Built 2026-10-16 (16 October 2026)

Mayville Weather Records (USC00325660)

Record envelope, standing records and threshold days for Mayville (USC00325660), North Dakota, United States, with 134 years of record.

Key Facts for Mayville

  • Mayville (USC00325660) is a weather station in North Dakota, United States at 47.50 latitude and -97.35 longitude, 300 m (983 ft) above sea level.
  • The station reports from 1893 to 2026, 134 years of record.
  • 1,464 records set at Mayville still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Mayville set a daily record precipitation of 55.4 mm (2.2 in) on 29 September 2026 (provisional).

Provisional Records

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

About the Station

  • Location: North Dakota, United States, 47.50 latitude, -97.35 longitude.
  • Elevation: 300 m (983 ft).
  • Period of record: 1893 to 2026, 134 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

2 days at or beyond a record
Daily record high and record low at Mayville, with 2026 drawn through them The band shows the record high and record low for each calendar day at Mayville. The lines show the 2026 daily maximum and minimum. 2 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 Mayville. The lines show the 2026 daily maximum and minimum. 2 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Mayville, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan13.3 C (55.9 F)-40.6 C (-41.1 F)1.7 C (35.1 F)-31.7 C (-25.1 F)
Feb15.6 C (60.1 F)-40.0 C (-40.0 F)6.1 C (43.0 F)-25.0 C (-13.0 F)
Mar27.2 C (81.0 F)-35.6 C (-32.1 F)11.7 C (53.1 F)-23.3 C (-9.9 F)
Apr37.2 C (99.0 F)-22.8 C (-9.0 F)25.6 C (78.1 F)-11.7 C (10.9 F)
May40.0 C (104.0 F)-11.7 C (10.9 F)30.6 C (87.1 F)-6.1 C (21.0 F)
Jun40.6 C (105.1 F)-6.1 C (21.0 F)29.4 C (84.9 F)5.6 C (42.1 F)
Jul45.6 C (114.1 F)-3.3 C (26.1 F)32.8 C (91.0 F)7.2 C (45.0 F)
Aug40.0 C (104.0 F)-1.1 C (30.0 F)28.3 C (82.9 F)5.0 C (41.0 F)
Sep38.9 C (102.0 F)-9.4 C (15.1 F)26.7 C (80.1 F)1.7 C (35.1 F)
Oct34.4 C (93.9 F)-22.8 C (-9.0 F)26.1 C (79.0 F)-1.1 C (30.0 F)
Nov26.1 C (79.0 F)-34.4 C (-29.9 F)n/an/a
Dec13.9 C (57.0 F)-37.8 C (-36.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Mayville by the year they were set 1,464 records at Mayville still stand. 1911 holds the most, with 58. 02040601893: 141896: 171897: 151898: 71899: 171900: 181901: 161902: 121903: 401904: 181905: 101906: 31907: 181908: 121909: 181910: 511911: 581912: 111913: 111914: 241915: 121916: 121917: 281918: 81919: 211920: 81921: 111922: 71923: 51924: 171925: 191926: 141927: 121928: 181929: 171930: 151931: 231932: 111933: 121934: 251935: 191936: 561937: 91938: 101939: 221940: 91941: 161942: 101943: 91944: 51945: 141946: 101947: 151948: 141949: 51950: 131951: 71952: 121953: 91954: 41955: 131956: 51957: 51958: 131959: 131960: 51961: 61962: 101963: 201964: 211965: 61966: 91967: 71968: 71969: 111970: 41971: 31972: 101973: 41974: 81975: 41976: 121977: 181978: 51979: 101980: 91981: 81982: 71983: 221984: 61985: 91986: 61987: 61988: 12002: 42003: 102004: 102005: 62006: 92007: 62008: 72009: 52010: 42011: 52012: 82013: 82014: 132015: 102016: 72017: 112018: 142019: 92020: 82021: 72022: 112023: 142024: 42025: 162026: 21893190719191931194319551967197920042016
1,464 records at Mayville still stand. 1911 holds the most, with 58.
Standing records at Mayville by the year they were set
Year setStanding records
189314
189617
189715
18987
189917
190018
190116
190212
190340
190418
190510
19063
190718
190812
190918
191051
191158
191211
191311
191424
191512
191612
191728
19188
191921
19208
192111
19227
19235
192417
192519
192614
192712
192818
192917
193015
193123
193211
193312
193425
193519
193656
19379
193810
193922
19409
194116
194210
19439
19445
194514
194610
194715
194814
19495
195013
19517
195212
19539
19544
195513
19565
19575
195813
195913
19605
19616
196210
196320
196421
19656
19669
19677
19687
196911
19704
19713
197210
19734
19748
19754
197612
197718
19785
197910
19809
19818
19827
198322
19846
19859
19866
19876
19881
20024
200310
200410
20056
20069
20076
20087
20095
20104
20115
20128
20138
201413
201510
20167
201711
201814
20199
20208
20217
202211
202314
20244
202516
20262

All-Time Record Progression

10 new records
When Mayville set new all-time records 10 all-time records were set at Mayville between 6 July 1936 and 14 March 2019. Each dot is a new record. Record high maximum temperatureRecord high minimum temperatureRecord snow depthRecord daily snowfallRecord daily precipitation6 July 1936: Record high maximum temperature 45.6 C (114.1 F)16 July 1936: Record high minimum temperature 31.7 C (89.1 F)1 March 1948: Record snow depth 68.6 cm (27.0 in)6 March 1948: Record snow depth 71.1 cm (28.0 in)20 November 1977: Record daily snowfall 27.9 cm (11.0 in)22 January 1982: Record daily snowfall 30.5 cm (12.0 in)22 July 1987: Record daily precipitation 159.0 mm (6.3 in)23 March 2011: Record daily snowfall 49.5 cm (19.5 in)10 March 2019: Record snow depth 86.4 cm (34.0 in)14 March 2019: Record snow depth 91.4 cm (36.0 in)19501965198019952010
10 all-time records were set at Mayville between 6 July 1936 and 14 March 2019. Each dot is a new record.
When Mayville set new all-time records
DateKindDetail
1936-07-06Record high maximum temperatureRecord high maximum temperature 45.6 C (114.1 F)
1936-07-16Record high minimum temperatureRecord high minimum temperature 31.7 C (89.1 F)
1948-03-01Record snow depthRecord snow depth 68.6 cm (27.0 in)
1948-03-06Record snow depthRecord snow depth 71.1 cm (28.0 in)
1977-11-20Record daily snowfallRecord daily snowfall 27.9 cm (11.0 in)
1982-01-22Record daily snowfallRecord daily snowfall 30.5 cm (12.0 in)
1987-07-22Record daily precipitationRecord daily precipitation 159.0 mm (6.3 in)
2011-03-23Record daily snowfallRecord daily snowfall 49.5 cm (19.5 in)
2019-03-10Record snow depthRecord snow depth 86.4 cm (34.0 in)
2019-03-14Record snow depthRecord snow depth 91.4 cm (36.0 in)

