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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Superior, Iowa, is another subzero cold winter month, with temperature in the range of an average low of 9.3°F (-12.6°C) and an average high of 22.5°F (-5.3°C). January, marked by an average high-temperature of 22.5°F (-5.3°C) and a low-temperature of 9.3°F (-12.6°C), is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Superior, Iowa, with temperature in the range of an average low of 12.6°F (-10.8°C) and an average high of 25.9°F (-3.4°C). February experiences an average high-temperature of a still freezing cold 25.9°F (-3.4°C), barely different from January's 22.5°F (-5.3°C). Weather in February »
Weather in March
March, the first month of the spring in Superior, is a cold month, with an average temperature fluctuating between 41.5°F (5.3°C) and 27.9°F (-2.3°C). A shift in Superior's weather is noticeable as February turns into March, with the average high temperature increases from a subzero cold 25.9°F (-3.4°C) to a wintry 41.5°F (5.3°C). Weather in March »
Weather in April
April is a cool spring month in Superior, Iowa, with temperature in the range of an average high of 54.9°F (12.7°C) and an average low of 39.2°F (4°C). In Superior, stepping into April brings a temperature increase, moving up from March's cold 41.5°F (5.3°C) to a cool 54.9°F (12.7°C). Weather in April »
Weather in May
May, the last month of the spring in Superior, is a refreshing month, with an average temperature fluctuating between 50.9°F (10.5°C) and 67.6°F (19.8°C). The start of May brings a rise in the average high-temperature, moving from a cool 54.9°F (12.7°C) in April to a comfortable 67.6°F (19.8°C). Weather in May »
Weather in June
June, the first month of the summer in Superior, is a moderately hot month, with an average temperature ranging between min 61°F (16.1°C) and max 77°F (25°C). Superior's weather in June shows a rise in the average high-temperature, moving up from May's comfortable 67.6°F (19.8°C) to a warm 77°F (25°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Superior, Iowa, with an average temperature varying between 80.2°F (26.8°C) and 62.2°F (16.8°C). July, with average temperatures reaching a high of 80.2°F (26.8°C) and a low of 62.2°F (16.8°C), is the warmest month. Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Superior, Iowa, with an average temperature ranging between min 59.5°F (15.3°C) and max 78.3°F (25.7°C). August's advent notes a subtle adjustment in average high-temperature to a still moderately hot 78.3°F (25.7°C) from July. Weather in August »
Weather in September
September, the first month of the autumn in Superior, is still a pleasant month, with temperature in the range of an average high of 72.5°F (22.5°C) and an average low of 53.6°F (12°C). A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a warm 78.3°F (25.7°C) to an agreeable 72.5°F (22.5°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Superior, Iowa, with temperature in the range of an average low of 41.5°F (5.3°C) and an average high of 56.7°F (13.7°C). The onset of October witnesses a clear shift in the average high-temperature, dropping from an agreeable 72.5°F (22.5°C) in September to a moderate 56.7°F (13.7°C). Weather in October »
Weather in November
The last month of the autumn, November, is also an icy month in Superior, Iowa, with an average temperature ranging between max 42.3°F (5.7°C) and min 29.8°F (-1.2°C). Superior in November demonstrates a small temperature transition, adjusting from an average high of a moderate 56.7°F (13.7°C) in October to a wintry 42.3°F (5.7°C). Weather in November »
Weather in December
The first month of the winter, December, is also a subzero cold month in Superior, Iowa, with an average temperature fluctuating between 26.8°F (-2.9°C) and 16.2°F (-8.8°C). The average high-temperature exhibits a considerable decrease in December, dropping from an icy 42.3°F (5.7°C) in November to a freezing cold 26.8°F (-2.9°C). 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
What are the coldest months in Superior?
January is the coldest month, exhibiting average temperatures of 22.5°F (-5.3°C) at the peak and 9.3°F (-12.6°C) at the base.
What is the most humid month in Superior?
With an average relative humidity of 88%, January is the most humid month.
What is the driest month in Superior?
January is the month with the least rainfall in Superior, Iowa. Rain falls for 2.8 days and accumulates 0.83" (21mm) of precipitation.
How many days does it rain in Superior?
Throughout the year, there are 124.6 rainfall days, and 24.37" (619mm) of precipitation is accumulated.
When does it snow in Superior?
Months with snowfall are January through May, October through December.
How many days does it snow in Superior?
