| Stations: |
Precipitation |
| Bettles Airport (196 m, Alaska) |
0.3 mm |
| Helena Regional Airport (1188 m, Montana) |
0.3 mm |
| Sheridan Airport (1209 m, Wyoming) |
0.3 mm |
| Missoula Montana Airport (972 m, Montana) |
0.3 mm |
| Raleigh (766 m, West-Virginia) |
0.3 mm |
| Elkins/Randolph Field AP (609 m, West-Virginia) |
0.5 mm |
| Tri-State Airport (255 m, West-Virginia) |
0.5 mm |
| Baltimore Airport (47 m, Maryland) |
0.5 mm |
| Burlington Intl. Airport (104 m, Vermont) |
0.5 mm |
| Omaha/Eppley Field AP (299 m, Nebraska) |
0.8 mm |
| Des Moines Intl. Airport (294 m, Iowa) |
0.8 mm |
| Burns Airport (1271 m, Oregon) |
1.0 mm |
| Yeager Airport (299 m, West-Virginia) |
1.0 mm |
| Reno (1341 m, Nevada) |
1.0 mm |
| Juneau Intl. Airport (7 m, Alaska) |
1.0 mm |
| Buffalo Niagara Intl. Airport (219 m, New York) |
1.0 mm |
| Norfolk Intl. Airport (9 m, Virginia) |
2.0 mm |
| Williamsport Regional Airport (160 m, Pennsylvania) |
2.0 mm |
| San Francisco Intl. Airport (5 m, California) |
2.0 mm |
| Yakima Airport (325 m, Washington) |
2.0 mm |
| Lewiston Airport (438 m, Idaho) |
2.0 mm |
| Philadelphia Intl. Airport (9 m, Pennsylvania) |
3.0 mm |
| Lehigh Valley Intl. Airport (117 m, Pennsylvania) |
3.0 mm |
| Syracuse Hancock Intl. Airport (124 m, New York) |
4.0 mm |
| Red Bluff Airport (108 m, California) |
4.0 mm |
| Wallops Flight Facility Airport (12 m, Virginia) |
4.0 mm |
| Greater Binghamton Airport (497 m, New York) |
4.0 mm |
| Palm Beach Intl. Airport (6 m, Florida) |
5.0 mm |
| LaGuardia Airport (9 m, New York) |
5.0 mm |
| Newark Intl. Airport (9 m, New Jersey) |
5.0 mm |
| Medford Airport (397 m, Oregon) |
5.0 mm |
| Miami Intl. Airport (4 m, Florida) |
5.0 mm |
| Arcata (18 m, California) |
6.0 mm |
| Eastern Oregon Regional Airport (456 m, Oregon) |
6.0 mm |
| Portland Airport (12 m, Oregon) |
6.0 mm |
| John F. Kennedy Intl. Airport (7 m, New York) |
8.0 mm |
| Eugene Airport (114 m, Oregon) |
8.0 mm |
| Concord Airport (105 m, New Hampshire) |
8.0 mm |
| Wilkes-Barre/Scranton Intl. Airport (289 m, Pennsylvania) |
8.0 mm |
| Sikorsky Memorial Airport (5 m, Connecticut) |
9.0 mm |
| McNary Field Airport (61 m, Oregon) |
10.0 mm |
| Portland (19 m, Maine) |
10.0 mm |
| Atlantic City Airport (20 m, New Jersey) |
10.0 mm |
| Caribou Airport (191 m, Maine) |
11.0 mm |
| Key West Airport (5 m, Florida) |
12.0 mm |
| Albany Airport (89 m, New York) |
14.0 mm |
| Logan Intl. Airport (9 m, Massachusetts) |
16.0 mm |
| Rhode (19 m, Rhode Island) |
25.0 mm |
| Bradley Intl. Airport (55 m, Connecticut) |
88.0 mm |
North - South