Viewing Station: WA-KG-315 : Mercer Island 1.2 NE
Jan 10, 2024 - Dec 9, 2025459 Total Observations
View:

Climatology

Precipitation Normals Comparison

Month-To-Date: 2.49"
December 1-10, 2025(8 of 10 days covered by obs)
NOAA Normal
1.70"
Departure from Normal
0.79" : 146% of Normal
Year-To-Date: 26.86"
Jan 1 to Dec 10, 2025(219 of 344 days covered by obs)
NOAA Normal
33.17"
Departure from Normal
-6.31" : 81% of Normal
Water Year-To-Date: 12.11"
Oct 1, 2025 to Dec 10, 2025(67 of 71 days covered by obs)
NOAA Normal
10.92"
Departure from Normal
1.19" : 111% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
5.05
5.50
-0.45
Feb
3.48
3.84
-0.36
Mar
3.98
4.20
-0.22
Apr
3.00
3.12
-0.12
May
1.98
2.04
-0.06
Jun
1.55
1.64
-0.09
Jul
0.69
0.71
-0.02
Aug
0.96
0.94
0.02
Sep
1.56
1.62
-0.06
Oct
3.63
3.88
-0.25
Nov
5.59
6.02
-0.43
Dec
5.27
5.85
-0.58
36.74
39.36
-2.62