Climate and monthly weather forecast
Trenton, IA

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Weather in January

January, the same as December, in Trenton, Iowa, is another subzero cold winter month, with an average temperature fluctuating between 17.4°F (-8.1°C) and 29.7°F (-1.3°C). With its high average temperature of 29.7°F (-1.3°C) and a low of 17.4°F (-8.1°C), January is regarded as the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Trenton, is an icy month, with an average temperature ranging between max 34.3°F (1.3°C) and min 21°F (-6.1°C). In February, the average high-temperature registers at an icy 34.3°F (1.3°C), nearly identical to January's 29.7°F (-1.3°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Trenton, Iowa, with an average temperature fluctuating between 48.2°F (9°C) and 33.3°F (0.7°C). The shift into March is characterized by a rise in the average high-temperature, transitioning from February's cold 34.3°F (1.3°C) to a chilly 48.2°F (9°C). Weather in March »

Weather in April

April in Trenton, Iowa, is an enjoyable spring month, with an average temperature ranging between min 43.3°F (6.3°C) and max 60.8°F (16°C). Trenton's April weather shows an increase in high-temperatures, moving from March's chilly 48.2°F (9°C) to a comfortable 60.8°F (16°C). Weather in April »

Weather in May

May, the last month of the spring in Trenton, is an agreeable month, with an average temperature fluctuating between 70.9°F (21.6°C) and 53.8°F (12.1°C). Trenton's May weather brings a rise in high-temperatures, moving from an enjoyable 60.8°F (16°C) in April to a pleasant 70.9°F (21.6°C). Weather in May »

Weather in June

June, the first month of the summer in Trenton, is a moderately hot month, with temperature in the range of an average high of 79.9°F (26.6°C) and an average low of 63.7°F (17.6°C). The rise of average high-temperatures is seen in June, with an increase from an agreeable 70.9°F (21.6°C) in May to a warm 79.9°F (26.6°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Trenton, Iowa, with an average temperature ranging between min 65.3°F (18.5°C) and max 82.4°F (28°C). The temperatures reach their highest averages in July, with highs of 82.4°F (28°C) and lows of 65.3°F (18.5°C). The average heat index in July is estimated at a hot 91.4°F (33°C). Weather in July »

Weather in August

August, the last month of the summer in Trenton, is also a moderately hot month, with an average temperature fluctuating between 81.7°F (27.6°C) and 63.3°F (17.4°C). With August's advent, Trenton sees an average high-temperature of a still moderately hot 81.7°F (27.6°C), subtly shifted from July's 82.4°F (28°C). Weather in August »

Weather in September

September, the first month of the autumn in Trenton, is still a warm month, with an average temperature varying between 76.3°F (24.6°C) and 56.7°F (13.7°C). The beginning of September brings a minor change in the average high-temperature, shifting from 81.7°F (27.6°C) in August to a still moderately hot 76.3°F (24.6°C). Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in Trenton, Iowa, with an average temperature varying between 61.7°F (16.5°C) and 45.7°F (7.6°C). The start of October brings a distinct shift in the average high-temperature, dropping from September's moderately hot 76.3°F (24.6°C) to a refreshing 61.7°F (16.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Trenton, Iowa, with temperature in the range of an average high of 48°F (8.9°C) and an average low of 34°F (1.1°C). As October transitions to November, the average high-temperature falls from a refreshing 61.7°F (16.5°C) to a chilly 48°F (8.9°C). Weather in November »

Weather in December

December, the first month of the winter in Trenton, is still a cold month, with an average temperature ranging between min 24.6°F (-4.1°C) and max 36°F (2.2°C). Trenton's December weather comes with a decrease in average high-temperatures, moving from a chilly 48°F (8.9°C) in November to an icy 36°F (2.2°C). Weather in December »
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Frequently asked questions

What time of the year is the coldest in Trenton?

Trenton's coldest temperatures are experienced in January, with average high temperatures of 29.7°F (-1.3°C) and lows of 17.4°F (-8.1°C).

How many days does it rain in Trenton?

Throughout the year, in Trenton, Iowa, there are 140.1 rainfall days, and 29.92" (760mm) of precipitation is accumulated.

When does it snow in Trenton?

Months with snowfall in Trenton, Iowa, are January through April, October through December.

When does it snow the most in Trenton?

January is the month with the most snowfall in Trenton. Snow falls for 9.6 days and accumulates 4.76" (121mm) of snow.

How many days does it snow in Trenton?

Throughout the year, in Trenton, Iowa, there are 30.7 snowfall days, and 15" (381mm) of snow is accumulated.

What is the month with the least sunshine in Trenton?

January has the least sunshine of the year in Trenton, with an average of 4h of sunshine.

When is the lowest UV index in Trenton?

With an average maximum UV index of 1, January is the month with the lowest UV index in Trenton, Iowa.

What is the driest month in Trenton?

February and December are months with the least rain when the rain falls for 4.6 days and typically aggregates up to 1.38" (35mm) of rain.

When is Daylight Saving Time (DST) in Trenton?

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

May is the month with the most rainfall. Rain falls for 18.3 days and accumulates 4.29" (109mm) of precipitation.

When it does not snow in Trenton?

In Trenton, Iowa, snow does not fall in May through September.

When are the longest days in Trenton?

The month with the longest days in Trenton is June, with an average of 15h and 6min of daylight.

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

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What month is the hottest in Trenton?

During the warmest month in Trenton, July, temperatures average a high of 82.4°F (28°C) and a low of 65.3°F (18.5°C).

What is the most humid month in Trenton?

With an average relative humidity of 83%, July is the most humid month in Trenton.

What month has the most sunshine in Trenton?

The month with the most sunshine is July, with an average of 10h of sunshine.

What is the least humid month in Trenton?

With an average relative humidity of 71%, October is the least humid month in Trenton, Iowa.

What is the month with the shortest days in Trenton?

The month with the shortest days is December, with an average of 9h and 18min of daylight.

Average pressure
Trenton, IA

Average pressure - Trenton, IA

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed
Trenton, IA

Average wind speed - Trenton, IA

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

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Average rainfall
Trenton, IA

Average rainfall - Trenton, IA

The wettest month (with the highest rainfall) is May (4.29").
The driest months (with the least rainfall) are February and December (1.38").

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Average rainfall days
Trenton, IA

Average rainfall days - Trenton, IA

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (4.6 days).

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Average snowfall
Trenton, IA

Average snowfall - Trenton, IA

The month with the highest snowfall is January (4.76").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Trenton, IA

Average snowfall days - Trenton, IA

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Trenton, IA

Average daylight / Average sunshine - Trenton, IA

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

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

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Average sunshine days
Trenton, IA

Average sunshine days - Trenton, IA

The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is May (10.6 days).

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Average visibility
Trenton, IA

Average visibility - Trenton, IA

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

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Trenton, Iowa, USA

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