Station Overview Station Location
Station Number OK-CV-116 Latitude 35.184771
Station Name Norman 2.8 SSW Longitude -97.456772
County Cleveland Elevation (ft)



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 14 3.82 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 14 2.21 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Dec 14 2.12 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 15 1.49 0.47 2 0.47 2 0.00 0 0 2 0 0.3 1 0
Feb 15 1.90 0.96 3 0.96 3 0.00 0 0 3 0 2.6 2 0
March 15 3.13 2.01 6 2.01 6 0.00 0 0 6 0 1.5 1 0
April 15 3.20 4.85 10 4.85 10 0.00 0 0 10 0 0.0 0 0
May 15 4.86 23.60 17 23.60 17 0.00 0 0 17 0 0.0 0 0
June 15 4.78 6.54 11 2.75 1 3.79 10 2 1 0 0.0 0 0
July 15 2.87 6.52 8 6.52 8 0.00 0 0 8 0 0.0 0 0
Aug 15 3.18 0.43 1 0.43 1 0.00 0 0 1 0 0.0 0 0
Sept 15 3.96 3.11 5 3.11 5 0.00 0 0 5 0 0.0 0 0
Water Year Totals: 37.52" 48.49" 63 days 44.70" 53 3.79" 10 days 2 53 days 0 days 4.4" 4 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
10/1/2014
10/2/2014
10/3/2014
10/4/2014
10/5/2014
10/6/2014
10/7/2014
10/8/2014
10/9/2014
10/10/2014
10/11/2014
10/12/2014
10/13/2014
10/14/2014
10/15/2014
10/16/2014
10/17/2014
10/18/2014
10/19/2014
10/20/2014
10/21/2014
10/22/2014
10/23/2014
10/24/2014
10/25/2014
10/26/2014
10/27/2014
10/28/2014
10/29/2014
10/30/2014
10/31/2014
11/1/2014
11/2/2014
11/3/2014
11/4/2014
11/5/2014
11/6/2014
11/7/2014
11/8/2014
11/9/2014
11/10/2014
11/11/2014
11/12/2014
11/13/2014
11/14/2014
11/15/2014
11/16/2014
11/17/2014
11/18/2014
11/19/2014
11/20/2014
11/21/2014
11/22/2014
11/23/2014
11/24/2014
11/25/2014
11/26/2014
11/27/2014
11/28/2014
11/29/2014
11/30/2014
12/1/2014
12/2/2014
12/3/2014
12/4/2014
12/5/2014
12/6/2014
12/7/2014
12/8/2014
12/9/2014
12/10/2014
12/11/2014
12/12/2014
12/13/2014
12/14/2014
12/15/2014
12/16/2014
12/17/2014
12/18/2014
12/19/2014
12/20/2014
12/21/2014
12/22/2014
12/23/2014
12/24/2014
12/25/2014
12/26/2014
12/27/2014
12/28/2014
12/29/2014
12/30/2014
12/31/2014
Day of YearDaily PrcpMultiday Prcp
1/1/2015
1/2/2015
1/3/2015
1/4/2015
1/5/2015
1/6/2015
1/7/2015
1/8/2015
1/9/2015
1/10/2015
1/11/2015
1/12/2015
1/13/2015
1/14/2015
1/15/2015
1/16/2015
1/17/2015
1/18/2015
1/19/2015
1/20/2015
1/21/2015
1/22/2015 0.46
1/23/2015
1/24/2015
1/25/2015
1/26/2015
1/27/2015
1/28/2015
1/29/2015
1/30/2015
1/31/2015 0.01
2/1/2015 0.70
2/2/2015
2/3/2015
2/4/2015
2/5/2015
2/6/2015
2/7/2015
2/8/2015
2/9/2015
2/10/2015
2/11/2015
2/12/2015
2/13/2015
2/14/2015
2/15/2015
2/16/2015 0.08
2/17/2015
2/18/2015
2/19/2015
2/20/2015
2/21/2015
2/22/2015
2/23/2015
2/24/2015
2/25/2015
2/26/2015
2/27/2015
2/28/2015 0.18
3/1/2015
3/2/2015
3/3/2015
3/4/2015
