| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| In Montreal in 1998 this was 2 inches thick on some branches, damaging 94% of trees in the Ville Emard district | ice | $400 | J | EXTREME WEATHER | 2012-05-01 | #6367 | |
| Frost a cake, or clinch a victory | ice | $800 | DJ | WEATHER VERBS | 2000-09-15 | #3685 | |
| In polar regions, warm air meeting cold can cause "diamond dust", particles of this in the air | ice | $600 | DJ | WEATHER | 1989-01-10 | #1007 | |
| Halos around the Sun or Moon are caused by refraction of light by these crystals | ice | $200 | J | WEATHER | 1988-07-22 | #915 |