Los Gatos, California climate: Normal weather by month, frost dates and records
Los Gatos's normal year runs from 40°F December nights to 85°F July afternoons, with 22.2 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 15.4°C, December lows of 4°C, July highs of 29°C, 564 mm of precipitation a year.
- NOAA stationLos Gatos
- Station IDUSC00045123
- Location37.23°N 121.96°W
- Elevation365 ft (111 m)
- From the centerunder 1 mile
- Population32,952
On October 23, the normal high in Los Gatos is 73°F and the normal low 47°F, and the chance of measurable rain or snow is 11%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Los Gatos.
- Jan 59° 40°
- Feb 62° 41°
- Mar 66° 43°
- Apr 70° 45°
- May 76° 49°
- Jun 82° 53°
- Jul 85° 56°
- Aug 85° 56°
- Sep 83° 54°
- Oct 76° 49°
- Nov 65° 43°
- Dec 58° 40°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Los Gatos each month?
July is the warmest month, with normal highs of 85°F; December the coldest, with normal lows of 40°F. The most precipitation falls in January (5.03 in), the least in July (0.00 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 59°F | 40°F | 49.0°F | 5.03 | 10 | <1 | 5 | 9 h 50 min |
| February | 62°F | 41°F | 51.6°F | 4.90 | 9 | <1 | 2 | 10 h 50 min |
| March | 66°F | 43°F | 54.7°F | 3.43 | 9 | <1 | <1 | 11 h 50 min |
| April | 70°F | 45°F | 57.7°F | 1.37 | 6 | 1 | <1 | 13 h 10 min |
| May | 76°F | 49°F | 62.4°F | 0.53 | 2 | 2 | <1 | 14 h 10 min |
| June | 82°F | 53°F | 67.1°F | 0.15 | 1 | 5 | <1 | 14 h 40 min |
| July | 85°F | 56°F | 70.4°F | 0.00 | <1 | 6 | <1 | 14 h 30 min |
| August | 85°F | 56°F | 70.2°F | 0.03 | <1 | 6 | <1 | 13 h 40 min |
| September | 83°F | 54°F | 68.2°F | 0.05 | <1 | 6 | <1 | 12 h 30 min |
| October | 76°F | 49°F | 62.2°F | 0.76 | 3 | 1 | <1 | 11 h 20 min |
| November | 65°F | 43°F | 53.6°F | 1.97 | 6 | <1 | 1 | 10 h 10 min |
| December | 58°F | 40°F | 48.6°F | 3.97 | 10 | <1 | 5 | 9 h 40 min |
| Year (annual) | 72°F | 47°F | 59.7°F | 22.19 | 56 | 27 | 13 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 15°C | 4°C | 9.4°C | 128 mm |
| February | 17°C | 5°C | 10.9°C | 124 mm |
| March | 19°C | 6°C | 12.6°C | 87 mm |
| April | 21°C | 7°C | 14.3°C | 35 mm |
| May | 24°C | 10°C | 16.9°C | 13 mm |
| June | 28°C | 11°C | 19.5°C | 4 mm |
| July | 29°C | 13°C | 21.3°C | 0 mm |
| August | 29°C | 13°C | 21.2°C | 1 mm |
| September | 28°C | 12°C | 20.1°C | 1 mm |
| October | 24°C | 9°C | 16.8°C | 19 mm |
| November | 18°C | 6°C | 12.0°C | 50 mm |
| December | 14°C | 4°C | 9.2°C | 101 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00045123; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Los Gatos?
Normal highs sit between 65°F and 85°F in March, April, May, June, July, August, September and October. Of those, July has the fewest days with rain (0).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00045123.
When is the last frost in Los Gatos?
In Los Gatos, the last spring frost (32°F) comes after February 2 in half of years and after March 14 in one year in ten; the first autumn frost comes before December 6 in half of years and before November 16 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- February 21 year in 10 after March 14; 9 in 10 after December 31
- First autumn frost, half of years before
- December 61 year in 10 before November 16; 9 in 10 before January 7
NOAA puts the median frost-free season at 310 days, and the season without a hard freeze (28°F) at 356 days.
