Built 2026-10-16 (16 October 2026)

Appleton Weather Records (USC00450217)

Record envelope, standing records and threshold days for Appleton (USC00450217), Washington, United States, with 48 years of record.

Key Facts for Appleton

  • Appleton (USC00450217) is a weather station in Washington, United States at 45.81 latitude and -121.28 longitude, 712 m (2,336 ft) above sea level.
  • The station reports from 1959 to 2006, 48 years of record.
  • 1,464 records set at Appleton still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Appleton set a daily record low minimum temperature of -8.9 C (16.0 F) on 31 October 2006.

About the Station

  • Location: Washington, United States, 45.81 latitude, -121.28 longitude.
  • Elevation: 712 m (2,336 ft).
  • Period of record: 1959 to 2006, 48 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Appleton, with 2026 drawn through them The band shows the record high and record low for each calendar day at Appleton. 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 Appleton. 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 Appleton, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan15.0 C (59.0 F)-25.0 C (-13.0 F)n/an/a
Feb16.7 C (62.1 F)-27.8 C (-18.0 F)n/an/a
Mar22.8 C (73.0 F)-14.4 C (6.1 F)n/an/a
Apr28.3 C (82.9 F)-7.2 C (19.0 F)n/an/a
May35.0 C (95.0 F)-5.0 C (23.0 F)n/an/a
Jun36.7 C (98.1 F)-5.6 C (21.9 F)n/an/a
Jul40.6 C (105.1 F)-1.1 C (30.0 F)n/an/a
Aug38.9 C (102.0 F)-0.6 C (30.9 F)n/an/a
Sep37.2 C (99.0 F)-5.0 C (23.0 F)n/an/a
Oct29.4 C (84.9 F)-11.1 C (12.0 F)n/an/a
Nov19.4 C (66.9 F)-21.7 C (-7.1 F)n/an/a
Dec15.0 C (59.0 F)-28.3 C (-18.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Appleton by the year they were set 1,464 records at Appleton still stand. 1972 holds the most, with 59. 02040601959: 181960: 341961: 311962: 441963: 261964: 391965: 371966: 261967: 321968: 321969: 341970: 321971: 361972: 591973: 281974: 361975: 361976: 251977: 401978: 201979: 271980: 401981: 281982: 201983: 291984: 241985: 501986: 391987: 471988: 351989: 301990: 311991: 231992: 351993: 311994: 311995: 341996: 421997: 161998: 131999: 242000: 152001: 132002: 92003: 282004: 182005: 262006: 411959196419691974197919841989199419992004
1,464 records at Appleton still stand. 1972 holds the most, with 59.
Standing records at Appleton by the year they were set
Year setStanding records
195918
196034
196131
196244
196326
196439
196537
196626
196732
196832
196934
197032
197136
197259
197328
197436
197536
197625
197740
197820
197927
198040
198128
198220
198329
198424
198550
198639
198747
198835
198930
199031
199123
199235
199331
199431
199534
199642
199716
199813
199924
200015
200113
20029
200328
200418
200526
200641

All-Time Record Progression

4 new records
When Appleton set new all-time records 4 all-time records were set at Appleton between 23 July 1994 and 28 July 1998. Each dot is a new record. Record high maximum temperatureRecord daily precipitationRecord daily snowfall23 July 1994: Record high maximum temperature 39.4 C (102.9 F)19 November 1996: Record daily precipitation 98.6 mm (3.9 in)19 November 1996: Record daily snowfall 91.4 cm (36.0 in)28 July 1998: Record high maximum temperature 40.6 C (105.1 F)1995
4 all-time records were set at Appleton between 23 July 1994 and 28 July 1998. Each dot is a new record.
When Appleton set new all-time records
DateKindDetail
1994-07-23Record high maximum temperatureRecord high maximum temperature 39.4 C (102.9 F)
1996-11-19Record daily precipitationRecord daily precipitation 98.6 mm (3.9 in)
1996-11-19Record daily snowfallRecord daily snowfall 91.4 cm (36.0 in)
1998-07-28Record high maximum temperatureRecord high maximum temperature 40.6 C (105.1 F)

