Milpitas, CA climate
Milpitas has warm winters and pleasant summers, with very little rain. A typical July afternoon reaches 84°, a January night drops to 40°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Milpitas feels like
Winter
Spring
Summer
Fall
Milpitas 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 | 59° | 40° | 2.7" | 0 | 10 | 0 | 47° – 54° |
| February | 63° | 43° | 2.9" | 0 | 12 | 0 | 49° – 58° |
| March | 67° | 45° | 2.3" | 0 | 9 | 0 | 51° – 61° |
| April | 71° | 46° | 1.1" | 0 | 6 | 0 | 55° – 62° |
| May | 75° | 50° | 0.5" | 0 | 4 | 0 | 59° – 68° |
| June | 81° | 54° | 0.1" | 0 | 1 | 0 | 64° – 70° |
| July | 84° | 57° | 0.0" | 0 | 0 | 0 | 68° – 73° |
| August | 84° | 56° | 0.0" | 0 | 0 | 0 | 67° – 74° |
| September | 82° | 55° | 0.1" | 0 | 1 | 0 | 65° – 73° |
| October | 77° | 50° | 0.6" | 0 | 3 | 0 | 61° – 70° |
| November | 66° | 44° | 1.5" | 0 | 7 | 0 | 49° – 59° |
| December | 59° | 40° | 2.6" | 0 | 11 | 0 | 46° – 54° |
| Year | 72° | 48° | 14.4" | 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 Milpitas
Milpitas gets 14 inches of rain and melted snow a year. February is the wettest month and July the driest. Rain or snow falls on about 64 days a year.
A year-round growing season
Heating and cooling a home in Milpitas
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Milpitas, 78% of that work is heating and 22% 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.
Milpitas and its neighbors
Milpitas borders 2 towns with climate data. January nights across them vary by 1.6°. San Jose has both the coldest January nights (39°) and the hottest July afternoons (86°). Milpitas’s January low is 40° and its July high 84°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Milpitas 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 Milpitas averaged 1.9° warmer than the 1900s. The biggest change is in August (+2.2°). The shift is larger than in 90% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Milpitas’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 49° to 59°. July is the most reliable, staying within 6°.
Common questions about Milpitas’s climate
What is the coldest month in Milpitas?
December, with a typical high of 59° and a low of 40°.
What is the hottest month in Milpitas?
August, with a typical high of 84° and a low of 56°. About 16 days a year reach 90°.
How much snow does Milpitas get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Milpitas?
Frost is uncommon. Only 76% of years see a night at 32° or below.
What is the rainiest month in Milpitas?
February, with 2.9 inches of rain and melted snow. The year totals 14 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Milpitas itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at San Jose, CA (6 mi, snow) and San Jose, CA (5 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.