Jackson Temperatures: Averages by Month
The numbers here tell you how hot and cold the weather usually is in Jackson, Wyoming during each month of the year.
The average high and low temperatures are listed below monthly and annually for the mountain resort town, in both degrees Fahrenheit and Celsius.
Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.
To find out how often it rises over 70, 80 or 90 °F each month in Jackson, scroll down farther. There are also monthly and yearly counts of days with cold weather.
All the numbers are long-term historical averages based on climate data gathered from 1991 to 2020.
| High °F | Low °F | High °C | Low °C | |
|---|---|---|---|---|
| 26 | 6 | January | -3 | -14 |
| 30 | 9 | February | -1 | -13 |
| 40 | 18 | March | 5 | -8 |
| 50 | 26 | April | 10 | -3 |
| 60 | 32 | May | 16 | 0 |
| 70 | 38 | June | 21 | 3 |
| 79 | 41 | July | 26 | 5 |
| 78 | 40 | August | 26 | 4 |
| 68 | 33 | September | 20 | 0 |
| 55 | 25 | October | 13 | -4 |
| 38 | 16 | November | 3 | -9 |
| 26 | 7 | December | -3 | -14 |
| 52 | 24 | Year | 11 | -4 |
Days of Hot Weather in Jackson
Jackson rarely sees a really hot day. Only five days a year on average make it into the 90s Fahrenheit. Temperatures of 100 °F (38 °C) or more are not expected at this mountain town.
| 70 °F 21 °C |
80 °F 27 °C |
90 °F 32 °C | |
|---|---|---|---|
| January | 0 | 0 | 0 |
| February | 0 | 0 | 0 |
| March | 0 | 0 | 0 |
| April | 1 | 0 | 0 |
| May | 9 | 1 | 0 |
| June | 20 | 7 | 0 |
| July | 30 | 21 | 3 |
| August | 29 | 18 | 1 |
| September | 19 | 4 | 0 |
| October | 4 | 0 | 0 |
| November | 0 | 0 | 0 |
| December | 0 | 0 | 0 |
| Year | 112 | 52 | 5 |
How Often Jackson Has Cold Temperatures
Freezing temperatures happen most nights here and can show up in any month. Jackson typically has 236 frosty nights a year.
On an average of 61 days annually the thermometer never rises above freezing. Days that chilly can occur from October to April. For most of December and January the temperature remains below freezing.
| 0 °F -18 °C |
10 °F -12 °C |
20 °F -8 °C | |
|---|---|---|---|
| January | 11 | 18 | 24 |
| February | 8 | 14 | 21 |
| March | 2 | 6 | 16 |
| April | 0 | 1 | 7 |
| May | 0 | 0 | 2 |
| June | 0 | 0 | 0 |
| July | 0 | 0 | 0 |
| August | 0 | 0 | 0 |
| September | 0 | 0 | 1 |
| October | 0 | 1 | 10 |
| November | 2 | 8 | 19 |
| December | 11 | 17 | 24 |
| Year | 35 | 65 | 123 |
Reference
NOAA National Centers for Environmental Information (NCEI). Climate Normals.