2013-05-23_PERMIT FILE - M2013031

• Permit No: M2013031
• IBM Index Class Name: PERMIT FILE
• Doc Date: 5/23/2013
• Doc Name: 112c APPLICATION
• From: OPERATOR
• To: DRMS
• Email Name: KAP
• Email Name: GRM
• Media Type: D
• Archive: No

Exhibit Page 34
EXHIBIT K - CLIMATE INFORMATION
DOLORES AREA, MONTEZUMA COUNTY, COLORADO:
SUMMARY: Average annual precipitation is 18 -19 inches of which approximately 50%
falls during the growing season. Optimum growing season for native plants is from April
to September. The frost -free period varies from 75 to 100 days. Temperature ranges
from -20's to +90's F. Much of the precipitation falls as snow and winters are generally
closed. Summers are warm or hot, winters cold. Precipitation is extremely variable
from year to year. Only available information is from areas several hundred feet lower
and in the Dolores River Valley and may be misleading about the high mesa and south
facing climate of the site.
1. Source(s) of Information: US Bureau of Reclamation, Dolores Project;
Montezuma County Economic Development; The Weather Channel; USDA Natural
Resources Conservation Service
2. Annual Precipitation:
Table K -1. Dolores Precipitation Table
No further information available for Dolores. Variability shown by information for Cortez
(12 miles SW of site)
Normal
Maximum - 1965
Minimum - 1989
Cortez, Colorado 1961 -1990
3. Temperature:
Table K -2. Cortez Temperature Table
13.21 in
21.14 in
5.23 in
48.5 OF
Daily Maximum - 07/13/1971
101 OF
Daily Minimum - 02/08/1933
-31 OF
Cortez, Colorado 1929 -1996
Growing Season
days
r
ft
lip 1,11i III I
No further information available for Dolores. Variability shown by information for Cortez
(12 miles SW of site)
Normal
Maximum - 1965
Minimum - 1989
Cortez, Colorado 1961 -1990
3. Temperature:
Table K -2. Cortez Temperature Table
13.21 in
21.14 in
5.23 in
Mean Annual
48.5 OF
Daily Maximum - 07/13/1971
101 OF
Daily Minimum - 02/08/1933
-31 OF
Cortez, Colorado 1929 -1996
Growing Season
days
Elevation of irrigable area
ft
lip 1,11i III I
Mean Annual
48.5 OF
Daily Maximum - 07/13/1971
101 OF
Daily Minimum - 02/08/1933
-31 OF
Cortez, Colorado 1929 -1996
Growing Season
days
Elevation of irrigable area
ft
4. General Climate:
Montezuma County, in the southwest corner of Colorado, is where the San Juan Mountains meet the
desert canyon country. The area has milder winters than most of Colorado, yet still has four distinct
seasons. Winter weather patterns flow from the southwest and west, usually avoiding the colder storms