Weather on December 18

Nampa, ID

55 Years of Data

Avg High
39°F
Avg Low
21°F
Warmest
1999
42°F avg
Coldest
1985
10°F avg

About This Date

December 18th in Nampa, ID typically brings cold winter weather, with average highs around 39°F and lows near 21°F. Over 44 years of records, the warmest December 18th was in 1999 (42°F average), while the coldest was 1985 (10°F) — a 32°F range across recorded history. Precipitation has occurred on 18% of recorded December 18th dates, with snow falling 5% of the time.

Planning for December 18th in Nampa, ID? Bundle up with warm layers and protect extremities from the cold.

YearHighLowAvgPrecipSnow
201447°29°38°
201322°18°20°
201248°27°37°
201141°16°28°
201038°21°29°0.05"0.3"
200942°31°36°0.05"
200824°15°
200747°33°40°
200636°13°24°
200527°16°
200438°28°33°
200345°27°36°
200245°23°34°
200143°23°33°
200043°19°31°
1999warmest48°35°42°0.05"
199839°19°29°
199745°32°38°0.13"
199634°16°25°
199543°23°33°
199446°36°41°
199339°31°35°
199235°18°26°0.08"1"
199140°17°28°
199045°17°31°
198947°14°30°
198846°15°31°
198735°20°27°
198628°22°25°
1985coldest20°10°
198424°14°
198337°24°31°
198250°27°38°
198145°26°35°
198027°17°22°
197945°16°30°
197834°26°30°0.3"
197748°30°39°0.36"
197637°12°25°
197527°17°22°
197445°25°35°
197350°32°41°
197238°29°33°0.03"
197137°18°27°
44 years of data from NAMPA SUGAR FACTORY

Browse Weather History

Weather data provided by NOAA Climate Data Online. Not for critical planning.

December 18th Weather in Nampa, ID - 55 Years of History