Olympia, WA

Washington · Records since 1948–2026

🌤️ 68°F
Currently in Olympia
As of 11:15 AM PDT

Records for September 7

🔥 Record High

96°F

September 7, 1981

+21° from 75° normal

❄ Record Low

34°F

September 7, 1992

-14° from 48° normal
🌞 Normal high: 75°F 🌑 Normal low: 48°F 1991–2020 normals

All-Time Records — Olympia

🔥
110°F
Hottest Day Ever
Jun 28, 2021
❄
-8°F
Coldest Day Ever
Jan 1, 1979
🌧
4.82"
Wettest Day Ever
Jan 7, 2009
☃
14.2"
Most Snow in One Day
Jan 24, 1972

Top 10 Record Highs — September 7

# Temp Date
🏆 96°F September 7, 1981
2 90°F September 7, 1993
3 90°F September 7, 1958
4 89°F September 7, 2012
5 87°F September 7, 2014
6 85°F September 7, 2011
7 84°F September 7, 2020
8 84°F September 7, 1949
9 83°F September 7, 2021
10 82°F September 7, 2024

Top 5 Record Lows — September 7

# Temp Date
🥶 34°F September 7, 1992
2 35°F September 7, 1965
3 35°F September 7, 1960
4 38°F September 7, 1999
5 39°F September 7, 1976
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 1948–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Olympia

threshold: 87°F (90th percentile of historical Jun–Aug highs)
4.0
Avg heat wave length
days (historical)
95°
Avg peak temp
during heat waves
0
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

127 of 249 days with data were above the 1991–2020 normal high for their date.

Days ≥ 90°F Per Year

1948–2026
7
2026 so far
7
Avg/year 1970–2025
10
Avg/year (last 10 complete)
18
Most in a year (1967)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Olympia

# Dates Days Peak Avg High Avg Overnight Low
🏆 Aug 6, 1981 – Aug 14, 1981 9 104°F (Aug 9) 96°F 57°F
2 Jul 25, 2009 – Aug 2, 2009 9 104°F (Jul 29) 94°F 58°F
3 Aug 12, 1967 – Aug 20, 1967 9 96°F (Aug 16) 92°F 51°F
4 Jul 22, 2018 – Jul 30, 2018 9 95°F (Jul 29) 91°F 52°F
5 Jul 25, 2022 – Jul 31, 2022 7 99°F (Jul 30) 96°F 57°F
6 Jun 29, 2015 – Jul 5, 2015 7 96°F (Jul 2) 92°F 54°F
7 Jul 22, 1962 – Jul 28, 1962 7 94°F (Jul 23) 91°F 52°F
8 Jul 5, 2024 – Jul 10, 2024 6 100°F (Jul 9) 95°F 53°F
9 Jul 23, 1958 – Jul 28, 1958 6 99°F (Jul 27) 93°F 55°F
10 Jul 31, 2017 – Aug 5, 2017 6 96°F (Aug 3) 90°F 52°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

47
2026 total
above-normal nights
39.0
Avg / summer
1970–2020
66
Most in a summer
1958

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

24.50"
2026 YTD
Normal: 27.77"
-3.27"
0.35"
September so far
September normal: 2.04"
-1.69"
6
2026 heavy rain days
Days with ≥ 1.0"

2026 Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Olympia is 3.27" behind the normal pace

Monthly Precipitation — Last 24 Months

Blue = actual · dashed line = monthly normal

Annual Precipitation Per Year (1948–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1948, annual totals have trended -0.40" per decade, about -3.0" across the record.

Heavy Rain Days Per Year (≥ 1.0")

Compare year-to-year changes in days with heavy rainfall (≥ 1.0")

Month in Review — August 2026

65.4°F

Average temperature · August 2026

35th-warmest month on record

19th-warmest August of 79 on record

+1.1° vs. 64.3° average (1991–2020)
69.1°F
Warmest month ever
July 1958
68.8°F
Warmest August ever
1967
2
Days ≥ 90°F
in August
96°F
Hottest of 2026
Jul 21

Longest 90°F Streak in August

2 consecutive days with highs of at least 90°F (Aug 5–6, 2026, peaking at 90°F)

The longest August streak since 2025 (1 year). The August record is 8 days, set in 1967.

