Built 2026-10-19 (19 October 2026)

Emo Weather Records (CA006022300)

Record envelope, standing records and threshold days for Emo (CA006022300), Ontario, Canada, with 47 years of record.

Key Facts for Emo

  • Emo (CA006022300) is a weather station in Ontario, Canada at 48.63 latitude and -93.80 longitude, 337 m (1,106 ft) above sea level.
  • The station reports from 1922 to 1968, 47 years of record.
  • 1,464 records set at Emo still stand.
  • Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
  • Emo tied a daily record low minimum temperature of 1.1 C (34.0 F) on 27 June 1968.

About the Station

  • Location: Ontario, Canada, 48.63 latitude, -93.80 longitude.
  • Elevation: 337 m (1,106 ft).
  • Period of record: 1922 to 1968, 47 years.
  • Eligible elements: tmax, tmin, prcp, snow.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Emo, with 2026 drawn through them The band shows the record high and record low for each calendar day at Emo. 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 Emo. 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 Emo, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan10.0 C (50.0 F)-47.8 C (-54.0 F)n/an/a
Feb13.9 C (57.0 F)-50.0 C (-58.0 F)n/an/a
Mar25.6 C (78.1 F)-44.4 C (-47.9 F)n/an/a
Apr32.8 C (91.0 F)-26.7 C (-16.1 F)n/an/a
May36.1 C (97.0 F)-15.0 C (5.0 F)n/an/a
Jun39.4 C (102.9 F)-5.0 C (23.0 F)n/an/a
Jul41.7 C (107.1 F)-4.4 C (24.1 F)n/an/a
Aug37.8 C (100.0 F)-3.9 C (25.0 F)n/an/a
Sep35.6 C (96.1 F)-10.6 C (12.9 F)n/an/a
Oct29.4 C (84.9 F)-23.3 C (-9.9 F)n/an/a
Nov20.0 C (68.0 F)-35.6 C (-32.1 F)n/an/a
Dec13.9 C (57.0 F)-47.2 C (-53.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Emo by the year they were set 1,464 records at Emo still stand. 1923 holds the most, with 60. 02040601922: 321923: 601924: 391925: 431926: 311927: 311928: 441929: 461930: 381931: 601932: 351933: 301934: 261935: 321936: 571937: 281938: 351939: 381940: 361941: 371942: 351943: 281944: 251945: 421946: 261947: 251948: 211949: 291950: 401951: 401952: 271953: 381954: 251955: 281956: 471957: 171958: 351959: 331960: 121961: 131962: 311963: 91964: 101966: 341967: 51968: 111922192719321937194219471952195719621968
1,464 records at Emo still stand. 1923 holds the most, with 60.
Standing records at Emo by the year they were set
Year setStanding records
192232
192360
192439
192543
192631
192731
192844
192946
193038
193160
193235
193330
193426
193532
193657
193728
193835
193938
194036
194137
194235
194328
194425
194542
194626
194725
194821
194929
195040
195140
195227
195338
195425
195528
195647
195717
195835
195933
196012
196113
196231
19639
196410
196634
19675
196811

