December weather in Ryan, IA
The average temperature in Ryan in December is 23.9°F (15.6°F–32.2°F). Average precipitation: 1.56 inches.
December is a winter month in Ryan, and is cooler than the annual average of 46.5°F. Daily temperatures swing about 16.6°F between overnight low and afternoon high. Daylight averages about 8h 55m. For travel, December is cold.
Avg High
32.2°F
Avg Low
15.6°F
Precipitation
1.56 in
Daylight
8h 55m
December records in Ryan
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 48.9°F (2017) | 9.0°F (2014) | 0.35 in (2015) |
| December 2 | 57.9°F (2009) | 1.0°F (2005) | 1.48 in (2007) |
| December 3 | 57.9°F (2012) | 0.0°F (2005) | 0.52 in (2011) |
| December 4 | 66.0°F (2012) | 3.9°F (2008) | 1.03 in (2011) |
| December 5 | 63.0°F (2017) | -11.9°F (2005) | 0.41 in (2016) |
| December 6 | 52.0°F (2019) | -9.9°F (2005) | 0.00 in (2005) |
| December 7 | 46.9°F (2012) | -14.1°F (2005) | 0.24 in (2007) |
| December 8 | 43.0°F (2015) | -17.0°F (2005) | 0.03 in (2005) |
| December 9 | 44.1°F (2015) | -2.9°F (2005) | 0.90 in (2009) |
| December 10 | 48.9°F (2015) | -9.9°F (2013) | 0.15 in (2012) |
| December 11 | 54.0°F (2015) | -8.0°F (2009) | 0.49 in (2007) |
| December 12 | 45.0°F (2015) | -5.1°F (2009) | 0.57 in (2007) |
| December 13 | 57.9°F (2015) | -7.1°F (2013) | 0.62 in (2015) |
| December 14 | 60.1°F (2015) | -8.0°F (2010) | 2.06 in (2015) |
| December 15 | 54.0°F (2006) | -8.0°F (2010) | 0.30 in (2012) |
| December 16 | 48.9°F (2018) | -7.1°F (2009) | 0.40 in (2014) |
| December 17 | 54.0°F (2006) | -6.0°F (2009) | 0.19 in (2008) |
| December 18 | 42.1°F (2018) | -15.0°F (2016) | 0.05 in (2016) |
| December 19 | 50.0°F (2011) | -16.1°F (2016) | 0.67 in (2008) |
| December 20 | 50.0°F (2018) | -11.0°F (2010) | 0.70 in (2012) |
| December 21 | 46.9°F (2015) | -9.9°F (2008) | 1.47 in (2006) |
| December 22 | 48.0°F (2019) | -11.9°F (2008) | 0.31 in (2013) |
| December 23 | 53.1°F (2019) | -11.9°F (2008) | 0.67 in (2007) |
| December 24 | 53.1°F (2015) | -16.1°F (2013) | 0.43 in (2010) |
| December 25 | 52.0°F (2019) | -18.9°F (2013) | 1.02 in (2009) |
| December 26 | 57.9°F (2019) | -5.1°F (2008) | 0.73 in (2016) |
| December 27 | 50.0°F (2008) | -13.0°F (2017) | 0.71 in (2018) |
| December 28 | 48.0°F (2018) | -9.9°F (2017) | 0.34 in (2018) |
| December 29 | 55.0°F (2019) | -0.9°F (2009) | 1.20 in (2015) |
| December 30 | 53.1°F (2019) | -11.9°F (2013) | 0.16 in (2017) |
| December 31 | 46.0°F (2006) | -17.0°F (2013) | 0.46 in (2006) |