Built 2026-10-17 (17 October 2026)

Stanley Wwtp Weather Records (USC00478110)

Record envelope, standing records and threshold days for Stanley Wwtp (USC00478110), Wisconsin, United States, with 112 years of record.

Key Facts for Stanley Wwtp

  • Stanley Wwtp (USC00478110) is a weather station in Wisconsin, United States at 44.95 latitude and -90.93 longitude, 329 m (1,080 ft) above sea level.
  • The station reports from 1903 to 2014, 112 years of record.
  • 1,464 records set at Stanley Wwtp still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Stanley Wwtp tied a daily record low maximum temperature of -7.8 C (18.0 F) on 26 March 2014.

About the Station

  • Location: Wisconsin, United States, 44.95 latitude, -90.93 longitude.
  • Elevation: 329 m (1,080 ft).
  • Period of record: 1903 to 2014, 112 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 Stanley Wwtp, with 2026 drawn through them The band shows the record high and record low for each calendar day at Stanley Wwtp. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -60-40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Stanley Wwtp. 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 Stanley Wwtp, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan11.7 C (53.1 F)-43.3 C (-45.9 F)n/an/a
Feb13.9 C (57.0 F)-42.2 C (-44.0 F)n/an/a
Mar28.9 C (84.0 F)-40.6 C (-41.1 F)n/an/a
Apr31.7 C (89.1 F)-17.8 C (0.0 F)n/an/a
May41.7 C (107.1 F)-8.3 C (17.1 F)n/an/a
Jun36.7 C (98.1 F)-1.7 C (28.9 F)n/an/a
Jul45.0 C (113.0 F)1.7 C (35.1 F)n/an/a
Aug40.0 C (104.0 F)-0.6 C (30.9 F)n/an/a
Sep36.1 C (97.0 F)-7.2 C (19.0 F)n/an/a
Oct32.8 C (91.0 F)-15.6 C (3.9 F)n/an/a
Nov24.4 C (75.9 F)-26.7 C (-16.1 F)n/an/a
Dec17.2 C (63.0 F)-39.4 C (-38.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Stanley Wwtp by the year they were set 1,464 records at Stanley Wwtp still stand. 1936 holds the most, with 46. 02040601903: 51904: 141905: 121906: 141907: 201908: 141909: 201910: 251911: 171912: 271913: 161914: 81915: 131916: 211917: 131918: 91919: 111920: 171921: 161922: 101923: 181924: 111925: 151926: 101927: 131928: 141929: 151930: 201931: 221932: 131933: 171934: 351935: 151936: 461937: 271938: 61939: 91940: 181941: 121942: 121943: 91944: 151945: 101946: 141947: 241948: 231949: 61950: 101951: 201952: 111953: 151954: 101955: 91956: 191957: 51958: 81959: 121960: 121961: 101962: 161963: 131964: 141965: 171966: 111967: 121968: 91969: 81970: 111971: 121972: 161973: 141974: 121975: 61976: 161977: 191978: 61979: 41980: 71981: 101982: 71983: 201984: 111985: 131986: 101987: 101988: 131989: 101990: 81991: 191992: 131993: 51994: 111995: 91996: 21997: 61998: 111999: 92000: 242001: 132002: 102003: 72004: 102005: 112006: 112007: 132008: 92009: 62010: 92011: 82013: 142014: 71903191519271939195119631975198719992011
1,464 records at Stanley Wwtp still stand. 1936 holds the most, with 46.
Standing records at Stanley Wwtp by the year they were set
Year setStanding records
19035
190414
190512
190614
190720
190814
190920
191025
191117
191227
191316
19148
191513
191621
191713
19189
191911
192017
192116
192210
192318
192411
192515
192610
192713
192814
192915
193020
193122
193213
193317
193435
193515
193646
193727
19386
19399
194018
194112
194212
19439
194415
194510
194614
194724
194823
19496
195010
195120
195211
195315
195410
19559
195619
19575
19588
195912
196012
196110
196216
196313
196414
196517
196611
196712
19689
19698
197011
197112
197216
197314
197412
19756
197616
197719
19786
19794
19807
198110
19827
198320
198411
198513
198610
198710
198813
198910
19908
199119
199213
19935
199411
19959
19962
19976
199811
19999
200024
200113
200210
20037
200410
200511
200611
200713
20089
20096
20109
20118
201314
20147

All-Time Record Progression

9 new records
When Stanley Wwtp set new all-time records 9 all-time records were set at Stanley Wwtp between 31 May 1934 and 9 December 2009. Each dot is a new record. Record high maximum temperatureRecord low minimum temperatureRecord low maximum temperatureRecord daily snowfall31 May 1934: Record high maximum temperature 41.7 C (107.1 F)24 January 1935: Record low minimum temperature -41.7 C (-43.1 F)16 February 1936: Record low minimum temperature -42.2 C (-44.0 F)12 July 1936: Record high maximum temperature 45.0 C (113.0 F)29 January 1951: Record low maximum temperature -27.8 C (-18.0 F)30 January 1951: Record low minimum temperature -43.3 C (-45.9 F)15 January 1972: Record low maximum temperature -28.3 C (-18.9 F)19 January 1994: Record low maximum temperature -29.4 C (-20.9 F)9 December 2009: Record daily snowfall 31.5 cm (12.4 in)19401950196019701980199020002010
9 all-time records were set at Stanley Wwtp between 31 May 1934 and 9 December 2009. Each dot is a new record.
When Stanley Wwtp set new all-time records
DateKindDetail
1934-05-31Record high maximum temperatureRecord high maximum temperature 41.7 C (107.1 F)
1935-01-24Record low minimum temperatureRecord low minimum temperature -41.7 C (-43.1 F)
1936-02-16Record low minimum temperatureRecord low minimum temperature -42.2 C (-44.0 F)
1936-07-12Record high maximum temperatureRecord high maximum temperature 45.0 C (113.0 F)
1951-01-29Record low maximum temperatureRecord low maximum temperature -27.8 C (-18.0 F)
1951-01-30Record low minimum temperatureRecord low minimum temperature -43.3 C (-45.9 F)
1972-01-15Record low maximum temperatureRecord low maximum temperature -28.3 C (-18.9 F)
1994-01-19Record low maximum temperatureRecord low maximum temperature -29.4 C (-20.9 F)
2009-12-09Record daily snowfallRecord daily snowfall 31.5 cm (12.4 in)

