Frost Dates for Brno, Jihomoravsky kraj, Czech Republic

Coordinates: 49.200, 16.633

Growing Season

The last spring air frost in Brno, Jihomoravsky kraj, Czech Republic typically occurs around May 3, and the first autumn air frost around Sep 20. This gives a frost-free growing season of approximately 140 days.

USDA Hardiness Zone

This location falls in USDA Hardiness Zone 7b, where the average annual extreme minimum temperature is -15 to -12.2°C (5 to 10°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 -3°C (27°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 3 (last spring) to Sep 20 (first autumn). Light ground frost (-1°C / 30°F): Apr 20 (last spring) to Oct 6 (first autumn). Hard ground frost (-2°C / 28°F): Mar 25 (last spring) to Nov 2 (first autumn).

We predict your growing zone to be approximately ...

USDA Growing Zone
USDA Growing Zone - 7b

... 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 3 to Sep 20, which provides approximately 139 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 20 to Oct 6, which provides a total of 169 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 20May 3
Light Ground FrostOct 6Apr 20
Hard Ground FrostNov 2Mar 25

Frost Dates for Brno, Jihomoravsky kraj, Czech Republic | FrostDates.com