Wettest Day of Each Month

Jul: 159.0 mm (6.3 in)
Record daily precipitation for each month at Mayville The wettest day on record for each calendar month at Mayville. The most was 159.0 mm (6.3 in) on 22 July 1987. 050100150200 Jan: 19.1 mm (0.8 in), 17 January 1907 Jan Feb: 21.8 mm (0.9 in), 24 February 1977 Feb Mar: 43.4 mm (1.7 in), 23 March 2011 Mar Apr: 59.7 mm (2.4 in), 23 April 2022 Apr May: 56.1 mm (2.2 in), 4 May 1896 May Jun: 76.2 mm (3.0 in), 14 June 1935 Jun Jul: 159.0 mm (6.3 in), 22 July 1987 Jul Aug: 132.1 mm (5.2 in), 19 August 1918 Aug Sep: 125.2 mm (4.9 in), 8 September 1962 Sep Oct: 71.9 mm (2.8 in), 9 October 1982 Oct Nov: 39.1 mm (1.5 in), 8 November 1986 Nov Dec: 24.9 mm (1.0 in), 30 December 1972 Dec
The wettest day on record for each calendar month at Mayville. The most was 159.0 mm (6.3 in) on 22 July 1987.
Record daily precipitation for each month at Mayville
MonthRecord daily precipitation (mm)Date
Jan19.1 mm (0.8 in)17 January 1907
Feb21.8 mm (0.9 in)24 February 1977
Mar43.4 mm (1.7 in)23 March 2011
Apr59.7 mm (2.4 in)23 April 2022
May56.1 mm (2.2 in)4 May 1896
Jun76.2 mm (3.0 in)14 June 1935
Jul159.0 mm (6.3 in)22 July 1987
Aug132.1 mm (5.2 in)19 August 1918
Sep125.2 mm (4.9 in)8 September 1962
Oct71.9 mm (2.8 in)9 October 1982
Nov39.1 mm (1.5 in)8 November 1986
Dec24.9 mm (1.0 in)30 December 1972

Period of Record Coverage

1893 to 2026
Days with data per year at Mayville 119 years of record at Mayville, 1893 to 2026. 19 years have data for under 90 percent of days and are left out of rankings: 1893, 1896, 1897, 1898, 1899, 1902, 1904, 1906 and others. 1893: 208 of 365 days1896: 251 of 366 days1897: 257 of 365 days1898: 224 of 365 days1899: 293 of 365 days1900: 347 of 365 days1901: 345 of 365 days1902: 274 of 365 days1903: 340 of 365 days1904: 264 of 366 days1905: 331 of 365 days1906: 143 of 365 days1907: 292 of 365 days1908: 340 of 366 days1909: 327 of 365 days1910: 207 of 365 days1911: 344 of 365 days1912: 365 of 366 days1913: 364 of 365 days1914: 365 of 365 days1915: 363 of 365 days1916: 366 of 366 days1917: 364 of 365 days1918: 351 of 365 days1919: 362 of 365 days1920: 352 of 366 days1921: 352 of 365 days1922: 268 of 365 days1923: 206 of 365 days1924: 344 of 366 days1925: 364 of 365 days1926: 358 of 365 days1927: 362 of 365 days1928: 364 of 366 days1929: 361 of 365 days1930: 354 of 365 days1931: 348 of 365 days1932: 329 of 366 days1933: 355 of 365 days1934: 363 of 365 days1935: 361 of 365 days1936: 364 of 366 days1937: 360 of 365 days1938: 359 of 365 days1939: 360 of 365 days1940: 360 of 366 days1941: 332 of 365 days1942: 271 of 365 days1943: 340 of 365 days1944: 363 of 366 days1945: 364 of 365 days1946: 364 of 365 days1947: 364 of 365 days1948: 365 of 366 days1949: 361 of 365 days1950: 359 of 365 days1951: 363 of 365 days1952: 364 of 366 days1953: 364 of 365 days1954: 364 of 365 days1955: 364 of 365 days1956: 365 of 366 days1957: 365 of 365 days1958: 364 of 365 days1959: 363 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 364 of 365 days1968: 365 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: 364 of 366 days1977: 364 of 365 days1978: 364 of 365 days1979: 358 of 365 days1980: 366 of 366 days1981: 362 of 365 days1982: 315 of 365 days1983: 335 of 365 days1984: 351 of 366 days1985: 336 of 365 days1986: 354 of 365 days1987: 353 of 365 days1988: 30 of 366 days2002: 245 of 365 days2003: 365 of 365 days2004: 365 of 366 days2005: 363 of 365 days2006: 364 of 365 days2007: 337 of 365 days2008: 362 of 366 days2009: 364 of 365 days2010: 364 of 365 days2011: 363 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: 364 of 365 days2019: 364 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 364 of 365 days2023: 365 of 365 days2024: 361 of 366 days2025: 346 of 365 days2026: 264 of 365 days19051920193519501965198020102025
119 years of record at Mayville, 1893 to 2026. 19 years have data for under 90 percent of days and are left out of rankings: 1893, 1896, 1897, 1898, 1899, 1902, 1904, 1906 and others.
Days with data per year at Mayville
YearDays with dataShare of yearComplete
189320857%No
189625169%No
189725770%No
189822461%No
189929380%No
190034795%Yes
190134595%Yes
190227475%No
190334093%Yes
190426472%No
190533191%Yes
190614339%No
190729280%No
190834093%Yes
190932790%No
191020757%No
191134494%Yes
1912365100%Yes
1913364100%Yes
1914365100%Yes
191536399%Yes
1916366100%Yes
1917364100%Yes
191835196%Yes
191936299%Yes
192035296%Yes
192135296%Yes
192226873%No
192320656%No
192434494%Yes
1925364100%Yes
192635898%Yes
192736299%Yes
192836499%Yes
192936199%Yes
193035497%Yes
193134895%Yes
193232990%No
193335597%Yes
193436399%Yes
193536199%Yes
193636499%Yes
193736099%Yes
193835998%Yes
193936099%Yes
194036098%Yes
194133291%Yes
194227174%No
194334093%Yes
194436399%Yes
1945364100%Yes
1946364100%Yes
1947364100%Yes
1948365100%Yes
194936199%Yes
195035998%Yes
195136399%Yes
195236499%Yes
1953364100%Yes
1954364100%Yes
1955364100%Yes
1956365100%Yes
1957365100%Yes
1958364100%Yes
195936399%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967364100%Yes
1968365100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
197636499%Yes
1977364100%Yes
1978364100%Yes
197935898%Yes
1980366100%Yes
198136299%Yes
198231586%No
198333592%Yes
198435196%Yes
198533692%Yes
198635497%Yes
198735397%Yes
1988308%No
200224567%No
2003365100%Yes
2004365100%Yes
200536399%Yes
2006364100%Yes
200733792%Yes
200836299%Yes
2009364100%Yes
2010364100%Yes
201136399%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018364100%Yes
2019364100%Yes
2020366100%Yes
2021365100%Yes
2022364100%Yes
2023365100%Yes
202436199%Yes
202534695%Yes
202626472%No

