Clyde A Weather Records (CA002400800)

Record envelope, standing records and threshold days for Clyde A (CA002400800), Nunavut, Canada, with 76 years of record.

Key Facts for Clyde A

Clyde A (CA002400800) is a weather station in Nunavut, Canada at 70.48 latitude and -68.52 longitude, 27 m (89 ft) above sea level.
The station reports from 1933 to 2008, 76 years of record.
1,464 records set at Clyde A still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Clyde A set a daily record snowfall of 7.2 cm (2.8 in) on 12 December 1983.

About the Station

Location: Nunavut, Canada, 70.48 latitude, -68.52 longitude.
Elevation: 27 m (89 ft).
Period of record: 1933 to 2008, 76 years.
Eligible elements: tmax, tmin, prcp, snow.

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 Clyde 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 Clyde A, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	3.3 C (37.9 F)	-45.6 C (-50.1 F)	n/a	n/a
Feb	3.3 C (37.9 F)	-46.8 C (-52.2 F)	n/a	n/a
Mar	-1.9 C (28.6 F)	-43.3 C (-45.9 F)	n/a	n/a
Apr	11.7 C (53.1 F)	-41.1 C (-42.0 F)	n/a	n/a
May	8.9 C (48.0 F)	-31.1 C (-24.0 F)	n/a	n/a
Jun	17.8 C (64.0 F)	-17.2 C (1.0 F)	n/a	n/a
Jul	22.2 C (72.0 F)	-5.6 C (21.9 F)	n/a	n/a
Aug	20.0 C (68.0 F)	-5.6 C (21.9 F)	n/a	n/a
Sep	13.3 C (55.9 F)	-16.1 C (3.0 F)	n/a	n/a
Oct	6.1 C (43.0 F)	-26.5 C (-15.7 F)	n/a	n/a
Nov	6.7 C (44.1 F)	-35.0 C (-31.0 F)	n/a	n/a
Dec	2.8 C (37.0 F)	-43.9 C (-47.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Clyde A still stand. 1953 holds the most, with 66.

Standing records at Clyde A by the year they were set
Year set	Standing records
1933	25
1942	3
1943	18
1946	40
1947	40
1948	58
1949	48
1950	45
1951	36
1952	44
1953	66
1954	30
1955	61
1956	35
1957	34
1958	43
1959	28
1960	28
1961	58
1962	19
1963	50
1964	28
1965	37
1966	35
1967	32
1968	39
1969	34
1970	34
1971	20
1972	30
1973	21
1974	14
1975	41
1976	18
1977	34
1978	60
1979	60
1980	49
1981	18
1982	25
1983	26

All-Time Record Progression

3 new records

3 all-time records were set at Clyde A between 7 April 1977 and 17 February 1979. Each dot is a new record.

When Clyde A set new all-time records
Date	Kind	Detail
1977-04-07	Record daily snowfall	Record daily snowfall 41.0 cm (16.1 in)
1979-02-16	Record low maximum temperature	Record low maximum temperature -42.3 C (-44.1 F)
1979-02-17	Record low minimum temperature	Record low minimum temperature -46.8 C (-52.2 F)

Wettest Day of Each Month

Aug: 37.3 mm (1.5 in)

The wettest day on record for each calendar month at Clyde A. The most was 37.3 mm (1.5 in) on 20 August 1960.

Record daily precipitation for each month at Clyde A
Month	Record daily precipitation (mm)	Date
Jan	23.1 mm (0.9 in)	8 January 1963
Feb	10.4 mm (0.4 in)	13 February 1960
Mar	8.2 mm (0.32 in)	4 March 1980
Apr	13.0 mm (0.5 in)	5 April 1954
May	23.7 mm (0.9 in)	1 May 1977
Jun	23.7 mm (0.9 in)	4 June 1982
Jul	32.5 mm (1.3 in)	7 July 1952
Aug	37.3 mm (1.5 in)	20 August 1960
Sep	36.8 mm (1.4 in)	5 September 1952
Oct	26.9 mm (1.1 in)	27 October 1971
Nov	27.4 mm (1.1 in)	2 November 1950
Dec	19.3 mm (0.8 in)	1 December 1975

Period of Record Coverage

1933 to 1983

41 years of record at Clyde A, 1933 to 1983. 4 years have data for under 90 percent of days and are left out of rankings: 1933, 1942, 1943, 1954.

