Station Overview Station Location
Station Number OK-CV-6 Latitude 35.207833
Station Name Norman 7.9 ESE Longitude -97.299917
County Cleveland Elevation (ft) 1102



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 3.85 5.72 5 5.72 5 0.00 0 0 5 0 0.0 0 0
Nov 11 2.37 5.50 7 5.50 7 0.00 0 0 7 0 0.0 0 0
Dec 11 2.16 1.06 6 1.06 6 0.00 0 0 6 0 0.0 0 0
Jan 12 1.53 1.12 1 1.12 1 0.00 0 0 1 0 0.0 0 0
Feb 12 1.98 1.27 8 1.27 8 0.00 0 0 7 1 2.1 1 1
March 12 3.24 6.73 8 6.73 8 0.00 0 0 7 1 0.0 0 0
April 12 3.31 2.37 9 1.70 5 0.67 4 1 5 0 0.0 0 0
May 12 4.92 2.49 7 2.12 4 0.37 3 1 4 0 0.0 0 0
June 12 4.75 1.59 5 1.59 5 0.00 0 0 5 0 0.0 0 0
July 12 2.85 0.47 1 0.47 1 0.00 0 0 1 0 0.0 0 0
Aug 12 3.12 2.63 2 2.63 2 0.00 0 0 2 0 0.0 0 0
Sept 12 4.01 2.35 7 2.35 7 0.00 0 0 7 0 0.0 0 0
Water Year Totals: 38.09" 33.30" 66 days 32.26" 59 1.04" 7 days 2 57 days 2 days 2.1" 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
10/1/2011
10/2/2011
10/3/2011
10/4/2011
10/5/2011
10/6/2011
10/7/2011
10/8/2011
10/9/2011 2.21
10/10/2011 1.45
10/11/2011
10/12/2011
10/13/2011
10/14/2011
10/15/2011
10/16/2011
10/17/2011
10/18/2011
10/19/2011
10/20/2011
10/21/2011
10/22/2011
10/23/2011 1.27
10/24/2011
10/25/2011
10/26/2011
10/27/2011 0.68
10/28/2011 0.11
10/29/2011
10/30/2011
10/31/2011
11/1/2011
11/2/2011
11/3/2011 0.03
11/4/2011
11/5/2011
11/6/2011
11/7/2011
11/8/2011 4.01
11/9/2011
11/10/2011
11/11/2011
11/12/2011
11/13/2011
11/14/2011
11/15/2011 0.10
11/16/2011
11/17/2011
11/18/2011
11/19/2011
11/20/2011
11/21/2011 0.06
11/22/2011 0.71
11/23/2011
11/24/2011
11/25/2011
11/26/2011 0.56
11/27/2011 0.03
11/28/2011
11/29/2011
11/30/2011
12/1/2011
12/2/2011
12/3/2011 0.13
12/4/2011 0.66
12/5/2011
12/6/2011
12/7/2011
12/8/2011
12/9/2011
12/10/2011
12/11/2011
12/12/2011 0.01
12/13/2011 0.10
12/14/2011
12/15/2011 0.13
12/16/2011
12/17/2011
12/18/2011
12/19/2011 0.03
12/20/2011
12/21/2011
12/22/2011
12/23/2011
12/24/2011
12/25/2011
12/26/2011
12/27/2011
12/28/2011
12/29/2011
12/30/2011
12/31/2011
Day of YearDaily PrcpMultiday Prcp
1/1/2012
1/2/2012
1/3/2012
1/4/2012
1/5/2012
1/6/2012
1/7/2012
1/8/2012
1/9/2012
1/10/2012
1/11/2012
1/12/2012
1/13/2012
1/14/2012
1/15/2012
1/16/2012
1/17/2012
1/18/2012
1/19/2012
1/20/2012
1/21/2012
1/22/2012
1/23/2012
1/24/2012
1/25/2012 1.12
1/26/2012
1/27/2012
1/28/2012
1/29/2012
1/30/2012
1/31/2012
2/1/2012
2/2/2012
2/3/2012 0.09
2/4/2012 0.40
2/5/2012
2/6/2012
2/7/2012
2/8/2012
2/9/2012
2/10/2012 0.28
2/11/2012
2/12/2012
2/13/2012 0.21
2/14/2012
2/15/2012 0.03
2/16/2012 T
2/17/2012
2/18/2012 0.15
2/19/2012
2/20/2012
2/21/2012 0.11
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 0.15
3/9/2012 0.47
3/10/2012
3/11/2012 1.42
3/12/2012
3/13/2012
3/14/2012
3/15/2012
3/16/2012
3/17/2012
3/18/2012
3/19/2012 T
3/20/2012 3.91
3/21/2012 0.36
3/22/2012 0.31
3/23/2012 0.11
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 0.44
4/4/2012 0.59
4/5/2012
4/6/2012
4/7/2012
4/8/2012 0.05
4/9/2012
4/10/2012
