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Built 2026-10-19 (19 October 2026)

Dunchurch Weather Records (CA006112133)

Record envelope, standing records and threshold days for Dunchurch (CA006112133), Ontario, Canada, with 42 years of record.

Key Facts for Dunchurch

  • Dunchurch (CA006112133) is a weather station in Ontario, Canada at 45.62 latitude and -79.88 longitude, 268 m (879 ft) above sea level.
  • The station reports from 1973 to 2014, 42 years of record.
  • 1,464 records set at Dunchurch still stand.
  • Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

  • Location: Ontario, Canada, 45.62 latitude, -79.88 longitude.
  • Elevation: 268 m (879 ft).
  • Period of record: 1973 to 2014, 42 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Dunchurch, with 2026 drawn through them The band shows the record high and record low for each calendar day at Dunchurch. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -60-40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Dunchurch. 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 Dunchurch, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan8.3 C (46.9 F)-42.0 C (-43.6 F)n/an/a
Feb9.5 C (49.1 F)-41.0 C (-41.8 F)n/an/a
Mar20.0 C (68.0 F)-36.0 C (-32.8 F)n/an/a
Apr27.2 C (81.0 F)-17.5 C (0.5 F)n/an/a
May31.7 C (89.1 F)-6.7 C (19.9 F)n/an/a
Jun31.1 C (88.0 F)-2.2 C (28.0 F)n/an/a
Jul34.4 C (93.9 F)1.5 C (34.7 F)n/an/a
Aug32.8 C (91.0 F)-1.0 C (30.2 F)n/an/a
Sep29.4 C (84.9 F)-5.6 C (21.9 F)n/an/a
Oct26.5 C (79.7 F)-11.1 C (12.0 F)n/an/a
Nov19.5 C (67.1 F)-25.6 C (-14.1 F)n/an/a
Dec16.0 C (60.8 F)-41.5 C (-42.7 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Dunchurch by the year they were set 1,464 records at Dunchurch still stand. 1979 holds the most, with 167. 0501001502001973: 471974: 1281975: 1591976: 1531977: 1321978: 1171979: 1671980: 1341981: 1321982: 1321983: 163197319751977197919811983
1,464 records at Dunchurch still stand. 1979 holds the most, with 167.
Standing records at Dunchurch by the year they were set
Year setStanding records
197347
1974128
1975159
1976153
1977132
1978117
1979167
1980134
1981132
1982132
1983163

Wettest Day of Each Month

Jul: 73.8 mm (2.9 in)
Record daily precipitation for each month at Dunchurch The wettest day on record for each calendar month at Dunchurch. The most was 73.8 mm (2.9 in) on 25 July 1979. 020406080 Jan: 42.7 mm (1.7 in), 25 January 1975 Jan Feb: 31.5 mm (1.2 in), 24 February 1975 Feb Mar: 41.7 mm (1.6 in), 4 March 1976 Mar Apr: 39.4 mm (1.6 in), 8 April 1981 Apr May: 50.8 mm (2.0 in), 30 May 1980 May Jun: 60.0 mm (2.4 in), 19 June 1980 Jun Jul: 73.8 mm (2.9 in), 25 July 1979 Jul Aug: 66.0 mm (2.6 in), 21 August 1977 Aug Sep: 58.7 mm (2.3 in), 11 September 1975 Sep Oct: 38.1 mm (1.5 in), 6 October 1976 Oct Nov: 40.1 mm (1.6 in), 10 November 1975 Nov Dec: 32.2 mm (1.3 in), 22 December 1983 Dec
The wettest day on record for each calendar month at Dunchurch. The most was 73.8 mm (2.9 in) on 25 July 1979.
Record daily precipitation for each month at Dunchurch
MonthRecord daily precipitation (mm)Date
Jan42.7 mm (1.7 in)25 January 1975
Feb31.5 mm (1.2 in)24 February 1975
Mar41.7 mm (1.6 in)4 March 1976
Apr39.4 mm (1.6 in)8 April 1981
May50.8 mm (2.0 in)30 May 1980
Jun60.0 mm (2.4 in)19 June 1980
Jul73.8 mm (2.9 in)25 July 1979
Aug66.0 mm (2.6 in)21 August 1977
Sep58.7 mm (2.3 in)11 September 1975
Oct38.1 mm (1.5 in)6 October 1976
Nov40.1 mm (1.6 in)10 November 1975
Dec32.2 mm (1.3 in)22 December 1983

