9 mm (1.6 in)
190261.0 mm (2.4 in)
190363.5 mm (2.5 in)
190447.8 mm (1.9 in)
190573.7 mm (2.9 in)
190631.0 mm (1.2 in)
190769.9 mm (2.8 in)
190858.4 mm (2.3 in)
190953.3 mm (2.1 in)
1910111.3 mm (4.4 in)
191140.6 mm (1.6 in)
191269.1 mm (2.7 in)
191365.0 mm (2.6 in)
191464.8 mm (2.6 in)
191550.0 mm (2.0 in)
191645.7 mm (1.8 in)
191746.5 mm (1.8 in)
191859.9 mm (2.4 in)
191938.1 mm (1.5 in)
192061.0 mm (2.4 in)
192149.3 mm (1.9 in)
192266.0 mm (2.6 in)
192347.2 mm (1.9 in)
192453.3 mm (2.1 in)
192573.9 mm (2.9 in)
1926108.2 mm (4.3 in)
192738.6 mm (1.5 in)
192817.8 mm (0.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Waynesville by year The wettest five days of the year at Waynesville, 1893 to 1928. The record is 195.3 mm (7.7 in) in 1913, marked on the chart; the median year is 95.4 mm (3.8 in). 050100150200190019101920Record: 195.3 mm (7.7 in) in 1913
The wettest five days of the year at Waynesville, 1893 to 1928. The record is 195.3 mm (7.7 in) in 1913, marked on the chart; the median year is 95.4 mm (3.8 in).
Wettest five days (Rx5day) at Waynesville by year
YearWettest five days (Rx5day)
1893115.1 mm (4.5 in)
189457.2 mm (2.3 in)
189577.7 mm (3.1 in)
189688.7 mm (3.5 in)
1897109.2 mm (4.3 in)
189898.4 mm (3.9 in)
189994.2 mm (3.7 in)
190085.7 mm (3.4 in)
190150.4 mm (2.0 in)
1902130.9 mm (5.2 in)
1903123.7 mm (4.9 in)
190496.5 mm (3.8 in)
1905111.8 mm (4.4 in)
190678.8 mm (3.1 in)
1907112.3 mm (4.4 in)
1908117.8 mm (4.6 in)
1909102.2 mm (4.0 in)
1910195.1 mm (7.7 in)
191165.4 mm (2.6 in)
191275.7 mm (3.0 in)
1913195.3 mm (7.7 in)
1914120.1 mm (4.7 in)
191573.4 mm (2.9 in)
191668.1 mm (2.7 in)
191776.5 mm (3.0 in)
1918113.0 mm (4.4 in)
191986.6 mm (3.4 in)
1920123.0 mm (4.8 in)
192184.1 mm (3.3 in)
192289.7 mm (3.5 in)
192366.3 mm (2.6 in)
192478.6 mm (3.1 in)
192598.1 mm (3.9 in)
1926117.1 mm (4.6 in)
192797.5 mm (3.8 in)
192843.5 mm (1.7 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Waynesville by year The longest dry spell of the year at Waynesville, 1893 to 1928. The record is 36 days in 1908, marked on the chart; the median year is 19 days. 10203040190019101920Record: 36 days in 1908
The longest dry spell of the year at Waynesville, 1893 to 1928. The record is 36 days in 1908, marked on the chart; the median year is 19 days.
Longest dry spell (CDD) at Waynesville by year
YearLongest dry spell (CDD)
189319 days
189416 days
189530 days
189613 days
189723 days
189815 days
189916 days
190016 days
190122 days
190220 days
190327 days
190429 days
190518 days
190615 days
190718 days
190836 days
190917 days
191034 days
191118 days
191225 days
191318 days
191423 days
191523 days
191619 days
191727 days
191817 days
191918 days
192027 days
192117 days
192220 days
192317 days
192431 days
192519 days
192612 days
192720 days
192810 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

29 years with a frost

Across 29 years with a frost, the median last spring frost at Waynesville falls on 23 April and the median first autumn frost on 13 October, which leaves a median of 175 days between them.

Fitted over all years, the growing season changes by +2.1 days per decade at this station.

Frost dates and growing season at Waynesville
MeasureMedian, all yearsEarliest periodRecent period (1898 to 1927)Recent against earliestFitted trend
Last spring frost23 Apriln/a23 Apriln/a+2.0 days per decade
First autumn frost13 Octobern/a13 Octobern/a+4.1 days per decade
Growing days175 daysn/a175 daysn/a+2.1 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

34 years, 1894 to 1927

A day with at least 53.6 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 122.8 mm (4.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Waynesville: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years53.6 mm (2.1 in)
5 years69.9 mm (2.8 in)
10 years81.5 mm (3.2 in)
25 years97.2 mm (3.8 in)
50 years109.7 mm (4.3 in)Longer than the 34 years of record
100 years122.8 mm (4.8 in)Longer than the 34 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, 34 years of values from 1894 to 1927.

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: 111.3 mm (4.4 in) in 1910; 108.2 mm (4.3 in) in 1926; 91.4 mm (3.6 in) in 1897.

Download the Data

  • Data for Waynesville standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Waynesville 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 (2025-12-31).