Ontario, OR
Oregon · Records since 1945–2026
☀️ 96°F
Feels like 90°
Currently in Ontario
As of 6:00 PM MDT
Records for July 28
🔥 Record High
109°F
July 28, 2022
+12° from 97° normal❄ Record Low
43°F
July 28, 1948
-20° from 63° normal
🌞 Normal high: 97°F 🌑 Normal low: 63°F 1991–2020 normals
All-Time Records — Ontario
113°F
Hottest Day Ever
Jul 12, 1967
-25°F
Coldest Day Ever
Jan 22, 1962
1.59"
Wettest Day Ever
Sep 14, 1959
10.0"
Most Snow in One Day
Jan 8, 1993
Top 10 Record Highs — July 28
| # | Temp | Date |
|---|---|---|
| 🏆 | 109°F | July 28, 2022 |
| 2 | 107°F | July 28, 1968 |
| 3 | 106°F | July 28, 1971 |
| 4 | 106°F | July 28, 1958 |
| 5 | 105°F | July 28, 1974 |
| 6 | 105°F | July 28, 1973 |
| 7 | 105°F | July 28, 1972 |
| 8 | 105°F | July 28, 1960 |
| 9 | 103°F | July 28, 2007 |
| 10 | 103°F | July 28, 1995 |
Top 5 Record Lows — July 28
| # | Temp | Date |
|---|---|---|
| 🥶 | 43°F | July 28, 1948 |
| 2 | 44°F | July 28, 2015 |
| 3 | 48°F | July 28, 1986 |
| 4 | 48°F | July 28, 1963 |
| 5 | 50°F | July 28, 2005 |
Heat Wave Summary — Ontario
threshold: 102°F (90th percentile of historical Jun–Aug highs)5.2
Avg heat wave length
days (historical)
107°
Avg peak temp
during heat waves
6
Dangerous nights 2026
Overnights ≥ 70°F
0
Heat waves 2026
so far
2026 Daily High Temperature vs Normal
Year to date
Above normal
Below normal
119 of 207 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1945–202636
2026 so far
64
Avg/year 1970–2025
69
Avg/year (last 10 complete)
94
Most in a year (1967)
Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Ontario
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Jul 22, 1971 – Aug 14, 1971 | 24 | 110°F (Aug 8) | 106°F | 62°F |
| 2 | Jun 15, 1961 – Jun 26, 1961 | 12 | 108°F (Jun 17) | 105°F | 60°F |
| 3 | Aug 10, 1967 – Aug 20, 1967 | 11 | 109°F (Aug 19) | 106°F | 55°F |
| 4 | Jul 13, 1960 – Jul 22, 1960 | 10 | 112°F (Jul 19) | 107°F | 62°F |
| 5 | Jul 17, 1956 – Jul 26, 1956 | 10 | 107°F (Jul 23) | 104°F | 59°F |
| 6 | Jun 28, 2021 – Jul 7, 2021 | 10 | 107°F (Jun 30) | 105°F | 68°F |
| 7 | Jul 15, 1959 – Jul 23, 1959 | 9 | 111°F (Jul 21) | 107°F | 59°F |
| 8 | Jul 3, 1968 – Jul 11, 1968 | 9 | 108°F (Jul 4) | 105°F | 61°F |
| 9 | Jul 16, 2024 – Jul 24, 2024 | 9 | 108°F (Jul 22) | 105°F | 68°F |
| 10 | Jul 25, 1973 – Aug 2, 1973 | 9 | 107°F (Aug 2) | 105°F | 60°F |
Heat Waves Per Year
Warm Summer Nights (Jun–Aug)
Nights where the overnight low exceeded the 1991–2020 normal low
31
2026 so far
above-normal nights
29.1
Avg / summer
1970–2020
72
Most in a summer
2021
Above-Normal Summer Nights Per Year
Average June–August Low by Decade
Overnight lows · complete decades only
Precipitation
Actual vs. 1991–2020 full-month and full-season normals
6.15"
2026 YTD
Normal: 6.13"
+0.02"
0.21"
July so far
July normal: 0.26"
-0.05"
1.36"
Summer so far
Summer normal: 1.10"
+0.26"
1
2026 heavy rain days
Days with ≥ 1.0"
Monthly Precipitation — Last 24 Months
Blue = actual · dashed line = monthly normal
Annual Precipitation Per Year (1970–2026)
Blue = above average · tan = below average · gold = 2026 (partial)
Heavy Rain Days Per Year (≥ 1.0")
Compare year-to-year changes in days with heavy rainfall (≥ 1.0")