Viewing Station: WA-BT-25 : Richland 1.7 NNE
May 19, 2019 - Sep 17, 20252,023 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.21"
September 1-17, 2025(14 of 17 days covered by obs)
NOAA Normal
0.16"
Departure from Normal
0.05" : 132% of Normal
Year-To-Date: 5.04"
Jan 1 to Sep 17, 2025(254 of 260 days covered by obs)
NOAA Normal
4.81"
Departure from Normal
0.23" : 105% of Normal
Water Year-To-Date: 9.93"
Oct 1, 2024 to Sep 17, 2025(345 of 352 days covered by obs)
NOAA Normal
7.37"
Departure from Normal
2.56" : 135% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.05
1.05
0.00
Feb
0.72
0.75
-0.03
Mar
0.64
0.62
0.02
Apr
0.61
0.61
0.00
May
0.70
0.66
0.04
Jun
0.57
0.56
0.01
Jul
0.20
0.16
0.04
Aug
0.16
0.15
0.01
Sep
0.28
0.26
0.02
Oct
0.60
0.59
0.01
Nov
0.88
0.87
0.01
Dec
1.08
1.12
-0.04
7.49
7.40
0.09