Climate and monthly weather forecast
Plano, IA

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Weather in January

January, like December, is a freezing cold winter month in Plano, Iowa, with temperature in the range of an average high of 30.6°F (-0.8°C) and an average low of 16.5°F (-8.6°C). In Plano, the lowest average temperatures are observed in January, with a high of 30.6°F (-0.8°C) and a low of 16.5°F (-8.6°C). Weather in January »

Weather in February

February, the last month of the winter in Plano, is a cold month, with an average temperature fluctuating between 20.1°F (-6.6°C) and 34°F (1.1°C). Plano observes an average high-temperature of a cold 34°F (1.1°C) in February, barely different from 30.6°F (-0.8°C) in January. Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Plano, Iowa, with an average temperature ranging between min 33.4°F (0.8°C) and max 48.7°F (9.3°C). March signals a considerable rise in Plano's average high-temperature, advancing from a cold 34°F (1.1°C) in February to a chilly 48.7°F (9.3°C). Weather in March »

Weather in April

April in Plano, Iowa, is a mild spring month, with an average temperature fluctuating between 42.8°F (6°C) and 60.4°F (15.8°C). April's arrival coincides with a temperature rise, moving from March's frosty 48.7°F (9.3°C) to a mild 60.4°F (15.8°C). Weather in April »

Weather in May

May, the last month of the spring in Plano, is a pleasant month, with an average temperature varying between 53.1°F (11.7°C) and 69.4°F (20.8°C). The beginning of May marks a shift in the average high-temperature, moving from April's mild 60.4°F (15.8°C) to an agreeable 69.4°F (20.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Plano, Iowa, with an average temperature varying between 79.7°F (26.5°C) and 63.1°F (17.3°C). As June arrives, a rise in the average high-temperature is observed, moving from an agreeable 69.4°F (20.8°C) in May to a warm 79.7°F (26.5°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Plano, Iowa, with an average temperature fluctuating between 83.1°F (28.4°C) and 66°F (18.9°C). Plano experiences its highest average temperatures in July, reaching a peak of 83.1°F (28.4°C) and a minimum of 66°F (18.9°C). The heat index value during July is evaluated at a tropical 91.4°F (33°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Plano, Iowa, with an average temperature varying between 82°F (27.8°C) and 63.5°F (17.5°C). Plano experiences a subtle adjustment in high-temperatures to a still warm 82°F (27.8°C) with the onset of August, maintaining near parity with July's 83.1°F (28.4°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Plano, Iowa, with an average temperature varying between 56.5°F (13.6°C) and 76.1°F (24.5°C). In Plano, the average high-temperature in September slightly decreases from 82°F (27.8°C) in August to a still moderately hot 76.1°F (24.5°C). Weather in September »

Weather in October

October, like September, in Plano, Iowa, is another enjoyable autumn month, with temperature in the range of an average high of 61.7°F (16.5°C) and an average low of 44.6°F (7°C). As October arrives, Plano's weather displays a notable decrease in high-temperatures, falling from September's moderately hot 76.1°F (24.5°C) to a refreshing 61.7°F (16.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Plano, is another chilly month, with an average temperature fluctuating between 48.4°F (9.1°C) and 33.6°F (0.9°C). The beginning of November marks a decrease in the average high-temperature, transitioning from an enjoyable 61.7°F (16.5°C) in October to a chilly 48.4°F (9.1°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Plano, Iowa, with temperature in the range of an average high of 35.8°F (2.1°C) and an average low of 23.9°F (-4.5°C). As December commences, the average high-temperature shows a reduction, transitioning from a chilly 48.4°F (9.1°C) in November to a wintry 35.8°F (2.1°C). Weather in December »
Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in Plano?

Plano experiences its lowest temperatures in January, with an average peak of 30.6°F (-0.8°C) and a low of 16.5°F (-8.6°C).

What is the driest month?

The month with the least rainfall is January, when the rain falls for 5 days and typically collects 1.02" (26mm) of precipitation.

How much does it rain in Plano?

Throughout the year, there are 143.2 rainfall days, and 27.48" (698mm) of precipitation is accumulated.

When does it snow?

January through May, October through December are months with snowfall.

What is the snowiest month?

The month with the most snowfall in Plano is January, when snow falls for 9.4 days and typically aggregates up to 4.33" (110mm) of snow.

How many days does it snow in Plano?

In Plano, during the entire year, snow falls for 33.2 days and aggregates up to 15.31" (389mm) of snow.

What is the month with the least sunshine?

With an average of 4.3h of sunshine, January has the least sunshine of the year.

What is the month with the lowest UV index?

January is the month with the lowest UV index, with an average maximum UV index of 1.

When is Daylight Saving Time (DST)?

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.

What is the most humid month?

With an average relative humidity of 83%, June is the most humid month.

What is the wettest month?

June is the month with the most rainfall. Rain falls for 18.1 days and accumulates 3.98" (101mm) of precipitation.

When it does not snow?

In Plano, Iowa, snow does not fall in June through September.

When are the longest days?

June has the longest days of the year, with an average of 15h and 0min of daylight.

What are the months with the highest UV index?

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

What time of the year is the hottest?

In Plano, temperatures reach their average annual highs in July, measuring 83.1°F (28.4°C) and a minimum average of 66°F (18.9°C).

What month has the most sunshine?

July has the most sunshine of the year, with an average of 10.4h of sunshine.

What is the least humid month?

October is the least humid month, with an average relative humidity of 72%.

What is the month with the shortest days in Plano?

December has the shortest days of the year, with an average of 9h and 18min of daylight.

Average temperature
Plano, IA

Average temperature - Plano, IA

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (30.6°F).

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

Average pressure
Plano, IA

Average pressure - Plano, IA

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed
Plano, IA

Average wind speed - Plano, IA

The windiest months (with the highest average wind speed) are January, February and March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

Average rainfall
Plano, IA

Average rainfall - Plano, IA

The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (1.02").

Average rainfall days
Plano, IA

Average rainfall days - Plano, IA

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (5 days).

Average snowfall
Plano, IA

Average snowfall - Plano, IA

The month with the highest snowfall is January (4.33").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Plano, IA

Average snowfall days - Plano, IA

The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Plano, IA

Average daylight / Average sunshine - Plano, IA

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days
Plano, IA

Average sunshine days - Plano, IA

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (8.8 days).

Average visibility
Plano, IA

Average visibility - Plano, IA

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

Plano, Iowa, USA

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