Latest Records

20
Latest records at Mayville
DateStationRecordValueBeat old record byOld record stoodSignificance
29 September 2026Mayville, USdaily rain (Provisional)55.4 mm (2.2 in)33.6 mm (1.3 in)60 years56 of 100 (Notable)
15 September 2026Mayville, USdaily rain (Provisional)44.5 mm (1.8 in)17.8 mm (0.7 in)43 years36 of 100 (Notable)
21 May 2026Mayville, USdaily low min-1.7 C (28.9 F)0.6 C (1.1 F)132 years41 of 100 (Notable)
21 April 2026Mayville, USdaily low min-10.0 C (14.0 F)1.7 C (3.1 F)12 years16 of 100 (Routine)
4 April 2026Mayville, USdaily snowfall14.0 cm (5.5 in)9.4 cm (3.7 in)80 years51 of 100 (Notable)
13 March 2026Mayville, USdaily snowfall10.2 cm (4.0 in)2.6 cm (1.0 in)116 years45 of 100 (Notable)
18 February 2026Mayville, USdaily rain18.5 mm (0.7 in)12.7 mm (0.5 in)40 years20 of 100 (Routine)
29 December 2025Mayville, USdaily snowfall15.2 cm (6.0 in)1.7 cm (0.7 in)6 years15 of 100 (Routine)
10 December 2025Mayville, USdaily snowfall11.4 cm (4.5 in)2.5 cm (1.0 in)20 years23 of 100 (Routine)
21 October 2025Mayville, USdaily rain14.0 mm (0.6 in)3.8 mm (0.15 in)124 years20 of 100 (Routine)
7 September 2025Mayville, USdaily low min-0.6 C (30.9 F)1.7 C (3.1 F)0 years13 of 100 (Routine)
6 September 2025Mayville, USdaily low max12.8 C (55.0 F)0.5 C (0.9 F)60 years28 of 100 (Routine)
5 September 2025Mayville, USdaily low max7.8 C (46.0 F)5.5 C (9.9 F)114 years49 of 100 (Notable)
4 September 2025Mayville, USdaily low max11.7 C (53.1 F)2.2 C (4.0 F)68 years33 of 100 (Routine)
18 August 2025Mayville, USdaily low max17.2 C (63.0 F)0.6 C (1.1 F)50 years26 of 100 (Routine)
5 August 2025Mayville, USdaily low max19.4 C (66.9 F)0.6 C (1.1 F)74 years33 of 100 (Routine)
4 August 2025Mayville, USdaily low max19.4 C (66.9 F)2.3 C (4.1 F)112 years45 of 100 (Notable)
31 July 2025Mayville, USdaily low max (Tie)20.0 C (68.0 F)tie120 years10 of 100 (Routine)
23 July 2025Mayville, USdaily rain52.1 mm (2.1 in)25.4 mm (1.0 in)14 years34 of 100 (Routine)
20 July 2025Mayville, USdaily low max (Tie)20.6 C (69.1 F)tie127 years10 of 100 (Routine)

