Viewing Station: WA-KG-319 : Mercer Island 2.3 SSE
Dec 27, 2024 - Aug 30, 2025200 Total Observations
View:

Climatology

Precipitation Normals Comparison

Month-To-Date: 0.00"
September 1-1, 2025(0 of 1 days covered by obs)
NOAA Normal
0.05"
Departure from Normal
-0.05" : 0% of Normal
Year-To-Date: 18.36"
Jan 1 to Sep 1, 2025(242 of 244 days covered by obs)
NOAA Normal
21.05"
Departure from Normal
-2.69" : 87% of Normal
Water Year-To-Date: 19.20"
Oct 1, 2024 to Sep 1, 2025(247 of 336 days covered by obs)
NOAA Normal
35.68"
Departure from Normal
-16.48" : 54% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
5.13
5.53
-0.40
Feb
3.54
3.89
-0.35
Mar
4.00
4.26
-0.26
Apr
3.10
3.19
-0.09
May
2.01
2.02
-0.01
Jun
1.56
1.63
-0.07
Jul
0.69
0.69
0.00
Aug
0.97
0.93
0.04
Sep
1.57
1.60
-0.03
Oct
3.70
3.94
-0.24
Nov
5.66
6.10
-0.44
Dec
5.27
5.85
-0.58
37.20
39.63
-2.43