Wettest Day of Each Month

Jun: 83.6 mm (3.3 in)
Record daily precipitation for each month at Emo The wettest day on record for each calendar month at Emo. The most was 83.6 mm (3.3 in) on 17 June 1931. 0255075100 Jan: 21.6 mm (0.9 in), 2 January 1941 Jan Feb: 30.5 mm (1.2 in), 6 February 1946 Feb Mar: 30.5 mm (1.2 in), 6 March 1924 Mar Apr: 34.0 mm (1.3 in), 24 April 1937 Apr May: 51.3 mm (2.0 in), 6 May 1938 May Jun: 83.6 mm (3.3 in), 17 June 1931 Jun Jul: 78.2 mm (3.1 in), 7 July 1959 Jul Aug: 58.4 mm (2.3 in), 30 August 1951 Aug Sep: 61.0 mm (2.4 in), 17 September 1955 Sep Oct: 40.4 mm (1.6 in), 5 October 1928 Oct Nov: 45.7 mm (1.8 in), 14 November 1937 Nov Dec: 35.6 mm (1.4 in), 23 December 1934 Dec
The wettest day on record for each calendar month at Emo. The most was 83.6 mm (3.3 in) on 17 June 1931.
Record daily precipitation for each month at Emo
MonthRecord daily precipitation (mm)Date
Jan21.6 mm (0.9 in)2 January 1941
Feb30.5 mm (1.2 in)6 February 1946
Mar30.5 mm (1.2 in)6 March 1924
Apr34.0 mm (1.3 in)24 April 1937
May51.3 mm (2.0 in)6 May 1938
Jun83.6 mm (3.3 in)17 June 1931
Jul78.2 mm (3.1 in)7 July 1959
Aug58.4 mm (2.3 in)30 August 1951
Sep61.0 mm (2.4 in)17 September 1955
Oct40.4 mm (1.6 in)5 October 1928
Nov45.7 mm (1.8 in)14 November 1937
Dec35.6 mm (1.4 in)23 December 1934

Period of Record Coverage

1922 to 1968
Days with data per year at Emo 46 years of record at Emo, 1922 to 1968. 17 years have data for under 90 percent of days and are left out of rankings: 1922, 1925, 1926, 1927, 1930, 1931, 1932, 1933 and others. 1922: 250 of 365 days1923: 362 of 365 days1924: 331 of 366 days1925: 300 of 365 days1926: 318 of 365 days1927: 321 of 365 days1928: 331 of 366 days1929: 349 of 365 days1930: 327 of 365 days1931: 315 of 365 days1932: 270 of 366 days1933: 284 of 365 days1934: 294 of 365 days1935: 277 of 365 days1936: 337 of 366 days1937: 333 of 365 days1938: 333 of 365 days1939: 358 of 365 days1940: 364 of 366 days1941: 363 of 365 days1942: 348 of 365 days1943: 354 of 365 days1944: 364 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 365 of 365 days1948: 364 of 366 days1949: 364 of 365 days1950: 364 of 365 days1951: 365 of 365 days1952: 355 of 366 days1953: 333 of 365 days1954: 326 of 365 days1955: 332 of 365 days1956: 362 of 366 days1957: 358 of 365 days1958: 337 of 365 days1959: 345 of 365 days1960: 366 of 366 days1961: 304 of 365 days1962: 364 of 365 days1963: 59 of 365 days1964: 148 of 366 days1966: 295 of 365 days1967: 109 of 365 days1968: 118 of 366 days1930194019501960
46 years of record at Emo, 1922 to 1968. 17 years have data for under 90 percent of days and are left out of rankings: 1922, 1925, 1926, 1927, 1930, 1931, 1932, 1933 and others.
Days with data per year at Emo
YearDays with dataShare of yearComplete
192225068%No
192336299%Yes
192433190%Yes
192530082%No
192631887%No
192732188%No
192833190%Yes
192934996%Yes
193032790%No
193131586%No
193227074%No
193328478%No
193429481%No
193527776%No
193633792%Yes
193733391%Yes
193833391%Yes
193935898%Yes
194036499%Yes
194136399%Yes
194234895%Yes
194335497%Yes
194436499%Yes
1945365100%Yes
1946365100%Yes
1947365100%Yes
194836499%Yes
1949364100%Yes
1950364100%Yes
1951365100%Yes
195235597%Yes
195333391%Yes
195432689%No
195533291%Yes
195636299%Yes
195735898%Yes
195833792%Yes
195934595%Yes
1960366100%Yes
196130483%No
1962364100%Yes
19635916%No
196414840%No
196629581%No
196710930%No
196811832%No

