Vienna, MD Weather
Vienna, MD climate is warm during summer when temperatures tend to be in the 70's and very cold during winter when temperatures tend to be in the 30's.
The warmest month of the year is July with an average maximum temperature of 88.70 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 27.10 degrees Fahrenheit.
Temperature variations between night and day tend to be moderate during summer with a difference that can reach 21 degrees Fahrenheit, and fairly limited during winter with an average difference of 18 degrees Fahrenheit.
The annual average precipitation at Vienna is 43.00 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is August with an average rainfall of 4.37 Inches.
Weather Data
Current Conditions
|
Partly Cloudy, 74°F | Humidity: 71% | Dewpoint: 64°F |
| Wind Speed: CALM | Heat Index: 74°F | ||
| Barometer: 29.90 in. | Wind Chill: 74°F |
Weather Forecast
| Tonight: Partly cloudy. Lows in the lower 60s. West winds 5 to 10 mph...Becoming north after midnight. | |
| Lo: 61°F | ||
 | Hi: 75°F | Sunday: Cloudy. A slight chance of showers early in the morning... Then a chance of showers late in the morning. Showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 70s. Northeast winds around 5 mph...Becoming southeast in the afternoon. Chance of rain 60 percent. |
| Lo: 61°F | ||
 | Hi: 81°F | Monday: Partly sunny. Highs in the lower 80s. North winds 10 to 15 mph. |
| Lo: 61°F | ||
 | Hi: 81°F | Tuesday: Partly cloudy. Highs in the lower 80s. Lows in the lower 60s. |
| Lo: 61°F | ||
 | Hi: 85°F | Wednesday: Mostly clear. Highs in the mid 80s. Lows in the mid 60s. |
| Lo: 65°F | ||
| Hi: 85°F | Thursday: Mostly clear. Highs in the mid 80s. Lows in the mid 60s. |
| Lo: 65°F | ||
| Hi: 85°F | Friday: Mostly clear. Highs in the mid 80s. Lows in the mid 60s. |
| Lo: 65°F |
Moon, Sunrise and Sunset
 |
Moon Phase: Waxing Gibbous Moon | Civil Twilight: 5:12 AM EDT |
Sunrise: 5:43 AM EDT |
| Sunset: 8:30 PM EDT |
Civil Twilight: 9:02 PM EDT |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 45.1 | 47.5 | 56.8 | 66.9 | 75.9 | 84.1 | 88.7 | 86.6 | 80.8 | 70.1 | 59.5 | 49.8 | 67.7 |
| Mean °F | 36.1 | 38.2 | 46.4 | 55.6 | 64.9 | 73.3 | 78.1 | 76.1 | 69.9 | 58.8 | 49.3 | 40.5 | 57.3 |
| Min °F | 27.1 | 28.8 | 36.0 | 44.3 | 53.8 | 62.5 | 67.4 | 65.6 | 58.9 | 47.4 | 39.0 | 31.1 | 46.8 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 3.74 | 3.33 | 4.07 | 3.33 | 3.52 | 3.72 | 3.86 | 4.37 | 3.52 | 3.14 | 3.12 | 3.28 | 43.00 |
