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Statements

Subject Item
dbr:Peter_Sinks
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rdfs:label
Peter Sinks
rdfs:comment
Peter Sinks is a natural sinkhole in northern Utah that is one of the coldest places in the contiguous United States. Peter Sinks is located 8,100 feet (2,500 m) above sea level, in the Bear River Mountains east of Logan, within the Wasatch-Cache National Forest. Due to temperature inversions that trap cold nighttime air, it routinely produces the lowest temperatures in the contiguous United States. Even in the summer, the bottom of the sinkhole rarely goes four consecutive days without freezing. It is so cold near the bottom of the hole that trees are unable to grow.
geo:lat
41.91249847412109
geo:long
-111.5138854980469
dcterms:subject
dbc:Landforms_of_Cache_County,_Utah dbc:Protected_areas_of_Cache_County,_Utah dbc:Mountain_meteorology dbc:Sinkholes_of_the_United_States
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17964692
dbo:wikiPageRevisionID
1114943226
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dbp:sepAvgRecordHighF
76
dbp:sepAvgRecordLowF
12
dbp:sepRecordHighF
77
dbp:sepRecordLowF
-10
dbp:yearAvgRecordHighF
83
dbp:yearAvgRecordLowF
-47
dbp:wikiPageUsesTemplate
dbt:Weather_box dbt:Citation dbt:Reflist dbt:Ref_end dbt:Ref_begin dbt:Cite_web dbt:Coord dbt:Convert
dbp:aprHighF
41.9
dbp:aprLowF
9.9
dbp:augHighF
71.7
dbp:augLowF
34.8
dbp:decHighF
27
dbp:decLowF
-3.9
dbp:febHighF
29.1
dbp:febLowF
-6.2
dbp:janHighF
28.7
dbp:janLowF
-4.1
dbp:julHighF
73.8
dbp:julLowF
35.9
dbp:junHighF
62.6
dbp:junLowF
28.4
dbp:location
Peter Sinks, Utah, 2010–February 2015 average highs and lows, 2010–October 2019 average records, extremes 1985-present
dbp:marHighF
37.5
dbp:marLowF
3.3
dbp:mayHighF
50.5
dbp:mayLowF
21.7
dbp:novHighF
34.4
dbp:novLowF
5.8
dbp:octHighF
49.6
dbp:octLowF
19.7
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63.9
dbp:sepLowF
26.9
dbp:singleLine
Y
dbp:source
The Weather Forums, The Washington Post
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41.9125 -111.51388888888889
dbo:abstract
Peter Sinks is a natural sinkhole in northern Utah that is one of the coldest places in the contiguous United States. Peter Sinks is located 8,100 feet (2,500 m) above sea level, in the Bear River Mountains east of Logan, within the Wasatch-Cache National Forest. Due to temperature inversions that trap cold nighttime air, it routinely produces the lowest temperatures in the contiguous United States. Even in the summer, the bottom of the sinkhole rarely goes four consecutive days without freezing. It is so cold near the bottom of the hole that trees are unable to grow. On 1 February 1985, a temperature of −69.3 °F (−56.3 °C) was recorded there, the lowest recorded temperature in Utah, and the second-lowest temperature ever recorded in the contiguous United States. Peter Sinks' meteorological significance was discovered by Utah State University student Zane Stephens in 1983. Stephens, along with the Utah Climate Center, placed measuring instruments in the valley in the winter of 1984. On February 1, 1985, Peter Sinks dropped to −69.3 °F (−56.3 °C), while another nearby valley, Middle Sink, located 3 miles (4.8 km) to the north-east, dropped to −64 °F (−53 °C). Stephens hiked into Middle Sink along with Burns Israelsen to record the temperature personally. He then flew into Peter Sinks in a KUTV television station helicopter with broadcasting meteorologist Mark Eubank. State climatologist Gayle Bingham also traveled to the area and confirmed the temperature. The alcohol thermometer being used was retrieved and sent to the Bureau of Standards in Washington, D.C. to confirm the temperature. Since 1985, Peter Sinks and Middle Sink have been studied extensively by Stephens and Tim Wright with the use of Campbell Scientific weather equipment. On January 29, 2002, the temperature dropped to −62 °F (−52 °C) at Middle Sink. Stephens and Wright's main study is the change in temperature through the inversion at these sites. These valleys act like a dam trapping cold air, with the coldest of the air settling to the bottom of the valley. Stephens and Wright have found that temperatures between the cold air "lake" and the warmer air above the valley can be different by as much as 70 °F (39 °C).
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81
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20
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82
dbp:augRecordLowF
7
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43
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-43
dbp:decRecordHighF
45
dbp:decRecordLowF
-57
dbp:febAvgRecordHighF
41
dbp:febAvgRecordLowF
-35
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46
dbp:febRecordLowF
-69
dbp:janAvgRecordHighF
41
dbp:janAvgRecordLowF
-40
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49
dbp:janRecordLowF
-66
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82
dbp:julAvgRecordLowF
23
dbp:julRecordHighF
83
dbp:julRecordLowF
13
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78
dbp:junAvgRecordLowF
18
dbp:junRecordHighF
83
dbp:junRecordLowF
3
dbp:marAvgRecordHighF
49
dbp:marAvgRecordLowF
-31
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54
dbp:marRecordLowF
-52
dbp:mayAvgRecordHighF
65
dbp:mayAvgRecordLowF
-1
dbp:mayRecordHighF
70
dbp:mayRecordLowF
-19
dbp:novAvgRecordHighF
51
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-26
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62
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-47
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65
dbp:octAvgRecordLowF
-6
dbp:octRecordHighF
75
dbp:octRecordLowF
-45
gold:hypernym
dbr:Sinkhole
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