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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

Salinas, CA Temperature Range by Month

Average monthly highs and lows. The shaded band shows the typical daily temperature range.

30°40°50°60°70°80°JFMAMJJASOND
Avg high Avg low

Salinas, CA Monthly Precipitation

Average rainfall and snowfall per month, in inches.

0"3.9"7.7"JFMAMJJASOND0.1"0"
Rain (in) Snow (in)

Salinas, CA Daily Temperature Calendar

Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.

151015202531JanFebMarAprMayJunJulAugSepOctNovDec
Cooler
Hotter
20°40°60°80°100°

Best Time to Visit Salinas, CA

Most pleasant months in Salinas, CA: June, July, August.

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal

Browse Weather History

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

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