Climate Comfort Score
59/100
Moderate
NOAA 1991–2020 normals 48°F annual avg Public-domain federal data
Stockton, IL Climate
Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →
- 48°F
- Avg annual temp
- 59/100
- Comfort score
- 38.7"
- Annual precip
- 165d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Stockton
Stockton, Illinois averages 48°F a year and scores 59/100 on the comfort index - moderate, milder than 39% of U.S. cities.
- 48°F
- annual average temperature (NOAA normal)
- 59/100
- comfort score, milder than 39% of U.S. cities
- 38.7"
- annual precipitation · 36" snow
- 165 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
48°F (9°C)
Avg High
58°F
Avg Low
38°F
Annual Precip
38.7"
Annual Snow
35.7"
Comfort Score
59/100
Moderate
Avg Annual Temperature
48°F
30-year mean (NOAA NCEI)
Annual Precipitation
38.7"
Plus 35.7" of snow
Comfort score vs national 100-point ceiling (Stockton) 59.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Stockton area.
How Stockton compares to every U.S. city
Stockton's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
59 Top 61% higher than 39% of 6,915 US cities
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
MethodologyStockton'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.
- 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 28°F (-2°C) | 12°F (-11°C) | 20°F (-7°C) | 1.2" | 10.7" | 29.7 | 0.0 |
| February | 32°F (0°C) | 16°F (-9°C) | 24°F (-4°C) | 1.5" | 8.1" | 26.1 | 0.0 |
| March | 45°F (7°C) | 27°F (-3°C) | 36°F (2°C) | 2.2" | 4.9" | 22.6 | 0.0 |
| April | 59°F (15°C) | 37°F (3°C) | 48°F (9°C) | 3.9" | 1.3" | 8.6 | 0.0 |
| May | 71°F (22°C) | 49°F (9°C) | 60°F (16°C) | 4.1" | 0.1" | 0.6 | 0.7 |
| June | 79°F (26°C) | 59°F (15°C) | 69°F (21°C) | 5.7" | 0.0" | 0.0 | 1.9 |
| July | 82°F (28°C) | 61°F (16°C) | 72°F (22°C) | 4.5" | 0.0" | 0.0 | 2.8 |
| August | 80°F (27°C) | 59°F (15°C) | 70°F (21°C) | 4.2" | 0.0" | 0.0 | 1.5 |
| September | 74°F (23°C) | 51°F (11°C) | 63°F (17°C) | 4.2" | 0.0" | 0.4 | 0.7 |
| October | 62°F (16°C) | 40°F (5°C) | 51°F (10°C) | 3.1" | 0.5" | 6.8 | 0.0 |
| November | 46°F (8°C) | 29°F (-2°C) | 37°F (3°C) | 2.3" | 2.1" | 19.6 | 0.0 |
| December | 33°F (1°C) | 18°F (-8°C) | 26°F (-4°C) | 1.7" | 8.0" | 28.4 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 1.2"
Snow: 10.7"
8.7 days with precipitation
February 1.5"
Snow: 8.1"
8.2 days with precipitation
March 2.2"
Snow: 4.9"
9.7 days with precipitation
April 3.9"
Snow: 1.3"
11.7 days with precipitation
May 4.1"
Snow: 0.1"
12.7 days with precipitation
June 5.7"
11.8 days with precipitation
July 4.5"
9.3 days with precipitation
August 4.2"
9.7 days with precipitation
September 4.2"
9.1 days with precipitation
October 3.1"
Snow: 0.5"
9.4 days with precipitation
November 2.3"
Snow: 2.1"
8.5 days with precipitation
December 1.7"
Snow: 8.0"
9.6 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 9
50% probability date
Last Spring Freeze
April 27
50% probability date
Growing Season
165 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,869
Higher = more heating needed
Cooling Degree Days
654
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Stockton's climate means for you
Stockton runs 48°F a year - peaking in July, coldest in January.
- Gardeners get about 165 frost-free days, with the last spring freeze near April 27 - plan the planting calendar around it, not the regional average.
- Energy bills track 6,869 heating and 654 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, IL
In Stockton, Illinois, the NOAA 1991–2020 climate normals put the annual average temperature at 48°F, ranging from a mean daily high of 58°F to a mean daily low of 38°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00118293, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Anyone planning to live, garden, or travel in Stockton should weigh precipitation alongside temperature: the annual average runs 38.7 inches, with 35.7 inches typically falling as snow. The frost-free season averages 165 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 27 and the first fall freeze near October 9. And on the energy front, 6,869 heating degree days and 654 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 scores 59/100 (Moderate), 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 January-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, IL? ▼
The average annual temperature in Stockton, Illinois is 48°F. The warmest month averages 82°F (28°C) and the coldest averages 12°F (-11°C).
How much rain does Stockton get? ▼
Stockton receives 38.7 inches of precipitation annually, including 35.7 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Stockton? ▼
Stockton has a climate comfort score of 59/100 (Moderate), milder than 39% of U.S. cities in the PlainClimate database.
When is the growing season in Stockton? ▼
Stockton has approximately 165 frost-free days per year, with the last spring freeze around April 27 and the first fall freeze around October 9.
How much energy does heating and cooling require in Stockton? ▼
Stockton has 6,869 heating degree days and 654 cooling degree days annually, a heating-dominated climate. 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 climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00118293 near Stockton.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00118293. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Related
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.