2001 Covington/Cincinnati, Kentucky (CVG)

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2001 COVINGTON/CINCINNATI, KENTUCKY (CVG)

Greater Cincinnati Airport is located on a gently rolling plateau about 12 miles southwest of downtown Cincinnati and 2 miles south of the Ohio River at its nearest point. The river valley is rather narrow and steep–sided varying from 1 to 3 miles in width and the river bed is 500 feet below the level of the airport.

The climate is continental with a rather wide range of temperatures from winter to summer. A precipitation maximum occurs during winter and spring with a late summer and fall minimum. On the average, the maximum snowfall occurs during January, although the heaviest 24–hour amounts have been recorded during late November and February.

The heaviest precipitation, as well as the precipitation of the longest duration, is normally associated with low pressure disturbances moving in a general southwest to northeast direction through the Ohio valley and south of the Cincinnati area.

Summers are warm and rather humid. The temperature will reach 100 degrees or more in 1 year out of 3. However, the temperature will reach 90 degrees or higher on about 19 days each year. Winters are moderately cold with frequent periods of extensive cloudiness.

The freeze free period lasts on the average 187 days from mid–April to the latter part of October.

NORMALS, MEANS, AND EXTREMES

COVINGTON/CINCINNATI, OH (CVG)

LATITUDE:    LONGITUDE:    ELEVATION (FT):    TIME ZONE:    WBAN: 93814

39 02′ 35″ N  84 40′ 18″ W;  GRND:  882;  BARO:  885;  EASTERN (UTC + 5)

ELEMENTPROJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECYEAR
TEMPERATURE FNORMAL DAILY MAXIMUM3036.640.853.064.274.082.085.584.177.966.053.341.563.2
MEAN DAILY MAXIMUM5437.942.551.964.274.182.485.984.677.966.652.842.063.6
HIGHEST DAILY MAXIMUM40697584899310210310298888175103
YEAR OF OCCURRENCE196720001986197619621988198819621964196319871982JUL 1988
MEAN OF EXTREME MAXS.5460.364.574.782.187.192.594.793.590.682.372.162.679.7
NORMAL DAILY MINIMUM3019.522.733.142.251.860.064.862.956.644.235.325.343.2
MEAN DAILY MINIMUM5421.624.732.642.752.361.065.463.556.344.735.026.143.8
LOWEST DAILY MINIMUM40-25-11-11152739474331161-20-25
YEAR OF OCCURRENCE197719961980199719631972196319861993196219761989JAN 1977
MEAN OF EXTREME MINS.54-2.13.014.226.236.247.553.852.340.127.617.55.226.8
NORMAL DRY BULB3028.131.843.053.262.971.075.173.567.355.144.333.553.2
MEAN DRY BULB5429.833.642.353.463.271.675.674.167.355.644.034.053.7
MEAN WET BULB1828.332.138.047.557.565.368.867.360.450.240.631.849.0
MEAN DEW POINT1823.526.231.140.752.361.565.163.756.045.135.127.043.9
NORMAL NO. DAYS WITH:
MAXIMUM 90300.00.00.00.00.74.37.85.62.10.00.00.020.5
MAXIMUM 323012.07.61.30.00.00.00.00.00.00.00.66.628.1
MINIMUM 323026.522.315.64.60.30.00.00.00.03.512.722.4107.9
MINIMUM 0303.21.60.10.00.00.00.00.00.00.00.01.36.2
H/CNORMAL HEATING DEG. DAYS3011449306823541511100513276219775248
NORMAL COOLING DEG. DAYS300000861913132661202000996
RHNORMAL (PERCENT)3072706763676972727369717470
HOUR 01 LST3075747270778083838277757677
HOUR 07 LST3078787776808285888883808081
HOUR 13 LST3067645953545657575755626859
HOUR 19 LST3069656054585961636664687263
SPERCENT POSSIBLE SUNSHINE1333404856576162616154363150
W/OMEAN NO. DAYS WITH:
HEAVY FOG(VISBY 1/4 MI)392.52.01.60.91.21.51.72.72.82.11.62.523.1
THUNDERSTORMS550.70.82.54.35.97.38.07.13.01.41.20.542.7
CLOUDINESSMEAN:
SUNRISE-SUNSET (OKTAS)
MIDNIGHT-MIDNIGHT (OKTAS)
MEAN NO. DAYS WITH:
CLEAR15.0
PARTLY CLOUDY11.01.0
CLOUDY11.04.07.02.01.0
PRMEAN STATION PRESSURE(IN)2929.2029.1029.1029.1029.0929.1029.1029.1029.1029.2029.1929.1929.13
MEAN SEA-LEVEL PRES. (IN)1830.1230.1130.0629.9829.9929.9730.0130.0430.0630.1130.1130.1430.06
WINDSMEAN SPEED (MPH)4710.310.411.010.68.67.97.26.87.48.19.99.99.0
PREVAIL. DIR (TENS OF DEGS)3121212121222121222121212121
MAXIMUM 2-MINUTE:
SPEED (MPH)641394040354145413648404048
DIR. (TENS OF DEGS)17302729302732293129172729
YEAR OF OCCURRENCE199619962001199720012001200120001997200120012000OCT 2001
MAXIMUM 5-SECOND:
SPEED (MPH)651475559545661534360555261
DIR. (TENS OF DEGS)01212831252731293129172831
YEAR OF OCCURRENCE199620011997199819992001200120001997200120012000JUL 2001
PRECIPITATIONNORMAL (IN)302.592.694.243.754.283.844.243.352.882.863.463.1541.33
MAXIMUM MONTHLY (IN)549.436.7212.189.779.489.618.707.718.618.607.517.9012.18
YEAR OF OCCURRENCE195019551964199819681998200119821979198319851990MAR 1964
MINIMUM MONTHLY (IN)540.570.251.141.041.130.950.630.310.180.250.430.510.18
YEAR OF OCCURRENCE198119781960197119641965199719531963196319491976SEP 1963
MAXIMUM IN 24 HOURS (IN)544.332.845.213.313.713.454.283.524.544.473.362.965.21
YEAR OF OCCURRENCE195919901964199619561974198819951979198519481948MAR 1964
NORMAL NO. DAYS WITH:
PRECIPITATION 0.013011.311.013.312.111.110.410.19.28.38.410.812.5128.5
PRECIPITATION 1.00300.50.60.70.61.01.01.10.80.60.70.70.58.8
SNOWFALLNORMAL (IN)307.16.14.10.50.*0.00.00.00.00.31.83.723.6
MAXIMUM MONTHLY (IN)5431.519.913.03.70.2TTT0.06.212.112.531.5
YEAR OF OCCURRENCE19781993196819771989199319942000199319661989JAN 1978
MAXIMUM IN 24 HOURS (IN)5412.812.69.83.60.2TTT0.05.99.07.512.8
YEAR OF OCCURRENCE19961998196819771989199319942000199319661990JAN 1996
MAXIMUM SNOW DEPTH (IN)5314191150000048819
YEAR OF OCCURRENCE1978199819801987199319661990FEB 1998
NORMAL NO. DAYS WITH:
SNOWFALL 1.0302.22.01.10.20.00.00.00.00.00.10.41.17.1
