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Altoona (IA) Weather and Climate: A Comprehensive Guide

Altoona experiences great temperature shifts. The city's weather can transition from warm days to very cold weather. It receives mid-range precipitation levels. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

The climate in Altoona is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a comfortable 30°C in July, the warmest time of the year, to a very cold -1°C during cooler months like January.

At night, temperatures typically drop to an average of around -11°C during these months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Generally, Altoona receives mid-range precipitation levels, with 976 mm annually. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, June receives heavy rainfall, averaging 162 mm of precipitation, recorded across 13 rainy days. In contrast, the drier season, January brings less snowfall, with 19 mm over 6 snowy days. For more details, please visit our Altoona Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Seasonal changes in sunshine hours are quite dramatic in Altoona. While July receives considerable daily sunshine with up to 11.2 hours, December marks the darkest time of the year, where sunshine is scarce with only 4.3 hours of sunlight per day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Des Moines, the United States of America (19 KM, 12 Miles).

Daily hours of sunshine

Data from: Des Moines, the United States of America (19 KM, 12 Miles).

Forecast for Altoona (IA)

Fri   Dec 27
9°C | 5°C
SE 4 m/s
19 mm
overcast and heavy rain

overcast and heavy rain

Sat   Dec 28
10°C | 1°C
SW 3 m/s
partly cloudy and no rain

partly cloudy and no rain

Sun   Dec 29
8°C | 0°C
NW 4 m/s
overcast and no rain

overcast and no rain

The best time of year to visit Altoona in the United States of America

During the months of May and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is summer in Altoona?
    The hottest season / summer takes place in June, July, August and September.
  • When is winter in Altoona?
    The coldest season / winter is in the following months: January, February and December.
  • Which is the warmest month in Altoona?
    July has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Altoona?
    The coldest month is January with an average maximum temperature of -1°C.
  • Which is the wettest month in Altoona?
    June tops the wettest month list with 162 mm of rainfall.
  • Which is the driest month in Altoona?
    January is the driest month with 19 mm of precipitation.
  • Which is the sunniest month in Altoona?
    July is the sunniest month with an average of 335 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.