Merced weather in October: Merced, California: normal highs, lows, rain and records for October
Merced in October has a normal high of 80°F and a normal low of 49°F, a daily mean of 64°F, falling from 86°F on the 1st to 73°F by the 31st. Measurable precipitation falls on 3 days in a normal October, 0.64 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 9°C, 16 mm of precipitation in October.
- NOAA stationMerced Municipal Airport
- Station IDUSW00023257
- Location37.28°N 120.51°W
- Elevation152 ft (46 m)
- Population96,073
- Jan 56° 37°
- Feb 62° 39°
- Mar 68° 42°
- Apr 74° 45°
- May 83° 52°
- Jun 91° 58°
- Jul 96° 62°
- Aug 95° 61°
- Sep 91° 57°
- Oct 80° 49°
- Nov 66° 41°
- Dec 56° 36°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Merced in October?
The normal high is 80°F and the normal low 49°F, for a daily mean of 64.3°F. October is 9.2°F cooler than September and 10.8°F warmer than November. October is the 6th warmest month of the year in Merced and the 7th wettest. Across the month the normal high falls 13°F, from 86°F on October 1 to 73°F on October 31. From one year to the next October's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 62°F and 67°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 17%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 86°F | 53°F | 5% | 2% |
| October 8 | 83°F | 51°F | 7% | 3% |
| October 15 | 80°F | 49°F | 9% | 4% |
| October 22 | 77°F | 47°F | 12% | 5% |
| October 31 | 73°F | 45°F | 17% | 6% |
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 | 86°F | 53°F | 5% | 2% | 11 h 50 min |
| October 2 | 85°F | 53°F | 5% | 3% | 11 h 50 min |
| October 3 | 85°F | 53°F | 5% | 3% | 11 h 50 min |
| October 4 | 85°F | 52°F | 6% | 3% | 11 h 40 min |
| October 5 | 84°F | 52°F | 6% | 3% | 11 h 40 min |
| October 6 | 84°F | 52°F | 6% | 3% | 11 h 40 min |
| October 7 | 83°F | 51°F | 7% | 3% | 11 h 40 min |
| October 8 | 83°F | 51°F | 7% | 3% | 11 h 30 min |
| October 9 | 83°F | 51°F | 7% | 3% | 11 h 30 min |
| October 10 | 82°F | 51°F | 8% | 3% | 11 h 30 min |
| October 11 | 82°F | 50°F | 8% | 3% | 11 h 30 min |
| October 12 | 81°F | 50°F | 8% | 4% | 11 h 20 min |
| October 13 | 81°F | 50°F | 9% | 4% | 11 h 20 min |
| October 14 | 81°F | 50°F | 9% | 4% | 11 h 20 min |
| October 15 | 80°F | 49°F | 9% | 4% | 11 h 20 min |
| October 16 | 80°F | 49°F | 10% | 4% | 11 h 20 min |
| October 17 | 79°F | 49°F | 10% | 4% | 11 h 10 min |
| October 18 | 79°F | 49°F | 11% | 4% | 11 h 10 min |
| October 19 | 79°F | 48°F | 11% | 5% | 11 h 10 min |
| October 20 | 78°F | 48°F | 11% | 5% | 11 h 10 min |
| October 21 | 78°F | 48°F | 12% | 5% | 11 h |
| October 22 | 77°F | 47°F | 12% | 5% | 11 h |
| October 23 | 77°F | 47°F | 13% | 5% | 11 h |
| October 24 | 76°F | 47°F | 13% | 5% | 11 h |
| October 25 | 76°F | 47°F | 14% | 5% | 11 h |
| October 26 | 76°F | 46°F | 14% | 6% | 10 h 50 min |
| October 27 | 75°F | 46°F | 15% | 6% | 10 h 50 min |
| October 28 | 75°F | 46°F | 15% | 6% | 10 h 50 min |
| October 29 | 74°F | 46°F | 16% | 6% | 10 h 50 min |
| October 30 | 74°F | 45°F | 16% | 6% | 10 h 40 min |
| October 31 | 73°F | 45°F | 17% | 6% | 10 h 40 min |
- Normal high
- 80°FOctober average
- Normal low
- 49°FOctober average
- Precipitation
- 0.64 inmonth total
- Days with precipitation
- 30.01 inch or more
- Days at 90°F or more
- 3
- Daylight
- 11 h 50 min to 10 h 40 minOctober 1 to October 31
- Days at 70°F or more
- 27
- Days at 80°F or more
- 15
- Sunshine
- 92%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00023257; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Merced in October?
On a given October day the chance of 0.01 inch or more is 10% on average, highest around October 31 (17%). In all, 0.64 in falls on 3 days of a normal October.
In a normal October in Merced, 3 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00023257.
What are the records for October in Merced?
The warmest October temperature on Merced's official record (since 1899) is 106°F, on October 3, 2024; the coldest is 28°F, on October 14, 1905. The wettest October brought 3.53 in (2000).
The October mean against the 1991-2020 normal of 64.3°F: 2021 63.0°F (−1.3), 2022 67.5°F (+3.2), 2023 66.3°F (+2.0), 2024 69.5°F (+5.2), 2025 63.0°F (−1.3). 3 of 5 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 63.0°F | −1.3°F | 1.73 in |
| 2022 | 67.5°F | +3.2°F | 0.00 in |
| 2023 | 66.3°F | +2.0°F | 0.16 in |
| 2024 | 69.5°F | +5.2°F | 0.00 in |
| 2025 | 63.0°F | −1.3°F | 1.63 in |
Source: records: ACIS, NWS threaded record MCEthr; recent months: ACIS, station USW00023257. Records and recent months use complete months only.
How does October in Merced 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; Merced's is 80°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.