Climate · Norwich

Norwich, OH climate

Norwich has chilly, snowy winters and pleasant summers. A typical July afternoon reaches 83°, a January night drops to 18°, and about 33 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
83°
811th coolest of 2,573 Ohio towns
January low
18°
258th coldest of 2,573 Ohio towns
Rain + melted snow
39 in
540th driest of 2,573 Ohio towns
Snow a winter
33 in
459th snowiest of 2,536 Ohio towns
A normal year

What a year in Norwich feels like

Winter

36° / 21°
Typical high / low · 12 days with an inch or more of snow

Spring

59° / 38°
Typical high / low · Last frost around Apr 25

Summer

82° / 60°
Typical high / low · 15 days reach 90° in a normal year

Fall

63° / 43°
Typical high / low · First frost around Oct 25
Best months to be outsideMayJunJulAugSepOctHighs of 62–84° and lows of 40° or more
Month by month

Norwich 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
January34°18°2.7" 9.7"1415 17° – 37°
February37°20°2.2" 8.2"1212 14° – 38°
March46°28°2.8" 5.1"126 30° – 51°
April60°38°3.8" 1.6"131 43° – 55°
May71°49°4.0" 0130 53° – 67°
June80°58°4.3" 0120 63° – 73°
July83°62°4.0" 0100 68° – 77°
August82°60°3.4" 0100 66° – 75°
September76°53°3.3" 090 61° – 69°
October63°42°3.2" 0110 49° – 59°
November50°33°2.9" 1.5"102 35° – 48°
December38°24°2.6" 6.6"128 20° – 42°
Year60°41°39.2"32.7"13843

“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 Norwich

Norwich gets 39 inches of rain and melted snow a year. June is the wettest month and February the driest. Rain or snow falls on about 138 days a year. Snow covers the ground about 43 days of the year.

39 in
Rain + melted snow a year
Less rain than 52% of U.S. towns
33 in
Snow in a normal winter
More snow than 61% of U.S. towns
43 days
With 1"+ of snow on the ground
More than 61% of U.S. towns

Rain + melted snow by month

Inches of water
4.3"

Snowfall by month

Inches of snow
9.7"
Frost & the growing season

About 183 frost-free days a year

In half of years the last 32° night comes by April 25 and the first one by October 25. That leaves about 183 frost-free days for gardens, longer than 56% of U.S. towns.

124
nights at or below 32° in a normal year
5
nights below 0° in a normal year
15
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 Norwich

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

88%heating
6,083 heating degree daysMore heating than 58% of U.S. towns
827 cooling degree daysLess cooling than 51% 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 Norwich

Norwich and its neighbors

Norwich borders 4 towns with climate data. January nights across them vary by 1.0°. Richmond has the coldest January nights (18°) and Sherman the hottest July afternoons (84°). Norwich’s January low is 18° and its July high 83°.

Peru: January low 19°, July high 84°Fairfield: January low 18°, July high 83°New Haven: January low 18°, July high 83°Lyme: January low 19°, July high 84°Venice: January low 18°, July high 83°Greenfield: January low 18°, July high 83°Sherman: January low 19°, July high 84°Willard: January low 18°, July high 83°Richmond: January low 18°, July high 83°Norwich: January low 18°, July high 83° NorwichGreenfieldShermanWillardRichmond
ColderMilder18° to 19°
Richmond17.9° −0.5°
Willard18.0° −0.4°
Norwich18.4°
Greenfield18.4° same
Sherman18.9° +0.5°

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

Compared with other towns

How Norwich compares

Summer heat83° July high
Cooler than 62% of U.S. towns811th coolest of 2,573 Ohio towns
Winter cold18° January low
Colder than 54% of U.S. towns258th coldest of 2,573 Ohio towns
Precipitation39" a year
Drier than 52% of U.S. towns540th driest of 2,573 Ohio towns
Snow33" a winter
Snowier than 61% of U.S. towns459th snowiest of 2,536 Ohio towns
Growing season183 frost-free days
Longer than 56% of U.S. towns936th longest of 2,573 Ohio towns

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

Then and now

Warmer than it used to be

+1.0°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Norwich averaged 1.0° warmer than the 1900s. The biggest change is in December (+2.3°). The shift is smaller than in 69% of U.S. towns.

❄️ Winter+1.5° now 29°, was 27°
🌷 Spring+1.1° now 49°, was 48°
☀️ Summer+0.7° now 71°, was 70°
🍂 Fall+0.8° now 53°, was 52°

Change by month1991–2020 average minus 1901–2000 average, at Norwich’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. February swings the most: between 1991 and 2020 its average temperature ranged from 14° to 38°. September is the most reliable, staying within 8°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Norwich’s climate

What is the coldest month in Norwich?

January, with a typical high of 34° and a low of 18°.

What is the hottest month in Norwich?

July, with a typical high of 83° and a low of 62°. About 15 days a year reach 90°.

How much snow does Norwich get?

About 33 inches in a normal winter, most of it in January.

When is the first frost in Norwich?

In half of years the first 32° night comes by October 25, and the last spring frost by April 25.

What is the rainiest month in Norwich?

June, with 4.3 inches of rain and melted snow. The year totals 39 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Norwich itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Norwalk WWTP, OH (14 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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