Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
August ushers in an average high-temperature of a still warm 83.5°F (28.6°C), aligning closely with the preceding month. During August nights, Janesville documents a marked contrast from daily highs, with an average temperature of 51.4°F (10.8°C).Humidity
July and August, with an average relative humidity of 35%, are the least humid months.Rainfall
In Janesville, in August, it is raining for 2.8 days, with typically 0.16" (4mm) of accumulated precipitation. Throughout the year, there are 97.2 rainfall days, and 13.98" (355mm) of precipitation is accumulated.Snowfall
In Janesville, California, snow does not fall in July and August.Daylight
The average length of the day in August is 13h and 43min.On the first day of the month, sunrise is at 6:00 am and sunset at 8:16 pm. On the last day of August, in Janesville, sunrise is at 6:29 am and sunset at 7:34 pm PDT.
Sunshine
In Janesville, the average sunshine in August is 11.9h.UV index
The average daily maximum UV index in August in Janesville is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 5 during August translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is August in Janesville?
What are the least humid months in Janesville?
What is the average humidity in August in Janesville?
How much does it rain in Janesville in August?
When it does not snow in Janesville?
Does it snow in Janesville in August?
How many hours of daylight does Janesville have in August?
When is the sunrise / sunset in August in Janesville?
How many hours of sunshine does Janesville have in August?
How high is the UV index in August in Janesville?
Average temperature in August
Janesville, CA
- Average high temperature in August: 83.5°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is December (36.9°F).
- Average low temperature in August: 51.4°F
The month with the highest average low temperature is July (52.7°F).
The coldest month (with the lowest average low temperature) is December (22.6°F).
Average pressure in August
Janesville, CA
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
Janesville, CA
- Average wind speed in August: 5.8mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is January (5.2mph).
Average humidity in August
Janesville, CA
- Average humidity in August: 35%
The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (35%).
Average rainfall in August
Janesville, CA
- Average rainfall in August: 0.16"
The wettest month (with the highest rainfall) is December (2.28").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in August
Janesville, CA
- Average rainfall days in August: 2.8 days
The month with the highest number of rainy days is March (13.4 days).
The months with the least rainy days are July and August (2.8 days).
Average snowfall in August
Janesville, CA
- Average snowfall in August: 0"
The month with the highest snowfall is December (10.16").
The months with the least snowfall are July and August (0").
Average snowfall days in August
Janesville, CA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (11.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Janesville, CA
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in August: 11h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 5h and 48min).
Average sunshine days in August
Janesville, CA
- Average sunshine days in August: 26.2 days
The month with the most sunshine days is August (26.2 days).
The month with the least sunshine days is March (12 days).
Average UV index in August
Janesville, CA
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are February and November (UV index 1).
Average cloud cover in August
Janesville, CA
- Average cloud cover in August: 7
The month with the most cloud cover is December (Cloud cover 38).
The months with the least cloud cover are July and August (Cloud cover 7).
Average visibility in August
Janesville, CA
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Janesville, California, USA
Weather forecast for your location
2. Allow the app to use your location