Station Overview Station Location
Station Number AZ-PM-231 Latitude 32.489208
Station Name Catalina 2.5 ESE Longitude -110.884141
County Pima Elevation (ft) 3348



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 18 1.17 4.66 31 4.66 31 0.00 0 0 9 2 0.0 0 0
Nov 18 0.83 0.43 30 0.43 30 0.00 0 0 1 0 0.0 0 0
Dec 18 1.29 1.50 31 1.50 31 0.00 0 0 7 1 0.0 0 0
Jan 19 1.29 1.94 31 1.94 31 0.00 0 0 5 4 0.0 0 0
Feb 19 1.18 4.12 28 4.12 28 0.00 0 0 10 1 0.0 0 1
March 19 1.14 0.80 31 0.80 31 0.00 0 0 2 2 0.0 0 0
April 19 0.40 0.23 30 0.23 30 0.00 0 0 2 3 0.0 0 0
May 19 0.25 0.42 31 0.42 31 0.00 0 0 5 0 0.0 0 0
June 19 0.30 0.00 30 0.00 30 0.00 0 0 0 0 0.0 0 0
July 19 2.10 0.89 31 0.89 31 0.00 0 0 6 6 0.0 0 0
Aug 19 2.92 1.98 30 1.98 30 0.00 0 0 6 7 0.0 0 0
Sept 19 1.40 3.31 30 3.31 30 0.00 0 0 11 3 0.0 0 0
Water Year Totals: 14.27" 20.28" 364 days 20.28" 364 0.00" 0 days 0 64 days 29 days 0.0" 0 days 1 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
10/1/2018 0.03
10/2/2018 0.42
10/3/2018 0.08
10/4/2018 0.00
10/5/2018 0.00
10/6/2018 0.00
10/7/2018 0.25
10/8/2018 0.00
10/9/2018 0.00
10/10/2018 0.00
10/11/2018 0.00
10/12/2018 0.31
10/13/2018 0.08
10/14/2018 1.74
10/15/2018 0.00
10/16/2018 1.11
10/17/2018 T
10/18/2018 0.00
10/19/2018 0.00
10/20/2018 0.00
10/21/2018 0.00
10/22/2018 T
10/23/2018 0.00
10/24/2018 0.64
10/25/2018 0.00
10/26/2018 0.00
10/27/2018 0.00
10/28/2018 0.00
10/29/2018 0.00
10/30/2018 0.00
10/31/2018 0.00
11/1/2018 0.00
11/2/2018 0.00
11/3/2018 0.00
11/4/2018 0.00
11/5/2018 0.00
11/6/2018 0.00
11/7/2018 0.00
11/8/2018 0.00
11/9/2018 0.00
11/10/2018 0.00
11/11/2018 0.00
11/12/2018 0.00
11/13/2018 0.00
11/14/2018 0.00
11/15/2018 0.00
11/16/2018 0.00
11/17/2018 0.00
11/18/2018 0.00
11/19/2018 0.00
11/20/2018 0.00
11/21/2018 0.00
11/22/2018 0.00
11/23/2018 0.00
11/24/2018 0.00
11/25/2018 0.00
11/26/2018 0.00
11/27/2018 0.00
11/28/2018 0.00
11/29/2018 0.00
11/30/2018 0.43
12/1/2018 0.03
12/2/2018 0.02
12/3/2018 0.00
12/4/2018 0.00
12/5/2018 0.00
12/6/2018 0.00
12/7/2018 0.54
12/8/2018 0.09
12/9/2018 0.00
12/10/2018 0.00
12/11/2018 0.00
12/12/2018 0.00
12/13/2018 0.00
12/14/2018 0.00
12/15/2018 0.00
12/16/2018 0.00
12/17/2018 0.00
12/18/2018 T
12/19/2018 0.00
12/20/2018 0.00
12/21/2018 0.00
12/22/2018 0.00
12/23/2018 0.00
12/24/2018 0.00
12/25/2018 0.00
12/26/2018 0.26
12/27/2018 0.01
12/28/2018 0.55
12/29/2018 0.00
12/30/2018 0.00
12/31/2018 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2019 0.73
1/2/2019 T
1/3/2019 T
1/4/2019 0.00
1/5/2019 0.00
1/6/2019 0.76
1/7/2019 0.24
1/8/2019 0.00
1/9/2019 0.00
1/10/2019 T
1/11/2019 0.00
1/12/2019 0.00
1/13/2019 0.17
1/14/2019 T
1/15/2019 0.00
1/16/2019 0.00
1/17/2019 0.00
1/18/2019 0.00
1/19/2019 0.00
1/20/2019 0.00
1/21/2019 0.00
1/22/2019 0.00
1/23/2019 0.00
1/24/2019 0.00
1/25/2019 0.00
1/26/2019 0.00
1/27/2019 0.00
1/28/2019 0.00
1/29/2019 0.00
1/30/2019 0.00
1/31/2019 0.04
2/1/2019 0.15
2/2/2019 0.00
2/3/2019 T
2/4/2019 0.74
2/5/2019 0.04
2/6/2019 0.15
2/7/2019 0.19
2/8/2019 0.00
2/9/2019 0.00
2/10/2019 0.00
2/11/2019 0.00
2/12/2019 0.00
2/13/2019 0.00
2/14/2019 0.00
2/15/2019 1.40
2/16/2019 0.11
2/17/2019 0.00
2/18/2019 0.00
2/19/2019 0.19
2/20/2019 0.00
2/21/2019 0.00
2/22/2019 0.74
2/23/2019 0.41
2/24/2019 0.00
2/25/2019 0.00
2/26/2019 0.00
2/27/2019 0.00
2/28/2019 0.00
3/1/2019 0.00
3/2/2019 0.00
3/3/2019 0.00
3/4/2019 0.00
3/5/2019 0.00
3/6/2019 0.00
3/7/2019 0.00
3/8/2019 0.00
3/9/2019 0.00
3/10/2019 0.00
3/11/2019 T
3/12/2019 0.50
3/13/2019 0.30
3/14/2019 T
3/15/2019 0.00
