Frost dates in Danbury, CT
The average last spring frost in Danbury is around May 1 and the first fall frost is around October 15. That gives Danbury an average growing season of about 167 days.
Last spring frost
| Early (10% chance after) | April 18 |
|---|---|
| Average (50%) | May 1 |
| Late (90%) | May 18 |
First fall frost
| Early (10%) | October 4 |
|---|---|
| Average (50%) | October 15 |
| Late (90% chance before) | October 29 |