Grenola, KS climate
Grenola has chilly winters and warm summers. A typical July afternoon reaches 91°, a January night drops to 22°, and about 9 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Grenola feels like
Winter
Spring
Summer
Fall
Grenola 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 | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 44° | 22° | 1.1" | 2.6" | 4 | 2 | 27° – 43° |
| February | 49° | 26° | 1.6" | 1.9" | 5 | 1 | 30° – 46° |
| March | 59° | 35° | 2.8" | 1.2" | 7 | 0 | 41° – 57° |
| April | 69° | 45° | 3.9" | 0 | 7 | 0 | 49° – 63° |
| May | 77° | 55° | 5.9" | 0 | 10 | 0 | 61° – 73° |
| June | 85° | 64° | 5.7" | 0 | 8 | 0 | 70° – 79° |
| July | 91° | 69° | 4.1" | 0 | 7 | 0 | 74° – 87° |
| August | 90° | 67° | 3.9" | 0 | 6 | 0 | 72° – 86° |
| September | 82° | 59° | 3.5" | 0 | 6 | 0 | 66° – 78° |
| October | 71° | 46° | 3.5" | 0 | 6 | 0 | 51° – 63° |
| November | 58° | 34° | 2.2" | 0.3" | 5 | 0 | 39° – 54° |
| December | 46° | 26° | 1.6" | 2.9" | 4 | 1 | 25° – 41° |
| Year | 68° | 46° | 39.6" | 8.9" | 74 | 5 |
“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 Grenola
Grenola gets 40 inches of rain and melted snow a year. May is the wettest month and January the driest. Rain or snow falls on about 74 days a year.
About 186 frost-free days a year
In half of years the last 32° night comes by April 17 and the first one by October 22. That leaves about 186 frost-free days for gardens, longer than 59% of U.S. towns.
Heating and cooling a home in Grenola
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Grenola, 77% of that work is heating and 23% 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 Grenola 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 Grenola averaged 0.5° warmer than the 1900s. The biggest change is in January (+1.8°). The shift is smaller than in 96% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Grenola’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 41° to 57°. June is the most reliable, staying within 9°.
Common questions about Grenola’s climate
What is the coldest month in Grenola?
January, with a typical high of 44° and a low of 22°.
What is the hottest month in Grenola?
July, with a typical high of 91° and a low of 69°. About 50 days a year reach 90°.
How much snow does Grenola get?
About 9 inches in a normal winter, most of it in December.
When is the first frost in Grenola?
In half of years the first 32° night comes by October 22, and the last spring frost by April 17.
What is the rainiest month in Grenola?
May, with 5.9 inches of rain and melted snow. The year totals 40 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Grenola itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Grenola 1 N, KS (1 mi, snow) and Howard, KS (13 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.