Station Overview Station Location
Station Number TX-HRR-116 Latitude 29.8121
Station Name Katy 1.0 NNE Longitude -95.8177
County Harris Elevation (ft) 149



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 17 4.64 1.95 31 1.92 30 0.03 1 1 4 1 0.0 0 0
Nov 17 4.84 2.13 4 2.13 4 0.00 0 0 3 0 0.0 0 0
Dec 17 3.57 4.55 19 2.46 16 2.09 3 1 9 2 1.9 1 1
Jan 18 3.22 2.33 27 2.20 24 0.13 3 1 10 1 0.0 0 0
Feb 18 2.97 3.93 26 3.93 26 0.00 0 0 19 2 0.0 0 0
March 18 3.18 2.94 16 2.90 12 0.04 4 1 4 1 0.0 0 0
April 18 3.31 2.83 7 2.83 7 0.00 0 0 5 0 0.0 0 0
May 18 4.55 4.14 6 4.14 6 0.00 0 0 3 1 0.0 0 0
June 18 4.83 7.31 10 7.31 7 0.00 3 0 5 1 0.0 0 0
July 18 3.38 2.74 29 2.58 19 0.16 10 2 7 0 0.0 0 0
Aug 18 3.92 1.43 13 1.29 10 0.14 3 1 5 1 0.0 0 0
Sept 18 4.33 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 46.74" 36.28" 188 days 33.69" 161 2.59" 27 days 7 74 days 10 days 1.9" 1 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
10/1/2017 0.03
10/2/2017 0.00
10/3/2017 T
10/4/2017 0.50
10/5/2017 0.00
10/6/2017 0.00
10/7/2017 0.00
10/8/2017 0.00
10/9/2017 0.00
10/10/2017 0.00
10/11/2017 0.00
10/12/2017 0.00
10/13/2017 0.00
10/14/2017 0.00
10/15/2017 0.00
10/16/2017 0.00
10/17/2017 0.00
10/18/2017 0.00
10/19/2017 0.00
10/20/2017 0.38
10/21/2017 0.00
10/22/2017 0.88
10/23/2017 0.16
10/24/2017 0.00
10/25/2017 0.00
10/26/2017 0.00
10/27/2017 0.00
10/28/2017 0.00
10/29/2017 0.00
10/30/2017 0.00
10/31/2017 0.00
11/1/2017 2.10
11/2/2017 0.01
11/3/2017 0.02
11/4/2017
11/5/2017 0.00
11/6/2017
11/7/2017
11/8/2017
11/9/2017
11/10/2017
11/11/2017
11/12/2017
11/13/2017
11/14/2017
11/15/2017
11/16/2017
11/17/2017
11/18/2017
11/19/2017
11/20/2017
11/21/2017
11/22/2017
11/23/2017
11/24/2017
11/25/2017
11/26/2017
11/27/2017
11/28/2017
11/29/2017
11/30/2017
12/1/2017
12/2/2017
12/3/2017
12/4/2017
12/5/2017 **
12/6/2017 **
12/7/2017 2.09
12/8/2017 0.84
12/9/2017
12/10/2017
12/11/2017
12/12/2017
12/13/2017
12/14/2017
12/15/2017
12/16/2017
12/17/2017 0.77
12/18/2017 0.02
12/19/2017 0.03
12/20/2017 0.52
12/21/2017 0.00
12/22/2017 0.00
12/23/2017 0.02
12/24/2017 0.00
12/25/2017 0.00
12/26/2017 0.04
12/27/2017 0.18
12/28/2017 0.04
12/29/2017 T
12/30/2017 0.00
12/31/2017 T
Day of YearDaily PrcpMultiday Prcp
1/1/2018 0.02
1/2/2018 0.00
1/3/2018 0.00
1/4/2018 0.00
1/5/2018 0.00
1/6/2018 0.00
1/7/2018 0.00
