Fallbrook weather in January: Fallbrook, California: normal highs, lows, rain and records for January
Fallbrook in January has a normal high of 68°F and a normal low of 47°F, a daily mean of 57°F, holding near 68°F all month. Measurable precipitation falls on 6 days in a normal January, 3.17 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 20°C and low of 9°C, 81 mm of precipitation in January.
- NOAA stationFallbrook (5 mi NE)
- Station IDUSW00053151
- Location33.44°N 117.19°W
- Elevation1,140 ft (348 m)
- From the center5 miles
- Population (census place)32,467
- Jan 68° 47°
- Feb 67° 46°
- Mar 70° 48°
- Apr 72° 51°
- May 75° 53°
- Jun 81° 56°
- Jul 87° 60°
- Aug 89° 62°
- Sep 88° 62°
- Oct 83° 58°
- Nov 74° 52°
- Dec 67° 46°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Fallbrook in January?
The normal high is 68°F and the normal low 47°F, for a daily mean of 57.4°F. January is 0.8°F warmer than December and 0.8°F warmer than February. January is the 10th warmest month of the year in Fallbrook and the 2nd wettest. Across the month the normal high falls 2°F, from 68°F on January 1 to 66°F on January 31. From one year to the next January's mean temperature typically moves about 2.9°F either way (NOAA's standard deviation), so roughly two Januarys in three average between 55°F and 60°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 21%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| January 1 | 68°F | 47°F | 20% | 14% |
| January 8 | 68°F | 47°F | 19% | 14% |
| January 15 | 68°F | 48°F | 19% | 13% |
| January 22 | 67°F | 48°F | 20% | 13% |
| January 31 | 66°F | 47°F | 21% | 12% |
Every day of January: normal high, low and chance of precipitation (warmest afternoon January 6, coldest night January 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| January 1 | 68°F | 47°F | 20% | 14% | 10 h |
| January 2 | 68°F | 47°F | 20% | 14% | 10 h |
| January 3 | 68°F | 47°F | 20% | 14% | 10 h |
| January 4 | 68°F | 47°F | 20% | 14% | 10 h |
| January 5 | 68°F | 47°F | 20% | 14% | 10 h |
| January 6 | 68°F | 47°F | 20% | 14% | 10 h |
| January 7 | 68°F | 47°F | 19% | 14% | 10 h |
| January 8 | 68°F | 47°F | 19% | 14% | 10 h |
| January 9 | 68°F | 47°F | 19% | 13% | 10 h |
| January 10 | 68°F | 48°F | 19% | 13% | 10 h |
| January 11 | 68°F | 48°F | 19% | 13% | 10 h 10 min |
| January 12 | 68°F | 48°F | 19% | 13% | 10 h 10 min |
| January 13 | 68°F | 48°F | 19% | 13% | 10 h 10 min |
| January 14 | 68°F | 48°F | 19% | 13% | 10 h 10 min |
| January 15 | 68°F | 48°F | 19% | 13% | 10 h 10 min |
| January 16 | 68°F | 48°F | 19% | 13% | 10 h 10 min |
| January 17 | 68°F | 48°F | 20% | 13% | 10 h 10 min |
| January 18 | 68°F | 48°F | 20% | 13% | 10 h 10 min |
| January 19 | 68°F | 48°F | 20% | 13% | 10 h 10 min |
| January 20 | 68°F | 48°F | 20% | 13% | 10 h 20 min |
| January 21 | 67°F | 48°F | 20% | 13% | 10 h 20 min |
| January 22 | 67°F | 48°F | 20% | 13% | 10 h 20 min |
| January 23 | 67°F | 48°F | 20% | 13% | 10 h 20 min |
| January 24 | 67°F | 48°F | 20% | 12% | 10 h 20 min |
| January 25 | 67°F | 48°F | 20% | 12% | 10 h 20 min |
| January 26 | 67°F | 47°F | 20% | 12% | 10 h 20 min |
| January 27 | 67°F | 47°F | 21% | 12% | 10 h 30 min |
| January 28 | 67°F | 47°F | 21% | 12% | 10 h 30 min |
| January 29 | 67°F | 47°F | 21% | 12% | 10 h 30 min |
| January 30 | 67°F | 47°F | 21% | 12% | 10 h 30 min |
| January 31 | 66°F | 47°F | 21% | 12% | 10 h 30 min |
- Normal high
- 68°FJanuary average
- Normal low
- 47°FJanuary average
- Precipitation
- 3.17 inmonth total
- Days with precipitation
- 60.01 inch or more
- Daylight
- 10 h to 10 h 30 minJanuary 1 to January 31
- Days at 70°F or more
- 16
- Days at 80°F or more
- 5
- Sunshine
- 85%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00053151; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Fallbrook in January?
On a given January day the chance of 0.01 inch or more is 20% on average, highest around January 31 (21%). In all, 3.17 in falls on 6 days of a normal January, 1 of them with an inch or more.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00053151.
What are the records for January in Fallbrook?
The January mean against the 1991-2020 normal of 57.4°F: 2021 58.5°F (+1.1), 2022 59.8°F (+2.4), 2023 52.8°F (−4.6), 2024 56.1°F (−1.3), 2025 58.1°F (+0.7), 2026 62.0°F (+4.6). 4 of 6 ran warmer than normal.
| January | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 58.5°F | +1.1°F | 2.19 in |
| 2022 | 59.8°F | +2.4°F | 0.19 in |
| 2023 | 52.8°F | −4.6°F | 8.19 in |
| 2024 | 56.1°F | −1.3°F | 3.23 in |
| 2025 | 58.1°F | +0.7°F | 0.82 in |
| 2026 | 62.0°F | +4.6°F | 2.95 in |
Source: recent months: ACIS, station USW00053151. Records and recent months use complete months only.
How does January in Fallbrook 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; Fallbrook's is 68°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.