2001 Cleveland, Ohio (CLE)

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2001 CLEVELAND, OHIO (CLE)

Cleveland is on the south shore of Lake Erie in northeast Ohio. The metropolitan area has a lake frontage of 3l miles. The surrounding terrain is generally level except for an abrupt ridge on the eastern edge of the city which rises some 500 feet above the shore terrain. The Cuyahoga River, which flows through a rather deep but narrow north–south valley, bisects the city.

Local climate is continental in character but with strong modifying influences by Lake Erie. West to northerly winds blowing off Lake Erie tend to lower daily high temperatures in summer and raise temperatures in winter. Temperatures at Hopkins Airport which is 5 miles south of the lakeshore average from 2–4 degrees higher than the lakeshore in summer, while overnight low temperatures average from 2–4 degrees lower than the lakefront during all seasons.

In this area, summers are moderately warm and humid with occasional days when temperatures exceed 90 degrees. Winters are relatively cold and cloudy with an average of 5 days with sub–zero temperatures. Weather changes occur every few days from the passing of cold fronts.

The daily range in temperature is usually greatest in late summer and least in winter. Annual extremes in temperature normally occur soon after late June and December. Maximum temperatures below freezing occur most often in December, January, and February. Temperatures of 100 degrees or higher are rare. On the average, freezing temperatures in fall are first recorded in October while the last freezing temperature in spring normally occurs in April.

As is characteristic of continental climates, precipitation varies widely from year to year. However, it is normally abundant and well distributed throughout the year with spring being the wettest season. Showers and thunderstorms account for most of the rainfall during the growing season. Thunderstorms are most frequent from April through August. Snowfall may fluctuate widely. Mean annual snowfall increases from west to east in Cuyahoga County ranging from about 45 inches in the west to more than 90 inches in the extreme east.

Damaging winds of 50 mph or greater are usually associated with thunderstorms. Tornadoes, one of the most destructive of all atmospheric storms, occasionally occur in Cuyahoga County.

NORMALS, MEANS, AND EXTREMES

COVINGTON/CINCINNATI, OH (CVG)

LATITUDE:    LONGITUDE:    ELEVATION (FT):    TIME ZONE:    WBAN: 14820

41 24′ 18″ N  81 51′ 10″ W  GRND:  802  BARO:  805  EASTERN (UTC + 5)

ELEMENTPROJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECYEAR
TEMPERATURE FNORMAL DAILY MAXIMUM3031.935.046.357.968.678.382.480.573.662.150.037.458.7
MEAN DAILY MAXIMUM5433.636.645.558.469.378.782.580.773.963.049.738.059.2
HIGHEST DAILY MAXIMUM607374838892104103102101908277104
YEAR OF OCCURRENCE195020001945198619591988194119481953194619501982JUN 1988
MEAN OF EXTREME MAXS.5456.259.172.180.385.691.593.291.388.580.170.159.977.3
NORMAL DAILY MINIMUM3017.619.328.237.347.356.861.460.354.243.535.024.540.5
MEAN DAILY MINIMUM5419.421.128.638.448.457.862.361.054.444.034.824.841.2
LOWEST DAILY MINIMUM60-20-15-5102531413832193-15-20
YEAR OF OCCURRENCE199419631984196419661972196819821942198819761989JAN 1994
MEAN OF EXTREME MINS.54-1.11.211.223.433.643.250.048.439.129.719.36.225.4
NORMAL DRY BULB3024.827.237.347.658.067.671.970.463.952.842.630.949.6
MEAN DRY BULB5426.528.937.048.458.968.272.470.964.253.542.431.450.2
MEAN WET BULB1825.627.533.843.753.862.466.065.158.648.639.129.746.2
MEAN DEW POINT1821.122.427.937.548.557.862.061.654.543.734.225.241.4
NORMAL NO. DAYS WITH:
MAXIMUM 90300.00.00.00.00.21.83.92.00.60.00.00.08.5
MAXIMUM 323015.612.74.90.20.00.00.00.00.00.01.110.344.8
MINIMUM 323027.924.321.09.30.9*0.00.00.02.812.524.8123.5
MINIMUM 0303.22.10.10.00.00.00.00.00.00.00.00.96.3
H/CNORMAL HEATING DEG. DAYS3012461058859522250400119938767210576201
NORMAL COOLING DEG. DAYS3000003311821817866800621
RHNORMAL (PERCENT)3073737066676970737471727471
HOUR 01 LST3075767473767981838277757677
HOUR 07 LST3077787876777981858480777779
HOUR 13 LST3069686357575757606059657062
HOUR 19 LST3072716861606161667069717467
SPERCENT POSSIBLE SUNSHINE5830374552586567636052312649
W/OMEAN NO. DAYS WITH:
HEAVY FOG(VISBY 1/4 MI)601.41.81.91.21.30.70.50.90.60.90.71.213.1
THUNDERSTORMS600.10.51.73.44.86.66.35.03.21.71.00.234.5
CLOUDINESSMEAN:
SUNRISE-SUNSET (OKTAS)06.45.68.8
MIDNIGHT-MIDNIGHT (OKTAS)06.4
MEAN NO. DAYS WITH:
CLEAR07.05.06.0
PARTLY CLOUDY12.01.04.03.09.0
CLOUDY19.06.011.011.09.0
PRMEAN STATION PRESSURE(IN)2929.2029.2129.2029.1029.1029.1029.2029.2029.2029.2129.2129.2029.18
MEAN SEA-LEVEL PRES. (IN)1830.1030.1230.0730.0030.0129.9830.0230.0630.0730.1130.1030.1230.06
WINDSMEAN SPEED (MPH)5012.311.712.111.510.09.38.78.39.09.911.812.010.6
PREVAIL. DIR (TENS OF DEGS)3424232036202022222220242322
MAXIMUM 2-MINUTE:
SPEED (MPH)641453840414143393546394646
DIR. (TENS OF DEGS)25240423292823242924242525
YEAR OF OCCURRENCE199619971996200119981998199920002000199619982000DEC 2000
MAXIMUM 5-SECOND:
SPEED (MPH)652554653515868474557476068
DIR. (TENS OF DEGS)24252129293121262926242621
YEAR OF OCCURRENCE199619971998199619981998199920002000199619981996JUL 1999
PRECIPITATIONNORMAL (IN)302.042.192.913.143.493.703.523.403.442.543.173.0936.63
MAXIMUM MONTHLY (IN)607.014.706.076.619.149.069.128.9611.059.508.808.5911.05
YEAR OF OCCURRENCE195019901954196119891972199219751996195419851990SEP 1996
MINIMUM MONTHLY (IN)600.360.480.781.181.000.650.680.530.740.610.800.710.36
YEAR OF OCCURRENCE196119781958194619631988200119691964195219761958JAN 1961
MAXIMUM IN 24 HOURS (IN)602.532.332.762.243.734.002.873.655.243.442.732.815.24
YEAR OF OCCURRENCE199519591948196119551972196919941996195419851992SEP 1996
NORMAL NO. DAYS WITH:
PRECIPITATION 0.013016.314.215.313.812.811.010.210.110.111.714.016.9156.4
PRECIPITATION 1.00300.10.20.20.30.60.81.20.80.80.20.40.46.0
SNOWFALLNORMAL (IN)3013.812.99.72.20.10.00.00.00.00.74.212.656.2
MAXIMUM MONTHLY (IN)6042.839.126.514.52.1TT0.0T8.023.430.342.8
YEAR OF OCCURRENCE19781993200119431974199619931993196219961962JAN 1978
MAXIMUM IN 24 HOURS (IN)6010.814.816.011.62.1TT0.0T6.715.012.216.0
YEAR OF OCCURRENCE19961993198719821974199619931993196219501974MAR 1987
MAXIMUM SNOW DEPTH (IN)5321211514000006201921
YEAR OF OCCURRENCE1978199319841987196219501962FEB 1993
NORMAL NO. DAYS WITH:
