Lemon Grove, CA climate
Lemon Grove has warm winters and pleasant summers, with very little rain. A typical July afternoon reaches 82°, a January night drops to 45°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Lemon Grove feels like
Winter
Spring
Summer
Fall
Lemon Grove 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 | 69° | 45° | 2.2" | 0 | 7 | 0 | 53° – 61° |
| February | 68° | 46° | 2.5" | 0 | 8 | 0 | 53° – 63° |
| March | 70° | 48° | 1.9" | 0 | 7 | 0 | 54° – 65° |
| April | 72° | 51° | 0.9" | 0 | 4 | 0 | 57° – 65° |
| May | 73° | 55° | 0.3" | 0 | 3 | 0 | 60° – 69° |
| June | 77° | 58° | 0.1" | 0 | 1 | 0 | 64° – 72° |
| July | 82° | 62° | 0.0" | 0 | 1 | 0 | 68° – 78° |
| August | 85° | 64° | 0.0" | 0 | 0 | 0 | 71° – 78° |
| September | 84° | 61° | 0.1" | 0 | 1 | 0 | 69° – 77° |
| October | 79° | 56° | 0.5" | 0 | 3 | 0 | 64° – 72° |
| November | 74° | 49° | 1.0" | 0 | 4 | 0 | 55° – 65° |
| December | 68° | 44° | 1.9" | 0 | 7 | 0 | 53° – 59° |
| Year | 75° | 53° | 11.3" | 0.0" | 45 | 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 Lemon Grove
Lemon Grove gets 11 inches of rain and melted snow a year. February is the wettest month and July the driest. Rain or snow falls on about 45 days a year.
A year-round growing season
Heating and cooling a home in Lemon Grove
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Lemon Grove, 56% of that work is heating and 44% 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.
Lemon Grove and its neighbors
Lemon Grove borders 4 towns with climate data. January nights across them vary by 0.9°. Spring Valley has both the coldest January nights (44°) and the hottest July afternoons (84°). Lemon Grove’s January low is 45° and its July high 82°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Lemon Grove 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 Lemon Grove averaged 2.2° warmer than the 1900s. The biggest change is in January (+3.1°). The shift is larger than in 97% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Lemon Grove’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. March swings the most: between 1991 and 2020 its average temperature ranged from 54° to 65°. December is the most reliable, staying within 6°.
Common questions about Lemon Grove’s climate
What is the coldest month in Lemon Grove?
December, with a typical high of 68° and a low of 44°.
What is the hottest month in Lemon Grove?
August, with a typical high of 85° and a low of 64°. About 16 days a year reach 90°.
How much snow does Lemon Grove get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Lemon Grove?
Frost is uncommon. Only 6% of years see a night at 32° or below.
What is the rainiest month in Lemon Grove?
February, with 2.5 inches of rain and melted snow. The year totals 11 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Lemon Grove itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Lakeside 2 E, CA (12 mi, snow) and San Diego Montgomery Fld, CA (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.