Wettest Day of Each Month

Jun: 119.9 mm (4.7 in)
Record daily precipitation for each month at Stanley Wwtp The wettest day on record for each calendar month at Stanley Wwtp. The most was 119.9 mm (4.7 in) on 28 June 1920. 050100150 Jan: 30.5 mm (1.2 in), 21 January 1917 Jan Feb: 36.8 mm (1.4 in), 25 February 1930 Feb Mar: 50.8 mm (2.0 in), 24 March 1921 Mar Apr: 53.8 mm (2.1 in), 30 April 1954 Apr May: 72.6 mm (2.9 in), 29 May 1989 May Jun: 119.9 mm (4.7 in), 28 June 1920 Jun Jul: 112.3 mm (4.4 in), 1 July 1935 Jul Aug: 98.6 mm (3.9 in), 2 August 2001 Aug Sep: 108.5 mm (4.3 in), 11 September 2000 Sep Oct: 103.4 mm (4.1 in), 6 October 1911 Oct Nov: 53.6 mm (2.1 in), 2 November 1991 Nov Dec: 57.2 mm (2.3 in), 24 December 1932 Dec
The wettest day on record for each calendar month at Stanley Wwtp. The most was 119.9 mm (4.7 in) on 28 June 1920.
Record daily precipitation for each month at Stanley Wwtp
MonthRecord daily precipitation (mm)Date
Jan30.5 mm (1.2 in)21 January 1917
Feb36.8 mm (1.4 in)25 February 1930
Mar50.8 mm (2.0 in)24 March 1921
Apr53.8 mm (2.1 in)30 April 1954
May72.6 mm (2.9 in)29 May 1989
Jun119.9 mm (4.7 in)28 June 1920
Jul112.3 mm (4.4 in)1 July 1935
Aug98.6 mm (3.9 in)2 August 2001
Sep108.5 mm (4.3 in)11 September 2000
Oct103.4 mm (4.1 in)6 October 1911
Nov53.6 mm (2.1 in)2 November 1991
Dec57.2 mm (2.3 in)24 December 1932

Period of Record Coverage

1903 to 2014
Days with data per year at Stanley Wwtp 112 years of record at Stanley Wwtp, 1903 to 2014. 14 years have data for under 90 percent of days and are left out of rankings: 1903, 1932, 1933, 1947, 1948, 1949, 1950, 1951 and others. 1903: 117 of 365 days1904: 357 of 366 days1905: 364 of 365 days1906: 356 of 365 days1907: 360 of 365 days1908: 366 of 366 days1909: 363 of 365 days1910: 364 of 365 days1911: 333 of 365 days1912: 344 of 366 days1913: 334 of 365 days1914: 357 of 365 days1915: 350 of 365 days1916: 360 of 366 days1917: 363 of 365 days1918: 365 of 365 days1919: 364 of 365 days1920: 334 of 366 days1921: 363 of 365 days1922: 365 of 365 days1923: 363 of 365 days1924: 361 of 366 days1925: 362 of 365 days1926: 355 of 365 days1927: 359 of 365 days1928: 333 of 366 days1929: 354 of 365 days1930: 358 of 365 days1931: 356 of 365 days1932: 327 of 366 days1933: 253 of 365 days1934: 341 of 365 days1935: 363 of 365 days1936: 360 of 366 days1937: 365 of 365 days1938: 364 of 365 days1939: 362 of 365 days1940: 361 of 366 days1941: 362 of 365 days1942: 333 of 365 days1943: 363 of 365 days1944: 362 of 366 days1945: 360 of 365 days1946: 364 of 365 days1947: 262 of 365 days1948: 255 of 366 days1949: 120 of 365 days1950: 153 of 365 days1951: 318 of 365 days1952: 198 of 366 days1953: 364 of 365 days1954: 362 of 365 days1955: 361 of 365 days1956: 364 of 366 days1957: 365 of 365 days1958: 364 of 365 days1959: 364 of 365 days1960: 366 of 366 days1961: 362 of 365 days1962: 364 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 364 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 360 of 365 days1970: 334 of 365 days1971: 350 of 365 days1972: 334 of 366 days1973: 342 of 365 days1974: 327 of 365 days1975: 331 of 365 days1976: 344 of 366 days1977: 358 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 353 of 365 days1983: 363 of 365 days1984: 365 of 366 days1985: 364 of 365 days1986: 363 of 365 days1987: 365 of 365 days1988: 364 of 366 days1989: 353 of 365 days1990: 364 of 365 days1991: 364 of 365 days1992: 336 of 366 days1993: 363 of 365 days1994: 352 of 365 days1995: 330 of 365 days1996: 147 of 366 days1997: 364 of 365 days1998: 357 of 365 days1999: 362 of 365 days2000: 365 of 366 days2001: 358 of 365 days2002: 362 of 365 days2003: 361 of 365 days2004: 366 of 366 days2005: 363 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 350 of 365 days2011: 279 of 365 days2012: 66 of 366 days2013: 362 of 365 days2014: 112 of 365 days19051920193519501965198019952010
112 years of record at Stanley Wwtp, 1903 to 2014. 14 years have data for under 90 percent of days and are left out of rankings: 1903, 1932, 1933, 1947, 1948, 1949, 1950, 1951 and others.
Days with data per year at Stanley Wwtp
YearDays with dataShare of yearComplete
190311732%No
190435798%Yes
1905364100%Yes
190635698%Yes
190736099%Yes
1908366100%Yes
190936399%Yes
1910364100%Yes
191133391%Yes
191234494%Yes
191333492%Yes
191435798%Yes
191535096%Yes
191636098%Yes
191736399%Yes
1918365100%Yes
1919364100%Yes
192033491%Yes
192136399%Yes
1922365100%Yes
192336399%Yes
192436199%Yes
192536299%Yes
192635597%Yes
192735998%Yes
192833391%Yes
192935497%Yes
193035898%Yes
193135698%Yes
193232789%No
193325369%No
193434193%Yes
193536399%Yes
193636098%Yes
1937365100%Yes
1938364100%Yes
193936299%Yes
194036199%Yes
194136299%Yes
194233391%Yes
194336399%Yes
194436299%Yes
194536099%Yes
1946364100%Yes
194726272%No
194825570%No
194912033%No
195015342%No
195131887%No
195219854%No
1953364100%Yes
195436299%Yes
195536199%Yes
195636499%Yes
1957365100%Yes
1958364100%Yes
1959364100%Yes
1960366100%Yes
196136299%Yes
1962364100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
1966364100%Yes
1967365100%Yes
1968366100%Yes
196936099%Yes
197033492%Yes
197135096%Yes
197233491%Yes
197334294%Yes
197432790%No
197533191%Yes
197634494%Yes
197735898%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
198235397%Yes
198336399%Yes
1984365100%Yes
1985364100%Yes
198636399%Yes
1987365100%Yes
198836499%Yes
198935397%Yes
1990364100%Yes
1991364100%Yes
199233692%Yes
199336399%Yes
199435296%Yes
199533090%Yes
199614740%No
1997364100%Yes
199835798%Yes
199936299%Yes
2000365100%Yes
200135898%Yes
200236299%Yes
200336199%Yes
2004366100%Yes
200536399%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
201035096%Yes
201127976%No
20126618%No
201336299%Yes
201411231%No

