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Weather on March 22

San Marcos, CA

55 Years of Data

Avg High
71°F
Avg Low
48°F
Warmest
2026
73°F avg
Coldest
1973
51°F avg

About This Date

March 22nd in San Marcos, CA typically brings pleasant spring weather, with average highs around 71°F and lows near 48°F. Over 56 years of records, the warmest March 22nd was in 2026 (73°F average), while the coldest was 1973 (51°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 23% of March 22nd dates historically, with the wettest March 22nd recording 1.45" of rain. The last decade has been 2.7°F warmer on this date compared to 20-30 years ago.

The last decade has been 2.7°F warmer on this date compared to 20-30 years ago.

Planning for March 22nd in San Marcos, CA? Great weather for outdoor activities.

Warming Trend
1.0°F per decade on this date
YearHighLowAvgPrecipSnow
2026warmest90°57°73°
202579°48°63°
202477°49°63°
202362°48°55°1.45"
202286°51°69°
202171°43°57°
202073°48°61°
201966°48°57°0.03"
201868°63°65°0.05"
201767°59°63°0.1"
201667°55°61°
201575°55°65°
201465°56°60°
201373°55°64°
201277°47°62°
201162°45°53°0.15"
201067°52°59°
200959°48°54°0.28"
200875°50°63°
200770°43°56°
200661°44°52°
200571°48°60°
200465°53°59°0.03"
200378°45°61°
200271°43°57°
200166°53°60°
200071°43°57°
199967°41°54°
199880°48°64°
199775°48°62°
199677°50°64°
199564°44°54°
199464°55°60°
199377°53°65°
199263°47°55°0.23"
199164°41°53°
199081°50°65°
198981°46°63°
198876°48°62°
198759°43°51°0.81"
198684°47°65°
198569°40°54°
198475°49°62°
198364°46°55°
198272°40°56°
198171°45°58°
198065°48°56°0.56"
197965°45°55°
197865°55°60°0.58"
197774°42°58°
197684°42°63°
197560°48°54°0.81"
197462°53°58°
1973coldest58°44°51°1.09"
197269°51°60°
197173°43°58°
56 years of data from ESCONDIDO #2

San Marcos, 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°90°JFMAMJJASOND
Avg high Avg low

San Marcos, CA Monthly Precipitation

Average rainfall per month, in inches.

0"5"10"JFMAMJJASOND
Rain (in)

San Marcos, 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 San Marcos, CA

Most pleasant months in San Marcos, CA: June.

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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