Station Overview Station Location
Station Number IN-HS-18 Latitude 39.773553
Station Name Avon 0.8 NE Longitude -86.377845
County Hendricks Elevation (ft) 851



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 09 3.12 6.11 30 5.10 26 1.01 4 2 11 2 0.0 0 0
Nov 09 3.55 1.43 30 0.15 21 1.28 9 2 4 0 0.0 0 0
Dec 09 3.09 3.15 24 1.56 19 1.59 5 2 8 1 2.9 4 4
Jan 10 2.44 0.21 1 0.21 1 0.00 0 0 1 0 2.9 1 1
Feb 10 2.34 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 10 3.20 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 10 3.84 0.17 2 0.17 2 0.00 0 0 2 0 0.0 0 0
May 10 5.01 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
June 10 4.41 4.45 2 4.45 2 0.00 0 0 1 0 0.0 0 0
July 10 4.47 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 10 3.14 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 10 3.22 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 41.83" 15.52" 89 days 11.64" 71 3.88" 18 days 6 27 days 3 days 5.8" 5 days 5 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
10/1/2009 0.00
10/2/2009 0.52
10/3/2009 **
10/4/2009 0.03
10/5/2009 0.00
10/6/2009 0.35
10/7/2009 0.00
10/8/2009 0.66
10/9/2009 1.32
10/10/2009 0.05
10/11/2009 0.00
10/12/2009 0.00
10/13/2009 0.00
10/14/2009 0.23
10/15/2009 0.17
10/16/2009 M
10/17/2009 0.00
10/18/2009 0.00
10/19/2009 0.00
10/20/2009 0.00
10/21/2009 0.00
10/22/2009 T
10/23/2009 1.34
10/24/2009 0.01
10/25/2009 0.00
10/26/2009 0.00
10/27/2009 0.01
10/28/2009 0.44
10/29/2009 T
10/30/2009 M **
10/31/2009 M 0.98
11/1/2009 0.00
11/2/2009 0.00
11/3/2009 0.00
11/4/2009 0.03
11/5/2009 0.00
11/6/2009 0.00
11/7/2009 0.00
11/8/2009 0.00
11/9/2009 0.00
11/10/2009 0.00
11/11/2009 0.00
11/12/2009 0.00
11/13/2009 0.00
11/14/2009 0.00
11/15/2009 **
11/16/2009 **
11/17/2009 **
11/18/2009 **
11/19/2009 **
11/20/2009 1.00
11/21/2009 0.00
11/22/2009 0.00
11/23/2009 0.00
11/24/2009 0.01
11/25/2009 **
11/26/2009 **
11/27/2009 0.28
11/28/2009 0.00
11/29/2009 0.08
11/30/2009 0.03
12/1/2009 0.00
12/2/2009 **
12/3/2009 0.70
12/4/2009 0.00
12/5/2009 0.00
12/6/2009 0.00
12/7/2009 0.06
12/8/2009 **
12/9/2009 **
12/10/2009 0.89
12/11/2009 0.00
12/12/2009 0.00
12/13/2009 0.87
12/14/2009 0.00
12/15/2009 0.00
12/16/2009 0.00
12/17/2009 0.00
12/18/2009
12/19/2009 T
12/20/2009 0.12
12/21/2009 0.03
12/22/2009 0.01
12/23/2009 0.04
12/24/2009 0.05
12/25/2009 0.38
12/26/2009
12/27/2009
12/28/2009
12/29/2009
12/30/2009
12/31/2009
Day of YearDaily PrcpMultiday Prcp
1/1/2010
