Mackar Inlet Weather Records (CA002402686)

Record envelope, standing records and threshold days for Mackar Inlet (CA002402686), Nunavut, Canada, with 36 years of record.

Key Facts for Mackar Inlet

Mackar Inlet (CA002402686) is a weather station in Nunavut, Canada at 68.30 latitude and -85.67 longitude, 395 m (1,296 ft) above sea level.
The station reports from 1957 to 1992, 36 years of record.
1,464 records set at Mackar Inlet still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Nunavut, Canada, 68.30 latitude, -85.67 longitude.
Elevation: 395 m (1,296 ft).
Period of record: 1957 to 1992, 36 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Mackar Inlet. 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 Mackar Inlet, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	-2.8 C (27.0 F)	-50.0 C (-58.0 F)	n/a	n/a
Feb	-5.6 C (21.9 F)	-49.5 C (-57.1 F)	n/a	n/a
Mar	-4.5 C (23.9 F)	-46.7 C (-52.1 F)	n/a	n/a
Apr	4.4 C (39.9 F)	-39.4 C (-38.9 F)	n/a	n/a
May	6.1 C (43.0 F)	-27.8 C (-18.0 F)	n/a	n/a
Jun	18.3 C (64.9 F)	-16.1 C (3.0 F)	n/a	n/a
Jul	21.1 C (70.0 F)	-5.1 C (22.8 F)	n/a	n/a
Aug	21.7 C (71.1 F)	-7.8 C (18.0 F)	n/a	n/a
Sep	12.8 C (55.0 F)	-17.2 C (1.0 F)	n/a	n/a
Oct	3.3 C (37.9 F)	-34.0 C (-29.2 F)	n/a	n/a
Nov	3.3 C (37.9 F)	-42.2 C (-44.0 F)	n/a	n/a
Dec	1.1 C (34.0 F)	-45.0 C (-49.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Mackar Inlet still stand. 1972 holds the most, with 103.

Standing records at Mackar Inlet by the year they were set
Year set	Standing records
1957	22
1958	62
1959	35
1960	51
1961	66
1962	37
1963	76
1964	65
1965	60
1966	71
1967	47
1968	43
1969	52
1970	60
1971	40
1972	103
1973	46
1974	40
1975	72
1976	38
1977	61
1978	41
1979	88
1980	56
1981	61
1982	25
1983	46

Wettest Day of Each Month

Jul: 42.2 mm (1.7 in)

The wettest day on record for each calendar month at Mackar Inlet. The most was 42.2 mm (1.7 in) on 21 July 1966.

Record daily precipitation for each month at Mackar Inlet
Month	Record daily precipitation (mm)	Date
Jan	7.0 mm (0.28 in)	22 January 1981
Feb	12.7 mm (0.5 in)	8 February 1958
Mar	9.5 mm (0.37 in)	21 March 1977
Apr	7.9 mm (0.31 in)	16 April 1970
May	17.8 mm (0.7 in)	11 May 1971
Jun	21.7 mm (0.9 in)	28 June 1981
Jul	42.2 mm (1.7 in)	21 July 1966
Aug	23.4 mm (0.9 in)	28 August 1972
Sep	18.8 mm (0.7 in)	7 September 1975
Oct	25.7 mm (1.0 in)	3 October 1970
Nov	16.0 mm (0.6 in)	14 November 1978
Dec	5.1 mm (0.20 in)	3 December 1969

Period of Record Coverage

1957 to 1983

27 years of record at Mackar Inlet, 1957 to 1983. 3 years have data for under 90 percent of days and are left out of rankings: 1957, 1958, 1983.

Days with data per year at Mackar Inlet
Year	Days with data	Share of year	Complete
1957	42	12%	No
1958	308	84%	No
1959	340	93%	Yes
1960	358	98%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	364	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	335	92%	Yes
1983	315	86%	No

Latest Records

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

Climate Trend

22 complete years, 1960 to 1981

One stripe for each of 22 complete years at Mackar Inlet, 1960 to 1981. Blue stripes are years cooler than the station's own mean of -14.8 C (5.4 F); red stripes are warmer. The coolest year was 1972, at -18.4 C (-1.2 F), and the warmest was 1977, at -12.6 C (9.3 F). The strongest colour marks a difference of 3.7 C (6.7 F).

