Climate · Maxwell

Maxwell, IA climate

Maxwell has cold winters and warm summers. A typical July afternoon reaches 84°, a January night drops to 12°, and about 27 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
84°
382nd hottest of 1,026 Iowa towns
January low
12°
438th mildest of 1,026 Iowa towns
Rain + melted snow
36 in
499th wettest of 1,026 Iowa towns
Snow a winter
27 in
240th least snowy of 1,020 Iowa towns
A normal year

What a year in Maxwell feels like

Winter

32° / 15°
Typical high / low · 13 days with an inch or more of snow

Spring

60° / 39°
Typical high / low · Last frost around Apr 26

Summer

83° / 62°
Typical high / low · 15 days reach 90° in a normal year

Fall

62° / 41°
Typical high / low · First frost around Oct 12
Best months to be outsideMayJunAugSepOctHighs of 62–84° and lows of 40° or more
Month by month

Maxwell 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
January29°12°0.9" 6.6"720 11° – 33°
February34°16°1.1" 7.8"716 14° – 36°
March47°28°2.0" 3.8"96 30° – 52°
April61°38°3.8" 0.7"110 41° – 56°
May72°50°5.1" 0130 55° – 68°
June81°60°5.4" 0120 68° – 74°
July84°64°4.2" 090 69° – 80°
August82°61°4.3" 090 66° – 77°
September76°53°3.7" 090 58° – 69°
October63°41°2.7" 0.4"90 45° – 57°
November47°29°1.8" 1.5"72 29° – 49°
December34°17°1.3" 6.5"812 10° – 34°
Year59°39°36.4"27.3"10956

“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 Maxwell

Maxwell gets 36 inches of rain and melted snow a year. June is the wettest month and January the driest. Rain or snow falls on about 109 days a year. Snow covers the ground about 56 days of the year.

36 in
Rain + melted snow a year
Less rain than 62% of U.S. towns
27 in
Snow in a normal winter
More snow than 53% 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
5.4"

Snowfall by month

Inches of snow
7.8"
Frost & the growing season

About 168 frost-free days a year

In half of years the last 32° night comes by April 26 and the first one by October 12. That leaves about 168 frost-free days for gardens, shorter than 63% of U.S. towns.

151
nights at or below 32° in a normal year
19
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 Maxwell

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Maxwell, 90% of that work is heating and 10% is cooling, so the furnace matters far more than the air conditioner.

90%heating
6,927 heating degree daysMore heating than 72% of U.S. towns
758 cooling degree daysLess cooling than 56% 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 Maxwell compares

Summer heat84° July high
Cooler than 53% of U.S. towns382nd hottest of 1,026 Iowa towns
Winter cold12° January low
Colder than 78% of U.S. towns438th mildest of 1,026 Iowa towns
Precipitation36" a year
Drier than 62% of U.S. towns499th wettest of 1,026 Iowa towns
Snow27" a winter
Snowier than 53% of U.S. towns240th least snowy of 1,020 Iowa towns
Growing season168 frost-free days
Shorter than 63% of U.S. towns345th 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

+0.8°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Maxwell averaged 0.8° warmer than the 1900s. The biggest change is in December (+2.3°). The shift is smaller than in 85% of U.S. towns.

❄️ Winter+1.9° now 24°, was 22°
🌷 Spring+0.8° now 49°, was 48°
☀️ Summer−0.0° now 72°, was 72°
🍂 Fall+0.5° now 51°, was 51°

Change by month1991–2020 average minus 1901–2000 average, at Maxwell’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 10° to 34°. June is the most reliable, staying within 6°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Maxwell’s climate

What is the coldest month in Maxwell?

January, with a typical high of 29° and a low of 12°.

What is the hottest month in Maxwell?

July, with a typical high of 84° and a low of 64°. About 15 days a year reach 90°.

How much snow does Maxwell get?

About 27 inches in a normal winter, most of it in February.

When is the first frost in Maxwell?

In half of years the first 32° night comes by October 12, and the last spring frost by April 26.

What is the rainiest month in Maxwell?

June, with 5.4 inches of rain and melted snow. The year totals 36 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Maxwell itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Ames 5 Se, IA (10 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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