Viewing Station: CA-AL-43 : Castro Valley 1.7 WNW
Oct 2, 2018 - Jun 10, 2026605 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.03"
June 1-10, 2026(10 of 10 days covered by obs)
NOAA Normal
0.05"
Departure from Normal
-0.02" : 60% of Normal
Year-To-Date: 12.57"
Jan 1 to Jun 10, 2026(160 of 161 days covered by obs)
NOAA Normal
12.93"
Departure from Normal
-0.36" : 97% of Normal
Water Year-To-Date: 21.63"
Oct 1, 2025 to Jun 10, 2026(252 of 253 days covered by obs)
NOAA Normal
19.90"
Departure from Normal
1.73" : 109% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.86
4.42
-0.56
Feb
3.79
4.31
-0.52
Mar
3.00
3.53
-0.53
Apr
1.51
1.80
-0.29
May
0.72
0.83
-0.11
Jun
0.15
0.24
-0.09
Jul
0.01
0.01
0.00
Aug
0.03
0.05
-0.02
Sep
0.11
0.12
-0.01
Oct
0.93
1.11
-0.18
Nov
2.09
2.36
-0.27
Dec
3.95
4.43
-0.48
20.15
23.21
-3.06