Weather on December 18

Reno, NV

55 Years of Data

Avg High
45°F
Avg Low
23°F
Warmest
2025
50°F avg
Coldest
1984
19°F avg

About This Date

December 18th in Reno, NV typically brings chilly winter weather, with average highs around 45°F and lows near 23°F. Over 55 years of records, the warmest December 18th was in 2025 (50°F average), while the coldest was 1984 (19°F) — a 31°F range across recorded history. Precipitation has occurred on 20% of recorded December 18th dates, with snow falling 13% of the time (heaviest snowfall: 5.6"). Temperatures on this date have remained relatively stable over the past several decades.

Temperatures on this date have remained relatively stable over the past several decades.

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

Warming Trend
0.9°F per decade on this date
YearHighLowAvgPrecipSnow
2025warmest60°39°50°
202453°32°43°
202342°34°38°1.12"
202229°17°23°
202136°20°28°
202044°25°34°
201943°24°33°
201853°34°43°
201749°24°36°
201632°16°24°
201557°35°46°
201450°31°40°
201348°28°38°
201232°20°26°
201151°21°36°
201043°31°37°0.43"
200943°26°34°
200838°22°
200747°34°40°0.13"
200631°10°20°
200542°30°36°2.62"5.5"
200439°26°33°
200344°25°34°
200237°20°28°
200152°28°40°
200044°23°34°
199952°35°43°
199859°27°43°
199740°26°33°0.03"0.2"
199641°24°33°
199538°24°31°
199449°28°38°
199339°26°33°
199231°19°
199152°27°39°0.18"0.7"
199049°20°34°
198952°17°34°
198840°25°32°0.28"1.6"
198741°14°28°0.43"2"
198646°22°34°
198548°17°33°
1984coldest28°10°19°
198350°26°38°
198245°21°33°
198154°31°42°
198058°29°43°
197960°12°36°
197832°26°29°1.22"5.6"
197738°23°30°0.23"2"
197651°10°31°
197545°27°
197441°17°29°
197350°22°36°
197251°22°36°0.1"
197137°23°
55 years of data from RENO WFO

Browse Weather History

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