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| Back to Connecticut, United States. Do you have any pictures of this city? ![]() Planning a vacation? Current weather forecast for Derby, CT Elevation: 200 feet County: New Haven Land area: 5.0 square miles Median resident age: 37.7 years New: Derby, CT residents, houses, and apartments details Races in Derby:
New: Political contributions by individuals in Derby, CT Ancestries: Italian (33.4%), Polish (18.0%), Irish (16.9%), German (7.7%), English (7.4%), French (3.5%). |
![]() For population 25 years and over in Derby
For population 15 years and over in Derby city
12.2% Foreign born (7.1% Europe, 2.6% Latin America, 1.8% Asia). |
![]() Nearest city with pop. 50,000+: Milford, CT (7.4 miles, pop. 50,594). Nearest city with pop. 200,000+: New York, NY (71.5 miles, pop. 8,008,278). Nearest cities: Ansonia, CT (1.5 miles), Shelton, CT (3.3 miles), Orange, CT (5.0 miles), Milford, CT (7.4 miles), West Haven, CT (8.9 miles), Stratford, CT (9.1 miles), Woodmont, CT (9.1 miles), Trumbull, CT (9.9 miles). Single-family new house construction building permits:
Industries providing employment: Educational,health and social services (20.2%), Manufacturing (18.8%), Retail trade (12.3%). |
Based on data reported by over 4,000 weather stations
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Average temp. (°F) | 29.6 | 31.7 | 39.4 | 49.0 | 59.1 | 68.1 | 73.8 | 72.7 | 65.3 | 54.3 | 44.8 | 34.7 |
| High temperature (°F) | 37.1 | 39.2 | 47.6 | 58.0 | 68.6 | 77.3 | 82.6 | 81.1 | 73.9 | 63.3 | 52.7 | 42.1 |
| Low temperature (°F) | 22.2 | 24.0 | 31.1 | 39.8 | 49.7 | 58.8 | 64.9 | 64.1 | 56.6 | 45.3 | 36.7 | 27.3 |
| Precipitation (in) | 4.5 | 3.2 | 4.3 | 4.4 | 4.4 | 3.9 | 4.0 | 4.2 | 4.1 | 4.4 | 4.4 | 4.0 |
Based on data reported by main weather stations
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Days with precip. | 11 | 10 | 11 | 11 | 11 | 10 | 8 | 9 | 9 | 7 | 10 | 11 |
| Wind speed (mph) | 12.5 | 12.9 | 13.0 | 12.4 | 11.1 | 9.9 | 9.4 | 9.5 | 10.5 | 11.3 | 12.0 | 12.1 |
| Morning humidity (%) | 70 | 70 | 70 | 69 | 75 | 78 | 78 | 79 | 82 | 80 | 77 | 74 |
| Afternoon humidity (%) | 59 | 57 | 55 | 53 | 59 | 61 | 60 | 61 | 61 | 59 | 60 | 60 |
| Sunshine (%) | 53 | 56 | 57 | 56 | 58 | 61 | 63 | 63 | 60 | 58 | 47 | 48 |
| Days clear of clouds | 8 | 8 | 8 | 7 | 7 | 8 | 7 | 9 | 10 | 11 | 8 | 8 |
| Partly cloudy days | 8 | 7 | 9 | 9 | 10 | 10 | 12 | 11 | 9 | 8 | 8 | 8 |
| Cloudy days | 15 | 13 | 14 | 14 | 14 | 12 | 12 | 12 | 12 | 12 | 14 | 15 |
| Snowfall (in) | 7.6 | 7.8 | 4.9 | 0.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.6 | 4.6 |
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