Ontario climate

Ontario Weather in June

NOAA 1991-2020 normals for Ontario Ksrv, 2 km from Ontario

Average highs run from 78°F on June 1 to 88°F on June 30, and lows from 51°F to 57°F. Normal precipitation for the month is 0.68 in over about 4 wet days.

June day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Ontario, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

June at a glance

Average high
82°F
Average low
54°F
Precipitation
0.68 in
Record high
109°FJun 28, 2015
Record low
36°FJun 1, 2000
Chance of a freeze
0%
Days of 90°F or more
7.2
Daylight
15 h 16 min to 15 h 27 min
Cloud cover
49%
Humidity
44%
Dew point
43°F
Wind
6.9 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Jun 178°F51°F96°F 200136°F 200021%0%
Jun 278°F51°F99°F 202143°F 200021%0%
Jun 378°F52°F102°F 202141°F 201120%0%
Jun 479°F52°F98°F 202142°F 201120%0%
Jun 579°F52°F101°F 201645°F 200819%0%
Jun 679°F52°F100°F 201640°F 201219%0%
Jun 779°F52°F97°F 201338°F 201218%0%
Jun 880°F53°F99°F 201537°F 200518%0%
Jun 980°F53°F99°F 201539°F 200517%0%
Jun 1080°F53°F97°F 201540°F 199917%0%
Jun 1180°F53°F97°F 201540°F 202616%0%
Jun 1281°F53°F94°F 202040°F 201816%0%
Jun 1381°F54°F98°F 202138°F 200515%0%
Jun 1481°F54°F98°F 200242°F 200115%0%
Jun 1582°F54°F98°F 200239°F 202214%0%
Jun 1682°F54°F100°F 202642°F 201614%0%
Jun 1782°F54°F98°F 200340°F 201013%0%
Jun 1883°F55°F99°F 202140°F 201013%0%
Jun 1983°F55°F100°F 202142°F 202413%0%
Jun 2084°F55°F98°F 201740°F 202312%0%
Jun 2184°F55°F99°F 200540°F 202312%0%
Jun 2284°F55°F102°F 202143°F 200911%0%
Jun 2385°F56°F99°F 202442°F 202511%0%
Jun 2485°F56°F101°F 202144°F 202510%0%
Jun 2586°F56°F101°F 200246°F 201610%0%
Jun 2686°F56°F102°F 200245°F 200710%0%
Jun 2787°F57°F104°F 201540°F 19989%0%
Jun 2887°F57°F109°F 201544°F 19989%0%
Jun 2988°F57°F106°F 201550°F 20059%0%
Jun 3088°F57°F107°F 202150°F 20268%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Ontario, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

June 1
sunrise 6:08 AM, sunset 9:24 PM
June 30
sunrise 6:08 AM, sunset 9:35 PM

Every day of June: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00356294 (Ontario Ksrv), public domain. Records: NOAA GHCN-Daily, station USW00024162, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.