Zip 94558 (Napa, CA) Weather


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The most pleasant months of the year for the 94558 zip code are October, May and June. In the 94558 zip code, there are 7 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for the 94558 zip code with an average high temperature of 83.1°, which ranks it as cooler than most places in California. Any measurable snowfall is a rare occurance in the 94558 zip code. Days with noticeable humidity are rare throughout the year.

Today's Weather - Napa, CA

9 AM PST

Sunny

64°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TodaySunny76° / 58°W 2 to 8 mph
WednesdayChance Drizzle72° / 52°W 7 mph
ThursdaySunny67° / 56°WNW 7 to 12 mph
FridaySunny68° / 59°N 15 to 23 mph
SaturdaySunny75° / 55°N 1 to 18 mph
SundaySunny73° / 56°SW 5 mph
MondaySunny71° / 55°WSW 5 mph

Weather Highlights

Summer High: the July high is around 82 degrees
Winter Low: the January low is 38
Rain: averages 27 inches of rain a year
Snow: averages 0 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Napa (zip 94558) area is 9.5 (10=best), which means it is more comfortable than most places in California.

9.5 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January57° 38°
February62° 40°
March66° 42°
April70° 43°
May76° 48°
June81° 51°
July82° 54°
August83° 53°
September83° 51°
October77° 46°
November65° 41°
December57° 37°
Hot, Freezing, Rainy, Snowy Days: Napa
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January07110
February03110
March01100
April0070
May2040
June5010
July5000
August6000
September6010
October1040
November0280
December08120

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

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