Iqaluit A Weather Records (CA002402590)

Record envelope, standing records and threshold days for Iqaluit A (CA002402590), Nunavut, Canada, with 63 years of record.

Key Facts for Iqaluit A

Iqaluit A (CA002402590) is a weather station in Nunavut, Canada at 63.75 latitude and -68.55 longitude, 34 m (112 ft) above sea level.
The station reports from 1946 to 2008, 63 years of record.
1,464 records set at Iqaluit A still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Iqaluit A set a daily record low minimum temperature of -33.3 C (-27.9 F) on 30 November 1983.

About the Station

Location: Nunavut, Canada, 63.75 latitude, -68.55 longitude.
Elevation: 34 m (112 ft).
Period of record: 1946 to 2008, 63 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

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 Iqaluit A. 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 Iqaluit A, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	3.9 C (39.0 F)	-45.0 C (-49.0 F)	n/a	n/a
Feb	4.4 C (39.9 F)	-45.6 C (-50.1 F)	n/a	n/a
Mar	3.9 C (39.0 F)	-43.9 C (-47.0 F)	n/a	n/a
Apr	7.2 C (45.0 F)	-34.2 C (-29.6 F)	n/a	n/a
May	13.3 C (55.9 F)	-26.1 C (-15.0 F)	n/a	n/a
Jun	21.7 C (71.1 F)	-10.2 C (13.6 F)	n/a	n/a
Jul	24.4 C (75.9 F)	-2.8 C (27.0 F)	n/a	n/a
Aug	23.3 C (73.9 F)	-2.2 C (28.0 F)	n/a	n/a
Sep	17.2 C (63.0 F)	-12.8 C (9.0 F)	n/a	n/a
Oct	7.3 C (45.1 F)	-27.1 C (-16.8 F)	n/a	n/a
Nov	5.6 C (42.1 F)	-36.2 C (-33.2 F)	n/a	n/a
Dec	3.3 C (37.9 F)	-42.2 C (-44.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Iqaluit A still stand. 1955 holds the most, with 89.

Standing records at Iqaluit A by the year they were set
Year set	Standing records
1946	27
1947	41
1948	37
1949	38
1950	50
1951	24
1952	48
1953	64
1954	45
1955	89
1956	19
1957	36
1958	38
1959	33
1960	40
1961	27
1962	30
1963	58
1964	40
1965	37
1966	42
1967	30
1968	34
1969	39
1970	35
1971	26
1972	45
1973	29
1974	34
1975	24
1976	38
1977	30
1978	70
1979	30
1980	25
1981	45
1982	34
1983	33

All-Time Record Progression

1 new records

1 all-time records were set at Iqaluit A between 12 February 1981 and 12 February 1981. Each dot is a new record.

Wettest Day of Each Month

Jul: 52.8 mm (2.1 in)

The wettest day on record for each calendar month at Iqaluit A. The most was 52.8 mm (2.1 in) on 14 July 1968.

Record daily precipitation for each month at Iqaluit A
Month	Record daily precipitation (mm)	Date
Jan	30.7 mm (1.2 in)	18 January 1958
Feb	27.4 mm (1.1 in)	12 February 1981
Mar	23.9 mm (0.9 in)	29 March 1953
Apr	23.9 mm (0.9 in)	7 April 1973
May	27.4 mm (1.1 in)	9 May 1965
Jun	30.2 mm (1.2 in)	6 June 1980
Jul	52.8 mm (2.1 in)	14 July 1968
Aug	33.8 mm (1.3 in)	18 August 1960
Sep	40.4 mm (1.6 in)	1 September 1979
Oct	20.6 mm (0.8 in)	8 October 1961
Nov	27.9 mm (1.1 in)	24 November 1960
Dec	30.5 mm (1.2 in)	8 December 1949

Period of Record Coverage

1946 to 1983

38 years of record at Iqaluit A, 1946 to 1983. 2 years have data for under 90 percent of days and are left out of rankings: 1946, 1947.

