ClimateForecastNovemberDecember >>

Saint Peters (MO) Climate by Month

The temperature in Saint Peters can vary quite a bit throughout the year. Temperatures can be very warm during the warmest months, and cold during the cooler months. It also has a notably wet climate with much precipitation. Let's now guide you through the climate details for a complete overview.

Average day and night temperature

Visitors to Saint Peters can expect significant temperature changes throughout the year. Average daytime temperatures range from a very warm 31°C in July, the warmest time of the year, to a chilly 5°C during cooler months like January. At night, temperatures typically average around -6°C during these months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Saint Peters is known for its substantial rain/snowfall, with annual precipitation reaching 1136 mm. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, May receives high rainfall, averaging 129 mm of precipitation, recorded across 14 rainy days. In contrast, the drier season, January brings less snow/rainfall, with 45 mm over 7 snowy/rainy days.

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 Saint Peters. While July receives considerable daily sunshine with up to 10.4 hours, December marks the darkest time of the year, where sunshine is scarce with only 4.3 hours of sunlight per day.

Monthly hours of sunshine

Data from: St. Louis, the United States of America (41 KM, 26 Miles).

Daily hours of sunshine

Data from: St. Louis, the United States of America (41 KM, 26 Miles).

The best time of year to visit Saint Peters 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 Saint Peters?
    July has an average maximum temperature of 31°C and is the warmest month of the year.
  • Which is the coldest month in Saint Peters?
    The coldest month is January with an average maximum temperature of 5°C.
  • Which is the wettest month in Saint Peters?
    May tops the wettest month list with 129 mm of rainfall.
  • Which is the driest month in Saint Peters?
    January is the driest month with 45 mm of precipitation.
  • Which is the sunniest month in Saint Peters?
    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 Saint Peters (MO)

    Wed   Nov 20
    11°C | 3°C
    W 29 km/h
    almost clear and no rain

    almost clear and no rain

    Thu   Nov 21
    7°C | 0°C
    NW 29 km/h
    almost clear and no rain

    almost clear and no rain

    Fri   Nov 22
    8°C | 1°C
    NW 18 km/h
    broken clouds and no rain

    broken clouds and no rain