3/16/2019 0.00
3/17/2019 0.00
3/18/2019 0.00
3/19/2019 0.00
3/20/2019 0.00
3/21/2019 0.00
3/22/2019 0.00
3/23/2019 0.00
3/24/2019 0.00
3/25/2019 0.00
3/26/2019 0.00
3/27/2019 0.00
3/28/2019 0.00
3/29/2019 0.00
3/30/2019 0.00
3/31/2019 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2019 0.00
4/2/2019 0.00
4/3/2019 0.00
4/4/2019 0.00
4/5/2019 0.00
4/6/2019 0.03
4/7/2019 0.00
4/8/2019 0.00
4/9/2019 0.00
4/10/2019 0.00
4/11/2019 0.00
4/12/2019 0.00
4/13/2019 T
4/14/2019 0.00
4/15/2019 0.00
4/16/2019 0.00
4/17/2019 0.20
4/18/2019 0.00
4/19/2019 0.00
4/20/2019 0.00
4/21/2019 0.00
4/22/2019 0.00
4/23/2019 0.00
4/24/2019 T
4/25/2019 0.00
4/26/2019 0.00
4/27/2019 0.00
4/28/2019 0.00
4/29/2019 0.00
4/30/2019 T
5/1/2019 0.00
5/2/2019 0.00
5/3/2019 0.00
5/4/2019 0.00
5/5/2019 0.00
5/6/2019 0.00
5/7/2019 0.00
5/8/2019 0.00
5/9/2019 0.00
5/10/2019 0.00
5/11/2019 0.00
5/12/2019 0.04
5/13/2019 0.26
5/14/2019 0.00
5/15/2019 0.00
5/16/2019 0.00
5/17/2019 0.00
5/18/2019 0.00
5/19/2019 0.00
5/20/2019 0.08
5/21/2019 0.01
5/22/2019 0.00
5/23/2019 0.03
5/24/2019 0.00
5/25/2019 0.00
5/26/2019 0.00
5/27/2019 0.00
5/28/2019 0.00
5/29/2019 0.00
5/30/2019 0.00
5/31/2019 0.00
6/1/2019 0.00
6/2/2019 0.00
6/3/2019 0.00
6/4/2019 0.00
6/5/2019 0.00
6/6/2019 0.00
6/7/2019 0.00
6/8/2019 0.00
6/9/2019 0.00
6/10/2019 0.00
6/11/2019 0.00
6/12/2019 0.00
6/13/2019 0.00
6/14/2019 0.00
6/15/2019 0.00
6/16/2019 0.00
6/17/2019 0.00
6/18/2019 0.00
6/19/2019 0.00
6/20/2019 0.00
6/21/2019 0.00
6/22/2019 0.00
6/23/2019 0.00
6/24/2019 0.00
6/25/2019 0.00
6/26/2019 0.00
6/27/2019 0.00
6/28/2019 0.00
6/29/2019 0.00
6/30/2019 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2019 0.00
7/2/2019 0.00
7/3/2019 0.00
7/4/2019 0.00
7/5/2019 0.00
7/6/2019 T
7/7/2019 T
7/8/2019 T
7/9/2019 0.00
7/10/2019 0.00
7/11/2019 0.00
7/12/2019 0.00
7/13/2019 T
7/14/2019 0.29
7/15/2019 T
7/16/2019 0.00
7/17/2019 0.00
7/18/2019 0.00
7/19/2019 0.00
7/20/2019 0.00
7/21/2019 0.00
7/22/2019 0.00
7/23/2019 0.54
7/24/2019 0.02
7/25/2019 0.01
7/26/2019 T
7/27/2019 0.00
7/28/2019 0.00
7/29/2019 0.00
7/30/2019 0.02
7/31/2019 0.01
8/1/2019 T
8/2/2019 0.00
8/3/2019 0.00
8/4/2019 T
8/5/2019 0.00
8/6/2019 0.92
8/7/2019 0.03
8/8/2019 T
8/9/2019 T
8/10/2019 T
8/11/2019 0.26
8/12/2019 0.00
8/13/2019 0.00
8/14/2019 0.00
8/15/2019 0.00
8/16/2019 0.00
8/17/2019 T
8/18/2019
8/19/2019 0.00
8/20/2019 0.00
8/21/2019 0.00
8/22/2019 0.00
8/23/2019 T
8/24/2019 0.00
8/25/2019 0.00
8/26/2019 0.00
8/27/2019 0.00
8/28/2019 0.00
8/29/2019 0.74
8/30/2019 0.01
8/31/2019 0.02
9/1/2019 0.08
9/2/2019 0.02
9/3/2019 0.03
9/4/2019 T
9/5/2019 0.00
9/6/2019 0.00
9/7/2019 0.06
9/8/2019 T
9/9/2019 0.00
9/10/2019 0.00
9/11/2019 0.00
9/12/2019 0.00
9/13/2019 0.00
9/14/2019 T
9/15/2019 0.00
9/16/2019 0.00
9/17/2019 0.84
9/18/2019 0.00
9/19/2019 0.00
9/20/2019 0.00
9/21/2019 0.00
9/22/2019 0.00
9/23/2019 0.11
9/24/2019 0.14
9/25/2019 0.52
9/26/2019 0.01
9/27/2019 0.21
9/28/2019 1.29
9/29/2019 0.00
9/30/2019 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2018 7:00 AM 0.03 M M M M
10/2/2018 7:00 AM 0.42 M M M M
10/3/2018 7:00 AM 0.08 M M M M
10/4/2018 7:00 AM 0.00 0.0 M M M
10/5/2018 7:00 AM 0.00 0.0 M M M
10/6/2018 7:00 AM 0.00 0.0 M M M
10/7/2018 7:00 AM 0.25 M M M M
10/8/2018 7:00 AM 0.00 0.0 M M M
10/9/2018 7:00 AM 0.00 0.0 M M M
10/10/2018 7:00 AM 0.00 0.0 M M M
10/11/2018 7:00 AM 0.00 0.0 M M M
10/12/2018 7:00 AM 0.31 M M M M CoCo gauge, 0.29 inches in NWS-style 8-inch gauge, 0.27 indicated by Davis TB. R- OCNLY R-- over several hours.
10/13/2018 7:00 AM 0.08 M M M M R-- for several hours after ob time. 0.06 inches in NWS style gauge.
10/14/2018 7:00 AM 1.74 M M M M Rained most of 24 h, R-, L-, R and briefly R+. Windy 10-20 mph in the afternoon rain. 1.74 inches in ground-mounted CoCo gauge, 1.62 inches in NWS-style 8-inch gauge.
10/15/2018 7:00 AM 0.00 0.0 M M M
10/16/2018 7:00 AM 1.11 M M M M Fell between 8 PM and 5 AM in three major pulses Several LTG, including one overhead at 1:30 AM followed by 10 min RW+. 1.11 inches in CoCo gauge, 1.03 inches in NWS 8-inch gauge, but only 0.74 inches indicated by Davis TB. Gusty winds at times during rain; probably contributed to losses.
10/17/2018 7:00 AM T M M M M A few isolated drops, detected on car, fell after dark.
10/18/2018 7:00 AM 0.00 0.0 M M M
10/19/2018 7:00 AM 0.00 0.0 M M M
10/20/2018 7:00 AM 0.00 0.0 M M M
10/21/2018 7:00 AM 0.00 0.0 M M M
10/22/2018 7:00 AM T M M M M Afternoon sprinkles amid surrounding weak shafted TSTMS.
10/23/2018 7:00 AM 0.00 0.0 M M M
10/24/2018 7:00 AM 0.64 M M M M Fell in TSTMs during mid-afternoon. OCNL LTG. 0.48 indicated by Davis TB. NWS gauge not available due to not emptying it after last rain!
10/25/2018 7:00 AM 0.00 0.0 M M M
10/26/2018 7:00 AM 0.00 0.0 M M M
10/27/2018 7:00 AM 0.00 0.0 M M M
10/28/2018 7:00 AM 0.00 0.0 M M M
10/29/2018 7:00 AM 0.00 0.0 M M M
10/30/2018 7:00 AM 0.00 0.0 M M M
10/31/2018 7:00 AM 0.00 0.0 M M M
11/1/2018 7:00 AM 0.00 0.0 M M M
11/2/2018 7:00 AM 0.00 0.0 M M M
11/3/2018 7:00 AM 0.00 0.0 M M M
11/4/2018 7:00 AM 0.00 0.0 M M M
11/5/2018 7:00 AM 0.00 0.0 M M M
11/6/2018 7:00 AM 0.00 0.0 M M M
11/7/2018 7:00 AM 0.00 0.0 M M M
11/8/2018 7:00 AM 0.00 0.0 M M M
11/9/2018 7:00 AM 0.00 0.0 M M M
11/10/2018 7:00 AM 0.00 0.0 M M M
11/11/2018 7:00 AM 0.00 0.0 M M M
11/12/2018 7:00 AM 0.00 0.0 M M M
11/13/2018 7:00 AM 0.00 0.0 M M M
11/14/2018 7:00 AM 0.00 0.0 M M M
11/15/2018 7:00 AM 0.00 0.0 M M M
11/16/2018 7:00 AM 0.00 0.0 M M M
11/17/2018 7:00 AM 0.00 0.0 M M M
11/18/2018 7:00 AM 0.00 0.0 M M M
11/19/2018 7:00 AM 0.00 0.0 M M M
11/20/2018 7:00 AM 0.00 0.0 M M M
11/21/2018 7:00 AM 0.00 0.0 M M M
11/22/2018 7:00 AM 0.00 0.0 M M M
11/23/2018 7:00 AM 0.00 0.0 M M M
11/24/2018 7:00 AM 0.00 0.0 M M M
11/25/2018 7:00 AM 0.00 0.0 M M M
11/26/2018 7:00 AM 0.00 0.0 M M M
11/27/2018 7:00 AM 0.00 0.0 M M M
11/28/2018 7:00 AM 0.00 0.0 M M M
11/29/2018 7:00 AM 0.00 0.0 M M M
11/30/2018 7:00 AM 0.43 M M M M TSTMS with brief RW+ begin just before 3 AM local. 0.42 inches in NWS-style 8-inch gauge, 0.34 inches indicated by Davis TB.
12/1/2018 7:00 AM 0.03 M M M M Intermittent spills of small drops during most of later morning into early afternoon. Measurable fell just after dark, and was just discovered here at 11:40 am!
12/2/2018 7:00 AM 0.02 M M M M Fell between 11 PM and 11:30 PM. 0.02 in CoCo and NWS gauges, 0.01 indicated by Davis Vantage Pro TB.
12/3/2018 7:00 AM 0.00 0.0 M M M
12/4/2018 7:00 AM 0.00 0.0 M M M
12/5/2018 7:00 AM 0.00 0.0 M M M
12/6/2018 7:00 AM 0.00 0.0 M M M
12/7/2018 7:00 AM 0.54 M M M M Fell in two main bands after 6PM with thunder at 1:48 AM. 0.54 inches in CoCo gauge, 0.52 inches in NWS gauge. Davis TB data unavailable due to outage. Afternoon spkls.
12/8/2018 7:00 AM 0.09 M M M M Fell late morning into mid-afternoon from dying mesoscale Cb complex moved in from SW. 0.09 in CoCo gauge, 0.07 inches in NWS style 8-inch gauge. Davis TB was offline and not available.
12/9/2018 7:00 AM 0.00 0.0 M M M
12/10/2018 7:00 AM 0.00 0.0 M M M
12/11/2018 7:00 AM 0.00 0.0 M M M
12/12/2018 7:00 AM 0.00 0.0 M M M
12/13/2018 7:00 AM 0.00 0.0 M M M
12/14/2018 7:00 AM 0.00 0.0 M M M
12/15/2018 7:00 AM 0.00 0.0 M M M
12/16/2018 7:00 AM 0.00 0.0 M M M
12/17/2018 7:00 AM 0.00 0.0 M M M
12/18/2018 7:00 AM T M M M M Based on finding a few drop images in dust on back car window--is supported in radar imagery.
