| Stations: |
Precipitation |
| Helena Regional Airport (1188 m, Montana) |
0.3 mm |
| Kahului Airport (20 m, Hawaii) |
0.3 mm |
| Wichita Falls Regional Airport (314 m, Texas) |
0.3 mm |
| Blosser Airport (452 m, Kansas) |
0.3 mm |
| Havre (792 m, Montana) |
0.3 mm |
| Lehigh Valley Intl. Airport (117 m, Pennsylvania) |
0.5 mm |
| Caribou Airport (191 m, Maine) |
0.6 mm |
| Newark Intl. Airport (9 m, New Jersey) |
0.6 mm |
| Richmond Intl. Airport (54 m, Virginia) |
0.8 mm |
| Gerald R. Ford Intl. Airport (245 m, Michigan) |
0.8 mm |
| Wilkes-Barre/Scranton Intl. Airport (289 m, Pennsylvania) |
0.8 mm |
| Baltimore Airport (47 m, Maryland) |
0.8 mm |
| Mount Washington Airport (1910 m, New Hampshire) |
0.8 mm |
| Dallas Fort Worth Intl. Airport (182 m, Texas) |
1.0 mm |
| Fort Smith Regional Airport (141 m, Arkansas) |
1.0 mm |
| Middleton Island Airport (14 m, Alaska) |
1.0 mm |
| Grand Junction Regional Airport (1472 m, Colorado) |
1.0 mm |
| Goodland Airport (1124 m, Kansas) |
1.1 mm |
| San Antonio Intl. Airport (242 m, Texas) |
1.1 mm |
| Nashville Intl. Airport (180 m, Tennessee) |
1.3 mm |
| Spokane Airport (721 m, Washington) |
1.3 mm |
| Western Nebraska Regional Airport (1206 m, Nebraska) |
1.5 mm |
| Great Falls (1131 m, Montana) |
1.8 mm |
| LaGuardia Airport (9 m, New York) |
1.9 mm |
| Atlanta Airport (315 m, Georgia) |
2.0 mm |
| Salt Lake City Intl. Airport (1288 m, Utah) |
2.0 mm |
| Columbia Regional Airport (274 m, Missouri) |
2.0 mm |
| Wallops Flight Facility Airport (12 m, Virginia) |
2.0 mm |
| Dayton Intl. Airport (306 m, Ohio) |
2.0 mm |
| Pocatello Regional Airport (1365 m, Idaho) |
2.0 mm |
| Astoria Regional Airport (7 m, Oregon) |
2.1 mm |
| Wichita Dwight D. Eisenhower National Airport (409 m, Kansas) |
2.3 mm |
| Blue Grass Airport (301 m, Kentucky) |
2.3 mm |
| Riverton Airport (1684 m, Wyoming) |
2.4 mm |
| Indianapolis Intl. Airport (246 m, Indiana) |
2.5 mm |
| Philadelphia Intl. Airport (9 m, Pennsylvania) |
3.3 mm |
| Memphis Airport (87 m, Tennessee) |
3.3 mm |
| Rhode (19 m, Rhode Island) |
3.6 mm |
| Ralph Wien Memorial Airport (5 m, Alaska) |
3.8 mm |
| Logan Intl. Airport (9 m, Massachusetts) |
4.0 mm |
| Akron- Canton Airport (377 m, Ohio) |
4.0 mm |
| Casper (1612 m, Wyoming) |
4.1 mm |
| John F. Kennedy Intl. Airport (7 m, New York) |
4.5 mm |
| Bethel Airport (44 m, Alaska) |
4.6 mm |
| Port Heiden Airport (29 m, Alaska) |
4.8 mm |
| Missoula Montana Airport (972 m, Montana) |
5.0 mm |
| Williamsport Regional Airport (160 m, Pennsylvania) |
5.0 mm |
| Norfolk Intl. Airport (9 m, Virginia) |
5.0 mm |
| Dillingham Airport (29 m, Alaska) |
5.4 mm |
| Craig (1915 m, Colorado) |
5.5 mm |
| Pittsburgh Intl. Airport (373 m, Pennsylvania) |
5.8 mm |
| Bismarck Airport (505 m, North Dakota) |
6.1 mm |
| Youngstown (361 m, Ohio) |
6.3 mm |
| Covington Airport (267 m, Kentucky) |
6.3 mm |
| Barkley Regional Airport (126 m, Kentucky) |
6.3 mm |
| Lihue Airport (32 m, Hawaii) |
6.5 mm |
| Greater Binghamton Airport (497 m, New York) |
6.8 mm |
| Erie Intl. Airport (225 m, Pennsylvania) |
6.9 mm |
| Central Nebraska Regional Airport (566 m, Nebraska) |
7.0 mm |
