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Prince Patrick Island
	Prince Patrick Island, showing; the Mould Bay weather station
	Prince Patrick Island Prince Patrick Island
Geography
Location	Northern Canada
Coordinates	76°45′02″N 119°30′12″W / 76.75056°N 119.50333°W
Archipelago	Queen Elizabeth Islands; Arctic Archipelago
Area	15,848 km2 (6,119 sq mi)
Area rank	55th
Highest elevation	279 m (915 ft)
Highest point	unnamed
Administration
	Canada
Territory	Northwest Territories
Demographics
Population	Uninhabited

A member of the Arctic Archipelago, Prince Patrick Island is the westernmost of the Queen Elizabeth Islands in the Northwest Territories of Canada, lying northwest of Melville Island. The area of Prince Patrick Island is 15,848 km² (6,119 sq mi),^[2] making it the 55th largest island in the world and Canada's 14th largest island. It has historically been icebound all year, making it one of the least accessible parts of Canada. Located at the entrance of the M'Clure Strait, Prince Patrick Island is uninhabited.

The first known sighting of the island was in 1853 by the Irish naval officer George Mecham, when it was explored by him and his fellow Irish explorer Francis Leopold McClintock in the spring of that year during the Edward Belcher expedition.^[3] Much later, it was named for Prince Arthur William Patrick, Duke of Connaught, who was Governor General of Canada from 1911 to 1916.

The island rises to only about 279 m (915 ft),^[4] and the area is seismically active.

Weather Station

A High Arctic Weather Station ("HAWS") and associated airstrip called Mould Bay were opened in 1948 as part of a joint Canada-US military effort to support a weather station network. Regular weather observations began on May 14, 1948. It had a temporary staff of between 10 and 40 people. Staff size normally increased during summer months, when the station was resupplied from the south.

During the period of US National Weather Service participation, the site was known as a Joint Arctic Weather Station ("JAWS"). Executive officers alternated between Canadians and their US counterparts. US participation ended in 1972. The station was closed in 1997, owing to budget cuts. It was replaced with an automated weather station at a new location on the airstrip, downhill from the central buildings and observatory. The last staffed weather observations were taken on March 31, 1997, ending the continuous weather record of 1948–1997.

The buildings still stand, but as of 2017, most have deteriorated to an unrepairable state.^[5] The station represented the only known long-term human settlement of the Island.

Climate

Mould Bay has a Polar climate (ET) with cool, intermittent summers and long, severely cold winters. September is the snowiest month of the year, averaging 18.5 cm (7.3 in) of snowfall.

Climate data for Mould Bay Airport, 1981–2010 normals, extremes 1948–present
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Record high °C (°F)	−5.3 (22.5)	−4.9 (23.2)	−6.7 (19.9)	−0.5 (31.1)	6.3 (43.3)	18.0 (64.4)	22.7 (72.9)	16.3 (61.3)	7.8 (46.0)	2.5 (36.5)	−1.7 (28.9)	−2.6 (27.3)	22.7 (72.9)
Mean daily maximum °C (°F)	−29.4 (−20.9)	−30.0 (−22.0)	−27.6 (−17.7)	−19.1 (−2.4)	−7.4 (18.7)	2.9 (37.2)	6.7 (44.1)	3.0 (37.4)	−3.8 (25.2)	−14.1 (6.6)	−23.1 (−9.6)	−27.0 (−16.6)	−14.1 (6.6)
Daily mean °C (°F)	−33.1 (−27.6)	−33.9 (−29.0)	−31.4 (−24.5)	−23.0 (−9.4)	−10.4 (13.3)	0.6 (33.1)	4.0 (39.2)	0.9 (33.6)	−6.2 (20.8)	−17.7 (0.1)	−26.6 (−15.9)	−30.5 (−22.9)	−17.3 (0.9)
Mean daily minimum °C (°F)	−36.9 (−34.4)	−37.6 (−35.7)	−34.9 (−30.8)	−26.8 (−16.2)	−13.5 (7.7)	−1.7 (28.9)	1.2 (34.2)	−1.3 (29.7)	−8.5 (16.7)	−21.3 (−6.3)	−30.2 (−22.4)	−34.0 (−29.2)	−20.4 (−4.7)
Record low °C (°F)	−52.2 (−62.0)	−53.9 (−65.0)	−54.7 (−66.5)	−46.1 (−51.0)	−29.6 (−21.3)	−14.4 (6.1)	−3.9 (25.0)	−13.5 (7.7)	−26.1 (−15.0)	−38.9 (−38.0)	−44.4 (−47.9)	−52.8 (−63.0)	−54.7 (−66.5)
Record low wind chill	−72.8	−72.0	−70.1	−60.5	−39.2	−22.5	−10.8	−17.3	−35.0	−52.3	−57.9	−68.8	−72.8
Average precipitation mm (inches)	4.5 (0.18)	4.6 (0.18)	4.2 (0.17)	3.4 (0.13)	10.8 (0.43)	9.8 (0.39)	13.8 (0.54)	23.8 (0.94)	18.1 (0.71)	12.9 (0.51)	6.7 (0.26)	4.5 (0.18)	117.2 (4.61)
Average rainfall mm (inches)	0.0 (0.0)	0.0 (0.0)	0.0 (0.0)	0.0 (0.0)	0.0 (0.0)	3.6 (0.14)	10.0 (0.39)	11.7 (0.46)	2.2 (0.09)	0.0 (0.0)	0.0 (0.0)	0.0 (0.0)	27.5 (1.08)
Average snowfall cm (inches)	5.4 (2.1)	5.8 (2.3)	5.1 (2.0)	4.7 (1.9)	15.0 (5.9)	6.6 (2.6)	3.8 (1.5)	12.9 (5.1)	18.5 (7.3)	16.1 (6.3)	9.0 (3.5)	6.3 (2.5)	109.2 (43.0)
Average precipitation days (≥ 0.2 mm)	6.1	6.6	6.4	4.9	10.1	6.3	9.0	13.3	12.8	11.6	9.6	6.9	103.6
Average rainy days (≥ 0.2 mm)	0.0	0.0	0.0	0.0	0.0	2.9	7.8	6.2	1.1	0.0	0.0	0.0	18.0
Average snowy days (≥ 0.2 cm)	6.6	6.9	6.8	5.8	12.2	4.2	3.4	8.9	12.5	12.2	10.0	7.1	96.5
Average relative humidity (%)	69.5	67.4	64.6	73.2	82.0	81.3	79.6	84.8	88.2	80.3	73.3	69.6	76.1
Mean monthly sunshine hours	0.0	0.0	97.9	287.5	267.9	297.2	254.1	121.0	49.6	15.5	0.0	0.0	1,390.5
Percent possible sunshine	0.0	0.0	27.8	49.9	36.0	41.3	34.2	17.4	11.6	6.9	0.0	0.0	25.0
Source: Environment and Climate Change Canada^[6]^[7]^[8]^[9]^[10]

In popular culture

Prince Patrick Island is the setting for a work of fiction, the novel The Lost Ones (1961) by Ian Cameron (Donald G. Payne). It was filmed as the Walt Disney Pictures film The Island at the Top of the World in 1974. The novel tells of a lost colony of Vikings living in a lost valley in the island, which, thanks to the volcanoes on the island, is warm and habitable.