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Topics / Climate / United States / Oklahoma

Was September normal in Oklahoma?

September 2026 · 77 counties · data family: climatedata.dev

Much warmer than normal

82.8°FStatewide average temperature, September 2026

Every Oklahoma county, September 2026September 2026 was warmer than normal in every county with a figure: 77 much warmer; furthest above normal Pottawatomie County (+11.6°F), least Cimarron County (+5.8°F).Choose a county to see its answer. The colour shows how far each county was from its own 1991–2020 normal.
Indicator: Monthly average temperature minus the county's 1991–2020 normal for September, °F (NOAA nClimDiv via climatedata.dev); words from each county's rank in its own recordSource: climatedata.dev us-climate, version 2026-10-25.6c7474e6d8; boundaries: U.S. Census Bureau TIGERweb, counties (generalised), EPSG:5070 (CONUS Albers equal-area)
Every September since 1895, Oklahoma statewideSeptember 2026 averaged 82.8°F, +9.9°F against the 1991–2020 normal: the 1st warmest September of 132 since 1895.
60.065.070.075.080.085.01900192019401960198020002020normal 72.9°F2026: 82.8°F
Indicator: Monthly average temperature, °F (NOAA nClimDiv via climatedata.dev); normal = NOAA's 1991–2020 normal for that monthSource: climatedata.dev us-climate, version 2026-10-25.6c7474e6d8; NOAA Monthly U.S. Climate Divisional Database (nClimDiv), statewide and national files; climatedata.dev county-climate, version 2026-10-25.b4bbb5298a
Show the numbers (132 rows)
YearSeptember average
202682.8°F
202574.1°F
202474.8°F
202376.7°F
202275.9°F
202176.7°F
202070.3°F
201979.7°F
201873.9°F
201773.3°F
201675.3°F
201576.6°F
201473.3°F
201375.8°F
201274.4°F
201171.1°F
201075.0°F
200970.1°F
200870.1°F
200774.1°F
200669.3°F
200576.4°F
200473.6°F
200369.0°F
200274.0°F
200170.9°F
200075.3°F
199970.3°F
199879.6°F
199774.0°F
199669.1°F
199570.6°F
199470.9°F
199369.6°F
199271.4°F
199170.2°F
199075.5°F
198968.1°F
198872.3°F
198770.9°F
198673.9°F
198573.2°F
198471.1°F
198374.6°F
198273.2°F
198173.0°F
198076.2°F
197972.0°F
197876.8°F
197776.0°F
197671.0°F
197568.6°F
197464.7°F
197371.2°F
197275.0°F
197172.3°F
197074.0°F
196973.0°F
196870.3°F
196769.0°F
196669.5°F
196572.8°F
196472.2°F
196374.8°F
196271.4°F
196170.2°F
196074.4°F
195973.1°F
195873.8°F
195770.0°F
195676.7°F
195575.4°F
195478.6°F
195375.1°F
195273.8°F
195172.3°F
195070.0°F
194969.2°F
194873.9°F
194777.0°F
194672.0°F
194573.2°F
194472.5°F
194372.5°F
194270.6°F
194174.3°F
194072.3°F
193979.5°F
193875.1°F
193773.9°F
193676.0°F
193570.4°F
193470.5°F
193377.9°F
193272.9°F
193180.1°F
193076.6°F
192971.8°F
192871.7°F
192773.3°F
192673.6°F
192576.2°F
192470.2°F
192373.4°F
192275.9°F
192178.4°F
192073.7°F
191974.4°F
191867.7°F
191772.4°F
191672.3°F
191573.6°F
191475.0°F
191370.2°F
191271.5°F
191179.4°F
191077.6°F
190974.2°F
190872.5°F
190774.6°F
190673.6°F
190574.9°F
190474.6°F
190371.1°F
190267.6°F
190173.4°F
190075.4°F
189972.3°F
189873.7°F
189775.0°F
189672.6°F
189576.5°F

All 77 counties, September 2026

Record rank: 1 is the warmest September on record for that county.