Wettest Day of Each Month

Nov: 98.6 mm (3.9 in)
Record daily precipitation for each month at Appleton The wettest day on record for each calendar month at Appleton. The most was 98.6 mm (3.9 in) on 19 November 1996. 0255075100 Jan: 77.5 mm (3.1 in), 11 January 1972 Jan Feb: 63.5 mm (2.5 in), 11 February 2000 Feb Mar: 44.5 mm (1.8 in), 3 March 1960 Mar Apr: 28.4 mm (1.1 in), 23 April 1996 Apr May: 26.4 mm (1.0 in), 10 May 1961 May Jun: 44.2 mm (1.7 in), 8 June 1981 Jun Jul: 19.8 mm (0.8 in), 10 July 1995 Jul Aug: 25.4 mm (1.0 in), 21 August 1979 Aug Sep: 38.9 mm (1.5 in), 1 September 1971 Sep Oct: 81.0 mm (3.2 in), 27 October 1994 Oct Nov: 98.6 mm (3.9 in), 19 November 1996 Nov Dec: 86.4 mm (3.4 in), 22 December 1964 Dec
The wettest day on record for each calendar month at Appleton. The most was 98.6 mm (3.9 in) on 19 November 1996.
Record daily precipitation for each month at Appleton
MonthRecord daily precipitation (mm)Date
Jan77.5 mm (3.1 in)11 January 1972
Feb63.5 mm (2.5 in)11 February 2000
Mar44.5 mm (1.8 in)3 March 1960
Apr28.4 mm (1.1 in)23 April 1996
May26.4 mm (1.0 in)10 May 1961
Jun44.2 mm (1.7 in)8 June 1981
Jul19.8 mm (0.8 in)10 July 1995
Aug25.4 mm (1.0 in)21 August 1979
Sep38.9 mm (1.5 in)1 September 1971
Oct81.0 mm (3.2 in)27 October 1994
Nov98.6 mm (3.9 in)19 November 1996
Dec86.4 mm (3.4 in)22 December 1964

Period of Record Coverage

1959 to 2006
Days with data per year at Appleton 48 years of record at Appleton, 1959 to 2006. 10 years have data for under 90 percent of days and are left out of rankings: 1959, 1994, 1996, 1998, 1999, 2000, 2002, 2004 and others. 1959: 199 of 365 days1960: 363 of 366 days1961: 365 of 365 days1962: 362 of 365 days1963: 365 of 365 days1964: 364 of 366 days1965: 365 of 365 days1966: 364 of 365 days1967: 365 of 365 days1968: 365 of 366 days1969: 364 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 364 of 366 days1973: 364 of 365 days1974: 363 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 362 of 365 days1978: 365 of 365 days1979: 354 of 365 days1980: 360 of 366 days1981: 364 of 365 days1982: 360 of 365 days1983: 358 of 365 days1984: 356 of 366 days1985: 365 of 365 days1986: 360 of 365 days1987: 362 of 365 days1988: 359 of 366 days1989: 330 of 365 days1990: 362 of 365 days1991: 364 of 365 days1992: 331 of 366 days1993: 363 of 365 days1994: 304 of 365 days1995: 331 of 365 days1996: 329 of 366 days1997: 361 of 365 days1998: 289 of 365 days1999: 328 of 365 days2000: 308 of 366 days2001: 339 of 365 days2002: 179 of 365 days2003: 349 of 365 days2004: 300 of 366 days2005: 303 of 365 days2006: 266 of 365 days19601970198019902000
48 years of record at Appleton, 1959 to 2006. 10 years have data for under 90 percent of days and are left out of rankings: 1959, 1994, 1996, 1998, 1999, 2000, 2002, 2004 and others.
Days with data per year at Appleton
YearDays with dataShare of yearComplete
195919955%No
196036399%Yes
1961365100%Yes
196236299%Yes
1963365100%Yes
196436499%Yes
1965365100%Yes
1966364100%Yes
1967365100%Yes
1968365100%Yes
1969364100%Yes
1970365100%Yes
1971365100%Yes
197236499%Yes
1973364100%Yes
197436399%Yes
1975365100%Yes
1976366100%Yes
197736299%Yes
1978365100%Yes
197935497%Yes
198036098%Yes
1981364100%Yes
198236099%Yes
198335898%Yes
198435697%Yes
1985365100%Yes
198636099%Yes
198736299%Yes
198835998%Yes
198933090%Yes
199036299%Yes
1991364100%Yes
199233190%Yes
199336399%Yes
199430483%No
199533191%Yes
199632990%No
199736199%Yes
199828979%No
199932890%No
200030884%No
200133993%Yes
200217949%No
200334996%Yes
200430082%No
200530383%No
200626673%No