Latest Records

20
Latest records at Emo
DateStationRecordValueBeat old record byOld record stoodSignificance
27 June 1968Emo, CAdaily low min (Tie)1.1 C (34.0 F)tie43 years4 of 100 (Routine)
14 June 1968Emo, CAdaily low max13.9 C (57.0 F)2.2 C (4.0 F)41 years20 of 100 (Routine)
17 May 1968Emo, CAdaily low max5.6 C (42.1 F)1.6 C (2.9 F)18 years11 of 100 (Routine)
16 May 1968Emo, CAdaily low max5.6 C (42.1 F)1.1 C (2.0 F)38 years16 of 100 (Routine)
5 May 1968Emo, CAdaily low min-10.0 C (14.0 F)3.9 C (7.0 F)11 years13 of 100 (Routine)
24 April 1968Emo, CAdaily low max1.1 C (34.0 F)2.2 C (4.0 F)31 years16 of 100 (Routine)
11 April 1968Emo, CAdaily high max25.0 C (77.0 F)1.7 C (3.1 F)13 years9 of 100 (Routine)
7 April 1968Emo, CAdaily rain16.8 mm (0.7 in)9.7 mm (0.38 in)31 years20 of 100 (Routine)
7 April 1968Emo, CAdaily snowfall7.6 cm (3.0 in)0.5 cm (0.2 in)31 years14 of 100 (Routine)
18 March 1968Emo, CAdaily high max13.3 C (55.9 F)2.7 C (4.9 F)22 years13 of 100 (Routine)
8 March 1968Emo, CAdaily high max13.9 C (57.0 F)8.9 C (16.0 F)2 years16 of 100 (Routine)
7 March 1968Emo, CAdaily high max12.2 C (54.0 F)5.5 C (9.9 F)19 years16 of 100 (Routine)
6 March 1968Emo, CAdaily high max8.3 C (46.9 F)0.5 C (0.9 F)38 years15 of 100 (Routine)
4 March 1968Emo, CAdaily high max7.8 C (46.0 F)0.6 C (1.1 F)34 years14 of 100 (Routine)
20 December 1967Emo, CAdaily snowfall17.8 cm (7.0 in)15.3 cm (6.0 in)12 years45 of 100 (Notable)
20 December 1967Emo, CAdaily rain17.8 mm (0.7 in)15.3 mm (0.6 in)12 years20 of 100 (Routine)
11 December 1967Emo, CAdaily high min-4.4 C (24.1 F)1.2 C (2.2 F)36 years16 of 100 (Routine)
7 December 1967Emo, CAdaily high min-1.1 C (30.0 F)1.1 C (2.0 F)28 years13 of 100 (Routine)
4 December 1967Emo, CAdaily high max6.1 C (43.0 F)1.1 C (2.0 F)25 years12 of 100 (Routine)
23 October 1967Emo, CAdaily high max20.6 C (69.1 F)1.7 C (3.1 F)32 years15 of 100 (Routine)

Climate Trend

18 complete years, 1927 to 1962
Annual mean temperature at Emo as warming stripes, 1927 to 1962 One stripe for each of 18 complete years at Emo, 1927 to 1962. Blue stripes are years cooler than the station's own mean of 2.3 C (36.1 F); red stripes are warmer. The coolest year was 1950, at -0.4 C (31.3 F), and the warmest was 1931, at 5.5 C (41.8 F). The strongest colour marks a difference of 3.3 C (5.9 F). 1927: 1.4 C, -0.9 C from the station mean1928: 3.2 C, +1.0 C from the station mean1929: 1.1 C, -1.2 C from the station mean1930: 3.1 C, +0.8 C from the station mean1931: 5.5 C, +3.2 C from the station mean1939: 4.0 C, +1.7 C from the station mean1941: 3.9 C, +1.6 C from the station mean1944: 3.6 C, +1.3 C from the station mean1945: 1.8 C, -0.5 C from the station mean1946: 2.6 C, +0.4 C from the station mean1947: 1.9 C, -0.3 C from the station mean1948: 1.9 C, -0.3 C from the station mean1949: 2.0 C, -0.2 C from the station mean1950: -0.4 C, -2.7 C from the station mean1951: 0.7 C, -1.5 C from the station mean1956: 0.9 C, -1.4 C from the station mean1957: 1.4 C, -0.9 C from the station mean1962: 2.0 C, -0.3 C from the station mean19271930193519401945195019551960
One stripe for each of 18 complete years at Emo, 1927 to 1962. Blue stripes are years cooler than the station's own mean of 2.3 C (36.1 F); red stripes are warmer. The coolest year was 1950, at -0.4 C (31.3 F), and the warmest was 1931, at 5.5 C (41.8 F). The strongest colour marks a difference of 3.3 C (5.9 F).
Annual mean temperature at Emo as warming stripes, 1927 to 1962
YearAnnual mean temperatureDifference from the station mean
19271.4 C-0.85 C
19283.2 C+0.99 C
19291.1 C-1.17 C
19303.1 C+0.84 C
19315.5 C+3.21 C
19394.0 C+1.72 C
19413.9 C+1.63 C
19443.6 C+1.33 C
19451.8 C-0.46 C
19462.6 C+0.36 C
19471.9 C-0.31 C
19481.9 C-0.33 C
19492.0 C-0.21 C
1950-0.4 C-2.65 C
19510.7 C-1.51 C
19560.9 C-1.36 C
19571.4 C-0.88 C
19622.0 C-0.27 C

