Lago Vista, TX climate
Lago Vista has warm winters and hot summers, with very little rain. A typical July afternoon reaches 99°, a January night drops to 48°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Lago Vista feels like
Winter
Spring
Summer
Fall
Lago Vista 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 | 70° | 48° | 0.8" | 0 | 5 | 0 | 53° – 65° |
| February | 76° | 52° | 0.7" | 0 | 4 | 0 | 57° – 72° |
| March | 83° | 59° | 1.1" | 0 | 4 | 0 | 65° – 77° |
| April | 89° | 64° | 1.3" | 0 | 3 | 0 | 70° – 82° |
| May | 94° | 71° | 2.3" | 0 | 4 | 0 | 77° – 86° |
| June | 99° | 75° | 2.2" | 0 | 4 | 0 | 84° – 91° |
| July | 99° | 76° | 2.1" | 0 | 4 | 0 | 83° – 91° |
| August | 100° | 76° | 1.6" | 0 | 4 | 0 | 85° – 92° |
| September | 94° | 72° | 4.6" | 0 | 7 | 0 | 79° – 87° |
| October | 88° | 65° | 1.5" | 0 | 4 | 0 | 73° – 81° |
| November | 79° | 56° | 1.1" | 0 | 4 | 0 | 62° – 74° |
| December | 71° | 49° | 0.9" | 0 | 6 | 0 | 54° – 65° |
| Year | 87° | 64° | 20.2" | 0.0" | 54 | 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 Lago Vista
Lago Vista gets 20 inches of rain and melted snow a year. September is the wettest month and February the driest. Rain or snow falls on about 54 days a year.
A year-round growing season
Heating and cooling a home in Lago Vista
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Lago Vista, 11% of that work is heating and 89% is cooling, so air conditioning is the bigger bill.
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 Lago Vista 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 Lago Vista averaged 1.4° warmer than the 1900s. The biggest change is in February (+2.4°). The shift is larger than in 66% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Lago Vista’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 57° to 72°. August is the most reliable, staying within 7°.
Common questions about Lago Vista’s climate
What is the coldest month in Lago Vista?
January, with a typical high of 70° and a low of 48°.
What is the hottest month in Lago Vista?
August, with a typical high of 100° and a low of 76°. About 195 days a year reach 90°.
How much snow does Lago Vista get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Lago Vista?
Frost is uncommon. Only 55% of years see a night at 32° or below.
What is the rainiest month in Lago Vista?
September, with 4.6 inches of rain and melted snow. The year totals 20 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Lago Vista itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Falcon Dam, TX (2 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.