Latest Records

20
Latest records at Appleton
DateStationRecordValueBeat old record byOld record stoodSignificance
31 October 2006Appleton, USdaily low min-8.9 C (16.0 F)0.6 C (1.1 F)3 years5 of 100 (Routine)
30 September 2006Appleton, USdaily high max29.4 C (84.9 F)1.1 C (2.0 F)12 years9 of 100 (Routine)
6 September 2006Appleton, USdaily high max (Tie)32.2 C (90.0 F)tie16 years2 of 100 (Routine)
30 August 2006Appleton, USdaily low max (Tie)13.3 C (55.9 F)tie31 years3 of 100 (Routine)
20 August 2006Appleton, USdaily low min3.3 C (37.9 F)1.7 C (3.1 F)41 years21 of 100 (Routine)
19 August 2006Appleton, USdaily low min (Tie)2.2 C (36.0 F)tie9 years1 of 100 (Routine)
15 August 2006Appleton, USdaily low min (Tie)4.4 C (39.9 F)tie43 years4 of 100 (Routine)
14 August 2006Appleton, USdaily low min2.2 C (36.0 F)1.7 C (3.1 F)36 years19 of 100 (Routine)
13 August 2006Appleton, USdaily low min1.7 C (35.1 F)1.1 C (2.0 F)11 years10 of 100 (Routine)
10 August 2006Appleton, USdaily low min3.3 C (37.9 F)1.1 C (2.0 F)41 years19 of 100 (Routine)
8 August 2006Appleton, USdaily low min4.4 C (39.9 F)0.6 C (1.1 F)36 years16 of 100 (Routine)
7 August 2006Appleton, USdaily low min4.4 C (39.9 F)1.7 C (3.1 F)17 years14 of 100 (Routine)
6 August 2006Appleton, USdaily low min2.2 C (36.0 F)0.6 C (1.1 F)36 years16 of 100 (Routine)
5 August 2006Appleton, USdaily low max (Tie)18.3 C (64.9 F)tie36 years3 of 100 (Routine)
4 August 2006Appleton, USdaily low min3.3 C (37.9 F)2.3 C (4.1 F)25 years18 of 100 (Routine)
3 August 2006Appleton, USdaily low min5.0 C (41.0 F)0.6 C (1.1 F)9 years7 of 100 (Routine)
2 August 2006Appleton, USdaily low min0.0 C (32.0 F)4.4 C (7.9 F)45 years30 of 100 (Routine)
2 August 2006Appleton, USmonthly low max12.8 C (55.0 F)0.5 C (0.9 F)30 years23 of 100 (Routine)
1 August 2006Appleton, USmonthly low min (Tie)-0.6 C (30.9 F)tie40 years6 of 100 (Routine)
31 July 2006Appleton, USdaily low min5.6 C (42.1 F)1.1 C (2.0 F)11 years10 of 100 (Routine)