Days with data per year at Clyde A
Year	Days with data	Share of year	Complete
1933	100	27%	No
1942	56	15%	No
1943	251	69%	No
1946	334	92%	Yes
1947	335	92%	Yes
1948	350	96%	Yes
1949	365	100%	Yes
1950	365	100%	Yes
1951	365	100%	Yes
1952	353	96%	Yes
1953	361	99%	Yes
1954	304	83%	No
1955	361	99%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	338	93%	Yes
1960	365	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 Clyde A
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 December 1983	Clyde A, CA	daily snowfall	7.2 cm (2.8 in)	5.9 cm (2.3 in)	9 years	35 of 100 (Notable)
12 December 1983	Clyde A, CA	daily rain	6.6 mm (0.26 in)	5.3 mm (0.21 in)	9 years	20 of 100 (Routine)
10 December 1983	Clyde A, CA	daily snowfall	9.2 cm (3.6 in)	6.2 cm (2.4 in)	9 years	36 of 100 (Notable)
10 December 1983	Clyde A, CA	daily rain	7.0 mm (0.28 in)	4.0 mm (0.16 in)	9 years	20 of 100 (Routine)
6 December 1983	Clyde A, CA	daily rain	10.8 mm (0.4 in)	8.3 mm (0.33 in)	9 years	20 of 100 (Routine)
6 December 1983	Clyde A, CA	daily snowfall	14.2 cm (5.6 in)	11.7 cm (4.6 in)	9 years	47 of 100 (Notable)
14 November 1983	Clyde A, CA	daily rain	8.6 mm (0.34 in)	3.0 mm (0.12 in)	13 years	19 of 100 (Routine)
14 November 1983	Clyde A, CA	daily snowfall	9.4 cm (3.7 in)	3.8 cm (1.5 in)	13 years	19 of 100 (Routine)
7 November 1983	Clyde A, CA	daily rain	17.4 mm (0.7 in)	12.3 mm (0.5 in)	12 years	20 of 100 (Routine)
7 November 1983	Clyde A, CA	daily snowfall	32.4 cm (12.8 in)	24.8 cm (9.8 in)	12 years	48 of 100 (Notable)
6 November 1983	Clyde A, CA	daily snowfall	6.6 cm (2.6 in)	2.0 cm (0.8 in)	12 years	13 of 100 (Routine)
6 November 1983	Clyde A, CA	daily rain	4.2 mm (0.17 in)	0.6 mm (0.02 in)	12 years	10 of 100 (Routine)
22 October 1983	Clyde A, CA	daily snowfall	5.4 cm (2.1 in)	1.0 cm (0.4 in)	0 years	7 of 100 (Routine)
20 October 1983	Clyde A, CA	daily low max (Tie)	-8.3 C (17.1 F)	tie	49 years	4 of 100 (Routine)
8 October 1983	Clyde A, CA	daily low max	-6.4 C (20.5 F)	0.3 C (0.5 F)	6 years	7 of 100 (Routine)
27 September 1983	Clyde A, CA	daily snowfall	11.6 cm (4.6 in)	5.4 cm (2.1 in)	0 years	21 of 100 (Routine)
27 September 1983	Clyde A, CA	daily rain	12.4 mm (0.5 in)	6.2 mm (0.24 in)	0 years	20 of 100 (Routine)
23 September 1983	Clyde A, CA	daily snowfall	6.6 cm (2.6 in)	2.0 cm (0.8 in)	22 years	17 of 100 (Routine)
23 September 1983	Clyde A, CA	daily rain	5.6 mm (0.22 in)	1.0 mm (0.04 in)	22 years	13 of 100 (Routine)
19 September 1983	Clyde A, CA	daily high max (Tie)	6.1 C (43.0 F)	tie	16 years	2 of 100 (Routine)

Climate Trend

33 complete years, 1949 to 1983

One stripe for each of 33 complete years at Clyde A, 1949 to 1983. Blue stripes are years cooler than the station's own mean of -12.2 C (10.0 F); red stripes are warmer. The coolest year was 1972, at -14.4 C (6.0 F), and the warmest was 1980, at -10.4 C (13.2 F). The strongest colour marks a difference of 2.3 C (4.1 F).

