Lake Wylie, SC climate
Lake Wylie has mild winters and warm summers. A typical July afternoon reaches 90°, a January night drops to 31°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Lake Wylie feels like
Winter
Spring
Summer
Fall
Lake Wylie 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° | 3.6" | 0.1" | 9 | 0 | 36° – 47° |
| February | 57° | 34° | 3.2" | 0 | 9 | 0 | 37° – 54° |
| March | 64° | 40° | 4.0" | 0 | 9 | 0 | 46° – 61° |
| April | 73° | 48° | 3.7" | 0 | 8 | 0 | 57° – 65° |
| May | 80° | 57° | 3.5" | 0 | 8 | 0 | 64° – 74° |
| June | 87° | 65° | 4.2" | 0 | 9 | 0 | 72° – 80° |
| July | 90° | 69° | 3.8" | 0 | 9 | 0 | 77° – 84° |
| August | 89° | 68° | 4.2" | 0 | 9 | 0 | 75° – 84° |
| September | 83° | 62° | 3.7" | 0 | 7 | 0 | 69° – 78° |
| October | 74° | 49° | 3.2" | 0 | 6 | 0 | 58° – 67° |
| November | 63° | 39° | 3.3" | 0 | 7 | 0 | 46° – 56° |
| December | 55° | 33° | 3.7" | 0.1" | 9 | 0 | 35° – 55° |
| Year | 72° | 50° | 44.1" | 0.2" | 98 | 0 |
“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 Wylie
Lake Wylie gets 44 inches of rain and melted snow a year. June is the wettest month and October the driest. Rain or snow falls on about 98 days a year.
About 218 frost-free days a year
In half of years the last 32° night comes by March 31 and the first one by November 4. That leaves about 218 frost-free days for gardens, longer than 81% of U.S. towns.
Heating and cooling a home in Lake Wylie
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Lake Wylie, 65% of that work is heating and 35% 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 Lake Wylie 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 Wylie averaged 1.1° warmer than the 1900s. The biggest change is in December (+2.1°). The shift is smaller than in 64% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Lake Wylie’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 35° to 55°. July is the most reliable, staying within 7°.
Common questions about Lake Wylie’s climate
What is the coldest month in Lake Wylie?
January, with a typical high of 52° and a low of 31°.
What is the hottest month in Lake Wylie?
July, with a typical high of 90° and a low of 69°. About 55 days a year reach 90°.
How much snow does Lake Wylie get?
Almost none. A normal year brings 0.2 inches.
When is the first frost in Lake Wylie?
In half of years the first 32° night comes by November 4, and the last spring frost by March 31.
What is the rainiest month in Lake Wylie?
June, with 4.2 inches of rain and melted snow. The year totals 44 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Lake Wylie itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Ft Mill 4 Nw, SC (6 mi, snow) and Rock Hill York Co Airport, SC (8 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.