UFC 3-400-02
28 FEBRUARY 2003
Figure 2-1. Sample Data Set Page 1
SCOTT AFB/BELLEVILLE
IL
Latitude = 38.55 N
WMO No. 724338
Longitude = 89.85 W
Elevation = 453 feet
Period of Record = 1967 to 1996
Average Pressure = 29.52 inches Hg
Design Criteria Data
Mean Coincident (Average) Values
Wet Bulb
Humidity
Wind
Prevailing
Design
Temperature
Ratio
Speed
Direction
Value
o
o
( F)
(gr/lb)
(mph)
(NSEW)
Dry Bulb Temperature (T)
( F)
Median of Extreme Highs
99
78
110
7.3
SSW
0.4% Occurrence
95
78
117
7.6
S
1.0% Occurrence
92
76
115
7.7
S
2.0% Occurrence
90
75
111
7.6
S
Mean Daily Range
19
-
-
-
-
97.5% Occurrence
16
14
8
7.6
NW
99.0% Occurrence
9
8
6
7.6
NW
99.6% Occurrence
3
2
4
7.5
NNW
Median of Extreme Lows
-3
-4
3
7.0
NW
Mean Coincident (Average) Values
Dry Bulb
Humidity
Wind
Prevailing
Design
Temperature
Ratio
Speed
Direction
Value
o
(oF)
( F)
(gr/lb)
(mph)
(NSEW)
Wet Bulb Temperature (Twb)
Median of Extreme Highs
82
92
146
6.8
S
0.4% Occurrence
80
91
136
6.6
S
1.0% Occurrence
78
88
128
6.6
S
2.0% Occurrence
77
87
125
6.4
S
Mean Coincident (Average) Values
Dry Bulb
Vapor
Wind
Prevailing
Design
Temperature
Pressure
Speed
Direction
Value
o
( F)
(in. Hg)
(mph)
(NSEW)
Humidity Ratio (HR)
(gr/lb)
Median of Extreme Highs
153
89
1.00
6.0
S
0.4% Occurrence
142
87
0.94
5.2
S
1.0% Occurrence
134
85
0.88
5.8
S
2.0% Occurrence
129
84
0.85
5.2
S
T > 93oF
T > 80oF
Twb > 73oF
Twb > 67oF
Air Conditioning/
# of Hours
84
1033
773
1897
Humid Area Criteria
Other Site Data
Rain Rate
Basic Wind Speed
Ventilation Cooling Load Index
(Ton-hr/cfm/yr) Base 75oF-RH
Weather
100 Year Recurrence
3 sec gust @ 33 ft
60%
Region
(in./hr)
50 Year Recurrence (mph)
Latent + Sensible
7
3.3
90
2.7 + 1.1
Ground Water
Frost Depth
Ground Snow Load
Average Annual
o
Temperature ( F) 50 Year Recurrence
50 Year Recurrence
Freeze-Thaw Cycles
2
50 Foot Depth *
(in.)
(lb/ft )
(#)
57.9
38
15
53
*NOTE: Temperatures at greater depths can be estimated by adding 1.5oF per 100 feet additional depth.
5
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