Viewing Station: TN-GY-8 : Altamont 3.9 NW
Dec 27, 2007 - Sep 17, 20256,270 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.45"
September 1-17, 2025(17 of 17 days covered by obs)
NOAA Normal
2.56"
Departure from Normal
-1.11" : 57% of Normal
Year-To-Date: 48.62"
Jan 1 to Sep 17, 2025(259 of 260 days covered by obs)
NOAA Normal
45.29"
Departure from Normal
3.33" : 107% of Normal
Water Year-To-Date: 56.65"
Oct 1, 2024 to Sep 17, 2025(351 of 352 days covered by obs)
NOAA Normal
60.11"
Departure from Normal
-3.46" : 94% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
5.90
5.30
0.60
Feb
5.63
5.47
0.16
Mar
5.82
5.99
-0.17
Apr
5.74
5.96
-0.22
May
5.08
5.21
-0.13
Jun
5.70
5.25
0.45
Jul
4.81
5.42
-0.61
Aug
4.05
4.52
-0.47
Sep
4.52
4.00
0.52
Oct
3.61
3.45
0.16
Nov
4.79
4.66
0.13
Dec
6.42
6.28
0.14
62.07
61.51
0.56