Spring Valley Lake, CA climate
Spring Valley Lake has mild winters and hot summers, with very little rain. A typical July afternoon reaches 97°, a January night drops to 35°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Spring Valley Lake feels like
Winter
Spring
Summer
Fall
Spring Valley Lake 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 | 61° | 35° | 1.2" | 0 | 5 | 0 | 44° – 53° |
| February | 62° | 37° | 1.5" | 0 | 5 | 0 | 43° – 56° |
| March | 68° | 41° | 0.9" | 0 | 4 | 0 | 48° – 60° |
| April | 73° | 44° | 0.4" | 0 | 2 | 0 | 53° – 63° |
| May | 81° | 50° | 0.1" | 0 | 1 | 0 | 58° – 72° |
| June | 90° | 57° | 0.0" | 0 | 0 | 0 | 68° – 78° |
| July | 97° | 64° | 0.2" | 0 | 1 | 0 | 75° – 84° |
| August | 97° | 63° | 0.1" | 0 | 1 | 0 | 77° – 84° |
| September | 90° | 58° | 0.2" | 0 | 1 | 0 | 70° – 78° |
| October | 79° | 48° | 0.3" | 0 | 1 | 0 | 60° – 70° |
| November | 68° | 39° | 0.4" | 0 | 2 | 0 | 46° – 59° |
| December | 59° | 34° | 1.1" | 0 | 4 | 0 | 42° – 50° |
| Year | 77° | 48° | 6.3" | 0.0" | 25 | 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 Spring Valley Lake
Spring Valley Lake gets 6 inches of rain and melted snow a year. February is the wettest month and June the driest. Rain or snow falls on about 25 days a year.
About 233 frost-free days a year
In half of years the last 32° night comes by March 18 and the first one by November 11. That leaves about 233 frost-free days for gardens, longer than 87% of U.S. towns.
Heating and cooling a home in Spring Valley Lake
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Spring Valley Lake, 62% of that work is heating and 38% 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.
Spring Valley Lake and its neighbors
Spring Valley Lake borders 2 towns with climate data. January nights across them vary by 0.2°. Apple Valley has both the coldest January nights (35°) and the hottest July afternoons (97°). Spring Valley Lake’s January low is 35° and its July high 97°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Spring Valley Lake 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 Spring Valley Lake averaged 1.8° warmer than the 1900s. The biggest change is in January (+2.6°). The shift is larger than in 89% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Spring Valley Lake’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. May swings the most: between 1991 and 2020 its average temperature ranged from 58° to 72°. August is the most reliable, staying within 7°.
Common questions about Spring Valley Lake’s climate
What is the coldest month in Spring Valley Lake?
December, with a typical high of 59° and a low of 34°.
What is the hottest month in Spring Valley Lake?
August, with a typical high of 97° and a low of 63°. About 119 days a year reach 90°.
How much snow does Spring Valley Lake get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Spring Valley Lake?
In half of years the first 32° night comes by November 11, and the last spring frost by March 18.
What is the rainiest month in Spring Valley Lake?
February, with 1.5 inches of rain and melted snow. The year totals 6 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Spring Valley Lake itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Victorville, CA (3 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.