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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 Swea City, Iowa, is a freezing cold winter month, with an average temperature varying between 22.1°F (-5.5°C) and 9.1°F (-12.7°C). With average high temperatures of 22.1°F (-5.5°C) and lows of 9.1°F (-12.7°C), January is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Swea City, is another freezing cold month, with an average temperature fluctuating between 12.6°F (-10.8°C) and 26.1°F (-3.3°C). The introduction of February sees an average high-temperature of a still subzero cold 26.1°F (-3.3°C), hardly deviating from January. Weather in February »
Weather in March
March, the first month of the spring in Swea City, is a wintry month, with temperature in the range of an average low of 27.5°F (-2.5°C) and an average high of 41.4°F (5.2°C). March is marked by a significant increase, with the average high-temperature advancing from a subzero cold 26.1°F (-3.3°C) in February to a wintry 41.4°F (5.2°C). Weather in March »
Weather in April
April is a cool spring month in Swea City, Iowa, with temperature in the range of an average high of 54.9°F (12.7°C) and an average low of 39.7°F (4.3°C). April sees a rise in the average high-temperature, climbing from a cold 41.4°F (5.2°C) in March to a cool 54.9°F (12.7°C). Weather in April »
Weather in May
May, the last month of the spring in Swea City, is a pleasant month, with temperature in the range of an average high of 68°F (20°C) and an average low of 51.4°F (10.8°C). The rise of average high-temperatures is seen in May, with an increase from a fresh 54.9°F (12.7°C) in April to an agreeable 68°F (20°C). Weather in May »
Weather in June
June, the first month of the summer in Swea City, is a moderately hot month, with an average temperature varying between 61.2°F (16.2°C) and 77.4°F (25.2°C). June sees a rise in the average high-temperature, climbing from an agreeable 68°F (20°C) in May to a moderately hot 77.4°F (25.2°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Swea City, Iowa, with an average temperature ranging between min 63°F (17.2°C) and max 80.2°F (26.8°C). Swea City's warmest weather arrives in July, when temperatures average a high of 80.2°F (26.8°C) and a low of 63°F (17.2°C). Weather in July »
Weather in August
August, the last month of the summer in Swea City, is another warm month, with temperature in the range of an average low of 59.9°F (15.5°C) and an average high of 78.3°F (25.7°C). The onset of August brings with it an average high-temperature of a still warm 78.3°F (25.7°C), showing a negligible variation from the month before. Weather in August »
Weather in September
September, the first month of the autumn in Swea City, is still a pleasant month, with an average temperature fluctuating between 54°F (12.2°C) and 73.2°F (22.9°C). Swea City, Iowa, indicates an average high-temperature of an agreeable 73.2°F (22.9°C) in September, showing minor variation from August's 78.3°F (25.7°C). Weather in September »
Weather in October
October, like September, is another mild autumn month in Swea City, Iowa, with an average temperature ranging between min 42.4°F (5.8°C) and max 57°F (13.9°C). October indicates a noticeable reduction in the average high-temperature, moving down from an agreeable 73.2°F (22.9°C) in September to a refreshing 57°F (13.9°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cold month in Swea City, Iowa, with an average temperature ranging between max 42.4°F (5.8°C) and min 30°F (-1.1°C). November's arrival brings a noticeable temperature shift, dropping from a mild 57°F (13.9°C) in October to a cold 42.4°F (5.8°C). Weather in November »
Weather in December
December, the first month of the winter in Swea City, is also a subzero cold month, with temperature in the range of an average high of 27°F (-2.8°C) and an average low of 16.2°F (-8.8°C). With the onset of December, Swea City experiences a noticeable temperature shift, with the average high-temperature receding from an icy 42.4°F (5.8°C) in November to a subzero cold 27°F (-2.8°C). Weather in December »
Updated: Jun 14, 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 is the coldest month?
The coldest month is January, with an average high-temperature of 22.1°F (-5.5°C) and an average low-temperature of 9.1°F (-12.7°C).
What is the most humid month?
The most humid month in Swea City, Iowa, is January, with an average relative humidity of 89%.
What is the driest month?
