06-SAFB_Climatic_Data.pdf

OP E R A T I O N A L CL I M A T I C DA T A SU M M A R Y (OCDS- I I )

LOCATION ID

ICAO_KBLV

STATION NAME

SCOTT AFB MIDAMERIC, IL

PERIOD OF RECORD

Mean: 2007/01/01 - 2016/12/31

Extreme: 1938/01/01 - 2017/11/30

UTC TO LST

-6

LOCATION(DEGREES)

N 38.545 W 89.835

ELEVATION(FEET)

PREPARED BY

557WW /14WS

YEAR(S)

Period of Record (see detailed POR >>>)

DETAILED POR

1938-2016

A U T H O R I T A T I V E C L I M A T E S U M M A R Y - D A T A Q U A L I T Y A N D Q U A N T I T Y S U F F I C I E N T T O P R O D U C E A C C U R A T E C L I M A T O L O G I C A L V A L U E S

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TEMPERATURE

PARAMETER JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

Temperature Extreme Maximum (°F) 75 82 90 93 97 106 110 104 103 95 84 75 110

Temperature Mean Maximum (°F) 40 43 59 69 77 87 88 88 81 70 56 44 67 Temperature Mean (°F) 31 33 46 57 65 75 77 76 69 58 46 37 56

Temperature Mean Minimum (°F) 23 25 38 47 57 66 68 67 59 48 37 29 47 Temperature Extreme Minimum (°F) -19 -12 -3 22 29 44 48 44 27 23 4 -13 -19 Temperature Maximum Range (°F) 50 47 49 47 41 41 36 36 50 47 47 43 50

Days With Temperature >= 90°F 0 0 0 0 2 11 13 13 4 1 0 0 43 Days With Temperature <= 32°F 27 23 12 2 0 0 0 0 0 1 12 23 100 Days With Temperature <= 0°F 1 0 0 0 0 0 0 0 0 0 0 0 1

* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

PRECIPITATION

PARAMETER JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

Precipitation Period Maximum (In) 8.9 8.0 10.0 12.5 15.5 17.2 11.6 21.1 10.9 11.5 10.0 9.1 58.7

Precipitation Period Mean (In) 2.3 2.3 3.4 4.2 4.2 4.3 3.8 3.6 3.4 3.0 3.4 3.0 40.8 Precipitation Period Minimum (In) 0.1 0.3 0.6 1.1 0.7 0.9 0.4 0.1 0.1 0.1 0.3 0.1 20.6

Precipitation Period Daily Maximum (In) 3.6 3.5 3.6 6.4 4.1 8.1 5.5 9.2 4.4 4.0 6.7 3.6 9.2 Snowfall Period Maximum (In) 23.2 14.0 20.4 17.3 0.0 0.0 0.0 0.0 0.0 0.2 12.7 23.1 34.3

Snowfall Period Mean (In) 4.8 3.5 2.5 0.5 0.0 0.0 0.0 0.0 0.0 0.0 1.1 2.9 15.6 Snowfall Period Daily Maximum (In) 12.0 12.1 7.3 9.5 0.0 0.0 0.0 0.0 0.0 0.2 10.3 13.6 13.6

Days with liquid >= Trace 6 4 4 2 4 3 4 4 3 3 3 5 46 Days with liquid >= 0.01" 7 8 9 11 12 9 8 7 8 8 8 8 103 Days with liquid >= 0.5" 1 1 2 4 3 3 3 2 2 3 2 2 30

Days with snow >= Trace 6 5 3 1 0 0 0 0 0 # 2 5 22 Days with snow >= 0.05" 3 3 2 # 0 0 0 0 0 0 1 2 11 Days with snow >= 1.5" 1 1 1 # 0 0 0 0 0 0 # 1 4

* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

MOISTURE

PARAMETER JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

Relative Humidity Mean Maximum (%) 88.2 88.8 91.1 90.3 95.1 96.1 96.7 97.3 97.3 94.5 91.5 93.6 93.4 Relative Humidity Mean Minimum (%) 51.3 49.0 45.0 42.0 49.1 48.6 50.6 48.7 47.8 45.2 48.5 60.0 48.9

