Built 2026-10-15 (15 October 2026)

Deloraine Weather Records (CA005010760)

Record envelope, standing records and threshold days for Deloraine (CA005010760), Manitoba, Canada, with 98 years of record.

Key Facts for Deloraine

  • Deloraine (CA005010760) is a weather station in Manitoba, Canada at 49.18 latitude and -100.50 longitude, 501 m (1,644 ft) above sea level.
  • The station reports from 1897 to 1994, 98 years of record.
  • 1,464 records set at Deloraine still stand.
  • Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
  • Deloraine set a daily record low minimum temperature of -41.0 C (-41.8 F) on 24 December 1983.

About the Station

  • Location: Manitoba, Canada, 49.18 latitude, -100.50 longitude.
  • Elevation: 501 m (1,644 ft).
  • Period of record: 1897 to 1994, 98 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 Deloraine, with 2026 drawn through them The band shows the record high and record low for each calendar day at Deloraine. 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 Deloraine. 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 Deloraine, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan7.8 C (46.0 F)-43.3 C (-45.9 F)n/an/a
Feb13.9 C (57.0 F)-46.1 C (-51.0 F)n/an/a
Mar21.7 C (71.1 F)-39.4 C (-38.9 F)n/an/a
Apr35.0 C (95.0 F)-31.1 C (-24.0 F)n/an/a
May41.1 C (106.0 F)-10.0 C (14.0 F)n/an/a
Jun37.5 C (99.5 F)-3.3 C (26.1 F)n/an/a
Jul40.6 C (105.1 F)-1.1 C (30.0 F)n/an/a
Aug38.0 C (100.4 F)-3.0 C (26.6 F)n/an/a
Sep38.3 C (100.9 F)-7.8 C (18.0 F)n/an/a
Oct30.6 C (87.1 F)-16.7 C (1.9 F)n/an/a
Nov21.1 C (70.0 F)-33.3 C (-27.9 F)n/an/a
Dec16.1 C (61.0 F)-41.5 C (-42.7 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Deloraine by the year they were set 1,464 records at Deloraine still stand. 1983 holds the most, with 71. 0204060801925: 241926: 581934: 451935: 371936: 461937: 301938: 61940: 41953: 311954: 541955: 591956: 371957: 421958: 311959: 571960: 161961: 191962: 261963: 151964: 461965: 161966: 461967: 431968: 451969: 451970: 351971: 361972: 371973: 521974: 371975: 261976: 421977: 591978: 291979: 321980: 551981: 461982: 291983: 711925193619531957196119651969197319771981
1,464 records at Deloraine still stand. 1983 holds the most, with 71.
Standing records at Deloraine by the year they were set
Year setStanding records
192524
192658
193445
193537
193646
193730
19386
19404
195331
195454
195559
195637
195742
195831
195957
196016
196119
196226
196315
196446
196516
196646
196743
196845
196945
197035
197136
197237
197352
197437
197526
197642
197759
197829
197932
198055
198146
198229
198371

All-Time Record Progression

1 new records
When Deloraine set new all-time records 1 all-time records were set at Deloraine between 4 August 1983 and 4 August 1983. Each dot is a new record. Record high minimum temperature4 August 1983: Record high minimum temperature 25.0 C (77.0 F)
1 all-time records were set at Deloraine between 4 August 1983 and 4 August 1983. Each dot is a new record.
When Deloraine set new all-time records
DateKindDetail
1983-08-04Record high minimum temperatureRecord high minimum temperature 25.0 C (77.0 F)

