Walnut Creek (CA) Temperatures: Monthly Averages and Year-Round Insights
On this page, we’ll explore Walnut Creek’s temperature statistics in detail, including day and night variations and monthly averages. We’ll also compare the annual temperature to other cities in the United States of America.
Monthly Temperature Averages
The climate in Walnut Creek is known for significant temperature differences throughout the year. Average maximum daytime temperatures range from a comfortable 30°C in July, the warmest time of the year, to a moderate 14°C during cooler months like December. At night, minimum temperatures typically average around 4°C during these months.
The chart below illustrates the average maximum day and minimum night temperatures in Walnut Creek by month:
Typically, the coolest time of day is between 4 AM and 6 AM, while the hottest time occurs around 3 PM, when the sun’s heating effect is strongest. July, the city’s warmest month, experiences 313 hours of sunshine.
The chart below shows the average temperature throughout the year:
December, the city’s coldest month, receives about 102 mm of rainfall spread over roughly 13 days. For more information, please visit our Walnut Creek Precipitation page.
Annual Temperatures in the United States of America Compared
The map below shows the annual temperature across the United States of America. You can also select the different months in case you are interested in a specific month.
very warm
warm
pleasant
moderate
cold
very cold
Walnut Creek Temperatures Compared World Wide
Walnut Creek’s average annual maximum temperature is 22°C. Let’s compare this with some popular tourist destinations:
In Barcelona, Spain, the average annual temperature is around 21°C, resulting in warm summers and mild winters throughout the year.
Meanwhile, Queenstown, New Zealand, the average annual temperature is significantly lower at 10°C, with mild summers and cold winters.
Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with an average annual temperature of 23°C, featuring hot summers and mild winters.
Melbourne, Australia, has a slightly cooler climate, with an average annual temperature of 20°C.
How does the temperature feel?
Humidity is an essential factor in how you experience temperature. When a warm period is accompanied by high humidity, it results in a higher perceived temperature. This is especially true when temperatures exceed 25°C, as it can cause greater discomfort.
In Walnut Creek, during the coolest month, December, you will experience 78% humidity, which is considered high. This is accompanied by an average maximum temperature of 14°C. In the warmest month, July, the humidity is 75% combined with an average maximum temperature of 30°C, which creates a high-feel temperature. Explore our detailed page on humidity levels for further details.
How are these Temperatures Measured?
Generally, temperature data depicting climate is usually given over a 30-year average in order to reduce short-term fluctuations and reveal better long-term trends in climate conditions.
This temperature data is taken from land-based thermometers, ocean buoys, ships, and satellites. These measurements are transmitted to weather stations and climate centers around the globe where they are processed, averaged, and analyzed in order to monitor the trends and create climate models.
Effects of Temperature on Weather and Climate
Temperature variations influence precipitation patterns in Amsterdam:
Rainfall: Warm air holds more moisture, leading to heavier rain during warmer months. However, precipitation is generally moderate year-round.
Snow: Occasional snowfall occurs in winter, though it rarely lasts very long.
For more detailed information about Walnut Creek’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Walnut Creek climate page.
Current temperature in Walnut Creek (CA)
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