Climate Comfort Score
64/100
Good
NOAA 1991–2020 normals 53°F annual avg Public-domain federal data
Alton, KS Climate
Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →
- 53°F
- Avg annual temp
- 64/100
- Comfort score
- 28.6"
- Annual precip
- 166d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Alton
Alton, Kansas averages 53°F a year and scores 64/100 on the comfort index - good, milder than 51% of U.S. cities.
- 53°F
- yearly average temperature, NOAA normal
- 64/100
- comfort score, milder than 51% of U.S. cities
- 28.6"
- annual precipitation · 18" snow
- 166 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
53°F (12°C)
Avg High
68°F
Avg Low
39°F
Annual Precip
28.6"
Annual Snow
17.6"
Comfort Score
64/100
Good
Avg Annual Temperature
53°F
30-year mean (NOAA NCEI)
Annual Precipitation
28.6"
Plus 17.6" of snow
Comfort score vs national 100-point ceiling (Alton) 64.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Alton area.
How Alton compares to every U.S. city
Alton'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 Alton
MethodologyThe chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Alton, the NOAA 1991-2020 normal captures average conditions across that spread - notably, the most recent decade runs warmer than the 30-year mean itself.
- 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 | 42°F (5°C) | 14°F (-10°C) | 28°F (-2°C) | 0.7" | 3.8" | 30.7 | 0.0 |
| February | 46°F (8°C) | 18°F (-8°C) | 32°F (0°C) | 0.7" | 4.8" | 26.3 | 0.0 |
| March | 57°F (14°C) | 27°F (-3°C) | 42°F (5°C) | 1.6" | 2.0" | 22.7 | 0.0 |
| April | 67°F (19°C) | 36°F (2°C) | 51°F (11°C) | 2.3" | 1.2" | 10.5 | 0.6 |
| May | 76°F (25°C) | 48°F (9°C) | 62°F (17°C) | 4.2" | 0.0" | 1.7 | 3.5 |
| June | 88°F (31°C) | 60°F (15°C) | 74°F (23°C) | 3.5" | 0.0" | 0.0 | 11.7 |
| July | 93°F (34°C) | 65°F (19°C) | 79°F (26°C) | 4.9" | 0.0" | 0.0 | 20.1 |
| August | 91°F (33°C) | 63°F (17°C) | 77°F (25°C) | 3.9" | 0.0" | 0.0 | 17.9 |
| September | 83°F (28°C) | 53°F (12°C) | 68°F (20°C) | 2.6" | 0.0" | 0.6 | 8.9 |
| October | 70°F (21°C) | 39°F (4°C) | 55°F (13°C) | 2.1" | 0.4" | 8.5 | 1.8 |
| November | 56°F (13°C) | 26°F (-3°C) | 41°F (5°C) | 1.2" | 2.1" | 23.6 | 0.0 |
| December | 44°F (7°C) | 18°F (-8°C) | 31°F (-1°C) | 0.9" | 3.3" | 30.2 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 0.7"
Snow: 3.8"
4.3 days with precipitation
February 0.7"
Snow: 4.8"
4.5 days with precipitation
March 1.6"
Snow: 2.0"
5.9 days with precipitation
April 2.3"
Snow: 1.2"
8.3 days with precipitation
May 4.2"
10.7 days with precipitation
June 3.5"
9.5 days with precipitation
July 4.9"
9.5 days with precipitation
August 3.9"
8.6 days with precipitation
September 2.6"
5.5 days with precipitation
October 2.1"
Snow: 0.4"
6.2 days with precipitation
November 1.2"
Snow: 2.1"
4.7 days with precipitation
December 0.9"
Snow: 3.3"
3.3 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 12
50% probability date
Last Spring Freeze
April 29
50% probability date
Growing Season
166 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,584
Higher = more heating needed
Cooling Degree Days
1,334
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Alton's climate means for you
Alton runs 53°F a year - peaking in July, coldest in January.
- Gardeners get about 166 frost-free days, with the last spring freeze near April 29 - plan the planting calendar around it, not the regional average.
- Energy bills track 5,584 heating and 1,334 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: Alton, KS
An annual average temperature of 53°F, ranging from a mean daily high of 68°F to a mean daily low of 39°F is what the NOAA 1991–2020 climate normals report for Alton, Kansas. July is typically the warmest month of the year, while January is the coldest. That baseline comes from station USC00140201 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.
Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Alton sees about 28.6 inches of precipitation a year, with 17.6 inches typically falling as snow. The frost-free season averages 166 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 29 and the first fall freeze near October 12. On the energy side, 5,584 heating degree days and 1,334 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Alton scores 64/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows, shoulder seasons for mild highs and lows, peak summer for July-driven heat, or deep winter for January-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.
Frequently Asked Questions
What is the average temperature in Alton, KS? ▼
The average annual temperature in Alton, Kansas is 53°F. The warmest month averages 93°F (34°C) and the coldest averages 14°F (-10°C).
How much rain does Alton get? ▼
Alton receives 28.6 inches of precipitation annually, including 17.6 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Alton? ▼
Alton 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 Alton? ▼
Alton has approximately 166 frost-free days per year, with the last spring freeze around April 29 and the first fall freeze around October 12.
How much energy does heating and cooling require in Alton? ▼
Alton has 5,584 heating degree days and 1,334 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 Alton climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00140201 near Alton.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00140201. 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.