Wettest Day of Each Month

Jun: 111.0 mm (4.4 in)
Record daily precipitation for each month at Deloraine The wettest day on record for each calendar month at Deloraine. The most was 111.0 mm (4.4 in) on 20 June 1926. 050100150 Jan: 30.5 mm (1.2 in), 21 January 1916 Jan Feb: 38.1 mm (1.5 in), 26 February 1969 Feb Mar: 25.4 mm (1.0 in), 27 March 1956 Mar Apr: 44.5 mm (1.8 in), 16 April 1913 Apr May: 46.0 mm (1.8 in), 20 May 1937 May Jun: 111.0 mm (4.4 in), 20 June 1926 Jun Jul: 65.3 mm (2.6 in), 31 July 1937 Jul Aug: 91.4 mm (3.6 in), 11 August 1957 Aug Sep: 44.7 mm (1.8 in), 18 September 1975 Sep Oct: 27.9 mm (1.1 in), 1 October 1971 Oct Nov: 30.5 mm (1.2 in), 7 November 1915 Nov Dec: 20.3 mm (0.8 in), 12 December 1915 Dec
The wettest day on record for each calendar month at Deloraine. The most was 111.0 mm (4.4 in) on 20 June 1926.
Record daily precipitation for each month at Deloraine
MonthRecord daily precipitation (mm)Date
Jan30.5 mm (1.2 in)21 January 1916
Feb38.1 mm (1.5 in)26 February 1969
Mar25.4 mm (1.0 in)27 March 1956
Apr44.5 mm (1.8 in)16 April 1913
May46.0 mm (1.8 in)20 May 1937
Jun111.0 mm (4.4 in)20 June 1926
Jul65.3 mm (2.6 in)31 July 1937
Aug91.4 mm (3.6 in)11 August 1957
Sep44.7 mm (1.8 in)18 September 1975
Oct27.9 mm (1.1 in)1 October 1971
Nov30.5 mm (1.2 in)7 November 1915
Dec20.3 mm (0.8 in)12 December 1915

Period of Record Coverage

1925 to 1983
Days with data per year at Deloraine 39 years of record at Deloraine, 1925 to 1983. 15 years have data for under 90 percent of days and are left out of rankings: 1925, 1926, 1934, 1935, 1936, 1937, 1938, 1940 and others. 1925: 121 of 365 days1926: 302 of 365 days1934: 226 of 365 days1935: 212 of 365 days1936: 151 of 366 days1937: 222 of 365 days1938: 44 of 365 days1940: 60 of 366 days1953: 184 of 365 days1954: 346 of 365 days1955: 339 of 365 days1956: 366 of 366 days1957: 353 of 365 days1958: 212 of 365 days1959: 365 of 365 days1960: 190 of 366 days1961: 231 of 365 days1962: 235 of 365 days1963: 94 of 365 days1964: 332 of 366 days1965: 184 of 365 days1966: 362 of 365 days1967: 364 of 365 days1968: 344 of 366 days1969: 336 of 365 days1970: 357 of 365 days1971: 345 of 365 days1972: 365 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 351 of 365 days1976: 359 of 366 days1977: 350 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 365 of 366 days1981: 361 of 365 days1982: 359 of 365 days1983: 357 of 365 days192519351940195519601965197019751980
39 years of record at Deloraine, 1925 to 1983. 15 years have data for under 90 percent of days and are left out of rankings: 1925, 1926, 1934, 1935, 1936, 1937, 1938, 1940 and others.
Days with data per year at Deloraine
YearDays with dataShare of yearComplete
192512133%No
192630283%No
193422662%No
193521258%No
193615141%No
193722261%No
19384412%No
19406016%No
195318450%No
195434695%Yes
195533993%Yes
1956366100%Yes
195735397%Yes
195821258%No
1959365100%Yes
196019052%No
196123163%No
196223564%No
19639426%No
196433291%Yes
196518450%No
196636299%Yes
1967364100%Yes
196834494%Yes
196933692%Yes
197035798%Yes
197134595%Yes
1972365100%Yes
1973365100%Yes
1974365100%Yes
197535196%Yes
197635998%Yes
197735096%Yes
1978365100%Yes
1979365100%Yes
1980365100%Yes
198136199%Yes
198235998%Yes
198335798%Yes

