Engineering Weather Data AMIL_KQRH_ip.pdf

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Dining Hall Chabelley Airfield Djibouti, Africa
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CAMP LEMONNIER, DJ (Page 1 of 18)

CAMP LEMONNIER, DJ

Latitude = 11.55 N Station ID = AMIL_KQRH Period of Record = 2003 To 2018 Longitude = 43.16 E Elevation = 36 Feet Average Pressure = 29.78 inches Hg

Design Criteria Data

Mean Coincident (Average) Values

Dry Bulb Temperature (T)

Design Value (°F)

Wet Bulb Temperature

(°F)

Humidity Ratio (gr/lb)

Wind Speed (mph)

Prevailing Direction

(NSEW)

Median of Extreme Highs 113 73 57 8.8 VRB 0.4% Occurrence 111 74 66 8.7 VRB 1.0% Occurrence 109 75 74 9.1 VRB 2.0% Occurrence 108 75 75 9.1 VRB Mean Daily Range 10 - - - SSW 97.5% Occurrence 73 68 92 1.8 SSW 99.0% Occurrence 72 67 90 1.8 WSW 99.6% Occurrence 70 65 82 1.7 WSW Median of Extreme Lows 68 63 78 1.7 WSW

Wet Bulb Temperature (T wb

Design Value (°F)

Dry Bulb Temperature

(°F)

Humidity Ratio (gr/lb)

Wind Speed (mph)

Prevailing Direction

(NSEW)

Median of Extreme Highs 89 96 174 4 E 0.4% Occurrence 85 93 164 5.5 E 1.0% Occurrence 84 93 159 5.5 E 2.0% Occurrence 83 92 153 5.5 E

Humidity Ratio (HR)

Design Value (gr/lb)

Dry Bulb Temperature

(°F)

Vapor Pressure

(in. Hg)

Wind Speed (mph)

Prevailing Direction

(NSEW)

Median of Extreme Highs 177 90 1.16 3.5 E 0.4% Occurrence 170 91 1.12 3.7 E 1.0% Occurrence 163 90 1.07 3.7 VRB 2.0% Occurrence 160 91 1.05 4.7 E

Air Conditioning/ Humid Area Criteria Threshold T ≥ 93°F T ≥ 80°F Twb ≥ 73°F Twb ≥ 67°F

# of Hours 1260 3766 3303 4379 Other Site Data

CAMP LEMONNIER, DJ (Page 2 of 18)

Weather Region

Rain Rate 100 Year Recurrence

(in./hr)

Basic Wind Speed 3 sec gust @ 33 ft

50 Year Recurrence (mph)

Ventilation Cooling Load Index (Ton-hr/cfm/yr) Base 75 °F-RH 60%

Latent + Sensible 10 N/A N/A 16.2 + 8.9

Ground Water Temperature (°F) 50 Foot Depth*

Frost Depth 50 Year Recurrence

(in)

Ground Snow Load 50 Year Recurrence

(lb/ft ²)

Average Annual Freeze-Thaw Cycles

89.5 N/A N/A 0

*Note: Temperatures at greater depths can be estimated by adding 1.5 °F per 100 feet additional depth.

CAMP LEMONNIER, DJ (Page 3 of 18)CAMP LEMONNIER, DJ (Page 3 of 18)

P re ci pi ta tio n (I nc he s)

J F M A M J J A S O N D

T em pe ra tu re

F

-30

-20

-10

Average Annual Climate

Mean Precipitation Mean Temperature Mean Dewpoint

CAMP LEMONNIER, DJ (Page 4 of 18)

Long Term Psychrometric Summary

Percent of observations 99% 97.5% 95% 80% 50%

H um id ity

R at io gr /lb

Temperature (F)

-60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120

CAMP LEMONNIER, DJ (Page 5 of 18)

H um id ity

R at io gr /lb

Temperature (F)

-60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120

Psychrometric Summary of Peak Design Values

Saturation Curve 1% Temperature 1% Humidity Ratio 99% Temperature

(°F) / (gr/lb)

MCDB

(°F)

MCWB

(°F)

MCDP

(°F)

MCHR

(gr/lb)

Enthalpy (btu/lb)

1.0% Dry Bulb 109.0 75 74.0 37.5 99.0% Dry Bulb 72.0 90.0 31.1

1.0% Humidity Ratio 163.0 90.0 83.2 81.1 47.2

CAMP LEMONNIER, DJ (Page 6 of 18)

Dry-Bulb Temperature Hours For An Average Year

January February March

Temperature Range

(°F)

