Winslow, AZ

Arizona · Records since 1915–2026

⛅ 89°F
Currently in Winslow
As of 11:30 AM MST
🔥 6° below today's record of 95°F

Records for September 11

🔥 Record High

95°F

September 11, 1971

+8° from 87° normal

❄ Record Low

38°F

September 11, 2020

-18° from 56° normal
🌞 Normal high: 87°F 🌑 Normal low: 56°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

First & Last Dates — Winslow

How early and how late each seasonal turning point has ever arrived, across the full period of record

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Range ever recorded Normal date (1991–2020)
209 days
Longest growing season
1952
122 days
Shortest growing season
1971
165 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 11

# Temp Date
🏆 95°F September 11, 1971
2 94°F September 11, 2024
3 94°F September 11, 1956
4 94°F September 11, 1945
5 93°F September 11, 2021
6 93°F September 11, 2018
7 93°F September 11, 2017
8 93°F September 11, 2015
9 93°F September 11, 1990
10 93°F September 11, 1983

Top 5 Record Lows — September 11

# Temp Date
🥶 38°F September 11, 2020
2 42°F September 11, 1928
3 42°F September 11, 1925
4 43°F September 11, 2010
5 43°F September 11, 1986
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

Days ≥ 90°F Per Year

1915–2026
93
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

Annual totals and trend across the full period of record · see this year's standing →

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")

This Year — 2026

How Winslow is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

163 of 253 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

5.03"
2026 YTD
Normal: 4.53"
+0.50"
0.01"
September so far
September normal: 0.87"
-0.86"
1
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Winslow is 0.50" ahead of the normal pace

Period Review — Jun 1 – Aug 31, 2026

Any window, evaluated against every other year on record — 92 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
79.2°F
Average temperature
3rd-warmest of 112
+2.9°
vs. average
Normal: 76.3°F (1991–2020)
3.86"
Precipitation
26th-wettest of 111
+1.62"
vs. average
Normal: 2.24" · 172% of normal

Average Temperature by Year — Jun 1 – Aug 31

1915–2026 · 2026 highlighted · trend +0.28° per decade (warming since 1915)

Precipitation by Year — Jun 1 – Aug 31

1915–2026 · 2026 highlighted · trend -0.13" per decade (drier since 1915)

Warmest Jun 1 – Aug 31 on Record

# Year Avg Temp
1 2024 80.7°F
2 2021 79.4°F
3 2026 79.2°F
4 2018 79.1°F
5 2020 78.8°F
6 1960 78.5°F
7 1996 78.4°F
8 2025 78.2°F
9 2022 78.1°F
10 2019 78.1°F

Coolest Jun 1 – Aug 31 on Record

# Year Avg Temp
1 1992 71.3°F
2 1991 71.8°F
3 1941 72.1°F
4 1923 72.5°F
5 1921 73.1°F
6 1993 73.1°F
7 1973 73.3°F
8 1916 73.3°F
9 1944 73.4°F
10 1965 73.4°F

Wettest Jun 1 – Aug 31 on Record

# Year Total
1 1923 7.30"
2 1927 6.90"
3 1992 6.17"
4 1921 6.07"
5 2015 5.49"
6 1955 5.47"
7 1928 5.43"
8 1972 5.14"
9 1963 4.97"
10 1967 4.82"

Driest Jun 1 – Aug 31 on Record

# Year Total
1 2003 0.19"
2 2020 0.47"
3 2009 0.50"
4 2002 0.54"
5 2019 0.63"
6 1944 0.75"
7 1962 0.93"
8 1994 1.00"
9 1968 1.10"
10 1940 1.12"
About this data. Pick any start and end date and this becomes the same kind of review as the Month and Fall tabs, just for exactly the window you asked for — the generalized version of the same engine, evaluated across every year on record. Average temperature is the mean of each day's (high + low) / 2; precipitation is the sum of daily totals. A year missing more than about a fifth of the window's days is excluded from the temperature ranking; any missing day excludes a year from the precipitation ranking, since an unreported day is unreported rain. Ranges that cross from December into January aren't supported yet. Normals are the 1991–2020 mean for the same window.
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