Days with data per year at Iqaluit A
Year	Days with data	Share of year	Complete
1946	304	83%	No
1947	322	88%	No
1948	336	92%	Yes
1949	343	94%	Yes
1950	364	100%	Yes
1951	365	100%	Yes
1952	366	100%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	366	100%	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	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes

Latest Records

Latest records at Iqaluit A
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 November 1983	Iqaluit A, CA	daily low min	-33.3 C (-27.9 F)	1.1 C (2.0 F)	16 years	8 of 100 (Routine)
6 November 1983	Iqaluit A, CA	daily high min	-1.6 C (29.1 F)	0.7 C (1.3 F)	2 years	3 of 100 (Routine)
21 October 1983	Iqaluit A, CA	daily rain	13.5 mm (0.5 in)	1.3 mm (0.05 in)	17 years	11 of 100 (Routine)
13 September 1983	Iqaluit A, CA	daily low max	0.9 C (33.6 F)	0.8 C (1.4 F)	36 years	16 of 100 (Routine)
13 September 1983	Iqaluit A, CA	daily low min	-4.6 C (23.7 F)	0.7 C (1.3 F)	20 years	11 of 100 (Routine)
12 September 1983	Iqaluit A, CA	daily low min	-3.1 C (26.4 F)	0.9 C (1.6 F)	20 years	12 of 100 (Routine)
11 September 1983	Iqaluit A, CA	daily high max	10.0 C (50.0 F)	0.6 C (1.1 F)	14 years	8 of 100 (Routine)
8 September 1983	Iqaluit A, CA	daily low min	-2.3 C (27.9 F)	0.5 C (0.9 F)	5 years	5 of 100 (Routine)
7 September 1983	Iqaluit A, CA	daily low min	-1.5 C (29.3 F)	0.9 C (1.6 F)	28 years	14 of 100 (Routine)
6 September 1983	Iqaluit A, CA	daily low min	-2.2 C (28.0 F)	0.4 C (0.7 F)	0 years	4 of 100 (Routine)
5 September 1983	Iqaluit A, CA	daily low min	-1.8 C (28.8 F)	0.7 C (1.3 F)	24 years	12 of 100 (Routine)
5 September 1983	Iqaluit A, CA	daily low max	3.5 C (38.3 F)	0.3 C (0.5 F)	4 years	4 of 100 (Routine)
3 September 1983	Iqaluit A, CA	daily low min	-1.3 C (29.7 F)	0.2 C (0.4 F)	12 years	6 of 100 (Routine)
5 August 1983	Iqaluit A, CA	daily low min (Tie)	1.7 C (35.1 F)	tie	6 years	1 of 100 (Routine)
25 July 1983	Iqaluit A, CA	daily low min	0.8 C (33.4 F)	0.9 C (1.6 F)	28 years	15 of 100 (Routine)
16 July 1983	Iqaluit A, CA	daily high max	20.9 C (69.6 F)	3.7 C (6.7 F)	25 years	18 of 100 (Routine)
5 July 1983	Iqaluit A, CA	daily rain	16.4 mm (0.6 in)	2.2 mm (0.09 in)	13 years	10 of 100 (Routine)
26 June 1983	Iqaluit A, CA	daily rain	16.2 mm (0.6 in)	2.5 mm (0.10 in)	16 years	13 of 100 (Routine)
14 June 1983	Iqaluit A, CA	daily rain	9.4 mm (0.37 in)	5.0 mm (0.20 in)	0 years	13 of 100 (Routine)
1 June 1983	Iqaluit A, CA	monthly snow depth	24.0 cm (9.4 in)	5.0 cm (2.0 in)	1 year	28 of 100 (Routine)

Climate Trend

33 complete years, 1951 to 1983

One stripe for each of 33 complete years at Iqaluit A, 1951 to 1983. Blue stripes are years cooler than the station's own mean of -9.3 C (15.3 F); red stripes are warmer. The coolest year was 1972, at -12.7 C (9.1 F), and the warmest was 1981, at -6.7 C (19.9 F). The strongest colour marks a difference of 3.5 C (6.3 F).

