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Rock Springs (WY) Climate by Month

The temperature in Rock Springs can vary quite a bit throughout the year. Temperatures can be warm during the warmest months, and very cold during the cooler months. The city sits in an arid zone with minimal moisture. Now, let’s break down all the climate details for a clearer picture.

Average day and night temperature

Visitors to Rock Springs can expect significant temperature changes throughout the year. Average daytime temperatures reach a comfortable 30°C in July. In January, the coolest month of the year, temperatures drop to a very cold -0°C. At night, expect cooler temperatures, averaging -11°C during this month.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Rock Springs experiences desert-like conditions in terms of precipitation with almost no rain/snowfall, generally receiving 232 mm annually. Rock Springs can be quite wet during May, receiving approximately 44 mm of precipitation over 11 rainy days. In contrast January, experiences much drier conditions, with 8.2 mm of snowfall, spread across 5 snowy days.

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

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

During the months of June 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 winter in Rock Springs?
    The coldest season / winter is in the following months: January, February and December.
  • Which is the warmest month in Rock Springs?
    July has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Rock Springs?
    The coldest month is January with an average maximum temperature of -0°C.
  • Which is the wettest month in Rock Springs?
    May tops the wettest month list with 44 mm of rainfall.
  • Which is the driest month in Rock Springs?
    January is the driest month with 8 mm of precipitation.

  • 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 Rock Springs (WY)

    Fri   Nov 22
    8°C | -8°C
    N 11 km/h
    partly cloudy and no rain

    partly cloudy and no rain

    Sat   Nov 23
    9°C | -2°C
    SW 18 km/h
    overcast and no rain

    overcast and no rain

    Sun   Nov 24
    1°C | -7°C
    W 32 km/h
    2.5 mm
    partly cloudy and snow

    partly cloudy and snow