Climate · Sparta

Sparta, IN climate

Sparta has chilly winters and warm summers. A typical July afternoon reaches 85°, a January night drops to 22°, and about 16 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
85°
689th hottest of 1,978 Indiana towns
January low
22°
384th mildest of 1,978 Indiana towns
Rain + melted snow
47 in
487th wettest of 1,978 Indiana towns
Snow a winter
16 in
611th least snowy of 1,972 Indiana towns
A normal year

What a year in Sparta feels like

Winter

41° / 25°
Typical high / low · 6 days with an inch or more of snow

Spring

64° / 42°
Typical high / low · Last frost around Apr 30

Summer

84° / 63°
Typical high / low · 7 days reach 90° in a normal year

Fall

66° / 45°
Typical high / low · First frost around Oct 16
Best months to be outsideAprMayJunSepOctHighs of 62–84° and lows of 40° or more
Month by month

Sparta weather by month

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

MonthHighLowRain + meltSnowWet days30-yr range
January38°22°3.4" 5.0"8 22° – 40°
February43°25°3.0" 5.1"7 22° – 43°
March53°33°4.0" 2.0"9 36° – 56°
April65°42°4.8" 0.1"11 48° – 60°
May74°52°5.2" 011 57° – 71°
June82°61°4.8" 09 67° – 74°
July85°64°4.3" 08 69° – 80°
August84°63°3.4" 06 69° – 79°
September78°56°3.2" 07 63° – 73°
October67°44°3.4" 0.3"6 51° – 61°
November54°34°3.4" 08 37° – 49°
December43°27°3.8" 3.4"9 22° – 45°
Year64°44°46.7"15.9"99

“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 Sparta

Sparta gets 47 inches of rain and melted snow a year. May is the wettest month and February the driest. Rain or snow falls on about 99 days a year.

47 in
Rain + melted snow a year
More rain than 76% of U.S. towns
16 in
Snow in a normal winter
Less snow than 64% of U.S. towns
99 days
With rain or snow (0.01"+)

Rain + melted snow by month

Inches of water
5.2"

Snowfall by month

Inches of snow
5.1"
Frost & the growing season

About 168 frost-free days a year

In half of years the last 32° night comes by April 30 and the first one by October 16. That leaves about 168 frost-free days for gardens, shorter than 63% of U.S. towns.

128
nights at or below 32° in a normal year
5
nights below 0° in a normal year
7
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 Sparta

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Sparta, 89% of that work is heating and 11% is cooling, so the furnace matters far more than the air conditioner.

89%heating
5,679 heating degree daysLess heating than 52% of U.S. towns
711 cooling degree daysLess cooling than 60% 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 Sparta

Sparta and its neighbors

Sparta borders 3 towns with climate data. January nights across them vary by 1.0°. Manchester has the coldest January nights (22°) and Hogan the hottest July afternoons (86°). Sparta’s January low is 22° and its July high 85°.

York: January low 22°, July high 85°Jackson: January low 21°, July high 85°Franklin: January low 21°, July high 84°Miller: January low 22°, July high 86°Lawrenceburg: January low 23°, July high 86°Caesar Creek: January low 23°, July high 85°Union: January low 23°, July high 86°Pike: January low 23°, July high 86°Washington: January low 23°, July high 86°Washington: January low 22°, July high 84°Brown: January low 22°, July high 85°Center: January low 23°, July high 87°Aurora: January low 23°, July high 87°Manchester: January low 22°, July high 85°Clay: January low 23°, July high 85°Hogan: January low 23°, July high 86°Sparta: January low 22°, July high 85° SpartaManchesterClayHogan
ColderMilder21° to 23°
Manchester21.8° −0.3°
Sparta22.1°
Clay22.6° +0.5°
Hogan22.8° +0.7°

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

Compared with other towns

How Sparta compares

Summer heat85° July high
Hotter than 51% of U.S. towns689th hottest of 1,978 Indiana towns
Winter cold22° January low
Milder than 63% of U.S. towns384th mildest of 1,978 Indiana towns
Precipitation47" a year
Wetter than 76% of U.S. towns487th wettest of 1,978 Indiana towns
Snow16" a winter
Less snow than 64% of U.S. towns611th least snowy of 1,972 Indiana towns
Growing season168 frost-free days
Shorter than 63% of U.S. towns148th shortest 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

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

The last 30 years in Sparta averaged 1.1° warmer than the 1900s. The biggest change is in December (+2.3°). The shift is smaller than in 59% of U.S. towns.

❄️ Winter+1.8° now 33°, was 31°
🌷 Spring+1.4° now 53°, was 52°
☀️ Summer+0.4° now 73°, was 73°
🍂 Fall+0.8° now 55°, was 55°

Change by month1991–2020 average minus 1901–2000 average, at Sparta’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 22° to 45°. June is the most reliable, staying within 8°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Sparta’s climate

What is the coldest month in Sparta?

January, with a typical high of 38° and a low of 22°.

What is the hottest month in Sparta?

July, with a typical high of 85° and a low of 64°. About 7 days a year reach 90°.

How much snow does Sparta get?

About 16 inches in a normal winter, most of it in February.

When is the first frost in Sparta?

In half of years the first 32° night comes by October 16, and the last spring frost by April 30.

What is the rainiest month in Sparta?

May, with 5.2 inches of rain and melted snow. The year totals 47 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Sparta itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Farmers Retreat, IN (8 mi, snow) and Milan 5 Ne, IN (5 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.

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