SAN MARCOS, TEXAS

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Elevation: 197 meters Latitude: 29 51N Longitude: 097 57W

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CURRENT CONDITIONS

Sunrise/Set

07:39 am

09:16 pm
Local Time
6:22 am EDT
12 May, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °F ] °C

TEMPERATURE

Average Temperature

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		19.9		10.1		11.9		15.7		19.8		23.8		27.4		28.7		28.8		25.9		20.9		15.2		10.8

Average High Temperature

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		26.7		16.8		18.8		22.9		26.6		30		33.6		35.2		35.8		32.6		28.2		22.1		17.7

Average Low Temperature

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		13.2		3.4		5		8.6		13.1		17.6		21.2		22.2		21.9		19.3		13.8		8.3		4.1

Highest Recorded Temperature

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		43.9		31.7		37.2		37.8		38.9		41.1		42.8		43.3		43.9		43.9		38.3		36.7		31.7

Lowest Recorded Temperature

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-18.9		-18.9		-15		-8.3		-1.1		4.4		10.6		13.3		10		3.9		-3.3		-8.3		-15.6

Average Number of Days Above 100F/38C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6.6		---		---		---		---		---		0.6		1.9		3.4		0.6		---		---		---

Average Number of Days Above 90F/32C

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		118.7		---		0.2		0.8		2.3		9.8		22.9		28.3		28.5		19.6		6.2		0.2		---

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		198.5		0.7		1.9		6.3		16.1		26.6		29.4		30.8		30.9		28		20.8		6		1.1

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		278.1		8.3		10.8		21		27.4		30.9		30		31		31		29.7		29.2		18.9		9.9

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		327.4		19.1		20.6		27.9		29.6		31		30		31		31		30		30.6		26.8		19.8

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		352.9		26.4		25.8		30.1		29.9		31		30		31		31		30		31		29.3		27.4

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		363		30.4		27.5		31		30		31		30		31		31		30		31		30		30.1

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		262		31		28		30.8		28.5		22.4		9.3		3.7		3.9		16.5		27.5		29.5		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		184.7		30.2		26.7		25.9		18.3		6.1		0.2		---		0.4		4.3		17.2		25.5		29.9

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		124.4		27.8		22.6		17		7.2		0.7		---		---		---		0.4		6.4		16		26.3

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		60.3		18.9		12.2		5.4		0.8		---		---		---		---		---		0.4		6.5		16.1

Average Number of Days Below 32F/0C

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		28.1		9.5		5.7		2.1		0.1		---		---		---		---		---		0.1		2.6		8

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		1		0.2		0.2		---		---		---		---		---		---		---		---		---		0.6

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		0.1		---		---		---		---		---		---		---		---		---		---		---		0.1

PRECIPITATION

Average Precipitation

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		871		52		61		56		82		107		93		60		55		89		91		64		60

Average Number of Days With Precipitation

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		74		7		6		6		6		7		6		5		5		7		6		6		7

Most Reported Precipitation in a Month

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		643		208		262		239		262		365		583		377		280		321		643		364		434

Least Reported Precipitation in a Month

Years on Record: 118

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

Most Precipitation Reported in a Day

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		400.8		70.1		125		101.6		167.6		187.2		355.1		185.9		112		203.2		400.8		230.4		254

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		50.2		3.9		3.6		4.8		3.7		5.8		5.8		3.6		3.1		4.5		4.4		3.5		3.5

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

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		49		4		4		4		4		5		5		3		3		5		4		4		4

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

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		21		1		2		1		2		3		2		2		1		2		2		2		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		21.7		1.3		1.3		1.7		1.7		3.2		3		1.5		1.2		1.9		2		1.7		1.2

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

Years on Record: 118

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

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		1.3		0.5		0.2		0.2		---		---		---		---		---		---		---		---		0.2

Most Snow Reported in a Month

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		25.4		15.2		15.2		12.7		---		---		---		---		---		---		---		---		25.4

DEGREE DAYS

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1637		453		318		180		43		3		---		---		---		2		34		184		419

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2907		5		12		50		141		334		496		586		610		418		196		49		10

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7012		113		164		349		549		797		946		1051		1075		865		627		332		144

SKY CONDITIONS

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.6		10.9		11.6		12.4		13.3		14.1		14.5		14.3		13.6		12.7		11.8		11.1		10.7

SOLAR RADIATION

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.7		10.4		12.4		16		19.3		20.3		23		23.7		21.5		18.1		14.7		11.3		9.7

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.2		3.9		5		6.2		7.4		8.5		8.4		7.9		7.4		6.4		5.1		4.1		3.6

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.5		13.8		15.1		17.5		18.9		18.7		20.3		21.2		20.6		19.1		17.6		14.7		13.2

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.6		14.2		14.2		16.3		18.1		17.4		21.3		23.1		21.1		18.7		17.5		15.3		13.9

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.7		10.4		12.4		16		19.3		20.3		23		23.7		21.5		18.1		14.7		11.3		9.7

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.6		4.2		5.3		6.6		7.9		8.8		9		8.8		8		7		5.7		4.4		3.8

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		21.1		17.6		20		22.3		24		21		22.8		22.9		22.6		22.1		21.4		19.3		16.6

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		23.8		20.4		21.7		24.3		27.8		22.1		27.1		27.1		25.4		24.1		23.5		22.8		19.2

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.6		8.1		9.4		12.1		15.7		16.9		19.9		20.1		19.1		15.6		10.9		8.2		7.3

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.4		3.4		4.2		5.2		6		8		7.5		7.2		6.7		5.7		4.4		3.3		3.2

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.8		10		10.7		12.7		15.2		15.7		17.8		18.2		18.3		16.1		12.2		9.7		9.2

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.5		8.8		8		9.2		11.8		11.9		15.9		16.6		16.7		13.8		9.6		8		8

NEARBY - MAP

NEARBY - LIST

Wimberley, Texas (10 mi / 17 km)
Lake Dunlap, Texas (11 mi / 17 km)
New Braunfels, Texas (12 mi / 20 km)
Canyon Lake, Texas (15 mi / 24 km)
Lockhart, Texas (15 mi / 24 km)

GEOBA.SE

San Marcos, Texas