Viewing Station: TN-SR-105 : Portland 8.1 SSE
Apr 2, 2024 - Sep 17, 2025315 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.61"
September 1-17, 2025(17 of 17 days covered by obs)
NOAA Normal
2.14"
Departure from Normal
-1.53" : 29% of Normal
Year-To-Date: 42.43"
Jan 1 to Sep 17, 2025(259 of 260 days covered by obs)
NOAA Normal
38.97"
Departure from Normal
3.46" : 109% of Normal
Water Year-To-Date: 52.29"
Oct 1, 2024 to Sep 17, 2025(351 of 352 days covered by obs)
NOAA Normal
51.33"
Departure from Normal
0.96" : 102% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
4.19
4.19
0.00
Feb
4.45
4.53
-0.08
Mar
4.77
4.88
-0.11
Apr
4.96
4.91
0.05
May
5.46
5.47
-0.01
Jun
4.50
4.39
0.11
Jul
4.67
4.66
0.01
Aug
3.83
3.78
0.05
Sep
3.77
3.68
0.09
Oct
3.64
3.65
-0.01
Nov
3.78
3.76
0.02
Dec
4.94
4.84
0.10
52.96
52.74
0.22