Winslow, AZ

Arizona · Records since 1915–2026

☁️ 86°F
Currently in Winslow
As of 11:45 AM MST

Records for September 7

🔥 Record High

102°F

September 7, 2020

+14° from 88° normal

❄ Record Low

46°F

September 7, 1918

-11° from 57° normal
🌞 Normal high: 88°F 🌑 Normal low: 57°F 1991–2020 normals

All-Time Records — Winslow

🔥
110°F
Hottest Day Ever
Jul 10, 2021
❄
-18°F
Coldest Day Ever
Jan 23, 1937
🌧
2.43"
Wettest Day Ever
Aug 1, 1928
☃
19.0"
Most Snow in One Day
Dec 11, 1923

Top 10 Record Highs — September 7

# Temp Date
🏆 102°F September 7, 2020
2 98°F September 7, 2023
3 97°F September 7, 2021
4 97°F September 7, 2017
5 96°F September 7, 2022
6 96°F September 7, 1959
7 95°F September 7, 2019
8 95°F September 7, 1977
9 95°F September 7, 1973
10 95°F September 7, 1955

Top 5 Record Lows — September 7

# Temp Date
🥶 46°F September 7, 1918
2 47°F September 7, 2004
3 47°F September 7, 1962
4 48°F September 7, 1970
5 48°F September 7, 1929
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 1915–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Winslow

threshold: 99°F (90th percentile of historical Jun–Aug highs)
5.2
Avg heat wave length
days (historical)
102°
Avg peak temp
during heat waves
12
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

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

Days ≥ 90°F Per Year

1915–2026
90
2026 so far
75
Avg/year 1970–2025
99
Avg/year (last 10 complete)
121
Most in a year (2024)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Winslow

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 2, 2023 – Jul 29, 2023 28 107°F (Jul 16) 102°F 65°F
2 Jul 3, 2024 – Jul 20, 2024 18 106°F (Jul 11) 102°F 65°F
3 Aug 10, 2020 – Aug 27, 2020 18 104°F (Aug 15) 102°F 65°F
4 Jul 3, 2003 – Jul 17, 2003 15 105°F (Jul 9) 102°F 64°F
5 Jun 17, 2015 – Jul 1, 2015 15 104°F (Jun 26) 101°F 61°F
6 Jul 25, 1995 – Aug 7, 1995 14 106°F (Jul 28) 101°F 62°F
7 Jun 15, 2017 – Jun 27, 2017 13 108°F (Jun 21) 103°F 60°F
8 Jun 28, 2007 – Jul 10, 2007 13 106°F (Jul 4) 102°F 62°F
9 Jun 11, 2021 – Jun 22, 2021 12 107°F (Jun 15) 104°F 62°F
10 Jul 9, 1971 – Jul 19, 1971 11 109°F (Jul 13) 103°F 67°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

69
2026 total
above-normal nights
34.9
Avg / summer
1970–2020
71
Most in a summer
2024

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

5.03"
2026 YTD
Normal: 4.39"
+0.64"
0.01"
September so far
September normal: 0.87"
-0.86"
1
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 · Winslow is 0.64" ahead of the normal pace

Monthly Precipitation — Last 24 Months

Blue = actual · dashed line = monthly normal

Annual Precipitation Per Year (1915–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1915, annual totals have trended -0.19" per decade, about -2.1" 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

80.0°F

Average temperature · August 2026

28th-warmest month on record

3rd-warmest August of 112 on record

+3.4° vs. 76.6° average (1991–2020)
83.3°F
Warmest month ever
July 2023
81.9°F
Warmest August ever
2020
24
Days ≥ 90°F
in August
104°F
Hottest of 2026
Jul 11

Longest 90°F Streak in August

11 consecutive days with highs of at least 90°F (Aug 1–11, 2026, peaking at 104°F)

The longest August streak since 2025 (1 year). The August record is 31 days, set in 2020.

Average August Temperature by Year

1915–2026 · 2026 highlighted · trend +0.26° per decade (warming since 1915)

Precipitation — August 2026

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

2.37"
Total precipitation
August 2026
+1.18"
vs. average
Normal: 1.19" · 199% of normal
15th-wettest
August rank
of 111 on record
4.80"
Wettest August ever
1963 · driest 0.07" (1998)

August Precipitation by Year

1915–2026 · 2026 highlighted · trend -0.05" per decade (drier since 1915)

Wettest Augusts on Record

# Year Total
1 1963 4.80"
2 1928 4.44"
3 2015 3.26"
4 1921 3.21"
5 1920 2.93"
6 1964 2.81"
7 1947 2.69"
8 1982 2.69"
9 2014 2.68"
10 1993 2.64"

Driest Augusts on Record

# Year Total
1 1998 0.07"
2 2002 0.12"
3 1968 0.15"
4 2020 0.16"
5 2003 0.18"
6 1944 0.19"
7 2009 0.23"
8 2021 0.24"
9 1917 0.28"
10 1978 0.30"

Warmest Augusts on Record

# Year Avg Temp
1 2020 81.9°F
2 2019 80.5°F
3 2011 80.0°F
4 2026 80.0°F
5 2025 79.9°F
6 2024 79.7°F
7 1958 79.2°F
8 1969 78.9°F
9 1960 78.6°F
10 2018 78.6°F

Warmest Months on Record (Any Month)

# Month Avg Temp
1 July 2023 83.3°F
2 July 2024 83.2°F
3 July 1971 82.5°F
4 July 2018 81.9°F
5 July 2003 81.9°F
6 August 2020 81.9°F
7 July 2021 81.7°F
8 July 1959 80.9°F
9 July 1963 80.8°F
10 July 2006 80.8°F

Nearby Stations — August 2026

How the same month ranked at the closest reporting stations

Station Avg Temp August Rank
Winslow, AZ 80.0°F 3rd of 112
Flagstaff, AZ 68.9°F 1st of 128
Phoenix, AZ 98.5°F 4th of 131
Oracle, AZ 82.9°F 3rd of 106
Kingman, AZ 86.2°F 2nd of 112
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 1,335 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 111 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
 Sep 6
so far
 Sep 20 Aug 20, 1992 Oct 11, 2024 +0.3 d/decade
Last 80°F day
The last genuinely warm afternoon
 Sep 6
so far
 Oct 22 Sep 20, 1986 Nov 18, 2020 +0.6 d/decade
First high below 50°F
The first afternoon that stays cold
 not yet Nov 13 Oct 12, 1947 Dec 11, 2021 +0.1 d/decade
First 32°F freeze
Growing season over
 not yet Oct 15 Sep 19, 1971 Nov 12, 1988 -0.1 d/decade
First 28°F hard freeze
Cold enough to end tender growth
 not yet Oct 26 Oct 5, 1969 Nov 17, 2016 +0.4 d/decade
First 20°F night
Winter cold arriving
 not yet Nov 9 Oct 11, 2019 Dec 17, 1946 -0.2 d/decade
First measurable snow
0.1" or more in a day
 not yet — Oct 19, 1949 Dec 31, 1950 -0.5 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 1915 · trending -0.1 days earlier per decade

165
Normal length
1991–2020 average
209
Longest on record
1952
122
Shortest on record
1971

Growing Season Length by Year

Days between the last spring freeze and the first fall freeze · trending +0.1 days longer per decade

Fall Average Temperature by Year

1915–2025 · 2026 highlighted · trend +0.15° per decade (warming since 1915)

Fall Precipitation by Year

1915–2025 · 2026 highlighted · trend +0.01" per decade (wetter since 1915)

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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