Guest, Sign inJoin

Post to Lake Barcroft

We’ll email a one-tap link to publish your post. No password, and nothing is public until you click it.
Already a member? Sign in
Beach4-in-springtimePhoto: William D. O'Neil · CC BY-SA 4.0
Climate in Lake Barcroft · NOAA 1991–2020 normals

A middle-of-the-road climate: Lake Barcroft is close to most U.S. towns on every count

The warmest part of a July day comes in at 88° on average. In January, nights here are milder than in 67% of U.S. towns. Decade by decade the climate has edged up, 1.7° above 1901–2000. Garden planting can start around April 9; autumn frost returns near October 31.

Less snow than 69% of U.S. towns#24Least snow  of 226 in VA
Milder January nights than 67% of U.S. towns#88Mildest winters  of 226 in VA
All VA rankings →

A year in Lake Barcroft at a glance

Each month’s typical high and low, and what it brings.

Jan43°27°
Feb47°28°
Mar55°35°
Apr67°45° Last frost ~Apr 91 day 90°+
May75°54° 3 days 90°+
Jun83°63° 9 days 90°+
Jul88°68° 17 days 90°+Wettest
Aug86°67° 11 days 90°+
Sep79°60° 4 days 90°+
Oct68°48° First frost ~Oct 31
Nov now57°38°
Dec47°31°

What stands out about Lake Barcroft’s climate

Compared with towns across the U.S., with Lake Barcroft’s place in Virginia beside it.

A normal year

What a year in Lake Barcroft feels like

Typical highs and lows by season and by month, from NOAA’s 30-year normals.

Winter
46° / 28°
3 days with 1"+ of snow
Spring
66° / 45°
Last frost around Apr 9
Summer
85° / 66°
44 days reach 90°
Fall
68° / 48°
First frost around Oct 31
Best months to be outsideAprMayJunSepOctHighs of 62–84° and lows of 40° or more
Frost, heat & 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 by October 31. Frost and day counts come from NOAA’s station at Dalecarlia Reservoir, MD, 6 miles from the town’s center, 120 ft lower.

96
nights at or below 32° in a normal year
115th fewest of 226 in Virginia
Fewer freezing nights than 63% of U.S. towns
0
nights at or below 0°
None in a normal year
44
days that reach 90°
23rd most of 226 in Virginia
More 90° days than 72% of U.S. towns
2
days that reach 100°
17th most of 226 in Virginia
More 100° days than 78% of U.S. towns
7bUSDA zone
Plant hardiness zone 7b

The 2023 USDA map puts Lake Barcroft’s center in zone 7b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 9°. Plant labels use the zone; frost dates tell you when to plant.

Freezing nights by month

Average nights at or below 32°

25
JFMAMJJASOND

90° days by month

Average days at 90° or more

17
JFMAMJJASOND
Rain & snow

About 6 inches of snow a winter

Snow, measured at Dalecarlia Reservoir, MD, falls mostly in January. Precipitation (rain plus melted snow) adds up to 44 inches a year; July is the wettest month and February the driest. Rain or snow falls on about 123 days a year.

44"
Rain + melted snow a year
94th wettest of 226 in Virginia
Wetter than 56% of U.S. towns
5.8"
Snow in a normal winter
24th least snowy of 226 in Virginia
Less snow than 69% of U.S. towns
6 days
With 1"+ of snow on the ground
28th fewest of 206 in Virginia
Fewer days with snow on the ground than 64% of U.S. towns

Rain + melted snow by month

Inches of water

4.6"
JFMAMJJASOND

Snowfall by month

Inches of snow

3"
JFMAMJJASOND
Heating & cooling

Heating and cooling a home in Lake Barcroft

77% of the work is heating. Months averaging under 55° run from November through March.

4,506 heating degree daysLess heating than 66% of U.S. towns
1,338 cooling degree daysMore cooling than 69% of U.S. towns

Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Dalecarlia Reservoir, MD.

Living here

Living with Lake Barcroft’s climate

What the numbers mean for a garden, a free afternoon and a bad-weather day.

The garden window

202 frost-free days in zone 7b. The last frost comes by Apr 9 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 31.

Get outside

Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October. 0.6 miles of trails are waiting.

Parks & trails →
Storms and extremes

Of the yearly building losses FEMA expects in Lake Barcroft from natural hazards, river flooding is the largest share (73%); heat waves, cold waves, winter storms and ice storms together are 7%. Normals are averages; the hazards page covers the extremes.

Natural hazards →
Next door

Lake Barcroft and its neighbors

Every town next door is within a degree of Lake Barcroft in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.

