Climate and monthly weather forecastStorm Lake, IA
Climate and monthly weather forecast
The climate of Storm Lake
A perfect example of the Köppen climate classification Dfa, Storm Lake, Iowa, can be characterized as experiencing a humid continental climate with no dry season and hot summers. This climatological classification is typically found in the mid-latitudes, frequently in regions that are positioned inland and are therefore not affected significantly by coastal maritime influences.Throughout the year, the weather in Storm Lake exhibits wide swings in many parameters. The temperature varies substantially from a cold 12.6°F (-10.8°C) in the winter to a hot 81.3°F (27.4°C) in the summer. Monthly rainfall also varies greatly, with the heaviest precipitation in May, amounting to an average of 4.02" (102mm). Meanwhile, January and February are the most humid months, with relative humidity percentages of 85% and 83% respectively.
Perhaps one of the most distinctive patterns in Storm Lake's weather is how rainfall and snowfall amounts vary throughout the year. Although the winter months do see a significant amount of precipitation in the form of snow, the summer months, from June through August, experience virtually no snowfall. This seasonal variation in precipitation type is characteristic of locations in the humid continental climate zone.
The best time to visit Storm Lake
Storm Lake boasts of pleasant weather during the late spring and early summer months. The temperature in May averages from 52.3°F (11.3°C) to 68.9°F (20.5°C), offering an agreeable climate for outdoor activities. Moreover, this period observes one of the highest daily sunshine durations, peaking at 8.7h in May. Despite the high rainfall during this month, the increased sunshine and warm temperature significantly enhance the overall weather experience.The worst time to visit Storm Lake
January is arguably the least attractive month for visiting Storm Lake, due to harsh winter temperatures. With average high temperatures barely exceeding 24.6°F (-4.1°C) and low temperatures plunging to a chilly 12.6°F (-10.8°C), outdoor activities can be significantly limited. Moreover, January also sees considerable snowfall, averaging at 4.65" (118mm), further intensifying the frigid conditions.Spring weather in Storm Lake
Spring in Storm Lake witnesses a considerable elevation in temperature from a low of 30.6°F (-0.8°C) in March to a moderate 52.3°F (11.3°C) in May. Concurrently, the precipitation transitions from snow to rain with rainfall increasing from 1.57" (40mm) in March to 3.9" (99mm) in May. Sunshine hours also increase during this season, rising from 6.2h in March to a comfortable 8.7h in May.Summer weather in Storm Lake
From June to August, Storm Lake experiences its summer season. Temperatures escalate considerably during this time, peaking at an average high of 81.3°F (27.4°C) in July. Rainfall hovers around the 4-inch mark and then falls to 2.24" (57mm) by July. On the brighter side, this season boasts the longest daylight hours with a peak of 15.3h in June.Autumn weather in Storm Lake
Temperatures in Autumn gradually decline, with September seeing average highs of 73.9°F (23.3°C) that dwindle to 44.2°F (6.8°C) by November. Rainfall observes a similar pattern, shrinking from 2.32" (59mm) in September to a mere 1.06" (27mm) by November. Nevertheless, autumn offers considerable daylight, starting at 11h in October and still maintaining 9.8h by November.Winter weather in Storm Lake
Winter in Storm Lake is characterized by low temperatures, reduced daylight hours, and significant snowfall. Temperatures drop from 29.3°F (-1.5°C) in December to a frigid low of 12.6°F (-10.8°C) in January. Snowfall is also high during this season, averaging around 5.79" (147mm) in December and reducing to 2.76" (70mm) by February. Daylight hours, however, remain shorter, with only 9.1h recorded in December.Weather in January
Kickstarting the new year, Storm Lake, Iowa paints a picture of a typical Midwestern winter. The chill persists as temperatures remain low and snowfall is notable. Amongst the hushed white landscape, 0.51" (13mm) to 0.98" (25mm) temperature range prevails and approximately 4.65" (118mm) of snow grace the city. Weather in January »Weather in February
