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Guymon (OK) Weather and Climate: A Comprehensive Guide

The temperature in Guymon can vary quite a bit throughout the year. Temperatures can be very warm during the warmest months, and cold during the cooler months. The city tends toward drier weather patterns. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

Visitors to Guymon can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a very warm 35°C in July to a chilly 9°C in the coolest month, January.

Nights are cooler, with lows often dropping to around -6°C during the colder months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Guymon's climate is marked by below-average rain/snowfall, accumulating 429 mm of precipitation yearly. The climate in Guymon shows significant variation throughout the year. Expect moderate rainfall in August, with an average of 79 mm of precipitation over 10 rainy days.

In contrast, January offers drier and sunnier days, with around 6.4 mm of rainfall over 3 rainy days. For more details, please visit our Guymon Precipitation page.

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

Forecast for Guymon (OK)

Sat   Dec 21
14°C | -9°C
N 4 m/s
clear and no rain

clear and no rain

Sun   Dec 22
18°C | -2°C
S 5 m/s
clear and no rain

clear and no rain

Mon   Dec 23
12°C | 0°C
NE 5 m/s
broken clouds and no rain

broken clouds and no rain

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

During the months of April 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:
  • Does Guymon have a dry season?
    Yes, the months of January, February and November are very dry.
  • Which is the warmest month in Guymon?
    July has an average maximum temperature of 35°C and is the warmest month of the year.
  • Which is the coldest month in Guymon?
    The coldest month is January with an average maximum temperature of 9°C.
  • Which is the wettest month in Guymon?
    August tops the wettest month list with 79 mm of rainfall.
  • Which is the driest month in Guymon?
    January is the driest month with 6 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.