3/5/2015 0.18
3/6/2015
3/7/2015
3/8/2015
3/9/2015
3/10/2015 0.49
3/11/2015
3/12/2015
3/13/2015
3/14/2015 0.39
3/15/2015
3/16/2015
3/17/2015
3/18/2015 0.19
3/19/2015
3/20/2015 0.40
3/21/2015
3/22/2015
3/23/2015
3/24/2015
3/25/2015
3/26/2015 0.36
3/27/2015
3/28/2015
3/29/2015
3/30/2015
3/31/2015
Day of YearDaily PrcpMultiday Prcp
4/1/2015 0.33
4/2/2015
4/3/2015
4/4/2015
4/5/2015 0.18
4/6/2015
4/7/2015
4/8/2015
4/9/2015
4/10/2015
4/11/2015
4/12/2015 0.08
4/13/2015 1.46
4/14/2015 0.62
4/15/2015
4/16/2015
4/17/2015
4/18/2015
4/19/2015 0.50
4/20/2015
4/21/2015
4/22/2015
4/23/2015 0.29
4/24/2015
4/25/2015
4/26/2015
4/27/2015 0.03
4/28/2015 1.32
4/29/2015
4/30/2015 0.04
5/1/2015
5/2/2015
5/3/2015
5/4/2015
5/5/2015
5/6/2015 4.42
5/7/2015 0.72
5/8/2015 0.66
5/9/2015 1.58
5/10/2015 1.67
5/11/2015 0.68
5/12/2015
5/13/2015
5/14/2015 0.78
5/15/2015 0.82
5/16/2015
5/17/2015 1.21
5/18/2015
5/19/2015
5/20/2015 4.04
5/21/2015
5/22/2015 0.10
5/23/2015 0.58
5/24/2015 5.00
5/25/2015 0.32
5/26/2015 0.32
5/27/2015
5/28/2015 0.34
5/29/2015 0.36
5/30/2015
5/31/2015
6/1/2015
6/2/2015
6/3/2015
6/4/2015
6/5/2015
6/6/2015
6/7/2015
6/8/2015
6/9/2015
6/10/2015
6/11/2015 **
6/12/2015 **
6/13/2015 **
6/14/2015 **
6/15/2015 **
6/16/2015 M 3.37
6/17/2015
6/18/2015 2.75
6/19/2015
6/20/2015
6/21/2015
6/22/2015
6/23/2015
6/24/2015
6/25/2015
6/26/2015
6/27/2015 **
6/28/2015 **
6/29/2015 **
6/30/2015 0.42
Day of YearDaily PrcpMultiday Prcp
7/1/2015
7/2/2015
7/3/2015 2.64
7/4/2015 0.17
7/5/2015 0.87
7/6/2015
7/7/2015 0.10
7/8/2015 1.64
7/9/2015 0.03
7/10/2015
7/11/2015
7/12/2015
7/13/2015
7/14/2015
7/15/2015
7/16/2015
7/17/2015
7/18/2015
7/19/2015
7/20/2015
7/21/2015 0.14
7/22/2015 0.93
7/23/2015
7/24/2015
7/25/2015
7/26/2015
7/27/2015
7/28/2015
7/29/2015
7/30/2015
7/31/2015
8/1/2015
8/2/2015
8/3/2015
8/4/2015
8/5/2015
8/6/2015
8/7/2015
8/8/2015
8/9/2015
8/10/2015
8/11/2015
8/12/2015
8/13/2015
8/14/2015
8/15/2015
8/16/2015
8/17/2015
8/18/2015
8/19/2015 0.43
8/20/2015
8/21/2015
8/22/2015
8/23/2015
8/24/2015
8/25/2015
8/26/2015
8/27/2015
8/28/2015
8/29/2015
8/30/2015
8/31/2015
9/1/2015
9/2/2015
9/3/2015
9/4/2015
9/5/2015
9/6/2015
9/7/2015
9/8/2015
9/9/2015 1.08
9/10/2015
9/11/2015
9/12/2015
9/13/2015
9/14/2015 0.05
9/15/2015
9/16/2015
9/17/2015
9/18/2015
9/19/2015 0.13
9/20/2015 0.74
9/21/2015 1.11
9/22/2015
9/23/2015
9/24/2015
9/25/2015
9/26/2015
9/27/2015
9/28/2015
9/29/2015
9/30/2015



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
1/22/2015 7:41 AM 0.46 0.3 0.10 M M Rain turned to wet snow around 3 am and fell for two hours. Temperatures remained above freezing throughout the period leaving a few tenths of an inch of slush.
