Climate Comfort Score
78/100
Good
NOAA 1991–2020 normals 58°F annual avg Public-domain federal data
ST Louis Sci Ctr, MO Climate
Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →
- 58°F
- Avg annual temp
- 78/100
- Comfort score
- 43.9"
- Annual precip
- 217d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for ST Louis Sci Ctr
ST Louis Sci Ctr, Missouri averages 58°F a year and scores 78/100 on the comfort index - good, milder than 74% of U.S. cities.
- 58°F
- yearly average temperature, NOAA normal
- 78/100
- comfort score, milder than 74% of U.S. cities
- 43.9"
- precipitation, annual total
- 217 days
- frost-free days per growing season
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
58°F (14°C)
Avg High
67°F
Avg Low
49°F
Annual Precip
43.9"
Comfort Score
78/100
Good
Avg Annual Temperature
58°F
30-year mean (NOAA NCEI)
Annual Precipitation
43.9"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (ST Louis Sci Ctr) 78.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the ST Louis Sci Ctr area.
How ST Louis Sci Ctr compares to every U.S. city
ST Louis Sci Ctr's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
78 Top 26% higher than 74% 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 ST Louis Sci Ctr
MethodologySince 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. ST Louis Sci Ctr'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 | 41°F (5°C) | 25°F (-4°C) | 33°F (0°C) | 2.7" | 23.5 | 0.0 |
| February | 46°F (8°C) | 28°F (-2°C) | 37°F (3°C) | 2.3" | 18.4 | 0.0 |
| March | 56°F (13°C) | 38°F (3°C) | 47°F (8°C) | 3.6" | 9.7 | 0.0 |
| April | 68°F (20°C) | 48°F (9°C) | 58°F (14°C) | 4.8" | 1.4 | 0.2 |
| May | 77°F (25°C) | 59°F (15°C) | 68°F (20°C) | 4.9" | 0.0 | 2.1 |
| June | 86°F (30°C) | 67°F (20°C) | 77°F (25°C) | 4.7" | 0.0 | 10.2 |
| July | 90°F (32°C) | 72°F (22°C) | 81°F (27°C) | 4.2" | 0.0 | 15.9 |
| August | 89°F (31°C) | 70°F (21°C) | 79°F (26°C) | 3.8" | 0.0 | 13.1 |
| September | 82°F (28°C) | 62°F (17°C) | 72°F (22°C) | 3.4" | 0.0 | 5.1 |
| October | 70°F (21°C) | 50°F (10°C) | 60°F (16°C) | 3.2" | 0.3 | 0.3 |
| November | 56°F (13°C) | 39°F (4°C) | 48°F (9°C) | 3.7" | 7.7 | 0.0 |
| December | 45°F (7°C) | 30°F (-1°C) | 37°F (3°C) | 2.6" | 18.4 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 2.7"
February 2.3"
March 3.6"
April 4.8"
May 4.9"
June 4.7"
July 4.2"
August 3.8"
September 3.4"
October 3.2"
November 3.7"
December 2.6"
Frost Dates & Growing Season
First Fall Freeze
November 4
50% probability date
Last Spring Freeze
April 1
50% probability date
Growing Season
217 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,292
Higher = more heating needed
Cooling Degree Days
1,769
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What ST Louis Sci Ctr's climate means for you
ST Louis Sci Ctr runs 58°F a year - peaking in July, coldest in January.
- Gardeners get about 217 frost-free days, with the last spring freeze near April 1 - plan the planting calendar around it, not the regional average.
- Energy bills track 4,292 heating and 1,769 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: ST Louis Sci Ctr, MO
In ST Louis Sci Ctr, Missouri, the NOAA 1991–2020 climate normals put the annual average temperature at 58°F, ranging from a mean daily high of 67°F to a mean daily low of 49°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00237452, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. ST Louis Sci Ctr sees about 43.9 inches of precipitation a year, predominantly as rainfall. The frost-free season averages 217 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 1 and the first fall freeze near November 4. On the energy side, 4,292 heating degree days and 1,769 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, ST Louis Sci Ctr scores 78/100 (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 ST Louis Sci Ctr, MO? ▼
The average annual temperature in ST Louis Sci Ctr, Missouri is 58°F. The warmest month averages 90°F (32°C) and the coldest averages 25°F (-4°C).
How much rain does ST Louis Sci Ctr get? ▼
ST Louis Sci Ctr receives 43.9 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for ST Louis Sci Ctr? ▼
ST Louis Sci Ctr has a climate comfort score of 78/100 (Good), milder than 74% of U.S. cities in the PlainClimate database.
When is the growing season in ST Louis Sci Ctr? ▼
ST Louis Sci Ctr has approximately 217 frost-free days per year, with the last spring freeze around April 1 and the first fall freeze around November 4.
How much energy does heating and cooling require in ST Louis Sci Ctr? ▼
ST Louis Sci Ctr has 4,292 heating degree days and 1,769 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 ST Louis Sci Ctr climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00237452 near ST Louis Sci Ctr.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00237452. 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.