Climate Duncan - Oklahoma

	JanJa	FebFe	MarMa	AprAp	MayMa	JunJu
Average high in ºF Av. high Hi	51	56	64	73	80	88
Average low in ºF Av. low Lo	28	32	41	49	59	67
Av. precipitation in inch Av. precip. Pre.	1.51	2.03	2.96	3.56	5.28	4.96
Av. snowfall in inch Snowfall Sn	2	1	0	0	0	0

	JulJu	AugAu	SepSe	OctOc	NovNo	DecDe
Average high in ºF Av. high Hi	93	94	85	75	63	52
Average low in ºF Av. low Lo	71	71	63	51	40	30
Av. precipitation in inch Av. precip. Pre.	2.60	2.78	3.64	4.26	2.31	2.12
Av. snowfall in inch Snowfall Sn	0	0	0	0	0	1

Duncan Climate Graph - Oklahoma Climate Chart

Day	High ºF	Low ºF	Prec/mo inch	Prec/yr inch	Snow/mo inch	Snow/yr inch
1 Jan	50.5	27.8	0.04	0.04	0.12	0.30
2 Jan	50.5	27.8	0.12	0.12	0.12	0.30
3 Jan	50.5	27.8	0.16	0.16	0.20	0.50
4 Jan	50.5	27.8	0.20	0.20	0.20	0.50
5 Jan	50.6	27.7	0.28	0.28	0.31	0.80
6 Jan	50.6	27.7	0.31	0.31	0.39	1.00
7 Jan	50.7	27.7	0.35	0.35	0.39	1.00
8 Jan	50.7	27.7	0.39	0.39	0.51	1.30
9 Jan	50.8	27.7	0.43	0.43	0.51	1.30
10 Jan	50.8	27.8	0.51	0.51	0.59	1.50
11 Jan	50.9	27.8	0.55	0.55	0.59	1.50
12 Jan	51.0	27.8	0.59	0.59	0.71	1.80

Day	High ºF	Low ºF	Precip. inch	Snow inch	Snow d. inch
01 Jul	-	-	1.22	0.00	0.0
02 Jul	-	-	0.00	0.00	0.0
03 Jul	-	-	0.00	0.00	0.0
04 Jul	-	-	0.00	0.00	0.0
05 Jul	-	-	1.02	0.00	0.0
06 Jul	-	-	0.00	0.00	0.0
07 Jul	-	-	0.00	0.00	0.0
08 Jul	-	-	0.00	0.00	0.0
09 Jul	-	-	0.00	0.00	0.0
10 Jul	-	-	0.00	0.00	0.0
11 Jul	-	-	0.00	0.00	0.0
12 Jul	-	-	0.00	0.00	0.0
13 Jul	-	-	0.68	0.00	0.0
14 Jul	-	-	0.00	0.00	0.0
15 Jul	-	-	0.00	0.00	0.0
16 Jul	-	-	0.00	0.00	0.0
17 Jul	-	-	0.00	0.00	0.0
18 Jul	-	-	0.00	0.00	0.0
19 Jul	-	-	0.00	0.00	0.0
20 Jul	-	-	-	-	-
21 Jul	-	-	-	-	-
22 Jul	-	-	-	-	-
23 Jul	-	-	-	-	-
24 Jul	-	-	-	-	-
25 Jul	-	-	-	-	-
26 Jul	-	-	-	-	-
27 Jul	-	-	-	-	-
28 Jul	-	-	-	-	-
29 Jul	-	-	-	-	-
30 Jul	-	-	-	-	-
31 Jul	-	-	-	-	-

	Jul 25	Normal
Average high temperature Av. high temp.	- ºF	51 ºF
Average low temperature Av. low temp.	- ºF	28 ºF
Total precipitation Total precip.	2.92 inch	1.51 inch
Total snowfall Total snowfall	0.00 inch	2 inch

Highest max temperature Highest max temp.	- ºF	-
Lowest max temperature Lowest max temp.	- ºF	-
Highest min temperature Highest min temp.	- ºF	-
Lowest min temperature Lowest min temp.	- ºF	-

Past weather July 2025 incomplete - Missing data

USGS National Map — Open interactive map

Station Data

Monthly averages Duncan
Longitude: -97.9599, Latitude: 34.4713
Average weather Duncan, OK - 73533

Monthly: 1991-2020 normals
History: 2007-2025

Abbreviations

Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...