The remote server returned an error: (400) Bad Request.The remote server returned an error: (400) Bad Request. 2025 Compare Climate & Weather: Plains, MT vs Lewiston, ID

2025 Compare Climate & Weather:
Plains, MT vs Lewiston, ID

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Highlights

On average, there are 169 sunny days per year in Lewiston. Plains averages 154 sunny days per year. The US average is 205 sunny days.

Lewiston, Idaho gets 15.8 inches of rain, on average, per year. Plains, Montana gets 18.9 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Lewiston averages 12.5 inches of snow per year. Plains averages 39.4 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Lewiston, Idaho
Summer High: the July high is around 88.3 degrees
Winter Low: the January low is 28.5
Rain: averages 15.8 inches of rain a year
Snow: averages 12.5 inches of snow a year

Plains, Montana
Summer High: the July high is around 86 degrees
Winter Low: the January low is 20.9
Rain: averages 18.9 inches of rain a year
Snow: averages 39.4 inches of snow a year

BestPlaces Comfort Index
Lewiston

The annual BestPlaces Comfort Index for Lewiston is 7.2 (10=best), which means it is one of the most pleasant places in Idaho.

7.2 / 10
June, September and August are the most pleasant months in Lewiston, while December and January are the least comfortable months.

Plains

The annual BestPlaces Comfort Index for Plains is 6.6 (10=best), which means it is about average compared to other places in Montana.

6.6 / 10
July, June and September are the most pleasant months in Plains, while December and January are the least comfortable months.

Average Monthly High / Low (°F)
MonthPlains, MTLewiston, ID
January35° / 21°41° / 29°
February41° / 22°46° / 30°
March51° / 27°54° / 34°
April60° / 32°62° / 39°
May69° / 39°70° / 46°
June76° / 45°78° / 52°
July86° / 49°88° / 58°
August86° / 48°88° / 57°
September75° / 41°78° / 49°
October59° / 33°62° / 40°
November43° / 26°48° / 33°
December33° / 19°39° / 27°
Hot, Freezing, Rainy, Snowy Days: Plains / Lewiston
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 028 / 2013 / 126 / 3
February0 / 024 / 1611 / 104 / 2
March0 / 024 / 1112 / 123 / 1
April0 / 015 / 411 / 111 / 0
May1 / 15 / 113 / 110 / 0
June2 / 41 / 011 / 90 / 0
July11 / 150 / 07 / 50 / 0
August11 / 140 / 06 / 40 / 0
September2 / 43 / 08 / 50 / 0
October0 / 014 / 410 / 80 / 0
November0 / 022 / 1214 / 133 / 1
December0 / 028 / 2213 / 127 / 4
July is the hottest month for Plains with an average high temperature of 86.0°, which ranks it as warmer than most places in Montana. In Plains, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Plains are June, September and August.

July is the hottest month for Lewiston with an average high temperature of 88.3°, which ranks it as warmer than most places in Idaho. In Lewiston, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Lewiston are September, June and May.
December has the coldest nighttime temperatures for Plains with an average of 19.4°. This is warmer than most places in Montana.

December has the coldest nighttime temperatures for Lewiston with an average of 27.1°. This is one of the warmest places in Idaho.

In Plains, there are 26.5 days annually when the high temperature is over 90°, which is hotter than most places in Montana.

In Lewiston, there are 36.8 days annually when the high temperature is over 90°, which is hotter than most places in Idaho.

In Plains, there are 164.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Montana.

In Lewiston, there are 88.5 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Idaho.

In Plains, there are 5.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Montana.

In Lewiston, there are 0.9 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Idaho.

November is the wettest month in Plains with 2.3 inches of rain, and the driest month is July with 1.0 inches. The wettest season is Winter with 27% of yearly precipitation and 22% occurs in Autumn, which is the driest season. The annual rainfall of 18.9 inches in Plains means that it is wetter than most places in Montana.


November is the wettest month in Lewiston with 1.8 inches of rain, and the driest month is July with 0.7 inches. The wettest season is Summer with 31% of yearly precipitation and 17% occurs in Autumn, which is the driest season. The annual rainfall of 15.8 inches in Lewiston means that it is about average compared to other places in Idaho.

November is the rainiest month in Plains with 14.3 days of rain, and August is the driest month with only 6.3 rainy days. There are 129.5 rainy days annually in Plains, which is one of the rainiest places in Montana. The rainiest season is Spring when it rains 29% of the time and the driest is Autumn with only a 19% chance of a rainy day.

November is the rainiest month in Lewiston with 12.8 days of rain, and August is the driest month with only 4.2 rainy days. There are 110.4 rainy days annually in Lewiston, which is rainier than most places in Idaho. The rainiest season is Spring when it rains 30% of the time and the driest is Autumn with only a 16% chance of a rainy day.

An annual snowfall of 39.4 inches in Plains means that it is about average compared to other places in Montana.

An annual snowfall of 12.5 inches in Lewiston means that it is one of the least snowy places in Idaho.
December is the snowiest month in Plains with 13.0 inches of snow, and 6 months of the year have significant snowfall.

December is the snowiest month in Lewiston with 4.5 inches of snow, and 5 months of the year have significant snowfall.

DID YOU KNOW?

Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.

Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.

Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.

Reviews for Plains    2 Reviews
Jill · Sherman Oaks, CA
re:
Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

   |    Reply
NC For Me · Apex, NC
re:
Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

   |    Reply

Start Your Review of Plains

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Reviews for Lewiston    2 Reviews
Jill · Sherman Oaks, CA
re:
Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

   |    Reply
NC For Me · Apex, NC
re:
Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

   |    Reply

Start Your Review of Lewiston

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