Hamilton, KS climate
Hamilton has chilly winters and warm summers. A typical July afternoon reaches 90°, a January night drops to 21°, and about 4 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Hamilton feels like
Winter
Spring
Summer
Fall
Hamilton 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 | 42° | 21° | 0.9" | 1.2" | 4 | 2 | 26° – 42° |
| February | 47° | 25° | 1.5" | 0.7" | 5 | 1 | 28° – 45° |
| March | 58° | 35° | 2.5" | 0.3" | 7 | 0 | 39° – 57° |
| April | 68° | 44° | 3.7" | 0 | 8 | 0 | 49° – 61° |
| May | 76° | 54° | 5.7" | 0 | 10 | 0 | 60° – 73° |
| June | 85° | 64° | 5.1" | 0 | 8 | 0 | 70° – 79° |
| July | 90° | 68° | 4.5" | 0 | 8 | 0 | 75° – 86° |
| August | 89° | 66° | 3.7" | 0 | 7 | 0 | 71° – 85° |
| September | 82° | 58° | 3.9" | 0 | 7 | 0 | 65° – 76° |
| October | 70° | 46° | 3.3" | 0 | 7 | 0 | 50° – 63° |
| November | 57° | 34° | 2.1" | 0.1" | 5 | 0 | 39° – 53° |
| December | 45° | 25° | 1.5" | 1.4" | 5 | 1 | 23° – 41° |
| Year | 67° | 45° | 38.5" | 3.7" | 80 | 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 Hamilton
Hamilton gets 38 inches of rain and melted snow a year. May is the wettest month and January the driest. Rain or snow falls on about 80 days a year.
About 186 frost-free days a year
In half of years the last 32° night comes by April 16 and the first one by October 20. That leaves about 186 frost-free days for gardens, longer than 59% of U.S. towns.
Heating and cooling a home in Hamilton
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Hamilton, 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.
How Hamilton 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 Hamilton averaged 0.7° warmer than the 1900s. The biggest change is in January (+2.0°). The shift is smaller than in 90% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Hamilton’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 39° to 57°. June is the most reliable, staying within 9°.
Common questions about Hamilton’s climate
What is the coldest month in Hamilton?
January, with a typical high of 42° and a low of 21°.
What is the hottest month in Hamilton?
July, with a typical high of 90° and a low of 68°. About 50 days a year reach 90°.
How much snow does Hamilton get?
About 4 inches in a normal winter, most of it in December.
When is the first frost in Hamilton?
In half of years the first 32° night comes by October 20, and the last spring frost by April 16.
What is the rainiest month in Hamilton?
May, with 5.7 inches of rain and melted snow. The year totals 38 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Hamilton itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Thrall 3sse, KS (8 mi, snow) and Eureka 1e, KS (12 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.