1/8/2018 0.14
1/9/2018 0.00
1/10/2018 0.03
1/11/2018
1/12/2018 0.73
1/13/2018 0.00
1/14/2018 0.00
1/15/2018 0.00
1/16/2018 0.22
1/17/2018
1/18/2018 **
1/19/2018 **
1/20/2018 0.13
1/21/2018 0.01
1/22/2018 0.09
1/23/2018 0.00
1/24/2018 0.00
1/25/2018 0.00
1/26/2018 T
1/27/2018 0.21
1/28/2018 0.74
1/29/2018 0.01
1/30/2018
1/31/2018
2/1/2018
2/2/2018 0.00
2/3/2018 0.04
2/4/2018 0.12
2/5/2018 0.01
2/6/2018 0.02
2/7/2018 0.04
2/8/2018 0.68
2/9/2018 0.02
2/10/2018 0.93
2/11/2018 0.06
2/12/2018 0.02
2/13/2018 0.02
2/14/2018 0.04
2/15/2018 0.03
2/16/2018 T
2/17/2018 0.00
2/18/2018 T
2/19/2018 0.00
2/20/2018 0.00
2/21/2018 0.03
2/22/2018 0.34
2/23/2018 0.02
2/24/2018 0.00
2/25/2018 1.44
2/26/2018
2/27/2018 0.04
2/28/2018 0.03
3/1/2018 0.01
3/2/2018 **
3/3/2018 **
3/4/2018 **
3/5/2018 0.04
3/6/2018 0.05
3/7/2018 0.00
3/8/2018 0.00
3/9/2018 0.00
3/10/2018 0.00
3/11/2018 0.00
3/12/2018 0.00
3/13/2018
3/14/2018
3/15/2018
3/16/2018 0.01
3/17/2018 0.00
3/18/2018 T
3/19/2018
3/20/2018
3/21/2018
3/22/2018
3/23/2018
3/24/2018
3/25/2018
3/26/2018
3/27/2018
3/28/2018
3/29/2018 2.83
3/30/2018
3/31/2018
Day of YearDaily PrcpMultiday Prcp
4/1/2018
4/2/2018
4/3/2018
4/4/2018 0.49
4/5/2018
4/6/2018
4/7/2018
4/8/2018
4/9/2018 0.04
4/10/2018
4/11/2018
4/12/2018
4/13/2018
4/14/2018 0.91
4/15/2018 0.08
4/16/2018
4/17/2018
4/18/2018 0.00
4/19/2018
4/20/2018
4/21/2018
4/22/2018 1.31
4/23/2018
4/24/2018
4/25/2018
4/26/2018
4/27/2018
4/28/2018
4/29/2018 0.00
4/30/2018
5/1/2018 T
5/2/2018 0.02
5/3/2018 0.00
5/4/2018 0.00
5/5/2018 0.63
5/6/2018
5/7/2018
5/8/2018
5/9/2018
5/10/2018
5/11/2018
5/12/2018
5/13/2018
5/14/2018
5/15/2018
5/16/2018
5/17/2018
5/18/2018
5/19/2018
5/20/2018
5/21/2018 3.49
5/22/2018
5/23/2018
5/24/2018
5/25/2018
5/26/2018
5/27/2018
5/28/2018
5/29/2018
5/30/2018
5/31/2018
6/1/2018
6/2/2018
6/3/2018
6/4/2018
6/5/2018
6/6/2018
6/7/2018
6/8/2018
6/9/2018
6/10/2018
6/11/2018
6/12/2018
6/13/2018
6/14/2018
6/15/2018
6/16/2018 T
6/17/2018
6/18/2018 0.55
6/19/2018 0.39
6/20/2018 3.74
6/21/2018 2.34
6/22/2018
6/23/2018
6/24/2018
6/25/2018
6/26/2018 0.29
6/27/2018 0.00
6/28/2018 **
6/29/2018 **
6/30/2018 **
Day of YearDaily PrcpMultiday Prcp
7/1/2018 **
7/2/2018 0.04
7/3/2018 0.00
7/4/2018
7/5/2018 2.23
7/6/2018 0.05
7/7/2018 0.11
7/8/2018 0.09
7/9/2018 0.04
7/10/2018 0.04
7/11/2018 0.02
7/12/2018 0.00