PRECIPITATION (inches) 2001 COVINGTON/CINCINNATI, OH (CVG)
YEARJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANNUAL
19721.962.203.685.896.022.411.502.645.962.556.264.2345.30
19731.791.586.115.813.466.277.162.622.634.394.952.6649.43
19743.651.634.395.085.534.383.825.754.441.074.192.8346.76
19754.053.386.764.163.115.091.621.973.644.592.503.3644.23
19763.002.372.141.211.805.942.334.361.953.850.830.5130.29
19771.901.294.524.161.537.361.905.451.803.743.904.0041.55
19784.520.251.992.285.306.636.864.410.435.032.676.4646.83
19793.683.772.054.904.005.925.494.808.611.774.862.9152.76
19802.261.044.501.964.594.135.514.191.833.282.581.2637.13
19810.573.861.725.055.073.343.662.151.472.332.942.3934.55
19827.171.174.672.184.603.612.447.711.270.995.084.2545.14
19831.561.142.024.848.892.221.963.231.228.604.202.8442.72
19840.752.403.614.884.822.112.573.303.503.856.004.2142.00
19851.682.256.901.346.184.553.592.020.765.837.511.5244.13
19861.012.853.071.573.591.463.333.783.533.083.792.5833.64
19870.921.624.652.882.734.625.072.271.171.421.823.4332.60
19882.754.943.423.921.991.196.852.443.051.864.782.7839.97
19893.214.676.405.194.643.045.975.332.973.183.051.9649.61
19902.595.822.753.229.415.013.685.674.135.092.317.9057.58
19912.843.996.203.623.411.392.665.042.601.371.895.0840.09
19922.990.934.192.712.843.657.003.173.231.114.311.3637.49
19933.833.433.603.132.334.801.264.202.682.614.312.5338.71
19943.221.682.226.462.064.085.645.140.551.492.872.8838.29
19953.511.802.584.268.572.652.375.592.434.282.153.4343.62
19964.361.985.588.209.205.832.620.765.411.743.404.3353.41
19972.792.136.001.986.338.340.633.950.551.682.972.7740.12
19983.273.043.529.775.129.614.752.670.672.822.333.8251.39
19994.763.661.892.881.983.163.162.610.862.491.423.6032.47
20004.455.713.344.275.214.743.532.904.791.372.333.1845.82
20011.331.811.421.465.154.458.705.003.136.733.314.0846.57
POR=54 YRS3.242.883.883.734.204.094.083.282.712.723.233.1741.21
AVERAGE TEMPERATURE (F) 2001 COVINGTON/CINCINNATI, OH (CVG)
YEARJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANNUAL
197230.229.540.652.563.165.375.573.468.751.740.336.152.2
197331.733.050.651.158.472.374.873.769.659.045.433.654.4
197435.733.945.954.361.967.775.274.361.653.244.434.453.5
197534.037.139.850.667.672.374.676.962.457.549.137.454.9
197627.141.747.056.160.071.573.671.263.648.834.927.651.9
197712.029.846.556.368.268.777.973.969.852.345.428.752.5
197818.418.236.453.460.172.275.073.070.852.646.436.051.0
197921.321.446.650.960.269.473.472.366.154.344.236.251.4
198029.924.038.550.364.970.176.676.568.650.641.532.952.0
198124.134.240.158.159.872.375.973.665.253.943.729.052.5
198223.930.644.349.668.167.477.071.366.959.348.442.954.1
198331.635.344.749.459.071.679.278.367.255.744.724.653.4
198423.738.234.451.158.974.172.274.365.761.542.042.453.2
198522.729.447.557.965.469.975.172.567.559.349.926.253.6
198630.935.245.255.364.572.977.672.070.156.442.734.054.7
198730.737.345.053.069.373.676.175.268.349.348.036.855.2
198827.530.542.252.464.472.478.577.567.248.545.034.153.4
198938.630.845.452.960.171.376.773.566.455.743.921.653.1
199040.040.848.252.861.671.874.773.767.755.948.938.356.2
199131.037.345.456.970.475.477.974.868.658.641.437.356.3
199232.939.743.654.161.268.073.569.664.553.344.235.653.4
199334.529.340.252.063.370.979.176.263.953.043.532.853.2
199423.333.241.455.559.375.075.271.965.757.149.940.054.0
199531.331.045.753.362.772.976.679.565.755.337.529.353.4
199627.932.436.749.263.271.072.174.365.455.137.837.651.9
199728.237.644.248.157.269.175.171.665.655.441.335.752.4
199838.640.543.653.066.671.374.375.171.656.245.538.356.2
199932.437.938.355.063.673.079.072.766.855.348.534.854.8
200028.640.446.852.365.471.472.672.364.957.841.723.253.1
200129.737.039.758.064.269.774.274.964.655.250.039.354.7
POR=54 YRS29.833.642.353.463.271.775.674.167.355.644.034.053.7