Period of Record Coverage

1973 to 1983
Days with data per year at Dunchurch 11 years of record at Dunchurch, 1973 to 1983. 1 years have data for under 90 percent of days and are left out of rankings: 1973. 1973: 111 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 365 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 364 of 365 days19751980
11 years of record at Dunchurch, 1973 to 1983. 1 years have data for under 90 percent of days and are left out of rankings: 1973.
Days with data per year at Dunchurch
YearDays with dataShare of yearComplete
197311130%No
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980365100%Yes
1981365100%Yes
1982365100%Yes
1983364100%Yes

Latest Records

0

No records were set at this station in the latest data.

Climate Trend

10 complete years, 1974 to 1983
Annual mean temperature at Dunchurch as warming stripes, 1974 to 1983 One stripe for each of 10 complete years at Dunchurch, 1974 to 1983. Blue stripes are years cooler than the station's own mean of 4.1 C (39.4 F); red stripes are warmer. The coolest year was 1978, at 3.3 C (38.0 F), and the warmest was 1983, at 4.8 C (40.7 F). The strongest colour marks a difference of 0.9 C (1.6 F). 1974: 3.9 C, -0.2 C from the station mean1975: 4.7 C, +0.6 C from the station mean1976: 3.5 C, -0.7 C from the station mean1977: 4.5 C, +0.4 C from the station mean1978: 3.3 C, -0.8 C from the station mean1979: 4.3 C, +0.2 C from the station mean1980: 3.4 C, -0.7 C from the station mean1981: 4.5 C, +0.4 C from the station mean1982: 4.3 C, +0.1 C from the station mean1983: 4.8 C, +0.7 C from the station mean19741976197819801982
One stripe for each of 10 complete years at Dunchurch, 1974 to 1983. Blue stripes are years cooler than the station's own mean of 4.1 C (39.4 F); red stripes are warmer. The coolest year was 1978, at 3.3 C (38.0 F), and the warmest was 1983, at 4.8 C (40.7 F). The strongest colour marks a difference of 0.9 C (1.6 F).
Annual mean temperature at Dunchurch as warming stripes, 1974 to 1983
YearAnnual mean temperatureDifference from the station mean
19743.9 C-0.18 C
19754.7 C+0.59 C
19763.5 C-0.66 C
19774.5 C+0.37 C
19783.3 C-0.81 C
19794.3 C+0.18 C
19803.4 C-0.72 C
19814.5 C+0.40 C
19824.3 C+0.14 C
19834.8 C+0.69 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

1973 to 1983
Yearly extremes at Dunchurch: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)34.4 C (93.9 F)197531.5 C (88.7 F)11
Coldest night (TNn)-42.0 C (-43.6 F)1982-40.0 C (-40.0 F)11
Wettest day (Rx1day)73.8 mm (2.9 in)197947.2 mm (1.9 in)11
Wettest five days (Rx5day)100.8 mm (4.0 in)197981.0 mm (3.2 in)11
Longest dry spell (CDD)17 days197513 days11

Hottest day (TXx)

Hottest day (TXx) at Dunchurch by year The hottest day of the year at Dunchurch, 1973 to 1983. The record is 34.4 C (93.9 F) in 1975, marked on the chart; the median year is 31.5 C (88.7 F). 2025303519751980Record: 34.4 C (93.9 F) in 1975
The hottest day of the year at Dunchurch, 1973 to 1983. The record is 34.4 C (93.9 F) in 1975, marked on the chart; the median year is 31.5 C (88.7 F).
Hottest day (TXx) at Dunchurch by year
YearHottest day (TXx)
197323.9 C (75.0 F)
197431.7 C (89.1 F)
197534.4 C (93.9 F)
197630.6 C (87.1 F)
197732.2 C (90.0 F)
197831.5 C (88.7 F)
197931.5 C (88.7 F)
198030.5 C (86.9 F)
198131.0 C (87.8 F)
198230.5 C (86.9 F)
198332.0 C (89.6 F)