4/11/2012
4/12/2012 **
4/13/2012 **
4/14/2012 **
4/15/2012 0.67
4/16/2012
4/17/2012
4/18/2012
4/19/2012
4/20/2012 0.59
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 0.03
5/1/2012 0.46
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 0.97
5/13/2012
5/14/2012
5/15/2012
5/16/2012
5/17/2012
5/18/2012 **
5/19/2012 **
5/20/2012 0.37
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 0.22
5/30/2012 0.47
5/31/2012
6/1/2012
6/2/2012 0.41
6/3/2012 0.23
6/4/2012
6/5/2012
6/6/2012
6/7/2012 0.67
6/8/2012 0.05
6/9/2012
6/10/2012
6/11/2012
6/12/2012
6/13/2012 0.23
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 0.47
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 0.86
8/19/2012
8/20/2012
8/21/2012
8/22/2012
8/23/2012
8/24/2012
8/25/2012
8/26/2012 1.77
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 0.16
9/6/2012
9/7/2012
9/8/2012 0.03
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 0.18
9/27/2012 0.87
9/28/2012 0.19
9/29/2012 0.02
9/30/2012 0.90



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/9/2011 8:00 AM 2.21 M M M M We had periodic heavy rain showers from around 6 pm to 10 pm followed by moderate rain overnight. We heard a few distant rumbles of thunder to te southwest around 6:30 pm.
10/10/2011 8:00 AM 1.45 M M M M More heavy rain in the late afternoon. It was convective but no thunder heard.
10/23/2011 8:00 AM 1.27 M M M M Heavy thunderstorm hit 730 to 830 pm. Pea size hail fell round 7:50pm for a few minutes.
10/27/2011 8:07 AM 0.68 M M M M Thunderstorms started around 2:45 am when they moved in from the southwest on top of a cold front. Rain continued on and off till on time.
10/28/2011 8:00 AM 0.11 M M M M Light rain fell on and off most of the day ending around 8:30 pm.
11/3/2011 8:00 AM 0.03 M M M M Light showers with a strong cold front.
11/8/2011 8:00 AM 4.01 M M M M 1.43" in the morning with thunderstorms. Then we had the rest with a squall line that hit just after 11pm CST with very heavy rain lasting an hour and then on and off rain and occasional lightning till observation time. We also had hail for a couple minutes starting 1128 pm of pea size. We also had an earthquake aftershock at 8:46 pm magnitude 4.7. Finally we watched multiple tornadoes out west of here on a chase in the afternoon. What a day!
11/15/2011 8:00 AM 0.10 M M M M Rain showers fell on us as part of the tail end of a rain band that extended all the way to NY!
11/21/2011 8:00 AM 0.06 M M M M Thunderstorms formed north of a cold front in the evening. Most of them passed to our south over Slaughterville but one or two showers hit us.
11/22/2011 8:00 AM 0.71 M M M M Moderate rain fell in the evening 4:30 - 7:00 pm. There was a report of thunder but I didn't hear any.
11/26/2011 8:00 AM 0.56 M M M M Light rain fell in the evening and then from around 5:45 to 8 am. This event was unusual in that no thunder accompanied the rain despite a strong upperlevel storm and cold front.