Latest Records

20
Latest records at Stanley Wwtp
DateStationRecordValueBeat old record byOld record stoodSignificance
26 March 2014Stanley Wwtp, USdaily low max (Tie)-7.8 C (18.0 F)tie12 years3 of 100 (Routine)
4 March 2014Stanley Wwtp, USdaily low min-32.8 C (-27.0 F)6.7 C (12.1 F)96 years48 of 100 (Notable)
3 March 2014Stanley Wwtp, USdaily low min-32.8 C (-27.0 F)3.9 C (7.0 F)100 years45 of 100 (Notable)
3 March 2014Stanley Wwtp, USdaily low max-17.2 C (1.0 F)4.4 C (7.9 F)11 years19 of 100 (Routine)
28 February 2014Stanley Wwtp, USdaily low max-18.9 C (-2.0 F)5.0 C (9.0 F)52 years32 of 100 (Routine)
28 February 2014Stanley Wwtp, USdaily low min (Tie)-31.7 C (-25.1 F)tie100 years10 of 100 (Routine)
11 February 2014Stanley Wwtp, USdaily low min-32.8 C (-27.0 F)1.1 C (2.0 F)59 years28 of 100 (Routine)
7 February 2014Stanley Wwtp, USdaily low max-17.2 C (1.0 F)0.5 C (0.9 F)80 years34 of 100 (Routine)
15 January 2014Stanley Wwtp, USdaily snowfall22.9 cm (9.0 in)9.7 cm (3.8 in)7 years35 of 100 (Notable)
7 January 2014Stanley Wwtp, USdaily low max-26.1 C (-15.0 F)1.7 C (3.1 F)102 years42 of 100 (Notable)
30 December 2013Stanley Wwtp, USdaily low min-32.8 C (-27.0 F)1.1 C (2.0 F)50 years26 of 100 (Routine)
29 December 2013Stanley Wwtp, USdaily high max7.2 C (45.0 F)0.5 C (0.9 F)76 years33 of 100 (Routine)
25 December 2013Stanley Wwtp, USdaily snow depth (Tie)45.7 cm (18.0 in)tie40 years5 of 100 (Routine)
12 December 2013Stanley Wwtp, USdaily low max-18.9 C (-2.0 F)3.9 C (7.0 F)12 years19 of 100 (Routine)
24 November 2013Stanley Wwtp, USdaily low max-11.7 C (10.9 F)3.4 C (6.1 F)18 years20 of 100 (Routine)
28 August 2013Stanley Wwtp, USdaily high min22.2 C (72.0 F)1.1 C (2.0 F)23 years18 of 100 (Routine)
27 August 2013Stanley Wwtp, USdaily high min22.2 C (72.0 F)1.1 C (2.0 F)64 years31 of 100 (Routine)
26 August 2013Stanley Wwtp, USdaily high min21.7 C (71.1 F)1.1 C (2.0 F)88 years38 of 100 (Notable)
28 July 2013Stanley Wwtp, USmonthly low max (Tie)13.3 C (55.9 F)tie13 years5 of 100 (Routine)
19 July 2013Stanley Wwtp, USdaily high min23.3 C (73.9 F)1.1 C (2.0 F)2 years12 of 100 (Routine)

