Lompico, CA climate
Lompico has mild winters and pleasant summers. A typical July afternoon reaches 81°, a January night drops to 39°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Lompico feels like
Winter
Spring
Summer
Fall
Lompico 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 | 60° | 39° | 8.9" | 0 | 12 | 0 | 46° – 55° |
| February | 62° | 40° | 8.1" | 0.1" | 12 | 0 | 47° – 56° |
| March | 65° | 42° | 6.1" | 0 | 10 | 0 | 48° – 59° |
| April | 68° | 43° | 2.8" | 0 | 7 | 0 | 52° – 59° |
| May | 73° | 47° | 1.1" | 0 | 4 | 0 | 55° – 64° |
| June | 78° | 49° | 0.2" | 0 | 2 | 0 | 60° – 67° |
| July | 81° | 53° | 0.0" | 0 | 0 | 0 | 63° – 70° |
| August | 83° | 53° | 0.0" | 0 | 1 | 0 | 65° – 72° |
| September | 82° | 51° | 0.1" | 0 | 1 | 0 | 63° – 71° |
| October | 76° | 47° | 1.7" | 0 | 4 | 0 | 58° – 67° |
| November | 66° | 41° | 4.2" | 0 | 8 | 0 | 47° – 58° |
| December | 59° | 39° | 8.7" | 0 | 12 | 0 | 45° – 52° |
| Year | 71° | 45° | 42.1" | 0.1" | 72 | 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 Lompico
Lompico gets 42 inches of rain and melted snow a year. January is the wettest month and July the driest. Rain or snow falls on about 72 days a year.
About 231 frost-free days a year
In half of years the last 32° night comes by March 25 and the first one by November 11. That leaves about 231 frost-free days for gardens, longer than 86% of U.S. towns.
Heating and cooling a home in Lompico
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Lompico, 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.
Lompico and its neighbors
Lompico borders 2 towns with climate data. January nights across them vary by 1.5°. Zayante has both the coldest January nights (39°) and the hottest July afternoons (81°). Lompico’s January low is 39° and its July high 81°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Lompico 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 Lompico averaged 1.9° warmer than the 1900s. The biggest change is in August (+2.4°). The shift is larger than in 90% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Lompico’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 48° to 59°. July is the most reliable, staying within 7°.
Common questions about Lompico’s climate
What is the coldest month in Lompico?
December, with a typical high of 59° and a low of 39°.
What is the hottest month in Lompico?
August, with a typical high of 83° and a low of 53°. About 54 days a year reach 90°.
How much snow does Lompico get?
Almost none. A normal year brings 0.1 inches.
When is the first frost in Lompico?
In half of years the first 32° night comes by November 11, and the last spring frost by March 25.
What is the rainiest month in Lompico?
January, with 8.9 inches of rain and melted snow. The year totals 42 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Lompico itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Ben Lomond #4, CA (2 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.