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

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1922 to 1968
Yearly extremes at Emo: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)41.7 C (107.1 F)193633.6 C (92.5 F)46
Coldest night (TNn)-50.0 C (-58.0 F)1933-41.7 C (-43.1 F)46
Wettest day (Rx1day)83.6 mm (3.3 in)193145.7 mm (1.8 in)45
Wettest five days (Rx5day)153.2 mm (6.0 in)193763.0 mm (2.5 in)45
Longest dry spell (CDD)49 days192823 days45

Hottest day (TXx)

Hottest day (TXx) at Emo by year The hottest day of the year at Emo, 1922 to 1968. The record is 41.7 C (107.1 F) in 1936, marked on the chart; the median year is 33.6 C (92.5 F). 010203040501930194019501960Record: 41.7 C (107.1 F) in 1936
The hottest day of the year at Emo, 1922 to 1968. The record is 41.7 C (107.1 F) in 1936, marked on the chart; the median year is 33.6 C (92.5 F).
Hottest day (TXx) at Emo by year
YearHottest day (TXx)
192237.8 C (100.0 F)
192333.3 C (91.9 F)
192432.8 C (91.0 F)
192532.8 C (91.0 F)
192634.4 C (93.9 F)
192732.2 C (90.0 F)
192836.1 C (97.0 F)
192936.7 C (98.1 F)
193033.9 C (93.0 F)
193139.4 C (102.9 F)
193232.8 C (91.0 F)
193336.7 C (98.1 F)
193433.9 C (93.0 F)
193533.3 C (91.9 F)
193641.7 C (107.1 F)
193736.1 C (97.0 F)
193835.6 C (96.1 F)
193934.4 C (93.9 F)
194037.2 C (99.0 F)
194136.7 C (98.1 F)
194232.2 C (90.0 F)
194333.9 C (93.0 F)
194432.2 C (90.0 F)
194534.4 C (93.9 F)
194633.3 C (91.9 F)
194733.9 C (93.0 F)
194833.3 C (91.9 F)
194935.0 C (95.0 F)
195032.2 C (90.0 F)
195133.3 C (91.9 F)
195232.8 C (91.0 F)
195333.3 C (91.9 F)
195431.7 C (89.1 F)
195534.4 C (93.9 F)
195636.1 C (97.0 F)
195732.8 C (91.0 F)
195831.7 C (89.1 F)
195933.9 C (93.0 F)
196032.2 C (90.0 F)
196134.4 C (93.9 F)
196230.6 C (87.1 F)
19636.7 C (44.1 F)
196432.2 C (90.0 F)
196635.0 C (95.0 F)
196730.0 C (86.0 F)
196826.7 C (80.1 F)

Coldest night (TNn)