1Pottawatomie84.9°F+11.6°F1 of 132Much warmer than normal
2Seminole84.8°F+11.6°F1 of 132Much warmer than normal
3Cleveland84.9°F+11.4°F1 of 132Much warmer than normal
4Hughes84.9°F+11.4°F1 of 132Much warmer than normal
5Oklahoma84.9°F+11.4°F1 of 132Much warmer than normal
6Pittsburg85.0°F+11.3°F1 of 132Much warmer than normal
7Jackson86.1°F+11.1°F1 of 132Much warmer than normal
8McClain84.8°F+11.1°F1 of 132Much warmer than normal
9Lincoln84.2°F+11.0°F1 of 132Much warmer than normal
10Haskell84.5°F+10.9°F1 of 132Much warmer than normal
11McIntosh84.6°F+10.9°F1 of 132Much warmer than normal
12Okfuskee84.0°F+10.9°F1 of 132Much warmer than normal
13Pontotoc84.5°F+10.9°F1 of 132Much warmer than normal
14Canadian84.1°F+10.8°F1 of 132Much warmer than normal
15Coal85.1°F+10.8°F1 of 132Much warmer than normal
16Grady84.5°F+10.7°F1 of 132Much warmer than normal
17Latimer83.9°F+10.7°F1 of 132Much warmer than normal
18Logan84.3°F+10.7°F1 of 132Much warmer than normal
19Sequoyah83.9°F+10.7°F1 of 132Much warmer than normal
20Tillman86.2°F+10.7°F1 of 132Much warmer than normal
21Caddo84.1°F+10.6°F1 of 132Much warmer than normal
22Garvin84.5°F+10.6°F1 of 132Much warmer than normal
23Harmon85.0°F+10.6°F1 of 132Much warmer than normal
24Kingfisher84.2°F+10.6°F1 of 132Much warmer than normal
25Kiowa84.7°F+10.6°F1 of 132Much warmer than normal
26Adair81.8°F+10.5°F1 of 132Much warmer than normal
27Comanche85.0°F+10.5°F1 of 132Much warmer than normal
28Greer84.7°F+10.5°F1 of 132Much warmer than normal
29Atoka84.9°F+10.4°F1 of 132Much warmer than normal
30Muskogee83.9°F+10.4°F1 of 132Much warmer than normal
31Payne83.3°F+10.4°F1 of 132Much warmer than normal
32Blaine83.2°F+10.3°F1 of 132Much warmer than normal
33Cotton85.8°F+10.3°F1 of 132Much warmer than normal
34Okmulgee83.4°F+10.2°F1 of 132Much warmer than normal
35Pushmataha83.8°F+10.2°F1 of 132Much warmer than normal
36Cherokee82.4°F+10.1°F1 of 132Much warmer than normal
37Ottawa81.4°F+10.1°F1 of 132Much warmer than normal
38Stephens84.6°F+10.1°F1 of 132Much warmer than normal
39Creek82.7°F+10.0°F1 of 132Much warmer than normal
40Le Flore82.9°F+10.0°F1 of 132Much warmer than normal
41Rogers82.6°F+10.0°F1 of 132Much warmer than normal
42Wagoner83.2°F+10.0°F1 of 132Much warmer than normal
43Beckham82.9°F+9.9°F1 of 132Much warmer than normal
44Craig81.5°F+9.9°F1 of 132Much warmer than normal
45Delaware81.1°F+9.9°F1 of 132Much warmer than normal
46Ellis81.1°F+9.9°F1 of 132Much warmer than normal
47Garfield82.8°F+9.9°F1 of 132Much warmer than normal
48Jefferson85.2°F+9.9°F1 of 132Much warmer than normal
49Major82.6°F+9.9°F1 of 132Much warmer than normal
50Mayes82.2°F+9.9°F1 of 132Much warmer than normal
51Murray83.9°F+9.9°F1 of 132Much warmer than normal
52Tulsa82.8°F+9.9°F1 of 132Much warmer than normal
53Washita83.2°F+9.9°F1 of 132Much warmer than normal
54Alfalfa82.4°F+9.8°F1 of 132Much warmer than normal
55Choctaw84.7°F+9.8°F1 of 132Much warmer than normal
56Custer82.4°F+9.8°F1 of 132Much warmer than normal
57Noble82.7°F+9.8°F1 of 132Much warmer than normal
58Osage81.6°F+9.8°F1 of 132Much warmer than normal
59Pawnee82.3°F+9.8°F1 of 132Much warmer than normal
60Dewey81.8°F+9.7°F1 of 132Much warmer than normal
61Nowata81.5°F+9.7°F1 of 132Much warmer than normal
62Roger Mills81.8°F+9.7°F1 of 132Much warmer than normal
63Washington81.7°F+9.7°F1 of 132Much warmer than normal
64Carter84.3°F+9.6°F1 of 132Much warmer than normal
65Johnston84.1°F+9.6°F1 of 132Much warmer than normal
66Woodward81.2°F+9.6°F1 of 132Much warmer than normal
67Harper80.9°F+9.5°F1 of 132Much warmer than normal
68Kay81.8°F+9.5°F1 of 132Much warmer than normal
69Love84.9°F+9.5°F1 of 132Much warmer than normal
70Bryan84.6°F+9.4°F1 of 132Much warmer than normal
71Grant82.0°F+9.4°F1 of 132Much warmer than normal
72Woods81.3°F+9.4°F1 of 132Much warmer than normal
73Marshall84.4°F+9.2°F1 of 132Much warmer than normal
74McCurtain82.9°F+9.1°F1 of 132Much warmer than normal
75Beaver79.5°F+8.7°F1 of 132Much warmer than normal
76Texas76.7°F+6.8°F1 of 132Much warmer than normal
77Cimarron73.6°F+5.8°F1 of 132Much warmer than normal

Get this data

This page's numbers, as JSON:

curl https://visualizedata.org/data/topics/climate/us-ok.json

The climatedata.dev API it comes from (live, no key; every month since 1895 with its normal, anomaly and rank):

curl "https://api.climatedata.dev/v1/us-climate/tavg/us-ok.json"

Open the JSON

What this can't tell you

  • A statewide average is not the average of its counties: NOAA computes it from its own grid, weighted by area.
  • The most recent months are preliminary and NOAA revises them in the next release.

How the answer is decided

Each month is ranked against the same month in every year on record (since 1895 for most places). The top tenth of the record is 'much warmer than normal', the top third 'warmer', the middle third 'near normal'. Counties are coloured by the same five words.

Sources

Every topic for one county: How's Hennepin County?