Weather on December 21

Salinas, CA

55 Years of Data

Avg High
61°F
Avg Low
41°F
Warmest
2025
61°F avg
Coldest
1990
35°F avg

About This Date

December 21st in Salinas, CA typically brings mild winter weather, with average highs around 61°F and lows near 41°F. Over 55 years of records, the warmest December 21st was in 2025 (61°F average), while the coldest was 1990 (35°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 25% of December 21st dates historically, with the wettest December 21st recording 2.77" of rain. The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.

The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.

Planning for December 21st in Salinas, CA? Great weather for outdoor activities.

Warming Trend
0.3°F per decade on this date
YearHighLowAvgPrecipSnow
2025warmest66°56°61°
202465°44°54°
202359°47°53°0.05"
202265°38°51°
202165°42°53°
202071°42°57°
201962°44°53°
201866°47°56°
201758°30°44°
201666°38°52°
201558°48°53°0.2"
201467°51°59°
201364°33°49°
201257°35°46°
201165°33°49°
201057°43°50°
200961°48°54°0.18"
200854°38°46°0.18"
200754°32°43°
200651°35°43°0.1"
200563°48°55°
200467°36°51°
200369°46°58°0.13"
200256°48°52°0.1"
200156°41°48°2.06"
200060°37°49°
199973°41°57°
199849°27°38°
199758°36°47°
199651°44°48°2.77"
199560°38°49°
199472°40°56°
199361°35°48°
199261°38°49°
199165°39°52°
1990coldest42°28°35°
198964°35°50°
198857°44°51°0.79"
198763°39°51°
198666°39°53°
198570°44°57°
198459°35°47°
198352°37°44°
198259°49°54°0.81"
198160°49°54°
198064°43°53°
197962°47°54°1.14"
197855°35°45°
197766°40°53°
197664°36°50°
197563°37°50°
197464°40°52°
197359°46°53°1.17"
197267°52°59°
197161°36°48°1.42"
55 years of data from SALINAS #2

Browse Weather History

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

December 21st Weather in Salinas, CA - 55 Years of History