Wind chill factor table. The amount of heat loss from exposed human skin is a function of both wind speed and the ambient temperature. The values shown to the right and below the shaded rows indicate the effective temperautre, or wind chill factor, at each combination of wind speed and ambient air temperature. The wind chill factor can be substantially reduced (i.e., the amount of heat loss from your body at each wind speed) by the type of clothes worm while running.

Wind

Speed

(mph)

Air Temperature (°F)

35

30

25

20

15

10

5

0

-5

-10

-15

-20

-25

40

1

-4

-15

-22

-29

-36

-45

-54

-62

-69

-76

-87

-94

35

3

-4

-13

-20

-27

-35

-43

-52

-60

-67

-72

-83

-90

30

5

-2

-11

-18

-26

-33

-41

-49

-56

-63

-70

-78

-87

25

7

0

-7

-15

-22

-29

-37

-45

-52

-58

-67

-75

-83

20

12

3

-4

-9

-17

-24

-32

-40

-46

-52

-60

-68

-76

15

16

11

1

-6

-11

-18

-25

-33

-40

-45

-51

-60

-65

10

21

16

9

2

-2

-9

-15

-22

-27

-31

-38

-45

-52