| Stations: |
Precipitation |
| Adak (5 m, Alaska) |
2.0 mm |
| Akron- Canton Airport (377 m, Ohio) |
0.5 mm |
| Bella Bella (43 m, British Columbia) |
0.2 mm |
| Bonilla Island (17 m, British Columbia) |
0.4 mm |
| Buffalo Niagara Intl. Airport (219 m, New York) |
1.0 mm |
| Cape Stallworthy (72 m, Alberta) |
4.0 mm |
| Chibougameau-Chapais Airport (10 m, Quebec) |
2.0 mm |
| Churchill Falls (440 m, California) |
0.2 mm |
| Cleveland Hopkins Intl. Airport (245 m, Ohio) |
1.0 mm |
| Columbia Regional Airport (274 m, Missouri) |
7.0 mm |
| Craig (1915 m, Colorado) |
3.0 mm |
| Dayton Intl. Airport (306 m, Ohio) |
1.0 mm |
| Delhi (232 m, Ontario) |
0.2 mm |
| Eareckson Air Station (31 m, Alaska) |
1.0 mm |
| Erie Intl. Airport (225 m, Pennsylvania) |
2.0 mm |
| Fort Wayne Intl. Airport (252 m, Indiana) |
15.0 mm |
| Greater Sudbury (190 m, Ontario) |
7.0 mm |
| Green Bay (209 m, Wisconsin) |
1.0 mm |
| Harrow CDA (AUT) (192 m, Ontario) |
0.5 mm |
| Herbert Isl. (17 m, British Columbia) |
0.2 mm |
| Indianapolis Intl. Airport (246 m, Indiana) |
4.0 mm |
| Kodiak Airport (34 m, Alaska) |
1.0 mm |
| Lac Benoit (549 m, Quebec) |
6.0 mm |
| Lake Superior Provincial Park (401 m, California) |
0.4 mm |
| St. Louis Lambert Intl. Airport (172 m, Missouri) |
11.0 mm |
| Milwaukee Mitchell Intl. Airport (211 m, Wisconsin) |
0.5 mm |
| Minneapolis (255 m, Minnesota) |
0.5 mm |
| Mistook (113 m, Quebec) |
0.5 mm |
| Muskegon (193 m, Michigan) |
1.0 mm |
| Onatchiway (304 m, Quebec) |
0.2 mm |
| Pangnirtung (23 m, Nunavut) |
0.5 mm |
| Parent (445 m, Quebec) |
1.0 mm |
| Point Pelee CS (177 m, Ontario) |
0.8 mm |
| Port Hardy Airport (22 m, British Columbia) |
2.0 mm |
| Qikiqtarjuaq (6 m, Nunavut) |
5.0 mm |
| Riviere Aux Feuille (171 m, Quebec) |
0.5 mm |
| Roscommon (351 m, Michigan) |
2.0 mm |
| Rouyn-Noranda (318 m, Quebec) |
0.6 mm |
| Sandspit (6 m, British Columbia) |
0.5 mm |
| Sandspit Airport (6 m, British Columbia) |
0.3 mm |
| Sartine Isl (112 m, British Columbia) |
2.0 mm |
| Sault Ste Marie (192 m, Ontario) |
6.0 mm |
| Solander Island (99 m, British Columbia) |
3.0 mm |
| Sudbury Airport (348 m, Ontario) |
7.0 mm |
| Toledo Express Airport (211 m, Ohio) |
9.0 mm |
| Trenton Airport (85 m, Ontario) |
1.0 mm |
| Welland Pelham (178 m, Ontario) |
0.8 mm |
North - South