7/13/2018 0.00
7/14/2018 **
7/15/2018 **
7/16/2018 **
7/17/2018 **
7/18/2018 **
7/19/2018 **
7/20/2018 **
7/21/2018 0.12
7/22/2018 0.00
7/23/2018 0.00
7/24/2018 0.00
7/25/2018 0.00
7/26/2018 0.00
7/27/2018 0.00
7/28/2018 0.00
7/29/2018 0.00
7/30/2018 0.00
7/31/2018
8/1/2018 0.02
8/2/2018 0.00
8/3/2018 0.00
8/4/2018 0.00
8/5/2018 0.12
8/6/2018 0.02
8/7/2018 0.01
8/8/2018 **
8/9/2018 **
8/10/2018 0.14
8/11/2018 T
8/12/2018
8/13/2018
8/14/2018
8/15/2018
8/16/2018
8/17/2018
8/18/2018
8/19/2018 0.00
8/20/2018 1.12
8/21/2018
8/22/2018
8/23/2018
8/24/2018
8/25/2018
8/26/2018
8/27/2018
8/28/2018
8/29/2018
8/30/2018
8/31/2018
9/1/2018
9/2/2018
9/3/2018
9/4/2018
9/5/2018
9/6/2018
9/7/2018
9/8/2018
9/9/2018
9/10/2018
9/11/2018
9/12/2018
9/13/2018
9/14/2018
9/15/2018
9/16/2018
9/17/2018
9/18/2018
9/19/2018
9/20/2018
9/21/2018
9/22/2018
9/23/2018
9/24/2018
9/25/2018
9/26/2018
9/27/2018
9/28/2018
9/29/2018
9/30/2018



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/2/2017 5:00 AM 0.00 0.0 M M M
10/3/2017 5:30 AM T M M M M
10/4/2017 5:00 AM 0.50 M M M M
10/5/2017 5:30 AM 0.00 0.0 M M M
10/6/2017 6:00 AM 0.00 0.0 M M M
10/7/2017 6:00 AM 0.00 0.0 M M M
10/8/2017 6:00 AM 0.00 0.0 M M M
10/9/2017 6:00 AM 0.00 0.0 M M M
10/10/2017 6:00 AM 0.00 0.0 M M M
10/11/2017 5:30 AM 0.00 0.0 M M M
10/12/2017 5:30 AM 0.00 0.0 M M M
10/13/2017 5:30 AM 0.00 0.0 M M M
10/14/2017 6:00 AM 0.00 0.0 M M M
10/15/2017 6:00 AM 0.00 0.0 M M M
10/16/2017 6:00 AM 0.00 0.0 M M M
10/17/2017 6:00 AM 0.00 0.0 M M M
10/18/2017 6:00 AM 0.00 0.0 M M M
10/19/2017 6:00 AM 0.00 0.0 M M M
10/20/2017 5:30 AM 0.38 M M M M
10/21/2017 5:00 AM 0.00 0.0 M M M
10/22/2017 8:30 AM 0.88 M M M M
10/23/2017 5:30 AM 0.16 M M M M
10/24/2017 5:30 AM 0.00 0.0 M M M
10/25/2017 6:00 AM 0.00 0.0 M M M
10/26/2017 6:00 AM 0.00 0.0 M M M
10/27/2017 6:00 AM 0.00 0.0 M M M
10/28/2017 6:00 AM 0.00 0.0 M M M
10/29/2017 6:00 AM 0.00 0.0 M M M
10/30/2017 6:00 AM 0.00 0.0 M M M
10/31/2017 5:00 AM 0.00 0.0 M M M
11/1/2017 5:30 AM 2.10 M M M M
11/2/2017 5:30 AM 0.01 M M M M
11/3/2017 5:30 AM 0.02 M M M M Per CoCoRaHS RC - 0.02" of rain is a possible condensation amount from dew and fog and data should be used with caution to user of data.
11/5/2017 6:00 AM 0.00 0.0 M M M
12/8/2017 5:30 AM 0.84 1.9 M 1.9 M Snow overnight. First snow in Katy, TX in 7 years.
