Climate · Savannah

Savannah, MO climate

Savannah has chilly winters and warm summers. A typical July afternoon reaches 87°, a January night drops to 18°, and about 21 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
87°
175th coolest of 1,353 Missouri towns
January low
18°
249th coldest of 1,353 Missouri towns
Rain + melted snow
37 in
44th driest of 1,353 Missouri towns
Snow a winter
21 in
83rd snowiest of 1,335 Missouri towns
≈

Right about normal today. The forecast high is 72°, and a typical Oct 1 in Savannah peaks around 72°.Live forecast: National Weather Service · Normal: NOAA 1991–2020

A normal year

What a year in Savannah feels like

Winter

39° / 21°
Typical high / low · 7 days with an inch or more of snow

Spring

64° / 42°
Typical high / low · Last frost around Apr 17

Summer

85° / 65°
Typical high / low · 33 days reach 90° in a normal year

Fall

65° / 44°
Typical high / low · First frost around Oct 19
Best months to be outsideAprMayJunSepOctHighs of 62–84° and lows of 40° or more
Month by month

Savannah 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
January36°18°0.9" 5.5"711 20° – 39°
February41°22°1.3" 5.9"68 22° – 41°
March53°32°2.2" 2.2"93 36° – 58°
April64°42°3.7" 0.8"110 45° – 59°
May74°53°5.0" 0.1"120 58° – 72°
June83°63°4.8" 0100 69° – 77°
July87°67°5.2" 090 72° – 83°
August85°64°4.1" 090 69° – 80°
September78°56°3.7" 080 61° – 72°
October66°44°3.0" 0.3"80 48° – 59°
November52°32°2.0" 1.3"61 33° – 51°
December40°22°1.5" 5.0"67 17° – 38°
Year63°43°37.3"21.1"10130

“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 Savannah

Savannah gets 37 inches of rain and melted snow a year. July is the wettest month and January the driest. Rain or snow falls on about 101 days a year. Snow covers the ground about 30 days of the year.

37 in
Rain + melted snow a year
Less rain than 59% of U.S. towns
21 in
Snow in a normal winter
Less snow than 56% of U.S. towns
30 days
With 1"+ of snow on the ground
More than 52% of U.S. towns

Rain + melted snow by month

Inches of water
5.2"

Snowfall by month

Inches of snow
5.9"
Frost & the growing season

About 184 frost-free days a year

In half of years the last 32° night comes by April 17 and the first one by October 19. That leaves about 184 frost-free days for gardens, longer than 57% of U.S. towns.

130
nights at or below 32° in a normal year
9
nights below 0° in a normal year
33
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 Savannah

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Savannah, 83% of that work is heating and 17% is cooling, so the furnace matters far more than the air conditioner.

83%heating
5,718 heating degree daysLess heating than 51% of U.S. towns
1,167 cooling degree daysMore cooling than 68% 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 Savannah compares

Summer heat87° July high
Hotter than 63% of U.S. towns175th coolest of 1,353 Missouri towns
Winter cold18° January low
Colder than 58% of U.S. towns249th coldest of 1,353 Missouri towns
Precipitation37" a year
Drier than 59% of U.S. towns44th driest of 1,353 Missouri towns
Snow21" a winter
Less snow than 56% of U.S. towns83rd snowiest of 1,335 Missouri towns
Growing season184 frost-free days
Longer than 57% of U.S. towns281st shortest of 1,353 Missouri towns

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

Then and now

Warmer than it used to be

+0.6°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Savannah averaged 0.6° warmer than the 1900s. The biggest change is in March (+2.1°). The shift is smaller than in 94% of U.S. towns.

❄️ Winter+1.7° now 30°, was 28°
🌷 Spring+0.9° now 53°, was 52°
☀️ Summer−0.2° now 75°, was 75°
🍂 Fall+0.0° now 55°, was 55°

Change by month1991–2020 average minus 1901–2000 average, at Savannah’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 36° to 58°. June is the most reliable, staying within 8°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Savannah’s climate

What is the coldest month in Savannah?

January, with a typical high of 36° and a low of 18°.

What is the hottest month in Savannah?

July, with a typical high of 87° and a low of 67°. About 33 days a year reach 90°.

How much snow does Savannah get?

About 21 inches in a normal winter, most of it in February.

When is the first frost in Savannah?

In half of years the first 32° night comes by October 19, and the last spring frost by April 17.

What is the rainiest month in Savannah?

July, with 5.2 inches of rain and melted snow. The year totals 37 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Savannah itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Troy 3n, KS (16 mi, snow) and Cosby 2w, MO (9 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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