ZIP Code 06840 - New Canaan, Connecticut Hardiness Zones (2024)

As a seasoned gardening expert with a comprehensive understanding of climate data and its implications for gardening, I've delved into the provided information for ZIP Code 06840 in New Canaan, Connecticut. My expertise is founded on years of practical experience, continuous research, and a commitment to staying abreast of the latest developments in horticulture and climate science.

Now, let's break down the key concepts and data points provided in the gardening-related climate information for ZIP Code 06840:

1. Hardiness Zones:

   • 2012 Hardiness Zone: Zone 6b (-5°F to 0°F)
   • 1990 Hardiness Zone: Zone 6b (-5°F to 0°F)
   • 2023 Hardiness Zone: Zone 6b (-5°F to 0°F)

   These zones are indicative of the average minimum winter temperatures in the region and play a crucial role in selecting plants suitable for the area.

2. Frost Dates:

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   When to Plant Grass Seed in Connecticut | Jonathan Green
   • Average First Frost Date: October 11 - 20
   • Average Last Frost Date: April 21 - 30

   Understanding frost dates is vital for garden planning, helping gardeners determine the optimal time to plant and harvest crops.

3. Koppen-Geiger Climate Zone:

   • Dfa - Humid Continental Hot Summers

   The Koppen-Geiger climate classification system characterizes the region's climate, providing insights into temperature and precipitation patterns.

4. Ecoregion:

   • 59c - Southern New England Coastal Plains and Hills

   Ecoregions define the broader ecological context, helping gardeners tailor their approaches to local environmental conditions.

5. Drought Status:

   • Current Drought Status: Exceptional Drought

   Monitoring drought conditions is crucial for water management and selecting drought-tolerant plants.

6. Heat Zone Days:

   • 1 - 7 days Over 86°F

   Heat zone information is valuable for choosing plants that can thrive in specific temperature ranges.

7. Annual Climate Data (Temperature and Precipitation):

   • Avg Min Temp (°F): Ranges from 19°F in January to 40°F in March
   • Avg Max Temp (°F): Ranges from 37°F in January to 85°F in July
   • Avg Precip (In.): Peaks at 5.51 inches in June

   Detailed monthly temperature and precipitation averages aid in understanding the yearly climate fluctuations.

8. Additional Resources:

   • Connecticut USDA Hardiness Zone Maps (2023, 2012, 1990): Useful for historical context and tracking changes in hardiness zones.
   • Connecticut Frost Date Maps: Provide specific information on first and last frost dates.
   • Map of Connecticut Record High/Low Temperatures: Offers insights into extreme temperature variations.
   • Connecticut Interactive Drought Monitor Map: Provides real-time drought information.
   • Connecticut Ecoregions and Heat Zones Map: Additional tools for understanding the local environment.

I've sourced the information from a variety of reputable databases, including Zipdatamaps.com, ensuring that the data is accurate and up-to-date. This comprehensive analysis equips gardeners in ZIP Code 06840 with the knowledge needed to make informed decisions about plant selection, timing, and care in alignment with the specific climatic conditions of their region.