12/17/2017 7:00 AM 0.77 M M M M
12/18/2017 7:00 AM 0.02 M M M M
12/19/2017 7:00 AM 0.03 M M M M
12/20/2017 7:00 AM 0.52 M M M M
12/21/2017 7:00 AM 0.00 0.0 M M M
12/22/2017 6:00 AM 0.00 0.0 M M M
12/23/2017 6:00 AM 0.02 M M M M
12/24/2017 6:00 AM 0.00 0.0 M M M
12/25/2017 6:00 AM 0.00 0.0 M M M
12/26/2017 7:00 AM 0.04 M M M M
12/27/2017 7:00 AM 0.18 M M M M
12/28/2017 7:00 AM 0.04 M M M M
12/29/2017 6:00 AM T M M M M
12/30/2017 7:00 AM 0.00 0.0 M M M
12/31/2017 6:00 AM T M M M M
1/1/2018 6:00 AM 0.02 M M M M
1/2/2018 6:00 AM 0.00 0.0 M M M
1/3/2018 6:00 AM 0.00 0.0 M M M
1/4/2018 6:00 AM 0.00 0.0 M M M
1/5/2018 6:00 AM 0.00 0.0 M M M
1/6/2018 6:00 AM 0.00 0.0 M M M
1/7/2018 6:00 AM 0.00 0.0 M M M
1/8/2018 6:00 AM 0.14 M M M M Several lightning strikes in area around midnight
1/9/2018 5:30 AM 0.00 0.0 M M M
1/10/2018 5:30 AM 0.03 M M M M
1/12/2018 5:30 AM 0.73 M M M M Observed a few very small hailstones in first 30 seconds of storm front around 2:30pm
1/13/2018 5:00 AM 0.00 0.0 M M M
1/14/2018 5:00 AM 0.00 0.0 M M M
1/15/2018 7:00 AM 0.00 0.0 M M M
1/16/2018 8:00 AM 0.22 M M M M Freezing Rain overnight. Predicted to have freezing rain most of day today.
1/21/2018 8:00 AM 0.01 M M M M
1/22/2018 5:30 AM 0.09 M M M M
1/23/2018 6:00 AM 0.00 0.0 M M M
1/24/2018 6:00 AM 0.00 0.0 M M M
1/25/2018 6:00 AM 0.00 0.0 M M M
1/26/2018 5:30 AM T M M M M
1/27/2018 5:30 AM 0.21 M M M M
1/28/2018 8:00 AM 0.74 M M M M
1/29/2018 5:30 AM 0.01 M M M M
2/2/2018 6:00 AM 0.00 0.0 M M M
2/3/2018 6:00 AM 0.04 M M M M
2/4/2018 6:00 AM 0.12 M M M M
2/5/2018 5:30 AM 0.01 M M M M
2/6/2018 5:30 AM 0.02 M M M M
2/7/2018 7:00 AM 0.04 M M M M
2/8/2018 6:00 AM 0.68 M M M M
2/9/2018 5:30 AM 0.02 M M M M
2/10/2018 6:30 AM 0.93 M M M M Light rain since 7:00pm
2/11/2018 6:00 AM 0.06 M M M M
2/12/2018 5:30 AM 0.02 M M M M
2/13/2018 5:45 AM 0.02 M M M M
2/14/2018 5:30 AM 0.04 M M M M Thick fog from 1700 until after observation.
2/15/2018 5:30 AM 0.03 M M M M Fog through Noon, and again overnight, not as thick as yesterday.
2/16/2018 5:30 AM T M M M M
2/17/2018 6:00 AM 0.00 0.0 M M M
2/18/2018 8:00 AM T 0.0 M M M
2/19/2018 6:00 AM 0.00 0.0 M M M
2/20/2018 6:00 AM 0.00 0.0 M M M
2/21/2018 5:30 AM 0.03 M M M M
2/22/2018 5:30 AM 0.34 M M M M
2/23/2018 6:00 AM 0.02 M M M M
2/24/2018 6:00 AM 0.00 0.0 M M M
2/25/2018 6:00 AM 1.44 M M M M Thunderstorms overnight
2/27/2018 5:30 AM 0.04 M M M M
2/28/2018 5:30 AM 0.03 M M M M
3/1/2018 5:30 AM 0.01 M M M M
3/6/2018 5:30 AM 0.05 M M M M
3/7/2018 5:30 AM 0.00 0.0 M M M
3/8/2018 6:00 AM 0.00 0.0 M M M
3/9/2018 6:00 AM 0.00 0.0 M M M
3/10/2018 6:00 AM 0.00 0.0 M M M
3/11/2018 6:00 AM 0.00 0.0 M M M
3/12/2018 6:00 AM 0.00 0.0 M M M
3/16/2018 6:00 AM 0.01 M M M M
3/17/2018 6:00 AM 0.00 0.0 M M M
3/18/2018 6:45 AM T M M M M Just started to sprinkle as I was taking measurement.
