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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 Trenton, Iowa, is another subzero cold winter month, with temperature in the range of an average low of 17.4°F (-8.1°C) and an average high of 29.7°F (-1.3°C). January, with its average high-temperature of 29.7°F (-1.3°C) and an average low-temperature of 17.4°F (-8.1°C), holds the record as the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is a cold month in Trenton, Iowa, with an average temperature fluctuating between 21°F (-6.1°C) and 34.3°F (1.3°C). Trenton signifies an average high-temperature of a wintry 34.3°F (1.3°C) in February, closely mirroring the 29.7°F (-1.3°C) of January. Weather in February »
Weather in March
March, the first month of the spring in Trenton, is a frosty month, with an average temperature varying between 33.3°F (0.7°C) and 48.2°F (9°C). A rise in the average high-temperature is observed during March, moving from a cold 34.3°F (1.3°C) in February to a chilly 48.2°F (9°C). Weather in March »
Weather in April
April in Trenton, Iowa, is an enjoyable spring month, with temperature in the range of an average high of 60.8°F (16°C) and an average low of 43.3°F (6.3°C). The shift into April brings an increase in the average high-temperature, moving from a chilly 48.2°F (9°C) in March to an enjoyable 60.8°F (16°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Trenton, Iowa, with temperature in the range of an average high of 70.9°F (21.6°C) and an average low of 53.8°F (12.1°C). May brings an increase in the average high-temperature, progressing 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
The first month of the summer, June, is a moderately hot month in Trenton, Iowa, with an average temperature fluctuating between 63.7°F (17.6°C) and 79.9°F (26.6°C). As Trenton transitions into June, the average high-temperature shows a change, moving from a pleasant 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 max 82.4°F (28°C) and min 65.3°F (18.5°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). For most parts of July, the heat index is estimated at a tropical 91.4°F (33°C). Weather in July »
Weather in August
August, the last month of the summer in Trenton, is another warm month, with an average temperature fluctuating between 81.7°F (27.6°C) and 63.3°F (17.4°C). The beginning of August reveals an average high-temperature of a still warm 81.7°F (27.6°C), showing minimal deviation from the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Trenton, Iowa, with temperature in the range of an average high of 76.3°F (24.6°C) and an average low of 56.7°F (13.7°C). The average high-temperature slightly decreases in September, shifting from a moderately hot 81.7°F (27.6°C) in August to a still warm 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 temperature in the range of an average high of 61.7°F (16.5°C) and an average low of 45.7°F (7.6°C). Witnessing a clear drop in October, the average high-temperature declines from September's moderately hot 76.3°F (24.6°C) to an enjoyable 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 low of 34°F (1.1°C) and an average high of 48°F (8.9°C). Trenton in November undergoes a mild reduction in the average high-temperature, shifting from October's comfortable 61.7°F (16.5°C) to a chilly 48°F (8.9°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Trenton, Iowa, with temperature in the range of an average high of 36°F (2.2°C) and an average low of 24.6°F (-4.1°C). The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a frosty 48°F (8.9°C) in November to an icy 36°F (2.2°C). Weather in December »
Updated: Aug 12, 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 time of year in Trenton?
Trenton's coldest month, January, generally records average temperatures ranging from a high of 29.7°F (-1.3°C) to a low of 17.4°F (-8.1°C).
How many days does it rain?
In Trenton, during the entire year, the rain falls for 140.1 days and collects up to 29.92" (760mm) of precipitation.
When does it snow?
January through April, October through December are months with snowfall.
When does it snow the most?
The month with the most snowfall is January, when snow falls for 9.6 days and typically aggregates up to 4.76" (121mm) of snow.
How many days does it snow?
In Trenton, during the entire year, snow falls for 30.7 days and aggregates up to 15" (381mm) of snow.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 4h of sunshine.
When is the lowest UV index?
With an average maximum UV index of 1, January is the month with the lowest UV index.
What is the driest month?
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)?
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 wettest month?
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, snow does not fall in May through September.
When are the longest days?
With an average of 15h and 6min of daylight, June has the longest days of the year in Trenton.
What are the months with the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What is the hottest time of year?
Trenton records the warmest temperatures in July, averaging 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?
July is the most humid month, with an average relative humidity of 83%.
What month has the most sunshine?
With an average of 10h of sunshine, July has the most sunshine of the year.
What is the least humid month?
October is the least humid month, with an average relative humidity of 71%.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 18min of daylight.
Average temperature
Trenton, IA
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (29.7°F).
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure
Trenton, IA
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Trenton, IA
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.5mph - Average wind speed in March:
10.6mph - Average wind speed in April:
10.6mph - Average wind speed in May:
8.9mph - Average wind speed in June:
7.9mph
- Average wind speed in July:
6.9mph - Average wind speed in August:
6.9mph - Average wind speed in September:
7.9mph - Average wind speed in October:
9.6mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.1mph
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).
Average humidity
Trenton, IA
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Trenton, IA
- Average rainfall in January:
1.42" - Average rainfall in February:
1.38" - Average rainfall in March:
2.2" - Average rainfall in April:
3.27" - Average rainfall in May:
4.29" - Average rainfall in June:
4.17"
The wettest month (with the highest rainfall) is May (4.29").
The driest months (with the least rainfall) are February and December (1.38").
Average rainfall days
Trenton, IA
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
4.6 days - Average rainfall days in March:
13 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
17.1 days
- Average rainfall days in July:
15.5 days - Average rainfall days in August:
13.1 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
11.3 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
7.3 days
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).
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").
Average snowfall days
Trenton, IA
- Average snowfall days in January:
9.6 days - Average snowfall days in February:
7.9 days - Average snowfall days in March:
4.3 days - Average snowfall days in April:
0.9 days - Average snowfall days in May:
0 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:
0.4 days - Average snowfall days in November:
1.6 days - Average snowfall days in December:
6 days
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).
Average daylight / Average sunshine
Trenton, IA
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
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).
- Average sunshine in January:
4h - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 2min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 2min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 3min
The month with the most sunshine is July (Average sunshine: 10h).
The month with the least sunshine is January (Average sunshine: 4h).
Average sunshine days
Trenton, IA
- Average sunshine days in January:
16.2 days - Average sunshine days in February:
15.3 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
10.6 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
13 days - Average sunshine days in August:
14.8 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
18.4 days - Average sunshine days in November:
18.3 days - Average sunshine days in December:
18 days
The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is May (10.6 days).
Average UV index
Trenton, IA
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Trenton, IA
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July, August and September (Cloud cover 31).
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).
Trenton, Iowa, USA
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