Best Time to Drive: Westbrook, ME to Lebanon, ME

The best overall window to drive from Westbrook, ME to Lebanon, ME is August. July is especially comfortable, and 7 AM to 10 AM is usually the easiest departure window. The main things to watch are heavy rain and ponding.

Best overall window

August

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

October 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 August, 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

Fair 14°F

Feb

Fair 16°F

Mar

Challenging 21°F

Apr

Fair 29°F

May

Good 36°F

Jun

Good 42°F

Jul

Good 46°F

Aug

Good 45°F

Sep

Good 40°F

Oct

Challenging 32°F

Nov

Challenging 25°F

Dec

Challenging 18°F

Best Good/Fair Challenging

Average Conditions by Month

January

Avg high / low 21 / 7°F

Moisture 3.6 in rain

Rating Fair

Best departure

9 AM to 12 PM

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.

February

Avg high / low 24 / 8°F

Moisture 3.6 in rain

Rating Fair

Best departure

9 AM to 12 PM

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.

March

Avg high / low 29 / 13°F

Moisture 4.5 in rain

Rating Challenging

Best departure

9 AM to 12 PM

Wet stretches

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

Weather is mixed enough that departure timing still matters.

April

Avg high / low 38 / 20°F

Moisture 4.6 in rain

Rating Fair

Best departure

9 AM to 12 PM

Wet stretches

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 45 / 27°F

Moisture 3.8 in rain

Rating Good

Best departure

9 AM to 12 PM

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.

June

Avg high / low 51 / 34°F

Moisture 4.5 in rain

Rating Good

Best departure

9 AM to 12 PM

Wet stretches

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

Weather is mixed enough that departure timing still matters.

July

Avg high / low 54 / 37°F

Moisture 4 in rain

Rating Good

Best departure

7 AM to 10 AM

Wet stretches 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 54 / 36°F

Moisture 3.8 in rain

Rating Good

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 49 / 31°F

Moisture 3.9 in rain

Rating Good

Best departure

9 AM to 12 PM

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.

October

Avg high / low 40 / 24°F

Moisture 5.4 in rain

Rating Challenging

Best departure

7 AM to 10 AM

Storm-prone

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

Rain is common enough that extra buffer time makes sense.

November

Avg high / low 32 / 18°F

Moisture 4.4 in rain

Rating Challenging

Best departure

9 AM to 12 PM

Wet stretches Holiday traffic

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

Weather is mixed enough that departure timing still matters.

December

Avg high / low 25 / 12°F

Moisture 4.8 in rain

Rating Challenging

Best departure

9 AM to 12 PM

Wet stretches Holiday traffic

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

Weather is mixed enough that departure timing still matters.

Seasonal Hazards on This Route

Heavy rain and ponding

Oct

Short intense downpours can make a same-day drive feel longer than the raw route time suggests.

Best Departure Time by Season

Spring

9 AM to 12 PM

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

Summer

7 AM to 10 AM

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

Fall

9 AM to 12 PM

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

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

Northeast

Destination zone

Northeast

Route sample points

Late route

Late route checkpoint

ME PORTLAND 5.5 WNW (3.7 mi away)

Late route

Late route checkpoint

ME SANFORD 2 NNW (3.2 mi away)

Destination

Lebanon, ME

ME SANFORD 2 NNW (5.6 mi away)

Ready to plan? See the full trip plan from Westbrook, ME to Lebanon, ME with stops, fuel costs, and directions.

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