| Billings Logan Intl. Airport (1088 m, Montana) |
7.0 mm |
| Fort Wayne Intl. Airport (252 m, Indiana) |
7.0 mm |
| Richard B. Russell Airport (196 m, Georgia) |
7.0 mm |
| Burlington Intl. Airport (104 m, Vermont) |
7.0 mm |
| Falls Intl. Airport (362 m, Minnesota) |
7.1 mm |
| Albany Airport (89 m, New York) |
8.0 mm |
| Atlantic City Airport (20 m, New Jersey) |
8.0 mm |
| South Bend Intl. Airport (236 m, Indiana) |
8.0 mm |
| Cleveland Hopkins Intl. Airport (245 m, Ohio) |
8.0 mm |
| Toledo Express Airport (211 m, Ohio) |
8.0 mm |
| Syracuse Hancock Intl. Airport (124 m, New York) |
8.8 mm |
| Elkins/Randolph Field AP (609 m, West-Virginia) |
9.0 mm |
| Huntsville Intl. Airport (196 m, Alabama) |
9.0 mm |
| Hilo Intl. Airport (10 m, Hawaii) |
9.0 mm |
| Muskegon (193 m, Michigan) |
9.0 mm |
| O’Hare Intl. Airport (205 m, Illinois) |
9.3 mm |
| Sikorsky Memorial Airport (5 m, Connecticut) |
9.5 mm |
| Evansville Airport (118 m, Indiana) |
10.0 mm |
| Bishop Intl. Airport (233 m, Michigan) |
10.3 mm |
| Miller Field Airport (792 m, Nebraska) |
10.3 mm |
| Denver Intl. Airport (1656 m, Colorado) |
10.3 mm |
| Raleigh (766 m, West-Virginia) |
10.5 mm |
| Buffalo Niagara Intl. Airport (219 m, New York) |
10.6 mm |
| Greater Rochester Intl. Airport (169 m, New York) |
10.8 mm |
| Nome Airport (6 m, Alaska) |
11.6 mm |
| North Platte Regional Airport (849 m, Nebraska) |
11.8 mm |
| Louisville Intl. Airport (149 m, Kentucky) |
12.0 mm |
| Milwaukee Mitchell Intl. Airport (211 m, Wisconsin) |
12.3 mm |
| Saint-Pierre (24 m, Saint Pierre and Miquelon) |
12.4 mm |
| Capital Region Intl. Airport (266 m, Michigan) |
13.3 mm |
| Detroit Metropolitan Airport (202 m, Michigan) |
13.8 mm |
| Concord Airport (105 m, New Hampshire) |
14.0 mm |
| Rockford Airport (226 m, Illinois) |
15.0 mm |
| Duluth Airport (432 m, Minnesota) |
15.3 mm |
| Omaha/Eppley Field AP (299 m, Nebraska) |
15.8 mm |
| Sheridan Airport (1209 m, Wyoming) |
16.8 mm |
| Roscommon (351 m, Michigan) |
16.8 mm |
| Bradley Intl. Airport (55 m, Connecticut) |
18.0 mm |
| Des Moines Intl. Airport (294 m, Iowa) |
20.3 mm |
| Peoria Airport (202 m, Illinois) |
20.6 mm |
| Chattanooga Metropolitan Airport (210 m, Tennessee) |
21.0 mm |
| Hector Intl. Airport (274 m, North Dakota) |
22.3 mm |
| John Glenn Columbus Intl. Airport (258 m, Ohio) |
22.3 mm |
| Dane County Regional Airport (264 m, Wisconsin) |
23.3 mm |
| Waterloo Regional Airport (268 m, Iowa) |
24.3 mm |
| Rochester Intl. Airport (402 m, Minnesota) |
24.8 mm |
| Green Bay (209 m, Wisconsin) |
29.8 mm |
| Huron Airport (393 m, South Dakota) |
30.0 mm |
| Sioux Falls Regional Airport (435 m, South Dakota) |
32.8 mm |
| Rapid City Airport (965 m, South Dakota) |
33.3 mm |
| Aberdeen Airport (397 m, South Dakota) |
38.0 mm |
| Sioux Gateway Airport (336 m, Iowa) |
38.3 mm |
| Dubuque Regional Airport (329 m, Iowa) |
39.5 mm |
| Minneapolis (255 m, Minnesota) |
42.0 mm |
| Norfolk Regional Airport (473 m, Nebraska) |
44.0 mm |
| Quad Cities Intl. Airport (181 m, Illinois) |
44.3 mm |
| Kansas City Intl. Airport (313 m, Missouri) |
51.0 mm |
| Kodiak Airport (34 m, Alaska) |
129.6 mm |
North - South