Viewing Station: PA-BT-70 : Slippery Rock 0.6 SSW
Aug 18, 2025 - Aug 21, 2026262 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 3.47"
August 1-21, 2026(18 of 21 days covered by obs)
NOAA Normal
2.66"
Departure from Normal
0.81" : 130% of Normal
Year-To-Date: 29.86"
Jan 1 to Aug 21, 2026(155 of 233 days covered by obs)
NOAA Normal
28.80"
Departure from Normal
1.06" : 104% of Normal
Water Year-To-Date: 38.37"
Oct 1, 2025 to Aug 21, 2026(219 of 325 days covered by obs)
NOAA Normal
38.54"
Departure from Normal
-0.17" : 100% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.15
3.03
0.12
Feb
2.51
2.56
-0.05
Mar
3.32
3.33
-0.01
Apr
3.87
3.89
-0.02
May
3.99
4.00
-0.01
Jun
4.66
4.53
0.13
Jul
4.64
4.50
0.14
Aug
3.93
3.81
0.12
Sep
3.92
3.85
0.07
Oct
3.28
3.38
-0.10
Nov
3.20
3.28
-0.08
Dec
3.26
3.22
0.04
43.73
43.38
0.35