Rocklin, CA Climate


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United States / California / Sacramento-Roseville-Folsom Metro Area / Placer County / Rocklin / Zip Codes
Rocklin, CA has a Mediterranean climate characterized by dry, hot summers and cool, wet winters. The average summer temperature is around 77 degrees Fahrenheit while the winter temperatures tend to stay between 40 and 50 degrees. Rainfall is generally light throughout the year with the wettest months being December through April. Snowfall is rare but it does occur from time to time in the colder months. Overall, Rocklin enjoys mild weather conditions that make it an ideal place for outdoor activities all year round.

Rocklin, California gets 21 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Rocklin averages 0 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 255 sunny days per year in Rocklin. The US average is 205 sunny days.

Rocklin gets some kind of precipitation, on average, 60 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 94 degrees
Winter Low: the January low is 39
Rain: averages 21 inches of rain a year
Snow: averages 0 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Rocklin is 8.2 (10=best), which means it is about average compared to other places in California.

8.2 Summer - 7.2 Winter
May, October and April are the most pleasant months in Rocklin, while January and December are the least comfortable months.

  ClimateRocklin, CaliforniaUnited States
  20.8 in.38.1 in.
  0.0 in.27.8 in.
  60.0 days106.2 days
  255 days205 days
  94.0°85.8°
  39.0°21.7°
  8.27
  4.84.3
  259 ft.2443 ft.
Climate
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.

July is the hottest month for Rocklin with an average high temperature of 94.0°, which ranks it as warmer than most places in California. In Rocklin, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rocklin are October, May and April.
In Rocklin, there are 77.8 days annually when the high temperature is over 90°, which is hotter than most places in California.
December has the coldest nighttime temperatures for Rocklin with an average of 38.9°. This is warmer than most places in California.
In Rocklin, there are 10.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.
In Rocklin, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.
Humidity in Rocklin is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are July, August and June.
January is the wettest month in Rocklin with 4.0 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 54% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 20.8 inches in Rocklin means that it is about average compared to other places in California.
January is the rainiest month in Rocklin with 10.6 days of rain, and July is the driest month with only 0.1 rainy days. There are 60.0 rainy days annually in Rocklin, which is about average compared to other places in California. The rainiest season is Spring when it rains 50% of the time and the driest is Autumn with only a 3% chance of a rainy day.
There is rarely any recorded snowfall in Rocklin, ranking it as one of the least snowy places in California. Any measurable snowfall is a rare occurance in Rocklin.
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Mariah · Orangevale, CA
STOP BUILDING & Rocklin will remain great
Over 4 years ago

I have had the blessed opportunity to be born and raised in Rocklin, CA. Rocklin is truly one of the best towns to live in, in the sacramento area. It's a clean, smaller  More

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James · Rocklin, CA
Great place to live
Over 5 years ago

I've lived in the Sacramento vicinity for 12 years, and in Northern California my entire life (I grew up in the San Jose area). The area of Rocklin I am living in is the  More

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Gary · Rocklin, CA
Rocklin, is not all that
Over 13 years ago

seriously? Let me tell you what I have observed since moving here from Gilbert, AZ 3 months ago.I know I am going to take grief for this so go ahead and let it fly,  More

   |    Reply

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