Annual mean temperature at Clyde A as warming stripes, 1949 to 1983
Year	Annual mean temperature	Difference from the station mean
1949	-12.4 C	-0.17 C
1950	-12.1 C	+0.17 C
1951	-12.4 C	-0.17 C
1952	-11.6 C	+0.62 C
1953	-12.8 C	-0.55 C
1955	-11.1 C	+1.14 C
1956	-12.8 C	-0.62 C
1957	-12.7 C	-0.50 C
1958	-12.7 C	-0.51 C
1960	-11.0 C	+1.20 C
1961	-14.1 C	-1.91 C
1962	-11.4 C	+0.79 C
1963	-11.3 C	+0.94 C
1964	-12.6 C	-0.40 C
1965	-11.9 C	+0.33 C
1966	-11.7 C	+0.51 C
1967	-11.9 C	+0.33 C
1968	-11.7 C	+0.51 C
1969	-10.8 C	+1.46 C
1970	-12.3 C	-0.06 C
1971	-12.6 C	-0.35 C
1972	-14.4 C	-2.21 C
1973	-11.8 C	+0.40 C
1974	-12.8 C	-0.59 C
1975	-12.2 C	+0.02 C
1976	-12.2 C	-0.01 C
1977	-11.5 C	+0.75 C
1978	-13.4 C	-1.19 C
1979	-12.8 C	-0.58 C
1980	-10.4 C	+1.79 C
1981	-11.0 C	+1.24 C
1982	-12.6 C	-0.41 C
1983	-14.2 C	-1.99 C

The fitted trend in annual mean temperature here over 1949 to 1983 is -0.1 C (-0.4 to 0.3) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.7 to 0.5) 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 Clyde A
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.1 C (-0.4 to 0.3) per decade	-0.1 F (-0.7 to 0.5) per decade	1949 to 1983	33	Not clearly different from zero
Mean daily maximum	-0.2 C (-0.5 to 0.2) per decade	-0.3 F (-0.9 to 0.4) per decade	1949 to 1983	33	Not clearly different from zero
Mean daily minimum	0.03 C (-0.31 to 0.38) per decade	0.1 F (-0.6 to 0.7) per decade	1949 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

1933 to 1983

Yearly extremes at Clyde A: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	22.2 C (72.0 F)	1969	17.2 C (63.0 F)	41
Coldest night (TNn)	-46.8 C (-52.2 F)	1979	-42.8 C (-45.0 F)	41
Wettest day (Rx1day)	37.3 mm (1.5 in)	1960	15.2 mm (0.6 in)	41
Wettest five days (Rx5day)	89.2 mm (3.5 in)	1960	26.0 mm (1.0 in)	41
Longest dry spell (CDD)	107 days	1943	55 days	41

Hottest day (TXx)

The hottest day of the year at Clyde A, 1933 to 1983. The record is 22.2 C (72.0 F) in 1969, marked on the chart; the median year is 17.2 C (63.0 F).

Hottest day (TXx) at Clyde A by year
Year	Hottest day (TXx)
1933	10.0 C (50.0 F)
1942	-7.2 C (19.0 F)
1943	18.3 C (64.9 F)
1946	14.4 C (57.9 F)
1947	13.9 C (57.0 F)
1948	21.7 C (71.1 F)
1949	19.4 C (66.9 F)
1950	20.6 C (69.1 F)
1951	15.6 C (60.1 F)
1952	17.8 C (64.0 F)
1953	17.8 C (64.0 F)
1954	15.0 C (59.0 F)
1955	20.0 C (68.0 F)
1956	18.3 C (64.9 F)
1957	19.4 C (66.9 F)
1958	19.4 C (66.9 F)
1959	12.8 C (55.0 F)
1960	21.1 C (70.0 F)
1961	18.9 C (66.0 F)
1962	17.2 C (63.0 F)
1963	16.7 C (62.1 F)
1964	13.9 C (57.0 F)
1965	13.3 C (55.9 F)
1966	18.3 C (64.9 F)
1967	17.8 C (64.0 F)
1968	9.4 C (48.9 F)
1969	22.2 C (72.0 F)
1970	10.6 C (51.1 F)
1971	19.4 C (66.9 F)
1972	14.4 C (57.9 F)
1973	17.8 C (64.0 F)
1974	17.8 C (64.0 F)
1975	19.4 C (66.9 F)
1976	16.1 C (61.0 F)
1977	14.4 C (57.9 F)
1978	11.0 C (51.8 F)
1979	11.9 C (53.4 F)
1980	15.7 C (60.3 F)
1981	15.4 C (59.7 F)
1982	19.5 C (67.1 F)
1983	14.7 C (58.5 F)

Coldest night (TNn)

The coldest night of the year at Clyde A, 1933 to 1983. The record is -46.8 C (-52.2 F) in 1979, marked on the chart; the median year is -42.8 C (-45.0 F).

