Green Valley climate

Green Valley Weather in January

NOAA 1991-2020 normals for Mason City 4SE, 27.1 km from Green Valley

Average highs run from 34°F on January 1 to 34°F on January 31, and lows from 18°F to 16°F. Normal precipitation for the month is 2.34 in over about 8 wet days.

January day by day

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

Normal daily high and low temperature at Green Valley, in °F, with the record for each date.-40-20020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

January at a glance

Average high
33°F
Average low
16°F
Precipitation
2.34 in
Snowfall
5.5 in
Record high
70°FJan 31, 1989
Record low
-25°FJan 17, 1977
Chance of a freeze
100%
Daylight
9 h 21 min to 10 h 07 min
Cloud cover
67%
Humidity
86%
Dew point
20°F
Wind
11.9 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 134°F18°F54°F 2005-16°F 201822%11%
Jan 233°F18°F65°F 2004-16°F 197922%11%
Jan 333°F18°F65°F 2023-14°F 197922%11%
Jan 433°F18°F65°F 1997-15°F 199922%11%
Jan 533°F18°F56°F 1955-20°F 199922%11%
Jan 633°F17°F65°F 2008-14°F 197923%12%
Jan 733°F17°F67°F 2008-15°F 196823%12%
Jan 833°F17°F62°F 2026-13°F 197023%12%
Jan 933°F17°F60°F 2026-13°F 196223%12%
Jan 1033°F17°F59°F 1975-18°F 198223%12%
Jan 1133°F16°F60°F 2018-17°F 197723%12%
Jan 1233°F16°F64°F 2005-18°F 197423%12%
Jan 1333°F16°F54°F 1960-7°F 195723%12%
Jan 1433°F16°F58°F 1952-19°F 197923%12%
Jan 1533°F16°F63°F 1949-22°F 197923%12%
Jan 1633°F16°F62°F 1990-21°F 200923%12%
Jan 1733°F16°F60°F 1952-25°F 197723%12%
Jan 1833°F16°F59°F 1951-18°F 199423%12%
Jan 1933°F15°F63°F 1952-21°F 199423%12%
Jan 2033°F15°F53°F 1954-22°F 198524%12%
Jan 2133°F15°F62°F 1957-18°F 197024%12%
Jan 2233°F15°F62°F 1967-10°F 197024%12%
Jan 2333°F15°F65°F 1967-17°F 196324%12%
Jan 2433°F15°F68°F 1950-12°F 196324%12%
Jan 2533°F15°F68°F 1950-8°F 196124%12%
Jan 2633°F15°F60°F 2002-10°F 201924%12%
Jan 2734°F15°F63°F 1944-14°F 195524%12%
Jan 2834°F15°F61°F 2002-20°F 196324%11%
Jan 2934°F16°F64°F 2013-14°F 196624%11%
Jan 3034°F16°F60°F 2012-20°F 201923%11%
Jan 3134°F16°F70°F 1989-19°F 201923%11%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Green Valley, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CST).

January 1
sunrise 7:22 AM, sunset 4:43 PM
January 31
sunrise 7:09 AM, sunset 5:16 PM

Every day of January: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00115413 (Mason City 4SE), public domain. Records: NOAA GHCN-Daily, station USW00014842, 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.