Vapor Pressure Mean (In Hg) 0.15 0.15 0.26 0.36 0.51 0.66 0.73 0.71 0.58 0.38 0.26 0.20 0.41 Dew Point Temperature Mean (°F) 24 26 38 48 58 66 69 68 62 49 39 32 48

Dew Point Temperature Extreme Maximum (°F) 66 66 70 75 82 88 87 88 83 76 72 67 88 Dew Point Temperature Extreme Minimum (°F) -38 -27 -16 5 14 29 36 36 17 3 -7 -27 -38

* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

WIND

PARAMETER JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

Prevailing Wind Direction NW NW $S S $S $S $S $S $N $S $S $S $S

Wind Speed Mean for Prevailing Wind Direction (kts) 11.1 11.1 10.3 10.5 8.9 7.8 6.0 6.4 5.8 8.2 8.9 8.9 8.5 Wind Speed Mean for All Wind Directions (kts) 7.6 7.8 7.4 7.6 6.0 5.4 3.9 3.5 3.7 5.6 6.2 7.0 6.0

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Attachment 6

Wind Speed Maximum (kts) 49.0 40.0 39.8 42.0 42.9 42.0 48.0 39.0 43.9 39.0 39.0 39.0 49.0 Gust Speed Maximum (kts) 55.0 68.0 66.0 65.1 84.1 90.1 80.0 66.8 53.0 54.0 55.9 53.0 90.1

* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

PRESSURE

PARAMETER JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

Pressure Altitude Extreme Maximum (ft) 1361.5 1466.5 1263.1 1273.0 1158.1 997.4 797.2 751.3 1115.5 1200.8 1164.7 1145.0 1466.5

* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

WEATHER OCCURRENCE

PARAMETER JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

Fog Days Mean (FG/BR) 10 10 13 10 13 10 11 14 16 11 10 13 142

Thunderstorm Days Mean 1 1 3 6 8 8 8 5 4 3 1 2 49 Precipitation Days Mean 14 13 15 14 17 15 16 13 14 11 11 14 167

Rain Days Mean 9 8 14 14 17 15 15 13 13 11 9 11 149 Freezing Rain Days Mean 2 3 0 0 0 0 0 0 0 0 # 2 8

* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

CEILING AND VISIBILITY

PARAMETER JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

Cloud Cover Mean (x/8) 5 5 5 4 4 3 3 3 3 4 4 6 4

* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

% FREQUENCY OF WIND > 25 KTS

HOURS JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

17-19 LST 6.2 2.8 4.5 7.9 2.1 2.4 1.4 1.3 1.5 1.5 2.3 2.0 3.0

20-22 LST 4.2 2.9 3.5 3.9 2.0 1.4 1.5 0.1 0.8 1.2 1.5 3.3 2.2

23-01 LST 3.0 2.3 1.7 2.8 1.5 1.0 0.5 0.7 0.4 0.9 1.6 3.3 1.6

02-04 LST 4.1 3.7 2.2 1.3 0.9 1.4 0.2 0.1 0.0 1.1 1.8 2.2 1.5

05-07 LST 4.2 4.0 1.2 3.9 1.1 1.2 0.4 0.1 0.3 0.1 0.7 2.4 1.6

08-10 LST 3.3 6.1 4.5 5.0 1.4 1.4 0.4 0.1 1.3 1.1 2.7 4.1 2.6

11-13 LST 4.6 6.9 7.4 8.0 4.0 2.3 1.1 0.3 1.4 2.8 5.3 7.2 4.4

14-16 LST 5.0 8.0 8.4 13.1 5.3 4.1 2.7 2.5 1.7 3.0 2.9 5.8 5.2

All Hours 4.3 4.6 4.0 5.6 2.3 1.8 1.0 0.6 0.8 1.4 2.3 3.7 2.7

* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

% FREQUENCY OF FOG (FG/BR)

