2024 Compare Climate & Weather:
Hartsdale, NY vs Mountain Lakes, NJ
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Highlights
On average, there are 207 sunny days per year in Mountain Lakes. Hartsdale averages 200 sunny days per year. The US average is 205 sunny days.
Mountain Lakes, New Jersey gets 50.8 inches of rain, on average, per year. Hartsdale, New York gets 50.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.
Mountain Lakes averages 30.7 inches of snow per year. Hartsdale averages 29.7 inches of snow per year. The US average is 27.8 inches of snow per year.
Weather Highlights
Mountain Lakes, New Jersey
Summer High: the July high is around 84.8 degrees
Winter Low: the January low is 19.6
Rain: averages 50.8 inches of rain a year
Snow: averages 30.7 inches of snow a year
Hartsdale, New York
Summer High: the July high is around 81 degrees
Winter Low: the January low is 18.4
Rain: averages 50.5 inches of rain a year
Snow: averages 29.7 inches of snow a year
BESTPLACES COMFORT INDEX
Mountain LakesThe annual BestPlaces Comfort Index for Mountain Lakes is 7.1 (10=best), which means it is less comfortable than most places in New Jersey.
7.1 / 10
June, September and August are the most pleasant months in Mountain Lakes, while January and February are the least comfortable months.
HartsdaleThe annual BestPlaces Comfort Index for Hartsdale is 6.9 (10=best), which means it is about average compared to other places in New York.
6.9 / 10
June, September and August are the most pleasant months in Hartsdale, while January and February are the least comfortable months.
Today's Weather - Mountain Lakes, NJ
4 AM PST
Sunny
63°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Today | Sunny | 85° / 66° | SW 0 to 10 mph |
| Friday | Mostly Sunny then Showers And Thunderstorms Likely | 88° / 60° | SW 5 to 10 mph |
| Saturday | Sunny | 80° / 56° | N 5 to 10 mph |
| Sunday | Sunny | 81° / 60° | NE 0 to 5 mph |
| Monday | Mostly Sunny | 88° / 67° | S 0 to 5 mph |
| Tuesday | Sunny | 93° / 69° | SW 0 to 5 mph |
| Juneteenth | Sunny then Slight Chance Showers And Thunderstorms | 95° / 70° | SW 0 to 5 mph |
Average Monthly High / Low (°F)
| Month | Hartsdale, NY | Mountain Lakes, NJ |
|---|
| January | 34° / 18° | 37° / 20° |
| February | 38° / 20° | 41° / 21° |
| March | 46° / 27° | 50° / 29° |
| April | 58° / 37° | 62° / 39° |
| May | 68° / 46° | 72° / 49° |
| June | 77° / 56° | 80° / 58° |
| July | 81° / 61° | 85° / 63° |
| August | 79° / 60° | 83° / 62° |
| September | 72° / 52° | 76° / 53° |
| October | 61° / 41° | 65° / 42° |
| November | 50° / 33° | 54° / 34° |
| December | 39° / 24° | 42° / 24° |
Hot, Freezing, Rainy, Snowy Days: Hartsdale / Mountain Lakes
| Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
|---|
| January | 0 / 0 | 28 / 28 | 10 / 10 | 5 / 4 |
| February | 0 / 0 | 25 / 25 | 9 / 9 | 3 / 3 |
| March | 0 / 0 | 21 / 21 | 10 / 10 | 2 / 2 |
| April | 0 / 0 | 8 / 5 | 11 / 11 | 0 / 0 |
| May | 0 / 1 | 2 / 0 | 11 / 11 | 0 / 0 |
| June | 1 / 3 | 0 / 0 | 11 / 11 | 0 / 0 |
| July | 3 / 6 | 0 / 0 | 10 / 10 | 0 / 0 |
| August | 2 / 4 | 0 / 0 | 9 / 9 | 0 / 0 |
| September | 0 / 1 | 0 / 0 | 9 / 8 | 0 / 0 |
| October | 0 / 0 | 5 / 4 | 9 / 8 | 0 / 0 |
| November | 0 / 0 | 14 / 13 | 10 / 9 | 0 / 0 |
| December | 0 / 0 | 25 / 25 | 11 / 9 | 3 / 2 |
July is the hottest month for Hartsdale with an average high temperature of 81.0°, which ranks it as about average compared to other places in New York. In Hartsdale, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Hartsdale are June, August and July.
July is the hottest month for Mountain Lakes with an average high temperature of 84.8°, which ranks it as about average compared to other places in New Jersey. In Mountain Lakes, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Mountain Lakes are September, June and August.
January has the coldest nighttime temperatures for Hartsdale with an average of 18.4°. This is warmer than most places in New York.
January has the coldest nighttime temperatures for Mountain Lakes with an average of 19.6°. This is colder than most places in New Jersey.
In Hartsdale, there are 7.1 days annually when the high temperature is over 90°, which is hotter than most places in New York.
In Mountain Lakes, there are 14.1 days annually when the high temperature is over 90°, which is cooler than most places in New Jersey.
In Hartsdale, there are 127.7 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in New York.
In Mountain Lakes, there are 120.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in New Jersey.
In Hartsdale, there are 4.7 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in New York.
In Mountain Lakes, there are 1.3 days annually when the nighttime low temperature falls below zero°, which is colder than most places in New Jersey.
September is the wettest month in Hartsdale with 4.6 inches of rain, and the driest month is February with 3.1 inches. The wettest season is Winter with 26% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 50.5 inches in Hartsdale means that it is one of the wettest places in New York.
July is the wettest month in Mountain Lakes with 4.8 inches of rain, and the driest month is February with 3.1 inches. The wettest season is Autumn with 26% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 50.8 inches in Mountain Lakes means that it is one of the wettest places in New Jersey.
April is the rainiest month in Hartsdale with 11.3 days of rain, and October is the driest month with only 8.7 rainy days. There are 119.5 rainy days annually in Hartsdale, which is less rainy than most places in New York. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 23% chance of a rainy day.
May is the rainiest month in Mountain Lakes with 11.4 days of rain, and September is the driest month with only 8.2 rainy days. There are 114.9 rainy days annually in Mountain Lakes, which is less rainy 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.
An annual snowfall of 29.7 inches in Hartsdale means that it is less snowy than most places in New York.
An annual snowfall of 30.7 inches in Mountain Lakes means that it is one of the snowiest places in New Jersey.
February is the snowiest month in Hartsdale with 9.0 inches of snow, and 6 months of the year have significant snowfall.
January is the snowiest month in Mountain Lakes with 9.6 inches of snow, and 6 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 Hartsdale 
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 Hartsdale
Reviews for Mountain Lakes 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 Mountain Lakes
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