Coldest night (TNn) at Clyde A by year
Year	Coldest night (TNn)
1933	-38.3 C (-36.9 F)
1942	-35.0 C (-31.0 F)
1943	-42.8 C (-45.0 F)
1946	-40.0 C (-40.0 F)
1947	-40.6 C (-41.1 F)
1948	-41.1 C (-42.0 F)
1949	-43.9 C (-47.0 F)
1950	-41.1 C (-42.0 F)
1951	-43.3 C (-45.9 F)
1952	-44.4 C (-47.9 F)
1953	-43.9 C (-47.0 F)
1954	-44.4 C (-47.9 F)
1955	-42.2 C (-44.0 F)
1956	-42.8 C (-45.0 F)
1957	-43.3 C (-45.9 F)
1958	-41.7 C (-43.1 F)
1959	-43.9 C (-47.0 F)
1960	-41.1 C (-42.0 F)
1961	-45.6 C (-50.1 F)
1962	-42.2 C (-44.0 F)
1963	-45.6 C (-50.1 F)
1964	-43.3 C (-45.9 F)
1965	-44.4 C (-47.9 F)
1966	-42.8 C (-45.0 F)
1967	-42.8 C (-45.0 F)
1968	-41.1 C (-42.0 F)
1969	-42.8 C (-45.0 F)
1970	-42.8 C (-45.0 F)
1971	-42.8 C (-45.0 F)
1972	-42.8 C (-45.0 F)
1973	-41.7 C (-43.1 F)
1974	-38.3 C (-36.9 F)
1975	-38.9 C (-38.0 F)
1976	-40.0 C (-40.0 F)
1977	-40.7 C (-41.3 F)
1978	-40.4 C (-40.7 F)
1979	-46.8 C (-52.2 F)
1980	-41.1 C (-42.0 F)
1981	-38.7 C (-37.7 F)
1982	-43.8 C (-46.8 F)
1983	-42.0 C (-43.6 F)

Wettest day (Rx1day)

The wettest day of the year at Clyde A, 1933 to 1983. The record is 37.3 mm (1.5 in) in 1960, marked on the chart; the median year is 15.2 mm (0.6 in).

Wettest day (Rx1day) at Clyde A by year
Year	Wettest day (Rx1day)
1933	5.1 mm (0.20 in)
1942	5.1 mm (0.20 in)
1943	16.5 mm (0.6 in)
1946	32.0 mm (1.3 in)
1947	19.6 mm (0.8 in)
1948	14.0 mm (0.6 in)
1949	13.5 mm (0.5 in)
1950	27.4 mm (1.1 in)
1951	35.6 mm (1.4 in)
1952	36.8 mm (1.4 in)
1953	15.2 mm (0.6 in)
1954	13.0 mm (0.5 in)
1955	13.2 mm (0.5 in)
1956	8.1 mm (0.32 in)
1957	9.4 mm (0.37 in)
1958	9.4 mm (0.37 in)
1959	10.9 mm (0.4 in)
1960	37.3 mm (1.5 in)
1961	20.1 mm (0.8 in)
1962	13.5 mm (0.5 in)
1963	23.1 mm (0.9 in)
1964	9.4 mm (0.37 in)
1965	19.8 mm (0.8 in)
1966	8.9 mm (0.35 in)
1967	9.9 mm (0.39 in)
1968	31.2 mm (1.2 in)
1969	14.5 mm (0.6 in)
1970	18.5 mm (0.7 in)
1971	26.9 mm (1.1 in)
1972	6.1 mm (0.24 in)
1973	11.9 mm (0.5 in)
1974	14.7 mm (0.6 in)
1975	19.3 mm (0.8 in)
1976	11.2 mm (0.4 in)
1977	23.7 mm (0.9 in)
1978	19.6 mm (0.8 in)
1979	20.4 mm (0.8 in)
1980	11.6 mm (0.5 in)
1981	18.4 mm (0.7 in)
1982	23.7 mm (0.9 in)
1983	17.4 mm (0.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Clyde A, 1933 to 1983. The record is 89.2 mm (3.5 in) in 1960, marked on the chart; the median year is 26.0 mm (1.0 in).

