Viewing Station: TN-RD-55 : Rock Vale 4.5S
Mar 11, 2008 - Sep 30, 20266,684 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.40"
September 1-30, 2026(30 of 30 days covered by obs)
NOAA Normal
3.91"
Departure from Normal
-2.51" : 36% of Normal
Year-To-Date: 23.47"
Jan 1 to Sep 30, 2026(273 of 273 days covered by obs)
NOAA Normal
41.77"
Departure from Normal
-18.30" : 56% of Normal
Water Year-To-Date: 33.22"
Oct 1, 2025 to Sep 30, 2026(365 of 365 days covered by obs)
NOAA Normal
54.81"
Departure from Normal
-21.59" : 61% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
4.64
4.78
-0.14
Feb
5.06
4.92
0.14
Mar
5.37
5.35
0.02
Apr
4.94
4.88
0.06
May
4.82
4.62
0.20
Jun
4.50
4.67
-0.17
Jul
4.56
4.49
0.07
Aug
3.97
3.70
0.27
Sep
3.91
4.00
-0.09
Oct
3.64
3.33
0.31
Nov
3.90
3.92
-0.02
Dec
5.50
5.82
-0.32
54.81
54.48
0.33