1/2/2010
1/3/2010
1/4/2010
1/5/2010
1/6/2010
1/7/2010 0.21
1/8/2010
1/9/2010
1/10/2010
1/11/2010
1/12/2010
1/13/2010
1/14/2010
1/15/2010
1/16/2010
1/17/2010
1/18/2010
1/19/2010
1/20/2010
1/21/2010
1/22/2010
1/23/2010
1/24/2010
1/25/2010
1/26/2010
1/27/2010
1/28/2010
1/29/2010
1/30/2010
1/31/2010
2/1/2010
2/2/2010
2/3/2010
2/4/2010
2/5/2010
2/6/2010
2/7/2010
2/8/2010
2/9/2010
2/10/2010
2/11/2010
2/12/2010
2/13/2010
2/14/2010
2/15/2010
2/16/2010
2/17/2010
2/18/2010
2/19/2010
2/20/2010
2/21/2010
2/22/2010
2/23/2010
2/24/2010
2/25/2010
2/26/2010
2/27/2010
2/28/2010
3/1/2010
3/2/2010
3/3/2010
3/4/2010
3/5/2010
3/6/2010
3/7/2010
3/8/2010
3/9/2010
3/10/2010
3/11/2010
3/12/2010
3/13/2010
3/14/2010
3/15/2010
3/16/2010
3/17/2010
3/18/2010
3/19/2010
3/20/2010
3/21/2010
3/22/2010
3/23/2010
3/24/2010
3/25/2010
3/26/2010
3/27/2010
3/28/2010
3/29/2010
3/30/2010
3/31/2010
Day of YearDaily PrcpMultiday Prcp
4/1/2010
4/2/2010
4/3/2010
4/4/2010 0.02
4/5/2010 0.15
4/6/2010
4/7/2010
4/8/2010
4/9/2010
4/10/2010
4/11/2010
4/12/2010
4/13/2010
4/14/2010
4/15/2010
4/16/2010
4/17/2010
4/18/2010
4/19/2010
4/20/2010
4/21/2010
4/22/2010
4/23/2010
4/24/2010
4/25/2010
4/26/2010
4/27/2010
4/28/2010
4/29/2010
4/30/2010
5/1/2010
5/2/2010
5/3/2010
5/4/2010
5/5/2010
5/6/2010
5/7/2010
5/8/2010
5/9/2010
5/10/2010
5/11/2010
5/12/2010
5/13/2010
5/14/2010
5/15/2010
5/16/2010
5/17/2010
5/18/2010
5/19/2010
5/20/2010
5/21/2010
5/22/2010
5/23/2010
5/24/2010
5/25/2010
5/26/2010
5/27/2010
5/28/2010
5/29/2010
5/30/2010
5/31/2010
6/1/2010
6/2/2010
6/3/2010
6/4/2010
6/5/2010
6/6/2010
6/7/2010
6/8/2010
6/9/2010
6/10/2010
6/11/2010
6/12/2010
6/13/2010
6/14/2010
6/15/2010
6/16/2010
6/17/2010
6/18/2010
6/19/2010
6/20/2010
6/21/2010
6/22/2010 4.45
6/23/2010 0.00
6/24/2010
6/25/2010
6/26/2010
6/27/2010
6/28/2010
6/29/2010
6/30/2010
Day of YearDaily PrcpMultiday Prcp
7/1/2010
7/2/2010
7/3/2010
7/4/2010
7/5/2010
7/6/2010
7/7/2010
7/8/2010
7/9/2010
7/10/2010
7/11/2010
7/12/2010
7/13/2010
7/14/2010
7/15/2010
7/16/2010
7/17/2010
7/18/2010
7/19/2010
7/20/2010
7/21/2010
7/22/2010
7/23/2010
7/24/2010
7/25/2010
7/26/2010
7/27/2010
7/28/2010
7/29/2010
7/30/2010
7/31/2010
8/1/2010
8/2/2010
8/3/2010
8/4/2010
8/5/2010
8/6/2010
8/7/2010
8/8/2010
8/9/2010
8/10/2010
8/11/2010
8/12/2010
8/13/2010
8/14/2010
8/15/2010
8/16/2010
8/17/2010
8/18/2010
8/19/2010
8/20/2010
8/21/2010
8/22/2010
8/23/2010
8/24/2010
8/25/2010
8/26/2010
8/27/2010
8/28/2010
8/29/2010
8/30/2010