Climate Trend

36 complete years, 1960 to 2003
Annual mean temperature at Appleton as warming stripes, 1960 to 2003 One stripe for each of 36 complete years at Appleton, 1960 to 2003. Blue stripes are years cooler than the station's own mean of 7.8 C (46.0 F); red stripes are warmer. The coolest year was 1985, at 6.2 C (43.1 F), and the warmest was 1967, at 8.9 C (48.0 F). The strongest colour marks a difference of 1.7 C (3.1 F). 1960: 7.7 C, -0.1 C from the station mean1961: 8.1 C, +0.4 C from the station mean1962: 7.6 C, -0.2 C from the station mean1963: 7.8 C, 0.0 C from the station mean1964: 6.9 C, -0.9 C from the station mean1965: 8.2 C, +0.4 C from the station mean1966: 8.1 C, +0.3 C from the station mean1967: 8.9 C, +1.1 C from the station mean1968: 7.8 C, 0.0 C from the station mean1969: 7.3 C, -0.4 C from the station mean1970: 7.6 C, -0.2 C from the station mean1971: 7.6 C, -0.1 C from the station mean1972: 7.7 C, -0.1 C from the station mean1973: 7.9 C, +0.1 C from the station mean1974: 7.9 C, +0.2 C from the station mean1975: 7.4 C, -0.4 C from the station mean1976: 7.7 C, 0.0 C from the station mean1977: 7.7 C, -0.1 C from the station mean1978: 7.5 C, -0.3 C from the station mean1979: 7.7 C, -0.1 C from the station mean1980: 7.3 C, -0.4 C from the station mean1981: 7.9 C, +0.1 C from the station mean1982: 7.1 C, -0.7 C from the station mean1983: 7.6 C, -0.2 C from the station mean1984: 7.0 C, -0.8 C from the station mean1985: 6.2 C, -1.6 C from the station mean1986: 8.1 C, +0.4 C from the station mean1987: 8.5 C, +0.7 C from the station mean1988: 8.3 C, +0.5 C from the station mean1990: 8.4 C, +0.6 C from the station mean1991: 8.4 C, +0.6 C from the station mean1993: 7.0 C, -0.8 C from the station mean1997: 8.1 C, +0.3 C from the station mean1999: 8.3 C, +0.5 C from the station mean2001: 8.2 C, +0.4 C from the station mean2003: 8.8 C, +1.1 C from the station mean196019651970197519801985199019952000
One stripe for each of 36 complete years at Appleton, 1960 to 2003. Blue stripes are years cooler than the station's own mean of 7.8 C (46.0 F); red stripes are warmer. The coolest year was 1985, at 6.2 C (43.1 F), and the warmest was 1967, at 8.9 C (48.0 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Appleton as warming stripes, 1960 to 2003
YearAnnual mean temperatureDifference from the station mean
19607.7 C-0.07 C
19618.1 C+0.35 C
19627.6 C-0.16 C
19637.8 C-0.02 C
19646.9 C-0.86 C
19658.2 C+0.41 C
19668.1 C+0.30 C
19678.9 C+1.08 C
19687.8 C+0.01 C
19697.3 C-0.45 C
19707.6 C-0.17 C
19717.6 C-0.15 C
19727.7 C-0.14 C
19737.9 C+0.07 C
19747.9 C+0.15 C
19757.4 C-0.39 C
19767.7 C-0.05 C
19777.7 C-0.14 C
19787.5 C-0.34 C
19797.7 C-0.13 C
19807.3 C-0.45 C
19817.9 C+0.12 C
19827.1 C-0.71 C
19837.6 C-0.22 C
19847.0 C-0.81 C
19856.2 C-1.63 C
19868.1 C+0.35 C
19878.5 C+0.73 C
19888.3 C+0.53 C
19908.4 C+0.59 C
19918.4 C+0.58 C
19937.0 C-0.79 C
19978.1 C+0.33 C
19998.3 C+0.54 C
20018.2 C+0.43 C
20038.8 C+1.05 C

The fitted trend in annual mean temperature here over 1960 to 2003 is 0.1 C (-0.1 to 0.3) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.2 F (-0.1 to 0.5) per decade. The slope is a straight line fitted to 36 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Appleton
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.1 C (-0.1 to 0.3) per decade0.2 F (-0.1 to 0.5) per decade1960 to 200336Not clearly different from zero
Mean daily maximum0.1 C (-0.1 to 0.3) per decade0.2 F (-0.2 to 0.5) per decade1960 to 200336Not clearly different from zero
Mean daily minimum0.10 C (-0.05 to 0.24) per decade0.2 F (-0.1 to 0.4) per decade1960 to 200336Not 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