Climate Trend

90 complete years, 1900 to 2025
Annual mean temperature at Mayville as warming stripes, 1900 to 2025 One stripe for each of 90 complete years at Mayville, 1900 to 2025. Blue stripes are years cooler than the station's own mean of 4.7 C (40.5 F); red stripes are warmer. The coolest year was 2019, at 2.1 C (35.7 F), and the warmest was 1987, at 8.0 C (46.4 F). The strongest colour marks a difference of 3.3 C (5.9 F). 1900: 5.6 C, +0.8 C from the station mean1901: 4.9 C, +0.2 C from the station mean1911: 6.0 C, +1.2 C from the station mean1912: 4.4 C, -0.3 C from the station mean1913: 5.2 C, +0.5 C from the station mean1914: 5.3 C, +0.5 C from the station mean1915: 5.1 C, +0.4 C from the station mean1916: 3.1 C, -1.6 C from the station mean1917: 2.7 C, -2.0 C from the station mean1919: 4.2 C, -0.6 C from the station mean1920: 3.4 C, -1.3 C from the station mean1921: 4.9 C, +0.2 C from the station mean1925: 5.2 C, +0.4 C from the station mean1926: 5.0 C, +0.2 C from the station mean1927: 4.2 C, -0.6 C from the station mean1928: 6.0 C, +1.2 C from the station mean1929: 3.7 C, -1.0 C from the station mean1930: 5.3 C, +0.6 C from the station mean1931: 7.2 C, +2.4 C from the station mean1933: 4.8 C, +0.1 C from the station mean1934: 6.7 C, +1.9 C from the station mean1935: 4.8 C, +0.1 C from the station mean1936: 4.8 C, 0.0 C from the station mean1938: 6.0 C, +1.3 C from the station mean1939: 5.8 C, +1.1 C from the station mean1940: 5.0 C, +0.3 C from the station mean1944: 5.8 C, +1.1 C from the station mean1945: 4.6 C, -0.1 C from the station mean1946: 5.1 C, +0.4 C from the station mean1947: 5.0 C, +0.2 C from the station mean1948: 4.6 C, -0.2 C from the station mean1949: 5.0 C, +0.3 C from the station mean1950: 2.3 C, -2.4 C from the station mean1951: 3.0 C, -1.7 C from the station mean1952: 5.6 C, +0.9 C from the station mean1953: 6.3 C, +1.6 C from the station mean1954: 5.5 C, +0.8 C from the station mean1955: 4.4 C, -0.3 C from the station mean1956: 4.2 C, -0.6 C from the station mean1957: 5.2 C, +0.4 C from the station mean1958: 5.5 C, +0.8 C from the station mean1959: 5.0 C, +0.3 C from the station mean1960: 4.6 C, -0.1 C from the station mean1961: 5.4 C, +0.7 C from the station mean1962: 4.7 C, -0.1 C from the station mean1963: 6.1 C, +1.3 C from the station mean1964: 5.0 C, +0.3 C from the station mean1965: 3.6 C, -1.2 C from the station mean1966: 3.5 C, -1.2 C from the station mean1967: 4.2 C, -0.5 C from the station mean1968: 4.8 C, +0.1 C from the station mean1969: 4.4 C, -0.3 C from the station mean1970: 4.3 C, -0.4 C from the station mean1971: 4.7 C, 0.0 C from the station mean1972: 3.9 C, -0.9 C from the station mean1973: 6.3 C, +1.6 C from the station mean1974: 4.6 C, -0.1 C from the station mean1975: 5.0 C, +0.3 C from the station mean1976: 5.6 C, +0.9 C from the station mean1977: 5.4 C, +0.6 C from the station mean1978: 4.0 C, -0.7 C from the station mean1979: 3.1 C, -1.7 C from the station mean1980: 5.6 C, +0.9 C from the station mean1981: 6.5 C, +1.7 C from the station mean1982: 3.7 C, -1.0 C from the station mean1983: 5.0 C, +0.2 C from the station mean1984: 5.1 C, +0.3 C from the station mean1986: 5.8 C, +1.1 C from the station mean1987: 8.0 C, +3.3 C from the station mean2004: 4.3 C, -0.5 C from the station mean2005: 5.4 C, +0.7 C from the station mean2006: 6.2 C, +1.5 C from the station mean2008: 3.0 C, -1.8 C from the station mean2009: 3.2 C, -1.5 C from the station mean2010: 5.0 C, +0.3 C from the station mean2011: 4.7 C, -0.1 C from the station mean2012: 6.2 C, +1.5 C from the station mean2013: 2.8 C, -1.9 C from the station mean2014: 2.9 C, -1.9 C from the station mean2015: 5.4 C, +0.6 C from the station mean2016: 6.0 C, +1.3 C from the station mean2017: 4.6 C, -0.1 C from the station mean2018: 3.1 C, -1.6 C from the station mean2019: 2.1 C, -2.7 C from the station mean2020: 4.1 C, -0.7 C from the station mean2021: 5.1 C, +0.3 C from the station mean2022: 2.7 C, -2.1 C from the station mean2023: 3.5 C, -1.3 C from the station mean2024: 4.5 C, -0.2 C from the station mean2025: 2.7 C, -2.0 C from the station mean1900191019201930194019501960197019801990200020102020
One stripe for each of 90 complete years at Mayville, 1900 to 2025. Blue stripes are years cooler than the station's own mean of 4.7 C (40.5 F); red stripes are warmer. The coolest year was 2019, at 2.1 C (35.7 F), and the warmest was 1987, at 8.0 C (46.4 F). The strongest colour marks a difference of 3.3 C (5.9 F).
Annual mean temperature at Mayville as warming stripes, 1900 to 2025
YearAnnual mean temperatureDifference from the station mean
19005.6 C+0.84 C
19014.9 C+0.18 C
19116.0 C+1.24 C
19124.4 C-0.32 C
19135.2 C+0.46 C
19145.3 C+0.53 C
19155.1 C+0.36 C
19163.1 C-1.63 C
19172.7 C-2.02 C
19194.2 C-0.57 C
19203.4 C-1.33 C
19214.9 C+0.17 C
19255.2 C+0.41 C
19265.0 C+0.23 C
19274.2 C-0.58 C
19286.0 C+1.23 C
19293.7 C-1.04 C
19305.3 C+0.60 C
19317.2 C+2.42 C
19334.8 C+0.09 C
19346.7 C+1.94 C
19354.8 C+0.08 C
19364.8 C+0.04 C
19386.0 C+1.28 C
19395.8 C+1.09 C
19405.0 C+0.27 C
19445.8 C+1.06 C
19454.6 C-0.12 C
19465.1 C+0.36 C
19475.0 C+0.25 C
19484.6 C-0.15 C
19495.0 C+0.27 C
19502.3 C-2.41 C
19513.0 C-1.74 C
19525.6 C+0.86 C
19536.3 C+1.59 C
19545.5 C+0.79 C
19554.4 C-0.34 C
19564.2 C-0.55 C
19575.2 C+0.44 C
19585.5 C+0.80 C
19595.0 C+0.30 C
19604.6 C-0.11 C
19615.4 C+0.70 C
19624.7 C-0.09 C
19636.1 C+1.34 C
19645.0 C+0.29 C
19653.6 C-1.17 C
19663.5 C-1.20 C
19674.2 C-0.53 C
19684.8 C+0.06 C
19694.4 C-0.32 C
19704.3 C-0.41 C
19714.7 C-0.04 C
19723.9 C-0.87 C
19736.3 C+1.56 C
19744.6 C-0.14 C
19755.0 C+0.26 C
19765.6 C+0.86 C
19775.4 C+0.65 C
19784.0 C-0.74 C
19793.1 C-1.66 C
19805.6 C+0.86 C
19816.5 C+1.73 C
19823.7 C-1.00 C
19835.0 C+0.21 C
19845.1 C+0.34 C
19865.8 C+1.10 C
19878.0 C+3.28 C
20044.3 C-0.47 C
20055.4 C+0.68 C
20066.2 C+1.47 C
20083.0 C-1.75 C
20093.2 C-1.51 C
20105.0 C+0.26 C
20114.7 C-0.08 C
20126.2 C+1.49 C
20132.8 C-1.94 C
20142.9 C-1.87 C
20155.4 C+0.62 C
20166.0 C+1.27 C
20174.6 C-0.12 C
20183.1 C-1.62 C
20192.1 C-2.66 C
20204.1 C-0.66 C
20215.1 C+0.35 C
20222.7 C-2.09 C
20233.5 C-1.29 C
20244.5 C-0.22 C
20252.7 C-2.04 C

