Mariposa, CA climate
Mariposa has mild winters and hot summers. A typical July afternoon reaches 94°, a January night drops to 36°.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Mariposa feels like
Winter
Spring
Summer
Fall
Mariposa 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° | 36° | 5.7" | 42° – 53° |
| February | 58° | 38° | 4.9" | 41° – 55° |
| March | 62° | 40° | 4.4" | 43° – 58° |
| April | 67° | 43° | 2.4" | 49° – 60° |
| May | 77° | 49° | 1.1" | 53° – 71° |
| June | 87° | 56° | 0.3" | 65° – 77° |
| July | 94° | 63° | 0.0" | 74° – 83° |
| August | 93° | 62° | 0.0" | 74° – 82° |
| September | 88° | 57° | 0.2" | 68° – 77° |
| October | 76° | 49° | 1.4" | 58° – 68° |
| November | 63° | 41° | 2.6" | 42° – 58° |
| December | 55° | 36° | 4.9" | 41° – 50° |
| Year | 73° | 47° | 27.9" |
“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 Mariposa
Mariposa gets 28 inches of rain and melted snow a year. January is the wettest month and July the driest.
How Mariposa 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 Mariposa averaged 1.3° warmer than the 1900s. The biggest change is in January (+2.4°). The shift is larger than in 59% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Mariposa’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 53° to 71°. August is the most reliable, staying within 8°.
Common questions about Mariposa’s climate
What is the coldest month in Mariposa?
December, with a typical high of 55° and a low of 36°.
What is the hottest month in Mariposa?
July, with a typical high of 94° and a low of 63°.
What is the rainiest month in Mariposa?
January, with 5.7 inches of rain and melted snow. The year totals 28 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Mariposa itself (about a 3-mile square). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.