Climate · Dune Acres

Dune Acres, IN climate

Dune Acres has chilly, snowy winters and pleasant summers. A typical July afternoon reaches 82°, a January night drops to 19°, and about 40 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
82°
17th coolest of 1,978 Indiana towns
January low
19°
758th coldest of 1,978 Indiana towns
Rain + melted snow
38 in
126th driest of 1,978 Indiana towns
Snow a winter
40 in
118th snowiest of 1,972 Indiana towns
A normal year

What a year in Dune Acres feels like

Winter

35° / 21°
Typical high / low · 13 days with an inch or more of snow

Spring

58° / 39°
Typical high / low · Last frost around Apr 22

Summer

81° / 62°
Typical high / low · 11 days reach 90° in a normal year

Fall

62° / 45°
Typical high / low · First frost around Oct 27
Best months to be outsideMayJunJulAugSepOctHighs of 62–84° and lows of 40° or more
Month by month

Dune Acres 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
January33°19°2.3" 16.0"1317 15° – 37°
February36°22°2.0" 9.7"913 17° – 39°
March47°30°2.3" 6.0"115 29° – 52°
April58°39°3.5" 0.6"110 40° – 54°
May69°49°4.3" 0120 53° – 66°
June79°59°4.2" 0120 64° – 74°
July82°64°3.8" 0100 68° – 79°
August81°63°4.0" 0100 67° – 78°
September75°56°3.5" 0100 60° – 70°
October63°45°3.5" 0120 50° – 60°
November49°34°2.7" 0.7"111 34° – 49°
December37°24°2.2" 7.3"1210 18° – 41°
Year59°42°38.1"40.3"13146

“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 Dune Acres

Dune Acres gets 38 inches of rain and melted snow a year. May is the wettest month and February the driest. Rain or snow falls on about 131 days a year. Snow covers the ground about 46 days of the year.

38 in
Rain + melted snow a year
Less rain than 56% of U.S. towns
40 in
Snow in a normal winter
More snow than 70% of U.S. towns
46 days
With 1"+ of snow on the ground
More than 64% of U.S. towns

Rain + melted snow by month

Inches of water
4.3"

Snowfall by month

Inches of snow
16"
Frost & the growing season

About 188 frost-free days a year

In half of years the last 32° night comes by April 22 and the first one by October 27. That leaves about 188 frost-free days for gardens, longer than 62% of U.S. towns.

117
nights at or below 32° in a normal year
5
nights below 0° in a normal year
11
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 Dune Acres

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Dune Acres, 88% of that work is heating and 12% is cooling, so the furnace matters far more than the air conditioner.

88%heating
6,171 heating degree daysMore heating than 60% of U.S. towns
808 cooling degree daysLess cooling than 53% 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 Dune Acres

Dune Acres and its neighbors

Dune Acres borders 2 towns with climate data. January nights across them vary by 0.4°. Burns Harbor has both the coldest January nights (18°) and the hottest July afternoons (83°). Dune Acres’s January low is 19° and its July high 82°.

Chesterton: January low 17°, July high 83°Portage: January low 19°, July high 83°Westchester: January low 19°, July high 82°Portage: January low 17°, July high 83°Liberty: January low 17°, July high 83°Porter: January low 19°, July high 82°Burns Harbor: January low 18°, July high 83°Dune Acres: January low 19°, July high 82° Dune AcresPorterBurns Harbor
ColderMilder17° to 19°
Burns Harbor18.1° −0.4°
Dune Acres18.5°
Porter18.5° same

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

Compared with other towns

How Dune Acres compares

Summer heat82° July high
Cooler than 71% of U.S. towns17th coolest of 1,978 Indiana towns
Winter cold19° January low
Colder than 54% of U.S. towns758th coldest of 1,978 Indiana towns
Precipitation38" a year
Drier than 56% of U.S. towns126th driest of 1,978 Indiana towns
Snow40" a winter
Snowier than 70% of U.S. towns118th snowiest of 1,972 Indiana towns
Growing season188 frost-free days
Longer than 62% of U.S. towns486th longest of 1,978 Indiana towns

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

Then and now

Warmer than it used to be

+1.2°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Dune Acres averaged 1.2° warmer than the 1900s. The biggest change is in December (+2.5°). The shift is smaller than in 56% of U.S. towns.

❄️ Winter+1.9° now 28°, was 27°
🌷 Spring+1.3° now 49°, was 47°
☀️ Summer+0.6° now 71°, was 71°
🍂 Fall+0.7° now 53°, was 53°

Change by month1991–2020 average minus 1901–2000 average, at Dune Acres’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. March swings the most: between 1991 and 2020 its average temperature ranged from 29° to 52°. June is the most reliable, staying within 10°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Dune Acres’s climate

What is the coldest month in Dune Acres?

January, with a typical high of 33° and a low of 19°.

What is the hottest month in Dune Acres?

July, with a typical high of 82° and a low of 64°. About 11 days a year reach 90°.

How much snow does Dune Acres get?

About 40 inches in a normal winter, most of it in January.

When is the first frost in Dune Acres?

In half of years the first 32° night comes by October 27, and the last spring frost by April 22.

What is the rainiest month in Dune Acres?

May, with 4.3 inches of rain and melted snow. The year totals 38 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Dune Acres itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Indiana Dunes Nl, IN (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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