Latest Records

20
Latest records at Deloraine
DateStationRecordValueBeat old record byOld record stoodSignificance
24 December 1983Deloraine, CAdaily low min-41.0 C (-41.8 F)5.0 C (9.0 F)2 years11 of 100 (Routine)
23 December 1983Deloraine, CAmonthly low min-41.5 C (-42.7 F)0.4 C (0.7 F)48 years29 of 100 (Routine)
23 December 1983Deloraine, CAdaily low max-30.5 C (-22.9 F)10.5 C (18.9 F)14 years22 of 100 (Routine)
22 December 1983Deloraine, CAdaily low max-30.0 C (-22.0 F)6.7 C (12.1 F)48 years27 of 100 (Routine)
22 December 1983Deloraine, CAdaily low min-36.0 C (-32.8 F)2.7 C (4.9 F)48 years22 of 100 (Routine)
21 December 1983Deloraine, CAdaily low max-25.5 C (-13.9 F)3.3 C (5.9 F)48 years23 of 100 (Routine)
20 December 1983Deloraine, CAdaily low max-23.5 C (-10.3 F)2.9 C (5.2 F)22 years14 of 100 (Routine)
20 December 1983Deloraine, CAdaily low min-34.0 C (-29.2 F)1.2 C (2.2 F)12 years9 of 100 (Routine)
19 December 1983Deloraine, CAdaily low min-34.5 C (-30.1 F)0.1 C (0.2 F)28 years13 of 100 (Routine)
19 December 1983Deloraine, CAdaily low max-24.0 C (-11.2 F)0.1 C (0.2 F)12 years8 of 100 (Routine)
18 December 1983Deloraine, CAdaily low min-34.5 C (-30.1 F)1.7 C (3.1 F)28 years15 of 100 (Routine)
17 December 1983Deloraine, CAdaily low max-27.0 C (-16.6 F)5.3 C (9.5 F)18 years16 of 100 (Routine)
17 December 1983Deloraine, CAdaily low min-34.5 C (-30.1 F)1.7 C (3.1 F)26 years15 of 100 (Routine)
16 December 1983Deloraine, CAdaily low max-22.5 C (-8.5 F)0.8 C (1.4 F)18 years10 of 100 (Routine)
15 December 1983Deloraine, CAdaily low max-23.0 C (-9.4 F)1.0 C (1.8 F)4 years7 of 100 (Routine)
19 November 1983Deloraine, CAdaily high min0.5 C (32.9 F)1.6 C (2.9 F)8 years9 of 100 (Routine)
1 November 1983Deloraine, CAdaily high max18.5 C (65.3 F)1.3 C (2.3 F)17 years11 of 100 (Routine)
31 October 1983Deloraine, CAdaily high max20.0 C (68.0 F)1.1 C (2.0 F)16 years10 of 100 (Routine)
27 October 1983Deloraine, CAdaily high max21.5 C (70.7 F)2.1 C (3.8 F)8 years10 of 100 (Routine)
27 September 1983Deloraine, CAdaily high max27.0 C (80.6 F)4.2 C (7.6 F)9 years13 of 100 (Routine)

Climate Trend

16 complete years, 1956 to 1983
Annual mean temperature at Deloraine as warming stripes, 1956 to 1983 One stripe for each of 16 complete years at Deloraine, 1956 to 1983. Blue stripes are years cooler than the station's own mean of 2.7 C (36.9 F); red stripes are warmer. The coolest year was 1979, at 1.6 C (34.8 F), and the warmest was 1981, at 5.1 C (41.1 F). The strongest colour marks a difference of 2.4 C (4.3 F). 1956: 2.0 C, -0.7 C from the station mean1957: 3.0 C, +0.3 C from the station mean1959: 2.5 C, -0.2 C from the station mean1966: 1.8 C, -0.9 C from the station mean1967: 2.4 C, -0.3 C from the station mean1970: 1.9 C, -0.8 C from the station mean1972: 1.6 C, -1.1 C from the station mean1973: 3.9 C, +1.2 C from the station mean1974: 2.4 C, -0.3 C from the station mean1976: 3.4 C, +0.7 C from the station mean1978: 2.4 C, -0.4 C from the station mean1979: 1.6 C, -1.1 C from the station mean1980: 3.4 C, +0.7 C from the station mean1981: 5.1 C, +2.4 C from the station mean1982: 2.1 C, -0.7 C from the station mean1983: 3.9 C, +1.2 C from the station mean195619601965197019751980
One stripe for each of 16 complete years at Deloraine, 1956 to 1983. Blue stripes are years cooler than the station's own mean of 2.7 C (36.9 F); red stripes are warmer. The coolest year was 1979, at 1.6 C (34.8 F), and the warmest was 1981, at 5.1 C (41.1 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Deloraine as warming stripes, 1956 to 1983
YearAnnual mean temperatureDifference from the station mean
19562.0 C-0.74 C
19573.0 C+0.31 C
19592.5 C-0.23 C
19661.8 C-0.92 C
19672.4 C-0.32 C
19701.9 C-0.80 C
19721.6 C-1.07 C
19733.9 C+1.20 C
19742.4 C-0.29 C
19763.4 C+0.72 C
19782.4 C-0.35 C
19791.6 C-1.13 C
19803.4 C+0.73 C
19815.1 C+2.37 C
19822.1 C-0.65 C
19833.9 C+1.20 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

