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
|
Fair, 47°F | Humidity: 83% | Dewpoint: 42°F |
| Wind Speed: N 3.5 MPH (3 KT) | Heat Index: 47°F | ||
| Barometer: 30.29 in. | Wind Chill: 47°F |
Weather Forecast
 | Tonight: Partly cloudy early this evening...Then becoming mostly cloudy. A slight chance of rain after midnight. A chance of rain late. Lows in the upper 40s. Northeast winds 10 to 15 mph. Chance of rain 40 percent. | |
| Lo: 49°F | ||
 | Hi: 55°F | Monday: Rain. Highs in the mid 50s. Northeast winds 10 to 15 mph with gusts to 25 mph. Chance of rain 80 percent. |
| Lo: 49°F | ||
 | Hi: 55°F | Tuesday: Cloudy. A chance of light rain in the morning...Then patchy drizzle in the afternoon. Highs in the mid 50s. North winds 5 to 10 mph. Chance of rain 30 percent. |
| Lo: 45°F | ||
 | Hi: 59°F | Wednesday: Mostly cloudy. Highs in the upper 50s. Lows in the mid 40s. |
| Lo: 45°F | ||
 | Hi: 59°F | Thanksgiving day: Mostly cloudy with a 30 percent chance of showers. Highs in the upper 50s. |
| Lo: 41°F | ||
| Hi: 51°F | Friday: Partly sunny in the morning...Then mostly cloudy with a chance of showers in the afternoon. Breezy with highs in the lower 50s. Chance of rain 30 percent. |
| Lo: 35°F | ||
| Hi: 50°F | Saturday: Partly sunny and breezy. Highs around 50. |
| Lo: 31°F |
Moon, Sunrise and Sunset
 |
Moon Phase: Waxing Crescent Moon | Civil Twilight: 6:23 AM EST |
Sunrise: 6:51 AM EST |
| Sunset: 4:46 PM EST |
Civil Twilight: 5:14 PM EST |
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 |
