Lake Hamilton, AR climate
Lake Hamilton has mild winters and hot summers, with plenty of rain. A typical July afternoon reaches 93°, a January night drops to 31°, and about 1 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Lake Hamilton feels like
Winter
Spring
Summer
Fall
Lake 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 | 52° | 31° | 3.7" | 0.6" | 10 | 0 | 37° – 48° |
| February | 57° | 34° | 4.2" | 0.4" | 10 | 0 | 38° – 53° |
| March | 66° | 41° | 5.0" | 0.1" | 11 | 0 | 48° – 62° |
| April | 74° | 49° | 5.6" | 0 | 10 | 0 | 57° – 67° |
| May | 81° | 58° | 5.9" | 0 | 11 | 0 | 67° – 76° |
| June | 89° | 67° | 4.2" | 0 | 8 | 0 | 73° – 83° |
| July | 93° | 70° | 4.1" | 0 | 9 | 0 | 75° – 85° |
| August | 92° | 69° | 3.4" | 0 | 8 | 0 | 75° – 85° |
| September | 86° | 62° | 3.8" | 0 | 8 | 0 | 70° – 81° |
| October | 75° | 50° | 4.6" | 0 | 8 | 0 | 57° – 68° |
| November | 63° | 40° | 4.7" | 0 | 9 | 0 | 46° – 56° |
| December | 54° | 33° | 5.0" | 0 | 10 | 0 | 33° – 50° |
| Year | 74° | 50° | 54.2" | 1.1" | 110 | 1 |
“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 Lake Hamilton
Lake Hamilton gets 54 inches of rain and melted snow a year. May is the wettest month and August the driest. Rain or snow falls on about 110 days a year.
About 239 frost-free days a year
In half of years the last 32° night comes by March 19 and the first one by November 13. That leaves about 239 frost-free days for gardens, longer than 88% of U.S. towns.
Heating and cooling a home in Lake Hamilton
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Lake Hamilton, 58% of that work is heating and 42% 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.
Lake Hamilton and its neighbors
Lake Hamilton borders 1 town with climate data. January nights across them vary by 0.1°. Hot Springs has both the coldest January nights (31°) and the hottest July afternoons (92°). Lake Hamilton’s January low is 31° and its July high 93°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Lake 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 Lake Hamilton averaged 0.4° warmer than the 1900s. The biggest change is in December (+0.9°). The shift is smaller than in 98% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Lake Hamilton’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. December swings the most: between 1991 and 2020 its average temperature ranged from 33° to 50°. May is the most reliable, staying within 9°.
Common questions about Lake Hamilton’s climate
What is the coldest month in Lake Hamilton?
January, with a typical high of 52° and a low of 31°.
What is the hottest month in Lake Hamilton?
July, with a typical high of 93° and a low of 70°. About 77 days a year reach 90°.
How much snow does Lake Hamilton get?
About 1 inches in a normal winter, most of it in January.
When is the first frost in Lake Hamilton?
In half of years the first 32° night comes by November 13, and the last spring frost by March 19.
What is the rainiest month in Lake Hamilton?
May, with 5.9 inches of rain and melted snow. The year totals 54 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Lake Hamilton itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Hot Springs 1 Nne, AR (6 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.