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2024 Compare Climate & Weather:
Rockville, MD vs Brentwood, TN

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Highlights

On average, there are 210 sunny days per year in Brentwood. Rockville averages 203 sunny days per year. The US average is 205 sunny days.

Brentwood, Tennessee gets 52.9 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.

Brentwood averages 3.6 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

Brentwood, Tennessee
Summer High:
the July high is around 89.1 degrees
Winter Low: the January low is 26.1
Rain: averages 52.9 inches of rain a year
Snow: averages 3.6 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
Brentwood

The annual BestPlaces Comfort Index for Brentwood is 7.3 (10=best), which means it is about average compared to other places in Tennessee.

7.3 / 10
September, May and October are the most pleasant months in Brentwood, while January and December are the least comfortable months.

Rockville

The 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

3 PM PST

Cloudy

65°F

DAYDESCRIPTIONHIGH / LOWWIND
This AfternoonCloudy66° / 63°S 9 mph
MondayAreas Of Fog then Chance Showers And Thunderstorms79° / 63°SW 5 mph
TuesdayChance Showers And Thunderstorms79° / 65°SE 3 to 7 mph
WednesdaySlight Chance Rain Showers then Slight Chance Showers And Thunderstorms85° / 63°W 7 to 16 mph
ThursdayShowers And Thunderstorms76° / 60°SE 8 to 13 mph
FridayChance Rain Showers72° / 52°W 9 to 14 mph
SaturdayChance Rain Showers68° / 50°NW 10 to 14 mph

Today's Weather - Brentwood, TN

3 PM PST

Slight Chance Showers And Thunderstorms

82°F

DAYDESCRIPTIONHIGH / LOWWIND
This AfternoonSlight Chance Showers And Thunderstorms84° / 63°S 5 mph
MondayShowers And Thunderstorms Likely81° / 66°SSW 10 to 15 mph
TuesdayChance Showers And Thunderstorms then Showers And Thunderstorms Likely84° / 66°SSW 10 to 15 mph
WednesdayShowers And Thunderstorms Likely then Chance Showers And Thunderstorms85° / 65°SSW 10 to 15 mph
ThursdayShowers And Thunderstorms83° / 57°WSW 10 to 15 mph
FridayChance Showers And Thunderstorms72° / 49°NW 10 to 15 mph
SaturdaySunny72° / 50°WNW 10 to 15 mph

Average Monthly High / Low (°F)
MonthRockville, MDBrentwood, TN
January42° / 25°47° / 26°
February45° / 27°52° / 29°
March54° / 34°61° / 36°
April65° / 44°70° / 44°
May73° / 53°78° / 54°
June81° / 63°86° / 63°
July85° / 68°89° / 67°
August83° / 66°89° / 65°
September76° / 59°83° / 57°
October66° / 47°72° / 45°
November56° / 38°61° / 36°
December45° / 29°50° / 29°

Hot, Freezing, Rainy, Snowy Days: Rockville / Brentwood
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 023 / 2210 / 103 / 1
February0 / 020 / 188 / 102 / 2
March0 / 013 / 1210 / 111 / 0
April0 / 02 / 410 / 110 / 0
May1 / 00 / 012 / 120 / 0
June3 / 70 / 010 / 100 / 0
July6 / 140 / 010 / 100 / 0
August4 / 130 / 08 / 90 / 0
September1 / 40 / 09 / 80 / 0
October0 / 01 / 38 / 80 / 0
November0 / 08 / 119 / 100 / 0
December0 / 020 / 219 / 111 / 1
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 Brentwood with an average high temperature of 89.1°, which ranks it as warmer than most places in Tennessee. In Brentwood, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Brentwood are May, September and October.


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 Brentwood with an average of 26.1°. This is about average compared to other places in Tennessee.



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 Brentwood, there are 38.6 days annually when the high temperature is over 90°, which is hotter than most places in Tennessee.



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 Brentwood, there are 90.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Tennessee.



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 Brentwood, there are 0.5 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Tennessee.



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.


May is the wettest month in Brentwood with 6.1 inches of rain, and the driest month is August with 3.5 inches. The wettest season is Summer with 29% of yearly precipitation and 22% occurs in Winter, which is the driest season. The annual rainfall of 52.9 inches in Brentwood means that it is drier than most places in Tennessee.


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 Brentwood with 12.0 days of rain, and September is the driest month with only 7.9 rainy days. There are 119.8 rainy days annually in Brentwood, which is rainier than most places in Tennessee. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 21% 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 3.6 inches in Brentwood means that it is about average compared to other places in Tennessee.



January is the snowiest month in Rockville with 7.1 inches of snow, and 5 months of the year have significant snowfall.

January is the snowiest month in Brentwood with 1.6 inches of snow, and 2 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

Over 15 years ago

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

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Over 15 years ago

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

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Start Your Review of Rockville

Reviews for Brentwood    2 Reviews

Over 15 years ago

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

   |    Reply

Over 15 years ago

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

   |    Reply

Start Your Review of Brentwood

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ZIPS IN ROCKVILLE, MARYLAND
20850, 20851
ZIPS IN BRENTWOOD, TENNESSEE
37027

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