To

LST

To

LST

to

LST

Total Obs

M C W B

(°F)

To

LST

To

LST

to

LST

Total Obs

M C W B

(°F)

To

LST

To

LST

to

LST

Total Obs

M C W B

(°F)

115/119 110/114 105/109 100/104 95/ 99 90/ 94 0 0 73.2 1 0 1 76.4 10 0 10 75.1 85/ 89 15 0 15 73 20 1 21 74.4 1 124 8 133 75.4 80/ 84 6 211 51 268 71.7 8 189 59 256 72.3 88 111 164 363 74.3 75/ 79 122 21 178 321 70.5 142 13 157 312 71 126 2 73 201 71.6 70/ 74 107 0 17 124 67.1 70 0 8 78 67 32 0 3 35 66.4 65/ 69 12 0 1 13 63.3 4 0 4 63.5 2 0 2 61

Caution: This summary reflects the typical distribtion of temperature in a typical year. It does not reflect the typical moisture distribution. Because wet bulb temperatures are averaged, this summary understates the annual moisture load.

For accurate moisture load data, see the long-term humidity summary and the ventilation and infiltration load pages in this manual.

CAMP LEMONNIER, DJ (Page 7 of 18)

April May June

Temperature Range

(°F)

To

LST

To

LST

to

LST

Total Obs

M C W B

(°F)

To

LST

To

LST

to

LST

Total Obs

M C W B

(°F)

To

LST

To

LST

to

LST

Total Obs

M C W B

(°F)

115/119 1 1 71.9 110/114 0 0 73.5 16 1 17 72.3 105/109 1 1 72.9 0 32 3 35 73.4 100/104 0 0 69.5 0 11 0 11 76.8 7 45 16 68 76 95/ 99 4 4 74.4 3 77 10 90 79.7 55 114 80 249 78 90/ 94 1 89 4 94 78.1 36 144 80 260 80.1 102 31 119 252 78.1 85/ 89 28 133 86 247 77.7 134 13 146 293 79.6 70 0 21 91 78.5 80/ 84 171 11 146 328 76.2 72 1 13 86 77.8 6 0 0 6 76.5 75/ 79 39 3 4 46 73.3 3 1 0 4 75.1 70/ 74 1 0 1 68.8 65/ 69

Caution: This summary reflects the typical distribtion of temperature in a typical year. It does not reflect the typical moisture distribution. Because wet bulb temperatures are averaged, this summary understates the annual moisture load.

For accurate moisture load data, see the long-term humidity summary and the ventilation and infiltration load pages in this manual.

CAMP LEMONNIER, DJ (Page 8 of 18)

July August September

Temperature Range

(°F)

To

LST

To

LST

to

LST

Total Obs

M C W B

(°F)

To

LST

To

LST

to

LST

Total Obs

M C W B

(°F)

To

LST

To

LST

to

LST

Total Obs

M C W B

(°F)

115/119 1 1 74.1 110/114 29 3 32 73.8 0 13 1 14 74.9 2 0 2 73.8 105/109 0 81 18 99 74.8 0 72 12 84 75.4 20 1 21 74.9 100/104 10 66 44 120 75.2 3 68 21 92 76 1 41 4 46 76.3 95/ 99 122 58 119 299 75.5 70 72 97 239 76.4 24 92 33 149 78.5 90/ 94 96 13 60 169 76.6 127 20 101 248 77.3 79 79 118 276 79.5 85/ 89 19 1 5 25 78.4 44 2 15 61 78.1 115 6 81 202 79.9 80/ 84 1 0 0 1 77 3 1 1 5 76.6 21 0 3 24 78.1 75/ 79 0 0 0 74.6 1 0 1 74.3 70/ 74 65/ 69

Caution: This summary reflects the typical distribtion of temperature in a typical year. It does not reflect the typical moisture distribution. Because wet bulb temperatures are averaged, this summary understates the annual moisture load.

For accurate moisture load data, see the long-term humidity summary and the ventilation and infiltration load pages in this manual.