HOURS JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

17-19 LST 12.8 15.5 13.3 7.5 6.2 3.9 7.4 9.3 7.3 7.8 13.7 20.3 10.7

20-22 LST 21.2 20.4 16.1 13.5 9.6 8.7 7.5 15.7 23.0 11.1 16.1 23.8 15.9

23-01 LST 23.4 25.8 19.6 16.5 16.2 15.9 22.6 30.8 37.1 17.3 19.1 25.5 22.9

02-04 LST 21.9 20.9 25.0 20.5 26.0 24.5 30.4 46.7 43.3 24.5 27.0 24.2 29.0

05-07 LST 19.6 21.1 29.6 19.6 21.3 17.8 23.1 36.4 36.5 27.1 23.4 27.5 25.7

08-10 LST 16.6 21.5 16.0 9.5 9.0 8.0 6.7 3.2 13.2 14.2 13.6 26.7 13.4

11-13 LST 16.7 13.0 8.3 8.5 7.9 4.5 3.1 4.2 5.6 7.9 10.9 19.1 9.3

14-16 LST 15.0 14.0 12.1 8.5 7.0 5.2 4.4 3.9 3.8 7.7 13.4 18.5 9.6

All Hours 18.6 19.2 18.0 13.2 13.4 11.7 14.3 21.9 24.0 15.3 17.5 23.4 17.7

* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

% FREQUENCY OF THUNDERSTORM

HOURS JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

17-19 LST 0.4 0.6 2.2 7.2 6.0 7.5 9.0 7.3 8.2 1.6 0.0 1.1 4.1

20-22 LST 0.9 2.2 1.7 10.5 7.2 7.6 4.9 3.7 4.0 2.3 2.0 0.4 3.9

23-01 LST 0.0 0.2 0.7 5.0 2.9 4.1 5.0 2.8 3.4 1.8 0.9 0.3 2.3

02-04 LST 1.1 0.6 0.5 2.8 2.6 5.4 3.8 3.3 2.1 1.8 0.4 0.5 2.1

05-07 LST 0.7 0.2 0.6 5.5 3.9 6.6 2.6 2.9 1.4 2.3 0.0 0.7 2.2

08-10 LST 0.0 0.7 1.3 5.8 2.9 4.3 3.9 1.1 1.9 1.3 0.0 0.5 1.9

11-13 LST 0.0 0.2 0.7 7.3 6.9 8.7 5.6 1.8 1.2 3.4 1.5 0.8 3.2

14-16 LST 0.2 0.4 3.2 4.6 10.9 11.3 9.8 5.7 4.6 3.3 0.0 1.0 4.5

All Hours 0.4 0.6 1.3 6.1 5.3 6.8 5.4 3.4 3.1 2.2 0.6 0.6 3.0

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* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

% FREQUENCY OF RAIN

HOURS JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

17-19 LST 7.0 9.2 12.9 20.2 19.0 13.3 16.1 18.0 13.7 16.9 13.7 16.9 14.7

20-22 LST 8.7 13.1 14.9 25.8 19.9 15.7 11.2 11.0 10.5 15.1 17.5 12.9 14.7

23-01 LST 10.9 10.4 15.3 18.7 14.9 10.5 9.8 9.3 9.8 13.1 13.9 15.4 12.6

02-04 LST 8.1 8.5 11.9 15.8 13.7 12.2 11.6 10.8 12.2 12.7 14.0 14.3 12.2

05-07 LST 6.5 8.1 15.5 17.5 18.5 19.6 15.8 10.8 14.0 14.4 11.4 14.9 13.9

08-10 LST 8.2 9.1 14.4 17.4 19.7 16.5 15.2 11.6 17.1 18.0 13.3 16.5 14.8

11-13 LST 8.7 8.0 11.3 20.4 19.6 14.2 13.4 12.1 13.7 18.1 15.7 14.5 14.2

14-16 LST 8.2 8.3 13.8 21.6 24.6 17.3 15.9 12.1 14.4 17.9 15.2 16.8 15.7

All Hours 8.3 9.4 13.8 19.6 18.5 14.8 13.5 11.7 13.0 15.6 14.3 15.2 14.0

* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

% FREQUENCY OF SNOW OR ICE PELLET

HOURS JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

17-19 LST 8.1 12.2 5.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.5 5.1 3.0

20-22 LST 11.5 10.5 3.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.2 2.6