SNOWFALL 1.0304.54.03.10.70.*0.00.00.00.00.21.54.118.1
PRECIPITATION (inches) 2001 CLEVELAND, OH (CLE)
YEARJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANNUAL
19721.952.012.973.403.749.064.446.384.911.644.583.2648.34
19731.622.403.483.404.796.722.943.112.693.952.623.5341.25
19742.562.433.883.644.783.571.903.293.061.194.724.8639.88
19753.063.203.471.313.234.102.548.963.351.732.093.7740.81
19763.383.973.112.172.943.643.483.503.712.540.801.5734.81
19771.291.384.493.561.024.913.943.922.521.933.623.5136.09
19783.670.482.173.023.013.302.403.583.683.231.192.9632.69
19792.612.742.333.094.773.473.764.463.661.793.164.0039.84
19801.181.273.662.653.132.694.774.383.112.381.292.1032.61
19810.762.721.614.622.194.685.312.616.752.331.993.4439.01
19824.001.413.771.622.655.011.212.664.820.935.173.6836.93
19831.080.773.544.484.173.454.163.152.874.145.892.9240.62
19841.253.823.802.295.953.403.355.512.432.203.953.3841.33
19851.782.604.971.383.452.933.234.012.053.458.802.6341.28
19862.233.082.443.904.342.973.103.586.412.833.012.8240.71
19871.980.493.842.972.407.943.365.512.073.411.022.9637.95
19881.032.842.203.471.330.653.423.351.772.514.632.4929.69
19892.071.733.463.739.145.223.021.094.614.503.611.7243.90
19902.354.700.864.576.101.725.624.797.334.922.288.5953.83
19912.182.313.644.223.241.371.692.793.402.652.922.2632.67
19923.322.653.053.773.012.669.124.583.252.276.544.3148.53
19934.442.613.853.161.565.182.581.525.943.524.062.2140.63
19942.660.831.303.701.673.352.465.351.731.052.522.9429.56
19955.811.731.724.333.963.675.392.001.034.083.881.4539.05
19962.691.632.815.612.083.893.180.7911.054.655.033.0346.44
19971.772.933.262.204.213.341.515.264.251.632.582.4235.36
19983.921.893.256.071.922.972.723.021.202.361.591.9232.83
19993.642.361.653.891.541.434.661.801.933.063.312.7031.97
20002.632.051.573.725.465.722.574.723.293.562.552.7540.59
20011.591.632.432.333.843.960.683.313.905.562.622.5334.38
POR=131 YRS2.532.322.862.933.223.383.363.013.152.652.712.5134.63
AVERAGE TEMPERATURE (F) 2001 CLEVELAND, OH (CLE)
YEARJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANNUAL
197227.325.734.846.058.662.771.468.963.849.139.634.548.5
197330.427.946.550.256.770.472.673.266.357.744.634.352.6
197432.027.839.651.356.466.272.270.459.951.242.931.750.1
197531.930.434.641.862.369.871.372.358.653.847.032.050.5
197621.636.045.049.155.369.571.668.461.148.133.723.348.6
197711.025.042.751.461.863.373.169.665.652.645.429.249.2
197820.116.832.447.059.469.072.273.069.253.244.233.749.2
197922.019.142.946.656.966.971.171.565.052.442.333.749.2
198025.521.933.646.158.564.072.373.264.747.939.428.548.0
198120.131.536.050.655.768.271.370.062.450.042.630.649.1
198219.825.237.144.664.964.173.667.962.755.345.440.550.1
198330.733.940.847.155.769.075.273.765.153.443.923.251.0
198420.734.528.446.854.069.568.770.661.156.340.936.549.0
198520.825.240.353.660.462.771.168.964.954.046.024.349.4
198626.728.839.549.860.867.273.169.067.054.340.332.650.8
198727.430.539.049.163.070.275.270.863.547.546.134.851.4
198825.625.837.547.959.768.975.974.264.047.143.831.350.1
198935.026.138.145.357.668.373.471.064.054.041.019.249.4
199035.834.142.049.456.367.671.269.863.453.745.335.652.0
199127.332.840.752.666.971.174.772.764.555.740.234.852.8
199230.232.736.647.957.964.170.767.663.349.942.034.149.8
199332.325.633.647.659.267.975.073.262.251.341.830.550.0
199419.326.536.350.554.769.773.369.363.954.547.836.950.2
199530.127.040.046.659.371.575.577.863.256.438.526.151.0
199625.927.630.946.356.769.369.670.964.054.036.334.748.9
199725.734.438.845.252.968.270.667.562.653.139.033.449.3
199835.237.641.249.364.468.571.472.167.053.544.937.053.5
199927.134.734.350.461.070.176.269.165.052.545.933.851.7
200026.634.343.247.061.568.668.068.963.154.739.822.349.8
200127.732.234.051.460.068.071.972.661.454.448.837.151.6
POR=131 YRS27.128.236.347.258.467.872.270.664.553.541.831.349.9