1/31/2015 8:00 AM 0.01 M M M M Sent via CoCoRaHS Observer for iOS
2/1/2015 8:00 AM 0.70 M M M M Light rain fell most of the day.
2/16/2015 8:00 AM 0.08 0.1 M M M Thunder sleet glanced by us overnight.
2/28/2015 8:00 AM 0.18 2.5 0.18 M M All precip was measured mellted core
3/5/2015 8:00 AM 0.18 1.5 0.18 M M Snow from 12 to 8 pm. Heaviest was from 4-5 pm
3/10/2015 8:00 AM 0.49 M M M M Sent via CoCoRaHS Observer for iOS
3/14/2015 8:00 AM 0.39 M M M M Light rain fell on the northwest side of ban upper low.
3/18/2015 8:00 AM 0.19 M M M M Light rain
3/20/2015 8:00 AM 0.40 M M M M More light rain
3/26/2015 8:00 AM 0.36 M M M M Thunderstorms swept just to our north and south.
4/1/2015 8:00 AM 0.33 M M M M Thunderstorms along a warm front missed us to our north and east while an MCS came from the west and weakened while passing overhead.
4/5/2015 8:00 AM 0.18 M M M M Wehad light rain and some thunder last night.
4/12/2015 8:00 AM 0.08 M M M M Light rain fell and some thunder rumbled midday.
4/13/2015 8:00 AM 1.46 M M M M Thunderstorms with winds to 50 mph hit around 5am. This tone they intensified overhead.
4/14/2015 8:00 AM 0.62 M M M M Moderate rain continued till early afternoon. Storm total is over 2".
4/19/2015 8:00 AM 0.50 M M M M Bowing thunderstorms moved directly over Norman with strong winds. Hail fell downtown but not here.
4/23/2015 8:00 AM 0.29 M M M M An MCS passed through in the early morning. The most intense convection passed by yo our south and new cpnvection formed in east Norman.
4/27/2015 8:00 AM 0.03 M M M M Sent via CoCoRaHS Observer for iOS
4/28/2015 8:00 AM 1.32 M M M M Sent via CoCoRaHS Observer for iOS
4/30/2015 8:00 AM 0.04 M M M M Sent via CoCoRaHS Observer for iOS
5/6/2015 8:00 AM 4.42 M M M M What a dump overnight! We started with moderate rain 3-5 pm. Then the rain transitioned to convective showers after 6 pm. The heaviest storms came as showers intensified around midnight. By 1:30 am a squall line swept through with 50 mph winds. Final storms hot around 5 am.
5/7/2015 8:00 AM 0.72 M M M M Severe thunderstorms with hail and tornadoes missed us as they went through north Norman. Flooding was also severe up north.
5/8/2015 8:00 AM 0.66 M M M M A squall line passed through around 6-7 pm
5/9/2015 8:00 AM 1.58 M M M M Supercell formed overhead and moved northeast. Luckily no tornado formed as we were right under the updraft. The big hail and damaging winds fell in north Norman again.
5/10/2015 8:00 AM 1.67 M M M M Thunderstorms passed through in the early afternoon with 1.46". Then more rain with thunder came through in the morning just before ob time
5/11/2015 6:53 AM 0.68 M M M M Last thunderstorms for this trough came through with the cold front. Nearly 10" of rain has fallen in the last five days.
5/14/2015 8:00 AM 0.78 M M M M Rain fell in the pm
5/15/2015 8:00 AM 0.82 M M M M Squall line passed through aroind 4:30 - 5:30 am. The line was preceded by wuite a few lightning strikes and accompanied by 30-40 mph winds.
5/17/2015 8:00 AM 1.21 M M M M More thunderstorms swept in from the southwest while consolidating into a line.
5/20/2015 8:00 AM 4.04 M M M M More thunderstorms swept overhead along a warm front parked overhead. We had storms including a supercell around 2-3:30 pm and then training storms 5-8 pm. The later storms dropped over 3".
