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What is Alleghany, CA, Weather Like in October?
During the month of October, Alleghany, CA,
has an average daytime high temperature of 73°F and an average overnight low temperature dropping to 39°F.
Around 3.34 inches of precipitation is received during the month,
with about 46.30 inches falling in a typical year.
0.10 inches of snow is the mean amount received during October.
Annually, Alleghany receives around 19.90 inches of snow.
October 2025: Actual vs. Average Temperatures
Showing temperatures through today (October 22, 2025)
Actual High
Average High
Actual Low
Average Low
Month Summary
Average High: 74.5 F
(+0.1 vs avg)
Average Low: 54 F
(+13.6 vs avg)
Nighttime temperatures were significantly above average.
Actual data from: MID_E2457
Alleghany, CA Daily Weather Averages for October
Recorded at Downieville
(usc00042500),
6.6 miles
N of
Alleghany, CA
| Day | Avg Temps (°F) | Precip (in) | Snow (in) | Degree Days (°F) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Low | High | Mean | Month | Year | Month | Year | Heat | Cool | |
| 10/1 | 43 F | 79 F | 61 F | 0.05" | 43.01" | 0.00" | 19.80" | 4.9 F | 0.7 F |
| 10/2 | 43 F | 78 F | 61 F | 0.11" | 43.07" | 0.00" | 19.80" | 5.2 F | 0.6 F |
| 10/3 | 42 F | 78 F | 60 F | 0.17" | 43.13" | 0.00" | 19.80" | 5.5 F | 0.6 F |
| 10/4 | 42 F | 78 F | 60 F | 0.23" | 43.19" | 0.00" | 19.80" | 5.8 F | 0.6 F |
| 10/5 | 42 F | 77 F | 60 F | 0.29" | 43.25" | 0.00" | 19.80" | 6.1 F | 0.5 F |
| 10/6 | 42 F | 77 F | 59 F | 0.36" | 43.32" | 0.00" | 19.80" | 6.4 F | 0.5 F |
| 10/7 | 41 F | 76 F | 59 F | 0.42" | 43.38" | 0.00" | 19.80" | 6.7 F | 0.4 F |
| 10/8 | 41 F | 76 F | 58 F | 0.49" | 43.45" | 0.00" | 19.80" | 7 F | 0.4 F |
| 10/9 | 41 F | 75 F | 58 F | 0.56" | 43.52" | 0.00" | 19.80" | 7.3 F | 0.3 F |
| 10/10 | 41 F | 75 F | 58 F | 0.64" | 43.60" | 0.00" | 19.80" | 7.6 F | 0.3 F |
| 10/11 | 40 F | 74 F | 57 F | 0.72" | 43.68" | 0.00" | 19.80" | 7.9 F | 0.2 F |
| 10/12 | 40 F | 74 F | 57 F | 0.81" | 43.77" | 0.00" | 19.80" | 8.2 F | 0.2 F |
| 10/13 | 40 F | 74 F | 57 F | 0.89" | 43.85" | 0.00" | 19.80" | 8.5 F | 0.1 F |
| 10/14 | 40 F | 73 F | 56 F | 0.99" | 43.95" | 0.00" | 19.80" | 8.9 F | 0.1 F |
| 10/15 | 39 F | 73 F | 56 F | 1.09" | 44.05" | 0.00" | 19.80" | 9.2 F | 0.1 F |
| 10/16 | 39 F | 72 F | 56 F | 1.20" | 44.16" | 0.00" | 19.80" | 9.6 F | 0.1 F |
| 10/17 | 39 F | 72 F | 55 F | 1.31" | 44.27" | 0.00" | 19.80" | 9.9 F | 0.1 F |
| 10/18 | 39 F | 71 F | 55 F | 1.43" | 44.39" | 0.00" | 19.80" | 10.3 F | N/A |
| 10/19 | 38 F | 71 F | 54 F | 1.55" | 44.51" | 0.00" | 19.80" | 10.6 F | N/A |
| 10/20 | 38 F | 70 F | 54 F | 1.68" | 44.64" | 0.00" | 19.80" | 11 F | N/A |
| 10/21 | 38 F | 70 F | 54 F | 1.81" | 44.77" | 0.00" | 19.80" | 11.4 F | N/A |
| 10/22 | 38 F | 69 F | 53 F | 1.94" | 44.90" | 0.00" | 19.80" | 11.8 F | N/A |
| 10/23 | 37 F | 68 F | 53 F | 2.08" | 45.04" | 0.00" | 19.80" | 12.1 F | N/A |
| 10/24 | 37 F | 68 F | 53 F | 2.22" | 45.18" | 0.00" | 19.80" | 12.5 F | N/A |
| 10/25 | 37 F | 67 F | 52 F | 2.37" | 45.33" | 0.00" | 19.80" | 12.9 F | N/A |
| 10/26 | 37 F | 67 F | 52 F | 2.54" | 45.50" | 0.10" | 19.90" | 13.3 F | N/A |
| 10/27 | 37 F | 66 F | 51 F | 2.70" | 45.66" | 0.10" | 19.90" | 13.6 F | N/A |
| 10/28 | 36 F | 66 F | 51 F | 2.86" | 45.82" | 0.10" | 19.90" | 14 F | N/A |
| 10/29 | 36 F | 65 F | 51 F | 3.02" | 45.98" | 0.10" | 19.90" | 14.4 F | N/A |
| 10/30 | 36 F | 65 F | 50 F | 3.18" | 46.14" | 0.10" | 19.90" | 14.8 F | N/A |
| 10/31 | 36 F | 64 F | 50 F | 3.34" | 46.30" | 0.10" | 19.90" | 15.1 F | N/A |