1959 to 2006
Yearly extremes at Appleton: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.6 C (105.1 F)199835.9 C (96.5 F)48
Coldest night (TNn)-28.3 C (-18.9 F)1983-16.9 C (1.5 F)48
Wettest day (Rx1day)98.6 mm (3.9 in)199644.2 mm (1.7 in)48
Wettest five days (Rx5day)247.9 mm (9.8 in)1964103.5 mm (4.1 in)48
Longest dry spell (CDD)102 days197445 days48

Hottest day (TXx)

Hottest day (TXx) at Appleton by year The hottest day of the year at Appleton, 1959 to 2006. The record is 40.6 C (105.1 F) in 1998, marked on the chart; the median year is 35.9 C (96.5 F). 3032.53537.54042.519601970198019902000Record: 40.6 C (105.1 F) in 1998
The hottest day of the year at Appleton, 1959 to 2006. The record is 40.6 C (105.1 F) in 1998, marked on the chart; the median year is 35.9 C (96.5 F).
Hottest day (TXx) at Appleton by year
YearHottest day (TXx)
195937.2 C (99.0 F)
196035.6 C (96.1 F)
196137.2 C (99.0 F)
196235.0 C (95.0 F)
196336.7 C (98.1 F)
196434.4 C (93.9 F)
196536.1 C (97.0 F)
196632.8 C (91.0 F)
196737.2 C (99.0 F)
196836.7 C (98.1 F)
196933.3 C (91.9 F)
197035.0 C (95.0 F)
197137.8 C (100.0 F)
197238.9 C (102.0 F)
197335.6 C (96.1 F)
197435.0 C (95.0 F)
197535.0 C (95.0 F)
197632.8 C (91.0 F)
197737.8 C (100.0 F)
197836.1 C (97.0 F)
197936.7 C (98.1 F)
198033.9 C (93.0 F)
198137.8 C (100.0 F)
198235.0 C (95.0 F)
198333.3 C (91.9 F)
198435.6 C (96.1 F)
198536.7 C (98.1 F)
198635.6 C (96.1 F)
198735.6 C (96.1 F)
198837.2 C (99.0 F)
198931.7 C (89.1 F)
199037.2 C (99.0 F)
199136.1 C (97.0 F)
199238.3 C (100.9 F)
199333.9 C (93.0 F)
199439.4 C (102.9 F)
199533.3 C (91.9 F)
199639.4 C (102.9 F)
199737.2 C (99.0 F)
199840.6 C (105.1 F)
199933.9 C (93.0 F)
200032.8 C (91.0 F)
200134.4 C (93.9 F)
200234.4 C (93.9 F)
200337.2 C (99.0 F)
200437.2 C (99.0 F)
200535.6 C (96.1 F)
200637.2 C (99.0 F)

Coldest night (TNn)

