WW2-Era Weather Data - 21 Apr 1942
| 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 | 0.000 | 0.000 | 0.00 | 0.0 | 6 | 42 | 13 | 55 | |||
| British Guiana | Georgetown | 6.5 | -58.217 | 8.839 | 29 | 0.000 | 0.000 | 0.00 | 0.0 | 0.000 | 0 | 0 | 21 | 69 | 32 | 90 |
| Panama Canal Zone | Balboa/Albrook | 8.967 | -79.5 | 2.743 | 9 | 0.000 | 0.000 | 0.00 | 0.0 | 0.000 | 0 | 0 | 24 | 76 | 33 | 91 |
| Panama Canal Zone | Rio Hato | 8.367 | -80 | 6.706 | 22 | 0.000 | 0.000 | 0.00 | 0.0 | 0.000 | 0 | 0 | 26 | 78 | 34 | 93 |
| Panama Canal Zone | David | 8.383 | -82.333 | 7.010 | 23 | 0.508 | 0.020 | 0.00 | 0.0 | 0.000 | 0 | 0 | 22 | 72 | 33 | 92 |
| Costa Rica | San José | 9.9 | -84 | 345.034 | 1132 | 0.000 | 0.000 | 0.00 | 0.0 | 0.000 | 0 | 0 | -18 | 0 | -18 | 0 |
| British Windward Islands | Saint Lucia | 13.733 | -60.85 | 2.438 | 8 | 0.000 | 0.000 | 0.00 | 0.0 | 0.000 | 0 | 0 | 26 | 78 | 31 | 88 |
| British Leeward Islands | Coolidge Field | 17.117 | -61.733 | 3.048 | 10 | 0.000 | 0.000 | 0.00 | 0.0 | 0.000 | 0 | 0 | 25 | 77 | 29 | 84 |
| Trinidad | Waller | 10.617 | -61.017 | 12.497 | 41 | 0.000 | 0.000 | 0.00 | 0.0 | 0.000 | 0 | 0 | 22 | 72 | 31 | 87 |
| Jamaica | Kingston | 17.9 | -77.183 | 1.524 | 5 | 0.000 | 0.000 | 0.00 | 0.0 | 0.000 | 0 | 0 | 21 | 70 | 34 | 94 |
| Guatemala | Guatemala City | 14.583 | -90.55 | 452.933 | 1486 | 0.000 | 0.000 | 0.00 | 0.0 | 0.000 | 0 | 0 | 16 | 60 | 27 | 81 |
| Bermuda | Bermuda | 32.367 | -64.667 | 1.829 | 6 | 0.000 | 0.000 | 0.00 | 0.0 | 0.000 | 0 | 0 | 16 | 60 | 22 | 71 |
| Iceland | Reykjavik | 64.133 | -21.917 | 2.438 | 8 | 0.000 | 0.000 | 2.54 | 0.1 | 0.000 | 0 | 0 | -6 | 22 | -1 | 31 |
| Denmark | Narsarssuak | 61.183 | -45.367 | 3.353 | 11 | 0.000 | 0.000 | 0.00 | 0.0 | 0.000 | 0 | 0 | -4 | 25 | 6 | 43 |
| Denmark | Sondrestrom | 67.017 | -50.7 | 15.240 | 50 | 0.000 | 0.000 | 5.08 | 0.2 | 0.000 | 0 | 0 | -11 | 12 | 3 | 37 |
| Gilbert and Ellice Islands | Christmas Island | 1.983 | -157.417 | 0.610 | 2 | 0.254 | 0.010 | 0.00 | 0.0 | 0.000 | 0 | 0 | 25 | 77 | 32 | 90 |
| Hawaii | Molokai | 21.15 | -157.033 | 12.802 | 42 | 0.000 | 0.000 | 0.00 | 0.0 | 0.000 | 0 | 0 | 18 | 65 | 25 | 77 |
| Hawaii | Hickam | 21.333 | -157.9 | 0.914 | 3 | 0.000 | 0.000 | 0.00 | 0.0 | 0.000 | 0 | 0 | 21 | 69 | 27 | 81 |
| Hawaii | Wheeler | 21.483 | -158.05 | 82.601 | 271 | 0.000 | 0.000 | 0.00 | 0.0 | 0.000 | 0 | 0 | 17 | 63 | 24 | 75 |
| Ecuador | Salinas | -2.2 | -81.083 | 2.438 | 8 | 0.000 | 0.000 | 0.00 | 0.0 | 0.000 | 0 | 0 | 24 | 76 | 28 | 83 |
| Fiji | Nandi | -17.75 | 177.367 | 3.048 | 10 | 15.494 | 0.610 | 0.00 | 0.0 | 0.000 | 0 | 0 | 22 | 71 | 31 | 88 |
Sources:
Phillyweather
NOAA National Center for Environmental Information