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Jurupa Valley, CA Weather on May 15

May 15th in Jurupa Valley, 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 15th was in 2014 (82°F average), while the coldest was 2011 (58°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 4% of May 15th dates historically. Temperatures on this date have remained relatively stable over the past several decades.

By Weather On This Day|
Avg High
80°F
Avg Low
54°F
Record High
103°F
2014
Record Low
47°F
1998
Jurupa Valley, CA on May 15 — Temperature History40°F60°F80°F100°F120°F19801990200020102020HighLow

What to Expect on May 15

Planning for May 15th in Jurupa Valley, CA? Stay hydrated and seek shade during peak afternoon hours.

May 15 Weather Records for Jurupa Valley

  • The all-time record high for May 15th in Jurupa Valley, CA is 103°F, set in 2014.
  • The coldest May 15th on record dropped to 47°F in 1998.
  • Temperatures have reached 90°F or higher on May 15th in 7 of the last 55 years.

Frequently Asked Questions

What was the warmest May 15 ever in Jurupa Valley?

The warmest May 15 in Jurupa Valley, CA reached 103°F in 2014. That is 23°F above the long-term average high of 80°F.

What was the coldest May 15 ever in Jurupa Valley?

The coldest May 15 in Jurupa Valley, CA dropped to 47°F in 1998. That is 7°F below the long-term average low of 54°F.

What is the average temperature on May 15 in Jurupa Valley?

On May 15, Jurupa Valley averages a high of 80°F and a low of 54°F based on 55 years of NOAA weather observations from RIVERSIDE MUNI AP.

How many years of weather data are available for May 15 in Jurupa Valley?

We have 55 years of weather records for May 15 in Jurupa Valley, CA, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.

May 15 Weather History in Jurupa Valley

YearHighLowPrecipSnow
202581°F53°F0"--
202472°F55°F0"--
202384°F57°F0"--
202291°F61°F0"--
202172°F57°F0"--
202083°F55°F0"--
201974°F57°F0"--
201877°F52°F0"--
201768°F51°F0"--
201670°F60°F0"--
201566°F51°F0.3"--
2014103°F62°F0"--
201382°F56°F0"--
201284°F53°F0"--
201166°F50°F0.1"--
201085°F53°F0"--
200987°F57°F0"--
2008100°F53°F0"--
200777°F54°F0"--
200684°F57°F0"--
200590°F54°F0"--
200489°F54°F0"--
200376°F50°F0"--
200277°F54°F0"--
200181°F52°F0"--
200077°F50°F0"--
199970°F53°F0"--
199874°F47°F0"--
199796°F60°F0"--
199685°F61°F0"--
199571°F48°F0"--
199465°F58°F0"--
199390°F62°F0"--
199279°F60°F0"--
199188°F50°F0"--
199075°F57°F0"--
198965°F56°F0"--
198888°F57°F0"--
198780°F61°F0"--
198673°F54°F0"--
198586°F49°F0"--
198476°F52°F0"--
198380°F50°F0"--
198281°F49°F0"--
198174°F56°F0"--
198070°F53°F0"--
197989°F50°F0"--
197883°F58°F0"--
197768°F55°F0"--
197689°F52°F0"--
197576°F54°F0"--
197473°F56°F0"--
197381°F53°F0"--
197292°F54°F0"--
197180°F51°F0"--

Based on 55 years of data from NOAA station: RIVERSIDE MUNI AP

Monthly Climate Averages

Historical temperature and precipitation averages for Jurupa Valley, CA, based on 55+ years of weather data.

Warmest MonthAugustAvg High: 95°F / Low: 63°F
Coldest MonthDecemberAvg High: 68°F / Low: 42°F
Jan
68°/ 43°
💧 8.5"
Feb
69°/ 44°
💧 9.5"
Mar
72°/ 46°
💧 7.4"
Apr
76°/ 49°
💧 4.6"
May
81°/ 54°
💧 3.1"
Jun
88°/ 58°
💧 3.2"
Jul
94°/ 63°
💧 3.0"
Aug
95°/ 63°
💧 7.6"
Sep
91°/ 60°
💧 5.4"
Oct
83°/ 54°
💧 4.7"
Nov
74°/ 46°
💧 6.5"
Dec
68°/ 42°
💧 6.7"

Temperatures in Fahrenheit. Precipitation and snowfall in inches.

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