1897 to 1983
Yearly extremes at Deloraine: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)41.1 C (106.0 F)193435.0 C (95.0 F)39
Coldest night (TNn)-46.1 C (-51.0 F)1936-36.7 C (-34.1 F)39
Wettest day (Rx1day)111.0 mm (4.4 in)192630.5 mm (1.2 in)59
Wettest five days (Rx5day)169.2 mm (6.7 in)193541.2 mm (1.6 in)59
Longest dry spell (CDD)115 days190231 days59

Hottest day (TXx)

Hottest day (TXx) at Deloraine by year The hottest day of the year at Deloraine, 1897 to 1983. The record is 41.1 C (106.0 F) in 1934, marked on the chart; the median year is 35.0 C (95.0 F). 0102030405019001920194019601980Record: 41.1 C (106.0 F) in 1934
The hottest day of the year at Deloraine, 1897 to 1983. The record is 41.1 C (106.0 F) in 1934, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Deloraine by year
YearHottest day (TXx)
1897n/a
1898n/a
1899n/a
1900n/a
1901n/a
1902n/a
1903n/a
1904n/a
1905n/a
1908n/a
1909n/a
1910n/a
1911n/a
1912n/a
1913n/a
1915n/a
1916n/a
1917n/a
1918n/a
1919n/a
192535.0 C (95.0 F)
192638.3 C (100.9 F)
193441.1 C (106.0 F)
193533.3 C (91.9 F)
193622.8 C (73.0 F)
193737.2 C (99.0 F)
19383.3 C (37.9 F)
19404.4 C (39.9 F)
1951n/a
1952n/a
195334.4 C (93.9 F)
195433.3 C (91.9 F)
195534.4 C (93.9 F)
195634.4 C (93.9 F)
195735.0 C (95.0 F)
195827.2 C (81.0 F)
195936.1 C (97.0 F)
196032.8 C (91.0 F)
196132.8 C (91.0 F)
196232.2 C (90.0 F)
196321.7 C (71.1 F)
196433.3 C (91.9 F)
196535.0 C (95.0 F)
196633.3 C (91.9 F)
196735.6 C (96.1 F)
196834.4 C (93.9 F)
196935.6 C (96.1 F)
197035.0 C (95.0 F)
197137.2 C (99.0 F)
197235.0 C (95.0 F)
197335.0 C (95.0 F)
197433.9 C (93.0 F)
197536.1 C (97.0 F)
197637.8 C (100.0 F)
197733.3 C (91.9 F)
197838.3 C (100.9 F)
197937.5 C (99.5 F)
198037.0 C (98.6 F)
198137.0 C (98.6 F)
198234.0 C (93.2 F)
198338.0 C (100.4 F)

Coldest night (TNn)

