Mount Laguna, CA climate
Mount Laguna has mild winters and warm summers. A typical July afternoon reaches 85°, a January night drops to 31°, and about 20 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Mount Laguna feels like
Winter
Spring
Summer
Fall
Mount Laguna 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° | 4.5" | 3.8" | 7 | 1 | 36° – 47° |
| February | 52° | 30° | 5.3" | 5.4" | 8 | 1 | 34° – 48° |
| March | 56° | 32° | 3.5" | 5.5" | 7 | 1 | 37° – 51° |
| April | 60° | 34° | 1.6" | 3.1" | 5 | 0 | 42° – 52° |
| May | 68° | 40° | 0.6" | 0.1" | 3 | 0 | 47° – 61° |
| June | 78° | 46° | 0.1" | 0 | 1 | 0 | 56° – 67° |
| July | 85° | 53° | 0.6" | 0 | 2 | 0 | 63° – 72° |
| August | 85° | 53° | 0.7" | 0 | 2 | 0 | 66° – 72° |
| September | 79° | 48° | 0.5" | 0 | 2 | 0 | 60° – 67° |
| October | 69° | 40° | 0.7" | 0 | 4 | 0 | 50° – 60° |
| November | 59° | 34° | 1.8" | 0.7" | 4 | 0 | 39° – 52° |
| December | 52° | 30° | 3.5" | 1.3" | 7 | 0 | 37° – 46° |
| Year | 66° | 39° | 23.4" | 19.9" | 52 | 3 |
“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 Mount Laguna
Mount Laguna gets 23 inches of rain and melted snow a year. February is the wettest month and June the driest. Rain or snow falls on about 52 days a year.
About 197 frost-free days a year
In half of years the last 32° night comes by April 22 and the first one by November 8. That leaves about 197 frost-free days for gardens, longer than 70% of U.S. towns.
Heating and cooling a home in Mount Laguna
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Mount Laguna, 89% of that work is heating and 11% 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.
How Mount Laguna 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 Mount Laguna averaged 1.8° warmer than the 1900s. The biggest change is in January (+3.3°). The shift is larger than in 89% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Mount Laguna’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 34° to 48°. August is the most reliable, staying within 7°.
Common questions about Mount Laguna’s climate
What is the coldest month in Mount Laguna?
February, with a typical high of 52° and a low of 30°.
What is the hottest month in Mount Laguna?
July, with a typical high of 85° and a low of 53°. About 4 days a year reach 90°.
How much snow does Mount Laguna get?
About 20 inches in a normal winter, most of it in March.
When is the first frost in Mount Laguna?
In half of years the first 32° night comes by November 8, and the last spring frost by April 22.
What is the rainiest month in Mount Laguna?
February, with 5.3 inches of rain and melted snow. The year totals 23 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Mount Laguna itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Cuyamaca, CA (12 mi, snow) and Mt Laguna #3, CA (1 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.