DEER TRAIL, COLORADO

Average Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		7.1		-5.4		-2.4		2.2		6.3		11.4		16.6		19.2		17.9		14.2		8.3		0.7		-4.4

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		15.4		2		5.1		9.9		15.1		20.5		26.4		28.4		26.8		22.9		16.9		8.1		2.9

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-1.4		-12.9		-10		-5.7		-2.6		2.3		6.8		9.9		9		5.4		-0.3		-6.7		-11.9

Highest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		30.8		7.6		9.6		14.2		18.8		24.7		28.9		30.8		29.3		25.6		19.9		13.8		9

Lowest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-17.7		-17.7		-14.5		-8.6		-5.7		0.7		5.2		8.4		7.1		3		-2.1		-9.7		-16.1

Average Precipitation

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		439		8		10		26		48		80		58		81		59		26		22		13		7

Average Number of Days With Precipitation

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		65		3		3		6		6		9		8		8		7		4		4		4		3

Most Reported Precipitation in a Month

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		186		26		20		58		131		128		127		186		122		58		60		21		18

Least Reported Precipitation in a Month

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		---		---		2		11		29		16		27		14		1		---		1		---

Most Precipitation Reported in a Day

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		101.6		10.7		16.3		32.8		50.8		97.8		44.5		101.6		50.8		38.1		22.4		12.9		12.2

Avg. No. of Days w/Precip. Above 0.2in/5mm

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		38		1		2		3		4		6		5		6		4		2		2		2		1

Avg. # of Days w/Precip. Above 0.4in/10mm

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		12		---		---		1		1		2		2		2		2		1		1		---		---

Avg. No. of Days w/Precip. Above 1in/25mm

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4		---		---		---		---		1		1		1		1		---		---		---		---

Average Snowfall

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		109.5		8.4		10.2		23.4		21.3		2		1		---		---		7.4		12.2		12.4		11.2

Most Snow Reported in a Month

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		58.4		14		17.8		47		58.4		7.6		7.6		---		---		27.9		49.5		17.8		27.9

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4194.4		737.2		581.7		502.2		362.8		216.7		67.8		15.6		35.6		126.7		311.7		529.4		707.2

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		81.7		---		---		---		---		1.1		16.1		40.6		21.7		2.2		---		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		895.2		---		---		---		---		43.1		198.3		284.2		244.6		125		---		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		10.3		11.2		12.5		13.8		14.9		15.5		15.2		14.1		12.9		11.6		10.5		9.9

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.3		7.8		11.1		15.3		19.3		22.3		25.4		24.7		21.9		18.2		13.3		8.9		7.1

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.1		2.7		3.6		5		6.6		7.7		7.7		7.4		6.5		5		3.7		2.8		2.3

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.5		13.8		15.9		18.8		19.8		20.4		22		22		21.5		21		18.9		14.9		13.5

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.8		14.7		17.2		19.8		21.1		22.8		27.2		26.8		24.7		23.6		20.6		16.3		14.6

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.3		7.8		11.1		15.3		19.3		22.3		25.4		24.7		21.9		18.2		13.3		8.9		7.1

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.6		2.8		4		5.5		7.1		8.5		8.7		8		7.2		5.7		4.1		3.2		2.6

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		21		15.7		19.2		22.6		23		22.5		24.3		23.1		23.5		22.9		21.6		17.7		16.3

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		25.3		17.6		22.6		26.1		27.3		27.4		33.3		29.5		29.1		27		24.7		20.6		18.6

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14		6.8		8.8		13.1		16.7		16.9		22		23.1		19.3		16.2		12.1		7.1		5.8

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.5		2.5		3		4.1		5.7		7.1		6.6		7		5.8		4.5		3.2		2.4		2

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.5		11.6		11.6		15.4		17		15.5		19.1		20.6		18.9		18.2		16.7		11		10.2

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.5		11.4		10.9		14.6		15.9		13.1		20.4		23.5		19.5		18.8		17.3		10.5		9.8