Weather on June 23

Rialto, CA

55 Years of Data

Avg High
90°F
Avg Low
60°F
Warmest
1987
89°F avg
Coldest
2003
59°F avg

About This Date

June 23rd in Rialto, CA typically brings hot summer weather, with average highs around 90°F and lows near 60°F — a 30°F daily swing. Over 48 years of records, the warmest June 23rd was in 1987 (89°F average), while the coldest was 2003 (59°F) — a 30°F range across recorded history. This date has historically been dry, with little recorded precipitation.

Planning for June 23rd in Rialto, CA? Stay hydrated and seek shade during peak afternoon hours.

Cooling Trend
1.1°F per decade on this date
YearHighLowAvgPrecipSnow
202582°59°71°
201793°61°77°
201689°63°76°
201592°65°78°
201485°57°71°
201376°55°65°
201282°55°69°
201192°63°77°
201085°57°71°
200984°55°70°
200892°68°80°
200789°61°75°
200695°63°79°
200591°56°73°
200494°55°74°
2003coldest65°54°59°
200294°55°74°
200194°64°79°
200087°59°73°
199990°59°74°
199880°51°66°
199783°54°68°
199685°52°68°
199598°68°83°
1994103°63°83°
199398°57°78°
199292°69°80°
199174°50°62°
199099°58°78°
198981°60°70°
198886°59°73°
1987warmest86°91°89°
198688°59°73°
198594°60°77°
1984100°58°79°
198386°52°69°
198278°59°69°
1981103°64°83°
198090°57°73°
197994°57°75°
1978103°61°82°
197796°60°78°
1976102°62°82°
197586°56°71°
1974103°60°81°
1973104°62°83°
197275°57°66°
1971102°59°81°
48 years of data from DEVORE CALIFORNIA

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