Rock, KS climate
Rock has chilly winters and hot summers. A typical July afternoon reaches 92°, a January night drops to 22°, and about 8 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Rock feels like
Winter
Spring
Summer
Fall
Rock weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 45° | 22° | 0.9" | 2.1" | 3 | 29° – 44° |
| February | 50° | 26° | 1.4" | 1.4" | 6 | 31° – 46° |
| March | 60° | 35° | 2.6" | 1.0" | 6 | 40° – 58° |
| April | 69° | 45° | 3.5" | 0 | 9 | 50° – 63° |
| May | 78° | 55° | 5.6" | 0 | 10 | 61° – 73° |
| June | 87° | 65° | 5.4" | 0 | 9 | 71° – 81° |
| July | 92° | 69° | 4.0" | 0 | 8 | 75° – 88° |
| August | 91° | 68° | 3.9" | 0 | 8 | 73° – 87° |
| September | 83° | 59° | 3.3" | 0 | 6 | 66° – 79° |
| October | 71° | 47° | 3.2" | 0 | 7 | 52° – 64° |
| November | 58° | 34° | 1.8" | 0.3" | 5 | 40° – 54° |
| December | 47° | 25° | 1.4" | 3.0" | 5 | 24° – 41° |
| Year | 69° | 46° | 36.9" | 7.8" | 82 |
“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 Rock
Rock gets 37 inches of rain and melted snow a year. May is the wettest month and January the driest. Rain or snow falls on about 82 days a year.
About 189 frost-free days a year
In half of years the last 32° night comes by April 16 and the first one by October 22. That leaves about 189 frost-free days for gardens, longer than 63% of U.S. towns.
Heating and cooling a home in Rock
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Rock, 75% of that work is heating and 25% is cooling.
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 Rock 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 Rock averaged 0.8° warmer than the 1900s. The biggest change is in January (+2.5°). The shift is smaller than in 82% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Rock’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. March swings the most: between 1991 and 2020 its average temperature ranged from 40° to 58°. June is the most reliable, staying within 11°.
Common questions about Rock’s climate
What is the coldest month in Rock?
January, with a typical high of 45° and a low of 22°.
What is the hottest month in Rock?
July, with a typical high of 92° and a low of 69°. About 55 days a year reach 90°.
How much snow does Rock get?
About 8 inches in a normal winter, most of it in December.
When is the first frost in Rock?
In half of years the first 32° night comes by October 22, and the last spring frost by April 16.
What is the rainiest month in Rock?
May, with 5.6 inches of rain and melted snow. The year totals 37 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Rock itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Rock 3 Sw, KS (3 mi, snow) and Winfield 3ne, KS (11 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.