2024 Compare Climate & Weather:
Rockville, MD vs Edison, NJ
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Highlights
On average, there are 206 sunny days per year in Edison. Rockville averages 203 sunny days per year. The US average is 205 sunny days.
Edison, New Jersey gets 48.4 inches of rain, on average, per year. Rockville, Maryland gets 42.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.
Edison averages 24.2 inches of snow per year. Rockville averages 18.2 inches of snow per year. The US average is 27.8 inches of snow per year.
Weather Highlights
Edison, New Jersey
Summer High: the July high is around 86.3 degrees
Winter Low: the January low is 22.2
Rain: averages 48.4 inches of rain a year
Snow: averages 24.2 inches of snow a year
Rockville, Maryland
Summer High: the July high is around 84.8 degrees
Winter Low: the January low is 25.1
Rain: averages 42.2 inches of rain a year
Snow: averages 18.2 inches of snow a year
BESTPLACES COMFORT INDEX
EdisonThe annual BestPlaces Comfort Index for Edison 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 Edison, while January and February are the least comfortable months.
RockvilleThe annual BestPlaces Comfort Index for Rockville is 7.4 (10=best), which means it is one of the most pleasant places in Maryland.
7.4 / 10
September, June and May are the most pleasant months in Rockville, while January and February are the least comfortable months.
Today's Weather - Rockville, MD
4 AM PST
Patchy Fog then Sunny
48°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Today | Patchy Fog then Sunny | 77° / 59° | S 3 to 10 mph |
| Tuesday | Showers And Thunderstorms | 70° / 62° | S 7 to 13 mph |
| Wednesday | Rain Showers Likely | 70° / 59° | NE 5 to 10 mph |
| Thursday | Chance Showers And Thunderstorms | 75° / 59° | N 12 mph |
| Friday | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 76° / 61° | SE 7 to 12 mph |
| Saturday | Chance Showers And Thunderstorms | 72° / 59° | S 13 mph |
| Sunday | Chance Showers And Thunderstorms | 77° / 60° | NW 12 mph |
Today's Weather - Edison, NJ
4 AM PST
Patchy Fog then Mostly Sunny
47°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Today | Patchy Fog then Mostly Sunny | 72° / 52° | SW 0 to 10 mph |
| Tuesday | Mostly Cloudy then Chance Rain Showers | 77° / 59° | SW 5 to 15 mph |
| Wednesday | Rain Showers | 66° / 57° | E 10 mph |
| Thursday | Slight Chance Rain Showers | 71° / 56° | N 10 to 15 mph |
| Friday | Partly Sunny then Slight Chance Rain Showers | 71° / 55° | E 5 to 10 mph |
| Saturday | Chance Rain Showers | 67° / 55° | SE 10 to 15 mph |
| Sunday | Chance Rain Showers | 72° / 56° | NW 10 to 15 mph |
Average Monthly High / Low (°F)
| Month | Rockville, MD | Edison, NJ |
|---|
| January | 42° / 25° | 40° / 22° |
| February | 45° / 27° | 43° / 24° |
| March | 54° / 34° | 52° / 31° |
| April | 65° / 44° | 63° / 40° |
| May | 73° / 53° | 73° / 50° |
| June | 81° / 63° | 82° / 60° |
| July | 85° / 68° | 86° / 65° |
| August | 83° / 66° | 85° / 63° |
| September | 76° / 59° | 78° / 55° |
| October | 66° / 47° | 66° / 43° |
| November | 56° / 38° | 55° / 36° |
| December | 45° / 29° | 44° / 27° |
Hot, Freezing, Rainy, Snowy Days: Rockville / Edison
| Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
|---|
| January | 0 / 0 | 23 / 26 | 10 / 10 | 3 / 3 |
| February | 0 / 0 | 20 / 23 | 8 / 9 | 2 / 3 |
| March | 0 / 0 | 13 / 18 | 10 / 10 | 1 / 2 |
| April | 0 / 0 | 2 / 5 | 10 / 11 | 0 / 0 |
| May | 1 / 1 | 0 / 0 | 12 / 11 | 0 / 0 |
| June | 3 / 4 | 0 / 0 | 10 / 10 | 0 / 0 |
| July | 6 / 9 | 0 / 0 | 10 / 10 | 0 / 0 |
| August | 4 / 5 | 0 / 0 | 8 / 9 | 0 / 0 |
| September | 1 / 1 | 0 / 0 | 9 / 8 | 0 / 0 |
| October | 0 / 0 | 1 / 3 | 8 / 8 | 0 / 0 |
| November | 0 / 0 | 8 / 11 | 9 / 9 | 0 / 0 |
| December | 0 / 0 | 20 / 23 | 9 / 10 | 1 / 2 |
July is the hottest month for Rockville with an average high temperature of 84.8°, which ranks it as one of the coolest places in Maryland. In Rockville, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rockville are September, June and May.
July is the hottest month for Edison with an average high temperature of 86.3°, which ranks it as warmer than most places in New Jersey. In Edison, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Edison are September, June and May.
January has the coldest nighttime temperatures for Rockville with an average of 25.1°. This is about average compared to other places in Maryland.
January has the coldest nighttime temperatures for Edison with an average of 22.2°. This is about average compared to other places in New Jersey.
In Rockville, there are 13.9 days annually when the high temperature is over 90°, which is one of the coolest places in Maryland.
In Edison, there are 20.7 days annually when the high temperature is over 90°, which is hotter than most places in New Jersey.
In Rockville, there are 88.3 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Maryland.
In Edison, there are 107.6 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in New Jersey.
In Rockville, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Maryland.
In Edison, there are 0.7 days annually when the nighttime low temperature falls below zero°, which is colder than most places in New Jersey.
May is the wettest month in Rockville with 4.3 inches of rain, and the driest month is February with 2.7 inches. The wettest season is Summer with 27% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 42.2 inches in Rockville means that it is drier than most places in Maryland.
July is the wettest month in Edison with 5.3 inches of rain, and the driest month is February with 2.8 inches. The wettest season is Autumn with 28% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 48.4 inches in Edison means that it is wetter than most places in New Jersey.
May is the rainiest month in Rockville with 11.6 days of rain, and August is the driest month with only 8.2 rainy days. There are 112.3 rainy days annually in Rockville, which is about average compared to other places in Maryland. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% chance of a rainy day.
May is the rainiest month in Edison with 11.3 days of rain, and September is the driest month with only 8.4 rainy days. There are 116.1 rainy days annually in Edison, which is about average compared to other 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.
An annual snowfall of 18.2 inches in Rockville means that it is snowier than most places in Maryland.
An annual snowfall of 24.2 inches in Edison means that it is about average compared to other places in New Jersey.
January is the snowiest month in Rockville with 7.1 inches of snow, and 5 months of the year have significant snowfall.
February is the snowiest month in Edison with 8.1 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 Rockville 
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 Rockville
Reviews for Edison 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 Edison
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