Lyon, KS climate
Lyon has chilly winters and warm summers. A typical July afternoon reaches 91°, a January night drops to 19°, and about 16 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Lyon feels like
Winter
Spring
Summer
Fall
Lyon 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 | 40° | 19° | 0.8" | 4.1" | 6 | 7 | 23° – 42° |
| February | 46° | 23° | 1.1" | 3.4" | 6 | 5 | 26° – 43° |
| March | 57° | 33° | 2.0" | 1.9" | 8 | 1 | 37° – 57° |
| April | 67° | 42° | 3.2" | 0.2" | 9 | 0 | 47° – 60° |
| May | 76° | 53° | 5.0" | 0 | 11 | 0 | 58° – 73° |
| June | 86° | 63° | 4.8" | 0 | 9 | 0 | 69° – 80° |
| July | 91° | 68° | 4.5" | 0 | 9 | 0 | 74° – 86° |
| August | 89° | 66° | 4.2" | 0 | 8 | 0 | 72° – 85° |
| September | 81° | 57° | 2.8" | 0 | 7 | 0 | 63° – 76° |
| October | 69° | 44° | 2.5" | 0.5" | 7 | 0 | 49° – 62° |
| November | 55° | 32° | 1.5" | 1.5" | 6 | 1 | 36° – 51° |
| December | 43° | 22° | 1.2" | 4.7" | 5 | 6 | 21° – 38° |
| Year | 67° | 44° | 33.5" | 16.3" | 91 | 21 |
“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 Lyon
Lyon gets 33 inches of rain and melted snow a year. May is the wettest month and January the driest. Rain or snow falls on about 91 days a year. Snow covers the ground about 21 days of the year.
About 193 frost-free days a year
In half of years the last 32° night comes by April 12 and the first one by October 26. That leaves about 193 frost-free days for gardens, longer than 67% of U.S. towns.
Heating and cooling a home in Lyon
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Lyon, 78% of that work is heating and 22% 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.
Lyon and its neighbors
Lyon borders 5 towns with climate data. January nights across them vary by 0.9°. Jefferson has the coldest January nights (19°) and Rinehart the hottest July afternoons (91°). Lyon’s January low is 19° and its July high 91°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Lyon 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 Lyon averaged 1.0° warmer than the 1900s. The biggest change is in January (+2.5°). The shift is smaller than in 73% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Lyon’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 37° to 57°. June is the most reliable, staying within 11°.
Common questions about Lyon’s climate
What is the coldest month in Lyon?
January, with a typical high of 40° and a low of 19°.
What is the hottest month in Lyon?
July, with a typical high of 91° and a low of 68°. About 46 days a year reach 90°.
How much snow does Lyon get?
About 16 inches in a normal winter, most of it in December.
When is the first frost in Lyon?
In half of years the first 32° night comes by October 26, and the last spring frost by April 12.
What is the rainiest month in Lyon?
May, with 5.0 inches of rain and melted snow. The year totals 33 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Lyon itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at White City, KS (11 mi, snow) and Milford Lake, 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.