2010-11-12_PERMIT FILE - C1981010A ‎(14)‎

• Permit No: C1981010A
• IBM Index Class Name: Permit File
• Doc Date: 11/12/2010
• Doc Name: pages 2-1 to 2-57
• Section_Exhibit Name: 2.0 Environmental Resources - 2.1 Climatology & 2.2 Air Quality
• Media Type: D
• Archive: Yes

_: Table 2.1-2. The probabilities for freezing temperatures (32°F or less) for
Craig, Colorado, including the probabilities for Late freezes in the spring
(month/day), for early freezes in [he fall (month/day), and for [he freeze
free period (days) between. (1)
Probability of Freeze Occurring Later Date in Spring (Mo/Da) Than Indicated
Temp .10 .20 .30 .40 .50 .60 .70 .BO .90
(°F)
32 6/23 6/18 6/13 6/10 6/6 6/3 5/30 S/26 5/20
28 6/9 6/2 5/28 5/24 5/20 5/16 5/11 5/6 4/29
24 5/20 5/14 5/9 5/5 5/1 4/28 4/24 4/19 4/13
20 5/7 5/1 4/27 4/23 4/20 4/16 4/13 4/8 4/3
16 4/24 4/19 4/15 4/11 4/8 4/5 4/2 3/29 3/23
0/0 Probability of occurrence of threshold temp is less than indicated
prob ability.
Probability of Freeze Occurring Earlier Da
Temp. .10 .20 .30 .40 .50
(°F)
32 8/16 8/24 8/20 9/3 9/8
28 9/8 9/13 9/17 9/20 9/22
24 9/16 9/22 9/26 9/29 10/2
20 10/1 10/7 10/11 10/14 10/17
16 10/16 10/20 10/24 10/26 10/29
0/0 Probability of occurrence of threshold
probability.
------------------------------------------
Ce in Fa11 (M
.60 .70
9/13 9/18
9/25 9/28
10/5 10/8
10/20 10/23
11/1 11/4
temp is less
~/Da) Than Indicated
.80 .90
9/24 10/2
10/1 10/6
10/12 10/17
10/27 11/2
11/7 11/11
than indicated
Probability of Longer than Indicated Freeze Free Period (Days)
Temp .10 .20 .30 .40 .50 .60 .70 .80 .90
(°F)
32 125 114 106 99 93 87 80 72 61
28 147 140 134 129 125 121 116 110 103
24 173 166 161 157 153 149 144 139 132
20 197 191 187 183 180 176 173 168 162
16 222 216 211 207 203 199 195 190 184
(1) Based on NOAH records for Craig from 1951 through 1973.
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