Annual mean temperature at Iqaluit A as warming stripes, 1951 to 1983
Year	Annual mean temperature	Difference from the station mean
1951	-9.4 C	-0.13 C
1952	-8.5 C	+0.81 C
1953	-9.4 C	-0.10 C
1954	-9.4 C	-0.14 C
1955	-6.7 C	+2.56 C
1956	-9.7 C	-0.45 C
1957	-9.8 C	-0.48 C
1958	-8.1 C	+1.19 C
1959	-9.7 C	-0.45 C
1960	-8.0 C	+1.33 C
1961	-9.8 C	-0.51 C
1962	-9.4 C	-0.12 C
1963	-8.8 C	+0.44 C
1964	-10.2 C	-0.96 C
1965	-8.9 C	+0.36 C
1966	-7.7 C	+1.55 C
1967	-10.4 C	-1.13 C
1968	-8.7 C	+0.55 C
1969	-8.0 C	+1.25 C
1970	-9.4 C	-0.07 C
1971	-9.2 C	+0.11 C
1972	-12.7 C	-3.44 C
1973	-9.3 C	-0.05 C
1974	-10.5 C	-1.21 C
1975	-9.3 C	-0.04 C
1976	-10.6 C	-1.32 C
1977	-7.1 C	+2.18 C
1978	-11.2 C	-1.91 C
1979	-9.2 C	+0.05 C
1980	-8.1 C	+1.22 C
1981	-6.7 C	+2.58 C
1982	-10.5 C	-1.25 C
1983	-11.6 C	-2.36 C

The fitted trend in annual mean temperature here over 1951 to 1983 is -0.3 C (-0.8 to 0.2) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.5 F (-1.4 to 0.4) per decade. The slope is a straight line fitted to 33 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Iqaluit A
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.3 C (-0.8 to 0.2) per decade	-0.5 F (-1.4 to 0.4) per decade	1951 to 1983	33	Not clearly different from zero
Mean daily maximum	-0.2 C (-0.7 to 0.3) per decade	-0.4 F (-1.3 to 0.5) per decade	1951 to 1983	33	Not clearly different from zero
Mean daily minimum	-0.3 C (-0.8 to 0.2) per decade	-0.5 F (-1.4 to 0.4) per decade	1951 to 1983	33	Not clearly different from zero

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

1946 to 1983

Yearly extremes at Iqaluit A: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	24.4 C (75.9 F)	1948	20.8 C (69.4 F)	38
Coldest night (TNn)	-45.6 C (-50.1 F)	1967	-42.2 C (-44.0 F)	38
Wettest day (Rx1day)	52.8 mm (2.1 in)	1968	23.8 mm (0.9 in)	38
Wettest five days (Rx5day)	115.5 mm (4.5 in)	1979	40.0 mm (1.6 in)	38
Longest dry spell (CDD)	68 days	1947	27 days	38

Hottest day (TXx)

The hottest day of the year at Iqaluit A, 1946 to 1983. The record is 24.4 C (75.9 F) in 1948, marked on the chart; the median year is 20.8 C (69.4 F).

Hottest day (TXx) at Iqaluit A by year
Year	Hottest day (TXx)
1946	18.9 C (66.0 F)
1947	16.7 C (62.1 F)
1948	24.4 C (75.9 F)
1949	21.7 C (71.1 F)
1950	20.0 C (68.0 F)
1951	17.2 C (63.0 F)
1952	21.7 C (71.1 F)
1953	15.6 C (60.1 F)
1954	24.4 C (75.9 F)
1955	22.2 C (72.0 F)
1956	20.6 C (69.1 F)
1957	23.9 C (75.0 F)
1958	20.6 C (69.1 F)
1959	20.6 C (69.1 F)
1960	20.6 C (69.1 F)
1961	22.2 C (72.0 F)
1962	16.7 C (62.1 F)
1963	21.1 C (70.0 F)
1964	18.9 C (66.0 F)
1965	22.2 C (72.0 F)
1966	22.2 C (72.0 F)
1967	22.2 C (72.0 F)
1968	18.9 C (66.0 F)
1969	24.4 C (75.9 F)
1970	16.1 C (61.0 F)
1971	18.9 C (66.0 F)
1972	21.1 C (70.0 F)
1973	21.7 C (71.1 F)
1974	22.2 C (72.0 F)
1975	21.7 C (71.1 F)
1976	15.0 C (59.0 F)
1977	18.6 C (65.5 F)
1978	20.7 C (69.3 F)
1979	18.0 C (64.4 F)
1980	22.4 C (72.3 F)
1981	23.3 C (73.9 F)
1982	20.1 C (68.2 F)
1983	20.9 C (69.6 F)

Coldest night (TNn)

The coldest night of the year at Iqaluit A, 1946 to 1983. The record is -45.6 C (-50.1 F) in 1967, marked on the chart; the median year is -42.2 C (-44.0 F).

