85	90	95	100
135 (57)
126 (52)	131 (55)
117 (47)	122 (50)	127 (53)	132 (56)
110 (43)	113 (45)	117 (47)	121 (49)
102 (39)	105 (41)	108 (42)	112 (44)
96 (36)	98 (37)	100 (38)	103 (39)
90 (32)	91 (33)	93 (34)	95 (35)
85 (29)	86 (30)	86 (30)	87 (31)

What Are Cooling/Heating Degree Days?

In an attempt to measure the need for air-conditioning, each degree of a day's mean temperature that is above a base temperature, such as 65°F (U.S.) or 18°C (Canada), is considered one cooling degree day. If the daily mean temperature is 75°F, for example, that's 10 cooling degree days.

Similarly, to measure the need for heating fuel consumption, each degree of a day's mean temperature that is below 65°F (18°C) is considered one heating degree. For example, a day with a high of 60°F and low of 40°F results in a mean of 50°, or 15 degrees less than 65°. Hence, that day had 15 heating degree days.

HOW TO MEASURE HAIL

The TORRO HAILSTORM INTENSITY SCALE was introduced by Jonathan Webb of Oxford, England, in 1986 as a means of categorizing hailstorms. The name derives from the private and mostly British research body named the TORnado and storm Research Organisation.

INTENSITY/DESCRIPT ION OF HAIL DAMAGE

H0 True hail of pea size causes no damage

H1 Leaves and flower petals are punctured and torn

H2 Leaves are stripped from trees and plants

H3 Panes of glass are broken; auto bodies are dented

H4 Some house windows are broken; small tree branches are broken off; birds are killed

H5 Many windows are smashed; small animals are injured; large tree branches are broken off

H6 Shingle roofs are breached; metal roofs are scored; wooden window frames are broken away

H7 Roofs are shattered to expose rafters; autos are seriously damaged

H8 Shingle and tile roofs are destroyed; small tree trunks are split; people are seriously injured

H9 Concrete roofs are broken; large tree trunks are split and knocked down; people are at risk of fatal injuries

H10 Brick houses are damaged; people are at risk of fatal injuries