2024 Compare Climate & Weather:
Trenton, NJ vs St. Louis, MO
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Highlights
On average, there are 202 sunny days per year in St. Louis. Trenton averages 201 sunny days per year. The US average is 205 sunny days.
St. Louis, Missouri gets 42.2 inches of rain, on average, per year. Trenton, New Jersey gets 47.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.
St. Louis averages 15.5 inches of snow per year. Trenton averages 19.9 inches of snow per year. The US average is 27.8 inches of snow per year.
Weather Highlights
St. Louis, Missouri
Summer High: the July high is around 88.5 degrees
Winter Low: the January low is 22.8
Rain: averages 42.2 inches of rain a year
Snow: averages 15.5 inches of snow a year
Trenton, New Jersey
Summer High: the July high is around 85.4 degrees
Winter Low: the January low is 22.1
Rain: averages 47.5 inches of rain a year
Snow: averages 19.9 inches of snow a year
BESTPLACES COMFORT INDEX
St. LouisThe annual BestPlaces Comfort Index for St. Louis is 7.2 (10=best), which means it is more comfortable than most places in Missouri.
7.2 / 10
September, May and October are the most pleasant months in St. Louis, while January and December are the least comfortable months.
TrentonThe annual BestPlaces Comfort Index for Trenton is 7.2 (10=best), which means it is about average compared to other places in New Jersey.
7.2 / 10
September, June and May are the most pleasant months in Trenton, while January and February are the least comfortable months.
Today's Weather - Trenton, NJ
3 AM PST
Patchy Fog then Mostly Sunny
58°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Today | Patchy Fog then Mostly Sunny | 86° / 59° | SW 5 mph |
| Wednesday | Sunny | 88° / 67° | SW 5 to 10 mph |
| Thursday | Chance Showers And Thunderstorms | 88° / 64° | SW 5 to 10 mph |
| Friday | Slight Chance Showers And Thunderstorms | 84° / 62° | W 0 to 5 mph |
| Saturday | Chance Showers And Thunderstorms | 78° / 60° | E 0 to 5 mph |
| Sunday | Chance Rain Showers | 78° / 60° | E 0 to 5 mph |
| Memorial Day | Chance Showers And Thunderstorms | 76° / 60° | SE 5 mph |
Today's Weather - St. Louis, MO
3 AM PST
Mostly Clear
70°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Overnight | Mostly Clear | 69° / 92° | S 6 mph |
| Tuesday Night | Chance Showers And Thunderstorms then Showers And Thunderstorms | 65° / 78° | SW 7 to 20 mph |
| Wednesday Night | Showers And Thunderstorms Likely | 64° / 82° | NE 2 to 7 mph |
| Thursday Night | Chance Showers And Thunderstorms | 66° / 84° | SE 6 mph |
| Friday Night | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 67° / 86° | SW 6 mph |
| Saturday Night | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 66° / 83° | SE 7 mph |
| Sunday Night | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 66° / 84° | SW 8 mph |
Average Monthly High / Low (°F)
| Month | Trenton, NJ | St. Louis, MO |
|---|
| January | 39° / 22° | 40° / 23° |
| February | 42° / 25° | 45° / 27° |
| March | 51° / 31° | 56° / 36° |
| April | 62° / 41° | 67° / 46° |
| May | 72° / 50° | 76° / 56° |
| June | 81° / 60° | 85° / 65° |
| July | 85° / 65° | 89° / 69° |
| August | 84° / 63° | 88° / 68° |
| September | 77° / 56° | 80° / 59° |
| October | 65° / 43° | 69° / 47° |
| November | 55° / 35° | 56° / 37° |
| December | 44° / 27° | 43° / 27° |
Hot, Freezing, Rainy, Snowy Days: Trenton / St. Louis
| Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
|---|
| January | 0 / 0 | 26 / 25 | 10 / 8 | 3 / 3 |
| February | 0 / 0 | 23 / 20 | 9 / 7 | 2 / 2 |
| March | 0 / 0 | 17 / 12 | 11 / 10 | 1 / 1 |
| April | 0 / 0 | 4 / 2 | 12 / 11 | 0 / 0 |
| May | 1 / 1 | 0 / 0 | 12 / 11 | 0 / 0 |
| June | 3 / 7 | 0 / 0 | 11 / 9 | 0 / 0 |
| July | 7 / 13 | 0 / 0 | 10 / 8 | 0 / 0 |
| August | 4 / 11 | 0 / 0 | 9 / 8 | 0 / 0 |
| September | 1 / 3 | 0 / 0 | 9 / 7 | 0 / 0 |
| October | 0 / 0 | 3 / 2 | 9 / 8 | 0 / 0 |
| November | 0 / 0 | 12 / 10 | 9 / 9 | 0 / 1 |
| December | 0 / 0 | 23 / 22 | 10 / 9 | 2 / 3 |
July is the hottest month for Trenton with an average high temperature of 85.4°, which ranks it as about average compared to other places in New Jersey. In Trenton, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Trenton are September, June and August.
July is the hottest month for St. Louis with an average high temperature of 88.5°, which ranks it as about average compared to other places in Missouri. In St. Louis, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. Louis are May, September and June.
January has the coldest nighttime temperatures for Trenton with an average of 22.1°. This is colder than most places in New Jersey.
January has the coldest nighttime temperatures for St. Louis with an average of 22.8°. This is warmer than most places in Missouri.
In Trenton, there are 16.6 days annually when the high temperature is over 90°, which is about average compared to other places in New Jersey.
In St. Louis, there are 36.0 days annually when the high temperature is over 90°, which is hotter than most places in Missouri.
In Trenton, there are 107.1 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in New Jersey.
In St. Louis, there are 91.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Missouri.
In Trenton, there are 0.6 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in New Jersey.
In St. Louis, there are 1.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Missouri.
July is the wettest month in Trenton with 5.0 inches of rain, and the driest month is February with 2.6 inches. The wettest season is Autumn with 29% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 47.5 inches in Trenton means that it is about average compared to other places in New Jersey.
May is the wettest month in St. Louis with 4.8 inches of rain, and the driest month is February with 2.3 inches. The wettest season is Summer with 29% of yearly precipitation and 18% occurs in Spring, which is the driest season. The annual rainfall of 42.2 inches in St. Louis means that it is drier than most places in Missouri.
May is the rainiest month in Trenton with 11.6 days of rain, and September is the driest month with only 8.6 rainy days. There are 120.1 rainy days annually in Trenton, which is rainier than most places in New Jersey. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 22% chance of a rainy day.
May is the rainiest month in St. Louis with 11.3 days of rain, and September is the driest month with only 7.0 rainy days. There are 105.3 rainy days annually in St. Louis, which is rainier than most places in Missouri. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 23% chance of a rainy day.
An annual snowfall of 19.9 inches in Trenton means that it is less snowy than most places in New Jersey.
An annual snowfall of 15.5 inches in St. Louis means that it is snowier than most places in Missouri.
February is the snowiest month in Trenton with 6.2 inches of snow, and 5 months of the year have significant snowfall.
January is the snowiest month in St. Louis with 4.9 inches of snow, and 5 months of the year have significant snowfall.
DID YOU KNOW?
Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.
Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.
Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.
Reviews for Trenton 
2 Reviews
Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More
Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More
Start Your Review of Trenton
Reviews for St. Louis 2 Reviews
Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More
Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More
Start Your Review of St. Louis
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