Climate Comfort Score
64/100
Good
NOAA 1991–2020 normals 50°F annual avg Public-domain federal data
Galva, IL Climate
Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →
- 50°F
- Avg annual temp
- 64/100
- Comfort score
- 38.7"
- Annual precip
- 169d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Galva
Galva, Illinois averages 50°F a year and scores 64/100 on the comfort index - good, milder than 51% of U.S. cities.
- 50°F
- yearly average temperature, NOAA normal
- 64/100
- comfort score, milder than 51% of U.S. cities
- 38.7"
- precipitation, annual total
- 169 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
50°F (10°C)
Avg High
60°F
Avg Low
39°F
Annual Precip
38.7"
Comfort Score
64/100
Good
Avg Annual Temperature
50°F
30-year mean (NOAA NCEI)
Annual Precipitation
38.7"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Galva) 64.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Galva area.
How Galva compares to every U.S. city
Galva's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
64 Top 49% higher than 51% 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 Galva
MethodologySince 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Galva's current NOAA 1991-2020 normal sits within that longer spread, and the most recent decade runs 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 | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 30°F (-1°C) | 13°F (-11°C) | 22°F (-6°C) | 1.6" | 29.1 | 0.0 |
| February | 35°F (2°C) | 17°F (-8°C) | 26°F (-3°C) | 1.8" | 25.6 | 0.0 |
| March | 48°F (9°C) | 27°F (-3°C) | 38°F (3°C) | 2.4" | 21.3 | 0.0 |
| April | 61°F (16°C) | 38°F (3°C) | 50°F (10°C) | 4.2" | 7.6 | 0.0 |
| May | 73°F (23°C) | 50°F (10°C) | 61°F (16°C) | 4.8" | 0.5 | 0.5 |
| June | 82°F (28°C) | 60°F (15°C) | 71°F (21°C) | 5.2" | 0.0 | 3.5 |
| July | 84°F (29°C) | 63°F (17°C) | 74°F (23°C) | 3.6" | 0.0 | 5.8 |
| August | 82°F (28°C) | 60°F (16°C) | 71°F (22°C) | 3.7" | 0.0 | 4.0 |
| September | 77°F (25°C) | 52°F (11°C) | 64°F (18°C) | 4.0" | 0.2 | 1.9 |
| October | 64°F (18°C) | 40°F (5°C) | 52°F (11°C) | 2.8" | 6.4 | 0.1 |
| November | 48°F (9°C) | 29°F (-2°C) | 39°F (4°C) | 2.5" | 19.0 | 0.0 |
| December | 36°F (2°C) | 19°F (-7°C) | 27°F (-3°C) | 2.0" | 27.7 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 1.6"
4.9 days with precipitation
February 1.8"
5.3 days with precipitation
March 2.4"
8.0 days with precipitation
April 4.2"
10.1 days with precipitation
May 4.8"
10.2 days with precipitation
June 5.2"
10.4 days with precipitation
July 3.6"
7.5 days with precipitation
August 3.7"
7.6 days with precipitation
September 4.0"
7.3 days with precipitation
October 2.8"
7.6 days with precipitation
November 2.5"
7.1 days with precipitation
December 2.0"
5.6 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 12
50% probability date
Last Spring Freeze
April 26
50% probability date
Growing Season
169 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,470
Higher = more heating needed
Cooling Degree Days
839
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Galva's climate means for you
Galva runs 50°F a year - peaking in July, coldest in January.
- Gardeners get about 169 frost-free days, with the last spring freeze near April 26 - plan the planting calendar around it, not the regional average.
- Energy bills track 6,470 heating and 839 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: Galva, IL
The NOAA 1991–2020 climate normals describe Galva, Illinois as a location with an annual average temperature of 50°F, ranging from a mean daily high of 60°F to a mean daily low of 39°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00113335, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.
Beyond temperature, Galva averages 38.7 inches of precipitation annually, predominantly as rainfall - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 169 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 26 and the first fall freeze near October 12. Turning to energy use, 6,470 heating degree days and 839 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Galva scores 64/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Shoulder seasons bring the mildest highs and lows in the monthly tables above, summer brings July-driven heat, and winter brings January-driven cold - use that rhythm for planning. These figures are thirty-year averages rather than forecasts, so a specific year may still run warmer, cooler, wetter, or drier than what's shown.
Frequently Asked Questions
What is the average temperature in Galva, IL? ▼
The average annual temperature in Galva, Illinois is 50°F. The warmest month averages 84°F (29°C) and the coldest averages 13°F (-11°C).
How much rain does Galva get? ▼
Galva receives 38.7 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Galva? ▼
Galva has a climate comfort score of 64/100 (Good), milder than 51% of U.S. cities in the PlainClimate database.
When is the growing season in Galva? ▼
Galva has approximately 169 frost-free days per year, with the last spring freeze around April 26 and the first fall freeze around October 12.
How much energy does heating and cooling require in Galva? ▼
Galva has 6,470 heating degree days and 839 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 Galva climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00113335 near Galva.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00113335. 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.