CAMP LEMONNIER, DJ (Page 9 of 18)

October November December

Temperature Range

(°F)

To

LST

To

LST

to

LST

Total Obs

M C W B

(°F)

To

LST

To

LST

to

LST

Total Obs

M C W B

(°F)

To

LST

To

LST

to

LST

Total Obs

M C W B

(°F)

115/119 110/114 105/109 100/104 1 1 74.4 95/ 99 0 20 0 20 76.6 0 1 1 74.5 90/ 94 5 152 18 175 77.7 0 21 1 22 75.3 85/ 89 64 69 136 269 77 5 168 17 190 74.8 60 0 60 73.4 80/ 84 142 5 90 237 75 91 47 177 315 73.9 17 182 96 295 72.2 75/ 79 37 1 3 41 71.3 134 2 44 180 71.5 135 6 143 284 70.5 70/ 74 0 0 0 0 70.1 10 0 1 11 68.2 91 1 9 101 67.4 65/ 69 4 4 62.9

Caution: This summary reflects the typical distribtion of temperature in a typical year. It does not reflect the typical moisture distribution. Because wet bulb temperatures are averaged, this summary understates the annual moisture load.

For accurate moisture load data, see the long-term humidity summary and the ventilation and infiltration load pages in this manual.

CAMP LEMONNIER, DJ (Page 10 of 18)

Annual

Temperature Range

(°F)

To

LST

To

LST

to

LST

Total Obs

M C W B

(°F)

115/119 1 1 73.2 110/114 0 60 4 64 73.7 105/109 1 209 35 245 74.8 100/104 21 232 87 340 75.8 95/ 99 278 435 342 1055 77.1 90/ 94 451 552 498 1501 78.3 85/ 89 481 611 508 1600 77.4 80/ 84 626 767 803 2196 73.9 75/ 79 736 49 604 1389 71 70/ 74 306 2 38 346 67.1 65/ 69 21 0 1 22 63.1

Caution: This summary reflects the typical distribtion of temperature in a typical year. It does not reflect the typical moisture distribution. Because wet bulb temperatures are averaged, this summary understates the annual moisture load.

For accurate moisture load data, see the long-term humidity summary and the ventilation and infiltration load pages in this manual.

CAMP LEMONNIER, DJ (Page 11 of 18)CAMP LEMONNIER, DJ (Page 11 of 18)

T em pe ra tu re

F

J a n

J a n

F e b

F e b

M a r

M a r

A p r

A p r

A p r

M a y

M a y

J u n

J u n

J u l

J u l

A u g

A u g

S e p

S e p

S e p

O c t

O c t

N o v

N o v

D e c

D e c

Annual Summary of Temperatures

1% Dry Bulb Temp MCWB (1% Dry Bulb) Mean Max Temp Mean Min Temp 99% Min Dry Bulb Temp

CAMP LEMONNIER, DJ (Page 12 of 18)

H um id ity

R at io gr /lb

J a n

J a n

F e b

F e b

M a r

M a r

A p r

A p r

A p r

M a y

M a y

J u n

J u n

J u l

J u l

A u g

A u g

S e p

S e p

S e p

O c t

O c t

N o v

N o v

D e c

D e c

D ry

B ul b T em pe ra tu re

F

Long Term Humidity and Dry Bulb Temperature Summary

1% Max HR Mean Max HR Mean MIN HR

MCDB Temp (1% Max HR)

CAMP LEMONNIER, DJ (Page 13 of 18)

Long Term Humidity and Dry Bulb Temperature Summary

Week Ending

1.0% Temp (°F)

MCWB@

1% Temp

(°F)

Mean Max

Temp (°F)

Mean Min

Temp (°F)

99% Temp (°F)

1.0%

HR

(gr/lb)

MCDB@

1% HR

(°F)

Mean Max

HR

(gr/lb)

Mean Min

HR

(gr/lb)

