Ryan Park, WY climate
Ryan Park has cold winters and cool summers. A typical July afternoon reaches 74°, a January night drops to 13°.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Ryan Park feels like
Winter
Spring
Summer
Fall
Ryan Park weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 30° | 13° | 2.9" | 16° – 27° |
| February | 31° | 12° | 2.6" | 17° – 28° |
| March | 39° | 18° | 2.8" | 23° – 36° |
| April | 46° | 24° | 3.6" | 29° – 40° |
| May | 56° | 32° | 3.2" | 39° – 49° |
| June | 67° | 40° | 1.6" | 48° – 58° |
| July | 74° | 46° | 1.2" | 56° – 64° |
| August | 72° | 45° | 1.3" | 54° – 63° |
| September | 64° | 38° | 1.9" | 46° – 56° |
| October | 50° | 29° | 2.5" | 33° – 45° |
| November | 37° | 19° | 2.5" | 18° – 35° |
| December | 29° | 12° | 2.6" | 15° – 24° |
| Year | 50° | 27° | 28.7" |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Ryan Park
Ryan Park gets 29 inches of rain and melted snow a year. April is the wettest month and July the driest.
About 106 frost-free days a year
In half of years the last 32° night comes by June 2 and the first one by September 19. That leaves about 106 frost-free days for gardens, shorter than 99% of U.S. towns.
Heating and cooling a home in Ryan Park
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Ryan Park, 100% of that work is heating and 0% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
How Ryan Park compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Ryan Park averaged 1.8° warmer than the 1900s. The biggest change is in March (+4.1°). The shift is larger than in 87% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Ryan Park’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. November swings the most: between 1991 and 2020 its average temperature ranged from 18° to 35°. August is the most reliable, staying within 9°.
Common questions about Ryan Park’s climate
What is the coldest month in Ryan Park?
December, with a typical high of 29° and a low of 12°.
What is the hottest month in Ryan Park?
July, with a typical high of 74° and a low of 46°.
When is the first frost in Ryan Park?
In half of years the first 32° night comes by September 19, and the last spring frost by June 2.
What is the rainiest month in Ryan Park?
April, with 3.6 inches of rain and melted snow. The year totals 29 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Ryan Park itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Centennial 1ne, WY (19 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.