Napa Weather in March: Temperature, Precipitation, Wind
Napa, United States in March experiences a mild Mediterranean climate with transitional characteristics between winter and spring. The average temperature hovers around 10.0°C (50.1°F), with daytime highs reaching 14.4°C (58.0°F) and nighttime lows dipping to 5.8°C (42.4°F).
Precipitation is a notable feature of Napa’s March weather. The region receives an average of 6.1 mm of rainfall, with rain occurring on 16 days throughout the month. The probability of precipitation stands at 51.6%, and rain covers approximately 24.2% of the area.
Wind patterns in Napa during March are relatively moderate. Average wind speeds measure 28.8 km/h (17.9 mph), with gusts reaching up to 42.2 km/h (26.2 mph). These winds contribute to the region’s overall climate, influencing temperature fluctuations and precipitation patterns.
Humidity levels in Napa remain relatively high in March, averaging 72.9%. Cloud cover is moderate, with an average of 49.8% throughout the month. Despite the cloud presence, visibility remains good at 14.7 km (9.1 miles).
UV index in Napa during March averages 6.8, indicating moderate to high levels of solar radiation. Visitors and residents should take appropriate sun protection measures when spending time outdoors, especially in popular locations like the Napa Valley vineyards or downtown Napa.
Atmospheric pressure in Napa averages 1015.5 hPa (30.0 inHg) during March, contributing to the region’s overall weather stability. The severe weather risk is relatively low at 10.0, but occasional storms are possible.
Sunrise in Napa occurs around 6:57 AM, while sunset takes place at approximately 6:55 PM, providing ample daylight hours for outdoor activities and vineyard tours. The lengthening days signal the transition from winter to spring in this renowned wine-growing region.
What is the temperature in Napa in March?
Average air temperature in Napa is 10°C (50.1°F) in March. The outside temperature in Napa feels like 9.2°C (48.6°F) on a typical March day. The highest average temperature during sunny days is 14.4°C (58°F) and feels like 14.4°C (57.9°F). The lowest average temperature after dark is 5.8°C (42.4°F) which feels like 4.3°C (39.7°F).
How hot is Napa in March?
The hot temperature in March in Napa rises to 19.1°C (66.4°F) on sunny days with low cloud coverage and 72.9% humidity. During hottest days of March it feels like 19.1 °C (66.4°F). The average maximum temp in Napa is 14.4°C (66.4°F) during day time in March.
How cold is Napa in March?
The coldest temp in Napa in March drops to 0.5°C (32.9°F) during the cold nights. With 28.8km/h (17.9mph) winds and 72.9% humidity it feels like -2°C (28.4°F) on the coldest nights. The average minimum temperature is 5.8°C (42.4°F) during night time in March.
Does it rain in Napa in March?
Yes, it rains for 16 days in Napa, United States in March averaging 6.1 mm of precipitation. Napa has a 51.6% chance for rain throughout the entire month of March.
How much does it rain in Napa throughout March?
Napa has 6.1 mm (0.24 inch) of rain per day on average in March. It rains for an average of 16 days out of the entire month.
Is Napa windy in March?
The average speed of wind in Napa, United States during March is 28.8km/h (17.9mph) and average windgust is 42.2km/h (26.2mph). On some days in March wind can reach up to 54.9km/h (34.1mph).
What is the direction of the wind in Napa in March?
Most days of March the wind is blowing from Southwest direction in Napa.
What are the humidity levels in Napa in March?
The average humidity levels in Napa in March are 72.9%. Daily humidity levels in Napa range from 55.8% to 89.2% during March.
How many hours of daylight are in Napa in March?
Napa has 11 hours 58 minutes of daylight in March on average. Sunset and sunrise times gradually change throughout the month. Sunrise in Napa in March is at 6:57:25 and the sunset is at 18:55:51.
What is the cloud coverage in Napa in March?
Clouds cover 49.8% of the sky on average throughout March in Napa. The cloud coverage ranges from 0% to 99.7% depending on the day of the month.
What is the UV level in March in Napa?
The average UV index in Napa is 6.8 in March. UV levels change throughout the month and range from 1 to 10.
What is the solar radiation in Napa in March?
The average solar radiation is 174.5 W/m2 (Watts per square meter) in Napa during March. However solar radiation levels change throughout the month and range from 35.3 W/m2 to 282.8 W/m2.
What is the solar energy during March in Napa?
The average solar energy during March in Napa is 15 MJ/m2 (megajoules per square metre). Solar energy ranges from 2.9 MJ/m2, to 24.6 MJ/m2 during March.
Are there severe weather risks in Napa in March?
Yes, there is a 10% risk for severe weather in Napa, United States in March.
What is the air pressure in Napa in March?
On average the air pressure in Napa in March is 1015.5 mb (millibars). Throughout the month the sea level pressure ranges from 996 mb to 1028.3 mb.
What is the visibility in Napa in March?
The average daylight visibility in Napa in March is 14.7 km (9.1 miles). Depending on the precipitation the visibility ranges from 9.6 km (6 miles) to 16 km (9.9 miles) throughout March.
What is the dew point in Napa in March?
The average dew point in Napa during March is 5°C (41°F).
Where is the data for Napa climate in March coming from?
The climate data for Napa, California, United States in March is collected from the following weather stations.
- VACAVILLE NUT TREE AIRPORT, CA US
- NAPA CO AIRPORT, CA US
- PETALUMA MUNICIPAL AIRPORT, CA US
- Oakville CA US CIMIS
- FW1058 American Canyon CA US
- FW7520 Sonoma CA US
- KAPC
- KDVO
- KVCB