23-01 LST 12.6 14.2 3.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 2.7 2.6

02-04 LST 13.5 14.1 4.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.9 2.8

05-07 LST 12.3 15.8 4.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.0 3.0

08-10 LST 9.1 17.6 4.2 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.4 5.3 3.1

11-13 LST 8.3 11.1 4.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.0 5.8 2.8

14-16 LST 8.6 13.4 4.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.9 6.1 3.2

All Hours 10.6 13.6 4.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.5 5.0 2.9

* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

% FREQUENCY OF CEILING & VISIBILITY < 100.00 FT / 0.25 MI

HOURS JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

17-19 LST 0.0 0.0 0.1 0.0 0.1 0.1 0.0 0.1 0.1 0.1 0.1 0.2 0.1

20-22 LST 0.0 0.0 0.1 0.0 0.0 0.1 0.1 0.0 0.0 0.0 0.1 0.0 0.0

23-01 LST 0.1 0.2 0.3 0.0 0.0 0.2 0.0 0.0 0.2 0.0 0.2 0.2 0.1

02-04 LST 0.0 0.1 0.1 0.1 0.0 0.0 0.0 0.2 0.1 0.0 0.1 0.0 0.1

05-07 LST 0.1 0.0 0.1 0.1 0.1 0.0 0.1 0.2 0.3 0.0 0.2 0.1 0.1

08-10 LST 0.0 0.1 0.1 0.0 0.2 0.2 0.0 0.0 0.0 0.0 0.3 0.3 0.1

11-13 LST 0.1 0.1 0.0 0.0 0.0 0.1 0.2 0.1 0.0 0.1 0.1 0.0 0.1

14-16 LST 0.0 0.0 0.0 0.2 0.1 0.1 0.0 0.0 0.0 0.2 0.2 0.0 0.1

All Hours 0.0 0.1 0.1 0.0 0.1 0.1 0.0 0.1 0.1 0.0 0.2 0.1 0.1

* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

% FREQUENCY OF CEILING & VISIBILITY < 200.00 FT / 0.50 MI

HOURS JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

17-19 LST 0.4 0.0 0.4 0.0 0.2 0.4 0.2 0.1 0.1 0.2 0.2 0.4 0.2

20-22 LST 0.9 0.1 0.2 0.1 0.0 0.2 0.1 0.0 0.0 0.0 1.2 0.6 0.3

23-01 LST 0.8 0.5 0.9 0.2 0.0 0.4 0.1 0.0 0.8 0.2 1.3 1.7 0.6

02-04 LST 1.3 0.7 1.3 0.9 0.8 0.6 0.5 0.9 1.1 0.6 1.6 1.6 1.0

05-07 LST 1.1 0.8 2.2 1.0 0.9 0.9 1.1 2.1 1.7 0.9 2.5 2.5 1.5

08-10 LST 0.8 1.1 0.7 0.3 0.3 0.3 0.0 0.0 0.4 0.2 1.6 2.0 0.6

11-13 LST 0.4 0.1 0.0 0.1 0.1 0.2 0.2 0.1 0.0 0.2 0.3 0.2 0.2

14-16 LST 0.1 0.2 0.1 0.3 0.4 0.7 0.1 0.0 0.1 0.2 0.2 0.2 0.2

All Hours 0.7 0.4 0.7 0.4 0.3 0.5 0.3 0.4 0.5 0.3 1.1 1.1 0.6

* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

% FREQUENCY OF CEILING & VISIBILITY < 300.00 FT / 1.00 MI

HOURS JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

17-19 LST 1.4 0.6 0.9 0.4 0.6 0.6 0.3 0.4 0.2 0.7 1.6 2.5 0.8

20-22 LST 2.3 0.5 1.2 0.7 0.2 0.3 0.1 0.2 1.1 1.2 1.8 2.9 1.0

23-01 LST 2.2 2.0 1.3 0.7 0.9 0.8 1.0 0.4 2.0 1.5 2.0 3.5 1.5

02-04 LST 2.5 2.5 2.2 2.0 2.0 0.8 1.7 3.4 2.8 1.6 2.8 3.8 2.3

05-07 LST 3.3 2.5 3.8 2.4 2.3 1.8 2.2 4.8 3.8 2.3 3.8 5.5 3.2

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08-10 LST 1.9 1.9 1.6 1.7 1.2 0.8 0.7 0.2 1.8 0.7 2.5 3.4 1.5

