Climate · Mechanicsville

Mechanicsville, IA climate

Mechanicsville has cold, snowy winters and pleasant summers. A typical July afternoon reaches 83°, a January night drops to 12°, and about 34 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
83°
313th coolest of 1,026 Iowa towns
January low
12°
380th mildest of 1,026 Iowa towns
Rain + melted snow
38 in
147th wettest of 1,026 Iowa towns
Snow a winter
34 in
379th snowiest of 1,020 Iowa towns
A normal year

What a year in Mechanicsville feels like

Winter

31° / 16°
Typical high / low · 11 days with an inch or more of snow

Spring

59° / 38°
Typical high / low · Last frost around Apr 21

Summer

82° / 61°
Typical high / low · 9 days reach 90° in a normal year

Fall

61° / 40°
Typical high / low · First frost around Oct 15
Best months to be outsideMayJunJulAugSepOctHighs of 62–84° and lows of 40° or more
Month by month

Mechanicsville 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
January28°12°1.2" 8.7"920 11° – 33°
February33°16°1.4" 8.3"816 12° – 37°
March46°27°2.2" 4.0"106 29° – 52°
April60°38°3.9" 1.5"110 40° – 56°
May71°49°4.6" 0130 54° – 67°
June80°59°5.6" 0120 67° – 73°
July83°63°4.4" 0100 67° – 80°
August81°60°4.1" 0100 66° – 77°
September75°52°3.7" 090 57° – 68°
October62°40°3.0" 0.6"100 46° – 56°
November46°29°2.2" 2.2"81 30° – 48°
December33°18°1.7" 9.0"912 12° – 35°
Year58°39°38.0"34.3"11856

“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 Mechanicsville

Mechanicsville gets 38 inches of rain and melted snow a year. June is the wettest month and January the driest. Rain or snow falls on about 118 days a year. Snow covers the ground about 56 days of the year.

38 in
Rain + melted snow a year
Less rain than 56% of U.S. towns
34 in
Snow in a normal winter
More snow than 63% of U.S. towns
56 days
With 1"+ of snow on the ground
More than 69% of U.S. towns

Rain + melted snow by month

Inches of water
5.6"

Snowfall by month

Inches of snow
9.0"
Frost & the growing season

About 175 frost-free days a year

In half of years the last 32° night comes by April 21 and the first one by October 15. That leaves about 175 frost-free days for gardens, shorter than 54% of U.S. towns.

150
nights at or below 32° in a normal year
17
nights below 0° in a normal year
9
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 Mechanicsville

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

88%heating
6,573 heating degree daysMore heating than 67% of U.S. towns
882 cooling degree daysMore 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.

Compared with other towns

How Mechanicsville compares

Summer heat83° July high
Cooler than 64% of U.S. towns313th coolest of 1,026 Iowa towns
Winter cold12° January low
Colder than 77% of U.S. towns380th mildest of 1,026 Iowa towns
Precipitation38" a year
Drier than 56% of U.S. towns147th wettest of 1,026 Iowa towns
Snow34" a winter
Snowier than 63% of U.S. towns379th snowiest of 1,020 Iowa towns
Growing season175 frost-free days
Shorter than 54% of U.S. towns155th longest of 1,026 Iowa towns

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

Then and now

Warmer than it used to be

+0.9°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Mechanicsville averaged 0.9° warmer than the 1900s. The biggest change is in December (+2.1°). The shift is smaller than in 79% of U.S. towns.

❄️ Winter+1.7° now 23°, was 22°
🌷 Spring+1.2° now 49°, was 48°
☀️ Summer−0.0° now 71°, was 71°
🍂 Fall+0.6° now 51°, was 50°

Change by month1991–2020 average minus 1901–2000 average, at Mechanicsville’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 12° to 37°. June is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Mechanicsville’s climate

What is the coldest month in Mechanicsville?

January, with a typical high of 28° and a low of 12°.

What is the hottest month in Mechanicsville?

July, with a typical high of 83° and a low of 63°. About 9 days a year reach 90°.

How much snow does Mechanicsville get?

About 34 inches in a normal winter, most of it in December.

When is the first frost in Mechanicsville?

In half of years the first 32° night comes by October 15, and the last spring frost by April 21.

What is the rainiest month in Mechanicsville?

June, with 5.6 inches of rain and melted snow. The year totals 38 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Mechanicsville itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Cedar Rapids #1, IA (20 mi, snow) and Tipton, IA (11 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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