Index, WA Weather


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The most pleasant months of the year for Index are August, July and September. In Index, there are 3 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for Index with an average high temperature of 76.8°, which ranks it as about average compared to other places in Washington. December is the snowiest month in Index with 5.8 inches of snow, and 5 months of the year have significant snowfall. Days with noticeable humidity are rare throughout the year.

Today's Weather - Index, WA

12 AM PST

Chance Light Rain

52°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
This AfternoonChance Light Rain56° / 46°WNW 6 mph
SaturdayLight Rain51° / 43°SSW 2 to 6 mph
SundayRain50° / 38°SW 7 to 10 mph
MondayRain And Snow then Showers And Thunderstorms47° / 37°WSW 8 to 13 mph
TuesdayRain And Snow Likely51° / 39°SSW 9 mph
WednesdayLight Rain Likely58° / 42°SSE 9 mph
ThursdayLight Rain Likely56° / 43°SSE 10 mph

Average Monthly High and Low (°F)
HighLow
January46° 34°
February49° 34°
March54° 36°
April59° 40°
May65° 45°
June70° 50°
July76° 53°
August77° 53°
September71° 48°
October60° 42°
November50° 37°
December44° 33°
Hot, Freezing, Rainy, Snowy Days: Index
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January012202
February011161
March07201
April02180
May00160
June00130
July1070
August1070
September00110
October02160
November06211
December013192

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

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