Dumbarton and Glen Allen have remarkably similar climates.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Dumbarton | Metric | Glen Allen |
|---|---|---|
| 209 days | Sunny daysclear or partly cloudy skies | 208 days |
| 44 in | Precipitationper year | 43 in |
| 118 days | Wet daysrain or snow per year | 118 days |
| 11 in | Snowfallper year | 13 in |
| 37 days | Hot daysabove 90 °F | 37 days |
| 85 days | Freezing nightsat or below 32 °F | 87 days |
| 69% | Humidityaverage relative | 69% |
| 58 °F | Average temperatureyear round | 58 °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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dumbarton high | 47 | 51 | 59 | 70 | 77 | 84 | 88 | 87 | 80 | 70 | 60 | 51 |
| Glen Allen high | 47 | 51 | 59 | 70 | 77 | 84 | 88 | 86 | 80 | 70 | 59 | 51 |
| Dumbarton low | 28 | 29 | 36 | 46 | 55 | 64 | 68 | 66 | 60 | 48 | 38 | 31 |
| Glen Allen low | 28 | 29 | 36 | 45 | 55 | 63 | 68 | 66 | 60 | 48 | 38 | 31 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dumbarton | 3.4 | 3.0 | 4.0 | 3.2 | 3.2 | 3.8 | 4.2 | 4.3 | 4.4 | 3.7 | 3.2 | 3.5 |
| Glen Allen | 3.2 | 2.9 | 3.9 | 3.3 | 3.3 | 3.8 | 4.1 | 4.2 | 4.3 | 3.7 | 3.1 | 3.5 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dumbarton | 17 | 15 | 17 | 17 | 16 | 16 | 18 | 19 | 18 | 20 | 18 | 17 |
| Glen Allen | 17 | 15 | 17 | 17 | 16 | 17 | 17 | 19 | 17 | 20 | 19 | 17 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Dumbarton vs another city
- Dumbarton vs Laurel, VA
- Dumbarton vs Lakeside, VA
- Dumbarton vs Chamberlayne, VA
- Dumbarton vs Tuckahoe, VA
- Dumbarton vs Innsbrook, VA
- Dumbarton vs New York, NY
- Dumbarton vs Los Angeles, CA
- Dumbarton vs Chicago, IL
- Dumbarton vs Houston, TX
- Dumbarton vs Phoenix, AZ
- Dumbarton vs Philadelphia, PA
Glen Allen vs another city
- Glen Allen vs Laurel, VA
- Glen Allen vs Lakeside, VA
- Glen Allen vs Chamberlayne, VA
- Glen Allen vs Innsbrook, VA
- Glen Allen vs Ashland, VA
- Glen Allen vs New York, NY
- Glen Allen vs Los Angeles, CA
- Glen Allen vs Chicago, IL
- Glen Allen vs Houston, TX
- Glen Allen vs Phoenix, AZ
- Glen Allen 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).