Monterey Park, CA climate
Monterey Park has warm winters and warm summers, with very little rain. A typical July afternoon reaches 87°, a January night drops to 47°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Monterey Park feels like
Winter
Spring
Summer
Fall
Monterey Park 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 | 69° | 47° | 3.6" | 0 | 6 | 0 | 54° – 64° |
| February | 69° | 48° | 3.9" | 0 | 6 | 0 | 53° – 66° |
| March | 71° | 50° | 2.6" | 0 | 5 | 0 | 55° – 68° |
| April | 75° | 53° | 0.8" | 0 | 3 | 0 | 59° – 68° |
| May | 77° | 57° | 0.4" | 0 | 2 | 0 | 62° – 72° |
| June | 81° | 60° | 0.1" | 0 | 1 | 0 | 67° – 75° |
| July | 87° | 64° | 0.0" | 0 | 0 | 0 | 72° – 81° |
| August | 88° | 64° | 0.0" | 0 | 0 | 0 | 73° – 79° |
| September | 87° | 63° | 0.1" | 0 | 1 | 0 | 71° – 79° |
| October | 81° | 58° | 0.6" | 0 | 2 | 0 | 65° – 75° |
| November | 74° | 51° | 0.9" | 0 | 2 | 0 | 56° – 67° |
| December | 68° | 46° | 2.5" | 0 | 5 | 0 | 53° – 61° |
| Year | 77° | 55° | 15.5" | 0.0" | 34 | 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 Monterey Park
Monterey Park gets 16 inches of rain and melted snow a year. February is the wettest month and August the driest. Rain or snow falls on about 34 days a year.
A year-round growing season
Heating and cooling a home in Monterey Park
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Monterey Park, 43% of that work is heating and 57% 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.
Monterey Park and its neighbors
Monterey Park borders 6 towns with climate data. January nights across them vary by 1.2°. Rosemead has both the coldest January nights (46°) and the hottest July afternoons (88°). Monterey Park’s January low is 47° and its July high 87°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Monterey Park 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 Monterey Park averaged 2.7° warmer than the 1900s. The biggest change is in January (+3.5°). The shift is larger than in 100% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Monterey Park’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. March swings the most: between 1991 and 2020 its average temperature ranged from 55° to 68°. August is the most reliable, staying within 6°.
Common questions about Monterey Park’s climate
What is the coldest month in Monterey Park?
December, with a typical high of 68° and a low of 46°.
What is the hottest month in Monterey Park?
August, with a typical high of 88° and a low of 64°. About 65 days a year reach 90°.
How much snow does Monterey Park get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Monterey Park?
Frost is uncommon. Only 15% of years see a night at 32° or below.
What is the rainiest month in Monterey Park?
February, with 3.9 inches of rain and melted snow. The year totals 16 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Monterey Park itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Altadena, CA (9 mi, snow) and San Gabriel Fire Dept, CA (3 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.