Climate Comfort Score
67/100
Good
2026 data Public-data reference. official source
Storm Lake, IA Climate
Temperature, precipitation, and comfort score from NOAA NCEI 1991-2020 normals →
30-year climate normals from 1 weather station (1991-2020).
Storm Lake, Iowa has an average annual temperature of 47°F and a climate comfort score of 67/100 (Good). Annual precipitation totals 33.8". Based on NOAA 30-year normals (1991–2020).
Avg Temperature
47°F (8°C)
Avg High
57°F
Avg Low
38°F
Annual Precip
33.8"
Comfort Score
67/100
Good
Avg Annual Temperature
47°F
30-year mean (NOAA NCEI)
Annual Precipitation
33.8"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Storm Lake) 67.0%
National median (≈55)
PlainClimate composite — temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Storm Lake area.
Warming context for Storm Lake
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Storm Lake captures average conditions across the spread shown — the most recent decade is 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 | 26°F (-3°C) | 9°F (-13°C) | 17°F (-8°C) | 0.8" | 30.6 | 0.0 |
| February | 30°F (-1°C) | 13°F (-10°C) | 22°F (-6°C) | 1.0" | 26.9 | 0.0 |
| March | 43°F (6°C) | 25°F (-4°C) | 34°F (1°C) | 1.7" | 23.9 | 0.0 |
| April | 58°F (15°C) | 37°F (3°C) | 48°F (9°C) | 3.5" | 9.8 | 0.1 |
| May | 69°F (21°C) | 49°F (10°C) | 59°F (15°C) | 4.9" | 0.7 | 0.8 |
| June | 79°F (26°C) | 60°F (16°C) | 70°F (21°C) | 5.3" | 0.0 | 2.4 |
| July | 82°F (28°C) | 64°F (18°C) | 73°F (23°C) | 3.8" | 0.0 | 4.3 |
| August | 80°F (27°C) | 61°F (16°C) | 71°F (21°C) | 4.4" | 0.0 | 1.8 |
| September | 74°F (23°C) | 53°F (11°C) | 63°F (17°C) | 3.0" | 0.3 | 1.0 |
| October | 61°F (16°C) | 40°F (4°C) | 50°F (10°C) | 2.4" | 7.5 | 0.1 |
| November | 44°F (7°C) | 27°F (-3°C) | 36°F (2°C) | 1.8" | 21.5 | 0.0 |
| December | 31°F (0°C) | 15°F (-9°C) | 23°F (-5°C) | 1.1" | 29.8 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 0.8"
February 1.0"
March 1.7"
April 3.5"
May 4.9"
June 5.3"
July 3.8"
August 4.4"
September 3.0"
October 2.4"
November 1.8"
December 1.1"
Frost Dates & Growing Season
First Fall Freeze
October 13
50% probability date
Last Spring Freeze
April 25
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,230
Higher = more heating needed
Cooling Degree Days
754
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Related Data
PlainEnviro
EPA environmental data — pollution, water quality, and environmental health by location
PlainCarbon
Carbon emissions data — greenhouse gas reporting and facility-level CO2 data
PlainHazard
Natural disaster data — weather-related hazards, FEMA declarations, and risk profiles
PlainAirData
EPA air quality data — AQI readings, pollutant levels, and air quality trends
Climate Guides
Climate Insight: Storm Lake, IA
The NOAA 1991–2020 climate normals describe Storm Lake, Iowa as a location with an annual average temperature of 47°F, ranging from a mean daily high of 57°F to a mean daily low of 38°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00137979, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.
Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Storm Lake receives roughly 33.8 inches of precipitation each year, predominantly as rainfall. Growing-season length varies with elevation and microclimate, with the last spring freeze near April 25 and the first fall freeze near October 13. For energy use, 7,230 heating degree days and 754 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Storm Lake scores 67/100 (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 Storm Lake, IA? ▼
The average annual temperature in Storm Lake, Iowa is 47°F. The warmest month averages 82°F (28°C) and the coldest averages 9°F (-13°C).
How much rain does Storm Lake get? ▼
Storm Lake receives 33.8 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Storm Lake? ▼
Storm Lake has a climate comfort score of 67/100 (Good). This score considers temperature mildness, humidity, precipitation, and extreme weather frequency.
When is the growing season in Storm Lake? ▼
Growing season data is not available for Storm Lake.
How much energy does heating and cooling require in Storm Lake? ▼
Storm Lake has 7,230 heating degree days and 754 cooling degree days annually. Higher heating degree days indicate greater winter energy demand, while higher cooling degree days indicate greater summer cooling needs.
Where does this Storm Lake climate data come from? ▼
All climate data comes from NOAA U.S. Climate Normals v1.0.1, covering the 30-year period from 1991 to 2020. Data is collected from weather station USC00137979. These 30-year averages are the standard reference for typical weather conditions.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00137979. 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