Wettest five days (Rx5day) at Clyde A by year
Year	Wettest five days (Rx5day)
1933	5.1 mm (0.20 in)
1942	7.1 mm (0.28 in)
1943	29.5 mm (1.2 in)
1946	61.7 mm (2.4 in)
1947	30.7 mm (1.2 in)
1948	34.6 mm (1.4 in)
1949	23.1 mm (0.9 in)
1950	37.8 mm (1.5 in)
1951	43.7 mm (1.7 in)
1952	48.5 mm (1.9 in)
1953	38.1 mm (1.5 in)
1954	19.6 mm (0.8 in)
1955	28.0 mm (1.1 in)
1956	18.5 mm (0.7 in)
1957	15.0 mm (0.6 in)
1958	10.2 mm (0.4 in)
1959	23.6 mm (0.9 in)
1960	89.2 mm (3.5 in)
1961	43.2 mm (1.7 in)
1962	24.2 mm (1.0 in)
1963	26.0 mm (1.0 in)
1964	21.0 mm (0.8 in)
1965	33.8 mm (1.3 in)
1966	16.3 mm (0.6 in)
1967	10.9 mm (0.4 in)
1968	40.8 mm (1.6 in)
1969	18.5 mm (0.7 in)
1970	29.7 mm (1.2 in)
1971	34.3 mm (1.4 in)
1972	16.2 mm (0.6 in)
1973	14.2 mm (0.6 in)
1974	17.0 mm (0.7 in)
1975	21.1 mm (0.8 in)
1976	19.3 mm (0.8 in)
1977	45.0 mm (1.8 in)
1978	30.8 mm (1.2 in)
1979	44.0 mm (1.7 in)
1980	21.4 mm (0.8 in)
1981	31.0 mm (1.2 in)
1982	29.7 mm (1.2 in)
1983	25.0 mm (1.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Clyde A, 1933 to 1983. The record is 107 days in 1943, marked on the chart; the median year is 55 days.

Longest dry spell (CDD) at Clyde A by year
Year	Longest dry spell (CDD)
1933	21 days
1942	28 days
1943	107 days
1946	70 days
1947	48 days
1948	63 days
1949	32 days
1950	24 days
1951	30 days
1952	38 days
1953	96 days
1954	60 days
1955	63 days
1956	97 days
1957	58 days
1958	70 days
1959	69 days
1960	86 days
1961	57 days
1962	55 days
1963	83 days
1964	107 days
1965	35 days
1966	61 days
1967	60 days
1968	37 days
1969	75 days
1970	52 days
1971	53 days
1972	57 days
1973	41 days
1974	62 days
1975	69 days
1976	42 days
1977	39 days
1978	46 days
1979	28 days
1980	33 days
1981	29 days
1982	30 days
1983	29 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 Clyde A falls on 30 June and the median first autumn frost on 1 July, which leaves a median of 2 days between them.

Fitted over all years, the growing season changes by +0.4 days per decade at this station.

Frost dates and growing season at Clyde A
Measure	Median, all years	Earliest period	Recent period (1952 to 1983)	Recent against earliest	Fitted trend
Last spring frost	30 June	n/a	30 June	n/a	-0.3 days per decade
First autumn frost	1 July	n/a	1 July	n/a	+0.1 days per decade
Growing days	2 days	n/a	2 days	n/a	+0.4 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

37 years, 1946 to 1983

A day with at least 16.6 mm (0.7 in) of rain is expected about once in 2 years. A day with at least 47.7 mm (1.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Clyde 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	16.6 mm (0.7 in)
5 years	24.4 mm (1.0 in)
10 years	29.7 mm (1.2 in)
25 years	36.7 mm (1.4 in)
50 years	42.2 mm (1.7 in)	Longer than the 37 years of record
100 years	47.7 mm (1.9 in)	Longer than the 37 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, 37 years of values from 1946 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: 37.3 mm (1.5 in) in 1960; 36.8 mm (1.4 in) in 1952; 35.6 mm (1.4 in) in 1951.

Download the Data

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