Climate · Highlands

Highlands, CA climate

Highlands has warm winters and pleasant summers. A typical July afternoon reaches 77°, a January night drops to 41°, and snow is almost unheard of.

NOAA 1991-2020 climate normals Updated once a decade
July high
77°
235th coolest of 1,618 California towns
January low
41°
500th mildest of 1,618 California towns
Rain + melted snow
24 in
505th wettest of 1,618 California towns
Snow a winter
0.0 in
470th snowiest of 1,499 California towns
A normal year

What a year in Highlands feels like

Winter

59° / 42°
Typical high / low · Snow is rare

Spring

66° / 46°
Typical high / low · Frost is rare by spring

Summer

76° / 53°
Typical high / low · 18 days reach 90° in a normal year

Fall

72° / 49°
Typical high / low · Mild well into the fall
Best months to be outsideMarAprMayJunJulAugSepOctNovHighs of 62–84° and lows of 40° or more
Month by month

Highlands weather by month

Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January58°41°4.8" 090 47° – 53°
February61°43°4.7" 090 48° – 56°
March64°44°3.6" 090 49° – 58°
April66°45°1.7" 050 52° – 59°
May70°49°0.8" 030 55° – 64°
June74°51°0.2" 010 59° – 65°
July77°53°0.0" 000 62° – 68°
August77°54°0.0" 000 64° – 69°
September77°53°0.1" 010 62° – 69°
October73°49°1.1" 030 59° – 66°
November64°44°2.4" 060 49° – 57°
December58°41°4.9" 090 46° – 55°
Year68°47°24.4"0.0"550

“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.

Rain & snow

Rain and snow in Highlands

Highlands gets 24 inches of rain and melted snow a year. December is the wettest month and July the driest. Rain or snow falls on about 55 days a year.

24 in
Rain + melted snow a year
Less rain than 83% of U.S. towns
0.0 in
Snow in a normal winter
Less snow than 96% of U.S. towns
0 days
With 1"+ of snow on the ground
Fewer than 94% of U.S. towns

Rain + melted snow by month

Inches of water
4.9"

Snowfall by month

No measurable snow in a normal year.
Frost & the growing season

A year-round growing season

🌿 Only about most winters dip to 32° here (88% of years), so gardens can grow year-round.
6
nights at or below 32° in a normal year
0
nights below 0° in a normal year
18
days that reach 90° in a normal year

Freezing nights by month

Average nights at or below 32°

90° days by month

Average days at 90° or more
Heating & cooling

Heating and cooling a home in Highlands

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Highlands, 84% of that work is heating and 16% is cooling, so the furnace matters far more than the air conditioner.

84%heating
2,519 heating degree daysLess heating than 89% of U.S. towns
475 cooling degree daysLess cooling than 79% of U.S. towns

Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.

Around Highlands

Highlands and its neighbors

Highlands borders 3 towns with climate data. January nights across them vary by 3.1°. Baywood Park has both the coldest January nights (41°) and the hottest July afternoons (77°). Highlands’s January low is 41° and its July high 77°.

Foster City: January low 44°, July high 72°Belmont: January low 42°, July high 76°Burlingame: January low 45°, July high 69°San Mateo: January low 44°, July high 71°Hillsborough: January low 43°, July high 72°Baywood Park: January low 41°, July high 77°Highlands: January low 41°, July high 77° HighlandsSan MateoHillsboroughBaywood Park
ColderMilder41° to 45°
Highlands41.2°
Baywood Park41.2° same
Hillsborough43.4° +2.2°
San Mateo44.3° +3.1°

Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.

Compared with other towns

How Highlands compares

Summer heat77° July high
Cooler than 97% of U.S. towns235th coolest of 1,618 California towns
Winter cold41° January low
Milder than 95% of U.S. towns500th mildest of 1,618 California towns
Precipitation24" a year
Drier than 83% of U.S. towns505th wettest of 1,618 California towns
Snow0.0" a winter
Less snow than 96% of U.S. towns470th snowiest of 1,499 California towns

Compared with every U.S. town and city on TownTapestry, each counted once.

Then and now

Warmer than it used to be

+1.7°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Highlands averaged 1.7° warmer than the 1900s. The biggest change is in January (+2.3°). The shift is larger than in 81% of U.S. towns.

❄️ Winter+1.6° now 50°, was 49°
🌷 Spring+1.8° now 56°, was 54°
☀️ Summer+1.9° now 64°, was 63°
🍂 Fall+1.5° now 60°, was 59°

Change by month1991–2020 average minus 1901–2000 average, at Highlands’s spot on NOAA’s grid

Year to year

How much a month can swing

A normal is an average, and real years wander around it. March swings the most: between 1991 and 2020 its average temperature ranged from 49° to 58°. August is the most reliable, staying within 5°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Highlands’s climate

What is the coldest month in Highlands?

December, with a typical high of 58° and a low of 41°.

What is the hottest month in Highlands?

August, with a typical high of 77° and a low of 54°. About 18 days a year reach 90°.

How much snow does Highlands get?

Almost none. A normal year brings 0.0 inches.

When is the first frost in Highlands?

Frost is uncommon. Only 88% of years see a night at 32° or below.

What is the rainiest month in Highlands?

December, with 4.9 inches of rain and melted snow. The year totals 24 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Highlands itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Redwood City, CA (7 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.

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