Weather on March 20

El Cajon, CA

55 Years of Data

Avg High
73°F
Avg Low
49°F
Warmest
2026
82°F avg
Coldest
1982
52°F avg

About This Date

March 20th in El Cajon, CA typically brings pleasant spring weather, with average highs around 73°F and lows near 49°F. Over 56 years of records, the warmest March 20th was in 2026 (82°F average), while the coldest was 1982 (52°F). Rain or other precipitation has occurred on about 13% of March 20th dates historically.

The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.

Planning for March 20th in El Cajon, CA? Great weather for outdoor activities.

Warming Trend
0.8°F per decade on this date
YearHighLowAvgPrecipSnow
2026warmest98°66°82°
202576°44°60°
202472°47°59°
202362°54°58°0.15"
202266°51°59°0.64"
202168°52°60°
202064°47°55°
201967°51°59°0.25"
201876°46°61°
201771°57°64°
201678°52°65°
201581°54°67°
201476°47°61°
201374°53°63°
201271°39°55°
201160°51°56°
201081°47°64°
200978°50°64°
200868°50°59°
200764°52°58°
200660°47°53°
200566°50°58°0.38"
200483°53°68°
200366°47°56°
200284°42°63°
200187°51°69°
200075°53°64°
199974°42°58°
199877°49°63°
199797°50°73°
199680°51°66°
199569°57°63°
199470°56°63°
199376°56°66°
199267°47°57°
199160°52°56°2.95"
199087°52°69°
198980°52°66°
198889°40°64°
198766°41°54°
198681°43°62°
198577°46°62°
198479°46°62°
198364°43°53°
1982coldest67°38°52°
198169°53°61°
198073°44°59°
197959°47°53°1.07"
197869°54°61°
197768°38°53°
197679°43°61°
197573°49°61°
197464°52°58°
197359°49°54°1.4"
197271°55°63°
197173°40°56°
56 years of data from GILLESPIE FLD

Browse Weather History

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