Coldest night (TNn) at Appleton by year The coldest night of the year at Appleton, 1959 to 2006. The record is -28.3 C (-18.9 F) in 1983, marked on the chart; the median year is -16.9 C (1.5 F). -30-20-10019601970198019902000Record: -28.3 C (-18.9 F) in 1983
The coldest night of the year at Appleton, 1959 to 2006. The record is -28.3 C (-18.9 F) in 1983, marked on the chart; the median year is -16.9 C (1.5 F).
Coldest night (TNn) at Appleton by year
YearColdest night (TNn)
1959-11.7 C (10.9 F)
1960-16.7 C (1.9 F)
1961-17.2 C (1.0 F)
1962-21.7 C (-7.1 F)
1963-21.7 C (-7.1 F)
1964-22.8 C (-9.0 F)
1965-11.7 C (10.9 F)
1966-11.7 C (10.9 F)
1967-13.3 C (8.1 F)
1968-23.9 C (-11.0 F)
1969-22.8 C (-9.0 F)
1970-11.7 C (10.9 F)
1971-16.1 C (3.0 F)
1972-25.6 C (-14.1 F)
1973-20.6 C (-5.1 F)
1974-23.9 C (-11.0 F)
1975-13.9 C (7.0 F)
1976-14.4 C (6.1 F)
1977-18.9 C (-2.0 F)
1978-21.7 C (-7.1 F)
1979-24.4 C (-11.9 F)
1980-25.0 C (-13.0 F)
1981-16.7 C (1.9 F)
1982-16.7 C (1.9 F)
1983-28.3 C (-18.9 F)
1984-21.1 C (-6.0 F)
1985-22.8 C (-9.0 F)
1986-10.6 C (12.9 F)
1987-16.1 C (3.0 F)
1988-18.9 C (-2.0 F)
1989-23.3 C (-9.9 F)
1990-26.7 C (-16.1 F)
1991-11.7 C (10.9 F)
1992-13.9 C (7.0 F)
1993-21.1 C (-6.0 F)
1994-20.0 C (-4.0 F)
1995-12.8 C (9.0 F)
1996-27.8 C (-18.0 F)
1997-16.1 C (3.0 F)
1998-18.3 C (-0.9 F)
1999-7.8 C (18.0 F)
2000-8.9 C (16.0 F)
2001-10.0 C (14.0 F)
2002-8.9 C (16.0 F)
2003-12.8 C (9.0 F)
2004-18.9 C (-2.0 F)
2005-13.3 C (8.1 F)
2006-15.0 C (5.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Appleton by year The wettest day of the year at Appleton, 1959 to 2006. The record is 98.6 mm (3.9 in) in 1996, marked on the chart; the median year is 44.2 mm (1.7 in). 2040608010019601970198019902000Record: 98.6 mm (3.9 in) in 1996
The wettest day of the year at Appleton, 1959 to 2006. The record is 98.6 mm (3.9 in) in 1996, marked on the chart; the median year is 44.2 mm (1.7 in).
Wettest day (Rx1day) at Appleton by year
YearWettest day (Rx1day)
195932.5 mm (1.3 in)
196075.7 mm (3.0 in)
196149.5 mm (1.9 in)
196242.4 mm (1.7 in)
196332.0 mm (1.3 in)
196486.4 mm (3.4 in)
196547.5 mm (1.9 in)
196664.5 mm (2.5 in)
196733.0 mm (1.3 in)
196835.1 mm (1.4 in)
196934.3 mm (1.4 in)
197029.7 mm (1.2 in)
197143.9 mm (1.7 in)
197277.5 mm (3.1 in)
197338.9 mm (1.5 in)
197476.2 mm (3.0 in)
197544.5 mm (1.8 in)
197627.7 mm (1.1 in)
197777.7 mm (3.1 in)
197822.1 mm (0.9 in)
197936.1 mm (1.4 in)
198058.2 mm (2.3 in)
198151.1 mm (2.0 in)
198254.1 mm (2.1 in)
198338.1 mm (1.5 in)
198445.0 mm (1.8 in)
198526.9 mm (1.1 in)
198628.4 mm (1.1 in)
198758.4 mm (2.3 in)
198837.1 mm (1.5 in)
198937.8 mm (1.5 in)
199053.3 mm (2.1 in)
199129.0 mm (1.1 in)
199241.9 mm (1.6 in)
199326.2 mm (1.0 in)
199481.0 mm (3.2 in)
199563.5 mm (2.5 in)
199698.6 mm (3.9 in)
199746.2 mm (1.8 in)
199847.0 mm (1.9 in)
199942.9 mm (1.7 in)
200063.5 mm (2.5 in)
200150.8 mm (2.0 in)
200238.4 mm (1.5 in)
200342.7 mm (1.7 in)
200435.8 mm (1.4 in)
200553.3 mm (2.1 in)
200644.7 mm (1.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Appleton by year The wettest five days of the year at Appleton, 1959 to 2006. The record is 247.9 mm (9.8 in) in 1964, marked on the chart; the median year is 103.5 mm (4.1 in). 5010015020025019601970198019902000Record: 247.9 mm (9.8 in) in 1964
The wettest five days of the year at Appleton, 1959 to 2006. The record is 247.9 mm (9.8 in) in 1964, marked on the chart; the median year is 103.5 mm (4.1 in).
Wettest five days (Rx5day) at Appleton by year
YearWettest five days (Rx5day)
195969.8 mm (2.7 in)
1960128.1 mm (5.0 in)
1961127.2 mm (5.0 in)
