Washington frost dates: E
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| East Olympia | Apr 29 | Oct 14 | 168 d | 8a |
| East Wenatchee | Apr 4 | Oct 28 | 207 d | 7a |
| Easton | May 9 | Oct 6 | 150 d | 7a |
| Eastsound | Feb 26 | Nov 29 | 276 d | 9a |
| Eatonville | Apr 11 | Oct 30 | 202 d | 8b |
| Edmonds | Mar 9 | Nov 17 | 253 d | 9a |
| Edwall | Jun 6 | Sep 11 | 97 d | 6b |
| Elbe | Apr 24 | Oct 15 | 174 d | 8a |
| Electric City | Apr 22 | Oct 21 | 182 d | 7a |
| Elk | May 22 | Sep 14 | 115 d | 6b |
| Ellensburg | May 8 | Oct 2 | 147 d | 7a |
| Elma | May 1 | Oct 14 | 166 d | 8b |
| Elmer City | Apr 22 | Oct 21 | 182 d | 7b |
| Eltopia | Apr 30 | Oct 13 | 166 d | 7a |
| Endicott | May 13 | Sep 26 | 136 d | 7a |
| Entiat | Apr 5 | Oct 24 | 202 d | 7a |
| Enumclaw | Apr 7 | Oct 30 | 206 d | 8a |
| Ephrata | Apr 22 | Oct 17 | 178 d | 6b |
| Ethel | Apr 5 | Oct 25 | 203 d | 8a |
| Evans | May 2 | Oct 2 | 153 d | 6b |
| Everett | Mar 9 | Nov 17 | 253 d | 8b |
| Everson | Apr 18 | Oct 18 | 183 d | 8a |