8/31/2010
9/1/2010
9/2/2010
9/3/2010
9/4/2010
9/5/2010
9/6/2010
9/7/2010
9/8/2010
9/9/2010
9/10/2010
9/11/2010
9/12/2010
9/13/2010
9/14/2010
9/15/2010
9/16/2010
9/17/2010
9/18/2010
9/19/2010
9/20/2010
9/21/2010
9/22/2010
9/23/2010
9/24/2010
9/25/2010
9/26/2010
9/27/2010
9/28/2010
9/29/2010
9/30/2010



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2009 1:00 PM 0.00 0.0 M 0.0 M
10/2/2009 5:00 PM 0.52 0.0 M 0.0 M
10/5/2009 5:00 PM 0.00 0.0 M 0.0 M
10/6/2009 11:00 PM 0.35 0.0 M 0.0 M
10/7/2009 5:00 PM 0.00 0.0 M 0.0 M
10/8/2009 5:00 PM 0.66 0.0 M 0.0 M
10/9/2009 5:00 PM 1.32 0.0 M 0.0 M
10/10/2009 5:00 PM 0.05 0.0 M 0.0 M
10/11/2009 5:00 PM 0.00 0.0 M 0.0 M
10/12/2009 5:00 PM 0.00 0.0 M 0.0 M
10/13/2009 5:00 PM 0.00 0.0 M 0.0 M
10/14/2009 5:00 PM 0.23 0.0 M 0.0 M
10/15/2009 3:00 PM 0.17 0.0 M 0.0 M
10/16/2009 5:00 PM M M M M M Observation taken but not recorded. Number forgotten. Less than one inch of precipitation.
10/17/2009 5:00 PM 0.00 0.0 M 0.0 M
10/18/2009 5:00 PM 0.00 0.0 M 0.0 M
10/19/2009 5:00 PM 0.00 0.0 M 0.0 M
10/20/2009 5:00 PM 0.00 0.0 M 0.0 M
10/21/2009 5:00 PM 0.00 0.0 M 0.0 M
10/22/2009 3:30 PM T 0.0 M 0.0 M
10/23/2009 5:00 PM 1.34 0.0 M 0.0 M
10/24/2009 5:00 PM 0.01 0.0 M 0.0 M
10/25/2009 5:00 PM 0.00 0.0 M 0.0 M
10/26/2009 5:00 PM 0.00 0.0 M 0.0 M
10/27/2009 2:30 PM 0.01 0.0 M 0.0 M
10/28/2009 5:00 PM 0.44 0.0 M 0.0 M
10/29/2009 5:00 PM T 0.0 M 0.0 M
10/30/2009 5:00 PM M 0.0 M 0.0 M Precipitation occurred but was not observed on time. Entered in multi-day accumulation report.
10/31/2009 5:00 PM M 0.0 M 0.0 M Precipitation occurred but was not observed on time. Entered in multi-day accumulation report.
11/1/2009 5:00 PM 0.00 0.0 M 0.0 M
11/2/2009 5:00 PM 0.00 0.0 M 0.0 M
11/3/2009 5:00 PM 0.00 0.0 M 0.0 M
11/4/2009 5:00 PM 0.03 0.0 M 0.0 M
11/5/2009 5:00 PM 0.00 0.0 M 0.0 M
11/6/2009 5:00 PM 0.00 0.0 M 0.0 M
11/7/2009 5:00 PM 0.00 0.0 M 0.0 M
11/8/2009 5:00 PM 0.00 0.0 M 0.0 M
11/9/2009 5:00 PM 0.00 0.0 M 0.0 M
11/10/2009 5:00 PM 0.00 0.0 M 0.0 M
11/11/2009 5:00 PM 0.00 0.0 M 0.0 M
11/12/2009 5:00 PM 0.00 0.0 M 0.0 M
11/13/2009 5:00 PM 0.00 0.0 M 0.0 M
11/14/2009 5:00 PM 0.00 0.0 M 0.0 M
11/21/2009 5:00 PM 0.00 0.0 M 0.0 M
11/22/2009 5:00 PM 0.00 0.0 M 0.0 M
11/23/2009 5:00 PM 0.00 0.0 M 0.0 M
11/24/2009 7:00 PM 0.01 0.0 M 0.0 M
11/28/2009 5:00 PM 0.00 0.0 M 0.0 M 0.01" found in the gauge, but it is believed to be almost all if not entirely meltwater from heavy frost.
