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Fort Mackay Rs Weather Records (CA003062675)

Record envelope, standing records and threshold days for Fort Mackay Rs (CA003062675), Alberta, Canada, with 31 years of record.

Key Facts for Fort Mackay Rs

  • Fort Mackay Rs (CA003062675) is a weather station in Alberta, Canada at 57.18 latitude and -111.62 longitude, 235 m (771 ft) above sea level.
  • The station reports from 1964 to 1994, 31 years of record.
  • 1,458 records set at Fort Mackay Rs still stand.
  • Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

  • Location: Alberta, Canada, 57.18 latitude, -111.62 longitude.
  • Elevation: 235 m (771 ft).
  • Period of record: 1964 to 1994, 31 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Fort Mackay Rs, with 2026 drawn through them The band shows the record high and record low for each calendar day at Fort Mackay Rs. 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 Fort Mackay Rs. 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 Fort Mackay Rs, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan2.8 C (37.0 F)-52.8 C (-63.0 F)n/an/a
Feb11.7 C (53.1 F)-46.7 C (-52.1 F)n/an/a
Mar18.3 C (64.9 F)-36.7 C (-34.1 F)n/an/a
Apr31.0 C (87.8 F)-32.8 C (-27.0 F)n/an/a
May31.5 C (88.7 F)-11.1 C (12.0 F)n/an/a
Jun32.0 C (89.6 F)-3.0 C (26.6 F)n/an/a
Jul33.9 C (93.0 F)-1.0 C (30.2 F)n/an/a
Aug38.0 C (100.4 F)-4.0 C (24.8 F)n/an/a
Sep32.0 C (89.6 F)-9.0 C (15.8 F)n/an/a
Oct22.8 C (73.0 F)-18.3 C (-0.9 F)n/an/a
Nov11.0 C (51.8 F)-40.0 C (-40.0 F)n/an/a
Dec3.0 C (37.4 F)-43.9 C (-47.0 F)n/an/a

Which Years Hold Standing Records

1,458 standing records
Standing records at Fort Mackay Rs by the year they were set 1,458 records at Fort Mackay Rs still stand. 1966 holds the most, with 378. 01002003004001965: 391966: 3781967: 1391975: 2521976: 1131977: 1511978: 751979: 501980: 861981: 701983: 105196519671976197819801983
1,458 records at Fort Mackay Rs still stand. 1966 holds the most, with 378.
Standing records at Fort Mackay Rs by the year they were set
Year setStanding records
196539
1966378
1967139
1975252
1976113
1977151
197875
197950
198086
198170
1983105

Wettest Day of Each Month

Aug: 48.4 mm (1.9 in)
Record daily precipitation for each month at Fort Mackay Rs The wettest day on record for each calendar month at Fort Mackay Rs. The most was 48.4 mm (1.9 in) on 3 August 1980. 0204060 Jan: 10.2 mm (0.4 in), 3 January 1967 Jan Feb: 11.4 mm (0.4 in), 12 February 1967 Feb Mar: 10.2 mm (0.4 in), 25 March 1967 Mar Apr: 15.2 mm (0.6 in), 2 April 1966 Apr May: 35.6 mm (1.4 in), 21 May 1966 May Jun: 19.1 mm (0.8 in), 26 June 1965 Jun Jul: 40.4 mm (1.6 in), 13 July 1966 Jul Aug: 48.4 mm (1.9 in), 3 August 1980 Aug Sep: 30.0 mm (1.2 in), 8 September 1978 Sep Oct: 7.9 mm (0.31 in), 6 October 1975 Oct Nov: 13.2 mm (0.5 in), 4 November 1966 Nov Dec: 7.6 mm (0.30 in), 4 December 1966 Dec
The wettest day on record for each calendar month at Fort Mackay Rs. The most was 48.4 mm (1.9 in) on 3 August 1980.
Record daily precipitation for each month at Fort Mackay Rs
MonthRecord daily precipitation (mm)Date
Jan10.2 mm (0.4 in)3 January 1967
Feb11.4 mm (0.4 in)12 February 1967
Mar10.2 mm (0.4 in)25 March 1967
Apr15.2 mm (0.6 in)2 April 1966
May35.6 mm (1.4 in)21 May 1966
Jun19.1 mm (0.8 in)26 June 1965
Jul40.4 mm (1.6 in)13 July 1966
Aug48.4 mm (1.9 in)3 August 1980
Sep30.0 mm (1.2 in)8 September 1978
Oct7.9 mm (0.31 in)6 October 1975
Nov13.2 mm (0.5 in)4 November 1966
Dec7.6 mm (0.30 in)4 December 1966

Period of Record Coverage

1965 to 1983
Days with data per year at Fort Mackay Rs 11 years of record at Fort Mackay Rs, 1965 to 1983. 10 years have data for under 90 percent of days and are left out of rankings: 1965, 1967, 1975, 1976, 1977, 1978, 1979, 1980 and others. 1965: 77 of 365 days1966: 358 of 365 days1967: 158 of 365 days1975: 292 of 365 days1976: 92 of 366 days1977: 206 of 365 days1978: 152 of 365 days1979: 124 of 365 days1980: 159 of 366 days1981: 160 of 365 days1983: 185 of 365 days196519751980
11 years of record at Fort Mackay Rs, 1965 to 1983. 10 years have data for under 90 percent of days and are left out of rankings: 1965, 1967, 1975, 1976, 1977, 1978, 1979, 1980 and others.
Days with data per year at Fort Mackay Rs
YearDays with dataShare of yearComplete
19657721%No
196635898%Yes
196715843%No
197529280%No
19769225%No
197720656%No
197815242%No
197912434%No
198015943%No
198116044%No
198318551%No