Coldest night (TNn) at Deloraine by year The coldest night of the year at Deloraine, 1897 to 1983. The record is -46.1 C (-51.0 F) in 1936, marked on the chart; the median year is -36.7 C (-34.1 F). -50-45-40-35-30-2519001920194019601980Record: -46.1 C (-51.0 F) in 1936
The coldest night of the year at Deloraine, 1897 to 1983. The record is -46.1 C (-51.0 F) in 1936, marked on the chart; the median year is -36.7 C (-34.1 F).
Coldest night (TNn) at Deloraine by year
YearColdest night (TNn)
1897n/a
1898n/a
1899n/a
1900n/a
1901n/a
1902n/a
1903n/a
1904n/a
1905n/a
1908n/a
1909n/a
1910n/a
1911n/a
1912n/a
1913n/a
1915n/a
1916n/a
1917n/a
1918n/a
1919n/a
1925-27.8 C (-18.0 F)
1926-31.7 C (-25.1 F)
1934-41.1 C (-42.0 F)
1935-41.1 C (-42.0 F)
1936-46.1 C (-51.0 F)
1937-40.6 C (-41.1 F)
1938-40.6 C (-41.1 F)
1940-35.6 C (-32.1 F)
1951n/a
1952n/a
1953-31.1 C (-24.0 F)
1954-43.3 C (-45.9 F)
1955-37.8 C (-36.0 F)
1956-36.7 C (-34.1 F)
1957-33.3 C (-27.9 F)
1958-35.0 C (-31.0 F)
1959-35.0 C (-31.0 F)
1960-32.8 C (-27.0 F)
1961-36.1 C (-33.0 F)
1962-39.4 C (-38.9 F)
1963-31.7 C (-25.1 F)
1964-37.8 C (-36.0 F)
1965-27.8 C (-18.0 F)
1966-40.0 C (-40.0 F)
1967-38.3 C (-36.9 F)
1968-40.0 C (-40.0 F)
1969-36.1 C (-33.0 F)
1970-38.9 C (-38.0 F)
1971-37.8 C (-36.0 F)
1972-37.8 C (-36.0 F)
1973-36.1 C (-33.0 F)
1974-36.7 C (-34.1 F)
1975-32.2 C (-26.0 F)
1976-34.4 C (-29.9 F)
1977-36.1 C (-33.0 F)
1978-37.8 C (-36.0 F)
1979-37.2 C (-35.0 F)
1980-36.5 C (-33.7 F)
1981-34.5 C (-30.1 F)
1982-35.0 C (-31.0 F)
1983-41.5 C (-42.7 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Deloraine by year The wettest day of the year at Deloraine, 1897 to 1983. The record is 111.0 mm (4.4 in) in 1926, marked on the chart; the median year is 30.5 mm (1.2 in). 05010015019001920194019601980Record: 111.0 mm (4.4 in) in 1926
The wettest day of the year at Deloraine, 1897 to 1983. The record is 111.0 mm (4.4 in) in 1926, marked on the chart; the median year is 30.5 mm (1.2 in).
Wettest day (Rx1day) at Deloraine by year
YearWettest day (Rx1day)
189733.0 mm (1.3 in)
189815.2 mm (0.6 in)
18998.9 mm (0.35 in)
190015.2 mm (0.6 in)
190127.9 mm (1.1 in)
19027.6 mm (0.30 in)
190325.4 mm (1.0 in)
190412.7 mm (0.5 in)
190510.2 mm (0.4 in)
19085.1 mm (0.20 in)
190910.2 mm (0.4 in)
191012.7 mm (0.5 in)
19118.4 mm (0.33 in)
191238.1 mm (1.5 in)
191344.5 mm (1.8 in)
191530.5 mm (1.2 in)
191630.5 mm (1.2 in)
191715.2 mm (0.6 in)
191817.8 mm (0.7 in)
191925.4 mm (1.0 in)
192517.3 mm (0.7 in)
1926111.0 mm (4.4 in)
193427.2 mm (1.1 in)
193561.0 mm (2.4 in)
19368.9 mm (0.35 in)
193765.3 mm (2.6 in)
1938n/a
1940n/a
195117.8 mm (0.7 in)
195235.1 mm (1.4 in)
195322.1 mm (0.9 in)
195485.1 mm (3.4 in)
195535.6 mm (1.4 in)
195644.5 mm (1.8 in)
195791.4 mm (3.6 in)
195812.7 mm (0.5 in)
195925.4 mm (1.0 in)
196020.3 mm (0.8 in)
196116.0 mm (0.6 in)
196295.3 mm (3.8 in)
196310.9 mm (0.4 in)
19649.7 mm (0.38 in)
196541.9 mm (1.6 in)
196634.3 mm (1.4 in)
196727.9 mm (1.1 in)
196857.2 mm (2.3 in)
196938.1 mm (1.5 in)
197050.8 mm (2.0 in)
197137.1 mm (1.5 in)
197264.0 mm (2.5 in)
197353.3 mm (2.1 in)
197447.5 mm (1.9 in)
197544.7 mm (1.8 in)
197626.9 mm (1.1 in)
197730.5 mm (1.2 in)
197831.8 mm (1.3 in)
197928.2 mm (1.1 in)
198047.0 mm (1.9 in)
198134.0 mm (1.3 in)
198234.0 mm (1.3 in)
198332.0 mm (1.3 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Deloraine by year The wettest five days of the year at Deloraine, 1897 to 1983. The record is 169.2 mm (6.7 in) in 1935, marked on the chart; the median year is 41.2 mm (1.6 in). 05010015020019001920194019601980Record: 169.2 mm (6.7 in) in 1935