Climate Trend

82 complete years, 1904 to 2013
Annual mean temperature at Stanley Wwtp as warming stripes, 1904 to 2013 One stripe for each of 82 complete years at Stanley Wwtp, 1904 to 2013. Blue stripes are years cooler than the station's own mean of 5.8 C (42.5 F); red stripes are warmer. The coolest year was 1917, at 3.5 C (38.3 F), and the warmest was 1931, at 8.6 C (47.5 F). The strongest colour marks a difference of 2.8 C (5.0 F). 1904: 4.4 C, -1.4 C from the station mean1905: 5.3 C, -0.5 C from the station mean1906: 6.1 C, +0.3 C from the station mean1907: 4.7 C, -1.1 C from the station mean1908: 6.7 C, +0.8 C from the station mean1909: 5.7 C, -0.1 C from the station mean1910: 6.3 C, +0.4 C from the station mean1914: 5.6 C, -0.2 C from the station mean1915: 6.1 C, +0.3 C from the station mean1916: 5.2 C, -0.7 C from the station mean1917: 3.5 C, -2.3 C from the station mean1918: 6.0 C, +0.2 C from the station mean1919: 5.8 C, 0.0 C from the station mean1921: 7.6 C, +1.8 C from the station mean1923: 6.0 C, +0.2 C from the station mean1924: 4.3 C, -1.5 C from the station mean1925: 5.6 C, -0.3 C from the station mean1926: 4.7 C, -1.1 C from the station mean1927: 5.3 C, -0.5 C from the station mean1929: 4.6 C, -1.3 C from the station mean1930: 6.5 C, +0.6 C from the station mean1931: 8.6 C, +2.8 C from the station mean1935: 5.7 C, -0.2 C from the station mean1936: 5.1 C, -0.7 C from the station mean1937: 5.6 C, -0.2 C from the station mean1938: 6.7 C, +0.9 C from the station mean1939: 6.7 C, +0.8 C from the station mean1940: 5.0 C, -0.8 C from the station mean1941: 7.1 C, +1.3 C from the station mean1943: 5.3 C, -0.5 C from the station mean1944: 7.1 C, +1.2 C from the station mean1945: 5.4 C, -0.4 C from the station mean1946: 6.9 C, +1.1 C from the station mean1953: 6.9 C, +1.1 C from the station mean1954: 6.1 C, +0.2 C from the station mean1955: 5.6 C, -0.2 C from the station mean1956: 5.2 C, -0.6 C from the station mean1957: 5.8 C, -0.1 C from the station mean1958: 5.7 C, -0.2 C from the station mean1959: 5.8 C, -0.1 C from the station mean1960: 5.9 C, +0.1 C from the station mean1961: 6.2 C, +0.4 C from the station mean1962: 5.5 C, -0.3 C from the station mean1963: 5.8 C, 0.0 C from the station mean1964: 6.7 C, +0.9 C from the station mean1965: 5.1 C, -0.8 C from the station mean1966: 5.7 C, -0.2 C from the station mean1967: 5.1 C, -0.7 C from the station mean1968: 6.3 C, +0.5 C from the station mean1969: 5.8 C, -0.1 C from the station mean1977: 6.7 C, +0.8 C from the station mean1978: 5.6 C, -0.3 C from the station mean1979: 5.3 C, -0.5 C from the station mean1980: 6.2 C, +0.4 C from the station mean1981: 7.0 C, +1.2 C from the station mean1982: 5.9 C, 0.0 C from the station mean1983: 5.9 C, +0.1 C from the station mean1984: 5.6 C, -0.3 C from the station mean1985: 4.5 C, -1.3 C from the station mean1986: 5.5 C, -0.3 C from the station mean1987: 7.6 C, +1.7 C from the station mean1988: 5.8 C, -0.1 C from the station mean1989: 4.3 C, -1.5 C from the station mean1990: 6.2 C, +0.4 C from the station mean1991: 5.7 C, -0.1 C from the station mean1993: 4.5 C, -1.3 C from the station mean1994: 5.1 C, -0.8 C from the station mean1997: 5.1 C, -0.7 C from the station mean1998: 7.7 C, +1.9 C from the station mean1999: 6.7 C, +0.9 C from the station mean2000: 5.6 C, -0.2 C from the station mean2001: 6.3 C, +0.4 C from the station mean2002: 6.0 C, +0.2 C from the station mean2003: 5.4 C, -0.4 C from the station mean2004: 5.5 C, -0.4 C from the station mean2005: 6.4 C, +0.6 C from the station mean2006: 7.1 C, +1.3 C from the station mean2007: 6.4 C, +0.6 C from the station mean2008: 5.1 C, -0.8 C from the station mean2009: 5.6 C, -0.2 C from the station mean2010: 7.2 C, +1.4 C from the station mean2013: 4.5 C, -1.3 C from the station mean190419101920193019401950196019701980199020002010
One stripe for each of 82 complete years at Stanley Wwtp, 1904 to 2013. Blue stripes are years cooler than the station's own mean of 5.8 C (42.5 F); red stripes are warmer. The coolest year was 1917, at 3.5 C (38.3 F), and the warmest was 1931, at 8.6 C (47.5 F). The strongest colour marks a difference of 2.8 C (5.0 F).
Annual mean temperature at Stanley Wwtp as warming stripes, 1904 to 2013
YearAnnual mean temperatureDifference from the station mean
19044.4 C-1.40 C
19055.3 C-0.50 C
19066.1 C+0.30 C
19074.7 C-1.12 C
19086.7 C+0.82 C
19095.7 C-0.12 C
19106.3 C+0.44 C
19145.6 C-0.21 C
19156.1 C+0.28 C
19165.2 C-0.65 C
19173.5 C-2.33 C
19186.0 C+0.19 C
19195.8 C+0.01 C
19217.6 C+1.77 C
19236.0 C+0.16 C
19244.3 C-1.53 C
19255.6 C-0.26 C
19264.7 C-1.13 C
19275.3 C-0.50 C
19294.6 C-1.25 C
19306.5 C+0.63 C
19318.6 C+2.78 C
19355.7 C-0.18 C
19365.1 C-0.74 C
19375.6 C-0.24 C
19386.7 C+0.91 C
19396.7 C+0.85 C
19405.0 C-0.82 C
19417.1 C+1.26 C
19435.3 C-0.53 C
19447.1 C+1.23 C
19455.4 C-0.40 C
19466.9 C+1.06 C
19536.9 C+1.10 C
19546.1 C+0.24 C
19555.6 C-0.19 C
19565.2 C-0.63 C
19575.8 C-0.06 C
19585.7 C-0.18 C
19595.8 C-0.06 C
19605.9 C+0.07 C
19616.2 C+0.39 C
19625.5 C-0.32 C
19635.8 C-0.02 C
19646.7 C+0.87 C
19655.1 C-0.78 C
19665.7 C-0.18 C
19675.1 C-0.73 C
19686.3 C+0.50 C
19695.8 C-0.06 C
19776.7 C+0.82 C
19785.6 C-0.25 C
19795.3 C-0.50 C
19806.2 C+0.41 C
19817.0 C+1.19 C
19825.9 C+0.02 C
19835.9 C+0.09 C
19845.6 C-0.27 C
19854.5 C-1.29 C
19865.5 C-0.31 C
19877.6 C+1.73 C
19885.8 C-0.07 C
19894.3 C-1.49 C
19906.2 C+0.40 C
19915.7 C-0.09 C
19934.5 C-1.32 C
19945.1 C-0.75 C
19975.1 C-0.71 C
19987.7 C+1.89 C
19996.7 C+0.87 C
20005.6 C-0.20 C
20016.3 C+0.43 C
20026.0 C+0.19 C
20035.4 C-0.39 C
20045.5 C-0.38 C
20056.4 C+0.56 C
20067.1 C+1.28 C
20076.4 C+0.59 C
20085.1 C-0.78 C
20095.6 C-0.21 C
20107.2 C+1.40 C
20134.5 C-1.29 C