The annual mean temperature here has fallen by 0.07 C (0.00 to 0.14) per decade over 1900 to 2025. In Fahrenheit: 0.13 F (0.00 to 0.25) per decade. The slope is a straight line fitted to 90 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Mayville
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.07 C (-0.14 to 0.00) per decade-0.13 F (-0.25 to 0.00) per decade1900 to 202590Fall
Mean daily maximum-0.1 C (-0.2 to -0.1) per decade-0.3 F (-0.4 to -0.1) per decade1900 to 202590Fall
Mean daily minimum0.01 C (-0.06 to 0.08) per decade0.02 F (-0.11 to 0.14) per decade1900 to 202590Not 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

1893 to 2026
Yearly extremes at Mayville: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)45.6 C (114.1 F)193636.1 C (97.0 F)119
Coldest night (TNn)-40.6 C (-41.1 F)1912-34.4 C (-29.9 F)119
Wettest day (Rx1day)159.0 mm (6.3 in)198745.0 mm (1.8 in)119
Wettest five days (Rx5day)212.1 mm (8.4 in)191866.5 mm (2.6 in)119
Longest dry spell (CDD)81 days193132 days119

Hottest day (TXx)

Hottest day (TXx) at Mayville by year The hottest day of the year at Mayville, 1893 to 2026. The record is 45.6 C (114.1 F) in 1936, marked on the chart; the median year is 36.1 C (97.0 F). 02040601900192019401960198020002020Record: 45.6 C (114.1 F) in 1936
The hottest day of the year at Mayville, 1893 to 2026. The record is 45.6 C (114.1 F) in 1936, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Mayville by year
YearHottest day (TXx)
189337.2 C (99.0 F)
189631.1 C (88.0 F)
189734.4 C (93.9 F)
189832.2 C (90.0 F)
189935.6 C (96.1 F)
190040.6 C (105.1 F)
190138.3 C (100.9 F)
190236.1 C (97.0 F)
190335.6 C (96.1 F)
190433.3 C (91.9 F)
190535.0 C (95.0 F)
190617.2 C (63.0 F)
190732.8 C (91.0 F)
190835.6 C (96.1 F)
190935.6 C (96.1 F)
191035.0 C (95.0 F)
191135.0 C (95.0 F)
191236.1 C (97.0 F)
191337.2 C (99.0 F)
191438.3 C (100.9 F)
191533.9 C (93.0 F)
191635.6 C (96.1 F)
191742.2 C (108.0 F)
191837.8 C (100.0 F)
191936.1 C (97.0 F)
192037.2 C (99.0 F)
192137.2 C (99.0 F)
192235.0 C (95.0 F)
192332.2 C (90.0 F)
192432.8 C (91.0 F)
192537.8 C (100.0 F)
192636.1 C (97.0 F)
192734.4 C (93.9 F)
192836.7 C (98.1 F)
192941.7 C (107.1 F)
193037.8 C (100.0 F)
193141.7 C (107.1 F)
193240.0 C (104.0 F)
193340.6 C (105.1 F)
193440.6 C (105.1 F)
193538.3 C (100.9 F)
193645.6 C (114.1 F)
193735.0 C (95.0 F)
193836.1 C (97.0 F)
193940.0 C (104.0 F)
194039.4 C (102.9 F)
194138.3 C (100.9 F)
194233.3 C (91.9 F)
194334.4 C (93.9 F)
194435.6 C (96.1 F)
194536.7 C (98.1 F)
194638.3 C (100.9 F)
194740.0 C (104.0 F)
194838.3 C (100.9 F)
194937.8 C (100.0 F)
195036.1 C (97.0 F)
195137.2 C (99.0 F)
195237.2 C (99.0 F)
195336.7 C (98.1 F)
195435.6 C (96.1 F)
195536.1 C (97.0 F)
195635.6 C (96.1 F)
195737.2 C (99.0 F)
195838.9 C (102.0 F)
195937.8 C (100.0 F)
196036.7 C (98.1 F)
196136.7 C (98.1 F)
196234.4 C (93.9 F)
196335.0 C (95.0 F)
196437.8 C (100.0 F)
196538.9 C (102.0 F)
196635.0 C (95.0 F)
196735.0 C (95.0 F)
196836.1 C (97.0 F)
196935.6 C (96.1 F)
197036.7 C (98.1 F)
197136.7 C (98.1 F)
197234.4 C (93.9 F)
197336.1 C (97.0 F)
197436.7 C (98.1 F)
197537.8 C (100.0 F)
197640.0 C (104.0 F)
197735.0 C (95.0 F)
197838.9 C (102.0 F)
197935.6 C (96.1 F)
198039.4 C (102.9 F)
198135.6 C (96.1 F)
198235.6 C (96.1 F)
198340.0 C (104.0 F)
198438.9 C (102.0 F)
198537.8 C (100.0 F)
198635.0 C (95.0 F)
198736.7 C (98.1 F)
19882.2 C (36.0 F)
200236.7 C (98.1 F)
200334.4 C (93.9 F)
200432.2 C (90.0 F)
200533.9 C (93.0 F)
200636.1 C (97.0 F)
200734.4 C (93.9 F)
200833.3 C (91.9 F)
200935.0 C (95.0 F)
201034.4 C (93.9 F)
201135.0 C (95.0 F)
201235.6 C (96.1 F)
201335.6 C (96.1 F)
201434.4 C (93.9 F)
201533.3 C (91.9 F)
201632.8 C (91.0 F)
201734.4 C (93.9 F)
201833.3 C (91.9 F)
201935.6 C (96.1 F)
202036.1 C (97.0 F)
202137.8 C (100.0 F)
202237.8 C (100.0 F)
202335.0 C (95.0 F)
202431.1 C (88.0 F)
202531.7 C (89.1 F)
202632.8 C (91.0 F)

