Oklahoma City, OK

Oklahoma · Records since 1890–2026

☁️ 82°F Feels like 85°
Currently in Oklahoma City
As of 9:15 PM CDT

Records for September 26

🔥 Record High

98°F

September 26, 1977

+18° from 80° normal

❄ Record Low

35°F

September 26, 1912

-23° from 58° normal
🌞 Normal high: 80°F 🌑 Normal low: 58°F 1991–2020 normals

All-Time Records — Oklahoma City

🔥
113°F
Hottest Day Ever
Aug 3, 2012
❄
-17°F
Coldest Day Ever
Feb 12, 1899
🌧
7.62"
Wettest Day Ever
Jun 14, 2010
☃
13.5"
Most Snow in One Day
Dec 24, 2009

First & Last Dates — Oklahoma City

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)
261 days
Longest growing season
1998
177 days
Shortest growing season
2013
220 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 26

# Temp Date
🏆 98°F September 26, 1977
2 97°F September 26, 1898
3 96°F September 26, 1953
4 94°F September 26, 1938
5 93°F September 26, 2013
6 93°F September 26, 1951
7 92°F September 26, 1990
8 92°F September 26, 1897
9 91°F September 26, 2023
10 91°F September 26, 2021

Top 5 Record Lows — September 26

# Temp Date
🥶 35°F September 26, 1912
2 39°F September 26, 1942
3 40°F September 26, 2000
4 42°F September 26, 1975
5 42°F September 26, 1926
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 1890–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Oklahoma City

threshold: 100°F (90th percentile of historical Jun–Aug highs)
5.3
Avg heat wave length
days (historical)
104°
Avg peak temp
during heat waves
91
Dangerous nights 2026
Overnights ≥ 70°F
8
Heat waves 2026
so far

Days ≥ 90°F Per Year

1891–2026
107
2026 so far
70
Avg/year 1970–2025
74
Avg/year (last 10 complete)
113
Most in a year (1998)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Oklahoma City

# Dates Days Peak Avg High Avg Overnight Low
🏆 Aug 4, 1936 – Aug 25, 1936 22 113°F (Aug 11) 104°F 79°F
2 Jul 1, 1966 – Jul 19, 1966 19 108°F (Jul 19) 102°F 72°F
3 Jul 18, 2012 – Aug 4, 2012 18 113°F (Aug 3) 105°F 78°F
4 Aug 19, 2000 – Sep 4, 2000 17 108°F (Sep 2) 103°F 72°F
5 Aug 3, 1956 – Aug 18, 1956 16 107°F (Aug 15) 104°F 75°F
6 Jul 18, 1998 – Aug 2, 1998 16 107°F (Jul 26) 104°F 75°F
7 Aug 1, 1937 – Aug 14, 1937 14 107°F (Aug 10) 103°F 78°F
8 Jul 7, 1980 – Jul 20, 1980 14 106°F (Jul 16) 104°F 75°F
9 Jun 29, 2011 – Jul 11, 2011 13 110°F (Jul 9) 104°F 74°F
10 Jul 26, 2011 – Aug 6, 2011 12 110°F (Aug 5) 106°F 78°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

66
2026 total
above-normal nights
50.8
Avg / summer
1970–2020
82
Most in a summer
1980

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 (1890–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1890, annual totals have trended +0.58" per decade, about +7.9" 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 Oklahoma City is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

200 of 267 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

14.62"
2026 YTD
Normal: 28.91"
-14.29"
0.18"
September so far
September normal: 3.72"
-3.54"
4
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Oklahoma City is 14.29" behind the normal pace

Period Review — Jun 27 – Sep 25, 2026

Any window, evaluated against every other year on record — 91 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
85.6°F
Average temperature
2nd-warmest of 136
+5.7°
vs. average
Normal: 79.9°F (1991–2020)

Average Temperature by Year — Jun 27 – Sep 25

1891–2026 · 2026 highlighted · trend +0.11° per decade (warming since 1891)

Precipitation by Year — Jun 27 – Sep 25

1891–2025 · 2026 highlighted · trend +0.18" per decade (wetter since 1891)

Warmest Jun 27 – Sep 25 on Record

# Year Avg Temp
1 1980 85.7°F
2 2026 85.6°F
3 1936 85.5°F
4 1998 85.1°F
5 2011 84.5°F
6 1954 84.3°F
7 1978 83.7°F
8 2012 83.0°F
9 1939 83.0°F
10 1934 82.8°F

Coolest Jun 27 – Sep 25 on Record

# Year Avg Temp
1 1950 74.9°F
2 1915 75.3°F
3 1891 75.5°F
4 1906 75.9°F
5 1989 76.0°F
6 1892 76.1°F
7 1975 76.2°F
8 1974 76.2°F
9 1961 76.7°F
10 1992 76.7°F
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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