Carrying forward the baton from January, February does not disappoint winter enthusiasts in Storm Lake, Iowa. Slightly higher temperatures offer minor relief but snow continues to dust the streets, albeit less compared to January. Weather in February »Weather in March
A change in scenery unfolds in Storm Lake, Iowa as March witnesses the onset of spring. Sweeping away the winter residue, warmer melts initiate a marked shift in the weather pattern. The temperature notably increases, moving from 1.22" (31mm) to 1.77" (45mm), a noticeable bump compared to February. Weather in March »Weather in April
April brings rejuvenation to Storm Lake, Iowa with temperatures that encourage outdoor activities. The earlier snow melt paves the way for greener pastures and an influx of flora and fauna. A clear increase in temperature from 1.61" (41mm) to 2.24" (57mm) characterizes April’s identity, making it a stark contrast to the previous months. Weather in April »Weather in May
May, in Storm Lake, Iowa, symbolizes the height of spring. With the harshness of winter long gone, blue skies and balmy winds reign supreme. The overall weather can be described as moderate with temperatures stretching from 2.05" (52mm) to 2.72" (69mm). Weather in May »Weather in June
June welcomes summer in its full glory in Storm Lake, Iowa. As it marches ahead with increasing temperatures, the likelihood of rainfall also escalates. June sees temperatures reach a high from 2.44" (62mm) to 3.07" (78mm), providing the perfect groundwork for outdoor summer activities. Weather in June »Weather in July
As the midpoint of the year, July typifies summer days in Storm Lake, Iowa. The sun, at its zenith, ensures warm, longer days and short nights. July witnesses the peak of summer with temperatures hitting between 2.52" (64mm) to 3.19" (81mm). Weather in July »Weather in August
As the summer season advances, August carries forward the legacy of warmth in Storm Lake, Iowa. Though it starts to pull the reins on the soaring mercury levels slightly, the sun-filled days persist. Temperatures during August vary from 2.4" (61mm) to 3.11" (79mm), signaling a very subtle initiation of autumn’s approach. Weather in August »Weather in September
September is a time of change in Storm Lake, Iowa, as summer gives way to the colors of fall. The cooler breeze starts weaving its way through the city, indicating the gradual arrival of autumn. The temperature drops and ranges between 2.17" (55mm) to 2.91" (74mm), marking a noticeable shift from the highs of August. Weather in September »Weather in October
October is synonymous with the full bloom of fall in Storm Lake, Iowa. It says goodbye to any remaining summer heat and welcomes cooler days and chilly nights. This autumn month sees a significant temperature reduction, marking a shift from 1.69" (43mm) to 2.28" (58mm). Weather in October »Weather in November
November in Storm Lake, Iowa introduces the community to the initial winter chills as temperatures drop substantially. The fall foliage starts to disintegrate, and early snowfall can be encountered towards the month's end. The weather during November records temperatures from 1.26" (32mm) to 1.73" (44mm), continuing the cooling trend. Weather in November »Weather in December
Rounding off the year, December in Storm Lake, Iowa takes residents into the cozy winter wonderland. With a stark drop in temperature and possible snowfall, the month mimics the stereotypical imagery of holiday season. The colder climate comes into full effect, with temperatures spanning from 0.75" (19mm) to 1.14" (29mm), setting the tone for the upcoming deep winter month of January. Weather in December »Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January brings the lowest temperatures in Storm Lake, Iowa, with an average high of 24.6°F (-4.1°C) and an average low of 12.6°F (-10.8°C).
The most humid month in Storm Lake is January, with an average relative humidity of 85%.
The month with the least rainfall in Storm Lake is January, when the rain falls for 4.1 days and typically collects 0.91" (23mm) of precipitation.
In Storm Lake, Iowa, during the entire year, the rain falls for 135.1 days and collects up to 26.73" (679mm) of precipitation.
January through May, October through December are months with snowfall in Storm Lake, Iowa.
Throughout the year, there are 50 snowfall days, and 20.04" (509mm) of snow is accumulated.
