Swan, KS climate
Swan has chilly winters and warm summers. A typical July afternoon reaches 91°, a January night drops to 16°, and about 18 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Swan feels like
Winter
Spring
Summer
Fall
Swan 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 | 39° | 16° | 0.5" | 4.4" | 4 | 8 | 20° – 40° |
| February | 44° | 20° | 0.7" | 5.9" | 4 | 8 | 22° – 41° |
| March | 56° | 29° | 1.4" | 2.3" | 7 | 2 | 34° – 54° |
| April | 66° | 38° | 2.2" | 0.7" | 8 | 0 | 45° – 57° |
| May | 75° | 49° | 4.0" | 0 | 11 | 0 | 55° – 68° |
| June | 86° | 60° | 3.4" | 0 | 10 | 0 | 68° – 78° |
| July | 91° | 65° | 4.1" | 0 | 10 | 0 | 72° – 83° |
| August | 88° | 63° | 3.3" | 0 | 9 | 0 | 69° – 82° |
| September | 81° | 53° | 1.9" | 0 | 6 | 0 | 61° – 74° |
| October | 68° | 40° | 1.9" | 0.5" | 6 | 0 | 47° – 58° |
| November | 54° | 28° | 1.0" | 1.5" | 5 | 1 | 33° – 48° |
| December | 42° | 19° | 0.8" | 3.0" | 4 | 6 | 21° – 34° |
| Year | 66° | 40° | 25.1" | 18.3" | 84 | 27 |
“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 Swan
Swan gets 25 inches of rain and melted snow a year. July is the wettest month and January the driest. Rain or snow falls on about 84 days a year. Snow covers the ground about 27 days of the year.
About 173 frost-free days a year
In half of years the last 32° night comes by April 24 and the first one by October 15. That leaves about 173 frost-free days for gardens, shorter than 57% of U.S. towns.
Heating and cooling a home in Swan
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Swan, 81% of that work is heating and 19% 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.
Swan and its neighbors
Swan borders 4 towns with climate data. January nights across them vary by 0.6°. Pleasant has the coldest January nights (16°) and Cedar the hottest July afternoons (91°). Swan’s January low is 16° and its July high 91°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Swan 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 Swan averaged 0.7° warmer than the 1900s. The biggest change is in January (+2.4°). The shift is smaller than in 88% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Swan’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. January swings the most: between 1991 and 2020 its average temperature ranged from 20° to 40°. June is the most reliable, staying within 10°.
Common questions about Swan’s climate
What is the coldest month in Swan?
January, with a typical high of 39° and a low of 16°.
What is the hottest month in Swan?
July, with a typical high of 91° and a low of 65°. About 61 days a year reach 90°.
How much snow does Swan get?
About 18 inches in a normal winter, most of it in February.
When is the first frost in Swan?
In half of years the first 32° night comes by October 15, and the last spring frost by April 24.
What is the rainiest month in Swan?
July, with 4.1 inches of rain and melted snow. The year totals 25 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Swan itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Smith Ctr, KS (14 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.