11/29/2009 7:00 PM 0.08 0.0 M 0.0 M
11/30/2009 8:00 PM 0.03 0.0 M 0.0 M
12/1/2009 5:00 PM 0.00 0.0 M 0.0 M
12/4/2009 5:00 PM 0.00 0.0 M 0.0 M
12/5/2009 5:00 PM 0.00 0.0 M 0.0 M
12/6/2009 5:00 PM 0.00 0.0 M 0.0 M
12/7/2009 5:00 PM 0.06 0.7 M 0.5 M Snowfall measurement is approximated through what surfaces supported measurement, visual estimation, and estimation of snowfall amount given climatological 12-1 ratio for Indianapolis area.
12/11/2009 5:00 PM 0.00 0.0 M T M
12/12/2009 5:00 PM 0.00 0.0 M T M
12/13/2009 5:00 PM 0.87 0.0 M 0.0 M
12/14/2009 5:00 PM 0.00 0.0 M 0.0 M
12/15/2009 5:00 PM 0.00 0.0 M 0.0 M
12/16/2009 5:00 PM 0.00 0.0 M 0.0 M
12/17/2009 5:00 PM 0.00 0.0 M 0.0 M
12/19/2009 9:00 AM T T M T M
12/20/2009 9:00 AM 0.12 1.3 M 1.0 M Snowfall measurement partially estimated due to first wave of snow on the morning of the 19th that had largely melted by late afternoon. Estimation based on visual examination yesterday midday, 0.5" measured from overnight snowfall, and climatological normal ratio.
12/21/2009 9:00 AM 0.03 0.5 M 1.5 M
12/22/2009 8:00 AM 0.01 0.4 M 0.5 M
12/23/2009 9:00 AM 0.04 0.0 M T M
12/24/2009 8:00 AM 0.05 0.0 M 0.0 M
12/25/2009 1:00 PM 0.38 0.0 M 0.0 M
1/7/2010 4:00 PM 0.21 2.9 M 3.5 M
4/4/2010 5:00 PM 0.02 M M M M
4/5/2010 5:00 PM 0.15 0.0 M 0.0 M
6/22/2010 5:00 PM 4.45 M M M M 3-5" of rainfall in an 8-10 hour period caused significant to major flooding in the Indianapolis metro area. Breach of the Indianhead Lake Dam, approximately 3 miles northwest of this station, added significantly to flood waters downstream along White Lick Creek, impacting Avon, Plainfield, and Mooresville.
6/23/2010 5:00 PM 0.00 0.0 M 0.0 M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/3/2009 10/04/2009 8:00 AM 2 0.03 0.0 0.00
10/30/2009 10/31/2009 5:00 PM 2 0.98 0.0 0.00 Nearly all rainfall fell from very early on the morning of the 30th to the early morning of the 31st.
11/15/2009 11/20/2009 5:00 PM 6 1.00 0.0 0.00
11/25/2009 11/27/2009 1:00 PM 3 0.28 0.0 0.00 Trace of light snow that melted as it fell occurred during the early evening hours of the 26th.
12/2/2009 12/03/2009 5:00 PM 2 0.70 0.0 0.00 A trace of snowfall likely occurred, but observer was not home to directly observe.
12/8/2009 12/10/2009 5:00 PM 3 0.89 M M Estimated snowfall amount of half an inch or less fell. Was unable to measure on time due to illness.



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