Posey has mild winters and hot summers, with very little rain
A typical July afternoon reaches 93°, a January night drops to 35°.
A year in Posey at a glance
Each month’s typical high and low, and what it brings.
What stands out about Posey’s climate
Read from where Posey sits among California’s towns. The page puts what stands out first.
What a year in Posey feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
Rain and snow in Posey
January is the wettest month and July the driest.
Rain + melted snow by month
Inches of water
Snowfall by month
No snow records from a nearby station.
Living with Posey’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
Months averaging under 55° run from November through April.
The nicest months are April, May and October.
Parks & trails →Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.
Natural hazards →Warmer than it used to be
The last 30 years in Posey averaged 1.9° warmer than the 1900s. The biggest change is in January (+2.5°).
A bigger shift than in 91% of U.S. towns.
Change by month
How Posey compares
Against every U.S. town on TownTapestry, each counted once, with its place in California.
Posey 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 | 58° | 35° | 3.3" | 42° – 52° |
| February | 58° | 36° | 3.1" | 41° – 54° |
| March | 62° | 38° | 2.8" | 43° – 56° |
| April | 67° | 41° | 1.3" | 49° – 58° |
| May | 76° | 48° | 0.6" | 54° – 69° |
| June | 86° | 55° | 0.1" | 64° – 75° |
| July | 93° | 62° | 0.1" | 73° – 81° |
| August | 93° | 61° | 0.1" | 73° – 80° |
| September | 87° | 56° | 0.1" | 67° – 76° |
| October | 76° | 48° | 0.5" | 58° – 67° |
| November | 64° | 39° | 1.5" | 44° – 56° |
| December | 57° | 34° | 3.0" | 42° – 49° |
| Year | 73° | 46° | 16.6" |
How much a month can swing
A normal is an average. May swings the most: from 1991 to 2020 its average ranged from 54° to 69°. December is the most reliable, staying within 7°.
Common questions about Posey’s climate
What is the coldest month in Posey?
December, with a typical high of 57° and a low of 34°.
What is the hottest month in Posey?
July, with a typical high of 93° and a low of 62°.
What is the rainiest month in Posey?
January, with 3.3 inches of rain and melted snow. The year totals 17 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Posey.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Posey 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. Today’s forecast: National Weather Service.