ClimateForecastDecemberJanuary >>

Eureka (MO) Climate by Month

The temperature in Eureka can vary quite a bit throughout the year. Temperatures can be very warm during the warmest months, and cold during the cooler months. It is also known for its large amounts of rain/snowfall. Let’s explore the climate details in depth to provide you with a complete overview.

Average day and night temperature

Visitors to Eureka can expect significant temperature changes throughout the year. Typically, daytime temperatures range from a very warm 31°C in July to a chilly 5°C in the coolest month, January. Nights are cooler, with temperatures generally dropping to -6°C, particularly during the colder months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Eureka is known for its substantial rain/snowfall, with annual precipitation reaching 1076 mm. The climate in Eureka shows significant variation throughout the year. Expect high rainfall in April, with an average of 123 mm of precipitation over 12 rainy days.

In contrast, January offers drier and sunnier days, with around 50 mm of snow/rainfall over 7 snowy/rainy days.

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

Sunshine over the year

For those who appreciate different seasons, Eureka serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 10.4 hours of sunshine daily, and embrace the darker days in December, offering only 4.3 hours of daily sunlight.

Monthly hours of sunshine

Data from: St. Louis, the United States of America (39 KM, 24 Miles).

Daily hours of sunshine

Data from: St. Louis, the United States of America (39 KM, 24 Miles).

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

During the months of April, May and October 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:
  • Which is the warmest month in Eureka?
    July has an average maximum temperature of 31°C and is the warmest month of the year.
  • Which is the coldest month in Eureka?
    The coldest month is January with an average maximum temperature of 5°C.
  • Which is the wettest month in Eureka?
    April tops the wettest month list with 123 mm of rainfall.
  • Which is the driest month in Eureka?
    January is the driest month with 50 mm of precipitation.
  • Which is the sunniest month in Eureka?
    July is the sunniest month with an average of 311 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.

    Forecast for Eureka (MO)

    Sat   Dec 14
    10°C | 1°C
    SE 29 km/h
    33 mm
    overcast and heavy rain

    overcast and heavy rain

    Sun   Dec 15
    12°C | 6°C
    SE 11 km/h
    partly cloudy and no rain

    partly cloudy and no rain

    Mon   Dec 16
    15°C | 3°C
    W 18 km/h
    2.1 mm
    almost clear and  chance of slight rain

    almost clear and chance of slight rain