5/22/2015 8:00 AM 0.10 M M M M Light rain started falling around 5am.
5/23/2015 8:00 AM 0.58 M M M M Just rain midday
5/24/2015 8:00 AM 5.00 M M M M I did not put record flooding because i havent lived in our neighborhood for a year. However around town, especially the east side, ive never seen flooding this bad. A line of thinderstorms stalled overhead after we got numerous pre-line storms. All started in the late afternoon and continued till midnight. Some of the preline storms produced tornadoes in the central OK.
5/25/2015 8:00 AM 0.32 M M M M Sent via CoCoRaHS Observer for iOS
5/26/2015 8:00 AM 0.32 M M M M Rain finally came in an amount we could handle. We were on the northern edge of a squall line that extended all the way to southern TX. There was occasional thunder.
5/28/2015 8:00 AM 0.34 M M M M A squall line moved in from the west with occasional lightning and one mesovortex to our southeast.
5/29/2015 8:00 AM 0.36 M M M M An mcs mostly missed us to the south though we managed to get rain and occasional lightning out of its anvil. An afternoon thunderstorm delivered a quick burst of heavy rain rate.
6/16/2015 8:00 AM M M M M M Multi-day total for 8am June 11to 8am June 16. (Edit 2015-06-16: changed daily report for 6/16 from 3.37 to NA and entered multi-day report based on observer comment of "Multi-day total for 8am June 11to 8am June 16.". CML)
6/18/2015 8:20 AM 2.75 M M M M
7/3/2015 8:00 AM 2.64 M M M M A thunderstorm complex southward and reached us at 9:30 pm. Storms trained over us several times overnight before shifting to our south by 6 am.
7/4/2015 8:00 AM 0.17 M M M M Thunderstorms formed along a weak front to our north and then moved to our south. There was a svr warning for a downburst but the winds failed to make 50kts here.
7/5/2015 8:00 AM 0.87 M M M M Got a direct hit by a thunderstorm core again this afternoon. Spme weak upperlevel disturbance came right down an axis of high instability along a weak front from the northwest. Initial storms died and new ones formed just west of town. We got nailed by 50 mph winds.
7/7/2015 8:00 AM 0.10 M M M M Squall line to tge north died as it approached but we woubd up withr a small shower at 7 am.
7/8/2015 8:00 AM 1.64 M M M M Moderate rain fell on and off throughout the day and into about 9 pm. Norman wound up being on the lower end of the spectrum of totals for once.
7/9/2015 8:00 AM 0.03 M M M M Elevated showers moved from the SW at 7:30 am.
7/21/2015 8:00 AM 0.14 M M M M Thunderstorms occurred to our north and southwest from 7 to 10 pm. We had a few near misses later on at some point but no direct hits.
7/22/2015 8:00 AM 0.93 M M M M Second day of thunderstorms as they formed along a stationary front to our south. This time some of the cores went overhead at 9 pm and then 11 pm. We had some outflow from te south to 20 kts and quite frequent lightning.
8/19/2015 8:00 AM 0.43 M M M M A squall line passed through 6am.
9/9/2015 8:00 AM 1.08 M M M M A large updraft base formed to our west along a cold front and what followed was a direct hit by a thunderstorm. We enjoyed the heavy rains and 40 mph winds accompanied by occasional lightning.
9/14/2015 8:00 AM 0.05 M M M M Morning thunderstorms with occasional lightning formed to our west and then southeast.
9/19/2015 8:00 AM 0.13 M M M M Frontal thunderstorms mostly missed us overnight.
9/20/2015 8:17 AM 0.74 M M M M Warm advection thunderstorms developed overhead around 5 am and continued through ob time.
9/21/2015 8:00 AM 1.11 M M M M Heavy showers with infrequent lightning kept developing to the west and moved overhead. Storm total was 1.85".



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
6/11/2015 6/16/2015 8:00 AM 6 3.37 0.0 0.00 (Edit 2015-06-16: changed daily report for 6/16 from 3.37 to NA and entered multi-day report based on observer comment of "Multi-day total for 8am June 11to 8am June 16.". CML)
6/27/2015 6/30/2015 8:00 AM 4 0.42 M M Thunderstorms on the 28th and 29th



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