Station Overview Station Location
Station Number CA-AL-2 Latitude 37.707518
Station Name Castro Valley 0.5 WSW Longitude -122.068694
County Alameda Elevation (ft) 287



Month 30 Yr Avg by PRISM Total Prcp Sum Days Covered By All Observations Daily Prcp Sum Daily Observation Count Multiday Prcp Sum Days Covered by Multiday Observations Multiday Observation Count Days With Prcp Days With Trace Total Snowfall Days With Snowfall Days With Snow On Ground
Oct 11 1.25 1.83 31 1.83 31 0.00 0 0 7 0 0.0 0 0
Nov 11 2.91 1.59 29 1.59 29 0.00 0 0 8 0 0.0 0 0
Dec 11 4.09 0.07 28 0.07 28 0.00 0 0 1 0 0.0 0 0
Jan 12 4.51 0.00 28 0.00 28 0.00 0 0 0 0 0.0 0 0
Feb 12 4.37 0.00 3 0.00 3 0.00 0 0 0 0 0.0 0 0
March 12 3.64 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 12 1.54 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
May 12 0.82 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
June 12 0.20 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 12 0.02 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 12 0.06 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 12 0.23 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 23.64" 3.49" 119 days 3.49" 119 0.00" 0 days 0 16 days 0 days 0.0" 0 days 0 days



Days in Water Year Cell Color Key
        Daily Observation with Prcp         Missing Day
        Multiday Observation         Daily/Multiday Observation Conflict

Day of Year Daily Prcp Multiday Prcp
10/1/2011 0.00
10/2/2011 0.00
10/3/2011 0.00
10/4/2011 0.19
10/5/2011 0.65
10/6/2011 0.12
10/7/2011 0.27
10/8/2011 0.00
10/9/2011 0.00
10/10/2011 0.02
10/11/2011 0.57
10/12/2011 0.00
10/13/2011 0.00
10/14/2011 0.00
10/15/2011 0.00
10/16/2011 0.01
10/17/2011 0.00
10/18/2011 0.00
10/19/2011 0.00
10/20/2011 0.00
10/21/2011 0.00
10/22/2011 0.00
10/23/2011 0.00
10/24/2011 0.00
10/25/2011 0.00
10/26/2011 0.00
10/27/2011 0.00
10/28/2011 0.00
10/29/2011 0.00
10/30/2011 0.00
10/31/2011 0.00
11/1/2011 0.00
11/2/2011 0.00
11/3/2011 0.00
11/4/2011 0.16
11/5/2011 0.00
11/6/2011 0.54
11/7/2011 0.00
11/8/2011 0.00
11/9/2011 0.00
11/10/2011 0.00
11/11/2011 0.00
11/12/2011 0.15
11/13/2011 0.00
11/14/2011 0.00
11/15/2011 0.00
11/16/2011 0.00
11/17/2011 0.00
11/18/2011 0.02
11/19/2011 0.08
11/20/2011 0.30
11/21/2011 0.26
11/22/2011 0.00
11/23/2011 0.00
11/24/2011 0.08
11/25/2011
11/26/2011 0.00
11/27/2011 0.00
11/28/2011 0.00
11/29/2011 0.00
11/30/2011 0.00
12/1/2011 0.00
12/2/2011 0.00
12/3/2011 0.00
12/4/2011 0.00
12/5/2011 0.00
12/6/2011 0.00
12/7/2011 0.00
12/8/2011 0.00
12/9/2011
12/10/2011 0.00
12/11/2011 0.00
12/12/2011 0.00
12/13/2011 0.00
12/14/2011 0.00
12/15/2011 0.07
12/16/2011 0.00
12/17/2011 0.00
12/18/2011 0.00
12/19/2011 0.00
12/20/2011 0.00
12/21/2011 0.00
12/22/2011 0.00
12/23/2011 0.00
12/24/2011 0.00
12/25/2011 0.00
12/26/2011 0.00
12/27/2011 0.00
12/28/2011
12/29/2011
12/30/2011 0.00
12/31/2011 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2012 0.00
1/2/2012 0.00
1/3/2012 0.00
1/4/2012 0.00
1/5/2012 0.00
1/6/2012 0.00
1/7/2012 0.00
1/8/2012 0.00
1/9/2012 0.00
1/10/2012 0.00
1/11/2012 0.00
1/12/2012 0.00
1/13/2012 0.00
1/14/2012 0.00
1/15/2012 0.00
1/16/2012 0.00
1/17/2012 0.00
1/18/2012 0.00
1/19/2012 0.00
1/20/2012 0.00
1/21/2012 0.00
1/22/2012 0.00
1/23/2012 0.00
1/24/2012 0.00
1/25/2012 0.00