11/27/2011 8:00 AM 0.03 M M M M Some more cold rain fell during the late morning. North winds blew hard.
12/3/2011 8:00 AM 0.13 M M M M Light rain fell overnight
12/4/2011 8:00 AM 0.66 M M M M Heavy rain from thunderstorms joy during the late morning as a squall line swept by. There were a few close lightning strikes that tripped our external holiday lights.
12/12/2011 8:00 AM 0.01 M M M M Light showers fell in the late morning
12/13/2011 8:00 AM 0.10 M M M M Light occasional rain fell throughout the evening and overnight.
12/15/2011 8:00 AM 0.13 M M M M
12/19/2011 8:00 AM 0.03 M M M M thunder heard around 9 pm.
1/25/2012 8:00 AM 1.12 M M M M Yes we got rain and I'm happy but our amount was on the low end of the predictions. We did get our first lightning and thunder for the year around 6 - 7 pm.
2/3/2012 8:00 AM 0.09 M M M M
2/4/2012 8:00 AM 0.40 M M M M Thunderstorms passed by around noon and then 3 pm. We got missed by most of the rain that fell in northern OK.
2/10/2012 8:00 AM 0.28 M M M M Light rain fell from a band of precip marchig eastward across the state with a weak cold front. There was snow to the west but nothing here.
2/13/2012 8:00 AM 0.21 2.1 0.21 2.1 0.21 Snow started overnight with south winds! In this part of the country, that's rare. Most of the snow was wet. The above amount will be adjusted once the gauge melts.
2/15/2012 8:00 AM 0.03 M M M M Dense freezing fog at the start of the period gave way to afternoon sun before the next system came in with overnight showers.
2/16/2012 8:00 AM T M M M M Thick morning fog had some drizzle before a styling swept it all away by 2 pm.
2/18/2012 8:00 AM 0.15 M M M M Light rain fell overnight.
2/21/2012 8:00 AM 0.11 M M M M Dry line thunderstorms came through around 4 pm with brief heavy rain. The wind went away during the storms and came in from the SW gusting to 40 mph with dust afterwards.
3/8/2012 8:00 AM 0.15 M M M M Showers with one clap of thunder at 7:30 am
3/9/2012 8:00 AM 0.47 M M M M Showers continued on and off throughout the day with cold north winds.
3/11/2012 8:00 AM 1.42 M M M M One lightning bolt overnight that we are aware of.
3/19/2012 8:00 AM T M M M M Rain began 7:50a, just before observation time.
3/20/2012 8:00 AM 3.91 M M M M First batch rain ended around 7:30p last evening. Thunder to our southeast overnight, rain beginning again before 4:36a. Has not ended at observation time.
3/21/2012 8:00 AM 0.36 M M M M 0.02 was from tail end of yesterday's storm. The remaining 0.34 was from a storm that woke me at 11:44p.
3/22/2012 8:00 AM 0.31 M M M M At least two times of rainfall: later half of afternoon and overnight.
3/23/2012 8:00 AM 0.11 M M M M
4/3/2012 8:00 AM 0.44 M M M M Thunderstorms died to our west around 1 am, then a new line formed to our south giving us mostly light to moderate anvil rain and occasional lightning.
4/4/2012 8:00 AM 0.59 M M M M Rain and occasional lightning continued until early afternoon.
4/8/2012 8:00 AM 0.05 M M M M Drizzle and light rain fell after a cold front passage around 1 pm.
4/20/2012 8:00 AM 0.59 M M M M Thunderstorms from a cold front and upper level storm. The most intense passed to our south through Purcell with 1.5" hail.
4/30/2012 8:00 AM 0.03 M M M M Brief showers swept overhead but no thunderstorms formed. I thought that was unusual and later I saw we were capped at 15kft and nearly saturated below.
5/1/2012 8:00 AM 0.46 M M M M Squall line came in from the TX Panhandle around 11 pm. Good brief burst of heavy rain helped our drying soil. Winds were gusting to 40 mph.
5/12/2012 8:00 AM 0.97 M M M M Rain fell most of the day north of a closed upper low.
