Portland, OR

Oregon · Records since 1940–2026

☀️ 82°F
Currently in Portland
As of 5:00 PM PDT

Records for July 28

🔥 Record High

106°F

July 28, 2009

+22° from 84° normal

❄ Record Low

50°F

July 28, 1963

-10° from 60° normal
🌞 Normal high: 84°F 🌑 Normal low: 60°F 1991–2020 normals

All-Time Records — Portland

🔥
116°F
Hottest Day Ever
Jun 28, 2021
-3°F
Coldest Day Ever
Feb 2, 1950
🌧
2.69"
Wettest Day Ever
Nov 19, 1996
14.4"
Most Snow in One Day
Jan 21, 1943

Top 10 Record Highs — July 28

# Temp Date
🏆 106°F July 28, 2009
2 101°F July 28, 1998
3 99°F July 28, 1973
4 98°F July 28, 2003
5 98°F July 28, 1985
6 96°F July 28, 2022
7 95°F July 28, 1960
8 95°F July 28, 1958
9 94°F July 28, 2021
10 94°F July 28, 2016

Top 5 Record Lows — July 28

# Temp Date
🥶 50°F July 28, 1963
2 51°F July 28, 1975
3 51°F July 28, 1959
4 51°F July 28, 1956
5 51°F July 28, 1954
About this data — Records are sourced from the NOAA Threadex dataset via RCC ACIS, a quality-controlled record for long-term climate stations. Threadex adjusts for station relocations and observation-time changes, making records comparable across all years since 1940–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Portland

threshold: 90°F (90th percentile of historical Jun–Aug highs)
3.9
Avg heat wave length
days (historical)
99°
Avg peak temp
during heat waves
0
Dangerous nights 2026
Overnights ≥ 70°F
2
Heat waves 2026
so far

2026 Daily High Temperature vs Normal

Year to date
Above normal Below normal

109 of 207 days with data were above the 1991–2020 normal high for their date.


Days ≥ 90°F Per Year

1941–2026
9
2026 so far
13
Avg/year 1970–2025
22
Avg/year (last 10 complete)
31
Most in a year (2018)

Average Daily High by Decade

Full year · complete decades only


Longest Heat Waves — Portland

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 25, 2009 – Aug 3, 2009 10 106°F (Jul 28) 97°F 65°F
2 Jul 22, 2018 – Jul 30, 2018 9 99°F (Jul 29) 94°F 62°F
3 Jul 24, 2022 – Jul 31, 2022 8 102°F (Jul 26) 98°F 67°F
4 Aug 12, 1967 – Aug 19, 1967 8 98°F (Aug 15) 94°F 59°F
5 Jun 29, 2015 – Jul 6, 2015 8 97°F (Jul 2) 94°F 63°F
6 Aug 3, 1972 – Aug 9, 1972 7 104°F (Aug 7) 96°F 61°F
7 Jul 4, 2024 – Jul 10, 2024 7 104°F (Jul 9) 98°F 64°F
8 Sep 4, 1944 – Sep 10, 1944 7 101°F (Sep 5) 94°F 55°F
9 Aug 12, 2023 – Aug 17, 2023 6 108°F (Aug 14) 100°F 68°F
10 Aug 6, 1981 – Aug 11, 1981 6 107°F (Aug 8) 103°F 64°F

Heat Waves Per Year


Warm Summer Nights (Jun–Aug)

Nights where the overnight low exceeded the 1991–2020 normal low

30
2026 so far
above-normal nights
34.5
Avg / summer
1970–2020
67
Most in a summer
2022

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

17.16"
2026 YTD
Normal: 20.17"
-3.01"
0.16"
July so far
July normal: 0.51"
-0.35"
1.35"
Summer so far
Summer normal: 2.68"
-1.33"
3
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")