Coldest night (TNn)

Coldest night (TNn) at Mayville by year The coldest night of the year at Mayville, 1893 to 2026. The record is -40.6 C (-41.1 F) in 1912, marked on the chart; the median year is -34.4 C (-29.9 F). -45-40-35-30-25-201900192019401960198020002020Record: -40.6 C (-41.1 F) in 1912
The coldest night of the year at Mayville, 1893 to 2026. The record is -40.6 C (-41.1 F) in 1912, marked on the chart; the median year is -34.4 C (-29.9 F).
Coldest night (TNn) at Mayville by year
YearColdest night (TNn)
1893-28.9 C (-20.0 F)
1896-31.1 C (-24.0 F)
1897-33.3 C (-27.9 F)
1898-28.9 C (-20.0 F)
1899-37.8 C (-36.0 F)
1900-32.8 C (-27.0 F)
1901-35.0 C (-31.0 F)
1902-34.4 C (-29.9 F)
1903-34.4 C (-29.9 F)
1904-38.3 C (-36.9 F)
1905-35.6 C (-32.1 F)
1906-34.4 C (-29.9 F)
1907-38.3 C (-36.9 F)
1908-36.7 C (-34.1 F)
1909-36.7 C (-34.1 F)
1910-31.7 C (-25.1 F)
1911-35.0 C (-31.0 F)
1912-40.6 C (-41.1 F)
1913-37.2 C (-35.0 F)
1914-39.4 C (-38.9 F)
1915-37.2 C (-35.0 F)
1916-39.4 C (-38.9 F)
1917-38.3 C (-36.9 F)
1918-37.2 C (-35.0 F)
1919-37.8 C (-36.0 F)
1920-35.6 C (-32.1 F)
1921-32.2 C (-26.0 F)
1922-37.2 C (-35.0 F)
1923-34.4 C (-29.9 F)
1924-34.4 C (-29.9 F)
1925-33.3 C (-27.9 F)
1926-32.2 C (-26.0 F)
1927-34.4 C (-29.9 F)
1928-31.1 C (-24.0 F)
1929-35.0 C (-31.0 F)
1930-36.1 C (-33.0 F)
1931-26.7 C (-16.1 F)
1932-32.2 C (-26.0 F)
1933-37.2 C (-35.0 F)
1934-33.9 C (-29.0 F)
1935-36.7 C (-34.1 F)
1936-40.0 C (-40.0 F)
1937-37.2 C (-35.0 F)
1938-32.2 C (-26.0 F)
1939-38.9 C (-38.0 F)
1940-30.6 C (-23.1 F)
1941-35.6 C (-32.1 F)
1942-33.3 C (-27.9 F)
1943-35.0 C (-31.0 F)
1944-31.7 C (-25.1 F)
1945-31.1 C (-24.0 F)
1946-33.9 C (-29.0 F)
1947-31.1 C (-24.0 F)
1948-38.3 C (-36.9 F)
1949-33.9 C (-29.0 F)
1950-36.7 C (-34.1 F)
1951-36.1 C (-33.0 F)
1952-33.3 C (-27.9 F)
1953-30.0 C (-22.0 F)
1954-36.7 C (-34.1 F)
1955-35.0 C (-31.0 F)
1956-35.6 C (-32.1 F)
1957-33.3 C (-27.9 F)
1958-31.7 C (-25.1 F)
1959-33.9 C (-29.0 F)
1960-32.8 C (-27.0 F)
1961-33.9 C (-29.0 F)
1962-35.6 C (-32.1 F)
1963-33.9 C (-29.0 F)
1964-34.4 C (-29.9 F)
1965-35.0 C (-31.0 F)
1966-37.2 C (-35.0 F)
1967-36.1 C (-33.0 F)
1968-36.7 C (-34.1 F)
1969-31.7 C (-25.1 F)
1970-34.4 C (-29.9 F)
1971-33.3 C (-27.9 F)
1972-36.7 C (-34.1 F)
1973-33.3 C (-27.9 F)
1974-32.2 C (-26.0 F)
1975-28.3 C (-18.9 F)
1976-31.7 C (-25.1 F)
1977-37.2 C (-35.0 F)
1978-37.8 C (-36.0 F)
1979-36.7 C (-34.1 F)
1980-33.3 C (-27.9 F)
1981-30.6 C (-23.1 F)
1982-36.1 C (-33.0 F)
1983-37.8 C (-36.0 F)
1984-36.1 C (-33.0 F)
1985-35.6 C (-32.1 F)
1986-34.4 C (-29.9 F)
1987-31.1 C (-24.0 F)
1988-32.8 C (-27.0 F)
2002-23.3 C (-9.9 F)
2003-30.0 C (-22.0 F)
2004-38.3 C (-36.9 F)
2005-37.2 C (-35.0 F)
2006-30.6 C (-23.1 F)
2007-30.0 C (-22.0 F)
2008-35.6 C (-32.1 F)
2009-36.7 C (-34.1 F)
2010-36.7 C (-34.1 F)
2011-34.4 C (-29.9 F)
2012-27.8 C (-18.0 F)
2013-30.6 C (-23.1 F)
2014-33.9 C (-29.0 F)
2015-32.8 C (-27.0 F)
2016-31.1 C (-24.0 F)
2017-33.9 C (-29.0 F)
2018-32.8 C (-27.0 F)
2019-37.2 C (-35.0 F)
2020-32.8 C (-27.0 F)
2021-33.3 C (-27.9 F)
2022-35.0 C (-31.0 F)
2023-32.8 C (-27.0 F)
2024-28.3 C (-18.9 F)
2025-32.8 C (-27.0 F)
2026-31.7 C (-25.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Mayville by year The wettest day of the year at Mayville, 1893 to 2026. The record is 159.0 mm (6.3 in) in 1987, marked on the chart; the median year is 45.0 mm (1.8 in). 0501001502001900192019401960198020002020Record: 159.0 mm (6.3 in) in 1987
The wettest day of the year at Mayville, 1893 to 2026. The record is 159.0 mm (6.3 in) in 1987, marked on the chart; the median year is 45.0 mm (1.8 in).
Wettest day (Rx1day) at Mayville by year
YearWettest day (Rx1day)
189322.1 mm (0.9 in)
189656.1 mm (2.2 in)
189782.0 mm (3.2 in)
189838.9 mm (1.5 in)
189933.0 mm (1.3 in)
1900104.1 mm (4.1 in)
190133.5 mm (1.3 in)
190235.8 mm (1.4 in)
190341.7 mm (1.6 in)
190436.3 mm (1.4 in)
190543.2 mm (1.7 in)
190615.2 mm (0.6 in)
190744.2 mm (1.7 in)
190835.1 mm (1.4 in)
190949.5 mm (1.9 in)
191021.6 mm (0.9 in)
191135.8 mm (1.4 in)
191249.0 mm (1.9 in)
191339.4 mm (1.6 in)
191450.0 mm (2.0 in)
191550.8 mm (2.0 in)
191641.7 mm (1.6 in)
191762.2 mm (2.4 in)
1918132.1 mm (5.2 in)
191952.6 mm (2.1 in)
192036.6 mm (1.4 in)
192136.6 mm (1.4 in)
192255.1 mm (2.2 in)
192320.3 mm (0.8 in)
192436.6 mm (1.4 in)
192553.6 mm (2.1 in)
192645.5 mm (1.8 in)
192740.6 mm (1.6 in)
192859.9 mm (2.4 in)
192925.4 mm (1.0 in)
193030.5 mm (1.2 in)
193139.1 mm (1.5 in)
193238.1 mm (1.5 in)
193331.8 mm (1.3 in)
193438.4 mm (1.5 in)
193576.2 mm (3.0 in)
193624.1 mm (0.9 in)
193766.0 mm (2.6 in)
193854.6 mm (2.1 in)
193943.2 mm (1.7 in)
194030.0 mm (1.2 in)
194147.0 mm (1.9 in)
194232.3 mm (1.3 in)
194343.2 mm (1.7 in)
194469.9 mm (2.8 in)
194532.5 mm (1.3 in)
194643.7 mm (1.7 in)
194739.9 mm (1.6 in)
194836.8 mm (1.4 in)
194950.3 mm (2.0 in)
195035.1 mm (1.4 in)
195140.1 mm (1.6 in)
195245.5 mm (1.8 in)
195356.4 mm (2.2 in)
195434.0 mm (1.3 in)
