Hayward Weather in January
Average highs run from 25°F on January 1 to 25°F on January 31, and lows from 5°F to 2°F. Normal precipitation for the month is 0.89 in over about 9 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
- 24°F
- Average low
- 3°F
- Precipitation
- 0.89 in
- Snowfall
- 12.0 in
- Record high
- 51°FJan 8, 2003
- Record low
- -38°FJan 24, 2026
- Chance of a freeze
- 100%
- Daylight
- 8 h 43 min to 9 h 41 min
- Cloud cover
- 70%
- Humidity
- 95%
- Dew point
- 8°F
- Wind
- 9.2 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Jan 1 | 25°F | 5°F | 38°F 1998 | -26°F 1999 | 30% | 28% |
| Jan 2 | 25°F | 5°F | 40°F 1998 | -29°F 2010 | 30% | 28% |
| Jan 3 | 25°F | 5°F | 42°F 2007 | -26°F 2014 | 30% | 28% |
| Jan 4 | 24°F | 5°F | 42°F 2019 | -20°F 1999 | 30% | 28% |
| Jan 5 | 24°F | 4°F | 43°F 2012 | -27°F 2014 | 30% | 28% |
| Jan 6 | 24°F | 4°F | 45°F 2012 | -28°F 2014 | 30% | 28% |
| Jan 7 | 24°F | 4°F | 45°F 2003 | -27°F 2014 | 30% | 28% |
| Jan 8 | 24°F | 4°F | 51°F 2003 | -31°F 2014 | 30% | 28% |
| Jan 9 | 24°F | 3°F | 45°F 2002 | -31°F 2014 | 30% | 28% |
| Jan 10 | 24°F | 3°F | 50°F 2012 | -24°F 1999 | 29% | 28% |
| Jan 11 | 24°F | 3°F | 50°F 2018 | -22°F 2016 | 29% | 28% |
| Jan 12 | 24°F | 3°F | 43°F 2006 | -23°F 1999 | 29% | 28% |
| Jan 13 | 24°F | 3°F | 38°F 2026 | -28°F 1999 | 29% | 28% |
| Jan 14 | 24°F | 3°F | 37°F 2026 | -25°F 2018 | 29% | 28% |
| Jan 15 | 24°F | 3°F | 38°F 2023 | -25°F 2009 | 29% | 28% |
| Jan 16 | 24°F | 2°F | 42°F 1999 | -33°F 2009 | 29% | 28% |
| Jan 17 | 24°F | 2°F | 45°F 2017 | -31°F 2005 | 29% | 28% |
| Jan 18 | 24°F | 2°F | 40°F 2017 | -25°F 1997 | 29% | 28% |
| Jan 19 | 24°F | 2°F | 43°F 2017 | -23°F 2025 | 28% | 28% |
| Jan 20 | 24°F | 2°F | 40°F 2018 | -28°F 2025 | 28% | 27% |
| Jan 21 | 24°F | 2°F | 39°F 2017 | -32°F 2011 | 28% | 27% |
| Jan 22 | 24°F | 2°F | 44°F 2002 | -23°F 2013 | 28% | 27% |
| Jan 23 | 24°F | 2°F | 38°F 2015 | -29°F 2026 | 28% | 27% |
| Jan 24 | 24°F | 2°F | 37°F 2015 | -38°F 2026 | 28% | 27% |
| Jan 25 | 24°F | 2°F | 43°F 2002 | -31°F 2026 | 27% | 27% |
| Jan 26 | 24°F | 2°F | 47°F 2002 | -36°F 1997 | 27% | 26% |
| Jan 27 | 24°F | 2°F | 48°F 2006 | -26°F 2009 | 27% | 26% |
| Jan 28 | 24°F | 2°F | 46°F 2008 | -23°F 2014 | 27% | 26% |
| Jan 29 | 25°F | 2°F | 40°F 2008 | -25°F 2019 | 27% | 26% |
| Jan 30 | 25°F | 2°F | 45°F 2025 | -28°F 2019 | 27% | 26% |
| Jan 31 | 25°F | 2°F | 45°F 2024 | -33°F 2019 | 26% | 26% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- January 1
- sunrise 7:48 AM, sunset 4:31 PM
- January 31
- sunrise 7:29 AM, sunset 5:10 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00473511 (Hayward RS), public domain. Records: NOAA GHCN-Daily, station USW00094973, 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.