1/26/2012 0.00
1/27/2012 0.00
1/28/2012 0.00
1/29/2012
1/30/2012
1/31/2012
2/1/2012
2/2/2012
2/3/2012
2/4/2012
2/5/2012
2/6/2012
2/7/2012 0.00
2/8/2012 0.00
2/9/2012 0.00
2/10/2012
2/11/2012
2/12/2012
2/13/2012
2/14/2012
2/15/2012
2/16/2012
2/17/2012
2/18/2012
2/19/2012
2/20/2012
2/21/2012
2/22/2012
2/23/2012
2/24/2012
2/25/2012
2/26/2012
2/27/2012
2/28/2012
2/29/2012
3/1/2012
3/2/2012
3/3/2012
3/4/2012
3/5/2012
3/6/2012
3/7/2012
3/8/2012
3/9/2012
3/10/2012
3/11/2012
3/12/2012
3/13/2012
3/14/2012
3/15/2012
3/16/2012
3/17/2012
3/18/2012
3/19/2012
3/20/2012
3/21/2012
3/22/2012
3/23/2012
3/24/2012
3/25/2012
3/26/2012
3/27/2012
3/28/2012
3/29/2012
3/30/2012
3/31/2012
Day of YearDaily PrcpMultiday Prcp
4/1/2012
4/2/2012
4/3/2012
4/4/2012
4/5/2012
4/6/2012
4/7/2012
4/8/2012
4/9/2012
4/10/2012
4/11/2012
4/12/2012
4/13/2012
4/14/2012
4/15/2012
4/16/2012
4/17/2012
4/18/2012
4/19/2012
4/20/2012
4/21/2012
4/22/2012
4/23/2012
4/24/2012
4/25/2012
4/26/2012
4/27/2012
4/28/2012
4/29/2012
4/30/2012
5/1/2012
5/2/2012
5/3/2012
5/4/2012
5/5/2012
5/6/2012
5/7/2012
5/8/2012
5/9/2012
5/10/2012
5/11/2012
5/12/2012
5/13/2012
5/14/2012
5/15/2012
5/16/2012
5/17/2012
5/18/2012
5/19/2012
5/20/2012
5/21/2012
5/22/2012
5/23/2012
5/24/2012
5/25/2012
5/26/2012
5/27/2012
5/28/2012
5/29/2012
5/30/2012
5/31/2012
6/1/2012
6/2/2012
6/3/2012
6/4/2012
6/5/2012
6/6/2012
6/7/2012
6/8/2012
6/9/2012
6/10/2012
6/11/2012
6/12/2012
6/13/2012
6/14/2012
6/15/2012
6/16/2012
6/17/2012
6/18/2012
6/19/2012
6/20/2012
6/21/2012
6/22/2012
6/23/2012
6/24/2012
6/25/2012
6/26/2012
6/27/2012
6/28/2012
6/29/2012
6/30/2012
Day of YearDaily PrcpMultiday Prcp
7/1/2012
7/2/2012
7/3/2012
7/4/2012
7/5/2012
7/6/2012
7/7/2012
7/8/2012
7/9/2012
7/10/2012
7/11/2012
7/12/2012
7/13/2012
7/14/2012
7/15/2012
7/16/2012
7/17/2012
7/18/2012
7/19/2012
7/20/2012
7/21/2012
7/22/2012
7/23/2012
7/24/2012
7/25/2012
7/26/2012
7/27/2012
7/28/2012
7/29/2012
7/30/2012
7/31/2012
8/1/2012
8/2/2012
8/3/2012
8/4/2012
8/5/2012
8/6/2012
8/7/2012
8/8/2012
8/9/2012
8/10/2012
8/11/2012
8/12/2012
8/13/2012
8/14/2012
8/15/2012
8/16/2012
8/17/2012
8/18/2012
8/19/2012
8/20/2012
8/21/2012
8/22/2012
8/23/2012
8/24/2012
8/25/2012
8/26/2012
8/27/2012
8/28/2012
8/29/2012
8/30/2012
8/31/2012
9/1/2012
9/2/2012
9/3/2012
9/4/2012
9/5/2012
9/6/2012
9/7/2012
9/8/2012
9/9/2012
9/10/2012
9/11/2012
9/12/2012
9/13/2012
9/14/2012
9/15/2012
9/16/2012
9/17/2012
9/18/2012
9/19/2012
9/20/2012
9/21/2012
9/22/2012
9/23/2012
9/24/2012
9/25/2012
9/26/2012
9/27/2012
9/28/2012
9/29/2012
9/30/2012



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2011 7:00 AM 0.00 0.0 M M M
10/2/2011 7:00 AM 0.00 0.0 M M M
10/3/2011 7:00 AM 0.00 0.0 M M M
10/4/2011 7:00 AM 0.19 M M M M
10/5/2011 7:00 AM 0.65 M M M M
10/6/2011 7:00 AM 0.12 M M M M
10/7/2011 7:00 AM 0.27 M M M M
10/8/2011 7:00 AM 0.00 0.0 M M M
10/9/2011 7:00 AM 0.00 0.0 M M M
10/10/2011 7:00 AM 0.02 M M M M drizzle
10/11/2011 7:00 AM 0.57 M M M M
10/12/2011 7:00 AM 0.00 0.0 M M M
10/13/2011 7:00 AM 0.00 0.0 M M M
10/14/2011 7:00 AM 0.00 0.0 M M M
10/15/2011 7:00 AM 0.00 0.0 M M M
10/16/2011 7:00 AM 0.01 M M M M talk about waking up to a surprise early this morning! Raindrops?! Right after I pulled out a bunch of gardening equipment to dry thoroughly after the last rains?!