January has the least sunshine of the year, with an average of 4.1h of sunshine.
The months with the lowest UV index are January and February, with an average maximum UV index of 1.
The month with the most snowfall is February, when snow falls for 10.7 days and typically aggregates up to 5.79" (147mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
The months with the lowest humidity in Storm Lake, Iowa, are April and October, with an average relative humidity of 68%.
June is the month with the most rainfall in Storm Lake. Rain falls for 19 days and accumulates 4.02" (102mm) of precipitation.
In Storm Lake, Iowa, snow does not fall in June through September.
June has the longest days of the year, with an average of 15h and 18min of daylight.
The months with the highest UV index are June and July, with an average maximum UV index of 6.
July is the warmest month, with an average high-temperature of 81.3°F (27.4°C) and an average low-temperature of 64°F (17.8°C).
July has the most sunshine of the year in Storm Lake, with an average of 10.5h of sunshine.
December has the shortest days of the year, with an average of 9h and 6min of daylight.
Average temperature
Storm Lake, IA
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (24.6°F).
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure
Storm Lake, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.15"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed
Storm Lake, IA
- Average wind speed in January:
11.2mph - Average wind speed in February:
11.1mph - Average wind speed in March:
10.8mph - Average wind speed in April:
11.2mph - Average wind speed in May:
9.6mph - Average wind speed in June:
8.7mph
- Average wind speed in July:
7.5mph - Average wind speed in August:
7.7mph - Average wind speed in September:
8.8mph - Average wind speed in October:
10.3mph - Average wind speed in November:
10.8mph - Average wind speed in December:
10.8mph
The windiest months (with the highest average wind speed) are January and April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity
Storm Lake, IA
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and October (68%).
Average rainfall
Storm Lake, IA
- Average rainfall in January:
0.91" - Average rainfall in February:
1.22" - Average rainfall in March:
1.57" - Average rainfall in April:
2.99" - Average rainfall in May:
3.9" - Average rainfall in June:
4.02"
- Average rainfall in July:
2.24" - Average rainfall in August:
2.72" - Average rainfall in September:
2.32" - Average rainfall in October:
2.28" - Average rainfall in November:
1.06" - Average rainfall in December:
1.5"
The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days
Storm Lake, IA
- Average rainfall days in January:
4.1 days - Average rainfall days in February:
3.7 days - Average rainfall days in March:
10.7 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
18.7 days - Average rainfall days in June:
19 days
- Average rainfall days in July:
14.8 days - Average rainfall days in August:
14.3 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
6.9 days - Average rainfall days in December:
5.1 days
The month with the highest number of rainy days is June (19 days).
The month with the least rainy days is February (3.7 days).
Average snowfall
Storm Lake, IA
- Average snowfall in January:
4.65" - Average snowfall in February:
5.79" - Average snowfall in March:
3.07" - Average snowfall in April:
1.77" - Average snowfall in May:
0.28" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.79").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Storm Lake, IA
- Average snowfall days in January:
12.6 days - Average snowfall days in February:
10.7 days - Average snowfall days in March:
7.2 days - Average snowfall days in April:
2.3 days - Average snowfall days in May:
0.3 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
1.4 days - Average snowfall days in November:
4.2 days - Average snowfall days in December:
11.3 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Storm Lake, IA
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 18min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
4h and 6min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 12min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 42min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
9h and 30min - Average sunshine in September:
9h and 6min - Average sunshine in October:
5h and 48min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Storm Lake, IA
- Average sunshine days in January:
16.6 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
11.3 days - Average sunshine days in May:
9.8 days - Average sunshine days in June:
8.1 days
- Average sunshine days in July:
12.9 days - Average sunshine days in August:
13.6 days - Average sunshine days in September:
15.1 days - Average sunshine days in October:
17.8 days - Average sunshine days in November:
18.8 days - Average sunshine days in December:
16.9 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is June (8.1 days).
Average UV index
Storm Lake, IA
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover
Storm Lake, IA
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility
Storm Lake, IA
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