The fitted trend in annual mean temperature here over 1904 to 2013 is 0.02 C (-0.04 to 0.08) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.04 F (-0.06 to 0.15) per decade. The slope is a straight line fitted to 82 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Stanley Wwtp
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.02 C (-0.04 to 0.08) per decade0.04 F (-0.06 to 0.15) per decade1904 to 201382Not clearly different from zero
Mean daily maximum0.01 C (-0.05 to 0.08) per decade0.02 F (-0.09 to 0.14) per decade1904 to 201382Not clearly different from zero
Mean daily minimum0.04 C (-0.03 to 0.10) per decade0.1 F (-0.1 to 0.2) per decade1904 to 201382Not 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

1903 to 2014
Yearly extremes at Stanley Wwtp: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)45.0 C (113.0 F)193633.3 C (91.9 F)112
Coldest night (TNn)-43.3 C (-45.9 F)1951-33.3 C (-27.9 F)112
Wettest day (Rx1day)119.9 mm (4.7 in)192054.4 mm (2.1 in)112
Wettest five days (Rx5day)237.8 mm (9.4 in)198084.9 mm (3.3 in)112
Longest dry spell (CDD)56 days197822 days112

Hottest day (TXx)

Hottest day (TXx) at Stanley Wwtp by year The hottest day of the year at Stanley Wwtp, 1903 to 2014. The record is 45.0 C (113.0 F) in 1936, marked on the chart; the median year is 33.3 C (91.9 F). 2030405019201940196019802000Record: 45.0 C (113.0 F) in 1936
The hottest day of the year at Stanley Wwtp, 1903 to 2014. The record is 45.0 C (113.0 F) in 1936, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at Stanley Wwtp by year
YearHottest day (TXx)
190328.3 C (82.9 F)
190433.3 C (91.9 F)
190533.3 C (91.9 F)
190633.9 C (93.0 F)
190731.7 C (89.1 F)
190833.3 C (91.9 F)
190932.2 C (90.0 F)
191036.7 C (98.1 F)
191136.1 C (97.0 F)
191235.6 C (96.1 F)
191334.4 C (93.9 F)
191433.3 C (91.9 F)
191531.7 C (89.1 F)
191634.4 C (93.9 F)
191735.6 C (96.1 F)
191832.8 C (91.0 F)
191932.8 C (91.0 F)
192033.3 C (91.9 F)
192135.6 C (96.1 F)
192235.6 C (96.1 F)
192332.2 C (90.0 F)
192430.6 C (87.1 F)
192532.2 C (90.0 F)
192632.2 C (90.0 F)
192731.7 C (89.1 F)
192831.7 C (89.1 F)
192933.9 C (93.0 F)
193033.3 C (91.9 F)
193136.1 C (97.0 F)
193238.3 C (100.9 F)
193337.2 C (99.0 F)
193441.7 C (107.1 F)
193535.0 C (95.0 F)
193645.0 C (113.0 F)
193738.3 C (100.9 F)
193832.8 C (91.0 F)
193935.6 C (96.1 F)
194035.0 C (95.0 F)
194133.9 C (93.0 F)
194232.8 C (91.0 F)
194332.8 C (91.0 F)
194436.7 C (98.1 F)
194533.3 C (91.9 F)
194631.7 C (89.1 F)
194736.7 C (98.1 F)
194837.2 C (99.0 F)
194933.3 C (91.9 F)
195032.2 C (90.0 F)
195130.6 C (87.1 F)
195233.9 C (93.0 F)
195334.4 C (93.9 F)
195432.2 C (90.0 F)
195536.7 C (98.1 F)
195634.4 C (93.9 F)
195733.3 C (91.9 F)
195833.3 C (91.9 F)
195932.8 C (91.0 F)
196032.8 C (91.0 F)
196132.8 C (91.0 F)
196231.1 C (88.0 F)
196334.4 C (93.9 F)
196440.0 C (104.0 F)
196533.9 C (93.0 F)
196634.4 C (93.9 F)
196730.6 C (87.1 F)
196832.8 C (91.0 F)
196931.7 C (89.1 F)
197033.3 C (91.9 F)
197133.3 C (91.9 F)
197233.3 C (91.9 F)
197333.9 C (93.0 F)
197435.0 C (95.0 F)
197533.3 C (91.9 F)
197636.1 C (97.0 F)
197734.4 C (93.9 F)
197833.9 C (93.0 F)
197930.6 C (87.1 F)
198032.2 C (90.0 F)
198131.7 C (89.1 F)
198233.3 C (91.9 F)
198335.0 C (95.0 F)
198433.3 C (91.9 F)
198534.4 C (93.9 F)
198633.9 C (93.0 F)
198734.4 C (93.9 F)
198838.3 C (100.9 F)
198936.1 C (97.0 F)
199033.3 C (91.9 F)
199133.9 C (93.0 F)
199232.2 C (90.0 F)
199330.6 C (87.1 F)
199432.2 C (90.0 F)
199537.2 C (99.0 F)
199632.2 C (90.0 F)
199732.2 C (90.0 F)
199831.7 C (89.1 F)
199935.6 C (96.1 F)
200031.1 C (88.0 F)
200133.3 C (91.9 F)
200233.9 C (93.0 F)
200333.9 C (93.0 F)
200430.6 C (87.1 F)
200533.3 C (91.9 F)
200636.1 C (97.0 F)
200732.8 C (91.0 F)
200831.1 C (88.0 F)
200934.4 C (93.9 F)
201032.8 C (91.0 F)
201134.4 C (93.9 F)
201225.0 C (77.0 F)
201333.3 C (91.9 F)
201421.7 C (71.1 F)

Coldest night (TNn)