196270.3 mm (2.8 in)
196385.3 mm (3.4 in)
1964247.9 mm (9.8 in)
1965123.9 mm (4.9 in)
1966165.8 mm (6.5 in)
196778.1 mm (3.1 in)
1968109.5 mm (4.3 in)
196990.1 mm (3.5 in)
1970124.8 mm (4.9 in)
1971108.3 mm (4.3 in)
1972137.9 mm (5.4 in)
197398.3 mm (3.9 in)
1974139.2 mm (5.5 in)
1975100.3 mm (3.9 in)
197682.3 mm (3.2 in)
1977172.4 mm (6.8 in)
197852.4 mm (2.1 in)
197970.2 mm (2.8 in)
1980154.2 mm (6.1 in)
198198.4 mm (3.9 in)
1982121.6 mm (4.8 in)
1983106.9 mm (4.2 in)
1984104.4 mm (4.1 in)
198559.7 mm (2.4 in)
198681.0 mm (3.2 in)
1987137.9 mm (5.4 in)
198882.1 mm (3.2 in)
198965.0 mm (2.6 in)
1990104.1 mm (4.1 in)
199154.3 mm (2.1 in)
199293.2 mm (3.7 in)
199356.7 mm (2.2 in)
1994145.1 mm (5.7 in)
1995125.8 mm (5.0 in)
1996190.8 mm (7.5 in)
1997104.1 mm (4.1 in)
1998102.9 mm (4.1 in)
199996.5 mm (3.8 in)
200078.4 mm (3.1 in)
200191.9 mm (3.6 in)
200279.0 mm (3.1 in)
2003107.9 mm (4.2 in)
200451.3 mm (2.0 in)
2005145.0 mm (5.7 in)
2006112.5 mm (4.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Appleton by year The longest dry spell of the year at Appleton, 1959 to 2006. The record is 102 days in 1974, marked on the chart; the median year is 45 days. 025507510012519601970198019902000Record: 102 days in 1974
The longest dry spell of the year at Appleton, 1959 to 2006. The record is 102 days in 1974, marked on the chart; the median year is 45 days.
Longest dry spell (CDD) at Appleton by year
YearLongest dry spell (CDD)
195941 days
196044 days
196137 days
196261 days
196343 days
196419 days
196532 days
196665 days
196779 days
196842 days
196985 days
197089 days
197166 days
197238 days
197360 days
1974102 days
197551 days
197639 days
197743 days
197845 days
197940 days
198068 days
198174 days
198229 days
198332 days
198471 days
198551 days
198674 days
198745 days
198842 days
198926 days
199046 days
199155 days
199241 days
199349 days
199464 days
199531 days
199638 days
199745 days
199830 days
199943 days
200060 days
200132 days
200232 days
200368 days
200435 days
200560 days
200645 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

36 years with a frost

Across 36 years with a frost, the median last spring frost at Appleton falls on 25 May and the median first autumn frost on 21 September, which leaves a median of 123 days between them.

Fitted over all years, the growing season changes by +8.9 days per decade at this station.

Frost dates and growing season at Appleton
MeasureMedian, all yearsEarliest periodRecent period (1966 to 2003)Recent against earliestFitted trend
Last spring frost25 Mayn/a25 Mayn/a-2.3 days per decade
First autumn frost21 Septembern/a24 Septembern/a+6.6 days per decade
Growing days123 daysn/a124 daysn/a+8.9 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

38 years, 1960 to 2004

A day with at least 43.1 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 115.6 mm (4.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Appleton: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years43.1 mm (1.7 in)
5 years59.5 mm (2.3 in)
10 years71.5 mm (2.8 in)
25 years88.0 mm (3.5 in)
50 years101.3 mm (4.0 in)Longer than the 38 years of record
100 years115.6 mm (4.6 in)Longer than the 38 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, 38 years of values from 1960 to 2004.

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: 98.6 mm (3.9 in) in 1996; 86.4 mm (3.4 in) in 1964; 77.7 mm (3.1 in) in 1977.

Download the Data

  • Data for Appleton standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Appleton 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).