The month with the least rainfall is January, when the rain falls for 3.4 days and typically collects 0.87" (22mm) of precipitation.
How many days does it rain?
Throughout the year, there are 130.4 rainfall days, and 24.65" (626mm) of precipitation is accumulated.
When does it snow?
January through May, October through December are months with snowfall.
How many days does it snow?
In Swea City, during the entire year, snow falls for 57.5 days and aggregates up to 23.31" (592mm) of snow.
What is the month with the least sunshine?
With an average of 3.7h of sunshine, January has the least sunshine of the year.
What is the month with the lowest UV index?
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?
February is the month with the most snowfall. Snow falls for 11.8 days and accumulates 6.02" (153mm) of snow.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Swea City, 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?
The month with the most rainfall is June, when the rain falls for 18.8 days and typically aggregates up to 4.02" (102mm) of precipitation.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
With an average of 15h and 24min of daylight, June has the longest days of the year.
What is the month with the highest UV index?
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?
Swea City's warmest month, July, generally records average temperatures ranging from a high of 80.2°F (26.8°C) to a low of 63°F (17.2°C).
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.1h of sunshine.
What is the least humid month?
The least humid month in Swea City is October, with an average relative humidity of 68%.
What is the month with the shortest days?
December has the shortest days of the year in Swea City, with an average of 9h and 0min of daylight.
Average temperature
Swea City, 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 (22.1°F).
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).
Average pressure
Swea City, IA
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.88"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:
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 (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Swea City, IA
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.8mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.7mph - Average wind speed in May:
9.4mph - Average wind speed in June:
8.5mph
- Average wind speed in July:
7.5mph - Average wind speed in August:
7.6mph - Average wind speed in September:
8.8mph - Average wind speed in October:
10.3mph - Average wind speed in November:
10.6mph - Average wind speed in December:
10.3mph
The windiest month (with the highest average wind speed) is February (10.8mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity
Swea City, IA
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (68%).
Average rainfall
Swea City, IA
- Average rainfall in January:
0.87" - Average rainfall in February:
1.14" - Average rainfall in March:
1.57" - Average rainfall in April:
2.68" - Average rainfall in May:
3.35" - Average rainfall in June:
4.02"
- Average rainfall in July:
2.76" - Average rainfall in August:
2.01" - Average rainfall in September:
2.24" - Average rainfall in October:
1.57" - Average rainfall in November:
1.06" - Average rainfall in December:
1.38"
The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days
Swea City, IA
- Average rainfall days in January:
3.4 days - Average rainfall days in February:
3.3 days - Average rainfall days in March:
10.6 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
16.9 days - Average rainfall days in June:
18.8 days
- Average rainfall days in July:
16 days - Average rainfall days in August:
14.5 days - Average rainfall days in September:
10.7 days - Average rainfall days in October:
9.8 days - Average rainfall days in November:
6.7 days - Average rainfall days in December:
5.1 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (3.3 days).
Average snowfall
Swea City, IA
- Average snowfall in January:
4.57" - Average snowfall in February:
6.02" - Average snowfall in March:
3.98" - Average snowfall in April:
2.28" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Swea City, IA
- Average snowfall days in January:
13.9 days - Average snowfall days in February:
11.8 days - Average snowfall days in March:
7.3 days - Average snowfall days in April:
3.2 days - Average snowfall days in May:
0.4 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:
6 days - Average snowfall days in December:
13.4 days
The month with the highest number of snowfall days is January (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Swea City, 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 2min - 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 4min - Average sunshine in February:
4h and 2min - Average sunshine in March:
5h and 5min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 4min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Swea City, IA
- Average sunshine days in January:
15.3 days - Average sunshine days in February:
14.7 days - Average sunshine days in March:
15.2 days - Average sunshine days in April:
12 days - Average sunshine days in May:
11.7 days - Average sunshine days in June:
8.5 days
- Average sunshine days in July:
12.2 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
16.3 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
18.1 days - Average sunshine days in December:
15.3 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is June (8.5 days).
Average UV index
Swea City, 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
Swea City, IA
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are July and September (Cloud cover 31).
Average visibility
Swea City, IA
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Swea City, Iowa, USA
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