Coldest night (TNn) at Iqaluit A by year
Year	Coldest night (TNn)
1946	-42.2 C (-44.0 F)
1947	-41.7 C (-43.1 F)
1948	-40.0 C (-40.0 F)
1949	-41.7 C (-43.1 F)
1950	-45.0 C (-49.0 F)
1951	-43.3 C (-45.9 F)
1952	-44.4 C (-47.9 F)
1953	-45.0 C (-49.0 F)
1954	-41.1 C (-42.0 F)
1955	-44.4 C (-47.9 F)
1956	-38.3 C (-36.9 F)
1957	-45.0 C (-49.0 F)
1958	-40.6 C (-41.1 F)
1959	-42.8 C (-45.0 F)
1960	-40.6 C (-41.1 F)
1961	-43.3 C (-45.9 F)
1962	-42.8 C (-45.0 F)
1963	-41.1 C (-42.0 F)
1964	-43.9 C (-47.0 F)
1965	-42.2 C (-44.0 F)
1966	-37.2 C (-35.0 F)
1967	-45.6 C (-50.1 F)
1968	-40.6 C (-41.1 F)
1969	-37.8 C (-36.0 F)
1970	-43.3 C (-45.9 F)
1971	-41.1 C (-42.0 F)
1972	-42.8 C (-45.0 F)
1973	-45.6 C (-50.1 F)
1974	-42.2 C (-44.0 F)
1975	-42.2 C (-44.0 F)
1976	-40.0 C (-40.0 F)
1977	-38.3 C (-36.9 F)
1978	-40.6 C (-41.1 F)
1979	-44.7 C (-48.5 F)
1980	-37.5 C (-35.5 F)
1981	-36.8 C (-34.2 F)
1982	-42.0 C (-43.6 F)
1983	-44.0 C (-47.2 F)

Wettest day (Rx1day)

The wettest day of the year at Iqaluit A, 1946 to 1983. The record is 52.8 mm (2.1 in) in 1968, marked on the chart; the median year is 23.8 mm (0.9 in).

Wettest day (Rx1day) at Iqaluit A by year
Year	Wettest day (Rx1day)
1946	21.3 mm (0.8 in)
1947	16.0 mm (0.6 in)
1948	19.6 mm (0.8 in)
1949	30.5 mm (1.2 in)
1950	20.3 mm (0.8 in)
1951	23.1 mm (0.9 in)
1952	31.5 mm (1.2 in)
1953	23.9 mm (0.9 in)
1954	14.7 mm (0.6 in)
1955	19.6 mm (0.8 in)
1956	23.1 mm (0.9 in)
1957	31.2 mm (1.2 in)
1958	30.7 mm (1.2 in)
1959	39.1 mm (1.5 in)
1960	33.8 mm (1.3 in)
1961	28.4 mm (1.1 in)
1962	17.8 mm (0.7 in)
1963	19.6 mm (0.8 in)
1964	18.5 mm (0.7 in)
1965	27.4 mm (1.1 in)
1966	26.4 mm (1.0 in)
1967	20.1 mm (0.8 in)
1968	52.8 mm (2.1 in)
1969	22.6 mm (0.9 in)
1970	23.6 mm (0.9 in)
1971	22.4 mm (0.9 in)
1972	19.1 mm (0.8 in)
1973	23.9 mm (0.9 in)
1974	21.8 mm (0.9 in)
1975	31.5 mm (1.2 in)
1976	32.0 mm (1.3 in)
1977	26.7 mm (1.1 in)
1978	24.4 mm (1.0 in)
1979	40.4 mm (1.6 in)
1980	30.2 mm (1.2 in)
1981	29.4 mm (1.2 in)
1982	18.5 mm (0.7 in)
1983	19.8 mm (0.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Iqaluit A, 1946 to 1983. The record is 115.5 mm (4.5 in) in 1979, marked on the chart; the median year is 40.0 mm (1.6 in).

