Modesto weather in January: Modesto, California: normal highs, lows, rain and records for January
Modesto in January has a normal high of 56°F and a normal low of 39°F, a daily mean of 48°F, rising from 55°F on the 1st to 59°F by the 31st. Measurable precipitation falls on 10 days in a normal January, 2.57 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 13°C and low of 4°C, 65 mm of precipitation in January.
- NOAA stationModesto City County Airport
- Station IDUSW00023258
- Location37.62°N 120.95°W
- Elevation73 ft (22 m)
- From the center3 miles
- Population220,592
- Jan 56° 39°
- Feb 62° 42°
- Mar 68° 45°
- Apr 74° 48°
- May 82° 54°
- Jun 90° 59°
- Jul 95° 63°
- Aug 94° 62°
- Sep 89° 59°
- Oct 79° 52°
- Nov 66° 43°
- Dec 56° 39°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Modesto in January?
The normal high is 56°F and the normal low 39°F, for a daily mean of 47.5°F. January is 0.1°F warmer than December and 4.5°F cooler than February. January is the 11th warmest month of the year in Modesto and the wettest. Across the month the normal high rises 4°F, from 55°F on January 1 to 59°F on January 31. From one year to the next January's mean temperature typically moves about 2.3°F either way (NOAA's standard deviation), so roughly two Januarys in three average between 45°F and 50°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 31%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| January 1 | 55°F | 38°F | 30% | 18% |
| January 8 | 55°F | 38°F | 31% | 18% |
| January 15 | 56°F | 39°F | 31% | 18% |
| January 22 | 57°F | 39°F | 31% | 19% |
| January 31 | 59°F | 40°F | 31% | 19% |
Every day of January: normal high, low and chance of precipitation (warmest afternoon January 31, coldest night January 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| January 1 | 55°F | 38°F | 30% | 18% | 9 h 40 min |
| January 2 | 55°F | 38°F | 31% | 18% | 9 h 40 min |
| January 3 | 55°F | 38°F | 31% | 18% | 9 h 40 min |
| January 4 | 55°F | 38°F | 31% | 18% | 9 h 40 min |
| January 5 | 55°F | 38°F | 31% | 18% | 9 h 40 min |
| January 6 | 55°F | 38°F | 31% | 18% | 9 h 40 min |
| January 7 | 55°F | 38°F | 31% | 18% | 9 h 40 min |
| January 8 | 55°F | 38°F | 31% | 18% | 9 h 40 min |
| January 9 | 55°F | 38°F | 31% | 18% | 9 h 40 min |
| January 10 | 55°F | 38°F | 31% | 18% | 9 h 40 min |
| January 11 | 55°F | 38°F | 31% | 18% | 9 h 40 min |
| January 12 | 55°F | 39°F | 31% | 18% | 9 h 50 min |
| January 13 | 56°F | 39°F | 31% | 18% | 9 h 50 min |
| January 14 | 56°F | 39°F | 31% | 18% | 9 h 50 min |
| January 15 | 56°F | 39°F | 31% | 18% | 9 h 50 min |
| January 16 | 56°F | 39°F | 31% | 18% | 9 h 50 min |
| January 17 | 56°F | 39°F | 31% | 18% | 9 h 50 min |
| January 18 | 56°F | 39°F | 31% | 18% | 9 h 50 min |
| January 19 | 56°F | 39°F | 31% | 18% | 10 h |
| January 20 | 56°F | 39°F | 31% | 18% | 10 h |
| January 21 | 57°F | 39°F | 31% | 19% | 10 h |
| January 22 | 57°F | 39°F | 31% | 19% | 10 h |
| January 23 | 57°F | 39°F | 31% | 19% | 10 h |
| January 24 | 57°F | 39°F | 31% | 19% | 10 h |
| January 25 | 57°F | 39°F | 31% | 19% | 10 h |
| January 26 | 57°F | 39°F | 31% | 19% | 10 h 10 min |
| January 27 | 58°F | 40°F | 31% | 19% | 10 h 10 min |
| January 28 | 58°F | 40°F | 31% | 19% | 10 h 10 min |
| January 29 | 58°F | 40°F | 31% | 19% | 10 h 10 min |
| January 30 | 58°F | 40°F | 31% | 19% | 10 h 10 min |
| January 31 | 59°F | 40°F | 31% | 19% | 10 h 20 min |
- Normal high
- 56°FJanuary average
- Normal low
- 39°FJanuary average
- Precipitation
- 2.57 inmonth total
- Days with precipitation
- 100.01 inch or more
- Nights at 32°F or colder
- 5
- Daylight
- 9 h 40 min to 10 h 20 minJanuary 1 to January 31
- Sunshine
- 71%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00023258; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Modesto in January?
On a given January day the chance of 0.01 inch or more is 31% on average, highest around January 22 (31%). In all, 2.57 in falls on 10 days of a normal January.
In a normal January in Modesto, 5 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00023258.
What are the records for January in Modesto?
The warmest January temperature on this station's record (since 1927) is 75°F, on January 17, 1998; the coldest is 18°F, on January 11, 1949. The wettest January brought 7.27 in (1995); the snowiest, 1.5 inches (1962).
The January mean against the 1991-2020 normal of 47.5°F: 2021 47.9°F (+0.4), 2022 48.5°F (+1.0), 2023 47.7°F (+0.2), 2024 50.0°F (+2.5), 2025 47.5°F (at normal), 2026 49.2°F (+1.7). 5 of 6 ran warmer than normal.
| January | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 47.9°F | +0.4°F | 3.90 in |
| 2022 | 48.5°F | +1.0°F | 0.00 in |
| 2023 | 47.7°F | +0.2°F | 5.30 in |
| 2024 | 50.0°F | +2.5°F | 4.64 in |
| 2025 | 47.5°F | at normal | 0.41 in |
| 2026 | 49.2°F | +1.7°F | 1.90 in |
Source: records: ACIS, station USW00023258; recent months: ACIS, station USW00023258. Records and recent months use complete months only.
How does January in Modesto compare across California?
Across the 219 places PlainClimate covers in California, January normal highs run from 37°F in Tahoma to 72°F in Brawley; Modesto's is 56°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.