In Superior, during the entire year, snow falls for 47.4 days and aggregates up to 21.93" (557mm) of snow.
What is the month with the least sunshine in Superior?
January has the least sunshine of the year in Superior, Iowa, with an average of 3.9h of sunshine.
What is the month with the lowest UV index in Superior?
The months with the lowest UV index are January, February and November, with an average maximum UV index of 1.
When does it snow the most in Superior?
February is the month with the most snowfall in Superior. Snow falls for 8.9 days and accumulates 5.47" (139mm) of snow.
When is Daylight Saving Time (DST) in Superior?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Superior, Iowa, 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.
What is the wettest month in Superior?
June is the month with the most rainfall in Superior. Rain falls for 18.8 days and accumulates 3.9" (99mm) of precipitation.
When it does not snow in Superior?
In Superior, snow does not fall in June through September.
When are the longest days in Superior?
June has the longest days of the year in Superior, with an average of 15h and 24min of daylight.
What are the months with the highest UV index in Superior?
The months with the highest UV index are June and July, with an average maximum UV index of 6.
What is the hottest time of year in Superior?
July, with an average high of 80.2°F (26.8°C) and a low of 62.2°F (16.8°C), signifies the warmest month of the year in Superior, Iowa.
What month has the most sunshine in Superior?
July has the most sunshine of the year, with an average of 10.2h of sunshine.
What is the least humid month in Superior?
October is the least humid month in Superior, Iowa, with an average relative humidity of 68%.
What is the month with the shortest days in Superior?
With an average of 9h and 0min of daylight, December has the shortest days of the year.
Average temperature
Superior, IA
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.5°F).
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).
Average pressure
Superior, 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:
29.94"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:
29.95"Hg - Average pressure in September:
30"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.07"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
Superior, IA
- Average wind speed in January:
11.2mph - Average wind speed in February:
11.2mph - Average wind speed in March:
10.9mph - Average wind speed in April:
11.2mph - Average wind speed in May:
9.8mph - Average wind speed in June:
8.8mph
- Average wind speed in July:
7.8mph - Average wind speed in August:
7.9mph - Average wind speed in September:
9.1mph - Average wind speed in October:
10.6mph - Average wind speed in November:
11mph - Average wind speed in December:
10.9mph
The windiest months (with the highest average wind speed) are January, February and April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity
Superior, IA
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (68%).
Average rainfall
Superior, IA
- Average rainfall in January:
0.83" - Average rainfall in February:
1.02" - Average rainfall in March:
1.65" - Average rainfall in April:
2.76" - Average rainfall in May:
3.35" - Average rainfall in June:
3.9"
- Average rainfall in July:
2.48" - Average rainfall in August:
2.13" - Average rainfall in September:
2.13" - Average rainfall in October:
1.85" - Average rainfall in November:
0.94" - Average rainfall in December:
1.34"
The wettest month (with the highest rainfall) is June (3.9").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days
Superior, IA
- Average rainfall days in January:
2.8 days - Average rainfall days in February:
2.1 days - Average rainfall days in March:
8.8 days - Average rainfall days in April:
14 days - Average rainfall days in May:
17.6 days - Average rainfall days in June:
18.8 days
- Average rainfall days in July:
15.5 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
10.1 days - Average rainfall days in November:
5 days - Average rainfall days in December:
3.6 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (2.1 days).
Average snowfall
Superior, IA
- Average snowfall in January:
3.74" - Average snowfall in February:
5.47" - Average snowfall in March:
4.21" - Average snowfall in April:
2.01" - Average snowfall in May:
0.2" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Superior, IA
- Average snowfall days in January:
10.5 days - Average snowfall days in February:
8.9 days - Average snowfall days in March:
6.8 days - Average snowfall days in April:
3.1 days - Average snowfall days in May:
0.8 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:
1.5 days - Average snowfall days in November:
4.9 days - Average snowfall days in December:
10.9 days
The month with the highest number of snowfall days is December (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Superior, IA
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 3min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 3min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Superior, IA
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
17.6 days - Average sunshine days in March:
16.1 days - Average sunshine days in April:
12.2 days - Average sunshine days in May:
11 days - Average sunshine days in June:
8.6 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
13.9 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
18.1 days - Average sunshine days in November:
20.5 days - Average sunshine days in December:
17.5 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (8.6 days).
Average UV index
Superior, IA
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover
Superior, IA
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
Superior, 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).
Superior, Iowa, USA
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