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What is Johnsville, CA, Weather Like in October?
During the month of October, Johnsville, CA,
has an average daytime high temperature of 67°F and an average overnight low temperature dropping to 30°F.
Around 1.07 inches of precipitation is received during the month,
with about 17.03 inches falling in a typical year.
0.40 inches of snow is the mean amount received during October.
Annually, Johnsville receives around 28.20 inches of snow.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 24, 2025)
Actual High
Average High
Actual Low
Average Low
Month Summary
Average High: 61.4 F
(-6.8 vs avg)
Average Low: 35 F
(+4.3 vs avg)
Nighttime temperatures were significantly above average.
Actual data from: MID_CQ236
Johnsville, CA Daily Weather Averages for October
Recorded at Portola
(usc00047085),
12.3 miles
ENE of
Johnsville, CA
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 34 F | 73 F | 53 F | 0.03" | 15.99" | 0.00" | 27.80" | 11.6 F | N/A |
| 10/2 | 33 F | 73 F | 53 F | 0.05" | 16.01" | 0.00" | 27.80" | 12 F | N/A |
| 10/3 | 33 F | 72 F | 53 F | 0.08" | 16.04" | 0.00" | 27.80" | 12.4 F | N/A |
| 10/4 | 33 F | 72 F | 52 F | 0.11" | 16.07" | 0.00" | 27.80" | 12.7 F | N/A |
| 10/5 | 33 F | 71 F | 52 F | 0.13" | 16.09" | 0.00" | 27.80" | 13.1 F | N/A |
| 10/6 | 32 F | 71 F | 52 F | 0.16" | 16.12" | 0.10" | 27.90" | 13.5 F | N/A |
| 10/7 | 32 F | 70 F | 51 F | 0.19" | 16.15" | 0.10" | 27.90" | 13.8 F | N/A |
| 10/8 | 32 F | 70 F | 51 F | 0.22" | 16.18" | 0.10" | 27.90" | 14.2 F | N/A |
| 10/9 | 31 F | 70 F | 50 F | 0.25" | 16.21" | 0.10" | 27.90" | 14.6 F | N/A |
| 10/10 | 31 F | 69 F | 50 F | 0.28" | 16.24" | 0.10" | 27.90" | 14.9 F | N/A |
| 10/11 | 31 F | 69 F | 50 F | 0.31" | 16.27" | 0.10" | 27.90" | 15.3 F | N/A |
| 10/12 | 31 F | 68 F | 49 F | 0.34" | 16.30" | 0.10" | 27.90" | 15.6 F | N/A |
| 10/13 | 30 F | 68 F | 49 F | 0.37" | 16.33" | 0.20" | 28.00" | 16 F | N/A |
| 10/14 | 30 F | 67 F | 49 F | 0.40" | 16.36" | 0.20" | 28.00" | 16.4 F | N/A |
| 10/15 | 30 F | 67 F | 48 F | 0.43" | 16.39" | 0.20" | 28.00" | 16.7 F | N/A |
| 10/16 | 30 F | 66 F | 48 F | 0.47" | 16.43" | 0.20" | 28.00" | 17.1 F | N/A |
| 10/17 | 29 F | 66 F | 48 F | 0.50" | 16.46" | 0.20" | 28.00" | 17.4 F | N/A |
| 10/18 | 29 F | 66 F | 47 F | 0.53" | 16.49" | 0.20" | 28.00" | 17.8 F | N/A |
| 10/19 | 29 F | 65 F | 47 F | 0.57" | 16.53" | 0.20" | 28.00" | 18.1 F | N/A |
| 10/20 | 29 F | 65 F | 47 F | 0.61" | 16.57" | 0.20" | 28.00" | 18.4 F | N/A |
| 10/21 | 28 F | 64 F | 46 F | 0.64" | 16.60" | 0.30" | 28.10" | 18.8 F | N/A |
| 10/22 | 28 F | 64 F | 46 F | 0.68" | 16.64" | 0.30" | 28.10" | 19.1 F | N/A |
| 10/23 | 28 F | 63 F | 46 F | 0.71" | 16.67" | 0.30" | 28.10" | 19.4 F | N/A |
| 10/24 | 28 F | 63 F | 45 F | 0.75" | 16.71" | 0.30" | 28.10" | 19.7 F | N/A |
| 10/25 | 28 F | 62 F | 45 F | 0.79" | 16.75" | 0.30" | 28.10" | 20.1 F | N/A |
| 10/26 | 27 F | 62 F | 45 F | 0.84" | 16.80" | 0.30" | 28.10" | 20.4 F | N/A |
| 10/27 | 27 F | 62 F | 44 F | 0.88" | 16.84" | 0.30" | 28.10" | 20.7 F | N/A |
| 10/28 | 27 F | 61 F | 44 F | 0.93" | 16.89" | 0.30" | 28.10" | 21 F | N/A |
| 10/29 | 27 F | 61 F | 44 F | 0.98" | 16.94" | 0.40" | 28.20" | 21.3 F | N/A |
| 10/30 | 27 F | 60 F | 43 F | 1.03" | 16.99" | 0.40" | 28.20" | 21.6 F | N/A |
| 10/31 | 26 F | 60 F | 43 F | 1.07" | 17.03" | 0.40" | 28.20" | 21.9 F | N/A |