10/17/2011 7:00 AM 0.00 0.0 M M M
10/18/2011 7:00 AM 0.00 0.0 M M M
10/19/2011 7:00 AM 0.00 0.0 M M M
10/20/2011 7:00 AM 0.00 0.0 M M M
10/21/2011 7:00 AM 0.00 0.0 M M M
10/22/2011 7:00 AM 0.00 0.0 M M M
10/23/2011 7:00 AM 0.00 0.0 M M M
10/24/2011 7:00 AM 0.00 0.0 M M M
10/25/2011 7:00 AM 0.00 0.0 M M M
10/26/2011 7:00 AM 0.00 0.0 M M M
10/27/2011 7:00 AM 0.00 0.0 M M M
10/28/2011 7:00 AM 0.00 0.0 M M M
10/29/2011 7:00 AM 0.00 0.0 M M M
10/30/2011 7:00 AM 0.00 0.0 M M M
10/31/2011 7:00 AM 0.00 0.0 M M M
11/1/2011 7:00 AM 0.00 0.0 M M M
11/2/2011 7:00 AM 0.00 0.0 M M M
11/3/2011 7:00 AM 0.00 0.0 M M M
11/4/2011 7:00 AM 0.16 M M M M
11/5/2011 7:00 AM 0.00 0.0 M M M
11/6/2011 7:00 AM 0.54 M M M M
11/7/2011 7:00 AM 0.00 0.0 M M M
11/8/2011 7:00 AM 0.00 0.0 M M M
11/9/2011 7:00 AM 0.00 0.0 M M M
11/10/2011 7:00 AM 0.00 0.0 M M M
11/11/2011 7:00 AM 0.00 0.0 M M M
11/12/2011 7:00 AM 0.15 M M M M drizzle since 8 am 11/11/11
11/13/2011 7:00 AM 0.00 0.0 M M M
11/14/2011 7:00 AM 0.00 0.0 M M M
11/15/2011 7:00 AM 0.00 0.0 M M M
11/16/2011 7:00 AM 0.00 0.0 M M M
11/17/2011 7:00 AM 0.00 0.0 M M M
11/18/2011 7:00 AM 0.02 M M M M
11/19/2011 7:00 AM 0.08 M M M M
11/20/2011 7:00 AM 0.30 M M M M
11/21/2011 7:00 AM 0.26 M M M M
11/22/2011 7:00 AM 0.00 0.0 M M M
11/23/2011 7:00 AM 0.00 0.0 M M M
11/24/2011 7:00 AM 0.08 M M M M
11/26/2011 7:00 AM 0.00 0.0 M M M
11/27/2011 7:00 AM 0.00 0.0 M M M
11/28/2011 7:00 AM 0.00 0.0 M M M
11/29/2011 7:00 AM 0.00 0.0 M M M
11/30/2011 7:00 AM 0.00 0.0 M M M
12/1/2011 7:00 AM 0.00 0.0 M M M windy - gusts to 40 mph. not normal for this time of year.
