Arcata (CA) Temperatures: Monthly Averages and Year-Round Insights
On this page, we’ll explore Arcata’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
Arcata sees moderate fluctuations in temperatures, making each season distinct yet not extreme. Average maximum daytime temperatures range from a pleasant 20°C in September, the warmest time of the year, to a moderate 12°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 Arcata by month:
The lowest temperatures typically occur between 4 AM and 6 AM, while the peak temperatures are generally observed around 3 PM, coinciding with the sun’s strongest heating effect.
The chart below shows the average temperature throughout the year:
December, the city’s coldest month, receives about 227 mm of rainfall spread over roughly 19 days. For more information, please visit our Arcata 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
Arcata Temperatures Compared World Wide
Arcata’s average annual maximum temperature is 16°C. Let’s compare this with some popular tourist destinations:
The city of Rome, Italy, has an average annual temperature of 20°C, known for its sunny summers and comfortable winters.
In contrast, in ReykjavÃk, Iceland, the average annual temperature is significantly lower at 9°C, with mild summers and cold winters.
Boston, USA, experiences seasonal shifts similar to New York, with an average annual temperature of 16°C.
In Brisbane, Australia, the average annual temperature is 26°C, making it warmer than Sydney.
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.
Temperatures in the Mountains
Although not all regions have mountains, elevated areas exhibit distinct temperature variations.
- Sun Exposure: Sunlit slopes tend to be warmer, while shaded areas remain cooler.
- Altitude Effects: Temperatures drop by approximately 6°C for every 1,000 meters of elevation, creating distinct microclimates.
For more detailed information about Arcata’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Arcata climate page.
Current temperature in Arcata (CA)
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overcast and heavy rain
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broken clouds and rain
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partly cloudy and no rain
