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What is Posey, CA, Weather Like in October?
During the month of October, Posey, CA,
has an average daytime high temperature of 74°F and an average overnight low temperature dropping to 38°F.
Around 0.86 inches of precipitation is received during the month,
with about 14.17 inches falling in a typical year.
As you might expect, snow is not common in the month of October.
Annually, Posey receives around 4.90 inches of snow.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 25, 2025)
Actual High
Average High
Actual Low
Average Low
Month Summary
Average High: 69.2 F
(-5.3 vs avg)
Average Low: 36.9 F
(-1.9 vs avg)
Daytime temperatures were significantly below average.
Actual data from: MID_689SE
Posey, CA Daily Weather Averages for October
Recorded at Glennville
(usc00043463),
5.5 miles
S of
Posey, CA
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 42 F | 79 F | 60 F | 0.01" | 13.32" | 0.00" | 4.90" | 5.4 F | 0.6 F |
| 10/2 | 41 F | 78 F | 60 F | 0.03" | 13.34" | 0.00" | 4.90" | 5.7 F | 0.6 F |
| 10/3 | 41 F | 78 F | 60 F | 0.05" | 13.36" | 0.00" | 4.90" | 6 F | 0.5 F |
| 10/4 | 41 F | 78 F | 59 F | 0.06" | 13.37" | 0.00" | 4.90" | 6.3 F | 0.5 F |
| 10/5 | 41 F | 77 F | 59 F | 0.08" | 13.39" | 0.00" | 4.90" | 6.6 F | 0.5 F |
| 10/6 | 40 F | 77 F | 59 F | 0.10" | 13.41" | 0.00" | 4.90" | 6.9 F | 0.5 F |
| 10/7 | 40 F | 76 F | 58 F | 0.12" | 13.43" | 0.00" | 4.90" | 7.2 F | 0.4 F |
| 10/8 | 40 F | 76 F | 58 F | 0.14" | 13.45" | 0.00" | 4.90" | 7.5 F | 0.4 F |
| 10/9 | 40 F | 76 F | 58 F | 0.15" | 13.46" | 0.00" | 4.90" | 7.8 F | 0.4 F |
| 10/10 | 39 F | 75 F | 57 F | 0.17" | 13.48" | 0.00" | 4.90" | 8 F | 0.3 F |
| 10/11 | 39 F | 75 F | 57 F | 0.19" | 13.50" | 0.00" | 4.90" | 8.3 F | 0.3 F |
| 10/12 | 39 F | 75 F | 57 F | 0.21" | 13.52" | 0.00" | 4.90" | 8.6 F | 0.2 F |
| 10/13 | 39 F | 74 F | 56 F | 0.23" | 13.54" | 0.00" | 4.90" | 8.9 F | 0.2 F |
| 10/14 | 38 F | 74 F | 56 F | 0.26" | 13.57" | 0.00" | 4.90" | 9.1 F | 0.2 F |
| 10/15 | 38 F | 74 F | 56 F | 0.28" | 13.59" | 0.00" | 4.90" | 9.4 F | 0.1 F |
| 10/16 | 38 F | 73 F | 55 F | 0.31" | 13.62" | 0.00" | 4.90" | 9.7 F | 0.1 F |
| 10/17 | 38 F | 73 F | 55 F | 0.34" | 13.65" | 0.00" | 4.90" | 10 F | 0.1 F |
| 10/18 | 37 F | 72 F | 55 F | 0.37" | 13.68" | 0.00" | 4.90" | 10.2 F | 0.1 F |
| 10/19 | 37 F | 72 F | 55 F | 0.40" | 13.71" | 0.00" | 4.90" | 10.5 F | 0.1 F |
| 10/20 | 37 F | 72 F | 54 F | 0.43" | 13.74" | 0.00" | 4.90" | 10.8 F | N/A |
| 10/21 | 37 F | 71 F | 54 F | 0.46" | 13.77" | 0.00" | 4.90" | 11 F | N/A |
| 10/22 | 36 F | 71 F | 54 F | 0.49" | 13.80" | 0.00" | 4.90" | 11.3 F | N/A |
| 10/23 | 36 F | 71 F | 53 F | 0.52" | 13.83" | 0.00" | 4.90" | 11.6 F | N/A |
| 10/24 | 36 F | 70 F | 53 F | 0.55" | 13.86" | 0.00" | 4.90" | 11.8 F | N/A |
| 10/25 | 36 F | 70 F | 53 F | 0.58" | 13.89" | 0.00" | 4.90" | 12.1 F | N/A |
| 10/26 | 36 F | 70 F | 53 F | 0.62" | 13.93" | 0.00" | 4.90" | 12.4 F | N/A |
| 10/27 | 35 F | 69 F | 52 F | 0.66" | 13.97" | 0.00" | 4.90" | 12.6 F | N/A |
| 10/28 | 35 F | 69 F | 52 F | 0.71" | 14.02" | 0.00" | 4.90" | 12.9 F | N/A |
| 10/29 | 35 F | 69 F | 52 F | 0.76" | 14.07" | 0.00" | 4.90" | 13.2 F | N/A |
| 10/30 | 35 F | 68 F | 52 F | 0.81" | 14.12" | 0.00" | 4.90" | 13.4 F | N/A |
| 10/31 | 35 F | 68 F | 51 F | 0.86" | 14.17" | 0.00" | 4.90" | 13.7 F | N/A |
