SILVERTHORNE, COLORADO

Average Temperature

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		4.2		-8.6		-6.7		-2.1		3.6		8.8		13.5		16.6		15.6		11.6		5.9		-1.4		-7

Average High Temperature

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		12.6		-1.5		1.2		5.7		11.5		17.4		23.2		26.4		25.2		21.2		14.8		5.6		-0.3

Average Low Temperature

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-4.2		-15.7		-14.4		-9.8		-4.3		0.3		3.7		6.8		6.1		2.1		-2.9		-8.6		-13.7

Highest Recorded Temperature

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		36.7		15.6		14.4		19.4		25		30		35		36.1		36.7		35		28.9		19.4		16.7

Lowest Recorded Temperature

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-43.3		-40.6		-43.3		-32.2		-23.9		-13.9		-6.1		-4.4		-4.4		-10		-17.2		-27.2		-32.2

Average Number of Days Above 90F/32C

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.8		---		---		---		---		---		0.1		0.6		0.1		0.1		---		---		---

Average Number of Days Above 80F/26C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		26.4		---		---		---		---		0.3		4.5		12.7		7.8		1		---		---		---

Average Number of Days Above 70F/21C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		94.8		---		---		---		0.8		5.7		19.8		27.7		25.9		13.7		1.1		---		---

Average Number of Days Above 60F/15C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		150.8		---		---		0.4		6.3		19.1		27.5		30.8		30.8		24.8		10.6		0.5		---

Average Number of Days Above 50F/10C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		197.5		0.1		0.4		5.4		16.2		26.8		29.6		31		31		28.9		21.8		5.9		0.3

Average Number of Days Above 40F/4C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		249.4		2.8		6.7		17.7		25		30.2		30		31		31		29.6		27.6		14.6		3

Average Number of Days Below 70F/21C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		365		31		28		31		30		31		30		31		31		30		31		30		31

Average Number of Days Below 60F/15C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		365		31		28		31		30		31		30		31		31		30		31		30		31

Average Number of Days Below 50F/10C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		359.5		31		28		31		30		31		29.6		28.9		28.1		29.9		31		30		31

Average Number of Days Below 40F/4C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		293.8		31		28		31		29.9		28.8		16.9		5.4		8		23.2		30.7		29.9		31

Average Number of Days Below 32F/0C

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		229.8		30.6		28.1		30.7		27		15.3		3.4		0.4		0.6		9		25.2		28.9		30.7

Average Number of Days Below 20F/-6C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		135.2		29.3		24.8		21.1		7		0.5		---		---		---		0.1		4.5		19.8		28.1

Average Number of Days Below 10F/-12C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		81.9		23.3		17.9		9.2		1		---		---		---		---		---		0.6		9		20.9

Average Number of Days Below 0F/-17C

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		37.4		12.9		9.5		3.6		0.3		---		---		---		---		---		---		1.9		9.1

Average Precipitation

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		381		26		24		35		38		41		31		35		38		33		28		27		25

Average Number of Days With Precipitation

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		101		9		8		10		10		9		7		10		10		7		6		7		8

Most Reported Precipitation in a Month

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		151		73		68		67		78		113		118		101		119		151		88		70		88

Least Reported Precipitation in a Month

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		---		2		10		8		2		---		10		2		2		1		3		3

Most Precipitation Reported in a Day

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		63.5		28.2		32.8		26.7		40.6		33.3		35.6		33		63.5		38.1		38.1		39.4		30.5

Avg. No. of Days w/Precip. Above 0.1in/2.5mm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		46.2		3		2.8		4.3		4.2		5.1		3.5		4.3		4.7		3.6		3.5		4		3.2

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

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		50		4		3		5		5		5		4		5		5		4		3		4		3

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

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6		---		---		---		1		1		1		1		1		1		---		---		---

Avg. No. of Days w/Precip. Above 0.5in/13mm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5.8		0.3		0.3		0.2		0.6		0.9		0.4		0.8		0.6		0.8		0.4		0.3		0.2

Average Snowfall

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		186.9		34.3		30		35.3		19.6		4.3		0.2		---		---		0.5		5.8		25.4		31.5

Average Number of Days With Snow

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		31.1		4.9		5		5.4		3		0.9		---		---		---		0.3		1.8		4.7		5.1

Average Snow Cover

Years on Record: 51

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		7		22		30		22		5		---		---		---		---		---		---		5		15

Most Snow Reported in a Month

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		146.1		146.1		114.3		82.5		86.4		55.9		10.2		---		---		10.2		48.3		119.4		99.1

Avg. No. of Days w/Snow Above 1in/2.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		22.8		3.7		3.9		4.1		2.3		0.6		---		---		---		0.2		1.1		3.6		3.3

Avg. No. of Days w/Snow Above 3in/7.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6.2		1		1.1		1		0.8		0.1		---		---		---		---		0.2		1.1		0.9

Avg. No. of Days w/Snow Above 5in/12.7cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.1		0.5		0.4		0.2		0.1		0.1		---		---		---		---		0.1		0.3		0.4

Avg. No. of Days w/Snowfall Above 10in/25cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.3		---		0.1		---		---		---		---		---		---		---		---		0.1		0.1

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		9767		1575		1287		1145		824		557		281		137		177		413		764		1122		1486

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		17		---		---		---		---		---		1		10		6		---		---		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		975		---		---		---		4		43		188		339		297		99		5		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		10.2		11.2		12.5		13.8		14.9		15.5		15.2		14.1		12.9		11.6		10.4		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		15.9		8.3		11.6		15.8		18.8		21.7		24.3		23.3		20.1		17.5		13.1		9.1		7.6

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.2		2.5		3.5		4.9		6.7		7.9		8.1		7.9		7.1		5.3		3.8		2.8		2.2

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		15.2		17.4		19.6		19.3		19.9		21.1		20.7		19.6		20		18.6		15.3		15

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.2		16.4		18.9		20.9		20		21.5		24.9		23.8		20.9		21.9		20.2		16.9		16.3

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.9		8.3		11.6		15.8		18.8		21.7		24.3		23.3		20.1		17.5		13.1		9.1		7.6

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.7		2.8		3.8		5.3		7.2		8.5		8.8		8.5		7.6		5.9		4.4		3.1		2.4

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.9		17.1		19.3		22.8		21.5		21.7		23.1		23.9		22.7		22.5		21.5		17.6		17.2

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		24.8		19.1		22.5		26.4		24.3		25.4		29.9		31.8		27.2		26.4		24.6		20.3		19.6

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.9		7.2		10.2		14.3		16.1		18.3		21.7		20.6		17.8		15.1		10.6		7.6		6.8

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.6		2.3		3		4.1		6.2		7.4		7.2		6.5		6.2		4.6		3.2		2.5		1.9

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.6		12.4		14.4		17.2		16.3		16.8		18.9		18.4		17.3		16.8		14		12.1		12.9

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.4		12.5		14.6		17.1		14.8		15.4		19.9		18.7		16.5		16.4		13.4		12.1		13.5