PlainClimate
NOAA 1991–2020 normals 63°F annual avg Public-domain federal data

Stockton Metro, CA Climate

Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →

63°F
Avg annual temp
82/100
Comfort score
13.4"
Annual precip
298d
Growing season

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for Stockton Metro

Stockton Metro, California averages 63°F a year and scores 82/100 on the comfort index - excellent, milder than 83% of U.S. cities.

63°F
annual average temperature (NOAA normal)
82/100
comfort score, milder than 83% of U.S. cities
13.4"
precipitation, annual total
298 days
growing season, frost-free days

Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.

Avg Temperature

63°F (17°C)

Avg High

77°F

Avg Low

49°F

Annual Precip

13.4"

Comfort Score

82/100

Excellent

Climate Comfort Score

82/100

Excellent

Avg Annual Temperature

63°F

30-year mean (NOAA NCEI)

Annual Precipitation

13.4"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Stockton Metro) 82.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the Stockton Metro area.

How Stockton Metro compares to every U.S. city

Stockton Metro's comfort score vs. all U.S. cities

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

82 Top 17% higher than 83% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). Below this entry. 40–50: 1,302 US cities (19%). Below this entry. 50–60: 1,433 US cities (21%). Below this entry. 60–70: 1,357 US cities (20%). Below this entry. 70–80: 1,102 US cities (16%). Below this entry. 80–90: 778 US cities (11%). This entry sits in this band. 90–100: 420 US cities (6%). Above this entry. This city 0 100 every U.S. city, bucketed by value

Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020

Warming context for Stockton Metro

Methodology

Stockton Metro's NOAA 1991-2020 normal sits inside a longer story: U.S. land temperatures have been tracking (and drifting from) the global mean since 1900, and the chart below shows that spread, with the most recent decade running warmer than the 30-year mean.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • United States land mean (NOAA NCEI) +0.11 °C/decade
  • Global anomaly (NASA GISTEMP) +0.11 °C/decade
  • Paris Agreement thresholds 1.5°C / 2.0°C
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 57°F (14°C) 39°F (4°C) 48°F (9°C)
February 63°F (17°C) 41°F (5°C) 52°F (11°C)
March 69°F (20°C) 44°F (7°C) 56°F (14°C)
April 75°F (24°C) 47°F (9°C) 61°F (16°C)
May 83°F (28°C) 53°F (11°C) 68°F (20°C)
June 90°F (32°C) 58°F (14°C) 74°F (23°C)
July 95°F (35°C) 61°F (16°C) 78°F (26°C)
August 94°F (35°C) 60°F (16°C) 77°F (25°C)
September 90°F (32°C) 58°F (14°C) 74°F (23°C)
October 80°F (27°C) 51°F (10°C) 66°F (19°C)
November 67°F (19°C) 43°F (6°C) 55°F (13°C)
December 57°F (14°C) 38°F (4°C) 48°F (9°C)

Monthly Precipitation

Average monthly rainfall

January 2.7"

9.7 days with precipitation

February 2.5"

9.2 days with precipitation

March 1.9"

9.0 days with precipitation

April 1.1"

5.3 days with precipitation

May 0.6"

2.9 days with precipitation

June 0.1"

1.0 days with precipitation

July 0.0"

0.2 days with precipitation

August 0.0"

0.2 days with precipitation

September 0.1"

0.7 days with precipitation

October 0.7"

2.8 days with precipitation

November 1.4"

6.4 days with precipitation

December 2.4"

9.1 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

December 1

50% probability date

Last Spring Freeze

February 6

50% probability date

Growing Season

298 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

2,260

Higher = more heating needed

Cooling Degree Days

1,566

Higher = more cooling needed

Warmest Month

July

Coldest Month

December

Humidity & Wind

Monthly averages from hourly observations

Month Humidity Wind (mph)
January 80% 6.4
February 72% 7.0
March 64% 8.1
April 55% 9.2
May 52% 9.8
June 47% 9.0
July 48% 8.4
August 48% 7.8
September 51% 6.7
October 61% 5.6
November 75% 6.1
December 81% 6.5

What Stockton Metro's climate means for you

Stockton Metro runs 63°F a year - peaking in July, coldest in December.

  • Gardeners get about 298 frost-free days, with the last spring freeze near February 6 - plan the planting calendar around it, not the regional average.
  • Energy bills track 2,260 heating and 1,566 cooling degree days a year, higher means the furnace or AC runs more.
  • Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings

These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.

Climate Guides

Climate Insight: Stockton Metro, CA

Stockton Metro, California runs an annual average of 63°F, ranging from a mean daily high of 77°F to a mean daily low of 49°F, per NOAA's 1991–2020 climate normals. July is typically the warmest month of the year, while December is the coldest. Drawn from station USW00023237, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.

Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Stockton Metro sees about 13.4 inches of precipitation a year, predominantly as rainfall. The frost-free season averages 298 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near February 6 and the first fall freeze near December 1. On the energy side, 2,260 heating degree days and 1,566 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Stockton Metro scores 82/100 (Excellent), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, July-driven heat peaks in summer, and December-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.

Frequently Asked Questions

What is the average temperature in Stockton Metro, CA?
The average annual temperature in Stockton Metro, California is 63°F. The warmest month averages 95°F (35°C) and the coldest averages 38°F (4°C).
How much rain does Stockton Metro get?
Stockton Metro receives 13.4 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Stockton Metro?
Stockton Metro has a climate comfort score of 82/100 (Excellent), milder than 83% of U.S. cities in the PlainClimate database.
When is the growing season in Stockton Metro?
Stockton Metro has approximately 298 frost-free days per year, with the last spring freeze around February 6 and the first fall freeze around December 1.
How much energy does heating and cooling require in Stockton Metro?
Stockton Metro has 2,260 heating degree days and 1,566 cooling degree days annually, a fairly balanced heating/cooling split. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Stockton Metro climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00023237 near Stockton Metro.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00023237. For informational purposes only.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial

Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.