San Luis Weather in January
Average highs run from 37°F on January 1 to 38°F on January 31, and lows from 7°F to 7°F. Normal precipitation for the month is 0.38 in over about 2 wet days.
January day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
January at a glance
- Average high
- 37°F
- Average low
- 6°F
- Precipitation
- 0.38 in
- Record high
- 65°FJan 21, 2005
- Record low
- -16°FJan 13, 1997
- Chance of a freeze
- 100%
- Daylight
- 9 h 39 min to 10 h 21 min
- Cloud cover
- 60%
- Humidity
- 73%
- Dew point
- 14°F
- Wind
- 7.6 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Jan 1 | 37°F | 7°F | 58°F 2018 | -6°F 2016 | 7% |
| Jan 2 | 37°F | 7°F | 64°F 1997 | -1°F 2011 | 7% |
| Jan 3 | 37°F | 7°F | 62°F 1997 | -6°F 2016 | 7% |
| Jan 4 | 37°F | 7°F | 60°F 1997 | -1°F 2013 | 7% |
| Jan 5 | 37°F | 7°F | 59°F 2001 | -1°F 2013 | 7% |
| Jan 6 | 37°F | 6°F | 58°F 2001 | -6°F 1996 | 7% |
| Jan 7 | 37°F | 6°F | 64°F 2003 | -5°F 2017 | 7% |
| Jan 8 | 37°F | 6°F | 60°F 2003 | -5°F 2017 | 7% |
| Jan 9 | 37°F | 6°F | 59°F 2003 | 1°F 2016 | 7% |
| Jan 10 | 37°F | 6°F | 58°F 2018 | 1°F 2016 | 7% |
| Jan 11 | 37°F | 6°F | 55°F 1990 | -1°F 2011 | 7% |
| Jan 12 | 37°F | 6°F | 55°F 1990 | -15°F 1997 | 7% |
| Jan 13 | 37°F | 6°F | 60°F 1996 | -16°F 1997 | 7% |
| Jan 14 | 37°F | 6°F | 55°F 1996 | -8°F 2013 | 7% |
| Jan 15 | 37°F | 6°F | 57°F 1996 | -13°F 2007 | 7% |
| Jan 16 | 37°F | 6°F | 57°F 1996 | -5°F 2007 | 8% |
| Jan 17 | 37°F | 6°F | 59°F 2000 | -11°F 2008 | 8% |
| Jan 18 | 37°F | 6°F | 54°F 2000 | -7°F 1996 | 8% |
| Jan 19 | 37°F | 6°F | 55°F 2000 | -4°F 1988 | 8% |
| Jan 20 | 37°F | 6°F | 60°F 2018 | 0°F 1988 | 8% |
| Jan 21 | 37°F | 6°F | 65°F 2005 | 0°F 2016 | 8% |
| Jan 22 | 37°F | 6°F | 59°F 2005 | 1°F 2007 | 8% |
| Jan 23 | 37°F | 6°F | 53°F 1994 | 1°F 1988 | 8% |
| Jan 24 | 37°F | 6°F | 60°F 2013 | 2°F 2002 | 9% |
| Jan 25 | 37°F | 6°F | 61°F 2005 | 1°F 2002 | 9% |
| Jan 26 | 37°F | 6°F | 54°F 1999 | -2°F 2004 | 9% |
| Jan 27 | 37°F | 7°F | 61°F 2015 | -2°F 2017 | 9% |
| Jan 28 | 38°F | 7°F | 57°F 2015 | -2°F 2014 | 10% |
| Jan 29 | 38°F | 7°F | 61°F 2011 | -2°F 2017 | 10% |
| Jan 30 | 38°F | 7°F | 57°F 2011 | 2°F 1994 | 10% |
| Jan 31 | 38°F | 7°F | 58°F 2018 | -4°F 1994 | 10% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (MST).
- January 1
- sunrise 7:16 AM, sunset 4:55 PM
- January 31
- sunrise 7:05 AM, sunset 5:26 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00057430 (San Luis 1 S), public domain. Records: NOAA GHCN-Daily, station USC00057572, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.