Climate and monthly weather forecast
Rockwell City, IA

Weather in January

January, like December, is another subzero cold winter month in Rockwell City, Iowa, with an average temperature fluctuating between 25.2°F (-3.8°C) and 12.7°F (-10.7°C). With an average high-temperature of 25.2°F (-3.8°C) and an average low-temperature of 12.7°F (-10.7°C), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Rockwell City, is another freezing cold month, with an average temperature fluctuating between 29.1°F (-1.6°C) and 16.2°F (-8.8°C). In February, the average high-temperature is almost the same as in January - a still freezing cold 29.1°F (-1.6°C). Weather in February »

Weather in March

March, the first month of the spring in Rockwell City, is a chilly month, with an average temperature ranging between max 45.1°F (7.3°C) and min 30.6°F (-0.8°C). In Rockwell City, the average high-temperature in March increases considerably from a subzero cold 29.1°F (-1.6°C) in February to a chilly 45.1°F (7.3°C). Weather in March »

Weather in April

April is a mild spring month in Rockwell City, Iowa, with temperature in the range of an average high of 57.7°F (14.3°C) and an average low of 41.4°F (5.2°C). In April, the average high-temperature increases from a chilly 45.1°F (7.3°C) in March to a mild 57.7°F (14.3°C). Weather in April »

Weather in May

May, the last month of the spring in Rockwell City, is a pleasant month, with an average temperature ranging between min 53.1°F (11.7°C) and max 69.3°F (20.7°C). In Rockwell City, the average high-temperature in May rises from a moderate 57.7°F (14.3°C) in April to a pleasant 69.3°F (20.7°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Rockwell City, Iowa, with an average temperature fluctuating between 79.2°F (26.2°C) and 62.4°F (16.9°C). In Rockwell City, the average high-temperature in June rises from a pleasant 69.3°F (20.7°C) in May to a moderately hot 79.2°F (26.2°C). Weather in June »

Weather in July

July, like June, in Rockwell City, Iowa, is a moderately hot summer month, with an average temperature fluctuating between 64°F (17.8°C) and 81.1°F (27.3°C). July is the warmest month, with an average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 64°F (17.8°C). In July, the average heat index is estimated at a hot 86.9°F (30.5°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Rockwell City, Iowa, with temperature in the range of an average low of 61.2°F (16.2°C) and an average high of 79.2°F (26.2°C). In Rockwell City, the average high-temperature in August is essentially the same as in July - a still moderately hot 79.2°F (26.2°C). Weather in August »

Weather in September

September, the first month of the autumn in Rockwell City, is still a warm month, with temperature in the range of an average low of 55.2°F (12.9°C) and an average high of 74.3°F (23.5°C). In Rockwell City, the average high-temperature in September is essentially the same as in August - a still moderately hot 74.3°F (23.5°C). Weather in September »

Weather in October

October, like September, is a moderate autumn month in Rockwell City, Iowa, with an average temperature fluctuating between 59°F (15°C) and 43.7°F (6.5°C). In Rockwell City, the average high-temperature in October significantly decreases from a moderately hot 74.3°F (23.5°C) in September to a moderate 59°F (15°C). Weather in October »

Weather in November

November, the last month of the autumn in Rockwell City, is also a frosty month, with temperature in the range of an average high of 45°F (7.2°C) and an average low of 31.6°F (-0.2°C). In November, the average high-temperature drops from a mild 59°F (15°C) in October to a chilly 45°F (7.2°C). Weather in November »

Weather in December

December, the first month of the winter in Rockwell City, is still a freezing cold month, with an average temperature fluctuating between 19.6°F (-6.9°C) and 30.7°F (-0.7°C). In December, the average high-temperature decreases from a frosty 45°F (7.2°C) in November to a freezing cold 30.7°F (-0.7°C). Weather in December »
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FAQ

What is the coldest month in Rockwell City?

With an average high-temperature of 25.2°F (-3.8°C) and an average low-temperature of 12.7°F (-10.7°C), January is the coldest month.

What is the most humid month in Rockwell City?

The most humid month in Rockwell City, Iowa, is January, with an average relative humidity of 85%.

What is the driest month in Rockwell City?

January is the month with the least rainfall in Rockwell City. Rain falls for 4 days and accumulates 0.91" (23mm) of precipitation.

How many days does it rain in Rockwell City?

Throughout the year, in Rockwell City, Iowa, there are 128 rainfall days, and 26.18" (665mm) of precipitation is accumulated.

When does it snow in Rockwell City?

January through May, October through December are months with snowfall in Rockwell City, Iowa.

How much does it snow in Rockwell City?

Throughout the year, there are 39.2 snowfall days, and 17.64" (448mm) of snow is accumulated.

What is the month with the least sunshine in Rockwell City?

With an average of 4.1h of sunshine, January has the least sunshine of the year.

When does it snow the most in Rockwell City?

February is the month with the most snowfall in Rockwell City, Iowa. Snow falls for 9.7 days and accumulates 5.31" (135mm) of snow.

When is the lowest UV index in Rockwell City?

With an average maximum UV index of 1, February is the month with the lowest UV index in Rockwell City.

When is Daylight Saving Time (DST) in Rockwell City?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Rockwell City, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from CDT to CST.

What are the least humid months in Rockwell City?

The months with the lowest humidity in Rockwell City are April and October, with an average relative humidity of 68%.

What is the wettest month in Rockwell City?

June is the month with the most rainfall in Rockwell City. Rain falls for 17.6 days and accumulates 3.98" (101mm) of precipitation.

When it does not snow in Rockwell City?

In Rockwell City, snow does not fall in June through September.

When are the longest days in Rockwell City?

The month with the longest days in Rockwell City is June, with an average of 15h and 14min of daylight.

What are the months with the highest UV index in Rockwell City?

June and July, with an average maximum UV index of 6, are months with the highest UV index.

What is the warmest month in Rockwell City?

The warmest month is July, with an average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 64°F (17.8°C).

What month has the most sunshine in Rockwell City?

With an average of 10.3h of sunshine, July has the most sunshine of the year.

What is the month with the shortest days in Rockwell City?

With an average of 9h and 8min of daylight, December has the shortest days of the year in Rockwell City.

Average temperature
Rockwell City, IA

Average temperature - Rockwell City, IA

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (25.2°F).

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).

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Average pressure
Rockwell City, IA

Average pressure - Rockwell City, IA

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed
Rockwell City, IA

Average wind speed - Rockwell City, IA

The windiest months (with the highest average wind speed) are January and April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).

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Average humidity
Rockwell City, IA

Average humidity - Rockwell City, IA

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and October (68%).

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Average rainfall
Rockwell City, IA

Average rainfall - Rockwell City, IA

The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (0.91").

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Average rainfall days
Rockwell City, IA

Average rainfall days - Rockwell City, IA

The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is February (3 days).

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Average snowfall
Rockwell City, IA

Average snowfall - Rockwell City, IA

The month with the highest snowfall is February (5.31").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Rockwell City, IA

Average snowfall days - Rockwell City, IA

The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Rockwell City, IA

Average daylight / Average sunshine - Rockwell City, IA

The month with the longest days is June (Average daylight: 15h and 14min).
The month with the shortest days is December (Average daylight: 9h and 8min).

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days
Rockwell City, IA

Average sunshine days - Rockwell City, IA

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is June (9.9 days).

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Average visibility
Rockwell City, IA

Average visibility - Rockwell City, 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).

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