Average temperature in January is -6.4 °C
Average daytime temperature is -0.5 °C
Average night temperature is -11.3 °C
Absolute maximum temperature: 6.9 °C
Absolute minimum temperature: -19.8 °C
Number of sunny days: 20
Number of rainy days:
Number of snow days: 11
Precipitation sum: 23 mm
* Weather data for San Luis United States is based on climate observations for 2023 year
| January (°C) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperature | 6.9 | 4 | -3.5 | -3.6 | 0.4 | 0.9 | -0.4 | 1.8 | 3.1 | 5.2 | 1.7 | 1.2 | 5.5 | 6.7 | 2.4 | 1.4 | 2.9 | -1.5 | -3.5 | -4.3 | -5 | -5.8 | -2.4 | -5.4 | -8.4 | -7.6 | -2.7 | -2 | -1.8 | -1.1 | -1 |
| Apparent max temperature | 1.5 | -1.4 | -8.7 | -7.6 | -3.4 | -5.1 | -3.9 | -2.6 | -2.1 | -1.8 | -3.6 | -3.1 | 1.7 | 0.9 | -2.9 | -4.7 | -3 | -6.4 | -7 | -7.9 | -8.9 | -9.2 | -6.4 | -10.4 | -12.1 | -11.3 | -7.3 | -7.4 | -7.4 | -8 | -5.7 |
| Mean temperature | 2.2 | -1.3 | -5.6 | -9 | -9.4 | -3.5 | -7.3 | -6.4 | -3.8 | 0.6 | -1 | -6.6 | -4.3 | -0.6 | 0 | -2.8 | -1.6 | -6.8 | -10.2 | -9.1 | -8.8 | -11.7 | -8 | -11.8 | -12.3 | -14.7 | -12.4 | -7 | -7.9 | -5.7 | -6 |
| Apparent mean temperature | -5.8 | -8.1 | -13.7 | -22.9 | -21.2 | -15.6 | -17.9 | -17.7 | -16.1 | -8.4 | -10.9 | -19.4 | -15.1 | -12.1 | -7.7 | -11.3 | -9.7 | -15.2 | -21.6 | -16.9 | -16.5 | -24.8 | -15.7 | -24.9 | -23.5 | -24.6 | -23.3 | -19.7 | -21.2 | -17.6 | -14.8 |
| Minimum temperature | -1.1 | -3.4 | -8.5 | -16.8 | -15.4 | -9.7 | -13.6 | -12.3 | -10.4 | -3 | -3.8 | -15.1 | -10.2 | -6.8 | -2.1 | -5.7 | -5.1 | -9.5 | -16.8 | -12.7 | -12.2 | -19.2 | -11.4 | -19.5 | -18.5 | -19.8 | -17.6 | -13.9 | -15 | -11.6 | -9.6 |
| Apparent min temperature | -3 | -5.8 | -11.4 | -14.3 | -13.8 | -9 | -11.6 | -11 | -8.9 | -5.2 | -6.8 | -10.7 | -8.6 | -5.4 | -6 | -8.4 | -6.9 | -12.3 | -14.6 | -13.3 | -13.3 | -16.1 | -12.1 | -16.5 | -16.9 | -19.3 | -17.2 | -12.4 | -13.7 | -11.8 | -11.1 |
| January | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight duration (h) | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 | 10 | 10 | 10 | 10.1 | 10.1 | 10.1 | 10.1 | 10.2 | 10.2 | 10.2 | 10.3 | 10.3 | 10.3 |
| Sunshine duration (h) | 4.4 | 7.5 | 7.8 | 8.4 | 8.7 | 8.3 | 8.7 | 8.7 | 8.8 | 7.6 | 8.7 | 8.8 | 8.8 | 8.6 | 7.3 | 6.9 | 4.4 | 0.9 | 8.3 | 5.5 | 8.2 | 9.1 | 2.6 | 8.2 | 9.2 | 9.2 | 9.3 | 9.3 | 9.3 | 9.4 | 9.4 |
| Precipitation (mm) | 0 | 8.7 | 0.1 | 0 | 0 | 1.9 | 0.2 | 0 | 0 | 0 | 3.2 | 0 | 0 | 0 | 0.4 | 0 | 2.2 | 1.9 | 0 | 1 | 2.7 | 0 | 0.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation hours | 0 | 8 | 1 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 7 | 0 | 0 | 0 | 4 | 0 | 6 | 9 | 0 | 4 | 11 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wind speed (m/s) | 21.4 | 20.5 | 23.9 | 20.3 | 16 | 25 | 13.4 | 12 | 19.5 | 28.9 | 25.6 | 9 | 10.5 | 24.9 | 35.8 | 27.4 | 26.2 | 23 | 11.6 | 11.4 | 16.9 | 11.4 | 10.1 | 13.5 | 13.7 | 12.7 | 20.3 | 23.1 | 25.5 | 28.3 | 20.2 |
In January 2023, the highest daytime temperature in San Luis was 6.9°C.
While the minimum temperature at night dropped to -19.8°C.
The average nighttime and daytime temperatures during January in San Luis are -11.3°C and -0.5°C respectively.
The precipitation sum in January is about 23 mm.