| Answer | Crossword Clue |
|---|---|
| ISOGRAM | Weather-map line denoting equal temperatures. |
| ISOTHERM | Line on a weather map showing equal temperatures |
| isotherm | line on a weather map or chart connecting points having equal temperature |
| isohel | line on a weather map connecting points that receive equal amounts of sunshine |
| isohels | line on a weather map connecting points that receive equal amounts of sunshine |
| isotach | line on a weather map or chart connecting points where winds of equal speeds have been recorded |
