Weather in Boise in November

United States · 20-year averages, November

Shoulder season. November sits in between. You will get good days and you will lose some. Highs sit at 10.5 °C and the day is short; this is an indoors-with-excursions month, not an outdoors-all-day one.

November ranks 8 of 12 in Boise: past the worst of the year but short of September, which is the month to book if the dates are open.

Rain on 9 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Layers, and a genuinely waterproof outer — at 10.5 °C the difference between a good day and a miserable one is entirely down to what you are wearing.

What the averages hide

Averages flatten a month, and this one hides a few things: 13 nights fall below freezing. Across the twenty years measured, the hottest November day reached 24.4 °C and the coldest night fell to -13.1 °C.

November is moderately variable: 10 mm in the driest year against 80 mm in the wettest, around an average of 40 mm. Roughly two Novembers in three land near that average, and the third does something else entirely.

Wind is light at 7.6 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 64%.

How November sits in the year

The month is on the way down: 8.3 °C cooler than October, with December dropping another 6.3 °C. The first week and the last are not the same trip.

Daylight in November

9.7 hours of daylight, losing 1.1 hours across the month. That is between Boise's extremes of 15.4 and 9 hours, so days are long enough not to constrain the plan.

An inland climate

With no coast nearby, the year swings a fair way — 38.7 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage. At 823 m the air is thin enough to matter — sun that burns faster than the temperature suggests, and nights that cool off quickly.

How busy it gets

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

November in Boise versus nearby

If Boise is one option among several, the nearby comparison is worth making. Tri-Cities is close enough to be a coin toss — within a degree on temperature, 1 day less rain. Spokane is the weaker option in November — 3.4 °C cooler, 5 days more rain.

So: November is a compromise. September is 37 points better and is what Boise is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Boise

MonthHigh °CLow °CRain daysRain mmHumidity %Daylight hScore
January4.2-3.6 1051819.327
February7.1-1.5 8367310.544
March12.51.5 11476511.857
April16.53.9 9355813.474
May22.58.7 8385214.786
June28.113.3 6234415.485
July35.118.9 273215.148
August33.918.2 17291467
September27.913.3 3143412.691
October18.86.6 5274911.188
November10.50.9 940649.754
December4.2-3.4 126578924

See all twelve months in Boise, or where else to go in November.

Planning the rest of the trip

Built and maintained by Amit Sharma, Auckland, New Zealand. I build these sites so the answer is free and the data is public.

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