Viewing Station: OK-ST-21 : Duncan 11.2 E
May 18, 2026 - Jun 21, 202639 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.45"
June 1-21, 2026(21 of 21 days covered by obs)
NOAA Normal
2.97"
Departure from Normal
-0.52" : 83% of Normal
Year-To-Date: 3.20"
Jan 1 to Jun 21, 2026(35 of 172 days covered by obs)
NOAA Normal
17.49"
Departure from Normal
-14.29" : 18% of Normal
Water Year-To-Date: 3.20"
Oct 1, 2025 to Jun 21, 2026(35 of 264 days covered by obs)
NOAA Normal
25.16"
Departure from Normal
-21.96" : 13% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.55
1.46
0.09
Feb
1.72
1.75
-0.03
Mar
2.69
2.63
0.06
Apr
3.40
3.45
-0.05
May
5.16
5.40
-0.24
Jun
4.24
4.20
0.04
Jul
2.48
2.55
-0.07
Aug
2.88
2.82
0.06
Sep
3.66
3.56
0.10
Oct
3.43
3.49
-0.06
Nov
2.18
2.29
-0.11
Dec
2.06
1.83
0.23
35.45
35.43
0.02