Climate and Average Weather Year Round in Gaithersburg Maryland, United States

In Gaithersburg, the summers are warm and humid; the winters are very cold, snowy, and windy; and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 24°F to 86°F and is rarely below 11°F or above 94°F.

Weather forecast In Gaithersburg
Weather forecast In Gaithersburg

Based on the tourism score, the best times of year to visit Gaithersburg for warm-weather activities are from early June to early July and from late July to late September.

Average Temperature in Gaithersburg 

The hot season lasts for 3.6 months, from May 29 to September 16, with an average daily high temperature above 77°F. The hottest month of the year in Gaithersburg is July, with an average high of 86°F and low of 66°F.

The cold season lasts for 3.1 months, from December 2 to March 4, with an average daily high temperature below 50°F. The coldest month of the year in Gaithersburg is January, with an average low of 26°F and high of 41°F.

Rainfall 

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Gaithersburg experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year in Gaithersburg. The month with the most rain in Gaithersburg is May, with an average rainfall of 3.5 inches.

The month with the least rain in Gaithersburg is January, with an average rainfall of 1.7 inches.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Gaithersburg experiences significant seasonal variation in monthly snowfall.

The snowy period of the year lasts for 4.4 months, from November 17 to March 30, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Gaithersburg is February, with an average snowfall of 7.8 inches.

The snowless period of the year lasts for 7.6 months, from March 30 to November 17. The least snow falls around July 19, with an average total accumulation of 0.0 inches.

Weather forecast March 22, 2023 - P3

Weather forecast March 22, 2023 - P3

Weather 20878

High temperature : 50°F

Low temperature : 41°F

- Overcast clouds, Wind speed 9.22 mph, wind out of the S. Visibility 7 mi, humidity 50% . Chance of Rain : 0 % .

Today's Air Quality - Weather 20878 : Moderate

- Air Quality Index : CO : 267.03 ; NH3 : 2.03 ; NO : 0 ; NO2 : 6.6 ; O3 : 69.38 ; PM10 : 7.47 ; PM2.5 : 6.3 ; SO2 : 1.33

Weather 20879

High temperature : 50°F

Low temperature : 40°F

- Overcast clouds, Wind speed 9.22 mph, wind out of the S. Visibility 7 mi, humidity 51% . Chance of Rain : 0 % .

Today's Air Quality - Weather 20879 : Moderate

- Air Quality Index : CO : 307.08 ; NH3 : 1.82 ; NO : 0 ; NO2 : 16.97 ; O3 : 60.8 ; PM10 : 8.97 ; PM2.5 : 7.2 ; SO2 : 2.74

Weather 20880

High temperature : 50°F

Low temperature : 41°F

- Overcast clouds, Wind speed 9.22 mph, wind out of the S. Visibility 7 mi, humidity 51% . Chance of Rain : 0 % .

Today's Air Quality - Weather 20880 : Moderate

- Air Quality Index : CO : 307.08 ; NH3 : 1.82 ; NO : 0 ; NO2 : 16.97 ; O3 : 60.8 ; PM10 : 8.97 ; PM2.5 : 7.2 ; SO2 : 2.74

Weather 20882

High temperature : 49°F

Low temperature : 40°F

- Overcast clouds, Wind speed 8.05 mph, wind out of the N. Visibility 7 mi, humidity 53% . Chance of Rain : 0 % .

Today's Air Quality - Weather 20882 : Moderate

- Air Quality Index : CO : 320.44 ; NH3 : 2.25 ; NO : 0 ; NO2 : 15.77 ; O3 : 65.09 ; PM10 : 10.59 ; PM2.5 : 8.51 ; SO2 : 3.07

Weather 46268

High temperature : 47°F

Low temperature : 42°F

- Overcast clouds, Wind speed 9.22 mph, wind out of the W. Visibility 6 mi, humidity 90% . Chance of Rain : 100 % .

Today's Air Quality - Weather 46268 : Moderate

- Air Quality Index : CO : 283.72 ; NH3 : 1.2 ; NO : 0 ; NO2 : 5.74 ; O3 : 66.52 ; PM10 : 12.99 ; PM2.5 : 12.54 ; SO2 : 2.12

Weather 20884

High temperature : 50°F

Low temperature : 41°F

- Overcast clouds, Wind speed 9.22 mph, wind out of the S. Visibility 7 mi, humidity 51% . Chance of Rain : 0 % .

Today's Air Quality - Weather 20884 : Moderate

- Air Quality Index : CO : 307.08 ; NH3 : 1.82 ; NO : 0 ; NO2 : 16.97 ; O3 : 60.8 ; PM10 : 8.97 ; PM2.5 : 7.2 ; SO2 : 2.74

Weather 20885

High temperature : 50°F

Low temperature : 41°F

- Overcast clouds, Wind speed 9.22 mph, wind out of the S. Visibility 7 mi, humidity 51% . Chance of Rain : 0 % .

Today's Air Quality - Weather 20885 : Moderate

- Air Quality Index : CO : 267.03 ; NH3 : 2.03 ; NO : 0 ; NO2 : 6.6 ; O3 : 69.38 ; PM10 : 7.47 ; PM2.5 : 6.3 ; SO2 : 1.33

Weather 20886

High temperature : 50°F

Low temperature : 40°F

- Overcast clouds, Wind speed 9.22 mph, wind out of the S. Visibility 7 mi, humidity 50% . Chance of Rain : 0 % .

Today's Air Quality - Weather 20886 : Moderate

- Air Quality Index : CO : 307.08 ; NH3 : 1.82 ; NO : 0 ; NO2 : 16.97 ; O3 : 60.8 ; PM10 : 8.97 ; PM2.5 : 7.2 ; SO2 : 2.74

Weather 11230

High temperature : 49°F

Low temperature : 39°F

- Overcast clouds, Wind speed 13 mph, wind out of the W. Visibility 7 mi, humidity 45% . Chance of Rain : 0 % .

Today's Air Quality - Weather 11230 : Poor

- Air Quality Index : CO : 574.11 ; NH3 : 2.88 ; NO : 6.09 ; NO2 : 74.03 ; O3 : 2.44 ; PM10 : 38.51 ; PM2.5 : 31.82 ; SO2 : 5.07

Weather 20891

High temperature : 51°F

Low temperature : 42°F

- Overcast clouds, Wind speed 9.22 mph, wind out of the S. Visibility 7 mi, humidity 50% . Chance of Rain : 0 % .

Today's Air Quality - Weather 20891 : Moderate

- Air Quality Index : CO : 307.08 ; NH3 : 1.82 ; NO : 0 ; NO2 : 16.97 ; O3 : 60.8 ; PM10 : 8.97 ; PM2.5 : 7.2 ; SO2 : 2.74

Weather 01852 - Lowell MA

clear sky

82°

clear sky

Feels like 82°
Sunrise/Sunset - 01852
Sunrise/Sunset

06:26/18:53

Temperature - 01852
High/Low

85°F

/

80°F

Humidity in 01852
Humidity

38%

Pressure
Pressure

1024 hPa

Visibility
Visibility

7 mi

Wind
Wind

4.61 mph