South Lyon climate

South Lyon Weather in January

NOAA 1991-2020 normals for Whitmore Lake 1NW, 11.1 km from South Lyon

Average highs run from 31°F on January 1 to 31°F on January 31, and lows from 18°F to 12°F. Normal precipitation for the month is 2.38 in.

January day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at South Lyon, in °F, with the record for each date.-20020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

January at a glance

Average high
30°F
Average low
15°F
Precipitation
2.38 in
Snowfall
18.3 in
Record high
69°FJan 25, 1950
Record low
-17°FJan 16, 2009
Chance of a freeze
100%
Daylight
9 h 09 min to 9 h 58 min
Cloud cover
72%
Humidity
89%
Dew point
19°F
Wind
12.8 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.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Jan 131°F18°F54°F 2011-5°F 201843%
Jan 231°F18°F56°F 20001°F 200144%
Jan 331°F18°F59°F 1950-4°F 201444%
Jan 431°F17°F59°F 20230°F 201844%
Jan 531°F17°F52°F 2019-5°F 195945%
Jan 631°F17°F56°F 2008-13°F 201445%
Jan 730°F17°F64°F 2008-13°F 201445%
Jan 830°F16°F60°F 2008-8°F 201446%
Jan 930°F16°F60°F 2026-8°F 201446%
Jan 1030°F16°F58°F 1950-5°F 196246%
Jan 1130°F16°F60°F 20130°F 196246%
Jan 1230°F15°F61°F 20132°F 200947%
Jan 1330°F15°F61°F 1950-5°F 200947%
Jan 1430°F15°F55°F 1950-11°F 200947%
Jan 1530°F15°F59°F 1953-7°F 200947%
Jan 1630°F14°F52°F 1949-17°F 200947%
Jan 1730°F14°F62°F 1952-16°F 200948%
Jan 1830°F14°F56°F 1949-3°F 200548%
Jan 1930°F14°F57°F 19491°F 202648%
Jan 2030°F14°F56°F 1951-4°F 200948%
Jan 2130°F13°F60°F 2017-9°F 201948%
Jan 2230°F13°F56°F 2018-7°F 200048%
Jan 2330°F13°F59°F 1967-13°F 196348%
Jan 2430°F13°F60°F 1950-13°F 196348%
Jan 2530°F13°F69°F 1950-13°F 200448%
Jan 2630°F13°F58°F 1950-5°F 200948%
Jan 2730°F13°F54°F 2002-5°F 200548%
Jan 2830°F12°F55°F 2002-12°F 200548%
Jan 2930°F12°F61°F 2013-6°F 196347%
Jan 3031°F12°F65°F 2013-14°F 201947%
Jan 3131°F12°F58°F 2012-15°F 201947%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at South Lyon, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EST).

January 1
sunrise 8:04 AM, sunset 5:13 PM
January 31
sunrise 7:49 AM, sunset 5:47 PM

Every day of January: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00208972 (Whitmore Lake 1NW), public domain. Records: NOAA GHCN-Daily, station USW00014853, 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.