Manchester, CA climate
Manchester has warm winters and cool summers. A typical July afternoon reaches 65°, a January night drops to 43°.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Manchester feels like
Winter
Spring
Summer
Fall
Manchester 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 | 57° | 43° | 7.5" | 47° – 55° |
| February | 58° | 43° | 6.3" | 45° – 56° |
| March | 58° | 44° | 5.9" | 46° – 57° |
| April | 59° | 45° | 3.0" | 48° – 56° |
| May | 61° | 48° | 1.4" | 49° – 59° |
| June | 63° | 50° | 0.4" | 54° – 61° |
| July | 65° | 51° | 0.1" | 55° – 61° |
| August | 65° | 52° | 0.1" | 56° – 62° |
| September | 65° | 51° | 0.3" | 55° – 61° |
| October | 64° | 48° | 2.0" | 52° – 63° |
| November | 60° | 45° | 4.6" | 46° – 56° |
| December | 57° | 42° | 8.9" | 47° – 54° |
| Year | 61° | 47° | 40.3" |
“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 Manchester
Manchester gets 40 inches of rain and melted snow a year. December is the wettest month and July the driest.
How Manchester 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 Manchester averaged 0.9° warmer than the 1900s. The biggest change is in January (+1.4°). The shift is smaller than in 75% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Manchester’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 46° to 57°. July is the most reliable, staying within 6°.
Common questions about Manchester’s climate
What is the coldest month in Manchester?
December, with a typical high of 57° and a low of 42°.
What is the hottest month in Manchester?
September, with a typical high of 65° and a low of 51°.
What is the rainiest month in Manchester?
December, with 8.9 inches of rain and melted snow. The year totals 40 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Manchester 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.