11-13 LST 1.9 0.8 0.8 0.4 0.3 0.3 0.3 0.1 0.1 1.0 1.0 1.2 0.7

14-16 LST 1.3 0.7 0.8 0.7 0.9 0.9 0.3 0.1 0.2 0.3 0.7 1.9 0.7

All Hours 2.1 1.4 1.6 1.1 1.0 0.8 0.8 1.2 1.5 1.2 2.0 3.1 1.5

* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

% FREQUENCY OF CEILING & VISIBILITY < 500.00 FT / 1.50 MI

HOURS JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

17-19 LST 4.1 2.0 2.3 0.9 0.7 0.7 0.3 0.6 0.6 1.5 2.8 5.5 1.8

20-22 LST 5.1 2.4 2.0 1.5 0.6 0.6 0.7 0.5 1.9 1.9 2.7 5.6 2.1

23-01 LST 4.2 5.6 2.6 3.2 1.1 1.2 1.5 1.6 3.5 2.5 3.2 6.1 3.0

02-04 LST 4.7 5.6 3.8 4.5 3.1 2.1 3.3 5.6 5.6 3.6 4.5 6.3 4.4

05-07 LST 5.5 4.4 5.4 5.1 3.6 2.3 3.9 6.2 5.5 3.8 5.1 8.0 4.9

08-10 LST 4.8 4.3 4.0 3.5 2.5 1.3 1.6 0.7 2.4 2.2 3.8 7.1 3.2

11-13 LST 4.4 2.8 2.0 1.2 0.8 0.6 0.4 0.2 1.1 1.5 2.6 5.1 1.9

14-16 LST 3.7 2.2 2.1 0.9 0.9 0.9 0.4 0.2 0.4 0.9 2.7 4.7 1.7

All Hours 4.6 3.7 3.0 2.6 1.7 1.2 1.5 1.9 2.6 2.2 3.4 6.0 2.9

* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

% FREQUENCY OF CEILING & VISIBILITY < 800.00 FT / 2.00 MI

HOURS JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

17-19 LST 7.4 4.7 4.8 2.5 1.2 1.1 1.0 0.8 1.4 3.4 5.3 10.0 3.6

20-22 LST 8.2 6.1 3.9 3.8 1.9 1.0 1.3 1.3 3.1 3.4 5.6 10.6 4.2

23-01 LST 7.6 9.4 4.8 4.8 3.7 1.9 2.3 3.5 5.6 5.0 6.4 10.8 5.5

02-04 LST 8.3 9.2 7.2 7.8 5.4 3.7 4.3 7.0 8.6 6.7 7.5 11.4 7.2

05-07 LST 8.4 7.8 8.2 7.8 7.6 4.6 5.9 8.6 8.0 5.6 8.8 13.6 7.9

08-10 LST 8.3 8.2 6.7 6.4 4.8 2.6 3.6 2.4 6.1 6.3 7.6 12.3 6.3

11-13 LST 7.6 6.3 4.5 3.2 1.9 1.1 1.3 0.2 2.7 3.5 5.9 11.0 4.1

14-16 LST 8.0 6.0 3.7 2.2 1.5 1.2 1.0 0.5 1.2 2.7 5.6 9.5 3.6

All Hours 8.0 7.2 5.5 4.8 3.5 2.1 2.6 3.0 4.6 4.6 6.6 11.1 5.3

* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

% FREQUENCY OF CEILING & VISIBILITY < 1000.00 FT / 2.00 MI

HOURS JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

17-19 LST 9.3 6.2 5.2 3.1 2.0 1.3 1.2 1.0 1.9 4.0 6.5 12.6 4.5

20-22 LST 8.8 8.6 4.8 4.7 2.9 1.3 1.5 1.4 3.7 4.8 7.3 11.7 5.1

23-01 LST 8.2 11.1 6.6 6.0 4.8 2.2 2.5 3.7 6.3 6.7 7.7 13.1 6.6

02-04 LST 9.7 11.1 9.0 9.0 6.7 4.6 4.8 7.5 10.2 8.2 9.5 14.8 8.7

05-07 LST 9.3 9.9 10.3 9.5 8.4 5.7 6.2 9.1 9.3 7.6 10.0 17.8 9.4

