Climate ▸Forecast ▸December ▸January ▸
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember

Greybull (WY) Weather and Climate: A Comprehensive Guide

The temperature in Greybull can vary quite a bit throughout the year. Temperatures can be very 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 maximum day and minimum night temperature

Visitors to Greybull can expect significant temperature changes throughout the year. Average daytime temperatures reach a very warm 33°C in July. In January, the coolest month of the year, temperatures drop to a very cold -2°C.

At night, you can expect cooler temperatures, with averages dropping to around -15°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Greybull experiences desert-like conditions in terms of precipitation with almost no rain/snowfall, generally receiving 170 mm annually. Greybull can be quite wet during May, receiving approximately 39 mm of precipitation over 10 rainy days.

In contrast February, experiences much drier conditions, with 5.3 mm of snow/rainfall, spread across 3 snowy/rainy days. For more details, please visit our Greybull Precipitation page.

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

Forecast for Greybull (WY)

Sun   Dec 22
7°C | -5°C
W 3 m/s
broken clouds and no rain

broken clouds and no rain

Mon   Dec 23
6°C | -6°C
SE 2 m/s
1.4 mm
overcast and  chance of slight rain

overcast and chance of slight rain

Tue   Dec 24
7°C | -8°C
S 2 m/s
broken clouds and no rain

broken clouds and no rain

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

During the months of May 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 summer in Greybull?
    The hottest season / summer takes place in June, July, August and September.
  • When is winter in Greybull?
    The coldest season / winter is in the following months: January, February and December.
  • Which is the warmest month in Greybull?
    July has an average maximum temperature of 33°C and is the warmest month of the year.
  • Which is the coldest month in Greybull?
    The coldest month is January with an average maximum temperature of -2°C.
  • Which is the wettest month in Greybull?
    May tops the wettest month list with 39 mm of rainfall.
  • Which is the driest month in Greybull?
    February is the driest month with 5 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.