Coldest night (TNn) at Stanley Wwtp by year The coldest night of the year at Stanley Wwtp, 1903 to 2014. The record is -43.3 C (-45.9 F) in 1951, marked on the chart; the median year is -33.3 C (-27.9 F). -50-40-30-20-1019201940196019802000Record: -43.3 C (-45.9 F) in 1951
The coldest night of the year at Stanley Wwtp, 1903 to 2014. The record is -43.3 C (-45.9 F) in 1951, marked on the chart; the median year is -33.3 C (-27.9 F).
Coldest night (TNn) at Stanley Wwtp by year
YearColdest night (TNn)
1903-32.8 C (-27.0 F)
1904-37.8 C (-36.0 F)
1905-35.0 C (-31.0 F)
1906-33.9 C (-29.0 F)
1907-35.0 C (-31.0 F)
1908-31.1 C (-24.0 F)
1909-38.3 C (-36.9 F)
1910-33.9 C (-29.0 F)
1911-34.4 C (-29.9 F)
1912-40.6 C (-41.1 F)
1913-31.7 C (-25.1 F)
1914-33.3 C (-27.9 F)
1915-40.0 C (-40.0 F)
1916-34.4 C (-29.9 F)
1917-35.6 C (-32.1 F)
1918-36.1 C (-33.0 F)
1919-34.4 C (-29.9 F)
1920-30.6 C (-23.1 F)
1921-29.4 C (-20.9 F)
1922-38.9 C (-38.0 F)
1923-35.0 C (-31.0 F)
1924-36.1 C (-33.0 F)
1925-30.0 C (-22.0 F)
1926-32.2 C (-26.0 F)
1927-36.1 C (-33.0 F)
1928-31.1 C (-24.0 F)
1929-35.6 C (-32.1 F)
1930-37.2 C (-35.0 F)
1931-25.0 C (-13.0 F)
1932-34.4 C (-29.9 F)
1933-36.1 C (-33.0 F)
1934-33.3 C (-27.9 F)
1935-41.7 C (-43.1 F)
1936-42.2 C (-44.0 F)
1937-35.0 C (-31.0 F)
1938-34.4 C (-29.9 F)
1939-29.4 C (-20.9 F)
1940-36.7 C (-34.1 F)
1941-29.4 C (-20.9 F)
1942-31.7 C (-25.1 F)
1943-32.8 C (-27.0 F)
1944-27.2 C (-17.0 F)
1945-30.0 C (-22.0 F)
1946-33.3 C (-27.9 F)
1947-28.9 C (-20.0 F)
1948-35.6 C (-32.1 F)
1949-29.4 C (-20.9 F)
1950-35.0 C (-31.0 F)
1951-43.3 C (-45.9 F)
1952-31.7 C (-25.1 F)
1953-29.4 C (-20.9 F)
1954-36.7 C (-34.1 F)
1955-34.4 C (-29.9 F)
1956-34.4 C (-29.9 F)
1957-36.1 C (-33.0 F)
1958-31.7 C (-25.1 F)
1959-32.2 C (-26.0 F)
1960-30.6 C (-23.1 F)
1961-31.7 C (-25.1 F)
1962-40.6 C (-41.1 F)
1963-38.9 C (-38.0 F)
1964-27.2 C (-17.0 F)
1965-35.6 C (-32.1 F)
1966-33.9 C (-29.0 F)
1967-37.2 C (-35.0 F)
1968-34.4 C (-29.9 F)
1969-31.1 C (-24.0 F)
1970-32.2 C (-26.0 F)
1971-34.4 C (-29.9 F)
1972-37.2 C (-35.0 F)
1973-31.7 C (-25.1 F)
1974-32.2 C (-26.0 F)
1975-31.7 C (-25.1 F)
1976-31.7 C (-25.1 F)
1977-37.8 C (-36.0 F)
1978-30.0 C (-22.0 F)
1979-33.9 C (-29.0 F)
1980-28.9 C (-20.0 F)
1981-29.4 C (-20.9 F)
1982-35.0 C (-31.0 F)
1983-39.4 C (-38.9 F)
1984-37.8 C (-36.0 F)
1985-36.7 C (-34.1 F)
1986-34.4 C (-29.9 F)
1987-29.4 C (-20.9 F)
1988-31.1 C (-24.0 F)
1989-32.2 C (-26.0 F)
1990-33.3 C (-27.9 F)
1991-32.2 C (-26.0 F)
1992-26.7 C (-16.1 F)
1993-29.4 C (-20.9 F)
1994-37.8 C (-36.0 F)
1995-26.7 C (-16.1 F)
1996-30.6 C (-23.1 F)
1997-33.9 C (-29.0 F)
1998-30.0 C (-22.0 F)
1999-30.6 C (-23.1 F)
2000-35.0 C (-31.0 F)
2001-27.2 C (-17.0 F)
2002-23.3 C (-9.9 F)
2003-27.8 C (-18.0 F)
2004-32.8 C (-27.0 F)
2005-28.3 C (-18.9 F)
2006-30.6 C (-23.1 F)
2007-30.6 C (-23.1 F)
2008-31.1 C (-24.0 F)
2009-33.3 C (-27.9 F)
2010-30.6 C (-23.1 F)
2011-33.3 C (-27.9 F)
2012-17.8 C (0.0 F)
2013-32.8 C (-27.0 F)
2014-32.8 C (-27.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Stanley Wwtp by year The wettest day of the year at Stanley Wwtp, 1903 to 2014. The record is 119.9 mm (4.7 in) in 1920, marked on the chart; the median year is 54.4 mm (2.1 in). 05010015019201940196019802000Record: 119.9 mm (4.7 in) in 1920
The wettest day of the year at Stanley Wwtp, 1903 to 2014. The record is 119.9 mm (4.7 in) in 1920, marked on the chart; the median year is 54.4 mm (2.1 in).
Wettest day (Rx1day) at Stanley Wwtp by year
YearWettest day (Rx1day)
190383.3 mm (3.3 in)
190449.0 mm (1.9 in)
190545.7 mm (1.8 in)
190642.7 mm (1.7 in)
190749.0 mm (1.9 in)
190853.6 mm (2.1 in)
190990.7 mm (3.6 in)
191056.4 mm (2.2 in)
1911103.4 mm (4.1 in)
191271.1 mm (2.8 in)
191339.9 mm (1.6 in)
191443.9 mm (1.7 in)
191576.2 mm (3.0 in)
191651.8 mm (2.0 in)
191736.3 mm (1.4 in)
191839.9 mm (1.6 in)
191965.8 mm (2.6 in)
1920119.9 mm (4.7 in)
192155.1 mm (2.2 in)
192245.0 mm (1.8 in)
192361.0 mm (2.4 in)
192458.4 mm (2.3 in)
192565.8 mm (2.6 in)
192655.9 mm (2.2 in)
192749.0 mm (1.9 in)
192861.0 mm (2.4 in)
192938.9 mm (1.5 in)
193057.2 mm (2.3 in)
193157.4 mm (2.3 in)
193257.2 mm (2.3 in)
193338.1 mm (1.5 in)
193460.5 mm (2.4 in)
1935112.3 mm (4.4 in)
193629.0 mm (1.1 in)
193728.4 mm (1.1 in)
193876.7 mm (3.0 in)
193980.8 mm (3.2 in)
194071.4 mm (2.8 in)
194155.9 mm (2.2 in)
194255.1 mm (2.2 in)
194369.1 mm (2.7 in)
194429.0 mm (1.1 in)
194562.0 mm (2.4 in)
194642.7 mm (1.7 in)
194758.4 mm (2.3 in)
194839.4 mm (1.6 in)
194952.1 mm (2.1 in)
195037.6 mm (1.5 in)
195154.9 mm (2.2 in)
195249.0 mm (1.9 in)
195362.0 mm (2.4 in)
1954107.7 mm (4.2 in)
195569.9 mm (2.8 in)
195664.5 mm (2.5 in)
195746.5 mm (1.8 in)
195887.6 mm (3.4 in)
195999.3 mm (3.9 in)
196070.4 mm (2.8 in)
196146.7 mm (1.8 in)
196254.4 mm (2.1 in)
196361.0 mm (2.4 in)
196440.1 mm (1.6 in)
196549.3 mm (1.9 in)
196659.4 mm (2.3 in)
196742.4 mm (1.7 in)
196857.4 mm (2.3 in)
196946.5 mm (1.8 in)
197052.8 mm (2.1 in)
197155.6 mm (2.2 in)
197248.3 mm (1.9 in)
197358.4 mm (2.3 in)
197430.7 mm (1.2 in)
197551.3 mm (2.0 in)
197629.5 mm (1.2 in)
197753.8 mm (2.1 in)
197857.2 mm (2.3 in)
197947.2 mm (1.9 in)
1980115.1 mm (4.5 in)
198147.8 mm (1.9 in)
198255.9 mm (2.2 in)
198367.1 mm (2.6 in)
198484.6 mm (3.3 in)
198551.3 mm (2.0 in)
1986104.1 mm (4.1 in)
198752.1 mm (2.1 in)
198823.4 mm (0.9 in)
198972.6 mm (2.9 in)
199068.3 mm (2.7 in)