Wettest five days (Rx5day) at Iqaluit A by year
Year	Wettest five days (Rx5day)
1946	37.8 mm (1.5 in)
1947	26.4 mm (1.0 in)
1948	36.2 mm (1.4 in)
1949	36.6 mm (1.4 in)
1950	50.9 mm (2.0 in)
1951	53.5 mm (2.1 in)
1952	33.3 mm (1.3 in)
1953	39.9 mm (1.6 in)
1954	33.8 mm (1.3 in)
1955	40.1 mm (1.6 in)
1956	37.1 mm (1.5 in)
1957	56.2 mm (2.2 in)
1958	51.5 mm (2.0 in)
1959	59.7 mm (2.4 in)
1960	56.6 mm (2.2 in)
1961	48.4 mm (1.9 in)
1962	31.5 mm (1.2 in)
1963	32.0 mm (1.3 in)
1964	29.7 mm (1.2 in)
1965	56.4 mm (2.2 in)
1966	39.9 mm (1.6 in)
1967	32.8 mm (1.3 in)
1968	77.7 mm (3.1 in)
1969	31.0 mm (1.2 in)
1970	43.7 mm (1.7 in)
1971	43.2 mm (1.7 in)
1972	34.3 mm (1.4 in)
1973	43.7 mm (1.7 in)
1974	32.7 mm (1.3 in)
1975	59.7 mm (2.4 in)
1976	41.4 mm (1.6 in)
1977	43.7 mm (1.7 in)
1978	33.9 mm (1.3 in)
1979	115.5 mm (4.5 in)
1980	47.2 mm (1.9 in)
1981	56.6 mm (2.2 in)
1982	38.7 mm (1.5 in)
1983	36.4 mm (1.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Iqaluit A, 1946 to 1983. The record is 68 days in 1947, marked on the chart; the median year is 27 days.

Longest dry spell (CDD) at Iqaluit A by year
Year	Longest dry spell (CDD)
1946	20 days
1947	68 days
1948	25 days
1949	42 days
1950	32 days
1951	19 days
1952	20 days
1953	27 days
1954	40 days
1955	25 days
1956	23 days
1957	48 days
1958	19 days
1959	27 days
1960	42 days
1961	35 days
1962	32 days
1963	24 days
1964	32 days
1965	62 days
1966	25 days
1967	37 days
1968	31 days
1969	27 days
1970	17 days
1971	33 days
1972	30 days
1973	21 days
1974	42 days
1975	64 days
1976	19 days
1977	21 days
1978	56 days
1979	23 days
1980	21 days
1981	15 days
1982	23 days
1983	30 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

33 years with a frost

Across 33 years with a frost, the median last spring frost at Iqaluit A falls on 22 June and the median first autumn frost on 21 July, which leaves a median of 38 days between them.

Fitted over all years, the growing season changes by -2.9 days per decade at this station.

Frost dates and growing season at Iqaluit A
Measure	Median, all years	Earliest period	Recent period (1954 to 1983)	Recent against earliest	Fitted trend
Last spring frost	22 June	n/a	23 June	n/a	-0.7 days per decade
First autumn frost	21 July	n/a	14 July	n/a	-3.5 days per decade
Growing days	38 days	n/a	23 days	n/a	-2.9 days per decade

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.

Rainfall Return Levels

36 years, 1948 to 1983

A day with at least 24.5 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 52.8 mm (2.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Iqaluit A: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	24.5 mm (1.0 in)
5 years	31.1 mm (1.2 in)
10 years	35.8 mm (1.4 in)
25 years	42.2 mm (1.7 in)
50 years	47.4 mm (1.9 in)	Longer than the 36 years of record
100 years	52.8 mm (2.1 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 1948 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: 52.8 mm (2.1 in) in 1968; 40.4 mm (1.6 in) in 1979; 39.1 mm (1.5 in) in 1959.

Download the Data

Data for Iqaluit A standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Iqaluit A 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).