Coldest night (TNn) at Emo by year The coldest night of the year at Emo, 1922 to 1968. The record is -50.0 C (-58.0 F) in 1933, marked on the chart; the median year is -41.7 C (-43.1 F). -50-40-30-20-101930194019501960Record: -50.0 C (-58.0 F) in 1933
The coldest night of the year at Emo, 1922 to 1968. The record is -50.0 C (-58.0 F) in 1933, marked on the chart; the median year is -41.7 C (-43.1 F).
Coldest night (TNn) at Emo by year
YearColdest night (TNn)
1922-40.6 C (-41.1 F)
1923-43.9 C (-47.0 F)
1924-43.3 C (-45.9 F)
1925-41.7 C (-43.1 F)
1926-38.9 C (-38.0 F)
1927-43.9 C (-47.0 F)
1928-38.9 C (-38.0 F)
1929-40.6 C (-41.1 F)
1930-45.0 C (-49.0 F)
1931-33.3 C (-27.9 F)
1932-41.1 C (-42.0 F)
1933-50.0 C (-58.0 F)
1934-43.3 C (-45.9 F)
1935-43.9 C (-47.0 F)
1936-46.1 C (-51.0 F)
1937-43.3 C (-45.9 F)
1938-40.6 C (-41.1 F)
1939-41.7 C (-43.1 F)
1940-38.9 C (-38.0 F)
1941-41.1 C (-42.0 F)
1942-39.4 C (-38.9 F)
1943-47.8 C (-54.0 F)
1944-40.0 C (-40.0 F)
1945-40.0 C (-40.0 F)
1946-43.3 C (-45.9 F)
1947-40.6 C (-41.1 F)
1948-43.9 C (-47.0 F)
1949-42.8 C (-45.0 F)
1950-46.7 C (-52.1 F)
1951-43.9 C (-47.0 F)
1952-36.7 C (-34.1 F)
1953-40.0 C (-40.0 F)
1954-43.9 C (-47.0 F)
1955-45.6 C (-50.1 F)
1956-37.2 C (-35.0 F)
1957-43.9 C (-47.0 F)
1958-37.2 C (-35.0 F)
1959-43.9 C (-47.0 F)
1960-36.7 C (-34.1 F)
1961-41.1 C (-42.0 F)
1962-44.4 C (-47.9 F)
1963-44.4 C (-47.9 F)
1964-30.6 C (-23.1 F)
1966-46.1 C (-51.0 F)
1967-37.8 C (-36.0 F)
1968-15.6 C (3.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Emo by year The wettest day of the year at Emo, 1922 to 1968. The record is 83.6 mm (3.3 in) in 1931, marked on the chart; the median year is 45.7 mm (1.8 in). 0204060801001930194019501960Record: 83.6 mm (3.3 in) in 1931
The wettest day of the year at Emo, 1922 to 1968. The record is 83.6 mm (3.3 in) in 1931, marked on the chart; the median year is 45.7 mm (1.8 in).
Wettest day (Rx1day) at Emo by year
YearWettest day (Rx1day)
192232.8 mm (1.3 in)
192329.2 mm (1.1 in)
192439.4 mm (1.6 in)
192553.3 mm (2.1 in)
192638.4 mm (1.5 in)
192732.3 mm (1.3 in)
192848.3 mm (1.9 in)
192927.2 mm (1.1 in)
193030.5 mm (1.2 in)
193183.6 mm (3.3 in)
193242.4 mm (1.7 in)
193341.7 mm (1.6 in)
193452.6 mm (2.1 in)
193546.0 mm (1.8 in)
193649.3 mm (1.9 in)
193774.7 mm (2.9 in)
193851.3 mm (2.0 in)
193941.4 mm (1.6 in)
194051.6 mm (2.0 in)
194153.6 mm (2.1 in)
194251.6 mm (2.0 in)
194350.3 mm (2.0 in)
194439.4 mm (1.6 in)
194525.4 mm (1.0 in)
194650.8 mm (2.0 in)
194750.8 mm (2.0 in)
194848.5 mm (1.9 in)
194938.1 mm (1.5 in)
195065.5 mm (2.6 in)
195158.4 mm (2.3 in)
195252.1 mm (2.1 in)
195342.7 mm (1.7 in)
195436.8 mm (1.4 in)
195561.0 mm (2.4 in)
195627.9 mm (1.1 in)
195744.5 mm (1.8 in)
195835.1 mm (1.4 in)
195978.2 mm (3.1 in)
196034.3 mm (1.4 in)
196145.7 mm (1.8 in)
196253.3 mm (2.1 in)
1963n/a
196429.5 mm (1.2 in)
196668.6 mm (2.7 in)
196718.5 mm (0.7 in)
196824.6 mm (1.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Emo by year The wettest five days of the year at Emo, 1922 to 1968. The record is 153.2 mm (6.0 in) in 1937, marked on the chart; the median year is 63.0 mm (2.5 in). 0501001502001930194019501960Record: 153.2 mm (6.0 in) in 1937
