Mono Vista, CA climate
Mono Vista has mild winters and warm summers. A typical July afternoon reaches 90°, a January night drops to 33°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Mono Vista feels like
Winter
Spring
Summer
Fall
Mono Vista 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° | 33° | 7.3" | 0 | 10 | 0 | 39° – 49° |
| February | 55° | 34° | 6.6" | 0 | 10 | 0 | 40° – 51° |
| March | 59° | 36° | 6.5" | 0 | 10 | 0 | 40° – 54° |
| April | 63° | 38° | 3.5" | 0 | 6 | 0 | 45° – 56° |
| May | 72° | 45° | 1.9" | 0 | 4 | 0 | 50° – 66° |
| June | 82° | 51° | 0.5" | 0 | 1 | 0 | 61° – 71° |
| July | 90° | 57° | 0.0" | 0 | 0 | 0 | 69° – 77° |
| August | 90° | 57° | 0.0" | 0 | 1 | 0 | 69° – 77° |
| September | 85° | 54° | 0.3" | 0 | 1 | 0 | 64° – 73° |
| October | 73° | 46° | 2.1" | 0 | 4 | 0 | 56° – 66° |
| November | 60° | 37° | 4.2" | 0 | 7 | 0 | 40° – 55° |
| December | 52° | 33° | 6.9" | 0 | 10 | 0 | 38° – 48° |
| Year | 69° | 43° | 39.8" | 0.0" | 64 | 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 Mono Vista
Mono Vista gets 40 inches of rain and melted snow a year. January is the wettest month and July the driest. Rain or snow falls on about 64 days a year.
About 213 frost-free days a year
In half of years the last 32° night comes by April 9 and the first one by November 9. That leaves about 213 frost-free days for gardens, longer than 79% of U.S. towns.
Heating and cooling a home in Mono Vista
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Mono Vista, 79% of that work is heating and 21% 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.
Mono Vista and its neighbors
Mono Vista borders 4 towns with climate data. January nights across them vary by 1.4°. Twain Harte has the coldest January nights (33°) and Phoenix Lake the hottest July afternoons (91°). Mono Vista’s January low is 33° and its July high 90°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Mono Vista 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 Mono Vista averaged 0.9° warmer than the 1900s. The biggest change is in January (+2.1°). The shift is smaller than in 79% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Mono Vista’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 50° to 66°. August is the most reliable, staying within 8°.
Common questions about Mono Vista’s climate
What is the coldest month in Mono Vista?
December, with a typical high of 52° and a low of 33°.
What is the hottest month in Mono Vista?
July, with a typical high of 90° and a low of 57°. About 75 days a year reach 90°.
How much snow does Mono Vista get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Mono Vista?
In half of years the first 32° night comes by November 9, and the last spring frost by April 9.
What is the rainiest month in Mono Vista?
January, with 7.3 inches of rain and melted snow. The year totals 40 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Mono Vista itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Sonora, CA (7 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.