Hot-summer humid continental

Jefferson, Iowa

Greene County, Iowa · Population 4.2k · 1,060 ft elevation

Living in Jefferson

Jefferson has a hot-summer humid continental climate: hot summers (July highs around 83°F) and bitterly cold winters (January lows around 9°F).

Precipitation is moderate at about 35″ a year, and it gets a fair bit of snow (32″ a season).

Skies are sunny (63% of possible sunshine). Summers get sticky, with about 29 muggy days a year.

Air quality is moderate: a median AQI of 44, with about 2 unhealthy-air days in the latest year.

Jefferson at a glance

Population
4.2k
Elevation
1,060 ft
Average daily high
58°F10th percentile
Average daily low
37°F9th percentile
Annual precipitation
35″26th percentile
Annual snowfall
32″72th percentile
Sunshine hours per year
2,808 hrs50th percentile
Median AQI
4462th percentile
Median home value
$127k13th percentile
Median rent
$745/mo8th percentile
Median household income
$54k21th percentile
Property tax rate
1.70%81th percentile
Top state income-tax rate
3.8%
Sales tax (state + local)
6.9%
Unemployment rate
1.5%
Homes with broadband
85%20th percentile
Walkability index
5.04th percentile
Average commute
24 min
Math proficiency (8th grade)
72%86th percentile
Reading proficiency (8th grade)
72%
Violent crime rate
121 per 100k37th percentile
Property crime rate
652 per 100k
Overall natural-hazard risk
325th percentile
Outdoor access
1616th percentile
Public land within 10 miles
0%
Public land within 30 miles
1%
Mountain relief within 30 miles
361 ft

Climate by month

Average monthly weather in Jefferson, Iowa
MonthHighLowPrecipitationSnowSunshine
Jan28°F9°F1.0″8.2″171 hrs
Feb33°F13°F1.3″8.2″191 hrs
Mar46°F25°F2.0″4.8″210 hrs
Apr60°F36°F3.6″0.9″227 hrs
May71°F49°F5.0″—262 hrs
Jun81°F59°F5.2″—301 hrs
Jul83°F63°F4.4″—345 hrs
Aug81°F60°F4.2″—307 hrs
Sep76°F51°F3.1″—258 hrs
Oct63°F39°F2.6″0.6″208 hrs
Nov46°F26°F1.7″1.5″175 hrs
Dec33°F16°F1.4″7.5″153 hrs

Near Jefferson

Largest places in Iowa

Sources: NOAA climate normals, NASA POWER, EPA air quality, U.S. Census Bureau, FEMA, FBI, EPA walkability and EDFacts. Methodology