Latest Records

0

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

Extremes by Year

1964 to 1983
Yearly extremes at Fort Mackay Rs: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.0 C (100.4 F)198132.0 C (89.6 F)11
Coldest night (TNn)-52.8 C (-63.0 F)1966-11.0 C (12.2 F)11
Wettest day (Rx1day)48.4 mm (1.9 in)198025.7 mm (1.0 in)12
Wettest five days (Rx5day)83.2 mm (3.3 in)197537.4 mm (1.5 in)12
Longest dry spell (CDD)28 days198022 days12

Hottest day (TXx)

Hottest day (TXx) at Fort Mackay Rs by year The hottest day of the year at Fort Mackay Rs, 1964 to 1983. The record is 38.0 C (100.4 F) in 1981, marked on the chart; the median year is 32.0 C (89.6 F). 253035401965197019751980Record: 38.0 C (100.4 F) in 1981
The hottest day of the year at Fort Mackay Rs, 1964 to 1983. The record is 38.0 C (100.4 F) in 1981, marked on the chart; the median year is 32.0 C (89.6 F).
Hottest day (TXx) at Fort Mackay Rs by year
YearHottest day (TXx)
1964n/a
196531.7 C (89.1 F)
196630.6 C (87.1 F)
196729.4 C (84.9 F)
197533.9 C (93.0 F)
197627.8 C (82.0 F)
197731.0 C (87.8 F)
197832.0 C (89.6 F)
197933.0 C (91.4 F)
198032.0 C (89.6 F)
198138.0 C (100.4 F)
198333.0 C (91.4 F)

Coldest night (TNn)

Coldest night (TNn) at Fort Mackay Rs by year The coldest night of the year at Fort Mackay Rs, 1964 to 1983. The record is -52.8 C (-63.0 F) in 1966, marked on the chart; the median year is -11.0 C (12.2 F). -60-40-2001965197019751980Record: -52.8 C (-63.0 F) in 1966
The coldest night of the year at Fort Mackay Rs, 1964 to 1983. The record is -52.8 C (-63.0 F) in 1966, marked on the chart; the median year is -11.0 C (12.2 F).
Coldest night (TNn) at Fort Mackay Rs by year
YearColdest night (TNn)
1964n/a
1965-3.3 C (26.1 F)
1966-52.8 C (-63.0 F)
1967-45.0 C (-49.0 F)
1975-44.4 C (-47.9 F)
1976-38.0 C (-36.4 F)
1977-32.0 C (-25.6 F)
1978-8.0 C (17.6 F)
1979-8.0 C (17.6 F)
1980-11.0 C (12.2 F)
1981-5.0 C (23.0 F)
1983-9.0 C (15.8 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Fort Mackay Rs by year The wettest day of the year at Fort Mackay Rs, 1964 to 1983. The record is 48.4 mm (1.9 in) in 1980, marked on the chart; the median year is 25.7 mm (1.0 in). 10203040501965197019751980Record: 48.4 mm (1.9 in) in 1980
The wettest day of the year at Fort Mackay Rs, 1964 to 1983. The record is 48.4 mm (1.9 in) in 1980, marked on the chart; the median year is 25.7 mm (1.0 in).
Wettest day (Rx1day) at Fort Mackay Rs by year
YearWettest day (Rx1day)
196421.1 mm (0.8 in)
196519.1 mm (0.8 in)
196640.4 mm (1.6 in)
196711.4 mm (0.4 in)
197538.4 mm (1.5 in)
197624.5 mm (1.0 in)
197722.8 mm (0.9 in)
197830.0 mm (1.2 in)
197926.8 mm (1.1 in)
198048.4 mm (1.9 in)
198117.6 mm (0.7 in)
198339.6 mm (1.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Fort Mackay Rs by year The wettest five days of the year at Fort Mackay Rs, 1964 to 1983. The record is 83.2 mm (3.3 in) in 1975, marked on the chart; the median year is 37.4 mm (1.5 in). 204060801001965197019751980Record: 83.2 mm (3.3 in) in 1975
The wettest five days of the year at Fort Mackay Rs, 1964 to 1983. The record is 83.2 mm (3.3 in) in 1975, marked on the chart; the median year is 37.4 mm (1.5 in).
Wettest five days (Rx5day) at Fort Mackay Rs by year
YearWettest five days (Rx5day)
196424.1 mm (0.9 in)
196531.3 mm (1.2 in)
196650.7 mm (2.0 in)
196723.9 mm (0.9 in)
197583.2 mm (3.3 in)
197625.1 mm (1.0 in)
197734.0 mm (1.3 in)
197843.8 mm (1.7 in)
197940.7 mm (1.6 in)
198071.0 mm (2.8 in)
198127.1 mm (1.1 in)
198372.3 mm (2.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Fort Mackay Rs by year The longest dry spell of the year at Fort Mackay Rs, 1964 to 1983. The record is 28 days in 1980, marked on the chart; the median year is 22 days. 510152025301965197019751980Record: 28 days in 1980
The longest dry spell of the year at Fort Mackay Rs, 1964 to 1983. The record is 28 days in 1980, marked on the chart; the median year is 22 days.
Longest dry spell (CDD) at Fort Mackay Rs by year
YearLongest dry spell (CDD)
196413 days
19658 days
196622 days
196726 days
197517 days
197624 days
197714 days
197821 days
197914 days
198028 days
198123 days
198328 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 Fort Mackay Rs standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Fort Mackay Rs 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 (2025-12-31).