Frost Dates for Rochester, New York, United States of America

Coordinates: 43.155, -77.616

Growing Season

The last spring air frost in Rochester, New York, United States of America typically occurs around May 4, and the first autumn air frost around Sep 26. This gives a frost-free growing season of approximately 145 days.

USDA Hardiness Zone

This location falls in USDA Hardiness Zone 6a, where the average annual extreme minimum temperature is -23.3 to -20.6°C (-10 to -5°F). This zone rating helps gardeners determine which perennial plants are likely to survive winter.

Temperature Overview

The coldest month is January, with an average low of -7°C (19°F). The warmest month is July, with an average high of 26°C (79°F).

Frost Risk Breakdown

Frost dates at three temperature thresholds: Air frost (0°C / 32°F): May 4 (last spring) to Sep 26 (first autumn). Light ground frost (-1°C / 30°F): Apr 24 (last spring) to Oct 5 (first autumn). Hard ground frost (-2°C / 28°F): Apr 10 (last spring) to Oct 19 (first autumn).

We predict your growing zone to be approximately ...

USDA Growing Zone
USDA Growing Zone - 6a

... and the frost data for your area is ...

Current Risk Level: Light Ground Frost possible

for today based on past data only.

We predict a frost free growing season at your location from May 4 to Sep 26, which provides approximately 144 frost free days.

For the less tender plants, or if you are planning to protect your plants with fleece etc, your growing season could stretch from Apr 24 to Oct 5, which provides a total of 164 days for growing.

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
  • Hard Ground Frost possible
  • Light Ground Frost possible
  • Air Frost possible
  • Safest (unlikely)
First and last frost dates by frost type
FirstLast
Air FrostSep 26May 4
Light Ground FrostOct 5Apr 24
Hard Ground FrostOct 19Apr 10

Frost Dates for Rochester, New York, United States of America | FrostDates.com