Menlo Park (CA) Temperature by Month
Menlo Park, California, United States of America has an average annual maximum temperature of 21°C (70°F), ranging from 15°C (59°F) in December to 26°C (79°F) in July. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Menlo Park Monthly Temperatures
Depending on the time of the year, temperatures range from warm to mild in Menlo Park. Nighttime lows follow the same pattern, ranging from 14°C (57°F) to 5°C (41°F).
The chart below illustrates the average maximum day and minimum night temperatures in Menlo Park by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. July, the warmest month, averages 313 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Menlo Park vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
very warm
warm
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moderate
cold
very cold
Menlo Park vs World: Temperature Compared
Menlo Park's average annual maximum temperature is 21°C (70°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
What Does the Temperature Feel Like in Menlo Park?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Menlo Park, December is the coolest month, with average highs of 15°C (59°F) and humidity around 78% — considered high. In July, the warmest month, temperatures average 26°C (79°F) with 75% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Menlo Park's weather — including monthly rainfall, sunshine hours, and humidity — visit our Menlo Park climate page.
