Unlock more jurisdiction sub-pages
Subscribe for full sub-page depth, saves, alerts, and exports.
Weather & Climate
Derby, Connecticut, United States
Overview
Available climate summaries for Derby. Origins and reference periods are unverified; stored values may include AI estimates. Treat these as estimates until independently verified.
Key Metrics
Annual Avg
9.9°C
Summer Avg
21.7°C
Winter Avg
-2°C
Record High
39.2°C
Record Low
-26.9°C
Annual Precipitation
1207.6 mm
Avg Humidity
80%
Summer Humidity
75%
Winter Humidity
87%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 18.7° | -3.5° | -26.9° | 76 | 88% | 57 | 36.6 |
| Feb | 19.6° | -2.5° | -26.9° | 80.6 | 87% | 75 | 35.2 |
| Mar | 23.2° | 1.7° | -23.2° | 97 | 83% | 115 | 33.9 |
| Apr | 32.7° | 8.2° | -7.1° | 104.7 | 78% | 143 | 31.6 |
| May | 30.9° | 14.3° | -0.1° | 95.2 | 78% | 167 | 22.1 |
| Jun | 34.8° | 19.5° | 3.8° | 117.6 | 78% | 177 | 17.8 |
| Jul | 38.4° | 23.1° | 9.3° | 101.4 | 74% | 187 | 15.1 |
| Aug | 39.2° | 22.5° | 9.9° | 108.5 | 73% | 164 | 29.8 |
| Sep | 35.2° | 18.7° | 3.1° | 105.9 | 74% | 129 | 23.9 |
| Oct | 31.1° | 11.8° | -6.1° | 120.9 | 78% | 89 | 33.7 |
| Nov | 23.9° | 5.4° | -14.2° | 88.5 | 81% | 61 | 27.8 |
| Dec | 19.8° | 0° | -17.9° | 111.3 | 87% | 46 | 33.1 |
Data sources
Estimates and unverified origins
Oyster List climate data - Climate origins are unverified. Available methods include historical APIs and AI estimates; stored rows do not identify the original dataset, reference period, or model for each value. Treat these summaries as estimates until independently verified. Record updated 2026-03-22.
Subscribe to unlock more jurisdiction sub-pages this month.
You can keep discovering Oyster publicly, but full multi-jurisdiction depth, tracking, alerts, and exports are part of paid access.