Janesville, CA Weather


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The most pleasant months of the year for Janesville are September, June and May. In Janesville, there are 2 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Janesville with an average high temperature of 87.7°, which ranks it as about average compared to other places in California. January is the snowiest month in Janesville with 5.5 inches of snow, and 6 months of the year have significant snowfall. There are few days during the year when the humidity is even noticable.

Today's Weather - Janesville, CA

12 AM PST

Showers And Thunderstorms Likely

45°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
This AfternoonShowers And Thunderstorms Likely48° / 30°NW 10 to 15 mph
SaturdayMostly Sunny57° / 36°NW 5 to 15 mph
SundaySunny61° / 37°W 5 to 15 mph
MondaySunny63° / 35°W 5 to 15 mph
TuesdaySunny64° / 37°N 5 to 15 mph
WednesdaySunny65° / 41°S 5 to 15 mph
ThursdaySunny61° / 38°SW 5 to 15 mph

Weather Highlights

Summer High: the July high is around 88 degrees
Winter Low: the January low is 24
Rain: averages 13 inches of rain a year
Snow: averages 19 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Janesville area is 8.9 (10=best), which means it is more comfortable than most places in California.

8.9 / 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
January41° 24°
February46° 26°
March54° 30°
April61° 34°
May70° 40°
June79° 46°
July88° 52°
August87° 50°
September79° 44°
October66° 36°
November51° 29°
December41° 23°
Hot, Freezing, Rainy, Snowy Days: Janesville
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January02662
February02162
March01961
April01241
May1440
June3130
July12010
August9010
September2120
October0830
November02061
December02662

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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