Climate and monthly weather forecastTrenton, PA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Trenton, Pennsylvania, is another subzero cold winter month, with temperature in the range of an average low of 19.8°F (-6.8°C) and an average high of 31.6°F (-0.2°C). January, on average, is the coldest month, registering a high temperature of 31.6°F (-0.2°C) and a low of 19.8°F (-6.8°C). Weather in January »Weather in February
The last month of the winter, February, is a wintry month in Trenton, Pennsylvania, with temperature in the range of an average low of 21.9°F (-5.6°C) and an average high of 35.6°F (2°C). Entering February, Trenton's average high-temperature reads a wintry 35.6°F (2°C), indicating a close resemblance to the previous month's climate. Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Trenton, Pennsylvania, with an average temperature varying between 29.1°F (-1.6°C) and 44.2°F (6.8°C). The commencement of March sees a minor shift in the average high-temperature, moving from a wintry 35.6°F (2°C) in February to a frosty 44.2°F (6.8°C). Weather in March »Weather in April
April in Trenton, Pennsylvania, is a refreshing spring month, with temperature in the range of an average low of 39.6°F (4.2°C) and an average high of 56.8°F (13.8°C). April witnesses an increase in the average high-temperature, moving from a chilly 44.2°F (6.8°C) in March to a refreshing 56.8°F (13.8°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Trenton, Pennsylvania, with temperature in the range of an average high of 67.6°F (19.8°C) and an average low of 49.6°F (9.8°C). The arrival of May brings a change in Trenton's weather, with average high-temperatures moving from April's mild 56.8°F (13.8°C) to a still refreshing 67.6°F (19.8°C). Weather in May »Weather in June
June, the first month of the summer in Trenton, is a warm month, with temperature in the range of an average low of 56.8°F (13.8°C) and an average high of 75.2°F (24°C). As Trenton transitions into June, a marginal rise in the average high-temperature is observed, moving from a comfortable 67.6°F (19.8°C) in May to a warm 75.2°F (24°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Trenton, Pennsylvania, with an average temperature fluctuating between 81°F (27.2°C) and 61.5°F (16.4°C). July stands out as Trenton's warmest month, with an average high-temperature of 81°F (27.2°C) and a low-temperature of 61.5°F (16.4°C). The heat index value for July is calculated to be a tropical 86°F (30°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Trenton, Pennsylvania, with an average temperature ranging between max 78.4°F (25.8°C) and min 60.1°F (15.6°C). The onset of August notes an average high-temperature of a still moderately hot 78.4°F (25.8°C), subtly shifted from July's 81°F (27.2°C). Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Trenton, Pennsylvania, with an average temperature ranging between min 54°F (12.2°C) and max 72.7°F (22.6°C). September's onset brings a negligible change in high-temperatures, falling from a warm 78.4°F (25.8°C) in August to an agreeable 72.7°F (22.6°C). Weather in September »Weather in October
October, like September, is a moderate autumn month in Trenton, Pennsylvania, with temperature in the range of an average high of 59.9°F (15.5°C) and an average low of 44.4°F (6.9°C). October brings a decrease in the average high-temperature, shifting from a pleasant 72.7°F (22.6°C) in September to a moderate 59.9°F (15.5°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Trenton, Pennsylvania, with an average temperature fluctuating between 47.3°F (8.5°C) and 33.4°F (0.8°C). The start of November signals a decrease in the average high-temperature, transitioning from a refreshing 59.9°F (15.5°C) in October to a chilly 47.3°F (8.5°C). Weather in November »Weather in December
December, the first month of the winter in Trenton, is also an icy month, with temperature in the range of an average high of 37.9°F (3.3°C) and an average low of 27.5°F (-2.5°C). December's arrival correlates with a reduction in the average high-temperature, down from a chilly 47.3°F (8.5°C) in November to a cold 37.9°F (3.3°C). Weather in December »Updated: Aug 19, 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
January is the coldest month, with the temperature often reaching an average high of 31.6°F (-0.2°C) and an average low of 19.8°F (-6.8°C).
