Best Time to Drive: City of Janesville, WI to Denmark, WI

The best overall window to drive from City of Janesville, WI to Denmark, WI is May to October. May is especially comfortable, and 7 AM to 10 AM is usually the easiest departure window. The main things to watch are winter mix risk.

Best overall window

May to October

This stretch gives the steadiest mix of comfort, daylight, and lower weather friction.

Easiest departure pattern

7 AM to 10 AM

This is short enough that a mid-morning departure still keeps the whole drive comfortable.

Most challenging stretch

November to December

November is one of the harder months for this route because the weather friction stacks up faster.

Why This Route Scores Differently

This is a same-day corridor, so departure timing matters almost as much as the month you choose.

The current best window is May to October, when the drive is more likely to feel steady end to end.

This score uses multiple NOAA sample points along the route instead of a single state-wide climate average.

Month-by-Month Driving Conditions

Jan

Challenging 20°F

Feb

Challenging 24°F

Mar

Fair 34°F

Apr

Good 45°F

May

Great 57°F

Jun

Great 67°F

Jul

Great 72°F

Aug

Great 70°F

Sep

Great 63°F

Oct

Great 51°F

Nov

Challenging 38°F

Dec

Challenging 26°F

Best Good/Fair Challenging

Average Conditions by Month

January

Avg high / low 28 / 13°F

Moisture 1.6 in rain

Rating Challenging

Best departure

9 AM to 12 PM

Winter mix risk

Temperatures are workable, but not as easy as the best shoulder-season windows.

Rain disruption is usually limited compared with wetter months.

February

Avg high / low 32 / 16°F

Moisture 1.4 in rain

Rating Challenging

Best departure

9 AM to 12 PM

Winter mix risk

Temperatures are workable, but not as easy as the best shoulder-season windows.

Rain disruption is usually limited compared with wetter months.

March

Avg high / low 43 / 25°F

Moisture 1.9 in rain

Rating Fair

Best departure

9 AM to 12 PM

Winter mix risk

Temperatures are workable, but not as easy as the best shoulder-season windows.

Rain disruption is usually limited compared with wetter months.

April

Avg high / low 55 / 36°F

Moisture 3.5 in rain

Rating Good

Best departure

7 AM to 10 AM

Winter mix risk

Temperatures are workable, but not as easy as the best shoulder-season windows.

Weather is mixed enough that departure timing still matters.

May

Avg high / low 67 / 47°F

Moisture 3.6 in rain

Rating Great

Best departure

7 AM to 10 AM

Steady driving window

Daytime temperatures usually stay in a comfortable driving range.

Weather is mixed enough that departure timing still matters.

June

Avg high / low 77 / 57°F

Moisture 4.4 in rain

Rating Great

Best departure

7 AM to 10 AM

Wet stretches

Daytime temperatures usually stay in a comfortable driving range.

Weather is mixed enough that departure timing still matters.

July

Avg high / low 82 / 62°F

Moisture 3.6 in rain

Rating Great

Best departure

7 AM to 10 AM

Holiday traffic

Temperatures are workable, but not as easy as the best shoulder-season windows.

Weather is mixed enough that departure timing still matters.

August

Avg high / low 80 / 60°F

Moisture 3.8 in rain

Rating Great

Best departure

7 AM to 10 AM

Steady driving window

Temperatures are workable, but not as easy as the best shoulder-season windows.

Weather is mixed enough that departure timing still matters.

September

Avg high / low 73 / 53°F

Moisture 3.3 in rain

Rating Great

Best departure

7 AM to 10 AM

Steady driving window

Daytime temperatures usually stay in a comfortable driving range.

Weather is mixed enough that departure timing still matters.

October

Avg high / low 60 / 41°F

Moisture 2.8 in rain

Rating Great

Best departure

7 AM to 10 AM

Steady driving window

Temperatures are workable, but not as easy as the best shoulder-season windows.

Weather is mixed enough that departure timing still matters.

November

Avg high / low 46 / 30°F

Moisture 2.2 in rain

Rating Challenging

Best departure

9 AM to 12 PM

Winter mix risk Holiday traffic

Temperatures are workable, but not as easy as the best shoulder-season windows.

Rain disruption is usually limited compared with wetter months.

December

Avg high / low 33 / 19°F

Moisture 1.8 in rain

Rating Challenging

Best departure

9 AM to 12 PM

Winter mix risk Holiday traffic

Temperatures are workable, but not as easy as the best shoulder-season windows.

Rain disruption is usually limited compared with wetter months.

Seasonal Hazards on This Route

Winter mix risk

Jan - Dec

Even light snow or freezing precipitation can matter more than usual when this route turns into a same-day commitment.

Best Departure Time by Season

Spring

7 AM to 10 AM

This is short enough that a mid-morning departure still keeps the whole drive comfortable.

Summer

7 AM to 10 AM

This is short enough that a mid-morning departure still keeps the whole drive comfortable.

Fall

7 AM to 10 AM

This is short enough that a mid-morning departure still keeps the whole drive comfortable.

Winter

9 AM to 12 PM

Waiting for a little daylight and warmer pavement usually makes the drive easier.

How This Score Was Built

Source

Route-sampled NOAA climate normals

High confidence. Built from 3 NOAA-backed route checkpoints rather than a single statewide estimate.

Origin zone

Midwest

Destination zone

Midwest

Route sample points

Late route

Late route checkpoint

WI AFTON - JANESVILLE WWTP (4.2 mi away)

Late route

Late route checkpoint

WI statewide fallback (0 mi away)

Destination

Denmark, WI

WI DENMARK WWTP (0.8 mi away)

Ready to plan? See the full trip plan from City of Janesville, WI to Denmark, WI with stops, fuel costs, and directions.

Considering flying instead? Compare driving vs flying for this route.