A hard freeze (28°F) comes after January 1 in half of springs and before December 19 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Los Gatos in zone 9b across its 2 ZIP code areas (9b in 95032, the largest).
Frost dates for every NOAA station in California · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00045123; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
What hardiness zone is each Los Gatos ZIP code in?
The USDA's 2023 map gives each ZIP code area one zone. Los Gatos's 2 ZIP code areas are all in zone 9b. Each ZIP's frost dates are in the frost tool.
Source: USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; ZIP areas in the place: Census Bureau 2020 ZCTA-to-place relationship file. A ZIP area counts when at least a tenth of its land (and 0.5 km²) lies in the place.
How hot and how cold does it get in Los Gatos?
In a normal year in Los Gatos, 27 days a year reach 90°F (2 of them 100°F or more), 13 nights fall to 32°F or colder and 56 days bring measurable precipitation.
- Days at 90°F or more
- 27a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 13a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 56a normal year
The highest temperature in this station's record (since 1893) is 114°F, on June 14, 1961; the lowest is 16°F, on December 22, 1990.
The wettest calendar year on that record is 1909, with 51.77 in; the snowiest season is 1975–76, with 2.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00045123; records: ACIS (NOAA Regional Climate Centers), station USC00045123. Records use complete months only; a month missing more than three days is left out.
How sunny is Los Gatos?
Over a year 89% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Los Gatos, 5.3 kWh per square metre a day. July is the sunniest month (97%) and January the cloudiest (74%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 74% | 2.4 |
| February | 78% | 3.5 |
| March | 81% | 4.8 |
| April | 85% | 6.2 |
| May | 90% | 7.5 |
| June | 95% | 8.3 |
| July | 97% | 8.2 |
| August | 97% | 7.4 |
| September | 95% | 6.0 |
| October | 91% | 4.4 |
| November | 83% | 2.9 |
| December | 74% | 2.2 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Los Gatos need?
A normal year in Los Gatos brings 2,562 heating degree days, 52% fewer than the median U.S. place (5,373), and 625 cooling degree days, 31% fewer than the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,769 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 496 | 0 |
| February | 375 | 0 |
| March | 320 | 1 |
| April | 228 | 9 |
| May | 117 | 38 |
| June | 34 | 97 |
| July | 4 | 171 |
| August | 3 | 163 |
| September | 18 | 115 |
| October | 117 | 31 |
| November | 341 | 0 |
| December | 508 | 0 |
| Year (annual) | 2,562 | 625 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00045123. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
How does Los Gatos's climate compare?
Los Gatos is warmer than 88 of the other 218 places with their own NOAA record in California, and wetter than 145. Across the 7,247 U.S. stations with normals, its annual mean of 59.7°F is warmer than 74%.
In the Köppen classification computed from these normals, Los Gatos is Csb: temperate, dry-summer, warm summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Los Gatos share this climate record?
5 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Campbell, CA42,895 people · 3 mi N
- Saratoga, CA30,486 people · 4 mi NW
- Cambrian Park, CA3,752 people · 2 mi NE
- Monte Sereno, CA3,563 people · 2 mi W
- Lexington Hills, CA2,777 people · 5 mi S
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Los Gatos's climate
What is the coldest month in Los Gatos?
December, with a normal high of 58°F and a normal low of 40°F. The warmest is July (85°F by day, 56°F at night).
Does it snow in Los Gatos?
Rarely: NOAA's normal is no measurable snow a year.
What is the rainiest month in Los Gatos?
January, with 5.03 in of precipitation in a normal year; the driest is July with 0.00 in.
What plant hardiness zone is Los Gatos in?
The USDA's 2023 map puts Los Gatos in zone 9b across its 2 ZIP code areas (9b in 95032, the largest).
How late can frost come in Los Gatos?
In half of years the last 32°F night comes after February 2; in one year in ten it comes after March 14. Waiting until March 14 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Los Gatos in OctoberThis month day by day, its records and recent years
- California climateThe statewide normals and every place in the state
- San Jose, CA9 miles from this station, 60.7°F a year
- Ben Lomond, CA12 miles from this station, 60.4°F a year
- Sunnyvale, CA13 miles from this station, 59.9°F a year
- Skyline Ridge Preserve, CA14 miles from this station, 57.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made