Based on the weather in Nashua, New Hampshire, United States Of America as of February 14, 2016 6:00pm local time

Why? Because it's cold enough to freeze the brass off a bald monkey
Current Conditions
Temp: 6.8°F-14°C
Wind: 6.2 MPH9.9 KPH
Precipitation: None

Next 2 hours: Yes

Next 4 hours: Yes

Next 8 hours: Yes