Colma, CA Climate


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United States / California / San Francisco-Oakland-Berkeley Metro Area / San Mateo County / Colma / Zip Codes
Colma, CA experiences a Mediterranean climate which is characterized by cool, wet winters and warm, dry summers. Average temperatures range from the mid 50s Fahrenheit in the winter to the mid 70s Fahrenheit in the summer. Rainfall averages about 22 inches each year spread out over 8 or 9 months of rain. Overall, Colma has very mild weather with very little variation throughout the year, making it an ideal place to live year-round.

Colma, California gets 25 inches of rain, on average, per year. The US average is 38 inches of rain per year.

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

On average, there are 264 sunny days per year in Colma. The US average is 205 sunny days.

Colma gets some kind of precipitation, on average, 68 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 67 degrees
Winter Low: the January low is 46
Rain: averages 25 inches of rain a year
Snow: averages 0 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Colma is 8.4 (10=best), which means it is more comfortable than most places in California.

9.1 Summer - 7.6 Winter
September, August and October are the most pleasant months in Colma, while January and December are the least comfortable months.

  ClimateColma, CaliforniaUnited States
  25.3 in.38.1 in.
  0.0 in.27.8 in.
  68.1 days106.2 days
  264 days205 days
  66.6°85.8°
  46.0°21.7°
  8.47
  4.94.3
  115 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.

September is the hottest month for Colma with an average high temperature of 69.1°, which ranks it as one of the coolest places in California. In Colma, there are 0 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Colma are September, August and October.
In Colma, there are 1.6 days annually when the high temperature is over 90°, which is one of the coolest places in California.
January has the coldest nighttime temperatures for Colma with an average of 46.0°. This is one of the warmest places in California.
In Colma, there are 0.3 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in California.
In Colma, 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 Colma 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 August, July and September.
December is the wettest month in Colma with 4.9 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 58% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 25.3 inches in Colma means that it is wetter than most places in California.
December is the rainiest month in Colma with 11.1 days of rain, and July is the driest month with only 0.3 rainy days. There are 68.1 rainy days annually in Colma, which is rainier than most places in California. The rainiest season is Spring when it rains 49% of the time and the driest is Autumn with only a 4% chance of a rainy day.
There is rarely any recorded snowfall in Colma, ranking it as one of the least snowy places in California. Any measurable snowfall is a rare occurance in Colma.
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