Climate · Dunn Loring

Dunn Loring, VA climate

Dunn Loring has chilly winters and warm summers. A typical July afternoon reaches 87°, a January night drops to 26°, and about 6 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
87°
249th coolest of 700 Virginia towns
January low
26°
338th mildest of 700 Virginia towns
Rain + melted snow
44 in
295th driest of 700 Virginia towns
Snow a winter
6 in
95th least snowy of 698 Virginia towns
A normal year

What a year in Dunn Loring feels like

Winter

45° / 28°
Typical high / low · 3 days with an inch or more of snow

Spring

65° / 44°
Typical high / low · Last frost around Apr 9

Summer

85° / 65°
Typical high / low · 44 days reach 90° in a normal year

Fall

67° / 48°
Typical high / low · First frost around Oct 31
Best months to be outsideAprMayJunSepOctHighs of 62–84° and lows of 40° or more
Month by month

Dunn Loring weather by month

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

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January43°26°3.0" 2.9"102 26° – 41°
February46°28°2.7" 1.4"92 26° – 44°
March54°34°3.7" 0.7"121 38° – 54°
April66°44°3.4" 0110 51° – 60°
May74°54°4.2" 0120 59° – 70°
June82°63°4.2" 0100 68° – 77°
July87°68°4.5" 0100 72° – 80°
August85°66°3.6" 0100 70° – 79°
September78°59°4.3" 0100 65° – 73°
October67°47°3.8" 090 53° – 64°
November56°37°3.1" 090 41° – 52°
December46°30°3.6" 0.8"111 29° – 49°
Year65°46°44.0"5.8"1236

“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 Dunn Loring

Dunn Loring gets 44 inches of rain and melted snow a year. July is the wettest month and February the driest. Rain or snow falls on about 123 days a year. Snow covers the ground about 6 days of the year.

44 in
Rain + melted snow a year
More rain than 65% of U.S. towns
6 in
Snow in a normal winter
Less snow than 78% of U.S. towns
6 days
With 1"+ of snow on the ground
Fewer than 72% of U.S. towns

Rain + melted snow by month

Inches of water
4.5"

Snowfall by month

Inches of snow
2.9"
Frost & the growing season

About 202 frost-free days a year

In half of years the last 32° night comes by April 9 and the first one by October 31. That leaves about 202 frost-free days for gardens, longer than 73% of U.S. towns.

96
nights at or below 32° in a normal year
0
nights below 0° in a normal year
44
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 Dunn Loring

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Dunn Loring, 77% of that work is heating and 23% is cooling.

77%heating
4,506 heating degree daysLess heating than 74% of U.S. towns
1,338 cooling degree daysMore cooling than 74% 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.

Around Dunn Loring

Dunn Loring and its neighbors

Dunn Loring borders 4 towns with climate data. January nights across them vary by 0.4°. Vienna has the coldest January nights (26°) and Merrifield the hottest July afternoons (87°). Dunn Loring’s January low is 26° and its July high 87°.

Wolf Trap: January low 26°, July high 87°Oakton: January low 26°, July high 87°Pimmit Hills: January low 26°, July high 87°McLean: January low 26°, July high 87°Woodburn: January low 26°, July high 87°Mantua: January low 26°, July high 87°West Falls Church: January low 26°, July high 87°Fairfax: January low 26°, July high 87°Falls Church: January low 26°, July high 87°Vienna: January low 26°, July high 87°Tysons: January low 26°, July high 87°Merrifield: January low 26°, July high 87°Idylwood: January low 26°, July high 87°Dunn Loring: January low 26°, July high 87° Dunn LoringViennaTysonsMerrifieldIdylwood
ColderMilder26° to 26°
Vienna25.9° −0.2°
Dunn Loring26.1°
Tysons26.1° same
Idylwood26.2° +0.1°
Merrifield26.3° +0.2°

Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.

Compared with other towns

How Dunn Loring compares

Summer heat87° July high
Hotter than 63% of U.S. towns249th coolest of 700 Virginia towns
Winter cold26° January low
Milder than 76% of U.S. towns338th mildest of 700 Virginia towns
Precipitation44" a year
Wetter than 65% of U.S. towns295th driest of 700 Virginia towns
Snow6" a winter
Less snow than 78% of U.S. towns95th least snowy of 698 Virginia towns
Growing season202 frost-free days
Longer than 73% of U.S. towns267th longest of 700 Virginia towns

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

Then and now

Warmer than it used to be

+1.7°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Dunn Loring averaged 1.7° warmer than the 1900s. The biggest change is in December (+2.8°). The shift is larger than in 79% of U.S. towns.

❄️ Winter+2.1° now 37°, was 34°
🌷 Spring+1.4° now 54°, was 53°
☀️ Summer+1.7° now 75°, was 73°
🍂 Fall+1.4° now 58°, was 56°

Change by month1991–2020 average minus 1901–2000 average, at Dunn Loring’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 29° to 49°. September is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Dunn Loring’s climate

What is the coldest month in Dunn Loring?

January, with a typical high of 43° and a low of 26°.

What is the hottest month in Dunn Loring?

July, with a typical high of 87° and a low of 68°. About 44 days a year reach 90°.

How much snow does Dunn Loring get?

About 6 inches in a normal winter, most of it in January.

When is the first frost in Dunn Loring?

In half of years the first 32° night comes by October 31, and the last spring frost by April 9.

What is the rainiest month in Dunn Loring?

July, with 4.5 inches of rain and melted snow. The year totals 44 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Dunn Loring itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Dalecarlia Rsvr, MD (7 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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