Black Point-Green Point, CA climate
Black Point-Green Point has warm winters and cool summers. A typical July afternoon reaches 72°, a January night drops to 43°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Black Point-Green Point feels like
Winter
Spring
Summer
Fall
Black Point-Green Point 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 | 57° | 43° | 5.7" | 0 | 10 | 0 | 46° – 54° |
| February | 60° | 45° | 5.6" | 0 | 9 | 0 | 48° – 58° |
| March | 62° | 46° | 4.0" | 0 | 9 | 0 | 49° – 59° |
| April | 64° | 48° | 1.8" | 0 | 6 | 0 | 52° – 60° |
| May | 68° | 50° | 0.8" | 0 | 3 | 0 | 54° – 64° |
| June | 72° | 53° | 0.2" | 0 | 1 | 0 | 59° – 65° |
| July | 72° | 54° | 0.0" | 0 | 0 | 0 | 60° – 67° |
| August | 73° | 54° | 0.1" | 0 | 0 | 0 | 61° – 68° |
| September | 74° | 54° | 0.1" | 0 | 0 | 0 | 60° – 68° |
| October | 71° | 51° | 1.4" | 0 | 3 | 0 | 58° – 67° |
| November | 63° | 47° | 3.1" | 0 | 6 | 0 | 49° – 59° |
| December | 57° | 43° | 6.0" | 0 | 10 | 0 | 46° – 55° |
| Year | 66° | 49° | 28.7" | 0.0" | 58 | 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 Black Point-Green Point
Black Point-Green Point gets 29 inches of rain and melted snow a year. December is the wettest month and July the driest. Rain or snow falls on about 58 days a year.
A year-round growing season
Heating and cooling a home in Black Point-Green Point
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Black Point-Green Point, 92% of that work is heating and 8% is cooling, so the furnace matters far more than the air conditioner.
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.
How Black Point-Green Point 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 Black Point-Green Point averaged 1.5° warmer than the 1900s. The biggest change is in January (+2.4°). The shift is larger than in 70% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Black Point-Green Point’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 49° to 59°. June is the most reliable, staying within 6°.
Common questions about Black Point-Green Point’s climate
What is the coldest month in Black Point-Green Point?
January, with a typical high of 57° and a low of 43°.
What is the hottest month in Black Point-Green Point?
September, with a typical high of 74° and a low of 54°. About 5 days a year reach 90°.
How much snow does Black Point-Green Point get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Black Point-Green Point?
Frost is uncommon. Only 22% of years see a night at 32° or below.
What is the rainiest month in Black Point-Green Point?
December, with 6.0 inches of rain and melted snow. The year totals 29 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Black Point-Green Point itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Richmond, CA (15 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.