Average August Temperature by Year

1948–2026 · 2026 highlighted · trend +0.46° per decade (warming since 1948)

Precipitation — August 2026

Month total against the 1991–2020 average and every other August on record

0.12"
Total precipitation
August 2026
-0.84"
vs. average
Normal: 0.96" · 12% of normal
11th-driest
August rank
of 79 on record
5.45"
Wettest August ever
1968 · driest 0.00" (1967)

August Precipitation by Year

1948–2026 · 2026 highlighted · trend -0.08" per decade (drier since 1948)

Wettest Augusts on Record

# Year Total
1 1968 5.45"
2 1977 4.17"
3 1975 3.97"
4 2004 3.93"
5 1962 3.17"
6 2015 2.84"
7 1976 2.71"
8 1997 2.45"
9 1991 2.31"
10 2001 2.28"

Driest Augusts on Record

# Year Total
1 1998 0.00"
2 1967 0.00"
3 2021 0.01"
4 1986 0.01"
5 1955 0.02"
6 2012 0.04"
7 2022 0.05"
8 1974 0.07"
9 2002 0.10"
10 2017 0.11"

Warmest Augusts on Record

# Year Avg Temp
1 1967 68.8°F
2 2023 67.7°F
3 2022 67.5°F
4 1981 67.4°F
5 2017 67.3°F
6 2025 66.9°F
7 2014 66.8°F
8 2004 66.6°F
9 1986 66.4°F
10 1958 66.3°F

Warmest Months on Record (Any Month)

# Month Avg Temp
1 July 1958 69.1°F
2 August 1967 68.8°F
3 July 2015 68.1°F
4 August 2023 67.7°F
5 July 2024 67.6°F
6 August 2022 67.5°F
7 July 1985 67.4°F
8 August 1981 67.4°F
9 August 2017 67.3°F
10 August 2025 66.9°F

Nearby Stations — August 2026

How the same month ranked at the closest reporting stations

Station Avg Temp August Rank
Olympia, WA 65.4°F 19th of 79
Seattle Tacoma, WA 67.7°F 20th of 82
Seattle City, WA 68.6°F 14th of 132
Astoria, OR 62.6°F 37th of 138
Vancouver, WA 70.2°F 16th of 130
About this data. Monthly averages are the mean of daily average temperatures, computed from NOAA Threadex records via RCC ACIS. Months missing more than three days of observations are excluded from the rankings, so the in-progress month never appears. Rankings cover 942 complete months on record. Precipitation totals sum the daily reports for the month, with trace amounts counted as zero. A month missing any day of precipitation data is left out entirely (an unreported day is unreported rain), so the precipitation ranking covers 79 complete Augusts. Normals are the 1991–2020 mean for the same calendar month. Trend lines are a least-squares fit across every year shown.

Fall in Review — Fall 2026

September 1 – November 30, 2026

Fall 2026 is still under way. Season totals and rankings appear once November closes; the markers below update as they happen.

Summer to Winter — 2026

Each turning point of the season against its 1991–2020 normal date, with the earliest and latest on record

Marker 2026 Normal vs. normal Earliest Latest Drift
Last 90°F day
The final day of summer heat
 Aug 6
so far
 Aug 20 May 28, 1983 Oct 1, 1987 +0.8 d/decade
Last 80°F day
The last genuinely warm afternoon
 Aug 31
so far
 Sep 21 Aug 24, 1964 Oct 16, 2022 +0.2 d/decade
First high below 50°F
The first afternoon that stays cold
 not yet Nov 3 Oct 6, 1973 Nov 21, 1965 +0.1 d/decade
First 32°F freeze
Growing season over
 not yet Oct 13 Sep 1, 1973 Nov 10, 2015 +1.5 d/decade
First 28°F hard freeze
Cold enough to end tender growth
 not yet Oct 30 Sep 13, 1970 Dec 6, 2016 -0.2 d/decade
First 20°F night
Winter cold arriving
 not yet Nov 28 Oct 27, 2023 Dec 31, 1951 -1.5 d/decade
First measurable snow
0.1" or more in a day
 not yet — Nov 3, 1973 Dec 30, 1959 -0.6 d/decade

Drift is a least-squares fit across every year on record. Positive means the marker has been arriving later.

First Freeze by Year

The first 32°F night of each autumn since 1948 · trending +1.5 days later per decade

162
Normal length
1991–2020 average
209
Longest on record
2014
97
Shortest on record
1973

Growing Season Length by Year

Days between the last spring freeze and the first fall freeze · trending +3.3 days longer per decade

Fall Average Temperature by Year

1948–2025 · 2026 highlighted · trend +0.17° per decade (warming since 1948)

Fall Precipitation by Year

1948–2024 · 2026 highlighted · trend -0.02" per decade (drier since 1948)

About this data. Fall is meteorological autumn, September 1 through November 30, the window NOAA uses for seasonal statistics. Seasonal temperature is the day-weighted mean of the three monthly means; precipitation is their sum, and a season missing any of the three months is left out of the rankings. Freeze, heat and snow markers come from daily NOAA Threadex observations via RCC ACIS: freezes and snow are the first occurrence on or after July 1, and the last 90°F and 80°F days are the final ones anywhere in the calendar year. Growing season counts the freeze-free days between the last spring 32°F and the first fall 32°F.
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