Altoona, WA Climate


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United States / Washington / No Metro Area / Wahkiakum County / Altoona / Zip Codes
Altoona, WA has a moderate climate with cool winters and mild summers. Average temperatures range from the low 40s in winter to the mid-70s in summer. Precipitation is higher than average throughout the year, including heavy snowfall during the winter months. Summer thunderstorms can also bring heavy precipitation and occasional flooding. Overall, Altoona experiences a pleasant and comfortable climate throughout the year, making it an ideal place to live or visit.

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Altoona is 6.9 (10=best), which means it is less comfortable than most places in Washington.

8.7 Summer - 5.1 Winter
August, July and September are the most pleasant months in Altoona, while December and January are the least comfortable months.

  ClimateAltoona, WashingtonUnited States
  99.9 in.38.1 in.
  3.7 in.27.8 in.
  188.2 days106.2 days
  126 days205 days
  70.9°85.8°
  36.2°21.7°
  6.97
  2.94.3
  46 ft.2443 ft.
Climate
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.

August is the hottest month for Altoona with an average high temperature of 71.8°, which ranks it as one of the coolest places in Washington. In Altoona, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Altoona are August, July and September.
In Altoona, there are 2.5 days annually when the high temperature is over 90°, which is cooler than most places in Washington.
December has the coldest nighttime temperatures for Altoona with an average of 35.5°. This is one of the warmest places in Washington.
In Altoona, there are 41.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Washington.
In Altoona, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Washington.
Humidity in Altoona is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are August, July and September.
November is the wettest month in Altoona with 16.1 inches of rain, and the driest month is July with 1.5 inches. The wettest season is Spring with 41% of yearly precipitation and 7% occurs in Autumn, which is the driest season. The annual rainfall of 99.9 inches in Altoona means that it is one of the wettest places in Washington.
November is the rainiest month in Altoona with 21.5 days of rain, and August is the driest month with only 7.0 rainy days. There are 188.2 rainy days annually in Altoona, which is one of the rainiest places in Washington. The rainiest season is Spring when it rains 32% of the time and the driest is Autumn with only a 15% chance of a rainy day.
An annual snowfall of 3.7 inches in Altoona means that it is less snowy than most places in Washington. February is the snowiest month in Altoona with 1.2 inches of snow, and 3 months of the year have significant snowfall.
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