WW2-Era Weather Data - 18 May 1941
| Country/Possession | Station | Latitude | Longitude | Elevation (m) | Elevation (ft) | Precipitation (mm) | Precipitation (in) | Snowfall (mm) | Snowfall (in) | Peak Gust Speed (km/hr) | Peak Gust Speed (knots) | Peak Gust Direction (degrees) | Minimum Temperature (C) | Minimum Temperature (F) | Maximum Temperature (C) | Maximum Temperature (F) |
| United States | Philadelphia | 39.953 | -75.164 | 12.000 | 39 | 3.048 | 0.120 | 0.00 | 0.0 | 9 | 49 | 23 | 73 | |||
| Panama Canal Zone | Balboa/Albrook | 8.967 | -79.5 | 2.743 | 9 | 24.384 | 0.960 | 0.00 | 0.0 | 0.000 | 0 | 0 | 26 | 78 | 34 | 93 |
| Hawaii | Molokai | 21.15 | -157.033 | 12.802 | 42 | 0.000 | 0.000 | 0.00 | 0.0 | 0.000 | 0 | 0 | 19 | 67 | 28 | 82 |
| Hawaii | Hickam | 21.333 | -157.9 | 0.914 | 3 | 2.032 | 0.080 | 0.00 | 0.0 | 0.000 | 0 | 0 | 22 | 71 | 28 | 82 |
| Hawaii | Wheeler | 21.483 | -158.05 | 82.601 | 271 | 2.286 | 0.090 | 0.00 | 0.0 | 0.000 | 0 | 0 | 19 | 66 | 25 | 77 |
Sources:
Phillyweather
NOAA National Center for Environmental Information