Coldest night (TNn)

Coldest night (TNn) at Dunchurch by year The coldest night of the year at Dunchurch, 1973 to 1983. The record is -42.0 C (-43.6 F) in 1982, marked on the chart; the median year is -40.0 C (-40.0 F). -42.5-40-37.5-35-32.5-3019751980Record: -42.0 C (-43.6 F) in 1982
The coldest night of the year at Dunchurch, 1973 to 1983. The record is -42.0 C (-43.6 F) in 1982, marked on the chart; the median year is -40.0 C (-40.0 F).
Coldest night (TNn) at Dunchurch by year
YearColdest night (TNn)
1973-32.2 C (-26.0 F)
1974-32.8 C (-27.0 F)
1975-38.3 C (-36.9 F)
1976-40.0 C (-40.0 F)
1977-40.0 C (-40.0 F)
1978-36.7 C (-34.1 F)
1979-41.0 C (-41.8 F)
1980-41.5 C (-42.7 F)
1981-41.0 C (-41.8 F)
1982-42.0 C (-43.6 F)
1983-37.5 C (-35.5 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Dunchurch by year The wettest day of the year at Dunchurch, 1973 to 1983. The record is 73.8 mm (2.9 in) in 1979, marked on the chart; the median year is 47.2 mm (1.9 in). 2040608019751980Record: 73.8 mm (2.9 in) in 1979
The wettest day of the year at Dunchurch, 1973 to 1983. The record is 73.8 mm (2.9 in) in 1979, marked on the chart; the median year is 47.2 mm (1.9 in).
Wettest day (Rx1day) at Dunchurch by year
YearWettest day (Rx1day)
197332.5 mm (1.3 in)
197437.6 mm (1.5 in)
197558.7 mm (2.3 in)
197649.0 mm (1.9 in)
197766.0 mm (2.6 in)
197834.2 mm (1.3 in)
197973.8 mm (2.9 in)
198060.0 mm (2.4 in)
198147.2 mm (1.9 in)
198234.8 mm (1.4 in)
198345.4 mm (1.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Dunchurch by year The wettest five days of the year at Dunchurch, 1973 to 1983. The record is 100.8 mm (4.0 in) in 1979, marked on the chart; the median year is 81.0 mm (3.2 in). 40608010012019751980Record: 100.8 mm (4.0 in) in 1979
The wettest five days of the year at Dunchurch, 1973 to 1983. The record is 100.8 mm (4.0 in) in 1979, marked on the chart; the median year is 81.0 mm (3.2 in).
Wettest five days (Rx5day) at Dunchurch by year
YearWettest five days (Rx5day)
197343.2 mm (1.7 in)
197481.0 mm (3.2 in)
197588.9 mm (3.5 in)
197692.7 mm (3.6 in)
197791.9 mm (3.6 in)
197852.6 mm (2.1 in)
1979100.8 mm (4.0 in)
198080.0 mm (3.1 in)
198178.8 mm (3.1 in)
198264.6 mm (2.5 in)
198382.8 mm (3.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Dunchurch by year The longest dry spell of the year at Dunchurch, 1973 to 1983. The record is 17 days in 1975, marked on the chart; the median year is 13 days. 7.51012.51517.519751980Record: 17 days in 1975
The longest dry spell of the year at Dunchurch, 1973 to 1983. The record is 17 days in 1975, marked on the chart; the median year is 13 days.
Longest dry spell (CDD) at Dunchurch by year
YearLongest dry spell (CDD)
19738 days
197412 days
197517 days
197612 days
197713 days
197815 days
197910 days
198010 days
198116 days
198214 days
198313 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.

Download the Data

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