The wettest five days of the year at Deloraine, 1897 to 1983. The record is 169.2 mm (6.7 in) in 1935, marked on the chart; the median year is 41.2 mm (1.6 in).
Wettest five days (Rx5day) at Deloraine by year
YearWettest five days (Rx5day)
189761.4 mm (2.4 in)
189818.2 mm (0.7 in)
189917.8 mm (0.7 in)
190025.4 mm (1.0 in)
190127.9 mm (1.1 in)
190219.1 mm (0.8 in)
190331.2 mm (1.2 in)
190422.9 mm (0.9 in)
190511.2 mm (0.4 in)
19087.6 mm (0.30 in)
190915.3 mm (0.6 in)
191012.7 mm (0.5 in)
191120.4 mm (0.8 in)
191265.4 mm (2.6 in)
191357.2 mm (2.3 in)
191540.6 mm (1.6 in)
191655.9 mm (2.2 in)
191715.3 mm (0.6 in)
191830.9 mm (1.2 in)
191938.1 mm (1.5 in)
192534.0 mm (1.3 in)
1926145.6 mm (5.7 in)
193433.3 mm (1.3 in)
1935169.2 mm (6.7 in)
19365.1 mm (0.20 in)
193785.1 mm (3.4 in)
1938n/a
1940n/a
195117.8 mm (0.7 in)
195235.1 mm (1.4 in)
195345.5 mm (1.8 in)
1954139.5 mm (5.5 in)
195548.7 mm (1.9 in)
195664.7 mm (2.5 in)
1957121.8 mm (4.8 in)
195819.0 mm (0.7 in)
195952.5 mm (2.1 in)
196021.6 mm (0.9 in)
196127.9 mm (1.1 in)
1962134.2 mm (5.3 in)
196310.9 mm (0.4 in)
196428.3 mm (1.1 in)
196548.5 mm (1.9 in)
196658.1 mm (2.3 in)
196737.8 mm (1.5 in)
196882.6 mm (3.3 in)
196974.6 mm (2.9 in)
197050.8 mm (2.0 in)
197157.4 mm (2.3 in)
197277.2 mm (3.0 in)
197374.8 mm (2.9 in)
197470.9 mm (2.8 in)
197569.6 mm (2.7 in)
197646.7 mm (1.8 in)
197743.1 mm (1.7 in)
197839.9 mm (1.6 in)
197939.6 mm (1.6 in)
198071.6 mm (2.8 in)
198141.2 mm (1.6 in)
198261.4 mm (2.4 in)
198351.7 mm (2.0 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Deloraine by year The longest dry spell of the year at Deloraine, 1897 to 1983. The record is 115 days in 1902, marked on the chart; the median year is 31 days. 05010015019001920194019601980Record: 115 days in 1902
The longest dry spell of the year at Deloraine, 1897 to 1983. The record is 115 days in 1902, marked on the chart; the median year is 31 days.
Longest dry spell (CDD) at Deloraine by year
YearLongest dry spell (CDD)
189749 days
189835 days
189927 days
190063 days
190153 days
1902115 days
190331 days
190482 days
190553 days
190826 days
190944 days
191058 days
191133 days
191244 days
191342 days
191539 days
191643 days
191734 days
191822 days
191936 days
19257 days
192612 days
193430 days
19359 days
19365 days
193717 days
1938n/a
1940n/a
195121 days
195253 days
195322 days
195427 days
195532 days
195625 days
195720 days
195824 days
195932 days
196023 days
196134 days
196231 days
196320 days
196429 days
196534 days
196627 days
196729 days
196860 days
196939 days
197024 days
197143 days
197225 days
197334 days
197464 days
197526 days
197626 days
197731 days
197819 days
197918 days
198048 days
198149 days
198226 days
198322 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

35 years, 1900 to 1983

A day with at least 32.9 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 93.6 mm (3.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Deloraine: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years32.9 mm (1.3 in)
5 years50.0 mm (2.0 in)
10 years60.9 mm (2.4 in)
25 years74.4 mm (2.9 in)
50 years84.2 mm (3.3 in)Longer than the 35 years of record
100 years93.6 mm (3.7 in)Longer than the 35 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, 35 years of values from 1900 to 1983.

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: 91.4 mm (3.6 in) in 1957; 85.1 mm (3.4 in) in 1954; 64.0 mm (2.5 in) in 1972.

Download the Data

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