12/19/2018 7:00 AM 0.00 0.0 M M M
12/20/2018 7:00 AM 0.00 0.0 M M M
12/21/2018 7:00 AM 0.00 0.0 M M M
12/22/2018 7:00 AM 0.00 0.0 M M M
12/23/2018 7:00 AM 0.00 0.0 M M M
12/24/2018 7:00 AM 0.00 0.0 M M M
12/25/2018 7:00 AM 0.00 0.0 M M M
12/26/2018 7:00 AM 0.26 M M M M Fell as steady R- 11:45 PM to about 12:30 AM, no cellular structure suggested. 0.26 inc CoCo gauge, 0.24 inches in NWS 8-inch gauge, 0.20 indicated by Davis TB.
12/27/2018 7:00 AM 0.01 M M M M Trace in NWS gauge, 0.01 indicated by Davis TB. Fell in numerous light sprinkles during the day to mid-afternoon
12/28/2018 7:00 AM 0.55 M M M M 0.55 inches in CoCo gauge, 0.51 in NWS -style 8-inch gauge, 0.49 indicated in Davis TB. Began in late afternoon, ended just before 3 AM in RW--.
12/29/2018 7:00 AM 0.00 0.0 M M M
12/30/2018 7:00 AM 0.00 0.0 M M M
12/31/2018 7:00 AM 0.00 0.0 M M M
1/1/2019 7:00 AM 0.73 M M M M Began as "measuring rain" after a few hours of spkls at 7:30 PM. Turned to snow overnight with 2 inches depth measured at dawn on various surfaces. 0.66 inched melted into NWS 8-inch gauge, 0.53 inches indicated by Davis TB after melting. Breezy most of event so wind may have compromised some measurements, especially the Davis TB.
1/2/2019 7:00 AM T M M M M Several ice crystals/tiny snowflakes between 3 and 5 AM. Concentration, maybe 1/ 100 m-3
1/3/2019 7:00 AM T M M M M A few snow grains from lofted Stratocu deck in morning.
1/4/2019 7:00 AM 0.00 0.0 M M M
1/5/2019 7:00 AM 0.00 0.0 M M M
1/6/2019 7:00 AM 0.76 M M M M Only a few hundredths before midnight. Steady rain started just after 1 AM. 0.76 in CoCo gauge, 0.74 in 8-inch NWS gauge, but only 0.56 inches indicated by Davis TB. Virtually no wind during this rain.
1/7/2019 7:00 AM 0.24 M M M M Fell between 7 am and noon. ).24 in both the CoCo and NWS gauges, 0.21 inches indicated by Davis TB.
1/8/2019 7:00 AM 0.00 0.0 M M M
1/9/2019 7:00 AM 0.00 0.0 M M M SPKLS in area
1/10/2019 7:00 AM T M M M M Several sprinkles throughout 24 h period, last one just before ob time.
1/11/2019 7:00 AM 0.00 0.0 M M M
1/12/2019 7:00 AM 0.00 0.0 M M M
1/13/2019 7:00 AM 0.17 M M M M Began a few minutes before midnight and continued in light pulses through about 4:30 AM. 0.15 inches in NWS gauge, 0.13 inches indicated by Davis TB.
1/14/2019 7:00 AM T M M M M RW- - about 10:20 AM.
1/15/2019 7:00 AM 0.00 0.0 M M M
1/16/2019 7:00 AM 0.00 0.0 M M M
1/17/2019 7:00 AM 0.00 0.0 M M M
1/18/2019 7:00 AM 0.00 0.0 M M M
1/19/2019 7:00 AM 0.00 0.0 M M M
1/20/2019 7:00 AM 0.00 0.0 M M M
1/21/2019 7:00 AM 0.00 0.0 M M M
1/22/2019 7:00 AM 0.00 0.0 M M M
1/23/2019 7:00 AM 0.00 0.0 M M M
1/24/2019 7:00 AM 0.00 0.0 M M M
1/25/2019 7:00 AM 0.00 0.0 M M M
1/26/2019 7:00 AM 0.00 0.0 M M M
1/27/2019 7:00 AM 0.00 0.0 M M M
1/28/2019 7:00 AM 0.00 0.0 M M M
1/29/2019 7:00 AM 0.00 0.0 M M M
1/30/2019 7:00 AM 0.00 0.0 M M M
1/31/2019 7:00 AM 0.04 0.0 M M M Fell as TSTM to N departed. 0.04 in both CoCo and NWS 8-inch gauge.
2/1/2019 7:00 AM 0.15 M M M M TRW- at time of ob, 7:04 AM. 0.15 inches in CoCo gauge, 0.14 inches in NWS 8-inch gauge, 0.12 inches indicated by Davis TB. First rain at 1:39 AM was misty, warm rain like with low VSBY. Did not measure, was short-lived. Remaining showers were brief, but hard, suggesting near overhead development.
2/2/2019 7:00 AM 0.00 0.0 M M M
2/3/2019 7:00 AM T M M M M SPKLS so far.
2/4/2019 7:00 AM 0.74 M M M M CoCo gauge total. Most fell during day, 0.12 inches after midnight. 0.72 inches in NWS gauge. Davis TB had malfunction during day.
2/5/2019 7:00 AM 0.04 M M M M Numerous RW- - through midnight, including some L-. 0.04 in CoCo gauge, 0.03 inches in NWS 8-inch gauge.
2/6/2019 7:00 AM 0.15 M M M M Fell after 3 AM. 0.15 inches in CoCo gauge, 0.16 inches in NWS-style gauge, 0.11 indicated by Davis TB.
2/7/2019 7:00 AM 0.19 T M M M R- changed to R-S--, briefly S-, VSBY 1/2. Trace of snow on ground. 0.19 in Coco gauge, 0.18 inches in NWS-style 8 inch gauge. 0.17 inches indicated by Davis TB.
2/8/2019 7:00 AM 0.00 0.0 M M M
2/9/2019 7:00 AM 0.00 0.0 M M M
2/10/2019 7:00 AM 0.00 0.0 M M M
2/11/2019 7:00 AM 0.00 0.0 M M M
2/12/2019 7:00 AM 0.00 0.0 M M M
2/13/2019 7:00 AM 0.00 0.0 M M M
2/14/2019 7:00 AM 0.00 0.0 M M M
2/15/2019 7:00 AM 1.40 M M M M Rain began after 4 PM. Intermittent through ob time. 1.36 inches in NWS 8-inch gauge. Davis TB out of commission.
2/16/2019 7:00 AM 0.11 M M M M Fell before 11 AM in occasionally thick showers suggestive of warm rain processes. 0.11 inches in ground mounted CoCo gauge, 0.10 inches in NWS gauge.
2/17/2019 7:00 AM 0.00 0.0 M M M
2/18/2019 7:00 AM 0.00 0.0 M M M
2/19/2019 7:00 AM 0.19 M M M M Rain, mixed with some snow, fell before midnight. 0.19 inches in CoCo gauge, 0.17 inches in the NWS-style 8-inch gauge. 0.14 inches indicated by Davis TB.
2/20/2019 7:00 AM 0.00 0.0 M M M
2/21/2019 7:00 AM 0.00 0.0 M M M
2/22/2019 7:00 AM 0.74 M M 2.0 M CoCo gauge blew over during 50 mph gusts, total from NWS-8 inch gauge and includes 2 inches of snow on the ground. Most of rain fell after dark.
2/23/2019 7:00 AM 0.41 M M M M From melted snow in NWS-8 inch style gauge. Snowed moderately in the morning with a maximum accumulation of 4 inches. Continued to snow from convective bands in the late morning through evening, snow occasionally, but very briefly heavy.
2/24/2019 7:00 AM 0.00 0.0 M M M
2/25/2019 7:00 AM 0.00 0.0 M M M
2/26/2019 7:00 AM 0.00 0.0 M M M
2/27/2019 7:00 AM 0.00 0.0 M M M
2/28/2019 7:00 AM 0.00 0.0 M M M
3/1/2019 7:00 AM 0.00 0.0 M M M
3/2/2019 7:00 AM 0.00 0.0 M M M
3/3/2019 7:00 AM 0.00 0.0 M M M
3/4/2019 7:00 AM 0.00 0.0 M M M
3/5/2019 7:00 AM 0.00 0.0 M M M
3/6/2019 7:00 AM 0.00 0.0 M M M
3/7/2019 7:00 AM 0.00 0.0 M M M
3/8/2019 7:00 AM 0.00 0.0 M M M
3/9/2019 7:00 AM 0.00 0.0 M M M
3/10/2019 7:00 AM 0.00 0.0 M M M
3/11/2019 7:00 AM T M M M M Fell just before dawn. 0.02 inches in NWS gauge likely from a Feb event since CoCo gauge was dry. Drip line off roof from event due to patchy mid-level ACCAS and micro-hi-based Cbs in bands.
3/12/2019 7:00 AM 0.50 M M M M 0.48 in NWS 8-inch style gauge. 0.39 inches indicated by Davis Vantage Pro TB. Measurable amounts fell after midnight. R-- at time of ob.
3/13/2019 7:00 AM 0.30 M M M M 0.27 inches in NWS day. Windy with RW- off and on all day, and again just before ob time. Power outage killed Davis TB and data.
3/14/2019 7:00 AM T 0.0 M M M
3/15/2019 7:00 AM 0.00 0.0 M M M
3/16/2019 7:00 AM 0.00 0.0 M M M
3/17/2019 7:00 AM 0.00 0.0 M M M
3/18/2019 7:00 AM 0.00 0.0 M M M
3/19/2019 7:00 AM 0.00 0.0 M M M
3/20/2019 7:00 AM 0.00 0.0 M M M
3/21/2019 7:00 AM 0.00 0.0 M M M
3/22/2019 7:00 AM 0.00 0.0 M M M
3/23/2019 7:00 AM 0.00 0.0 M M M
3/24/2019 7:00 AM 0.00 0.0 M M M
3/25/2019 7:00 AM 0.00 0.0 M M M
3/26/2019 7:00 AM 0.00 0.0 M M M
3/27/2019 7:00 AM 0.00 0.0 M M M
3/28/2019 7:00 AM 0.00 0.0 M M M
3/29/2019 7:00 AM 0.00 0.0 M M M
3/30/2019 7:00 AM 0.00 0.0 M M M
3/31/2019 7:00 AM 0.00 0.0 M M M
4/1/2019 7:00 AM 0.00 0.0 M M M
4/2/2019 7:00 AM 0.00 0.0 M M M
4/3/2019 7:00 AM 0.00 0.0 M M M
4/4/2019 7:00 AM 0.00 0.0 M M M
4/5/2019 7:00 AM 0.00 0.0 M M M
4/6/2019 7:00 AM 0.03 M M M M 0.02 inches in NWS-style gauge, and 0.02 indicated by Davis Vanatage Pro TB. Began falling at 12:45 AM. Ended about 1 AM.
4/7/2019 7:00 AM 0.00 0.0 M M M
4/8/2019 7:00 AM 0.00 0.0 M M M
4/9/2019 7:00 AM 0.00 0.0 M M M
4/10/2019 7:00 AM 0.00 0.0 M M M
4/11/2019 7:00 AM 0.00 0.0 M M M
4/12/2019 7:00 AM 0.00 0.0 M M M Close in virga, echo overhead, but NO DROPS!
4/13/2019 7:00 AM T M M M M A few afternoon drops from hi-based Cu embedded in As.
4/14/2019 7:00 AM 0.00 0.0 M M M
4/15/2019 7:00 AM 0.00 0.0 M M M
4/16/2019 7:00 AM 0.00 0.0 M M M
4/17/2019 7:00 AM 0.20 M M M M 0.20 inches in CoCo gauge, 0.19 inches in 8-inch NWS type gauge, 0.16 inches indicated by Davis Vantage Pro TB. Late aftn stratiform rain, 0.08 inches by Davis, hard, convective rain doubled that between 5 AM and 5:10 AM.
4/18/2019 7:00 AM 0.00 0.0 M M M
4/19/2019 7:00 AM 0.00 0.0 M M M
4/20/2019 7:00 AM 0.00 0.0 M M M
4/21/2019 7:00 AM 0.00 0.0 M M M
4/22/2019 7:00 AM 0.00 0.0 M M M
4/23/2019 7:00 AM 0.00 0.0 M M M
4/24/2019 7:00 AM T M M M M A large drop afternoon spkl.
4/25/2019 7:00 AM 0.00 0.0 M M M
4/26/2019 7:00 AM 0.00 0.0 M M M
4/27/2019 7:00 AM 0.00 0.0 M M M
4/28/2019 7:00 AM 0.00 0.0 M M M
4/29/2019 7:00 AM 0.00 0.0 M M M
4/30/2019 7:00 AM T M M M M Several SPKLS during AFTN. TSTM passed W-N 3:30 PM.
5/1/2019 7:00 AM 0.00 0.0 M M M
5/2/2019 7:00 AM 0.00 0.0 M M M
5/3/2019 7:00 AM 0.00 0.0 M M M
5/4/2019 7:00 AM 0.00 0.0 M M M
5/5/2019 7:00 AM 0.00 0.0 M M M
5/6/2019 7:00 AM 0.00 0.0 M M M
5/7/2019 7:00 AM 0.00 0.0 M M M
5/8/2019 7:00 AM 0.00 0.0 M M M
5/9/2019 7:00 AM 0.00 0.0 M M M
5/10/2019 7:00 AM 0.00 0.0 M M M
5/11/2019 7:00 AM 0.00 0.0 M M M
5/12/2019 7:00 AM 0.04 M M M M Fell just before midnight. 0.04 in both the CoCo and NWS gauges, and also indicated by Davis Vantage Pro TB.
5/13/2019 7:00 AM 0.26 M M M M Nearly all fell during TSTM between 1:30 2:00 PM. 0.23 inches in NWS subject to wind loss yesterday, 0.22 inches indicated by Davis TB.
5/14/2019 7:00 AM 0.00 0.0 M M M
5/15/2019 7:00 AM 0.00 0.0 M M M
5/16/2019 7:00 AM 0.00 0.0 M M M
5/17/2019 7:00 AM 0.00 0.0 M M M
5/18/2019 7:00 AM 0.00 0.0 M M M
5/19/2019 7:00 AM 0.00 0.0 M M M
5/20/2019 7:00 AM 0.08 M M M M Occurred in several minute shower which later became a TSTM to the NE. Two thunder episodes is all. 0.07 inches in NWS 8-inch gauge, and 0.07 also indicated by Davis TB. Windshft to NW and temperature drop as shower hit.
5/21/2019 7:00 AM 0.01 M M M M Fell mainly as passing SPKLS most of afternoon through dusk from modest glaciating Cu ("Cumulonimbus mediocris" as I would term them). Trace in NWS gauge, 0.01 tip by Davis TB.
5/22/2019 7:00 AM 0.00 0.0 M M M
5/23/2019 7:00 AM 0.03 M M M M Fell for just minutes just after 4:30 AM. 0.03 in CoCo gauge, 0.02 in NWS 8-inch gauge, and 0.02 inches indicated by Davis Vantage Pro TB.
5/24/2019 7:00 AM 0.00 0.0 M M M
5/25/2019 7:00 AM 0.00 0.0 M M M
5/26/2019 7:00 AM 0.00 0.0 M M M
5/27/2019 7:00 AM 0.00 0.0 M M M
5/28/2019 7:00 AM 0.00 0.0 M M M
5/29/2019 7:00 AM 0.00 0.0 M M M
5/30/2019 7:00 AM 0.00 0.0 M M M
5/31/2019 7:00 AM 0.00 0.0 M M M
6/1/2019 7:00 AM 0.00 0.0 M M M
6/2/2019 7:00 AM 0.00 0.0 M M M
6/3/2019 7:00 AM 0.00 0.0 M M M
6/4/2019 7:00 AM 0.00 0.0 M M M
6/5/2019 7:00 AM 0.00 0.0 M M M
6/6/2019 7:00 AM 0.00 0.0 M M M
6/7/2019 7:00 AM 0.00 0.0 M M M
6/8/2019 7:00 AM 0.00 0.0 M M M
6/9/2019 7:00 AM 0.00 0.0 M M M
6/10/2019 7:00 AM 0.00 0.0 M M M
6/11/2019 7:00 AM 0.00 0.0 M M M
6/12/2019 7:00 AM 0.00 0.0 M M M
6/13/2019 7:00 AM 0.00 0.0 M M M
6/14/2019 7:00 AM 0.00 0.0 M M M
6/15/2019 7:00 AM 0.00 0.0 M M M
6/16/2019 7:00 AM 0.00 0.0 M M M
6/17/2019 7:00 AM 0.00 0.0 M M M
6/18/2019 7:00 AM 0.00 0.0 M M M
6/19/2019 7:00 AM 0.00 0.0 M M M
6/20/2019 7:00 AM 0.00 0.0 M M M
6/21/2019 7:00 AM 0.00 0.0 M M M
6/22/2019 7:00 AM 0.00 0.0 M M M
6/23/2019 7:00 AM 0.00 0.0 M M M
6/24/2019 7:00 AM 0.00 0.0 M M M
6/25/2019 7:00 AM 0.00 0.0 M M M
6/26/2019 7:00 AM 0.00 0.0 M M M
6/27/2019 7:00 AM 0.00 0.0 M M M
6/28/2019 7:00 AM 0.00 0.0 M M M
6/29/2019 7:00 AM 0.00 0.0 M M M
6/30/2019 7:00 AM 0.00 0.0 M M M
7/1/2019 7:00 AM 0.00 0.0 M M M
7/2/2019 7:00 AM 0.00 0.0 M M M
7/3/2019 7:00 AM 0.00 0.0 M M M
7/4/2019 7:00 AM 0.00 0.0 M M M
7/5/2019 7:00 AM 0.00 0.0 M M M
7/6/2019 7:00 AM T M M M M Very sparse, small drops between 7:25-7:35 PM. Did not last 5 min, and wouldn't have known it had occurred had I not been outside looking for a SPKL.
7/7/2019 7:00 AM T M M M M Scattered small drops from DSPTG CB. between 3:30 and 4 PM.
7/8/2019 7:00 AM T M M M M Two SPKLS in the afternoon. The second, close to 5 PM, consisted of HUGE drops that fell for just seconds, but rattled the roof almost like hail.
7/9/2019 7:00 AM 0.00 0.0 M M M
7/10/2019 7:00 AM 0.00 0.0 M M M
7/11/2019 7:00 AM 0.00 0.0 M M M
7/12/2019 7:00 AM 0.00 0.0 M M M
7/13/2019 7:00 AM T M M M M Two periods of drops, first 12:15 from Cu mediocris overhead trailing off Mt. Lemmon "plop a drop"; second was more prolonged from wide DSPTG shallow convection drifting off the Catalinas. No real shafts seen.
7/14/2019 7:00 AM 0.29 M M M M Temperature dropped from 105° to 75°F as rain hit about 5 PM, ended just after 6 PM with several spells of RW. One very close strike, <200 yes. Winds peaked before rain est. 50 mph.
7/15/2019 7:00 AM T M M M M A few drops after 12 Noon, and again in evening.
7/16/2019 7:00 AM 0.00 0.0 M M M OCNL THUNDER OMTNS AFTER 2 PM, no drops
7/17/2019 7:00 AM 0.00 0.0 M M M
7/18/2019 7:00 AM 0.00 0.0 M M M
7/19/2019 7:00 AM 0.00 0.0 M M M
7/20/2019 7:00 AM 0.00 0.0 M M M
7/21/2019 7:00 AM 0.00 0.0 M M M
7/22/2019 7:00 AM 0.00 0.0 M M M
7/23/2019 7:00 AM 0.54 M M M M Thunder heard beginning about 1 PM and CONTUD into night. Three rain periods, first as early Cbs drifted off Mt. Lemmon and died (0.06 or so), then the evening TSTM with nearly CONTUS LTG, two very close strikes. Finally, separate RW+ about 10 PM. Davis TB out of service during that time. 0.54 inches in CoCo gauge, 0.52 inches in 8-inch NWS type gauge, but only 0.32 inches indicated by Davis Vantage Pro TB due to power outage.
7/24/2019 7:00 AM 0.02 M M M M Fell in a brief late aFTN shower. No T yesterday. 0.02 inches in CoCo gauge, 0.,02 inches in NWS 8-inch gauge, 0.01 inches Indicated by Davis TB.
7/25/2019 7:00 AM 0.01 M M M M Brief very large drop (5-6mm) shower about 4 PM from overhang drifting off Catalinas.
7/26/2019 7:00 AM T M M M M Two small drop SPKLS, 1:50 PM and 4:45 PM from overhanging and debris clouds from Cbs on the Catalinas.
7/27/2019 7:00 AM 0.00 0.0 M M M
7/28/2019 7:00 AM 0.00 0.0 M M M
7/29/2019 7:00 AM 0.00 0.0 M M M
7/30/2019 7:00 AM 0.02 M M M M Fell between 12:50 and 1:15 AM as RW-. RW-- during evening. 0.02 inches in CoCo and NWS style gauge; oddly, 0.04 inches indicated by Davis TB. The latter is always less.
7/31/2019 7:00 AM 0.01 M M M M Evening period of RW- - -. Only the CoCo gauge reported measurable. Davis did not tip, NWS gauge did not reach 0.005 inches, but had SOMETHING in it.
8/1/2019 7:00 AM T M M M M SPKL just before 5 PM from debris cloud.
8/2/2019 7:00 AM 0.00 0.0 M M M
8/3/2019 7:00 AM 0.00 0.0 M M M
8/4/2019 7:00 AM T M M M M
8/5/2019 7:00 AM 0.00 0.0 M M M
8/6/2019 7:00 AM 0.92 M M M M TRW++ at 4:40 PM from small overhead cell, 0.57 inches in NWS for that storm element that appeared to consist of two cells unloading from overhead. Did not check CoCo gauge. 0.86 total in NWS gauge. Additional more stratiform rain moved in during evening ending about 9 PM. INTMT R- - - continues this morning from heavy mid-level cloud layer.
8/7/2019 7:00 AM 0.03 M M M M 0.02 in NWS style gauge, 0.01 indicated by Davis TB. 0.18 inches ran into the TB late yesterday morning, thus yesterday's total was 0.79 inches in that sensor. TSTM yesterday afternoon 5 PM, core passed E.
8/8/2019 7:00 AM T M M M M Afternoon spell from nearby Cb
8/9/2019 7:00 AM T M M M M Single small Cu dropped a couple of drops. Would not have known if wasn't outside. Was verified on WU radar depiction.
8/10/2019 7:00 AM T M M M M Morning SPKLS from mid-level stratiform deck
8/11/2019 7:00 AM 0.26 M M M M 0.27 in NWS gauge, 0.26 inches in CoCo, and 0.24 inches indicated by Davis TB. Two periods of rain, first in mid-afternoon to early evening (R- to R- -) and the showers after midnight, several groups, OCNLY RW, ending before on time. Davis say 0.10 in first episode, 0.14 inches in 2nd.
8/12/2019 7:00 AM 0.00 0.0 M M M
8/13/2019 7:00 AM 0.00 0.0 M M M
8/14/2019 7:00 AM 0.00 0.0 M M M
8/15/2019 7:00 AM 0.00 0.0 M M M
8/16/2019 7:00 AM 0.00 0.0 M M M
8/17/2019 7:00 AM T M M M M Fell after dark from high based Sc
8/19/2019 7:00 AM 0.00 0.0 M M M
8/20/2019 7:00 AM 0.00 0.0 M M M
8/21/2019 7:00 AM 0.00 0.0 M M M
8/22/2019 7:00 AM 0.00 0.0 M M M
8/23/2019 7:00 AM T M M M M A few new drop images on car parked outside overnight, seems to be supported in Meteostar radar overnight loop.
8/24/2019 7:00 AM 0.00 0.0 M M M
8/25/2019 7:00 AM 0.00 0.0 M M M
8/26/2019 7:00 AM 0.00 0.0 M M M
8/27/2019 7:00 AM 0.00 0.0 M M M
8/28/2019 7:00 AM 0.00 0.0 M M M
8/29/2019 7:00 AM 0.74 M M M M Violent late afternoon TSTM, 4:30-5:30 PM with a few hundredths of stratiform rain later in the evening. Wind gusted in puffs to estimated 55-60 mph, Davis measured 47 mph. 0.74 in CoCo gauge, 0.72 in NWS-style gauge, 0.70 indicated by Davis TB.
8/30/2019 7:00 AM 0.01 M M M M
8/31/2019 7:00 AM 0.02 M M M M Two rain events, first on edge of strong shaft ENE, second was a mild TSTM this morning after 5 AM. Davis TB did not tip. 0.02 inches in NWS 8-inch gauge, 0.02 inches in CoCo gauge.
9/1/2019 7:00 AM 0.08 M M M M Few minute RW+ at 6 PM. 0.08 in Coco gauge, NWS-8 inch gauge, and 0.07 inches indicated by Davis TB.
9/2/2019 7:00 AM 0.02 M M M M Evening TSTM complex mainly missed this site. 0.02 inches in CoCo gauge, 0.01 inches in NWS gauge, Davis TB did not tip.
9/3/2019 7:00 AM 0.03 M M M M OCNL RW- - from Cu long, small Cbs trailing off Mt Lemmon over the house late morning through early AFTN. One TSTM. 0.03 in CoCo gauge, 0.03 in NWS gauge, 0.01 indicated by Davis TB.
9/4/2019 7:00 AM T M M M M RW- - from edge of TSTM passing along the Catalinas 4-4:30 PM
9/5/2019 7:00 AM 0.00 0.0 M M M
9/6/2019 7:00 AM 0.00 0.0 M M M
9/7/2019 7:00 AM 0.06 M M M M Violent short-lived storm just after 3 PM. Rain started from near overhead and relatively small Cu cong transitioning to Cb. Winds measured to 36 mph but damage suggests 50 mph+ (I was gone during this momentary event, dang). Brief RW+ 0.06 measured/indicated in all three gauges.
9/8/2019 7:00 AM T M M M M A few scattered drops just before ob time from higher-based Sc. Weak Cbs and shafting DSNT S, NE.
9/9/2019 7:00 AM 0.00 0.0 M M M
9/10/2019 7:00 AM 0.00 0.0 M M M
9/11/2019 7:00 AM 0.00 0.0 M M M
9/12/2019 7:00 AM 0.00 0.0 M M M
9/13/2019 7:00 AM 0.00 0.0 M M M
9/14/2019 7:00 AM T M M M M Few, small isolated drops from mounding Cu cong 2:30-2:40 PM. Estimated bases 14 k MSL, way up there.
9/15/2019 7:00 AM 0.00 0.0 M M M
9/16/2019 7:00 AM 0.00 0.0 M M M
9/17/2019 7:00 AM 0.84 M M M M TRW+ began at 4:20 PM and withered into a gentle, long-lived stratiform rain that persisted until after dark (7 PM). 0.61 inches fell in NWS style gauge from heavy event, remainder of total from stratiform rain. 0.73 inches in NWS gauge, usually large difference from CoCo gauge (0.84 inches). Davis TB out of service.
9/18/2019 7:00 AM 0.00 0.0 M M M
9/19/2019 7:00 AM 0.00 0.0 M M M
9/20/2019 7:00 AM 0.00 0.0 M M M
9/21/2019 7:00 AM 0.00 0.0 M M M
9/22/2019 7:00 AM 0.00 0.0 M M M
9/23/2019 7:00 AM 0.11 M M M M Evening shower about 7:30 PM. 0.11 inches in CoCo gauge, 0.10 inches in NWS0style 8 inch gauge, 0.06 inches indicated by Davis TB.
9/24/2019 7:00 AM 0.14 M M M M Accumulating rain just underway last hour. 0.13 inches in NWS-style 8-inch gauge, 0.12 inches indicated by Davis Vantage Pro 2 TB.
9/25/2019 7:00 AM 0.52 M M M M 0.38 inches in steady morning rain yesterday after ob time, 0.14 in steady light rain before dawn this morning. 0.50 inches in 8-inch NWS style gauge, 0.47 indicated by Davis TB.
9/26/2019 7:00 AM 0.01 M M M M Mid-morning RW- -, SPKL overnight. Not measurable in NWS gauge, nor did Davis TB tip.
9/27/2019 7:00 AM 0.21 M M M M 0.21 inches in both CoCo and NWS-replica 8-inch gauge. Davis indicated 0.18 inches. 0.03 inches fell between 11 PM and midnight according to Davis TB. Nice moderate rain shower developed almost overhead with RW between 5:30 and 6 AM.
9/28/2019 7:00 AM 1.29 M M M M 1.29 in both NWS and CoCo gauge, 1.07 inches indicated by Davis TB. Rain fell in 50 min about 8:20 and 9:10 AM.
9/29/2019 7:00 AM 0.00 0.0 M M M
9/30/2019 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