REFERENCE NOTES:

PAGE 1:

THE TEMPERATURE GRAPH SHOWS NORMAL MAXIMUM AND NORMAL MINIMUM DAILY TEMPERATURES (SOLID CURVES) AND THE ACTUAL DAILY HIGH AND LOW TEMPERATURES (VERTICAL BARS).

PAGE 2 AND 3:

H/C INDICATES HEATING AND COOLING DEGREE DAYS.

RH INDICATES RELATIVE HUMIDITY

W/O INDICATES WEATHER AND OBSTRUCTIONS

S INDICATES SUNSHINE.

PR INDICATES PRESSURE.

CLOUDINESS ON PAGE 3 IS THE SUM OF THE CEILOMETER AND SATELLITE DATA NOT TO EXCEED EIGHT EIGHTHS (OKTAS).

GENERAL:

T INDICATES TRACE PRECIPITATION, AN AMOUNT GREATER THAN ZERO BUT LESS THAN THE LOWEST REPORTABLE VALUE.

+ INDICATES THE VALUE ALSO OCCURS ON EARLIER DATES.

BLANK ENTRIES DENOTE MISSING OR UNREPORTED DATA.

NORMALS ARE 30–YEAR AVERAGES (1961–1990).

ASOS INDICATES AUTOMATED SURFACE OBSERVING SYSTEM.

PM INDICATES THE LAST DAY OF THE PREVIOUS MONTH.

POR (PERIOD OF RECORD) BEGINS WITH THE JANUARY DATA MONTH AND IS THE NUMBER OF YEARS USED TO COMPUTE THE MEAN. INDIVIDUAL MONTHS WITHIN THE POR MAY BE MISSING.

WHEN THE POR FOR A NORMAL IS LESS THAN 30 YEARS, THE NORMAL IS PROVISIONAL AND IS BASED ON THE NUMBER OF YEARS INDICATED.

0.* OR * INDICATES THE VALUE OR MEAN–DAYS–WITH IS BETWEEN 0.00 AND 0.05.

CLOUDINESS FOR ASOS STATIONS DIFFERS FROM THE NON–ASOS OBSERVATION TAKEN BY A HUMAN OBSERVER. ASOS STATION CLOUDINESS IS BASED ON TIME–AVERAGED CEILOMETER DATA FOR CLOUDS AT OR BELOW 12,000 FEET AND ON SATELLITE DATA FOR CLOUDS ABOVE 12,000 FEET.

THE NUMBER OF DAYS WITH CLEAR, PARTLY CLOUDY, AND CLOUDY CONDITIONS FOR ASOS STATIONS IS THE SUM OF THE CEILOMETER AND SATELLITE DATA FOR THE SUNRISE TO SUNSET PERIOD.

GENERAL CONTINUED:

CLEAR INDICATES 0–2 OKTAS, PARTLY CLOUDY INDICATES 3–6 OKTAS, AND CLOUDY INDICATES 7 OR 8 OKTAS. WHEN AT LEAST ONE OF THE ELEMENTS (CEILOMETER OR SATELLITE) IS MISSING, THE DAILY CLOUDINESS IS NOT COMPUTED.

WIND DIRECTION IS RECORDED IN TENS OF DEGREES (2 DIGITS) CLOCKWISE FROM TRUE NORTH. "00" INDICATES CALM. "36" INDICATES TRUE NORTH.

RESULTANT WIND IS THE VECTOR AVERAGE OF THE SPEED AND DIRECTION.

AVERAGE TEMPERATURE IS THE SUM OF THE MEAN DAILY MAXIMUM AND MINIMUM TEMPERATURE DIVIDED BY 2.

SNOWFALL DATA COMPRISE ALL FORMS OF FROZEN PRECIPITATION, INCLUDING HAIL.

A HEATING (COOLING) DEGREE DAY IS THE DIFFERENCE BETWEEN THE AVERAGE DAILY TEMPERATURE AND 65 F.

DRY BULB IS THE TEMPERATURE OF THE AMBIENT AIR.

DEW POINT IS THE TEMPERATURE TO WHICH THE AIR MUST BE COOLED TO ACHIEVE 100 PERCENT RELATIVE HUMIDITY.

WET BULB IS THE TEMPERATURE THE AIR WOULD HAVE IF THE MOISTURE CONTENT WAS INCREASED TO 100 PERCENT RELATIVE HUMIDITY.

ON JULY 1, 1996, THE NATIONAL WEATHER SERVICE BEGAN USING THE "METAR" OBSERVATION CODE THAT WAS ALREADY EMPLOYED BY MOST OTHER NATIONS OF THE WORLD. THE MOST NOTICEABLE DIFFERENCE IN THIS ANNUAL PUBLICATION WILL BE THE CHANGE IN UNITS FROM TENTHS TO EIGHTS (OKTAS) FOR REPORTING THE AMOUNT OF SKY COVER.