7-Jan 85 71.5 82.9 73.3 68 121.1 78.1 104.2 90.2

14-Jan 86 75.1 83.1 73.9 68 123.9 81.7 105.5 92.9

21-Jan 86 73.2 82.6 74.4 69 124.6 79.4 108.1 95.9

28-Jan 86 72.5 83.3 74.3 69 123.9 79.1 107.8 96.1

4-Feb 86 73.1 83.2 74.9 70 123.9 80.4 108.8 96.8

11-Feb 85 73.4 82.8 74.6 69 126.7 79.3 107.1 95.6

18-Feb 86 75.1 83.1 75.5 70 128.1 80.8 111.1 99.1

25-Feb 86 74.8 84.1 75.7 72 130.9 81.7 113.4 101

4-Mar 88 73.5 84.3 75.9 70 133 81.3 113.4 100.4

11-Mar 88 74.3 84.6 76.4 71 140 82.3 116 102.6

18-Mar 89 73.7 85.6 77.1 72 140 82.4 118.7 105.4

25-Mar 90 74.6 86.6 78.6 73 140.7 85.2 124.2 109.2

1-Apr 91 75.3 87.2 79.5 75 140.7 83.5 128 113.6

8-Apr 91 76.1 87.5 80.1 77 147 85.9 132.2 117.7

15-Apr 91 77.9 88.1 80.4 76 148.4 83.8 133.5 118.3

22-Apr 95 76.1 89.5 80.9 77 152.6 85.7 136 115.3

29-Apr 94 78.6 90.2 82.3 79 156.1 84.6 142.7 124.8

6-May 97 76.6 91.4 83.5 81 161 86.6 145.8 126.1

13-May 98 75.6 92.9 84 81 162.4 86.5 148.6 124.2

20-May 100 77.5 94.3 84.7 79 170.1 89.1 152.8 123.7

27-May 104 75.6 96 85.6 82 168.7 87.5 152.7 119.8

4-Jun 104 75.4 97.3 87.1 84 172.2 91.9 155.4 113.5

10-Jun 108 73.8 99.2 88.1 84 171.5 91.6 151.9 102

17-Jun 111 71.5 100.7 89.6 85 171.5 93.4 148.9 94.4

24-Jun 113 70.4 101.4 89.9 86 174.3 95 148.1 92.9

1-Jul 113 72.3 103.5 91.4 86 167.3 89 139.1 85.6

8-Jul 112 72.6 104.2 92 87 162.4 92.1 137.1 85.9

15-Jul 111 73.3 104.9 92.5 88 161 93.7 129.7 83.7

22-Jul 113 73.4 106 92.6 88 156.8 90 128.3 81.9

29-Jul 111 73.4 105.8 91.8 88 153.3 91.6 128.1 83.3

5-Aug 111 75.4 104.3 90.8 86 161 91.8 131.8 88.4

12-Aug 111 74.8 104.4 91.3 86 160.3 93.4 129.7 86.6

19-Aug 111 74.2 104 90.7 86 161 91.5 138.8 90.5

26-Aug 111 74.2 103 89.8 85 163.8 90 142.4 93.8

2-Sep 109 74.3 102.2 89.5 84 166.6 90.3 142.9 95.5

9-Sep 110 75.3 101.3 89.6 84 170.1 88.9 145.9 98.9

16-Sep 108 73.9 97.9 87.7 84 170.8 91 153.8 111.7

23-Sep 106 76.3 96.5 86.5 83 173.6 88.7 157.8 119.2

30-Sep 99 80.2 94.2 85.4 81 173.6 88 152.8 126.5

7-Oct 97 76.7 92.9 83.6 79 158.2 88.4 140.9 117.4

14-Oct 97 74.2 92.1 82.8 79 154 86.9 137 112.9

21-Oct 94 78.1 90.4 81.3 77 145.6 85.9 127.7 109

28-Oct 93 73.5 89.5 80 76 140.7 86.1 124.2 105.7

4-Nov 93 72.4 88.8 79.3 75 140.7 84.2 123 104.6

11-Nov 91 75.1 87.3 78.2 75 136.5 81.7 121.5 104.9

18-Nov 90 74.9 86.8 77.5 73 134.4 83 117.7 101.7

25-Nov 88 75.1 86.1 76.8 73 139.3 80.5 116.8 102.2

2-Dec 88 74.6 85.6 76.5 73 132.3 80.4 116.4 102.7

9-Dec 87 73.4 85 75.5 72 132.3 81.6 112.3 98.9

16-Dec 86 73.6 84.3 74.7 70 123.9 79.8 109.3 95.3

23-Dec 86 73.6 84.1 74.4 70 125.3 79.2 107.9 93.6

31-Dec 86 73.6 83.5 74.3 69 123.9 79 107.4 93.7

CAMP LEMONNIER, DJ (Page 14 of 18)

Degree Days, Heating and Cooling (Base 65 F) & Cooling (Base 50F)

Mean Cooling Degree Days Base 50 Mean Heating Degree Days Base 65

D eg re e

D ay s (F

-2500

-2000

-1500

-1000

-500

J F M A M J J A S O N D

Month

Mean Cooling Degree Days (°F) Base

Mean Cooling Degree Days (°F) Base

Mean Heating Degree Days (°F)

Base 65

JAN 800.8 374 0

FEB 769.5 369.1 0

MAR 914.4 475.7 0

APR 989.1 564.5 0

MAY 1153.7 715.7 0

JUN 1273 849.2 0

JUL 1406.1 969.7 0

AUG 1354.4 917 0

SEP 1197.3 773.5 0

OCT 1061 623.5 0

NOV 916.8 491.9 0

DEC 850.9 413.1 0

ANN 12687 7536.9 0

CAMP LEMONNIER, DJ (Page 15 of 18)

