90 North Pole
82 Alert
65 Fairbanks,Nome,Dawson
61 Anchorage,Yellowknife,Whitehorse
58 Juneau,Churchill
54 Edmonton,Prince Rupert,Moscow
51 Calgary,Saskatoon,London,Berlin,Warsaw
50 Lethbridge,Brandon,Winnipeg,Moose Jaw,Regina
49 Bellingham,Vancouver,Paris
48 Minot,Seattle,Spokane,Victoria,St. John's,Thunder Bay
47 Duluth,Great Falls,Bismarck,Fargo,Tacoma,Superior,Quebec City
46.5 Helena,Yakima,Sault Ste Marie,Sudbury,Trois-Rivieres,North Bay
46 Butte,Walla Walla,Moncton,Sydney,Charlottetown,Fredericton,Billings
45.5 Portland,St. Cloud,Laval,Montreal,Ottawa,Hull,La Salle,Sherbrooke
45 Bangor,Minneapolis,St. Paul,Salem,Eau Claire,Sheridan,Saint John
44.5 Augusta,Pierre,Burlington,Green Bay,Dartmouth,Halifax,Peterborough
44 Rochester,Eugene,Rapid City,Montpelier,Belleville,Oshawa,Kingston
43.6 Boise,Bay City,Portland,Sioux Falls,Sheboygan,Toronto,Mississauga
43.3 Saginaw,Concord,Rochester,Hamilton,Burlington,Guelph,Kitchener
43 Portsmouth,Niag. Falls,Syracuse,Utica,Madison,Brantford,St. Catharines
42.9 Pocatello,Grd. Rapids,Flint,Manchester,Buffalo,Milwaukee,London
42.7 Lawrence,Lowell,Lansing,Albany,Schenectady,Troy,Brattleboro,Racine
42.5 Dubuque,Sioux City,Waterloo,Cambridge,Pittsfield,Somerville,Kenosha
42.3 Rockford,Boston,Ann Arbor,Battle Creek,Detroit,Kalamazoo,Windsor
42 Brockton,Holyoke,Springfield,Worcester,Jackson,Binghamton,Erie
41.8 Hartford,Chicago,South Bend,Cedar Rapids,Fall River,Providence,Rome
41.6 New Britain,Waterbury,Gary,Des Moines,Iowa City,New Bedford,Toledo
41.4 Meriden,New Haven,Moline,Davenport,Cleveland,Lorain,Scranton
41.1 Bridgeport,Omaha,Akron,Youngstown,Wilkes-Barre,Ogden,Cheyenne  
41 Eureka,Stamford,Fort Wayne,Lincoln,Paterson,White Plains,Yonkers
40.7 Jersey City,Newark,Centr. Islip,New York,Canton,Lima,Salt Lake City
40.6 Peoria,Elizabeth,Allentown,Altoona,Bethlehem,State College
40.4 Bloomington,Lafayette,Steubenville,Johnstown,Pittsburgh,Reading
40.2 Champaign,Urbana,Muncie,Trenton,Harrisburg,Provo,Wheeling
40 Springfield,Camden,Columbus,Zanesville,Lancaster,Philadelphia,York
39.8 Denver,Decatur,Springfield,Indianapolis,St. Joseph,Dayton,Peking
39.4 Wilmington,Terre Haute,Baltimore,Reno,Atlantic City,Hamilton
39 Gr. Junction,Kansas City,Topeka,Columbia,Carson City,Cincinnati
38.6 Sacramento,Salina,Col. Springs,Washington,Ashland,St. Louis
38.2 Pueblo,Evansville,Lexington,Louisville,Charleston,Huntington
37.8 Berkeley,Oakland,San Francisco,Stockton,Dodge City,Wichita,Athens
37.2 San Jose,Bowling Green,Paducah,Joplin,Springfield,Richmond,Roanoke
36.5 Fresno,Santa Cruz,Las Vegas,Enid,Norfolk,Nashville,Portsmouth
36 Durham,Greensboro,Raleigh,Winston-Salem,Tulsa,Knoxville,Tokyo
35.5 Ft. Smith,Bakersfield,Gallup,Santa Fe,Asheville,Charlotte,Okla City
35 Flagstaff,Albuquerque,Spartanburg,Chattanooga,Memphis,Amarillo
34.5 Huntsville,Little Rock,Santa Barbara,Wilmington,Greenville
34 Gadsden,Los Angeles,Pasadena,San Bernardino,Columbia,Wich. Falls
33.5 Birmingham,Phoenix,Atlanta,Augusta,Long Beach,Lubbock,Texarkana
33 Yuma,San Diego,Macon,Charleston,Dallas,Fort Worth
32.5 Montgomery,Shreveport,Columbus,Jackson,Abilene,Marshall
32 Tucson,Savannah,El Paso,Jerusalem
31.5 Natchez,San Angelo,Waco 
30.5 Mobile,Pensacola,Tallahassee,Baton Rouge,Biloxi,Gulfport
30 Jacksonville,New Orleans,Austin,Beaumont,Houston,Port Arthur
29 Daytona Beach,Gainesville,Orlando,Galveston,San Antonio,New Delhi
28 St. Petersburg,Tampa,Cor. Christi,Laredo
27 Sarasota,W. Palm Beach
25 Key West,Miami,Brownsville
20 Honolulu,Hilo,Lihue,Mexico City,San Juan
10
0 Equator
-15
-25 Rio de Janeiro,Johannesburg
-35 Sydney
-50
-75
-90 South Pole