PHY 103 Final Project Historical Data Project Site: Monthly Extreme Temperature and Precipitation Data (Period of Record: 1940–2014) (Ta = oF, PPT = in.) Month Ta High Date Ta Min. Date PPT Max. Year PPT Min. Year Jan. 63 1/19/05 –8 1/1/79 19.84 1953 0.29 1985 Feb. 73 2.27/86 2 2/2/50 15.50 1999 0.22 1993 Mar. 79 3/29/04 9 3/3/89 11.79 1997 0.48 1965 Apr. 87 4/27/87 23 4/2/08 7.80 1991 0.37 1956 May 96 5/28/83 25 5/1/54 5.83 1948 0.15 1947 Jun. 98 6/18/82 30 6/3/76 6.48 1946 0.04 1945 Jul. 104 7/29/09 35 7/3/62 3.00 1983 0 2013 Aug. 104 8/9/1981 33 8/18/73 5.45 1968 0 1946 Sep. 98 9/2/88 25 9/27/72 9.36 2013 0 2012 Oct. 90 10/1/87 14 10/31/02 10.72 2003 0.39 1987 Nov. 74 11/4/49 15 11/12/15 19.68 2006 1 1976 Dec. 64 12/10/14 –7 12/23/83 14.32 1970 2.02 2013 24-Hour Highest Magnitude Precipitation Events From Last Event Rank Date PPT Amount (Inches) 1 11/2/1917 12.09 2 11/16/1966 10.02 3 12/4/1990 9.52 4 11/16/2003 8.66 5 1/2/2009 6.75 6 12/7/2012 4.36 7 12/17/2013 4.35 8 1/6/2014 4.20 9 11/14/2012 4.01 10 12/3/1918 3.86 Mount Jefferson Eruption History (VEI Rank) Rank VEI Years Before Present 1 6 2,402 2 5 3,752 3 5 1,214 4 4 4,903 5 4 631 6 3 3,120 7 3 1,809 8 3 4,189 Fault History Rank Magnitude (Richter Scale) Years Before Present 1 7.3 170 2 7.0 425 3 6.9 600 4 6.9 85 5 6.8 510 6 6.5 255 7 6.2 350 Project Site Stream Data (Period: 1905–2014) Rank of Annual Highest River Stage Year of Last Rank River Elevation Above Gauge (Feet) Gauge Elevation Above Sea Level River Elevation Above Sea Level Probability of Occurring in Any Given Year 1 1917 34.11 255.83 289.9 1 in 100 2 1970 27.40 255.83 283.2 1 in 50 3 1985 26.05 255.83 281.9 1 in 33.3 4 1990 26.00 255.83 281.8 1 in 25 5 2000 25.20 255.83 281.0 1 in 20 20 2009 21.30 255.83 277.1 1 in 5 30 2012 20.60 255.83 276.4 1 in 3.4 40 2012 19.30 255.83 275.1 1 in 2.3 50 2013 18.50 255.83 274.3 1 in 2 60 2013 17.70 255.83 273.5 1 in 1.8 70 2013 17.25 255.83 273.1 1 in 1.5 80 2013 14.76 255.83 270.6 1 in 1.3 90 2014 13.00 255.83 268.8 1 in 1.1 100 2014 8.99 255.83 264.7 1 in 1 .

1. PHY 103 Final Project Historical Data
Project Site: Monthly Extreme Temperature and Precipitation
Data
(Period of Record: 1940–2014)
(Ta = oF, PPT = in.)
Month
Ta High
Date
Ta Min.
Date
PPT Max.
Year
PPT Min.
Year
Jan.
63
1/19/05
–8
1/1/79
19.84
1953
0.29
1985
Feb.
73
2.27/86
2
2/2/50
15.50
1999
0.22

2. 1993
Mar.
79
3/29/04
9
3/3/89
11.79
1997
0.48
1965
Apr.
87
4/27/87
23
4/2/08
7.80
1991
0.37
1956
May
96
5/28/83
25
5/1/54
5.83
1948
0.15
1947
Jun.
98
6/18/82
30
6/3/76
6.48
1946
0.04

3. 1945
Jul.
104
7/29/09
35
7/3/62
3.00
1983
0
2013
Aug.
104
8/9/1981
33
8/18/73
5.45
1968
0
1946
Sep.
98
9/2/88
25
9/27/72
9.36
2013
0
2012
Oct.
90
10/1/87
14
10/31/02
10.72
2003
0.39

4. 1987
Nov.
74
11/4/49
15
11/12/15
19.68
2006
1
1976
Dec.
64
12/10/14
–7
12/23/83
14.32
1970
2.02
2013
24-Hour Highest Magnitude Precipitation Events
From Last Event
Rank
Date
PPT Amount (Inches)
1
11/2/1917
12.09
2
11/16/1966
10.02
3
12/4/1990
9.52

5. 4
11/16/2003
8.66
5
1/2/2009
6.75
6
12/7/2012
4.36
7
12/17/2013
4.35
8
1/6/2014
4.20
9
11/14/2012
4.01
10
12/3/1918
3.86
Mount Jefferson Eruption History (VEI Rank)
Rank
VEI
Years Before Present
1
6
2,402
2
5
3,752
3

6. 5
1,214
4
4
4,903
5
4
631
6
3
3,120
7
3
1,809
8
3
4,189
Fault History
Rank
Magnitude (Richter Scale)
Years Before Present
1
7.3
170
2
7.0
425
3
6.9
600
4
6.9
85
5

7. 6.8
510
6
6.5
255
7
6.2
350
Project Site Stream Data
(Period: 1905–2014)
Rank of Annual Highest River Stage
Year of Last Rank
River Elevation Above Gauge (Feet)
Gauge Elevation Above Sea Level
River Elevation Above Sea Level
Probability of Occurring in Any Given Year
1
1917
34.11
255.83
289.9
1 in 100
2
1970
27.40
255.83
283.2
1 in 50
3
1985
26.05
255.83
281.9

8. 1 in 33.3
4
1990
26.00
255.83
281.8
1 in 25
5
2000
25.20
255.83
281.0
1 in 20
20
2009
21.30
255.83
277.1
1 in 5
30
2012
20.60
255.83
276.4
1 in 3.4
40
2012
19.30
255.83
275.1
1 in 2.3
50
2013
18.50
255.83
274.3

9. 1 in 2
60
2013
17.70
255.83
273.5
1 in 1.8
70
2013
17.25
255.83
273.1
1 in 1.5
80
2013
14.76
255.83
270.6
1 in 1.3
90
2014
13.00
255.83
268.8
1 in 1.1
100
2014
8.99
255.83
264.7
1 in 1