Saint Joseph
Missouri, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Saint Joseph, MO

  • Average high temperature in August: 86.5°F

The warmest month (with the highest average high temperature) is July (88.6°F).
The month with the lowest average high temperature is January (37.2°F).

  • Average low temperature in August: 64.5°F

The month with the highest average low temperature is July (67.9°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).

  • Average rainfall in August: 4.4"

The wettest month (with the highest rainfall) is May (4.9").
The driest month (with the lowest rainfall) is January (0.6").

  • Average rainfall days in August: 9 days

The month with the highest number of rainy days is May (11 days).
Months with the lowest number of rainy days are January, February, November and December (7 days).

  • Average snowfall in August: 0"

The month with the highest snowfall is January (4").
Months with the lowest snowfall are May, June, July, August and September (0").

  • Average daylight in August: 13.7h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.4h).

  • Average sunshine in August: 9h

The month with most sunshine is July (Average sunshine: 11h).
Months with least sunshine are November and December (Average sunshine: 5).

  • Average UV index in August: 8

The month with the highest UV index is July (UV index 10).
Months with the lowest UV index are January, November and December (UV index 2).

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