199153.6 mm (2.1 in)
199244.7 mm (1.8 in)
199355.6 mm (2.2 in)
199438.1 mm (1.5 in)
199544.7 mm (1.8 in)
199644.5 mm (1.8 in)
199735.3 mm (1.4 in)
199845.7 mm (1.8 in)
199965.5 mm (2.6 in)
2000108.5 mm (4.3 in)
200198.6 mm (3.9 in)
200248.8 mm (1.9 in)
200337.1 mm (1.5 in)
200464.3 mm (2.5 in)
200544.2 mm (1.7 in)
200672.4 mm (2.9 in)
200742.9 mm (1.7 in)
200829.2 mm (1.1 in)
200935.6 mm (1.4 in)
201048.0 mm (1.9 in)
201154.4 mm (2.1 in)
201223.1 mm (0.9 in)
201358.4 mm (2.3 in)
20143.6 mm (0.14 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Stanley Wwtp by year The wettest five days of the year at Stanley Wwtp, 1903 to 2014. The record is 237.8 mm (9.4 in) in 1980, marked on the chart; the median year is 84.9 mm (3.3 in). 010020030019201940196019802000Record: 237.8 mm (9.4 in) in 1980
The wettest five days of the year at Stanley Wwtp, 1903 to 2014. The record is 237.8 mm (9.4 in) in 1980, marked on the chart; the median year is 84.9 mm (3.3 in).
Wettest five days (Rx5day) at Stanley Wwtp by year
YearWettest five days (Rx5day)
1903167.7 mm (6.6 in)
190485.7 mm (3.4 in)
1905123.6 mm (4.9 in)
190681.8 mm (3.2 in)
190764.5 mm (2.5 in)
190861.0 mm (2.4 in)
1909117.9 mm (4.6 in)
191068.3 mm (2.7 in)
1911158.2 mm (6.2 in)
191287.6 mm (3.4 in)
191380.5 mm (3.2 in)
191473.2 mm (2.9 in)
1915103.5 mm (4.1 in)
191667.0 mm (2.6 in)
191768.1 mm (2.7 in)
191894.5 mm (3.7 in)
191979.3 mm (3.1 in)
1920141.7 mm (5.6 in)
192176.2 mm (3.0 in)
192283.1 mm (3.3 in)
1923112.1 mm (4.4 in)
192472.4 mm (2.9 in)
1925105.2 mm (4.1 in)
1926119.4 mm (4.7 in)
192766.6 mm (2.6 in)
1928111.8 mm (4.4 in)
192968.1 mm (2.7 in)
193064.6 mm (2.5 in)
193183.0 mm (3.3 in)
193268.6 mm (2.7 in)
193345.2 mm (1.8 in)
1934117.4 mm (4.6 in)
1935197.7 mm (7.8 in)
193644.1 mm (1.7 in)
193788.3 mm (3.5 in)
1938163.9 mm (6.5 in)
1939108.8 mm (4.3 in)
1940123.5 mm (4.9 in)
1941111.3 mm (4.4 in)
1942122.0 mm (4.8 in)
194372.8 mm (2.9 in)
194450.8 mm (2.0 in)
1945101.1 mm (4.0 in)
194688.4 mm (3.5 in)
194750.9 mm (2.0 in)
194850.6 mm (2.0 in)
194964.0 mm (2.5 in)
195037.6 mm (1.5 in)
195183.1 mm (3.3 in)
195267.6 mm (2.7 in)
195398.6 mm (3.9 in)
1954175.8 mm (6.9 in)
1955117.8 mm (4.6 in)
195684.1 mm (3.3 in)
195769.7 mm (2.7 in)
1958152.9 mm (6.0 in)
1959101.1 mm (4.0 in)
196093.2 mm (3.7 in)
196155.6 mm (2.2 in)
1962108.2 mm (4.3 in)
196397.3 mm (3.8 in)
196473.1 mm (2.9 in)
196569.1 mm (2.7 in)
196680.2 mm (3.2 in)
196777.2 mm (3.0 in)
1968132.1 mm (5.2 in)
196980.2 mm (3.2 in)
197081.8 mm (3.2 in)
1971100.1 mm (3.9 in)
197278.1 mm (3.1 in)
197393.9 mm (3.7 in)
197471.6 mm (2.8 in)
197592.7 mm (3.6 in)
197643.0 mm (1.7 in)
197793.4 mm (3.7 in)
1978101.7 mm (4.0 in)
197982.1 mm (3.2 in)
1980237.8 mm (9.4 in)
198164.8 mm (2.6 in)
198275.4 mm (3.0 in)
198380.0 mm (3.1 in)
1984113.3 mm (4.5 in)
198596.8 mm (3.8 in)
1986132.1 mm (5.2 in)
1987101.9 mm (4.0 in)
198842.5 mm (1.7 in)
198990.6 mm (3.6 in)
1990109.8 mm (4.3 in)
1991100.0 mm (3.9 in)
199269.4 mm (2.7 in)
1993121.9 mm (4.8 in)
199464.8 mm (2.6 in)
1995120.6 mm (4.7 in)
199654.4 mm (2.1 in)
199753.6 mm (2.1 in)
199881.8 mm (3.2 in)
199987.6 mm (3.4 in)
2000137.2 mm (5.4 in)
2001144.9 mm (5.7 in)
200287.4 mm (3.4 in)
200362.9 mm (2.5 in)
200490.9 mm (3.6 in)
200558.5 mm (2.3 in)
2006109.6 mm (4.3 in)
200776.1 mm (3.0 in)
200875.2 mm (3.0 in)
200954.1 mm (2.1 in)
201093.5 mm (3.7 in)
2011114.3 mm (4.5 in)
201257.1 mm (2.2 in)
201385.6 mm (3.4 in)
20143.6 mm (0.14 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Stanley Wwtp by year The longest dry spell of the year at Stanley Wwtp, 1903 to 2014. The record is 56 days in 1978, marked on the chart; the median year is 22 days. 020406019201940196019802000Record: 56 days in 1978
The longest dry spell of the year at Stanley Wwtp, 1903 to 2014. The record is 56 days in 1978, marked on the chart; the median year is 22 days.
Longest dry spell (CDD) at Stanley Wwtp by year
YearLongest dry spell (CDD)
190322 days
190421 days
190524 days
190615 days
190723 days
190825 days
190920 days
191048 days
191128 days
191248 days
191332 days
191446 days
191523 days
191617 days
191725 days
191823 days
191914 days
192017 days
192117 days
192215 days
192325 days
192434 days
192519 days
192613 days
192716 days
192822 days
192914 days
193029 days
193119 days
193223 days
193326 days
193425 days
193516 days
193630 days
193723 days
193824 days
193926 days
194018 days
194117 days
194227 days
194346 days
194427 days
194516 days
194621 days
194716 days
194818 days
194921 days
195014 days
195117 days
195234 days
195344 days
195421 days
195526 days
195619 days
195721 days
195833 days
195921 days
196026 days
196145 days
196219 days
196317 days
196437 days
196518 days
196620 days
196724 days
196827 days
196936 days
197025 days
197114 days
197217 days
197317 days
197419 days
197516 days
197630 days
197713 days
197856 days
197916 days
198033 days
198124 days
198211 days
198319 days
198422 days
198512 days
198622 days
198722 days
198828 days
198924 days
199022 days
199130 days
199220 days
199320 days
199425 days
199523 days
199612 days
199722 days
199827 days
199921 days
200017 days
200116 days
200241 days
200324 days
200419 days
200516 days
200619 days
200732 days
200818 days
200931 days
201022 days
201119 days
201216 days
201320 days
201410 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

