Kentfield, California climate: Normal weather by month, frost dates and records
Kentfield's normal year runs from 42°F December nights to 83°F August afternoons, with 44.4 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 15.1°C, December lows of 5°C, August highs of 28°C, 1,128 mm of precipitation a year.
- NOAA stationKentfield
- Station IDUSC00044500
- Location37.96°N 122.54°W
- Elevation145 ft (44 m)
- From the center2 miles
- Population (census place)7,128
On October 23, the normal high in Kentfield is 74°F and the normal low 49°F, and the chance of measurable rain or snow is 14%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Kentfield.
- Jan 57° 42°
- Feb 61° 43°
- Mar 65° 44°
- Apr 69° 46°
- May 74° 50°
- Jun 80° 52°
- Jul 83° 53°
- Aug 83° 54°
- Sep 82° 53°
- Oct 76° 50°
- Nov 64° 45°
- Dec 56° 42°
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 Kentfield each month?
August is the warmest month, with normal highs of 83°F; December the coldest, with normal lows of 42°F. The most precipitation falls in December (9.78 in), the least in July (0.00 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 57°F | 42°F | 49.2°F | 8.77 | 12 | <1 | 2 | 9 h 50 min |
| February | 61°F | 43°F | 52.2°F | 8.72 | 11 | <1 | 1 | 10 h 50 min |
| March | 65°F | 44°F | 54.8°F | 6.00 | 11 | <1 | <1 | 11 h 50 min |
| April | 69°F | 46°F | 57.5°F | 2.61 | 6 | <1 | <1 | 13 h 10 min |
| May | 74°F | 50°F | 61.5°F | 1.40 | 4 | 2 | <1 | 14 h 10 min |
| June | 80°F | 52°F | 65.8°F | 0.36 | 1 | 5 | <1 | 14 h 50 min |
| July | 83°F | 53°F | 67.9°F | 0.00 | <1 | 6 | <1 | 14 h 30 min |
| August | 83°F | 54°F | 68.3°F | 0.05 | <1 | 6 | <1 | 13 h 40 min |
| September | 82°F | 53°F | 67.4°F | 0.09 | 1 | 7 | <1 | 12 h 30 min |
| October | 76°F | 50°F | 62.9°F | 1.98 | 4 | 2 | <1 | 11 h 20 min |
| November | 64°F | 45°F | 54.5°F | 4.63 | 8 | <1 | <1 | 10 h 10 min |
| December | 56°F | 42°F | 49.1°F | 9.78 | 12 | <1 | 2 | 9 h 30 min |
| Year (annual) | 71°F | 48°F | 59.2°F | 44.39 | 68 | 27 | 5 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 14°C | 5°C | 9.6°C | 223 mm |
| February | 16°C | 6°C | 11.2°C | 221 mm |
| March | 18°C | 7°C | 12.7°C | 152 mm |
| April | 20°C | 8°C | 14.2°C | 66 mm |
| May | 23°C | 10°C | 16.4°C | 36 mm |
| June | 26°C | 11°C | 18.8°C | 9 mm |
| July | 28°C | 12°C | 19.9°C | 0 mm |
| August | 28°C | 12°C | 20.2°C | 1 mm |
| September | 28°C | 12°C | 19.7°C | 2 mm |
| October | 24°C | 10°C | 17.2°C | 50 mm |
| November | 18°C | 7°C | 12.5°C | 118 mm |
| December | 14°C | 5°C | 9.5°C | 248 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00044500; 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 Kentfield?
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 USC00044500.
When is the last frost in Kentfield?
In Kentfield, the last spring frost (32°F) comes after January 16 in half of years and after February 25 in one year in ten; the first autumn frost comes before December 18 in half of years and before November 30 in one year in ten. A night at 32°F or colder comes at all in 86% of years here (NOAA).
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- January 161 year in 10 after February 25; 9 in 10 after December 21
- First autumn frost, half of years before
- December 181 year in 10 before November 30; 9 in 10 before January 19
NOAA puts the median frost-free season at 334 days, and the season without a hard freeze (28°F) at 365 days.
A hard freeze (28°F) comes after December 30 in half of springs and before December 24 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Kentfield in zones 9b to 10a across its 2 ZIP code areas (9b in 94904, the largest). By the map's own method, the average of each year's coldest night over 1991-2020, Kentfield's NOAA station is in zone 10a: the coldest night of a typical year reaches 30°F (27 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in California · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00044500; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. 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 Kentfield ZIP code in?
The USDA's 2023 map gives each ZIP code area one zone. Kentfield's 2 ZIP code areas run from zone 9b to 10a: 1 in 10a and 1 in 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 Kentfield?