08-10 LST 9.6 10.5 9.5 8.5 6.8 3.7 4.9 3.8 7.5 7.9 9.5 15.9 8.2

11-13 LST 8.8 7.9 5.7 5.2 3.1 1.8 1.7 0.7 3.6 4.5 8.9 15.1 5.6

14-16 LST 9.8 7.7 4.8 3.0 3.1 1.4 1.2 0.7 1.5 3.5 7.5 12.8 4.7

All Hours 9.2 9.1 7.0 6.1 4.7 2.7 3.0 3.5 5.5 5.9 8.4 14.2 6.6

* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

% FREQUENCY OF CEILING & VISIBILITY < 1500.00 FT / 3.00 MI

HOURS JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

17-19 LST 11.5 11.8 7.7 4.7 3.9 2.0 1.8 2.2 3.5 5.0 10.1 16.9 6.7

20-22 LST 11.4 12.2 8.4 6.1 5.8 2.1 2.1 2.5 5.4 6.2 10.4 17.8 7.5

23-01 LST 10.4 14.7 12.0 8.2 7.2 3.5 3.8 5.0 9.0 8.7 10.9 19.3 9.4

02-04 LST 14.2 15.8 15.0 11.9 9.7 6.7 6.0 9.8 14.7 11.1 11.7 21.3 12.3

05-07 LST 13.2 14.1 16.9 13.2 11.9 6.6 9.2 11.7 13.6 11.8 13.6 23.7 13.3

08-10 LST 13.0 16.0 15.7 12.4 10.0 5.3 6.8 6.2 10.5 11.5 14.3 25.2 12.2

11-13 LST 12.3 13.4 10.7 7.6 6.4 2.8 3.5 1.7 6.3 8.0 11.7 23.3 8.9

14-16 LST 12.9 11.6 8.2 5.5 6.1 2.0 2.2 1.7 2.5 5.8 10.8 18.7 7.3

All Hours 12.4 13.7 11.8 8.7 7.6 3.9 4.4 5.1 8.2 8.5 11.7 20.8 9.7

* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

% FREQUENCY OF CEILING & VISIBILITY < 3000.00 FT / 3.00 MI

HOURS JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN

17-19 LST 20.1 21.9 15.9 10.2 7.7 4.7 2.8 3.4 5.5 7.8 16.8 32.8 12.4

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20-22 LST 20.2 21.8 13.9 12.0 9.2 4.4 3.1 3.1 7.0 8.8 15.5 32.2 12.5

23-01 LST 21.4 22.8 17.6 13.9 11.0 5.4 5.6 5.5 12.2 11.7 16.2 32.6 14.6

02-04 LST 25.8 25.3 21.0 18.9 13.1 8.9 8.5 11.7 18.4 15.5 17.7 37.2 18.4

05-07 LST 25.5 25.9 24.1 18.7 16.0 10.5 11.0 13.5 18.0 16.0 20.5 38.6 19.8

08-10 LST 25.6 28.2 23.9 18.3 14.6 10.1 9.2 10.1 15.1 16.0 22.1 40.9 19.5

11-13 LST 24.6 27.7 22.4 14.7 12.2 8.3 6.4 5.8 12.1 13.7 20.9 40.2 17.3

14-16 LST 21.7 24.6 17.2 11.2 12.0 5.1 4.2 3.5 6.9 9.8 19.5 35.2 14.2

All Hours 23.1 24.8 19.5 14.7 12.0 7.2 6.3 7.1 11.9 12.4 18.6 36.2 16.1

* = No Data T = Trace # = Occurrences rounded to 0 Go to the top of the page

OPR: 14 WS/WXED

DSN: 673-9004

Comm: 828-271-4291 Last Updated: 2016/11/03 Version: 2.6.1.2

1/25/2018

FA440718R0003