195526.4 mm (1.0 in)
195651.1 mm (2.0 in)
195765.3 mm (2.6 in)
195842.9 mm (1.7 in)
195946.5 mm (1.8 in)
196049.3 mm (1.9 in)
196139.9 mm (1.6 in)
1962125.2 mm (4.9 in)
196397.5 mm (3.8 in)
196452.3 mm (2.1 in)
196533.5 mm (1.3 in)
196641.9 mm (1.6 in)
196744.7 mm (1.8 in)
196866.5 mm (2.6 in)
196939.9 mm (1.6 in)
197047.2 mm (1.9 in)
197155.6 mm (2.2 in)
197247.5 mm (1.9 in)
197352.8 mm (2.1 in)
1974108.0 mm (4.3 in)
197515.7 mm (0.6 in)
197634.0 mm (1.3 in)
197752.6 mm (2.1 in)
197863.8 mm (2.5 in)
197940.9 mm (1.6 in)
198045.0 mm (1.8 in)
198136.3 mm (1.4 in)
198271.9 mm (2.8 in)
198343.4 mm (1.7 in)
198456.1 mm (2.2 in)
198599.8 mm (3.9 in)
198639.1 mm (1.5 in)
1987159.0 mm (6.3 in)
19889.9 mm (0.39 in)
2002108.0 mm (4.3 in)
200353.3 mm (2.1 in)
200444.2 mm (1.7 in)
200570.4 mm (2.8 in)
200636.3 mm (1.4 in)
200736.8 mm (1.4 in)
200858.4 mm (2.3 in)
200955.4 mm (2.2 in)
201061.0 mm (2.4 in)
201164.0 mm (2.5 in)
201245.0 mm (1.8 in)
201348.5 mm (1.9 in)
201473.7 mm (2.9 in)
201535.1 mm (1.4 in)
201650.8 mm (2.0 in)
201732.8 mm (1.3 in)
201863.2 mm (2.5 in)
201949.8 mm (2.0 in)
202033.5 mm (1.3 in)
202150.8 mm (2.0 in)
202259.7 mm (2.4 in)
202342.4 mm (1.7 in)
202446.7 mm (1.8 in)
202552.1 mm (2.1 in)
202655.4 mm (2.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Mayville by year The wettest five days of the year at Mayville, 1893 to 2026. The record is 212.1 mm (8.4 in) in 1918, marked on the chart; the median year is 66.5 mm (2.6 in). 01002003001900192019401960198020002020Record: 212.1 mm (8.4 in) in 1918
The wettest five days of the year at Mayville, 1893 to 2026. The record is 212.1 mm (8.4 in) in 1918, marked on the chart; the median year is 66.5 mm (2.6 in).
Wettest five days (Rx5day) at Mayville by year
YearWettest five days (Rx5day)
189357.9 mm (2.3 in)
1896109.6 mm (4.3 in)
189732.1 mm (1.3 in)
189847.9 mm (1.9 in)
189950.7 mm (2.0 in)
1900107.4 mm (4.2 in)
190162.5 mm (2.5 in)
190239.9 mm (1.6 in)
190359.2 mm (2.3 in)
190454.9 mm (2.2 in)
190546.4 mm (1.8 in)
190614.7 mm (0.6 in)
190762.2 mm (2.4 in)
190849.5 mm (1.9 in)
190991.4 mm (3.6 in)
191038.3 mm (1.5 in)
191149.1 mm (1.9 in)
191279.2 mm (3.1 in)
191348.3 mm (1.9 in)
191450.8 mm (2.0 in)
191581.3 mm (3.2 in)
191681.0 mm (3.2 in)
191778.2 mm (3.1 in)
1918212.1 mm (8.4 in)
191979.5 mm (3.1 in)
192069.4 mm (2.7 in)
192152.7 mm (2.1 in)
192270.9 mm (2.8 in)
192336.6 mm (1.4 in)
192457.2 mm (2.3 in)
192591.2 mm (3.6 in)
192698.6 mm (3.9 in)
192752.1 mm (2.1 in)
192861.7 mm (2.4 in)
192927.9 mm (1.1 in)
193064.8 mm (2.6 in)
193155.1 mm (2.2 in)
193243.4 mm (1.7 in)
193350.9 mm (2.0 in)
193476.1 mm (3.0 in)
193587.6 mm (3.4 in)
193627.2 mm (1.1 in)
193771.1 mm (2.8 in)
193855.6 mm (2.2 in)
193973.1 mm (2.9 in)
194055.3 mm (2.2 in)
194182.1 mm (3.2 in)
194255.4 mm (2.2 in)
194343.2 mm (1.7 in)
1944132.2 mm (5.2 in)
194539.7 mm (1.6 in)
194679.6 mm (3.1 in)
194741.9 mm (1.6 in)
194853.6 mm (2.1 in)
194987.2 mm (3.4 in)
195075.0 mm (3.0 in)
1951106.6 mm (4.2 in)
195263.1 mm (2.5 in)
195380.0 mm (3.1 in)
195465.3 mm (2.6 in)
195552.6 mm (2.1 in)
195657.2 mm (2.3 in)
1957134.9 mm (5.3 in)
1958122.6 mm (4.8 in)
195976.5 mm (3.0 in)
196067.6 mm (2.7 in)
196162.0 mm (2.4 in)
1962139.6 mm (5.5 in)
1963105.4 mm (4.1 in)
196492.3 mm (3.6 in)
196566.5 mm (2.6 in)
196656.2 mm (2.2 in)
196750.1 mm (2.0 in)
1968112.8 mm (4.4 in)
196967.6 mm (2.7 in)
197056.4 mm (2.2 in)
197189.6 mm (3.5 in)
197256.4 mm (2.2 in)
197387.9 mm (3.5 in)
1974113.6 mm (4.5 in)
197543.0 mm (1.7 in)
197652.3 mm (2.1 in)
197753.6 mm (2.1 in)
197878.1 mm (3.1 in)
197950.8 mm (2.0 in)
198067.1 mm (2.6 in)
198145.7 mm (1.8 in)
1982154.2 mm (6.1 in)
198388.1 mm (3.5 in)
198494.5 mm (3.7 in)
198599.8 mm (3.9 in)
198653.6 mm (2.1 in)
1987204.5 mm (8.1 in)
198811.2 mm (0.4 in)
2002186.7 mm (7.4 in)
200372.4 mm (2.9 in)
200452.2 mm (2.1 in)
200591.2 mm (3.6 in)
200643.9 mm (1.7 in)
200767.8 mm (2.7 in)
200859.9 mm (2.4 in)
200967.3 mm (2.6 in)
201092.5 mm (3.6 in)
201145.7 mm (1.8 in)
201230.3 mm (1.2 in)
2013120.2 mm (4.7 in)
201476.0 mm (3.0 in)
201553.9 mm (2.1 in)
201687.2 mm (3.4 in)
201763.3 mm (2.5 in)
201869.8 mm (2.7 in)
201981.0 mm (3.2 in)
202068.0 mm (2.7 in)
202185.9 mm (3.4 in)
202279.1 mm (3.1 in)
202362.5 mm (2.5 in)
202469.1 mm (2.7 in)
2025105.9 mm (4.2 in)
202662.5 mm (2.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Mayville by year The longest dry spell of the year at Mayville, 1893 to 2026. The record is 81 days in 1931, marked on the chart; the median year is 32 days. 0204060801001900192019401960198020002020Record: 81 days in 1931
The longest dry spell of the year at Mayville, 1893 to 2026. The record is 81 days in 1931, marked on the chart; the median year is 32 days.
Longest dry spell (CDD) at Mayville by year
YearLongest dry spell (CDD)
189320 days
189625 days
189740 days
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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

