Santa Nella, CA climate
Santa Nella has mild winters and hot summers, with very little rain. A typical July afternoon reaches 93°, a January night drops to 40°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Santa Nella feels like
Winter
Spring
Summer
Fall
Santa Nella 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 | 57° | 40° | 2.0" | 0.1" | 12 | 0 | 45° – 54° |
| February | 63° | 43° | 1.8" | 0 | 11 | 0 | 49° – 57° |
| March | 68° | 46° | 1.4" | 0 | 8 | 0 | 51° – 63° |
| April | 74° | 49° | 0.5" | 0 | 5 | 0 | 56° – 65° |
| May | 81° | 54° | 0.4" | 0 | 3 | 0 | 60° – 74° |
| June | 88° | 59° | 0.1" | 0 | 1 | 0 | 68° – 77° |
| July | 93° | 63° | 0.0" | 0 | 0 | 0 | 74° – 83° |
| August | 92° | 62° | 0.0" | 0 | 0 | 0 | 73° – 81° |
| September | 89° | 59° | 0.0" | 0 | 0 | 0 | 70° – 77° |
| October | 79° | 52° | 0.5" | 0 | 3 | 0 | 63° – 71° |
| November | 67° | 45° | 0.9" | 0 | 7 | 0 | 49° – 60° |
| December | 57° | 39° | 1.5" | 0 | 10 | 0 | 45° – 53° |
| Year | 76° | 51° | 9.0" | 0.1" | 60 | 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 Santa Nella
Santa Nella gets 9 inches of rain and melted snow a year. January is the wettest month and July the driest. Rain or snow falls on about 60 days a year.
About 323 frost-free days a year
In half of years the last 32° night comes by January 27 and the first one by December 11. That leaves about 323 frost-free days for gardens, longer than 96% of U.S. towns.
Heating and cooling a home in Santa Nella
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Santa Nella, 57% of that work is heating and 43% 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 Santa Nella 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 Santa Nella averaged 1.9° warmer than the 1900s. The biggest change is in January (+2.6°). The shift is larger than in 91% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Santa Nella’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 60° to 74°. September is the most reliable, staying within 7°.
Common questions about Santa Nella’s climate
What is the coldest month in Santa Nella?
December, with a typical high of 57° and a low of 39°.
What is the hottest month in Santa Nella?
July, with a typical high of 93° and a low of 63°. About 76 days a year reach 90°.
How much snow does Santa Nella get?
Almost none. A normal year brings 0.1 inches.
When is the first frost in Santa Nella?
In half of years the first 32° night comes by December 11, and the last spring frost by January 27.
What is the rainiest month in Santa Nella?
January, with 2.0 inches of rain and melted snow. The year totals 9 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Santa Nella itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at San Luis Dam, CA (4 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.