The wettest five days of the year at Emo, 1922 to 1968. The record is 153.2 mm (6.0 in) in 1937, marked on the chart; the median year is 63.0 mm (2.5 in).
Wettest five days (Rx5day) at Emo by year
YearWettest five days (Rx5day)
192245.6 mm (1.8 in)
192393.9 mm (3.7 in)
192449.0 mm (1.9 in)
192563.0 mm (2.5 in)
192661.2 mm (2.4 in)
192763.9 mm (2.5 in)
192853.4 mm (2.1 in)
192932.6 mm (1.3 in)
193054.2 mm (2.1 in)
193183.6 mm (3.3 in)
193262.7 mm (2.5 in)
193348.6 mm (1.9 in)
193461.4 mm (2.4 in)
193553.0 mm (2.1 in)
193662.9 mm (2.5 in)
1937153.2 mm (6.0 in)
1938119.9 mm (4.7 in)
193966.8 mm (2.6 in)
194067.0 mm (2.6 in)
194176.4 mm (3.0 in)
1942105.4 mm (4.1 in)
194366.1 mm (2.6 in)
194460.7 mm (2.4 in)
194551.0 mm (2.0 in)
194670.9 mm (2.8 in)
194763.0 mm (2.5 in)
194884.4 mm (3.3 in)
194972.2 mm (2.8 in)
195089.7 mm (3.5 in)
195170.4 mm (2.8 in)
195272.4 mm (2.9 in)
195346.7 mm (1.8 in)
195446.2 mm (1.8 in)
195596.5 mm (3.8 in)
195642.2 mm (1.7 in)
195751.3 mm (2.0 in)
195861.7 mm (2.4 in)
195992.5 mm (3.6 in)
196068.8 mm (2.7 in)
196162.3 mm (2.5 in)
196295.0 mm (3.7 in)
1963n/a
196464.6 mm (2.5 in)
196683.6 mm (3.3 in)
196728.9 mm (1.1 in)
196835.3 mm (1.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Emo by year The longest dry spell of the year at Emo, 1922 to 1968. The record is 49 days in 1928, marked on the chart; the median year is 23 days. 10203040501930194019501960Record: 49 days in 1928
The longest dry spell of the year at Emo, 1922 to 1968. The record is 49 days in 1928, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Emo by year
YearLongest dry spell (CDD)
192218 days
192348 days
192427 days
192522 days
192619 days
192723 days
192849 days
192924 days
193029 days
193126 days
193224 days
193317 days
193429 days
193519 days
193626 days
193724 days
193823 days
193925 days
194023 days
194119 days
194222 days
194318 days
194426 days
194524 days
194616 days
194721 days
194826 days
194920 days
195013 days
195117 days
195228 days
195325 days
195420 days
195511 days
195623 days
195719 days
195824 days
195920 days
196035 days
196123 days
196213 days
1963n/a
196414 days
196620 days
196717 days
196813 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.

Rainfall Return Levels

36 years, 1923 to 1960

A day with at least 45.9 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 85.1 mm (3.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Emo: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years45.9 mm (1.8 in)
5 years58.2 mm (2.3 in)
10 years65.6 mm (2.6 in)
25 years74.0 mm (2.9 in)
50 years79.8 mm (3.1 in)Longer than the 36 years of record
100 years85.1 mm (3.4 in)Longer than the 36 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, 36 years of values from 1923 to 1960.

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: 83.6 mm (3.3 in) in 1931; 78.2 mm (3.1 in) in 1959; 74.7 mm (2.9 in) in 1937.

Download the Data

  • Data for Emo standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Emo 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-17).