Average Ventilation and Infiltration Loads (Outside Air vs 75F, 60% RH summer; 68F, 30% RH winter)

Average Sensible Cooling Load Average Sensible Heating Load Average Latent Cooling (Drying) Load Average Latent Heating (Humidfying) Load

Lo ad

B tu /c fm

-80000

-70000

-60000

-50000

-40000

-30000

-20000

-10000

10000

20000

30000

40000

J F M A M J J A S O N D

Month

Average Sensible Cooling

Load (Btu/cfm)

Average Sensible Heating

Load (Btu/cfm)

Average Latent Cooling

Load (Btu/cfm)

Average Latent Heating

Load (Btu/cfm)

JAN 2711 -4 9602 0

FEB 2858 -1 10083 0

MAR 4842 0 15506 0

APR 7295 0 22165 0

MAY 10982 0 27637 0

JUN 14690 0 18604 -4

JUL 17595 0 10055 -1

AUG 16213 0 13530 -1

SEP 12728 0 23282 0

OCT 8599 0 19600 0

NOV 5423 0 14517 0

DEC 3401 -1 10299 0

ANN 107337 -6 194880 -6

CAMP LEMONNIER, DJ (Page 16 of 18)

Average Annual Solar Radiation - Nearest Available Site Source: National Renewable Energy Laboratory, Golden CO, 1995

Station Information

Shading Geometry in

Dimensionless Units

City, State, WBAN N/A N/A N/A Lat, Lon, Elev N/A N/A N/A Press Stn Type N/A N/A N/A

AVERAGE INCIDENT SOLAR RADIATION

(Btu/sq.ft./day), Percentage Uncertainty = 9

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year

HORIZ. Global

Std.Dev.

Minimum

Maximum

Diffuse

Clear Day Global

NORTH Global

Diffuse

Clear Day Global

EAST Global

Diffuse

Clear Day Global

SOUTH Global

Diffuse

Clear Day Global

WEST Global

Diffuse

Clear Day Global

CAMP LEMONNIER, DJ (Page 17 of 18)

Average Annual Solar Radiation - Nearest Available Site Source: National Renewable Energy Laboratory, Golden CO, 1995

AVERAGE TRANSMITTED SOLAR RADIATION (Btu/sq.ft./day) FOR DOUBLE GLAZING, Percentage Uncertainty = 9

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year

HORIZ. Unshaded

NORTH Unshaded

Shaded

EAST Unshaded

Shaded

SOUTH Unshaded

Shaded

WEST Unshaded

Shaded

AVERAGE INCIDENT ILLUMINENCE (klux-hr) FOR MOSTLY CLEAR AND MOSTLY CLOUDY CONDITIONS, Percentage Uncertainty = 9

March June

9am 11am 1pm 3pm 5pm 9am 11am 1pm 3pm 5pm

HORIZ. M.Clear

M.Cloudy

NORTH M.Clear

M.Cloudy

EAST M.Clear

M.Cloudy

SOUTH M.Clear

M.Cloudy

WEST M.Clear

M.Cloudy

M.Clear (% hrs)

Sept Dec

9am 11am 1pm 3pm 5pm 9am 11am 1pm 3pm 5pm

HORIZ. M.Clear

M.Cloudy

NORTH M.Clear

M.Cloudy

EAST M.Clear

M.Cloudy

SOUTH M.Clear

M.Cloudy

WEST M.Clear

M.Cloudy

M.Clear (% hrs)

CAMP LEMONNIER, DJ (Page 18 of 18)CAMP LEMONNIER, DJ (Page 18 of 18)

Wind Summary - December, January, and February

170180190

350 360

Speed (Kts) 1-5 6-14 15-24 25-34 >34

Calm 15%

2% 4% 6% 8% 10%

Wind Summary - March, April, and May

170180190

350 360

Speed (Kts) 1-5 6-14 15-24 25-34 >34

Calm 14%

2% 4% 6% 8% 10%

CAMP LEMONNIER, DJ (Page 19 of 18)

Wind Summary - June, July, and August

170180190

350 360

Speed (Kts) 1-5 6-14 15-24 25-34 >34

Calm 12%

1% 2% 3% 4% 5%

Wind Summary - September, October, and November

170180190

350 360

Speed (Kts) 1-5 6-14 15-24 25-34 >34

Calm 17%

1% 2% 3% 4% 5% 6% 7%

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