OAKLAND, IOWA

Average Temperature

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9.9		-6.1		-3.3		2.8		10.3		16.4		21.7		24.1		22.7		18.3		11.9		3.3		-3.4

Average High Temperature

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		16.3		-0.3		2.4		9		17.3		23.2		28.2		30.6		29.3		25.3		19		9.2		2.1

Average Low Temperature

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		3.5		-11.8		-9.1		-3.3		3.3		9.6		15.2		17.5		16.2		11.3		4.8		-2.7		-8.8

Highest Recorded Temperature

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		46.7		20.6		23.9		31.7		33.9		40		42.2		46.7		42.8		39.4		33.9		28.3		21.1

Lowest Recorded Temperature

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-35		-35		-33.9		-31.1		-17.8		-6.1		-6.1		2.2		1.7		-5.6		-18.9		-27.2		-34.4

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

Average Number of Days Above 90F/32C

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		28.7		---		---		---		0.2		1.3		5.8		11		7.2		3		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		88.1		---		---		0.2		2.5		6.9		18.1		24.9		21.3		11.7		2.3		0.2		---

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		151		---		0.1		2.1		8.2		18.7		27.7		30.4		29.9		22.7		9.7		1.4		---

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		199.8		0.3		1.3		7.3		17		27.7		29.8		31		31		28.7		19.7		5.6		0.3

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		240.7		2.1		4.5		14.2		24.2		30.7		30		31		31		29.9		27.2		13.1		2.8

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		281.4		7.5		10.3		22.2		28.4		31		30		31		31		30		30.2		20.5		9.4

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		354.8		31		28		31		30		31		28.2		26.2		27.5		29.9		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		294.3		31		28		31		29.8		27.4		14.2		7.2		11.4		22.6		30.6		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		234.3		31		28		30.2		26.9		15.7		2.2		0.2		1.6		12.2		26.1		29.3		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		186		30.9		27.7		28.4		18.7		3.5		0.1		---		---		3.5		15.7		26.8		30.7

Average Number of Days Below 32F/0C

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		148.2		30.1		26.3		23		9.2		1.2		---		---		---		0.8		7.2		21.1		29.3

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		70.9		21.6		15.7		8.2		0.9		---		---		---		---		---		0.4		6.7		17.6

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		35		13.1		8.4		2.1		---		---		---		---		---		---		---		2.2		9.2

Average Number of Days Below 0F/-17C

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		16.7		7.8		4.2		0.6		---		---		---		---		---		---		---		0.3		3.9

Average Precipitation

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		810		21		24		48		76		99		127		93		106		91		60		40		23

Average Number of Days With Precipitation

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		87		5		5		7		9		11		10		8		8		8		6		5		5

Most Reported Precipitation in a Month

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		372		95		81		151		247		246		372		271		355		269		203		183		92

Least Reported Precipitation in a Month

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		---		---		---		---		5		8		5		2		5		---		---		---

Most Precipitation Reported in a Day

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		182.1		39.9		58.4		52.1		83.8		93.2		112.5		101.8		182.1		118.1		93.7		75.2		54.9

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		58.5		2.3		2.6		4.7		6.8		8.3		7.6		6.1		4.9		4.6		4.7		3.3		2.6

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

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		56		3		3		4		6		7		7		6		6		5		4		3		2

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

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		20		---		1		1		2		3		3		2		3		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		22.7		0.5		0.6		1.7		2.3		3.4		3.7		2.7		2.4		2		1.5		1.3		0.6

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

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7		---		---		---		1		1		1		1		1		1		1		---		---

Average Number of Rainy Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		86.5		5		4.7		6.8		8.7		10.1		10.2		8		8.7		7.9		6		4.8		4.7

Most Rain Reported in a Day

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		180		30		50		50		70		70		130		180		180		110		60		70		50

Most Rain Reported in a Month

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1180		90		80		150		240		240		370		270		350		260		140		180		90

Least Rain Reported in a Month

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		430		---		---		---		---		---		---		---		10		10		---		---		---

Average Snowfall

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		68.6		17.3		15.5		13.7		2.3		---		---		---		---		---		1		5.8		12.9

Average Number of Days With Snow

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		14.9		3.8		3.5		2		0.6		---		---		---		---		---		0.2		1.1		3.7

Most Snow Reported in a Month

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		73.7		73.7		49.5		45.7		25.4		0.8		---		---		---		---		27.9		33		73.7

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		8.9		2.1		2.2		1.2		0.3		---		---		---		---		---		0.2		0.7		2.2

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		3.5		0.9		0.9		0.6		0.1		---		---		---		---		---		0.2		0.3		0.5

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		1.1		0.3		0.2		0.3		0.1		---		---		---		---		---		---		---		0.2

Avg. # of Days w/Snow Depth Above 1in/2.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		46.7		15		13.2		4.7		0.4		---		---		---		---		---		0.2		1.3		11.9

Avg. # of Days w/Snow Depth Above 3in/7.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		31.4		10.5		9.4		2.5		0.2		---		---		---		---		---		0.2		0.5		8.1

Avg. # of Days w/Snow Depth Above 5in/12.7cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		18.7		6.3		6.3		1.4		---		---		---		---		---		---		0.1		0.2		4.4

Avg. # of Days w/Snow Depth Above 10in/25cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5		1.6		2.3		0.4		---		---		---		---		---		---		---		---		0.7

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6585		1350		1096		856		470		173		24		4		12		113		412		822		1254

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		898		---		---		---		10		54		192		298		241		93		10		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3192		---		1		26		120		356		618		759		694		436		157		23		1

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		10.1		11.1		12.5		13.9		15.1		15.7		15.3		14.2		12.9		11.5		10.4		9.8

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.2		6.8		9.4		13.2		16.4		19.6		22.2		22.2		19.4		16.3		11.4		7.4		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		5.4		2.7		3.7		5.3		7		8.2		8.6		8.1		7.1		5.5		4		2.9		2.4

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16		12.1		13.4		15.9		16.8		18		19.3		19.7		18.9		18.6		15.9		12		11.1

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.4		12.2		13.2		15.4		15.9		18		21		22		19.9		19.7		16.3		12.5		11.4

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.2		6.8		9.4		13.2		16.4		19.6		22.2		22.2		19.4		16.3		11.4		7.4		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		5.8		2.8		3.9		5.5		7.2		8.5		9.1		8.8		7.7		6.1		4.4		3.1		2.5

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.3		14.6		16.6		19.9		20.1		21.2		22.5		21.9		21.2		21.6		20.8		17		14.5

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		22.1		15.5		17.7		21.7		21.7		24.4		28.7		26.9		24.2		24.8		23.6		19.5		16

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.9		5.9		6.7		9.7		13.1		14		18.4		16.6		15.5		12.3		8.5		4.9		4.9

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.9		2.5		3.4		4.7		6.5		7.5		7.5		7.4		6.6		4.8		3.3		2.5		2.1

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.7		9.8		8.3		10.8		13.1		12.8		16.1		14.9		15		13.4		10.7		6.8		8.3

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.7		9.1		6.8		8.3		10.1		8.9		14.4		12.2		12.7		11.4		9.1		5.6		7.8