Weather on May 17

Fontana, CA

55 Years of Data

Avg High
80°F
Avg Low
54°F
Warmest
2008
83°F avg
Coldest
2011
57°F avg

About This Date

May 17th in Fontana, CA typically brings warm spring weather, with average highs around 80°F and lows near 54°F — a 26°F daily swing. Over 55 years of records, the warmest May 17th was in 2008 (83°F average), while the coldest was 2011 (57°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 7% of May 17th dates historically. The last decade has been 3.1°F cooler on this date compared to 20-30 years ago.

The last decade has been 3.1°F cooler on this date compared to 20-30 years ago.

Planning for May 17th in Fontana, CA? Stay hydrated and seek shade during peak afternoon hours.

YearHighLowAvgPrecipSnow
202565°56°60°0.03"
202471°55°63°
202385°56°70°
202278°56°67°
202166°55°61°
202084°60°72°
201976°55°65°
201876°53°64°
201762°52°57°
201678°59°69°
201574°53°63°
201491°64°78°
201372°60°66°
201287°59°73°
2011coldest65°50°57°0.1"
201065°54°59°0.08"
200993°62°78°
2008warmest102°65°83°
200781°55°68°
200688°45°66°
200575°55°65°
200476°58°67°
200381°59°70°
200281°55°68°
200186°56°71°
200075°48°62°
199987°52°69°
199874°47°60°
199790°61°75°
199684°60°72°
199574°52°63°
199470°52°61°0.38"
199383°59°71°
199286°56°71°
199179°56°67°
199080°51°66°
198974°54°64°
198874°58°66°
198782°62°72°
198696°51°74°
198577°51°64°
198486°47°66°
198384°50°67°
198290°52°71°
198183°42°62°
198082°42°62°
197982°50°66°
197887°58°72°
197774°48°61°
197692°50°71°
197580°54°67°
197473°52°62°
197380°54°67°
197278°54°66°
197182°55°69°
55 years of data from FONTANA KAISER

Browse Weather History

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