5/29/2012 8:00 AM 0.22 M M M M Thunderstorms passed mostly to the west and south. But two cores came by to drop small hail. One was around 8 pm and the other around 9:20. Pm.
5/30/2012 8:00 AM 0.47 M M M M More thunderstorms including a windy complex at 11pm and then elevated storms 4:30- 7 am. To be frank, I'm disappointed in our totals so far. It looks like OKC wins out with flooding rain this morning.
6/2/2012 8:00 AM 0.41 M M M M Elevated thunderstorms came through between 3 and 5 pm then from 4 to 6 am. Each episode dropped .2" of rain.
6/3/2012 8:00 AM 0.23 M M M M Another MCS swept through from the TX Panhandle around 4 - 5 am. We didn't have a solid line by the time it came through.
6/7/2012 8:00 AM 0.67 M M M M Rain and some thunder in the morning as a squall line passed by to the south. Day 2 of being in a trapped upper low.
6/8/2012 8:00 AM 0.05 M M M M Some more rain around the upper low to our south.
6/13/2012 8:00 AM 0.23 M M M M Early morning thunderstorm developed overhead just ahead of a big decaying MCS.
7/10/2012 8:00 AM 0.47 M M M M Thunderstorm formed just northeast of us and moved overhead around 8 pm. We had light outflow <10kts and one close lightning strike. Two more storms came overhead from the northeast in the hour afterward.
8/18/2012 8:00 AM 0.86 M M M M
8/26/2012 8:00 AM 1.77 M M M M A line of broken thunderstorm cells came through following a gust front passage from the north around 9 pm. We had quite a few close lightning strikes with one storm around 1 am.
9/5/2012 8:00 AM 0.16 M M M M Thunderstorm around 0400.
9/8/2012 8:00 AM 0.03 M M M M Strong cold hit around 5 pm. Post frontal showers hit around 9 pm. But we got missed by storms to the north and south.
9/26/2012 8:00 AM 0.18 M M M M Squall line headed for Norman but then it a bow formed and headed south of us. The comma evaporated leaving us with just light anvil rain. We did get a lot of wind with some branches down.
9/27/2012 8:00 AM 0.87 M M M M Storms built westward during the day but failed to reach us. Meanwhile more storms developed To our north but failed to build south. New storms developed to our southwest and quickly moved through so as to minimize their time over us.
9/28/2012 8:00 AM 0.19 M M M M Another MCS approached and mostly missed us by dissipating to our west. Yet we got some rain.
9/29/2012 8:00 AM 0.02 M M M M Mostly drizzle fell in the early morning
9/30/2012 8:00 AM 0.90 M M M M Light rain fell since 10am due to an upper low passing to our south The heaviest rain bands fell to our south by 20 mi.



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
4/12/2012 4/15/2012 8:00 AM 4 0.67 M M
5/18/2012 5/20/2012 8:00 AM 3 0.37 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
10/22/2011 8:00 PM NA NA Rice Hard|White Ice 20 no damage Continuous True After rain Same time as smaller hail
11/7/2011 11:28 PM NA 1/4" Pea Size NA Hard 2 1min no damage Intermittent False After rain
3/19/2012 11:01 AM Hail ranged from 2-5mm. Fell during heavy rain. Lasted only about 30 sec. I did not have a hail pad out today. 1/4" Pea Size Rice Rice Hard 1 no damage Continuous True Same time as rain Same time as smaller hail
3/19/2012 3:53 PM Less than a minute. Melted fast. Size estimated. 3/8" Rice Rice Hard 1 no damage Continuous True Same time as rain Same time as smaller hail
3/20/2012 11:44 PM Did not get up. Estimated size from sound. Found a pile of hail in a garden this morning where the house roof channels into one spot. 3/8" 1/4" Pea Size Rice Hard 2 1min no damage Continuous True Same time as rain
1/1/0001 12:00 AM Slept through. Single dent measures 0.20" by 0.15". NA NA NA False 1
5/28/2012 8:00 PM Only two indentations, each one 0.4" longest diameter and almost round. NA NA NA no damage Continuous False After rain 2 3