Weather on September 17

El Cajon, CA

55 Years of Data

Avg High
84°F
Avg Low
62°F
Warmest
2014
88°F avg
Coldest
1988
65°F avg

About This Date

September 17th in El Cajon, CA typically brings warm fall weather, with average highs around 84°F and lows near 62°F. Over 53 years of records, the warmest September 17th was in 2014 (88°F average), while the coldest was 1988 (65°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 8% of September 17th dates historically. 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 September 17th in El Cajon, CA? Stay hydrated and seek shade during peak afternoon hours.

YearHighLowAvgPrecipSnow
202588°71°79°0.08"
202474°56°65°
202371°65°68°0.13"
202279°60°69°
202181°62°71°
2020102°61°81°
201986°62°74°
201891°61°76°
201780°66°73°
201685°57°71°
201584°63°73°
2014warmest99°77°88°
201381°65°73°
201286°65°75°
201175°61°68°
201083°57°70°
200988°61°74°
200888°63°75°
200774°60°67°
200691°54°72°
200575°59°67°
200487°65°76°
200383°66°74°
200279°56°67°
200183°61°72°
2000100°66°83°
199979°60°69°
199876°63°69°
199589°64°77°
199483°63°73°
199373°58°65°
199294°65°79°
199158°
199080°62°71°
198965°78°71°0.23"
1988coldest74°57°65°
198782°60°71°
198684°54°69°
198578°59°69°
198497°71°84°
198394°63°78°
198278°56°67°0.1"
198195°62°79°
198097°62°79°
197999°71°85°
197875°62°69°
197779°53°66°
197677°60°69°
197595°67°81°
197482°60°71°
197379°58°68°
197282°60°71°
197178°69°74°
53 years of data from GILLESPIE FLD

Browse Weather History

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