NOAA's National Centers for Environmental Information
County Mapping
County Average Temperature
March - May 1909
0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F
Connecticut (Hover over a County)
TempAverage Temperature:
Rank:
Anomaly:
Mean:
County | Value | Rank 131 Years | Anomaly | 1901- |
|---|---|---|---|---|
| Fairfield County | 45.6°F | 25 | -1.6°F | 47.2°F |
| Hartford County | 45.1°F | 24 | -1.6°F | 46.7°F |
| Litchfield County | 42.5°F | 19 | -1.9°F | 44.4°F |
| Middlesex County | 45.0°F | 20 | -1.6°F | 46.6°F |
| New Haven County | 45.0°F | 20 | -1.7°F | 46.7°F |
| New London County | 44.6°F | 17 | -1.6°F | 46.2°F |
| Tolland County | 44.4°F | 27 | -1.3°F | 45.7°F |
| Windham County | 44.2°F | 21 | -1.5°F | 45.7°F |
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: County Mapping, published July 2025, retrieved on July 19, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping
