Station Overview Station Location
Station Number CA-MN-5 Latitude 37.5569
Station Name Mammoth Lakes 16.3 ESE Longitude -118.705381
County Mono Elevation (ft) 7068



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 0.52 0.34 3 0.34 3 0.00 0 0 3 0 0.0 0 0
Nov 18 0.90 0.97 3 0.97 3 0.00 0 0 3 0 7.5 2 2
Dec 18 1.41 0.46 3 0.46 3 0.00 0 0 3 0 5.0 3 3
Jan 19 1.78 3.12 4 3.12 4 0.00 0 0 4 0 19.2 5 5
Feb 19 1.93 3.02 8 3.02 8 0.00 0 0 8 0 31.0 8 8
March 19 1.56 3.50 3 3.50 3 0.00 0 0 3 0 10.8 3 3
April 19 0.40 0.10 2 0.10 2 0.00 0 0 2 0 0.0 0 2
May 19 0.55 1.69 5 1.69 5 0.00 0 0 5 0 0.0 0 0
June 19 0.37 0.18 2 0.18 2 0.00 0 0 2 0 0.0 0 0
July 19 0.37 0.20 1 0.20 1 0.00 0 0 1 0 0.0 0 0
Aug 19 0.28 0.20 1 0.20 1 0.00 0 0 1 0 0.0 0 0
Sept 19 0.41 0.17 2 0.17 2 0.00 0 0 2 0 0.0 0 0
Water Year Totals: 10.48" 13.95" 37 days 13.95" 37 0.00" 0 days 0 37 days 0 days 73.5" 21 days 23 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
10/2/2018
10/3/2018 0.21
10/4/2018 0.06
10/5/2018
10/6/2018
10/7/2018 0.07
10/8/2018
10/9/2018
10/10/2018
10/11/2018
10/12/2018
10/13/2018
10/14/2018
10/15/2018
10/16/2018
10/17/2018
10/18/2018
10/19/2018
10/20/2018
10/21/2018
10/22/2018
10/23/2018
10/24/2018
10/25/2018
10/26/2018
10/27/2018
10/28/2018
10/29/2018
10/30/2018
10/31/2018
11/1/2018
11/2/2018
11/3/2018
11/4/2018
11/5/2018
11/6/2018
11/7/2018
11/8/2018
11/9/2018
11/10/2018
11/11/2018
11/12/2018
11/13/2018
11/14/2018
11/15/2018
11/16/2018
11/17/2018
11/18/2018
11/19/2018
11/20/2018
11/21/2018
11/22/2018 0.40
11/23/2018
11/24/2018
11/25/2018
11/26/2018
11/27/2018
11/28/2018 0.16
11/29/2018 0.41
11/30/2018
12/1/2018 0.21
12/2/2018
12/3/2018
12/4/2018
12/5/2018 0.15
12/6/2018 0.10
12/7/2018
12/8/2018
12/9/2018
12/10/2018
12/11/2018
12/12/2018
12/13/2018
12/14/2018
12/15/2018
12/16/2018
12/17/2018
12/18/2018
12/19/2018
12/20/2018
12/21/2018
12/22/2018
12/23/2018
12/24/2018
12/25/2018
12/26/2018
12/27/2018
12/28/2018
12/29/2018
12/30/2018
12/31/2018
Day of YearDaily PrcpMultiday Prcp
1/1/2019
1/2/2019
1/3/2019
1/4/2019
1/5/2019
1/6/2019 0.45
1/7/2019
1/8/2019
1/9/2019
1/10/2019 0.12
1/11/2019
1/12/2019
1/13/2019
1/14/2019
1/15/2019 0.05
1/16/2019 2.50
1/17/2019
1/18/2019
1/19/2019
1/20/2019
1/21/2019 M
1/22/2019
1/23/2019
1/24/2019
1/25/2019
1/26/2019
1/27/2019
1/28/2019
1/29/2019
1/30/2019
1/31/2019
2/1/2019
2/2/2019 0.20
2/3/2019
2/4/2019 0.45
2/5/2019 0.65
2/6/2019
2/7/2019
2/8/2019
2/9/2019 0.35
2/10/2019
2/11/2019 0.40
2/12/2019
2/13/2019 0.60
2/14/2019
2/15/2019 0.27
2/16/2019
2/17/2019
2/18/2019
2/19/2019
2/20/2019
2/21/2019
2/22/2019
2/23/2019
2/24/2019
2/25/2019
2/26/2019
2/27/2019 0.10
2/28/2019
3/1/2019
3/2/2019
3/3/2019 0.95
3/4/2019
3/5/2019
3/6/2019 1.45
3/7/2019
3/8/2019
3/9/2019
3/10/2019
3/11/2019
3/12/2019
3/13/2019
3/14/2019
3/15/2019
3/16/2019
3/17/2019
3/18/2019
3/19/2019
3/20/2019 1.10
3/21/2019
3/22/2019
3/23/2019
3/24/2019
3/25/2019
3/26/2019
3/27/2019
3/28/2019
3/29/2019
3/30/2019
3/31/2019
Day of YearDaily PrcpMultiday Prcp
4/1/2019
4/2/2019 0.01
4/3/2019 0.09
4/4/2019
4/5/2019
4/6/2019
4/7/2019
4/8/2019
4/9/2019
4/10/2019
4/11/2019
4/12/2019
4/13/2019
4/14/2019
4/15/2019
4/16/2019
4/17/2019
4/18/2019
4/19/2019
4/20/2019
4/21/2019
4/22/2019
4/23/2019
4/24/2019
4/25/2019
4/26/2019
4/27/2019
4/28/2019
4/29/2019
4/30/2019
5/1/2019
5/2/2019
5/3/2019
5/4/2019
5/5/2019
5/6/2019
5/7/2019
5/8/2019
5/9/2019
5/10/2019 0.40
5/11/2019
5/12/2019
5/13/2019
5/14/2019
5/15/2019
5/16/2019 0.38
5/17/2019 0.10
5/18/2019
5/19/2019
5/20/2019
5/21/2019
5/22/2019
5/23/2019 0.46
5/24/2019 0.35
5/25/2019
5/26/2019
5/27/2019
5/28/2019
5/29/2019
5/30/2019
5/31/2019
6/1/2019 0.08
6/2/2019
6/3/2019 0.10
6/4/2019
6/5/2019
6/6/2019
6/7/2019
6/8/2019
6/9/2019
6/10/2019
6/11/2019
6/12/2019
6/13/2019
6/14/2019
6/15/2019
6/16/2019
6/17/2019
6/18/2019
6/19/2019
6/20/2019
6/21/2019
6/22/2019
6/23/2019
6/24/2019
6/25/2019
6/26/2019
6/27/2019
6/28/2019
6/29/2019
6/30/2019
Day of YearDaily PrcpMultiday Prcp
7/1/2019
7/2/2019
7/3/2019
7/4/2019
7/5/2019
7/6/2019
7/7/2019
7/8/2019
7/9/2019
7/10/2019
7/11/2019
7/12/2019
7/13/2019
7/14/2019
7/15/2019
7/16/2019
7/17/2019
7/18/2019
7/19/2019
7/20/2019
7/21/2019
7/22/2019
7/23/2019
7/24/2019
7/25/2019
7/26/2019 0.20
7/27/2019
7/28/2019
7/29/2019
7/30/2019
7/31/2019
8/1/2019
8/2/2019
8/3/2019
8/4/2019
8/5/2019
8/6/2019
8/7/2019
8/8/2019 0.20
8/9/2019
8/10/2019
8/11/2019
8/12/2019
8/13/2019
8/14/2019
8/15/2019
8/16/2019
8/17/2019
8/18/2019
8/19/2019
8/20/2019
8/21/2019
8/22/2019
8/23/2019
8/24/2019
8/25/2019
8/26/2019
8/27/2019
8/28/2019
8/29/2019
8/30/2019
8/31/2019
9/1/2019
9/2/2019
9/3/2019
9/4/2019
9/5/2019 0.12
9/6/2019 0.05
9/7/2019
9/8/2019
9/9/2019
9/10/2019
9/11/2019
9/12/2019
9/13/2019
9/14/2019