Annual mean temperature at Mackar Inlet as warming stripes, 1960 to 1981
Year	Annual mean temperature	Difference from the station mean
1960	-13.3 C	+1.49 C
1961	-15.6 C	-0.85 C
1962	-14.5 C	+0.22 C
1963	-14.8 C	+0.01 C
1964	-15.8 C	-1.07 C
1965	-14.4 C	+0.40 C
1966	-14.2 C	+0.55 C
1967	-16.0 C	-1.27 C
1968	-14.6 C	+0.14 C
1969	-13.2 C	+1.52 C
1970	-15.1 C	-0.36 C
1971	-14.2 C	+0.57 C
1972	-18.4 C	-3.67 C
1973	-14.3 C	+0.48 C
1974	-15.3 C	-0.58 C
1975	-14.3 C	+0.43 C
1976	-16.1 C	-1.31 C
1977	-12.6 C	+2.17 C
1978	-16.2 C	-1.47 C
1979	-15.4 C	-0.62 C
1980	-13.7 C	+1.11 C
1981	-12.6 C	+2.13 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

1957 to 1983

Yearly extremes at Mackar Inlet: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	21.7 C (71.1 F)	1966	17.8 C (64.0 F)	27
Coldest night (TNn)	-50.0 C (-58.0 F)	1975	-45.0 C (-49.0 F)	27
Wettest day (Rx1day)	42.2 mm (1.7 in)	1966	17.3 mm (0.7 in)	27
Wettest five days (Rx5day)	46.6 mm (1.8 in)	1980	29.2 mm (1.1 in)	27
Longest dry spell (CDD)	169 days	1964	75 days	27

Hottest day (TXx)

The hottest day of the year at Mackar Inlet, 1957 to 1983. The record is 21.7 C (71.1 F) in 1966, marked on the chart; the median year is 17.8 C (64.0 F).

Hottest day (TXx) at Mackar Inlet by year
Year	Hottest day (TXx)
1957	-8.9 C (16.0 F)
1958	18.3 C (64.9 F)
1959	16.1 C (61.0 F)
1960	20.0 C (68.0 F)
1961	20.0 C (68.0 F)
1962	17.8 C (64.0 F)
1963	17.2 C (63.0 F)
1964	18.9 C (66.0 F)
1965	14.4 C (57.9 F)
1966	21.7 C (71.1 F)
1967	17.8 C (64.0 F)
1968	12.8 C (55.0 F)
1969	21.1 C (70.0 F)
1970	15.6 C (60.1 F)
1971	20.0 C (68.0 F)
1972	14.4 C (57.9 F)
1973	19.4 C (66.9 F)
1974	21.1 C (70.0 F)
1975	18.3 C (64.9 F)
1976	13.9 C (57.0 F)
1977	15.1 C (59.2 F)
1978	15.5 C (59.9 F)
1979	14.1 C (57.4 F)
1980	18.3 C (64.9 F)
1981	17.5 C (63.5 F)
1982	18.1 C (64.6 F)
1983	16.2 C (61.2 F)

Coldest night (TNn)

The coldest night of the year at Mackar Inlet, 1957 to 1983. The record is -50.0 C (-58.0 F) in 1975, marked on the chart; the median year is -45.0 C (-49.0 F).

Coldest night (TNn) at Mackar Inlet by year
Year	Coldest night (TNn)
1957	-45.0 C (-49.0 F)
1958	-46.7 C (-52.1 F)
1959	-43.9 C (-47.0 F)
1960	-43.3 C (-45.9 F)
1961	-43.9 C (-47.0 F)
1962	-46.1 C (-51.0 F)
1963	-43.9 C (-47.0 F)
1964	-46.7 C (-52.1 F)
1965	-45.0 C (-49.0 F)
1966	-49.4 C (-56.9 F)
1967	-46.7 C (-52.1 F)
1968	-46.7 C (-52.1 F)
1969	-44.4 C (-47.9 F)
1970	-47.2 C (-53.0 F)
1971	-42.8 C (-45.0 F)
1972	-47.8 C (-54.0 F)
1973	-48.3 C (-54.9 F)
1974	-42.8 C (-45.0 F)
1975	-50.0 C (-58.0 F)
1976	-46.1 C (-51.0 F)
1977	-41.7 C (-43.1 F)
1978	-43.1 C (-45.6 F)
1979	-49.5 C (-57.1 F)
1980	-42.5 C (-44.5 F)
1981	-42.0 C (-43.6 F)
1982	-43.5 C (-46.3 F)
1983	-44.4 C (-47.9 F)

Wettest day (Rx1day)

The wettest day of the year at Mackar Inlet, 1957 to 1983. The record is 42.2 mm (1.7 in) in 1966, marked on the chart; the median year is 17.3 mm (0.7 in).