HEATING DEGREE DAYS (base 65 F) 2001 COVINGTON/CINCINNATI, OH (CVG)
YEARJULAUGSEPOCTNOVDECJANFEBMARAPRMAYJUNTOTAL
1972-732324404733891102588844542520635049
1973-740127217583964901863591332161314671
1974-750014737161494295377477843550105074
1975-7650142244474848116867055832117654611
1976-7704724988931157164098057127667366194
1977-780232391586111814401303880346207106315
1978-79002138155289113481216563425179155591
1979-80114603466168871080118281443492245550
1980-810048446697988126185876823019165493
1981-8200873446341107126895663546028195538
1982-8301562445056821029825627466199214655
1983-8410892886001247127477393942521945859
1984-8500101128684692130699254325672224796
1985-8600782124501195105682861330510534845
1986-870212529266495510587666123655224812
1987-880139477505868115699169937484225216
1988-891038509595949811949608380211145065
1989-9004772976301335770671531390127214853
1990-91016629647782110467736022504404376
1991-920081232700853988727658339172274777
1992-930897358617907937997762384103405210
1993-9400101370640992129188572429821155517
1994-950656250447766103794858935310924563
1995-96006829881810991142939873478132105857
1996-9700933078118471136765640498252365385
1997-98175333970390080867967935551474622
1998-99001728457682610077548202979054676
1999-000063294489931111970956037573134626
2000-01001072486931290108477877726896285369
2001-1096316442786
COOLING DEGREE DAYS (base 65 F) 2001 COVINGTON/CINCINNATI, OH (CVG)
YEARJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANNUAL
197200076596334268142000912
197300413722831027817036001046
19740081770121323297501220900
197500081382363093767219301161
1976006592820727620239500822
1977007221711524072851814501234
19780004632313152552002001070
19790028381542712481022200845
19800000981873643631665001183
19810013134234343275999001026
1982000512999381203120731381031
19830044182254484171618001285
1984000133828923329513029001027
1985006479317431824116241501087
1986004229724739924318330001225
1987000121932663533251470401300
19880023702514253921116001260
1989007266721036927512517001096
19900017322723030927615521301070
19910001421831740831019542001504
1992000195912627315888200725
1993000056224443353755001156
199400019403143252288314001023
1995000945242365454971001213
1996000779198226296109500920
1997000016163320218774800842
19980023010424229931922216051230
19990006522534402471252001125
20000002892112402351073000914
200100064781742963159016001033
SNOWFALL (inches) 2001 COVINGTON/CINCINNATI, OH (CVG)
YEARJULAUGSEPOCTNOVDECJANFEBMARAPRMAYJUNTOTAL
1972-730.00.00.0T6.51.90.53.13.91.80.00.017.7
1973-740.00.00.00.00.42.01.73.23.40.50.00.011.2
1974-750.00.00.0T5.05.62.02.26.80.20.00.021.8
1975-760.00.00.00.03.71.78.00.10.60.00.00.014.1
1976-770.00.00.00.02.71.030.34.25.43.70.00.047.3
1977-780.00.00.00.04.06.331.54.67.50.00.00.053.9
1978-790.00.00.00.0T0.717.511.70.60.10.00.030.6
1979-800.00.00.00.01.01.08.311.97.9T0.00.030.1
1980-810.00.00.0T1.23.74.02.62.50.00.00.014.0
1981-820.00.00.0T0.310.97.13.90.51.50.00.024.2
1982-830.00.00.00.0TT0.85.50.3T0.00.06.6
1983-840.00.00.00.0T1.74.16.74.10.00.00.016.6
1984-850.00.00.00.01.47.312.29.50.41.70.00.032.5
1985-860.00.00.00.00.05.02.811.30.8T0.00.019.9
1986-870.00.00.00.0T0.81.62.48.82.30.00.015.9
1987-880.00.00.00.00.10.24.34.72.3T0.00.011.6
1988-890.00.00.00.00.72.9T3.01.20.30.20.08.3
1989-900.00.00.05.90.212.51.33.65.6T0.00.029.1
1990-910.00.00.00.00.08.64.32.6T0.00.00.015.5
1991-92T0.00.00.01.90.53.61.23.62.90.10.013.8
1992-930.00.00.0T1.63.80.319.93.9T0.0T29.5
1993-940.00.00.06.20.85.413.30.56.60.20.00.033.0
1994-95T0.00.00.00.00.216.47.63.30.00.00.027.5
1995-960.00.00.00.00.94.127.01.78.42.50.00.044.6
1996-970.00.00.00.02.11.34.34.5TT0.00.012.2
1997-980.00.00.00.00.44.21.218.57.1T0.00.031.4
1998-990.00.00.00.00.03.49.63.99.5T0.00.026.4
1999-000.00.00.00.0T2.37.60.60.10.20.00.010.8
2000-010.0T0.00.00.48.55.80.71.20.70.0T17.3
2001-0.00.00.0T0.00.7
POR=53 YRST0.00.00.32.03.87.15.44.10.50.0T23.2

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