San Jacinto weather in October: San Jacinto, California: normal highs, lows, rain and records for October
San Jacinto in October has a normal high of 82°F and a normal low of 53°F, a daily mean of 68°F, falling from 87°F on the 1st to 78°F by the 31st. Measurable precipitation falls on 2 days in a normal October, 0.54 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 28°C and low of 12°C, 14 mm of precipitation in October.
- NOAA stationSan Jacinto
- Station IDUSC00047813
- Location33.80°N 116.98°W
- Elevation1,525 ft (465 m)
- From the center1 miles
- Population55,515
- Jan 66° 40°
- Feb 66° 42°
- Mar 70° 45°
- Apr 74° 48°
- May 80° 53°
- Jun 89° 58°
- Jul 95° 64°
- Aug 97° 64°
- Sep 92° 61°
- Oct 82° 53°
- Nov 73° 44°
- Dec 65° 39°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is San Jacinto in October?
The normal high is 82°F and the normal low 53°F, for a daily mean of 67.5°F. October is 8.8°F cooler than September and 9.0°F warmer than November. October is the 5th warmest month of the year in San Jacinto and the 7th wettest. Across the month the normal high falls 9°F, from 87°F on October 1 to 78°F on October 31. From one year to the next October's mean temperature typically moves about 2.8°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 65°F and 70°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 8%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 87°F | 57°F | 4% | 2% |
| October 8 | 85°F | 55°F | 5% | 3% |
| October 15 | 83°F | 53°F | 6% | 3% |
| October 22 | 81°F | 51°F | 7% | 4% |
| October 31 | 78°F | 49°F | 8% | 4% |
Every day of October: normal high, low and chance of precipitation (warmest afternoon October 1, coldest night October 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| October 1 | 87°F | 57°F | 4% | 2% | 11 h 50 min |
| October 2 | 86°F | 57°F | 4% | 2% | 11 h 50 min |
| October 3 | 86°F | 56°F | 4% | 2% | 11 h 50 min |
| October 4 | 86°F | 56°F | 4% | 2% | 11 h 50 min |
| October 5 | 85°F | 56°F | 4% | 2% | 11 h 40 min |
| October 6 | 85°F | 56°F | 4% | 2% | 11 h 40 min |
| October 7 | 85°F | 55°F | 5% | 3% | 11 h 40 min |
| October 8 | 85°F | 55°F | 5% | 3% | 11 h 40 min |
| October 9 | 84°F | 55°F | 5% | 3% | 11 h 40 min |
| October 10 | 84°F | 54°F | 5% | 3% | 11 h 30 min |
| October 11 | 84°F | 54°F | 5% | 3% | 11 h 30 min |
| October 12 | 83°F | 54°F | 5% | 3% | 11 h 30 min |
| October 13 | 83°F | 54°F | 5% | 3% | 11 h 30 min |
| October 14 | 83°F | 53°F | 5% | 3% | 11 h 30 min |
| October 15 | 83°F | 53°F | 6% | 3% | 11 h 20 min |
| October 16 | 82°F | 53°F | 6% | 3% | 11 h 20 min |
| October 17 | 82°F | 52°F | 6% | 3% | 11 h 20 min |
| October 18 | 82°F | 52°F | 6% | 3% | 11 h 20 min |
| October 19 | 81°F | 52°F | 6% | 3% | 11 h 20 min |
| October 20 | 81°F | 52°F | 6% | 3% | 11 h 10 min |
| October 21 | 81°F | 51°F | 7% | 4% | 11 h 10 min |
| October 22 | 81°F | 51°F | 7% | 4% | 11 h 10 min |
| October 23 | 80°F | 51°F | 7% | 4% | 11 h 10 min |
| October 24 | 80°F | 51°F | 7% | 4% | 11 h 10 min |
| October 25 | 80°F | 50°F | 7% | 4% | 11 h |
| October 26 | 80°F | 50°F | 7% | 4% | 11 h |
| October 27 | 79°F | 50°F | 7% | 4% | 11 h |
| October 28 | 79°F | 49°F | 7% | 4% | 11 h |
| October 29 | 79°F | 49°F | 7% | 4% | 11 h |
| October 30 | 78°F | 49°F | 8% | 4% | 10 h 50 min |
| October 31 | 78°F | 49°F | 8% | 4% | 10 h 50 min |
- Normal high
- 82°FOctober average
- Normal low
- 53°FOctober average
- Precipitation
- 0.54 inmonth total
- Days with precipitation
- 20.01 inch or more
- Days at 90°F or more
- 10
- Daylight
- 11 h 50 min to 10 h 50 minOctober 1 to October 31
- Days at 70°F or more
- 28
- Days at 80°F or more
- 21
- Sunshine
- 92%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00047813; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in San Jacinto in October?
On a given October day the chance of 0.01 inch or more is 6% on average, highest around October 31 (8%). In all, 0.54 in falls on 2 days of a normal October.
In a normal October in San Jacinto, 10 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00047813.
What are the records for October in San Jacinto?
The October mean against the 1991-2020 normal of 67.5°F: 2021 65.3°F (−2.2), 2022 70.0°F (+2.5), 2023 70.3°F (+2.8), 2024 72.7°F (+5.2), 2025 68.9°F (+1.4). 4 of 5 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 65.3°F | −2.2°F | 0.77 in |
| 2022 | 70.0°F | +2.5°F | 0.47 in |
| 2023 | 70.3°F | +2.8°F | 0.02 in |
| 2024 | 72.7°F | +5.2°F | 0.00 in |
| 2025 | 68.9°F | +1.4°F | 0.37 in |
Source: recent months: ACIS, station USC00047813. Records and recent months use complete months only.
How does October in San Jacinto compare across California?
Across the 219 places PlainClimate covers in California, October normal highs run from 58°F in Tahoma to 93°F in Brawley; San Jacinto's is 82°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- San Jacinto in September92°F by day, 61°F at night
- San Jacinto in November73°F by day, 44°F at night
- San Jacinto through the yearEvery month, frost dates, records and recent years
- California in OctoberThe statewide normal and the warmest and coolest places
- Brawley: California's warmest Octobernormal high 93°F