Rivergrove, CA climate
Rivergrove has mild winters and hot summers, with very little rain. A typical July afternoon reaches 100°, a January night drops to 40°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Rivergrove feels like
Winter
Spring
Summer
Fall
Rivergrove 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 | 60° | 40° | 2.0" | 0.1" | 6 | 0 | 44° – 54° |
| February | 66° | 43° | 1.8" | 0 | 7 | 0 | 50° – 60° |
| March | 72° | 46° | 1.7" | 0 | 6 | 0 | 53° – 65° |
| April | 78° | 50° | 0.8" | 0 | 4 | 0 | 59° – 68° |
| May | 86° | 57° | 0.4" | 0 | 2 | 0 | 63° – 78° |
| June | 94° | 64° | 0.1" | 0 | 0 | 0 | 72° – 84° |
| July | 100° | 70° | 0.0" | 0 | 0 | 0 | 81° – 89° |
| August | 99° | 68° | 0.0" | 0 | 0 | 0 | 79° – 87° |
| September | 93° | 63° | 0.1" | 0 | 1 | 0 | 74° – 81° |
| October | 82° | 54° | 0.4" | 0 | 2 | 0 | 64° – 73° |
| November | 68° | 44° | 0.8" | 0 | 4 | 0 | 49° – 60° |
| December | 60° | 39° | 1.6" | 0 | 6 | 0 | 46° – 53° |
| Year | 80° | 53° | 9.7" | 0.1" | 38 | 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 Rivergrove
Rivergrove gets 10 inches of rain and melted snow a year. January is the wettest month and July the driest. Rain or snow falls on about 38 days a year.
A year-round growing season
Heating and cooling a home in Rivergrove
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Rivergrove, 45% of that work is heating and 55% 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 Rivergrove 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 Rivergrove averaged 2.0° warmer than the 1900s. The biggest change is in March (+2.5°). The shift is larger than in 94% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Rivergrove’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 63° to 78°. December is the most reliable, staying within 7°.
Common questions about Rivergrove’s climate
What is the coldest month in Rivergrove?
December, with a typical high of 60° and a low of 39°.
What is the hottest month in Rivergrove?
July, with a typical high of 100° and a low of 70°. About 112 days a year reach 90°.
How much snow does Rivergrove get?
Almost none. A normal year brings 0.1 inches.
When is the first frost in Rivergrove?
Frost is uncommon. Only 90% of years see a night at 32° or below.
What is the rainiest month in Rivergrove?
January, with 2.0 inches of rain and melted snow. The year totals 10 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Rivergrove itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Bakersfield Airport, CA (6 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.