Climate · Mountain Lake Park

Mountain Lake Park, MD climate

Mountain Lake Park has chilly, snowy winters and pleasant summers, with plenty of rain. A typical July afternoon reaches 79°, a January night drops to 19°, and about 105 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
79°
12th coolest of 536 Maryland towns
January low
19°
12th coldest of 536 Maryland towns
Rain + melted snow
52 in
3rd wettest of 536 Maryland towns
Snow a winter
105 in
2nd snowiest of 508 Maryland towns
A normal year

What a year in Mountain Lake Park feels like

Winter

38° / 21°
Typical high / low · 31 days with an inch or more of snow

Spring

59° / 35°
Typical high / low · Last frost around May 6

Summer

78° / 55°
Typical high / low · 1 days reach 90° in a normal year

Fall

61° / 39°
Typical high / low · First frost around Oct 9
Best months to be outsideMayJunJulAugSepHighs of 62–84° and lows of 40° or more
Month by month

Mountain Lake Park weather by month

Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.

MonthHighLowRain + meltSnowWet days30-yr range
January36°19°4.0" 30.2"17 20° – 36°
February39°20°3.7" 22.0"14 18° – 39°
March48°26°4.5" 19.6"15 31° – 47°
April60°35°4.5" 3.7"15 42° – 53°
May69°45°5.4" 016 51° – 64°
June76°53°5.2" 015 61° – 68°
July79°58°5.1" 013 64° – 72°
August78°56°4.4" 012 63° – 72°
September72°49°3.9" 012 58° – 66°
October61°38°3.7" 1.6"13 47° – 55°
November50°29°3.3" 6.4"12 33° – 45°
December40°23°4.1" 21.4"16 21° – 42°
Year59°38°51.6"104.9"171

“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.

Rain & snow

Rain and snow in Mountain Lake Park

Mountain Lake Park gets 52 inches of rain and melted snow a year. May is the wettest month and November the driest. Rain or snow falls on about 171 days a year.

52 in
Rain + melted snow a year
More rain than 90% of U.S. towns
105 in
Snow in a normal winter
More snow than 97% of U.S. towns
171 days
With rain or snow (0.01"+)

Rain + melted snow by month

Inches of water
5.4"

Snowfall by month

Inches of snow
30"
Frost & the growing season

About 156 frost-free days a year

In half of years the last 32° night comes by May 6 and the first one by October 9. That leaves about 156 frost-free days for gardens, shorter than 75% of U.S. towns.

145
nights at or below 32° in a normal year
6
nights below 0° in a normal year
1
days that reach 90° in a normal year

Freezing nights by month

Average nights at or below 32°

90° days by month

Average days at 90° or more
Heating & cooling

Heating and cooling a home in Mountain Lake Park

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Mountain Lake Park, 92% of that work is heating and 8% is cooling, so the furnace matters far more than the air conditioner.

92%heating
6,064 heating degree daysMore heating than 57% of U.S. towns
520 cooling degree daysLess cooling than 75% of U.S. towns

Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.

Compared with other towns

How Mountain Lake Park compares

Summer heat79° July high
Cooler than 91% of U.S. towns12th coolest of 536 Maryland towns
Winter cold19° January low
Colder than 52% of U.S. towns12th coldest of 536 Maryland towns
Precipitation52" a year
Wetter than 90% of U.S. towns3rd wettest of 536 Maryland towns
Snow105" a winter
Snowier than 97% of U.S. towns2nd snowiest of 508 Maryland towns
Growing season156 frost-free days
Shorter than 75% of U.S. towns8th shortest of 536 Maryland towns

Compared with every U.S. town and city on TownTapestry, each counted once.

Then and now

Warmer than it used to be

+1.1°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Mountain Lake Park averaged 1.1° warmer than the 1900s. The biggest change is in December (+2.3°). The shift is smaller than in 61% of U.S. towns.

❄️ Winter+1.5° now 30°, was 28°
🌷 Spring+1.0° now 47°, was 46°
☀️ Summer+0.9° now 67°, was 66°
🍂 Fall+0.9° now 50°, was 49°

Change by month1991–2020 average minus 1901–2000 average, at Mountain Lake Park’s spot on NOAA’s grid

Year to year

How much a month can swing

A normal is an average, and real years wander around it. December swings the most: between 1991 and 2020 its average temperature ranged from 21° to 42°. June is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Mountain Lake Park’s climate

What is the coldest month in Mountain Lake Park?

January, with a typical high of 36° and a low of 19°.

What is the hottest month in Mountain Lake Park?

July, with a typical high of 79° and a low of 58°. About 1 days a year reach 90°.

How much snow does Mountain Lake Park get?

About 105 inches in a normal winter, most of it in January.

When is the first frost in Mountain Lake Park?

In half of years the first 32° night comes by October 9, and the last spring frost by May 6.

What is the rainiest month in Mountain Lake Park?

May, with 5.4 inches of rain and melted snow. The year totals 52 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Mountain Lake Park itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Oakland 1 Se, MD (1 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.

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