The year at a glance
Averages from 30 years of climate history, 1991-2020
| Derby | Metric | Long Hill |
|---|---|---|
| 204 days | Sunny daysclear or partly cloudy skies | 204 days |
| 48 in | Precipitationper year | 48 in |
| 125 days | Wet daysrain or snow per year | 125 days |
| 36 in | Snowfallper year | 37 in |
| 9 days | Hot daysabove 90 °F | 11 days |
| 130 days | Freezing nightsat or below 32 °F | 113 days |
| 71% | Humidityaverage relative | 72% |
| 50 °F | Average temperatureyear round | 52 °F |
Monthly temperatures
Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.
Daily highs
Daily lows
View monthly temperatures as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Derby high | 36 | 38 | 47 | 58 | 69 | 77 | 82 | 82 | 75 | 63 | 52 | 41 |
| Long Hill high | 37 | 39 | 47 | 59 | 69 | 78 | 83 | 82 | 75 | 64 | 52 | 42 |
| Derby low | 19 | 19 | 28 | 38 | 47 | 58 | 63 | 62 | 54 | 41 | 32 | 24 |
| Long Hill low | 21 | 22 | 30 | 40 | 49 | 60 | 65 | 64 | 56 | 45 | 35 | 27 |
Monthly precipitation
Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.
View monthly precipitation as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Derby | 3.8 | 3.4 | 4.5 | 4.1 | 3.6 | 3.9 | 3.4 | 4.1 | 4.0 | 4.5 | 3.7 | 4.7 |
| Long Hill | 3.8 | 3.4 | 4.5 | 4.1 | 3.6 | 3.9 | 3.4 | 4.1 | 4.0 | 4.5 | 3.7 | 4.7 |
Monthly sunny days
Days each month with clear or partly cloudy skies, so compare the same month between cities.
View monthly sunny days as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Derby | 18 | 16 | 17 | 16 | 15 | 15 | 19 | 19 | 18 | 19 | 17 | 17 |
| Long Hill | 18 | 16 | 17 | 16 | 15 | 15 | 19 | 19 | 18 | 19 | 17 | 17 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Derby vs another city
- Derby vs Ansonia, CT
- Derby vs Shelton, CT
- Derby vs Orange, CT
- Derby vs West Haven, CT
- Derby vs Milford, CT
- Derby vs Daniels Farm, CT
- Derby vs New York, NY
- Derby vs Los Angeles, CA
- Derby vs Chicago, IL
- Derby vs Houston, TX
- Derby vs Phoenix, AZ
- Derby vs Philadelphia, PA
Long Hill vs another city
- Long Hill vs Daniels Farm, CT
- Long Hill vs Trumbull Center, CT
- Long Hill vs Shelton, CT
- Long Hill vs Bridgeport, CT
- Long Hill vs Milford, CT
- Long Hill vs New York, NY
- Long Hill vs Los Angeles, CA
- Long Hill vs Chicago, IL
- Long Hill vs Houston, TX
- Long Hill vs Phoenix, AZ
- Long Hill vs Philadelphia, PA
About this data
Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.
Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).