12/2/2011 7:00 AM 0.00 0.0 M M M
12/3/2011 7:00 AM 0.00 0.0 M M M windy again
12/4/2011 7:00 AM 0.00 0.0 M M M
12/5/2011 7:00 AM 0.00 0.0 M M M
12/6/2011 7:00 AM 0.00 0.0 M M M very dry conditions - low humidity. lite frost this morning
12/7/2011 7:00 AM 0.00 0.0 M M M
12/8/2011 7:00 AM 0.00 0.0 M M M more frost
12/10/2011 7:00 AM 0.00 0.0 M M M
12/11/2011 7:00 AM 0.00 0.0 M M M
12/12/2011 7:00 AM 0.00 0.0 M M M betweeen trace and .01". For the second time, the webpage won't allow me access to the 'rain total' box.
12/13/2011 7:00 AM 0.00 0.0 M M M
12/14/2011 7:00 AM 0.00 0.0 M M M
12/15/2011 7:00 AM 0.07 0.0 M M M having trouble entering precipitation totals. program will not allow it. .07" today - 12-15-11 @ 7 AM \ (edit: daily precip initially recorded as 0.00". changed to 0.07" due to comment above. P.G.)
12/16/2011 7:00 AM 0.00 0.0 M M M
12/17/2011 7:00 AM 0.00 0.0 M M M
12/18/2011 7:00 AM 0.00 0.0 M M M
12/19/2011 7:00 AM 0.00 0.0 M M M
12/20/2011 7:00 AM 0.00 0.0 M M M
12/21/2011 7:00 AM 0.00 0.0 M M M
12/22/2011 7:00 AM 0.00 0.0 M M M
12/23/2011 7:00 AM 0.00 0.0 M M M
12/24/2011 7:00 AM 0.00 0.0 M M M
12/25/2011 7:00 AM 0.00 0.0 M M M
12/26/2011 7:00 AM 0.00 0.0 M M M
12/27/2011 7:00 AM 0.00 0.0 M M M
12/30/2011 7:00 AM 0.00 0.0 M M M .01 inches - unable to log this into the usual data space
12/31/2011 7:00 AM 0.00 0.0 M M M .02 inches of drizzle - thank God this year is ending today!!!
1/1/2012 7:00 AM 0.00 0.0 M M M
1/2/2012 7:00 AM 0.00 0.0 M M M
1/3/2012 7:00 AM 0.00 0.0 M M M
1/4/2012 7:00 AM 0.00 0.0 M M M
1/5/2012 7:00 AM 0.00 0.0 M M M
1/6/2012 7:00 AM 0.00 0.0 M M M
1/7/2012 7:00 AM 0.00 0.0 M M M
1/8/2012 7:00 AM 0.00 0.0 M M M
1/9/2012 7:00 AM 0.00 0.0 M M M
1/10/2012 7:00 AM 0.00 0.0 M M M
1/11/2012 7:00 AM 0.00 0.0 M M M
1/12/2012 7:00 AM 0.00 0.0 M M M
1/13/2012 7:00 AM 0.00 0.0 M M M
1/14/2012 7:00 AM 0.00 0.0 M M M
1/15/2012 7:00 AM 0.00 0.0 M M M
1/16/2012 7:00 AM 0.00 0.0 M M M a trace fell. gauge online will not allow me to report. first frost this year.
1/17/2012 7:00 AM 0.00 0.0 M M M hard frost to remind us it's winter
1/18/2012 7:00 AM 0.00 0.0 M M M
1/19/2012 7:00 AM 0.00 0.0 M M M
1/20/2012 7:00 AM 0.00 0.0 M M M .15" accumulated. drizzle
1/21/2012 7:00 AM 0.00 0.0 M M M 1.96 inches of rainfall, most during a nighttime deluge. Am not able to post anything on the rainfall column. My computer keeps giving a 'page is loading' notation
1/22/2012 7:00 AM 0.00 0.0 M M M
1/23/2012 7:00 AM 0.00 0.0 M M M Received .57". Rainfall box will not accept my inputs. Please repair. Thank you!
1/24/2012 7:00 AM 0.00 0.0 M M M .07" of rain
1/25/2012 7:00 AM 0.00 0.0 M M M
1/26/2012 7:00 AM 0.00 0.0 M M M foggy drizzle this morning - trace
1/27/2012 7:00 AM 0.00 0.0 M M M
1/28/2012 7:00 AM 0.00 0.0 M M M
2/7/2012 7:00 AM 0.00 0.0 M M M .25"
2/8/2012 7:00 AM 0.00 0.0 M M M .03" of rain
2/9/2012 7:00 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes



Observation Date Observation Time Notes Largest Stone Size Average Stone Size Smallest Stone Size Stone Consistency Duration Minutes Durration Accuracy Damage Timing More Rain than Hail Hail Started Largest Hail Started Angle of Impact Number of Stones on Pad Distance Between Stones on Pad Depth of Stones on Ground