9/15/2019
9/16/2019
9/17/2019
9/18/2019
9/19/2019
9/20/2019
9/21/2019
9/22/2019
9/23/2019
9/24/2019
9/25/2019
9/26/2019
9/27/2019
9/28/2019
9/29/2019
9/30/2019



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/3/2018 7:00 AM 0.21 M M M M Moderate rain fell from 9AM to 1PM
10/4/2018 7:00 AM 0.06 M M M M
10/7/2018 7:00 AM 0.07 M M M M
11/22/2018 7:00 AM 0.40 4.0 0.40 4.0 0.40 First snow of WY 2019
11/28/2018 7:00 AM 0.16 M M M M rain
11/29/2018 7:00 AM 0.41 3.5 0.41 3.5 0.41
12/1/2018 7:00 AM 0.21 2.5 0.21 5.5 M
12/5/2018 7:00 AM 0.15 1.5 0.50 4.5 0.40 Light snow fell over the past 24 hrs but little accumulation. 100% overcast, light snowfall continues.
12/6/2018 7:00 AM 0.10 1.0 0.10 5.0 0.50
1/6/2019 7:00 AM 0.45 5.0 0.45 7.0 0.55 Light snow began 2000. Light winds
1/10/2019 7:00 AM 0.12 1.2 0.12 5.5 0.70 0.30 inches frozen fog on study plot stake
1/15/2019 7:00 AM 0.05 0.5 0.05 4.5 0.50
1/16/2019 7:00 AM 2.50 2.5 0.30 10.0 2.30
1/21/2019 7:00 AM M 10.0 0.70 16.0 M EDIT: Snowfall also entered as precip. 10.00" precip set to NA pending followup with observer. OST 1/21/2019 2:30 PM -CCR Staff SDH-
2/2/2019 7:00 AM 0.20 2.0 0.20 15.0 3.00
2/4/2019 7:00 AM 0.45 4.0 0.45 24.0 3.50
2/5/2019 7:00 AM 0.65 8.0 0.65 32.0 4.15
2/9/2019 7:00 AM 0.35 3.5 0.35 32.0 9.00
2/11/2019 7:00 AM 0.40 5.0 0.40 36.0 7.00
2/13/2019 7:00 AM 0.60 4.5 0.60 36.0 8.00
2/15/2019 7:00 AM 0.27 3.0 0.10 33.0 7.00
2/27/2019 7:00 AM 0.10 1.0 0.10 33.0 8.00
3/3/2019 7:00 AM 0.95 3.0 0.45 26.0 9.00 Rain/snow mix during the day followed by 3" snow in the evening hours
3/6/2019 7:00 AM 1.45 7.3 1.45 34.0 9.00
3/20/2019 9:00 AM 1.10 0.5 0.10 25.0 11.00
4/2/2019 7:00 AM 0.01 M M 18.0 8.00
4/3/2019 7:00 AM 0.09 M M 15.0 7.00
5/10/2019 7:00 AM 0.40 M M M M Onset of rain at 1530 hrs. Light to moderate rainfall, calm winds.
5/16/2019 7:00 AM 0.38 0.0 0.00 0.0 0.00 Onset of rain 2AM, measurement at 0700
5/17/2019 7:00 AM 0.10 M M M M
5/23/2019 7:00 AM 0.46 M M M M
5/24/2019 7:00 AM 0.35 M M M M periods of rain throughout the day as low rotated overhead.
6/1/2019 7:00 AM 0.08 M M M M Thunderstorms from 2PM to 4 PM
6/3/2019 7:00 AM 0.10 M M M M
7/26/2019 7:00 AM 0.20 M M M M 24 hotal rain from Thunderstorms
8/8/2019 7:00 AM 0.20 M M M M
9/5/2019 7:00 AM 0.12 M M M M
9/6/2019 7:00 AM 0.05 M 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