Lake Forest (CA) Temperatures: Monthly Averages and Year-Round Insights
On this page, we’ll explore Lake Forest’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
Visitors to Lake Forest will encounter a climate influenced by big temperature differences across the year. Average maximum daytime temperatures reach a very warm 31°C in August. In February, the coolest month of the year, temperatures drop to a pleasant 19°C. At night, minimum temperatures can drop even lower, averaging around 8°C.
The chart below illustrates the average maximum day and minimum night temperatures in Lake Forest by month:
The early hours of 4 AM to 6 AM often see the lowest temperatures, while 3 PM marks the peak of the day’s heat as the sun’s impact is strongest. August, the city’s warmest month, boasts 351 hours of sunshine.
The chart below shows the average temperature throughout the year:
February, the city’s coldest month, receives about 43 mm of rainfall spread over roughly 6 days. For more information, please visit our Lake Forest 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.
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Lake Forest Temperatures Compared World Wide
Lake Forest’s average annual maximum temperature is 25°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.
Glasgow, Scotland, the average annual temperature is significantly lower at 13°C, with mild summers and cold winters.
The climate in San Francisco, USA, is mild, with an average annual temperature of 19°C and minimal seasonal variation.
In Tokyo, Japan, the average annual temperature is 21°C, expect warmer summers and milder winters.
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.
Global Warming and Its Effects
Climate change is affecting worldwide temperatures, including in Lake Forest. It has massive impacts on both local and global levels:
- Global Temperature Rise: The average global land and sea temperatures have risen by about 1.2°C since pre-industrial times.
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Local Impacts: Most regions of the world are witnessing warmer winters with fewer frost and snowfall days. The global frequency and severity of heatwaves have increased. For example, Europe's summers of 2018, 2019, and 2020 all broke records. Summers are also becoming drier; however, during winter, inland regions have experienced increased rainfall. This has caused elevated river levels and more cases of flooding.
Many countries are experiencing earlier springs and later autumns. This is why some bird species have shifted their migration dates.
For more detailed information about Lake Forest’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Lake Forest climate page.
Current temperature in Lake Forest (CA)
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