Santa Rosa, NM climate
Santa Rosa has chilly winters and hot summers, with very little rain. A typical July afternoon reaches 93°, a January night drops to 23°, and about 11 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Santa Rosa feels like
Winter
Spring
Summer
Fall
Santa Rosa 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 | 54° | 23° | 0.4" | 3.1" | 2 | 1 | 31° – 43° |
| February | 58° | 26° | 0.4" | 1.6" | 3 | 1 | 36° – 49° |
| March | 66° | 31° | 0.8" | 1.5" | 3 | 0 | 44° – 54° |
| April | 73° | 38° | 0.8" | 0.3" | 3 | 0 | 50° – 61° |
| May | 82° | 48° | 1.3" | 0 | 4 | 0 | 61° – 70° |
| June | 91° | 57° | 1.6" | 0 | 6 | 0 | 70° – 78° |
| July | 93° | 62° | 2.4" | 0 | 7 | 0 | 73° – 81° |
| August | 90° | 60° | 2.3" | 0 | 8 | 0 | 72° – 80° |
| September | 84° | 53° | 1.9" | 0 | 6 | 0 | 63° – 73° |
| October | 74° | 41° | 1.3" | 0.2" | 4 | 0 | 54° – 62° |
| November | 62° | 30° | 0.5" | 1.4" | 3 | 1 | 39° – 52° |
| December | 53° | 23° | 0.7" | 3.2" | 3 | 2 | 33° – 43° |
| Year | 73° | 41° | 14.4" | 11.3" | 51 | 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 Santa Rosa
Santa Rosa gets 14 inches of rain and melted snow a year. July is the wettest month and February the driest. Rain or snow falls on about 51 days a year.
About 183 frost-free days a year
In half of years the last 32° night comes by April 20 and the first one by October 23. That leaves about 183 frost-free days for gardens, longer than 56% of U.S. towns.
Heating and cooling a home in Santa Rosa
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Santa Rosa, 74% of that work is heating and 26% 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 Rosa 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 Rosa averaged 1.6° warmer than the 1900s. The biggest change is in March (+2.9°). The shift is larger than in 78% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Santa Rosa’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. November swings the most: between 1991 and 2020 its average temperature ranged from 39° to 52°. August is the most reliable, staying within 8°.
Common questions about Santa Rosa’s climate
What is the coldest month in Santa Rosa?
January, with a typical high of 54° and a low of 23°.
What is the hottest month in Santa Rosa?
July, with a typical high of 93° and a low of 62°. About 77 days a year reach 90°.
How much snow does Santa Rosa get?
About 11 inches in a normal winter, most of it in December.
When is the first frost in Santa Rosa?
In half of years the first 32° night comes by October 23, and the last spring frost by April 20.
What is the rainiest month in Santa Rosa?
July, with 2.4 inches of rain and melted snow. The year totals 14 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Santa Rosa itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Santa Rosa, NM (3 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.