In a normal year in Kentfield, 27 days a year reach 90°F (3 of them 100°F or more), 5 nights fall to 32°F or colder and 68 days bring measurable precipitation.
- Days at 90°F or more
- 27a normal year
- Days at 100°F or more
- 3a normal year
- Nights at 32°F or colder
- 5a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 68a normal year
The highest temperature in this station's record (since 1902) is 112°F, on July 11, 1913; the lowest is 17°F, on December 31, 1915.
The wettest calendar year on that record is 1940, with 91.93 in; the snowiest season is 1948–49, with 1.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00044500; records: ACIS (NOAA Regional Climate Centers), station USC00044500. Records use complete months only; a month missing more than three days is left out.
How sunny is Kentfield?
Over a year 80% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Kentfield, 4.7 kWh per square metre a day. June is the sunniest month (84%) and December the cloudiest (74%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 76% | 2.5 |
| February | 77% | 3.4 |
| March | 79% | 4.6 |
| April | 82% | 6.0 |
| May | 81% | 6.7 |
| June | 84% | 7.3 |
| July | 78% | 6.5 |
| August | 77% | 5.8 |
| September | 82% | 5.1 |
| October | 83% | 4.0 |
| November | 81% | 2.8 |
| December | 74% | 2.1 |
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 Kentfield need?
A normal year in Kentfield brings 2,546 heating degree days, 53% fewer than the median U.S. place (5,373), and 458 cooling degree days, 49% 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 3,578 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 488 | 0 |
| February | 360 | 0 |
| March | 319 | 1 |
| April | 232 | 7 |
| May | 135 | 27 |
| June | 46 | 70 |
| July | 13 | 102 |
| August | 10 | 113 |
| September | 26 | 98 |
| October | 105 | 40 |
| November | 316 | 1 |
| December | 494 | 0 |
| Year (annual) | 2,546 | 458 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00044500. 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.
Has Kentfield been warmer than normal lately?
2025 averaged 59.3°F, 0.1°F above the 1991-2020 normal of 59.2°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 59.5°F | +0.3°F | 50.13 |
| 2022 | 59.9°F | +0.6°F | 25.84 |
| 2023 | 58.8°F | −0.4°F | 59.12 |
| 2024 | 60.6°F | +1.4°F | 53.77 |
| 2025 | 59.3°F | +0.1°F | 36.97 |
Over 66 complete years from 1903 to 2025, the station's annual mean temperature rose at a fitted 2.5°F per century (+0.14°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00044500; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Kentfield's climate compare?
Kentfield is warmer than 78 of the other 218 places with their own NOAA record in California, and wetter than 193. Across the 7,247 U.S. stations with normals, its annual mean of 59.2°F is warmer than 72%.
In the Köppen classification computed from these normals, Kentfield 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 Kentfield share this climate record?
11 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.
- Mill Valley, CA13,904 people · 3 mi S
- Larkspur, CA12,807 people · 1 mi SE
- Tamalpais-Homestead Valley, CA12,153 people · 5 mi S
- Corte Madera, CA10,006 people · 3 mi SE
- Strawberry, CA5,496 people · 5 mi SE
- Marin City, CA3,597 people · 6 mi S
- Ross, CA2,297 people · 1 mi NW
- Bolinas, CA1,176 people · 9 mi W
- Alto, CA866 people · 4 mi S
- Muir Beach, CA399 people · 7 mi S
- Stinson Beach, CA366 people · 7 mi SW
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 Kentfield's climate
What is the coldest month in Kentfield?
December, with a normal high of 56°F and a normal low of 42°F. The warmest is August (83°F by day, 54°F at night).
Does it snow in Kentfield?
Rarely: NOAA's normal is no measurable snow a year.
What is the rainiest month in Kentfield?
December, with 9.78 in of precipitation in a normal year; the driest is July with 0.00 in.
What plant hardiness zone is Kentfield in?
The USDA's 2023 map puts Kentfield in zones 9b to 10a across its 2 ZIP code areas (9b in 94904, the largest). By the same method at Kentfield's NOAA station, the coldest night of a typical year reaches 30°F (27 years, 1991-2020): zone 10a.
How late can frost come in Kentfield?
In half of years the last 32°F night comes after January 16; in one year in ten it comes after February 25. Waiting until February 25 leaves about a one-in-ten chance of a later frost.
Nearby and next
- California climateThe statewide normals and every place in the state
- San Rafael, CA3 miles from this station, 59.5°F a year
- Richmond, CA9 miles from this station, 58.8°F a year
- San Francisco, CA14 miles from this station, 57.7°F a year
- San Francisco Oceanside, CA16 miles from this station, 56.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made