In Trenton, during the entire year, the rain falls for 139.8 days and collects up to 24.69" (627mm) of precipitation.
January through May, October through December are months with snowfall.
Throughout the year, in Trenton, there are 33.6 snowfall days, and 20.67" (525mm) of snow is accumulated.
The months with the least sunshine are January and February, with an average of 4.3h of sunshine.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
February is the most humid month, with an average relative humidity of 83%.
March is the month with the most snowfall in Trenton. Snow falls for 6.9 days and accumulates 4.96" (126mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
April is the least humid month, with an average relative humidity of 77%.
May is the month with the most rainfall. Rain falls for 17.2 days and accumulates 2.72" (69mm) of precipitation.
In Trenton, snow does not fall in June through September.
June has the longest days of the year, with an average of 15h and 6min of daylight.
June is the month with the highest UV index, with an average maximum UV index of 6.
July is the warmest month, with the temperature often reaching an average high of 81°F (27.2°C) and an average low of 61.5°F (16.4°C).
The month with the most sunshine is July, with an average of 10.4h of sunshine.
September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.57" (40mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 18min of daylight.
Average temperature
Trenton, PA
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.6°F).
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure
Trenton, PA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Trenton, PA
- Average wind speed in January:
8.1mph - Average wind speed in February:
8.1mph - Average wind speed in March:
8.3mph - Average wind speed in April:
8.2mph - Average wind speed in May:
6.3mph - Average wind speed in June:
5.9mph
- Average wind speed in July:
5mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.7mph - Average wind speed in November:
7.1mph - Average wind speed in December:
7.7mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity
Trenton, PA
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall
Trenton, PA
- Average rainfall in January:
1.73" - Average rainfall in February:
1.65" - Average rainfall in March:
1.97" - Average rainfall in April:
2.17" - Average rainfall in May:
2.72" - Average rainfall in June:
1.97"
- Average rainfall in July:
2.28" - Average rainfall in August:
2.48" - Average rainfall in September:
1.57" - Average rainfall in October:
2.13" - Average rainfall in November:
2.17" - Average rainfall in December:
1.85"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days
Trenton, PA
- Average rainfall days in January:
5.8 days - Average rainfall days in February:
7 days - Average rainfall days in March:
11.3 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
17.2 days - Average rainfall days in June:
14.6 days
- Average rainfall days in July:
14.4 days - Average rainfall days in August:
14.7 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
12.3 days - Average rainfall days in November:
7.5 days - Average rainfall days in December:
8.9 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (5.8 days).
Average snowfall
Trenton, PA
- Average snowfall in January:
4.53" - Average snowfall in February:
3.94" - Average snowfall in March:
4.96" - Average snowfall in April:
0.35" - Average snowfall in May:
0.31" - Average snowfall in June:
0"
The month with the highest snowfall is March (4.96").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Trenton, PA
- Average snowfall days in January:
7.6 days - Average snowfall days in February:
8.8 days - Average snowfall days in March:
6.9 days - Average snowfall days in April:
1.9 days - Average snowfall days in May:
0.3 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:
0.6 days - Average snowfall days in November:
2.6 days - Average snowfall days in December:
4.9 days
The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Trenton, PA
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
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 and 18min - Average sunshine in February:
4h and 18min - Average sunshine in March:
6h and 6min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 18min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
9h and 54min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 12min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 18min).
Average sunshine days
Trenton, PA
- Average sunshine days in January:
19.6 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
13.6 days - Average sunshine days in May:
11.2 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
12.7 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
17 days - Average sunshine days in October:
16.4 days - Average sunshine days in November:
19.6 days - Average sunshine days in December:
18.5 days
The months with the most sunshine days are January and November (19.6 days).
The month with the least sunshine days is May (11.2 days).
Average UV index
Trenton, PA
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Trenton, PA
The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility
Trenton, PA
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