82 years with a frost

Across 82 years with a frost, the median last spring frost at Stanley Wwtp falls on 16 May and the median first autumn frost on 25 September, which leaves a median of 126 days between them.

In 1979 to 2013 the median growing season was 137 days. That is 15 days more than in 1904 to 1943.

Fitted over all years, the growing season changes by +1.4 days per decade at this station.

Frost dates and growing season at Stanley Wwtp
MeasureMedian, all yearsEarliest period (1904 to 1943)Recent period (1979 to 2013)Recent against earliestFitted trend
Last spring frost16 May16 May15 May1 day earlier-0.4 days per decade
First autumn frost25 September20 September29 September9 days later+1.0 days per decade
Growing days126 days122 days137 days15 days more+1.4 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

97 years, 1904 to 2013

A day with at least 54.2 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 130.2 mm (5.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Stanley Wwtp: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years54.2 mm (2.1 in)
5 years72.1 mm (2.8 in)
10 years84.9 mm (3.3 in)
25 years102.2 mm (4.0 in)
50 years115.9 mm (4.6 in)
100 years130.2 mm (5.1 in)Longer than the 97 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, 97 years of values from 1904 to 2013.

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: 119.9 mm (4.7 in) in 1920; 115.1 mm (4.5 in) in 1980; 112.3 mm (4.4 in) in 1935.

Station Changes

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

Download the Data

  • Data for Stanley Wwtp standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Stanley Wwtp 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).