Climate and monthly weather forecast
Rockford, IA

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Weather in January

January, like December, is another subzero cold winter month in Rockford, Iowa, with an average temperature varying between 22.5°F (-5.3°C) and 10°F (-12.2°C). Rockford's temperature records reveal January as the coldest month, marked by average highs of 22.5°F (-5.3°C) and lows of 10°F (-12.2°C). Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Rockford, Iowa, with an average temperature fluctuating between 26.6°F (-3°C) and 13.5°F (-10.3°C). Rockford's weather in February indicates an average high-temperature of a still freezing cold 26.6°F (-3°C), nearly consistent with the 22.5°F (-5.3°C) of January. Weather in February »

Weather in March

March, the first month of the spring in Rockford, is an icy month, with temperature in the range of an average high of 41.5°F (5.3°C) and an average low of 27.7°F (-2.4°C). A shift in Rockford's weather is noticeable as February turns into March, with the average high temperature increases from a subzero cold 26.6°F (-3°C) to an icy 41.5°F (5.3°C). Weather in March »

Weather in April

April in Rockford, Iowa, is a cool spring month, with an average temperature varying between 54.9°F (12.7°C) and 39.4°F (4.1°C). The shift into April brings an increase in the average high-temperature, moving from an icy 41.5°F (5.3°C) in March to a fresh 54.9°F (12.7°C). Weather in April »

Weather in May

May, the last month of the spring in Rockford, is an enjoyable month, with temperature in the range of an average low of 50.5°F (10.3°C) and an average high of 66.9°F (19.4°C). As May sets, the average high-temperature shows an increase, moving up from a fresh 54.9°F (12.7°C) in April to a refreshing 66.9°F (19.4°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Rockford, Iowa, with an average temperature fluctuating between 60.6°F (15.9°C) and 76.8°F (24.9°C). The onset of June marks an increase in the average high-temperature, moving from an enjoyable 66.9°F (19.4°C) in May to a warm 76.8°F (24.9°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Rockford, Iowa, with an average temperature varying between 62.6°F (17°C) and 79.3°F (26.3°C). In Rockford, Iowa, the highest average temperatures are observed in July, with a high of 79.3°F (26.3°C) and a low of 62.6°F (17°C). Weather in July »

Weather in August

August, the last month of the summer in Rockford, is also a moderately hot month, with an average temperature fluctuating between 77.5°F (25.3°C) and 59.9°F (15.5°C). August's onset records an average high-temperature of a still moderately hot 77.5°F (25.3°C), a near match to July's 79.3°F (26.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Rockford, Iowa, with an average temperature ranging between min 53.4°F (11.9°C) and max 72.5°F (22.5°C). September's onset records a minor alteration in the average high-temperature to a pleasant 72.5°F (22.5°C) from August's 77.5°F (25.3°C). Weather in September »

Weather in October

October, like September, is a moderate autumn month in Rockford, Iowa, with temperature in the range of an average low of 42.6°F (5.9°C) and an average high of 57.6°F (14.2°C). October's arrival is marked by a notable drop in high-temperatures, falling from a pleasant 72.5°F (22.5°C) in September to a refreshing 57.6°F (14.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Rockford, Iowa, with temperature in the range of an average low of 30.2°F (-1°C) and an average high of 42.8°F (6°C). Rockford witnesses a significant decrease in the average high-temperature with the arrival of November, falling from October's mild 57.6°F (14.2°C) to a frosty 42.8°F (6°C). Weather in November »

Weather in December

December, the first month of the winter in Rockford, is also a subzero cold month, with temperature in the range of an average low of 18°F (-7.8°C) and an average high of 28.4°F (-2°C). December signals a considerable drop in Rockford's average high-temperature, reducing from a chilly 42.8°F (6°C) in November to a subzero cold 28.4°F (-2°C). Weather in December »
Updated: Feb 12, 2024 | Published by: Weather U.S. | About Us

Frequently asked questions

What are the coldest months in Rockford?

Rockford's coldest temperatures are experienced in January, with average high temperatures of 22.5°F (-5.3°C) and lows of 10°F (-12.2°C).

What is the most humid month in Rockford?

With an average relative humidity of 89%, January is the most humid month in Rockford.

What is the driest month in Rockford?

January is the month with the least rainfall. Rain falls for 3.8 days and accumulates 0.94" (24mm) of precipitation.

How many days does it rain in Rockford?

In Rockford, during the entire year, the rain falls for 129.5 days and collects up to 25.98" (660mm) of precipitation.

When does it snow in Rockford?

Months with snowfall in Rockford, Iowa, are January through May, October through December.

How many days does it snow in Rockford?

In Rockford, Iowa, during the entire year, snow falls for 50.1 days and aggregates up to 21.69" (551mm) of snow.

What is the month with the least sunshine in Rockford?

January has the least sunshine of the year, with an average of 3.6h of sunshine.

What is the month with the lowest UV index in Rockford?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Rockford, Iowa.

When does it snow the most in Rockford?

The month with the most snowfall in Rockford is February, when snow falls for 10.7 days and typically aggregates up to 5.94" (151mm) of snow.

When is Daylight Saving Time (DST) in Rockford?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Rockford, 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 Rockford?

June is the month with the most rainfall in Rockford. Rain falls for 17.8 days and accumulates 3.98" (101mm) of precipitation.

When it does not snow in Rockford?

In Rockford, snow does not fall in June through September.

When are the longest days in Rockford?

The month with the longest days in Rockford is June, with an average of 15h and 18min of daylight.

What are the months with the highest UV index in Rockford?

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

What is the warmest month in Rockford?

Rockford's warmest month, July, registers temperatures that range from a high of 79.3°F (26.3°C) to a low of 62.6°F (17°C).

What are the months with the most sunshine in Rockford?

The months with the most sunshine in Rockford, Iowa, are July and August, with an average of 9.7h of sunshine.

What is the least humid month in Rockford?

October is the least humid month, with an average relative humidity of 71%.

What is the month with the shortest days in Rockford?

The month with the shortest days is December, with an average of 9h and 6min of daylight.

Average temperature
Rockford, IA

Average temperature - Rockford, IA

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.5°F).

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (10°F).

Average pressure
Rockford, IA

Average pressure - Rockford, IA

The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed
Rockford, IA

Average wind speed - Rockford, IA

The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).

Average humidity
Rockford, IA

Average humidity - Rockford, IA

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (71%).

Average rainfall
Rockford, IA

Average rainfall - Rockford, IA

The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (0.94").

Average rainfall days
Rockford, IA

Average rainfall days - Rockford, IA

The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (3 days).

Average snowfall
Rockford, IA

Average snowfall - Rockford, IA

The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Rockford, IA

Average snowfall days - Rockford, IA

The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Rockford, IA

Average daylight / Average sunshine - Rockford, IA

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).

The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days
Rockford, IA

Average sunshine days - Rockford, IA

The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is June (10.5 days).

Average visibility
Rockford, IA

Average visibility - Rockford, IA

The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).

Rockford, Iowa, USA

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