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 CLEVELAND, OH (CLE)
YEARJULAUGSEPOCTNOVDECJANFEBMARAPRMAYJUNTOTAL
1972-733227954857529371067103356945025435704
1973-74397323460594610151035777419280495445
1974-752517642366010261021962934691154386092
1975-765418734553210151336836614493309255701
1976-770251505199321286167211136894231661157090
1977-78426603785921103138713431005534218436693
1978-79724336262096513281281680552290606190
1979-80201187403670967121812449675612231036474
1980-81329752176311251385935894430298306483
1981-82111114545866410591393110986060878756471
1982-835421363105867601056864742533294565384
1983-8470116362628129113668781126544347196684
1984-85161717427071687713641110757370187995957
1985-8627118338565125511801009785459172525942
1986-87340633327369991158958795473170235750
1987-883229053556292912131129848506208606105
1988-89858355762910409221084831585272336049
1989-90061083507161416898858718492270565888
1990-91731213505859061163897748379111115281
1991-92001233107389301074929872513243905822
1992-9382611846268295210091097967519192566088
1993-9403134420691106314141073880443330576508
1994-954108332250786510771061769546190135447
1995-96301032717871200120310771052556297196568
1996-9780983338509321213849805584368466086
1997-98113010340477397291676375846594735362
1998-9914523505978631171840942433155565464
1999-0033833845699611180884674533169545497
2000-01102113631575013171152914955427177586232
2001-110150332480857
COOLING DEGREE DAYS (base 65 F) 2001 CLEVELAND, OH (CLE)
YEARJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANNUAL
1972000156323915764000529
19730001371682442731191700841
197400014189123118030320569
19750000751872062416500720
1976003231416721413839200600
197700422747326217584090703
1978000053170237256177300896
1979000642122213218932100715
19800000278323526397000705
198100041613221417573000614
198200038454278140731766661
19830005121853272771271200945
198400031315913919760500576
1985000385234201131122420584
1986001948128259168131800752
1987000011418332220953030884
198800004718534829758900944
1989004046138268199831400752
1990001031814120815880810645
19910011417620030724511426001083
19920008286819111474000483
199300001714731626262200806
1994000151720426914958510718
19950000212163364045811001046
199600024815516019376100635
199700000147194113384100533
19980025082183207231118400850
199900003921835713888100841
200000416916911414586700595
20010002331156231240481100740
SNOWFALL (inches) 2001 CLEVELAND, OH (CLE)
YEARJULAUGSEPOCTNOVDECJANFEBMARAPRMAYJUNTOTAL
1972-730.00.00.05.57.815.29.820.48.30.90.60.068.5
1973-740.00.00.0T3.313.88.916.97.16.42.10.058.5
1974-750.00.00.01.65.324.19.79.915.21.20.00.067.0
1975-760.00.00.00.05.613.121.56.85.81.6T0.054.4
1976-770.00.0T1.68.916.321.19.64.21.70.00.063.4
1977-780.00.00.0T9.723.142.810.83.50.20.00.090.1
1978-790.00.00.00.01.92.515.116.02.40.40.00.038.3
1979-800.00.00.00.20.54.011.319.23.5TT0.038.7
1980-810.00.00.0T5.413.515.09.716.9T0.00.060.5
1981-820.00.00.04.02.927.128.17.617.613.20.00.0100.5
1982-830.00.00.0T2.26.36.58.311.33.40.00.038.0
1983-840.00.00.00.07.113.012.927.119.3T0.00.079.4
1984-850.00.00.00.04.08.925.518.21.25.90.00.063.7
1985-860.00.00.00.0T23.417.210.86.70.20.00.058.3
1986-870.00.00.00.03.11.116.45.026.24.00.00.055.8
1987-880.00.00.0T1.016.48.722.920.41.90.00.071.3
1988-890.00.00.0T1.717.96.613.89.94.9T0.054.8
1989-900.00.00.0T9.124.010.59.94.44.70.00.062.6
1990-910.00.00.0TT7.416.618.94.2T0.00.047.1
1991-920.00.00.00.03.59.423.86.218.44.40.00.065.7
1992-930.00.00.0T7.17.18.739.125.41.10.0T88.5
1993-94T0.0T0.23.019.027.412.37.03.60.00.072.5
1994-950.00.00.00.0T1.023.414.74.30.20.00.043.6
1995-960.00.00.00.09.929.621.910.119.410.20.0T101.1
1996-970.00.00.00.023.45.013.08.45.30.80.00.055.9
1997-980.00.00.0T8.610.75.00.29.5T0.00.034.0
1998-990.00.00.00.00.16.929.614.211.6T0.00.062.4
1999-000.00.00.0T1.610.324.713.98.01.00.00.059.5
2000-010.00.0T0.111.221.914.93.226.50.30.00.078.1
2001-0.00.00.01.0T3.5
POR=59 YRST0.0T0.64.912.013.411.710.62.40.5T56.1

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