3/29/2018 5:30 AM 2.83 M M M M
4/4/2018 6:00 AM 0.49 M M M M Thunderstorms overnight
4/9/2018 5:30 AM 0.04 M M M M
4/14/2018 7:00 AM 0.91 M M M M
4/15/2018 8:00 AM 0.08 M M M M
4/18/2018 5:00 AM 0.00 0.0 M M M
4/22/2018 7:00 AM 1.31 M M M M
4/29/2018 6:00 AM 0.00 0.0 M M M
5/1/2018 5:30 AM T M M M M No accumulation. Observed spot sprinkle for 5 min mid afternoon.
5/2/2018 5:15 AM 0.02 M M M M
5/3/2018 6:00 AM 0.00 0.0 M M M
5/4/2018 6:00 AM 0.00 0.0 M M M
5/5/2018 7:00 AM 0.63 M M M M
5/21/2018 5:30 AM 3.49 M M M M Heavy Rainfall Sunday Afternoon
6/16/2018 7:00 AM T M M M M
6/18/2018 7:00 AM 0.55 M M M M
6/19/2018 7:00 AM 0.39 M M M M
6/20/2018 7:30 AM 3.74 M M M M Numerous short-duration bands of rain. No signfigant flooding -- any accumulation quickly drained away.
6/21/2018 7:45 AM 2.34 M M M M
6/26/2018 7:00 AM 0.29 M M M M
6/27/2018 7:00 AM 0.00 0.0 M M M
7/3/2018 6:00 AM 0.00 0.0 M M M
7/5/2018 7:00 AM 2.23 M M M M
7/6/2018 7:30 AM 0.05 M M M M
7/7/2018 7:00 AM 0.11 M M M M
7/8/2018 7:00 AM 0.09 M M M M
7/9/2018 7:00 AM 0.04 M M M M
7/10/2018 6:30 AM 0.04 M M M M
7/11/2018 7:00 AM 0.02 M M M M
7/12/2018 6:00 AM 0.00 0.0 M M M
7/13/2018 6:00 AM 0.00 0.0 M M M
7/22/2018 6:00 AM 0.00 0.0 M M M
7/23/2018 6:00 AM 0.00 0.0 M M M
7/24/2018 6:00 AM 0.00 0.0 M M M
7/25/2018 6:00 AM 0.00 0.0 M M M
7/26/2018 6:00 AM 0.00 0.0 M M M
7/27/2018 6:00 AM 0.00 0.0 M M M
7/28/2018 6:00 AM 0.00 0.0 M M M
7/29/2018 6:00 AM 0.00 0.0 M M M
7/30/2018 6:00 AM 0.00 0.0 M M M
8/1/2018 6:00 AM 0.02 M M M M
8/2/2018 6:00 AM 0.00 0.0 M M M
8/3/2018 6:00 AM 0.00 0.0 M M M
8/4/2018 6:00 AM 0.00 0.0 M M M
8/5/2018 8:00 AM 0.12 M M M M
8/6/2018 6:00 AM 0.02 M M M M
8/7/2018 6:00 AM 0.01 M M M M
8/11/2018 7:00 AM T M M M M
8/19/2018 5:30 AM 0.00 0.0 M M M
8/20/2018 5:30 AM 1.12 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
9/30/2017 10/01/2017 7:00 AM 2 0.03 M M
12/5/2017 12/07/2017 5:30 AM 3 2.09 M M
1/18/2018 1/20/2018 6:00 AM 3 0.13 M M
3/2/2018 3/05/2018 6:00 AM 4 0.04 M M
6/28/2018 7/02/2018 6:00 AM 5 0.04 M M
7/14/2018 7/21/2018 6:00 AM 8 0.12 M M
8/8/2018 8/10/2018 6:00 AM 3 0.14 M M



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