Weather on December 18

Arvada, CO

55 Years of Data

Avg High
46°F
Avg Low
17°F
Warmest
1980
55°F avg
Coldest
2016
-7°F avg

About This Date

December 18th in Arvada, CO typically brings chilly winter weather, with average highs around 46°F and lows near 17°F — a 29°F daily swing. Over 55 years of records, the warmest December 18th was in 1980 (55°F average), while the coldest was 2016 (-7°F) — a 62°F range across recorded history. Precipitation has occurred on 7% of recorded December 18th dates, with snow falling 5% of the time (heaviest snowfall: 8"). The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.

The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.

Planning for December 18th in Arvada, CO? Bring layers as temperatures can vary throughout the day.

Cooling Trend
0.6°F per decade on this date
YearHighLowAvgPrecipSnow
202572°23°47°
202456°24°40°
202361°19°40°
202239°10°25°
202143°22°
202050°26°38°
201945°14°29°
201861°21°41°
201740°14°27°
2016coldest-20°-7°
201526°14°
201440°25°32°
201365°34°49°
201251°27°39°
201159°30°45°
201038°14°26°
200933°16°24°
200837°21°29°
200744°22°33°
200630°14°22°
200534°17°
200444°26°35°
200350°19°35°
200236°14°25°
200161°27°44°
200062°17°40°
199942°25°33°
199869°31°50°
199759°25°42°
199610°-15°-2°
199530°20°25°0.2"1"
199455°29°42°
199343°12°27°
199230°15°
199148°14°31°
199040°20°30°
198925°-8°0.61"4"
198850°25°37°
198740°15°27°
198633°20°
198546°18°32°
198434°21°
198316°0.05"
198243°15°29°
198139°24°
1980warmest75°36°55°
197967°38°52°
197857°31°44°
197757°19°38°
197660°32°46°
197551°27°
197447°20°33°
197349°15°32°1.4"8"
197255°31°43°
197159°23°41°
55 years of data from WATERTON NORTH COLORADO

Browse Weather History

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