Wettest day (Rx1day) at Mackar Inlet by year
Year	Wettest day (Rx1day)
1957	10.7 mm (0.4 in)
1958	12.7 mm (0.5 in)
1959	15.2 mm (0.6 in)
1960	7.6 mm (0.30 in)
1961	17.3 mm (0.7 in)
1962	22.4 mm (0.9 in)
1963	18.5 mm (0.7 in)
1964	11.4 mm (0.4 in)
1965	16.3 mm (0.6 in)
1966	42.2 mm (1.7 in)
1967	14.2 mm (0.6 in)
1968	19.1 mm (0.8 in)
1969	35.6 mm (1.4 in)
1970	25.7 mm (1.0 in)
1971	17.8 mm (0.7 in)
1972	23.4 mm (0.9 in)
1973	19.1 mm (0.8 in)
1974	19.6 mm (0.8 in)
1975	18.8 mm (0.7 in)
1976	13.0 mm (0.5 in)
1977	14.0 mm (0.6 in)
1978	16.8 mm (0.7 in)
1979	6.8 mm (0.27 in)
1980	19.4 mm (0.8 in)
1981	21.7 mm (0.9 in)
1982	13.8 mm (0.5 in)
1983	12.6 mm (0.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Mackar Inlet, 1957 to 1983. The record is 46.6 mm (1.8 in) in 1980, marked on the chart; the median year is 29.2 mm (1.1 in).

Wettest five days (Rx5day) at Mackar Inlet by year
Year	Wettest five days (Rx5day)
1957	11.5 mm (0.5 in)
1958	24.7 mm (1.0 in)
1959	40.9 mm (1.6 in)
1960	20.2 mm (0.8 in)
1961	30.0 mm (1.2 in)
1962	24.4 mm (1.0 in)
1963	34.0 mm (1.3 in)
1964	15.2 mm (0.6 in)
1965	32.5 mm (1.3 in)
1966	42.2 mm (1.7 in)
1967	29.2 mm (1.1 in)
1968	45.5 mm (1.8 in)
1969	38.9 mm (1.5 in)
1970	27.5 mm (1.1 in)
1971	32.0 mm (1.3 in)
1972	28.7 mm (1.1 in)
1973	40.0 mm (1.6 in)
1974	29.7 mm (1.2 in)
1975	32.4 mm (1.3 in)
1976	14.6 mm (0.6 in)
1977	26.2 mm (1.0 in)
1978	25.0 mm (1.0 in)
1979	16.8 mm (0.7 in)
1980	46.6 mm (1.8 in)
1981	30.2 mm (1.2 in)
1982	23.2 mm (0.9 in)
1983	16.9 mm (0.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Mackar Inlet, 1957 to 1983. The record is 169 days in 1964, marked on the chart; the median year is 75 days.

Longest dry spell (CDD) at Mackar Inlet by year
Year	Longest dry spell (CDD)
1957	43 days
1958	44 days
1959	83 days
1960	49 days
1961	49 days
1962	77 days
1963	61 days
1964	169 days
1965	81 days
1966	70 days
1967	112 days
1968	39 days
1969	75 days
1970	105 days
1971	87 days
1972	84 days
1973	111 days
1974	100 days
1975	98 days
1976	98 days
1977	59 days
1978	95 days
1979	44 days
1980	52 days
1981	32 days
1982	38 days
1983	42 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.

Frost Dates and Growing Season

22 years with a frost

Across 22 years with a frost, the median last spring frost at Mackar Inlet falls on 30 June and the median first autumn frost on 1 July, which leaves a median of 2 days between them.

Frost dates and growing season at Mackar Inlet
Measure	Median, all years	Earliest period	Recent period (1960 to 1981)	Recent against earliest	Fitted trend
Last spring frost	30 June	n/a	30 June	n/a	n/a
First autumn frost	1 July	n/a	1 July	n/a	n/a
Growing days	2 days	n/a	2 days	n/a	n/a

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.

Download the Data

Data for Mackar Inlet standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mackar Inlet 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).