Lincolnia: January low 27°, July high 88°Alexandria: January low 27°, July high 89°Arlington: January low 26°, July high 88°Falls Church: January low 26°, July high 87°Idylwood: January low 26°, July high 87°Merrifield: January low 26°, July high 87°Wakefield: January low 27°, July high 87°Woodburn: January low 26°, July high 87°North Springfield: January low 27°, July high 88°Springfield: January low 27°, July high 88°Bailey's Crossroads: January low 27°, July high 88°West Falls Church: January low 26°, July high 87°Annandale: January low 27°, July high 88°Seven Corners: January low 27°, July high 88°Lake Barcroft: January low 27°, July high 88°Lake BarcroftBailey's CrossroadsWest Falls ChurchAnnandaleSeven Corners
ColderMilder26° to 27°
West Falls Church26.4° about the same
Lake Barcroft26.6°
Bailey's Crossroads26.6° about the same
Annandale26.6° about the same
Seven Corners26.6° about the same

Climates most like Lake Barcroft’s, farther away

TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.

TownJan. lowJuly highPrecip.Snow
Lake Barcroft, VA27°88°44"5.8"
Kingsport, TN28°87°45"5.1"
Lewisville, NC28°88°45"7.0"
Ashland, KY24°87°45"6.2"
Ironton, OH24°87°44"6.2"

Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.

Then and now

Warmer than it used to be

The last 30 years in Lake Barcroft averaged 1.7° warmer than the 1900s. The biggest change is in December (+2.9°).

+1.7°1991–2020 vs. 1901–2000

A bigger shift than in 71% of U.S. towns.

Winter+2.2°now 37°, was 35°
Spring+1.3°now 55°, was 54°
Summer+1.8°now 76°, was 74°
Fall+1.4°now 58°, was 57°

Change by month

JanFebMarAprMayJunJulAugSepOctNovDec

The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.

Compared with other towns

How Lake Barcroft compares

Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Lake Barcroft’s place among Virginia’s.

Summer heat88° July high
Hotter July afternoons than 65% of U.S. towns111th hottest of 226 in Virginia
Winter cold27° January low
Milder January nights than 67% of U.S. towns88th mildest of 226 in Virginia
Precipitation44" a year
Wetter than 56% of U.S. towns94th wettest of 226 in Virginia
Snow5.8" a winter
Less snow than 69% of U.S. towns24th least snowy of 226 in Virginia
Hot days44 days at 90°+
More 90° days than 72% of U.S. towns23rd most of 226 in Virginia
Freezing nights96 a year
Fewer freezing nights than 63% of U.S. towns115th fewest of 226 in Virginia
Growing season202 frost-free days
A longer frost-free season than 68% of U.S. towns85th longest of 226 in Virginia
Month by month

Lake Barcroft weather by month

Highs, lows and precipitation from NOAA’s grid at Lake Barcroft’s center; snow, wet days and snow on the ground from Dalecarlia Reservoir, MD. 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January43°27°3.0"2.9"10227° – 42°
February47°28°2.7"1.4"9227° – 45°
March55°35°3.7"0.7"12139° – 55°
April67°45°3.4"0.0"11052° – 61°
May75°54°4.2"0.0"12060° – 71°
June83°63°4.2"0.0"10069° – 78°
July88°68°4.6"0.0"10073° – 81°
August86°67°3.7"0.0"10071° – 80°
September79°60°4.3"0.0"10066° – 74°
October68°48°3.8"0.0"9054° – 64°
November57°38°3.1"0.0"9041° – 52°
December47°31°3.6"0.8"11130° – 50°
Year66°47°44.1"5.8"1236
Year to year

How much a month can swing

A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 30° to 50°. September is the most reliable, staying within 8°.

Coldest to warmest month in 30 yearsNormal
Sources

Where Lake Barcroft’s numbers come from

Normals are 30-year averages, not a forecast. How TownRatings reads climate data →

  • Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Lake Barcroft’s center.
  • Snow: Dalecarlia Reservoir, MD.
  • Frost, freezing nights, 90° and 100° days, heating and cooling: Dalecarlia Reservoir, MD, 6 miles from the town’s center, 120 ft lower; the nearest station that passes our checks for distance, height and agreement with the grid.
  • Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
  • Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
  • Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).

Common questions about Lake Barcroft’s climate

What is the weather like in Lake Barcroft?

A typical July afternoon reaches 88°, a January night drops to 27°, and about 6 inches of snow falls in a normal winter. Milder January nights than 67% of U.S. towns; hotter July afternoons than 65% of U.S. towns.

How cold does it get in Lake Barcroft in winter?

January nights average 27°. About 96 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 27°.

How much snow does Lake Barcroft get?

About 5.8 inches in a normal winter at Dalecarlia Reservoir, MD, most of it in January, with snow on the ground about 6 days a year.

How hot does it get in Lake Barcroft?

July, with a typical high of 88° and a low of 68°. About 44 days a year reach 90° and 2 reach 100° (Dalecarlia Reservoir, MD).

When is the first and last frost in Lake Barcroft?

In half of years the last spring frost (32°) comes by April 9 and the first fall frost by October 31, about 202 frost-free days, at Dalecarlia Reservoir, MD.

What growing zone is Lake Barcroft in?

Zone 7b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 9°.

What is the best time of year to visit Lake Barcroft?

By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.

Is Lake Barcroft getting warmer?

Yes: 1991–2020 averaged 1.7° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 71% of U.S. towns.

Neighbors talk weather

Gardens, snow, and the best days of the year in Lake Barcroft.

Town Square →
Ask your neighbors

Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.