PERMFILE64870

• Permit No: C1981010
• IBM Index Class Name: Permit File
• Doc Date: 4/13/1998
• Doc Name: Annual Hydrology Report
• Section_Exhibit Name: Appendix W 1997 Report Section 2.0
• Media Type: D
• Archive: No

• CLIMATOLO~I, DATA 1997 ~~
ANNUAL HYDROLOGICAL REPORT
SECTION 2.1 CLIMATOLOGICAL DATA FOR THE YEAR 1997
TRAPPER MINE NOAA WEATHER DATA SUMMARIES
MONTHLY PRECIPITATION TOTALS (1978 TO PRESENT)
STATION: CRAIG 45W
(JAN36- (MAl"77
PRECIPITATION fIJ INCHES DEC'79) PRESENT)
44-YR PTD ,°
YEAR JAN FEB MAR APR MA}• JUN JUL AUG SEP OCT NOV pEC SUM MEAN MEAN(t) 44YR PTD
HIST
MEAN 0.92 0.85 1.02 1.12 1.73 1.2 0.93 1.31 1.12 1.3 0.99 1.25 17.56 13.56
PROTECT START-UP CRAIG 4S W
1978 1.5J 0.96 2.34 1.40 1.26 0.J0 0.88 1.00 1.11 0.73 1.72 1.41 14.66 16.98 I08°5 86°.e
1979 0.47 1.40 1.90 1.57 1.36 0.56 0.88 1.30 0.12 2.69 1.03 0.47 15.97 118Sb 94°.e
1980 2.34 I.18 2.69 0.54 2.33 0.43 0.63 1.8J 0.73 I.SO 0.38 0.31 15.51 114% 91 ie
1981 0.28 0.60 2.26 0.78 1.95 l.ll 1.61 0.19 1.73 4.52 0.62 0.91 18.36 173% 108%
1982 1.56 0.44 2.04 1.87 1.11 0.73 1.28 1.24 3.03 1.79 2.21 0.60 17.92 132 % 106
1983 0.38 1.20 1.80 2.91 1.79 2.98 2.44 1.71 0.69 3.07 2.63 3.J5 24.97 18i% 147%
1984 0.83 0.70 2.19 2.18 1.16 2.98 2.42 2.4} 2.31 2.08 1.21 1.21 21.92 162% 129°,'0
1985 1.47 1.04 1.40 2.53 0.91 1.02 1.51 0.66 1.01 3.42 2.94 0.59 18.72 1J7°.e 109°.b
1986 0.49 2.1J 1.50 1.71 0.89 1.38 J.00 0.84 2.97 1.73 1.62 0.32 18.74 138°.6 !IO°.e
1987 0.82 1.40 0.96 0.98 2.42 1.18 1.J3 2.11 O.JI 1.00 1.16 1.18 14.89 110°.0 88%
1988 1.25 O.iS 0.98 0.4J 1.28 0.13 0.40 1.28 1.58 0.22 1.77 0.97 11.16 823; 66%
1989 0.97 2.15 1.01 0.35 0.42 0.98 1.57 1.24 1.22 0.3: 0.83 0.80 12.08 89°; 71
1990 0.32 2.25 0.98 2.02 1.71 1.62 0.78 0.63 0.76 2.37 l.Jl 1.04 15.95 118°e 94S'e
1991 1.09 0.28 1.70 0.80 0.35 1.52 1.24 1.03 1.47 D.83 1.74 0.82 12.87 95% 76°,0
1992 0.57 1.00 1.42 1.82 2.54 0.90 2.93 0.70 1.}1 1.21 1.20 1.08 16.68 123% 98°'°
1993 1.67 1.16 1.91 J.43 1.29 0.54 0.71 1.36 1.58 l.ll 1.30 0.65 18.71 178% 110;5
1994 0.32 1.02 0.60 1.44 0.19 0.5J 0.01 2.42 0.90 1.06 2.05 0.37 11.31 Bl% 67°5
1993 1.16 0.86 1.24 1.J5 6.21 1.48 0.65 0.68 2.43 1.64 1.44 0.61 19.75 146% 116°5
1996 2.1J 1.76 0.33 1.67 1.62 1.16 1.07 0.25 1.63 2.11 2.82 1.02 17.75 131°5 105°e
1997 1.97 0.63 O.14 3.27 2.92 1.01 1.53 1.31 3.19 2.16 0.71 0.76 21.84 161 % 129Se
PTD 1.10 1.14 1.48 1.65 1.89 I.16 1.34 1.23 1.60 1.90 1.54 0.9! 16.98
AVG
°.S of PTD 179;'e 57°.5 93e 198% 155°.e 87% ll4°0 124°5 725% 114% 46% 80% 129%
monthly evg
(1) PROTECT TO DATE, MEAN PRECIPITATION
M:\ W EATHER\9)PRECIP.T7.5