90 years with a frost

Across 90 years with a frost, the median last spring frost at Mayville falls on 15 May and the median first autumn frost on 23 September, which leaves a median of 133 days between them.

In 1978 to 2025 the median growing season was 137 days. That is 17 days more than in 1900 to 1947.

Fitted over all years, the growing season changes by +2.6 days per decade at this station.

Frost dates and growing season at Mayville
MeasureMedian, all yearsEarliest period (1900 to 1947)Recent period (1978 to 2025)Recent against earliestFitted trend
Last spring frost15 May21 May13 May8 days earlier-1.3 days per decade
First autumn frost23 September21 September29 September8 days later+1.3 days per decade
Growing days133 days120 days137 days17 days more+2.6 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

98 years, 1900 to 2025

A day with at least 45.4 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 139.6 mm (5.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Mayville: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years45.4 mm (1.8 in)
5 years61.9 mm (2.4 in)
10 years75.7 mm (3.0 in)
25 years97.1 mm (3.8 in)
50 years116.6 mm (4.6 in)
100 years139.6 mm (5.5 in)Longer than the 98 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, 98 years of values from 1900 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: 159.0 mm (6.3 in) in 1987; 132.1 mm (5.2 in) in 1918; 125.2 mm (4.9 in) in 1962.

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, Mayville had a mean temperature of 4.0 C (39.2 F) and 578.0 mm (22.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Wadena 3 S (United States, 207 km away), Minot Exp STN (United States, 304 km away) and Carrington (United States, 134 km away).

Climate twins of Mayville: 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
Wadena 3 SUnited States207 km (129 mi)4.2 C (39.5 F)669.3 mm (26.4 in)1.13
Minot Exp STNUnited States304 km (189 mi)4.2 C (39.6 F)458.7 mm (18.1 in)1.16
CarringtonUnited States134 km (83 mi)4.1 C (39.4 F)458.2 mm (18.0 in)1.19

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 Mayville standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Mayville 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 (2026-10-14).