Diamond Springs, CA climate
Diamond Springs has mild winters and hot summers. A typical July afternoon reaches 94°, a January night drops to 37°.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Diamond Springs feels like
Winter
Spring
Summer
Fall
Diamond Springs weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 56° | 37° | 6.6" | 43° – 53° |
| February | 59° | 39° | 6.4" | 43° – 55° |
| March | 62° | 41° | 5.8" | 44° – 58° |
| April | 68° | 44° | 3.3" | 50° – 60° |
| May | 76° | 50° | 1.9" | 54° – 71° |
| June | 86° | 56° | 0.4" | 65° – 76° |
| July | 94° | 62° | 0.0" | 73° – 82° |
| August | 93° | 61° | 0.1" | 72° – 81° |
| September | 87° | 57° | 0.3" | 67° – 76° |
| October | 76° | 50° | 1.7" | 59° – 69° |
| November | 63° | 42° | 3.5" | 44° – 57° |
| December | 55° | 37° | 6.4" | 42° – 49° |
| Year | 73° | 48° | 36.4" |
“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 Diamond Springs
Diamond Springs gets 36 inches of rain and melted snow a year. January is the wettest month and July the driest.
About 237 frost-free days a year
In half of years the last 32° night comes by March 31 and the first one by November 21. That leaves about 237 frost-free days for gardens, longer than 88% of U.S. towns.
Heating and cooling a home in Diamond Springs
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Diamond Springs, 71% of that work is heating and 29% 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.
Diamond Springs and its neighbors
Diamond Springs borders 2 towns with climate data. January nights across them vary by 1.7°. Placerville has the coldest January nights (37°) and Shingle Springs the hottest July afternoons (94°). Diamond Springs’s January low is 37° and its July high 94°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Diamond Springs 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 Diamond Springs averaged 0.8° warmer than the 1900s. The biggest change is in January (+1.8°). The shift is smaller than in 82% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Diamond Springs’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 54° to 71°. December is the most reliable, staying within 7°.
Common questions about Diamond Springs’s climate
What is the coldest month in Diamond Springs?
December, with a typical high of 55° and a low of 37°.
What is the hottest month in Diamond Springs?
July, with a typical high of 94° and a low of 62°. About 74 days a year reach 90°.
When is the first frost in Diamond Springs?
In half of years the first 32° night comes by November 21, and the last spring frost by March 31.
What is the rainiest month in Diamond Springs?
January, with 6.6 inches of rain and melted snow. The year totals 36 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Diamond Springs itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Placerville, 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.