2001 Miami, Florida (MIA)

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2001 MIAMI, FLORIDA (MIA)

Miami is located on the lower east coast of Florida. To the east of the city lies Biscayne Bay, an arm of the ocean, about 15 miles long and 3 miles wide. East of the bay is the island of Miami Beach, a mile or less wide and about 10 miles long, and beyond Miami Beach is the Atlantic Ocean. The surrounding countryside is level and sparsely wooded.

The climate of Miami is essentially subtropical marine, featured by a long and warm summer, with abundant rainfall, followed by a mild, dry winter. The marine influence is evidenced by the low daily range of temperature and the rapid warming of cold air masses which pass to the east of the state. The Miami area is subject to winds from the east or southeast about half the time, and in several specific respects has a climate whose features differ from those farther inland.

One of these features is the annual precipitation for the area. During the early morning hours more rainfall occurs at Miami Beach than at the airport, while during the afternoon the reverse is true. The airport office is about 9 miles inland.

An even more striking difference appears in the annual number of days with temperatures reaching 90 degrees or higher, with inland stations having about four times more than the beach. Minimum temperature contrasts also are particularly marked under proper conditions, with the difference between inland locations and the Miami Beach station frequently reaching to 15 degrees or more, especially in winter.

Freezing temperatures occur occasionally in the suburbs and farming districts southwest, west, and northwest of the city, but rarely near the ocean.

Hurricanes occasionally affect the area. The months of greatest frequency are September and October. Destructive tornadoes are very rare. Funnel clouds are occasionally sighted and a few touch the ground briefly but significant damage is seldom reported. Waterspouts are often visible from the beaches during the summer months, however, significant damage is seldom reported. June, July, and August have the highest frequency of dangerous lightning events.

NORMALS, MEANS, AND EXTREMES

MIAMI, FL (MIA)

LATITUDE:    LONGITUDE:    ELEVATION (FT):    TIME ZONE:    WBAN: 12839

25 49′ 26″ N  80 17′59″W  GRND: 26  BARO: 29  EASTERN (UTC + 5)

ELEMENTPORJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECYEAR
TEMPERATURE FNORMAL DAILY MAXIMUM3075.276.579.182.485.387.689.089.087.884.580.476.782.8
MEAN DAILY MAXIMUM5475.577.079.782.785.788.189.389.788.284.880.476.983.2
HIGHEST DAILY MAXIMUM5988899296969898989795898798
YEAR OF OCCURRENCE198719941977197119951985199819901987198019971989JUL 1998
MEAN OF EXTREME MAXS.5483.585.387.489.991.292.993.493.792.289.786.083.689.1
NORMAL DAILY MINIMUM3059.260.464.267.872.175.176.276.775.972.166.761.569.0
MEAN DAILY MINIMUM5459.660.764.367.871.974.976.276.575.772.166.461.569.0
LOWEST DAILY MINIMUM5930323246536069686851393030
YEAR OF OCCURRENCE198519471980197119451984198519501983194319501989DEC 1989
MEAN OF EXTREME MINS.5442.145.548.856.563.969.872.072.371.863.052.644.958.6
NORMAL DRY BULB3067.268.571.775.278.781.482.682.881.978.373.669.175.9
MEAN DRY BULB5467.568.972.075.278.881.582.883.182.078.473.569.376.1
MEAN WET BULB1762.763.965.267.471.575.476.576.676.172.769.164.470.1
MEAN DEW POINT1758.659.660.862.767.772.573.574.073.569.665.660.666.6
NORMAL NO. DAYS WITH:
MAXIMUM 90300.00.00.21.53.08.013.814.09.21.90.00.051.6
MAXIMUM 32300.00.00.00.00.00.00.00.00.00.00.00.00.0
MINIMUM 32300.10.0*0.00.00.00.00.00.00.00.00.10.2
MINIMUM 0300.00.00.00.00.00.00.00.00.00.00.00.00.0
H/CNORMAL HEATING DEG. DAYS308851140000000641200
NORMAL COOLING DEG. DAYS301561492213064254925465525074122641684198
RHNORMAL (PERCENT)3073717067727675767875747273
HOUR 01 LST3081797776798382838582818081
HOUR 07 LST3084838280818484868886858384
HOUR 13 LST3059575653596563656662615960
HOUR 19 LST3069676664697472747672727070
SPERCENT POSSIBLE SUNSHINE2066687476726872717070676370
W/OMEAN NO. DAYS WITH:
HEAVY FOG (VISBY 1/4 MI)531.30.80.60.60.30.00.10.10.10.20.80.85.7
THUNDERSTORMS520.91.31.82.76.412.414.715.511.54.51.20.773.6
CLOUDINESSMEAN:
SUNRISE-SUNSET (OKTAS)484.34.24.34.24.65.45.15.15.34.64.34.24.6
MIDNIGHT-MIDNIGHT (OKTAS)323.83.83.83.54.14.94.44.44.74.03.83.64.1
MEAN NO. DAYS WITH:
CLEAR479.28.68.58.46.33.12.62.52.16.67.58.974.3
PARTLY CLOUDY4713.112.114.114.915.314.317.417.815.514.314.012.9175.7
CLOUDY478.77.68.36.79.312.611.010.712.410.18.59.1115.0
PRMEAN STATION PRESSURE (IN)2930.1030.0730.0530.0229.9930.0130.0630.0229.9829.9830.0430.0930.03
MEAN SEA-LEVEL PRES. (IN)1730.1030.0930.0630.0330.0030.0130.0730.0329.9829.9930.0530.1030.04
WINDSMEAN SPEED (MPH)499.510.010.610.69.48.28.17.98.39.39.79.29.2
PREVAIL. DIR (TENS OF DEGS)3334111310091111101006093410
MAXIMUM 2-MINUTE:
SPEED (MPH)530552928433236344359362959
DIR. (TENS OF DEGS)09190911100331101009182209
YEAR OF OCCURRENCE199819981998199719991998199719981998199919981997OCT 1999
MAXIMUM 5-SECOND:
SPEED (MPH)53710436376341474451704440104
DIR. (TENS OF DEGS)26191135330223110909312319
YEAR OF OCCURRENCE200019981997199919981998199719981998199919981997FEB 1998
PRECIPITATIONNORMAL (IN)302.012.082.392.856.219.335.707.587.635.642.661.8355.91
MAXIMUM MONTHLY (IN)596.668.0710.5717.2918.5422.3613.5116.8824.4021.6413.846.3924.40
YEAR OF OCCURRENCE196919831986197919681968194719431960199119921958SEP 1960
MINIMUM MONTHLY (IN)590.040.010.020.050.441.811.771.652.631.250.090.120.01
YEAR OF OCCURRENCE195119441956198119651945196319541951197719701988FEB 1944
MAXIMUM IN 24 HOURS (IN)592.685.737.0716.2111.598.204.556.927.5812.668.015.2616.21
YEAR OF OCCURRENCE197319661949197919771977195219641960200019922000APR 1979
NORMAL NO. DAYS WITH:
PRECIPITATION 0.01307.06.26.25.310.415.715.617.916.613.48.96.1129.3
PRECIPITATION 1.00300.50.50.70.71.93.21.52.02.31.80.60.516.2
SNOWFALLNORMAL (IN)300.00.00.00.00.00.00.00.00.00.00.00.00.0
MAXIMUM MONTHLY (IN)50.00.00.00.0T0.00.00.00.00.00.00.0T
YEAR OF OCCURRENCE1998MAY 1998
MAXIMUM IN 24 HOURS (IN)590.00.00.00.0T0.00.00.00.00.00.00.0T
YEAR OF OCCURRENCE1998MAY 1998
MAXIMUM SNOW DEPTH (IN)530000000000000
YEAR OF OCCURRENCE
NORMAL NO. DAYS WITH:
SNOWFALL 1.0300.00.00.00.00.00.00.00.00.00.00.00.00.0
PRECIPITATION (inches) 2001 MIAMI, FL (MIA)
YEARJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANNUAL
19721.602.713.012.6713.7110.907.136.495.082.862.774.1863.11
19733.412.211.762.241.088.936.1414.606.593.360.462.4653.24
19742.540.102.272.112.638.126.099.296.383.684.621.1749.00
19751.390.900.610.534.946.374.995.194.696.252.800.4439.10
19760.953.540.234.1710.456.813.839.457.754.422.691.6155.90
19771.442.100.911.9715.8212.425.238.287.041.255.942.5564.95
19782.073.442.923.505.665.292.693.933.427.683.172.0645.83
19791.280.570.3017.295.294.065.064.8113.363.631.622.8460.11
19801.890.883.1710.202.143.029.4011.325.606.053.470.2057.34
19810.614.661.320.054.945.492.7812.2514.791.622.140.1450.79
19820.441.224.229.278.8010.823.845.797.627.127.091.1867.41
19835.368.072.821.791.448.666.205.887.483.522.014.1957.42
19840.180.706.124.5110.917.247.385.4410.452.354.040.7060.02
19850.350.061.353.273.196.3311.2311.888.595.171.373.4756.26
19865.041.7210.570.718.249.067.817.674.383.964.752.2166.12
19870.872.623.820.384.995.485.173.2410.174.334.924.2850.27
19881.880.610.391.825.2810.3610.907.893.091.490.760.1244.59
19890.670.710.892.140.9910.833.5312.785.832.650.990.6242.63
19900.241.192.286.967.796.844.3111.063.524.821.671.0351.71
19911.592.042.325.162.507.517.298.8411.1721.641.180.1871.42
19921.801.492.672.430.5513.174.217.226.482.0213.841.9457.82
19935.042.145.983.084.133.647.285.1312.597.236.060.4962.79
19943.595.661.942.144.724.973.0316.6413.509.508.924.9579.56
19953.131.414.603.732.9420.336.3613.1310.379.912.530.8679.30
19962.330.801.403.378.3011.675.255.557.2110.100.691.0457.71
19971.711.572.065.169.8013.187.626.2812.472.602.895.2770.61
19981.046.625.970.663.456.675.4111.6614.415.706.661.9870.23
19992.980.270.251.464.8911.083.6013.877.0114.551.452.6864.09
20000.521.240.353.361.805.195.297.4210.5818.650.506.1561.05
20010.600.054.761.796.108.946.927.2717.9913.161.423.0372.03
POR=62 YRS2.021.962.393.475.888.816.437.718.827.292.931.8759.58
AVERAGE TEMPERATURE (F) 2001 MIAMI, FL (MIA)
YEARJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANNUAL
197273.068.472.175.077.679.980.981.780.477.973.370.875.9
197370.365.374.575.679.681.381.881.381.877.676.267.076.0
197474.368.975.676.280.082.182.684.084.178.172.969.077.3
197572.773.173.477.579.481.581.182.682.079.272.369.077.0
197664.768.875.875.178.579.183.181.980.476.371.568.275.3
197761.166.174.974.877.081.783.783.283.076.574.069.175.4
197864.063.268.974.079.281.982.582.682.078.875.773.075.5
197965.064.969.277.880.681.983.282.180.777.975.470.275.7
198067.564.073.275.479.081.482.682.882.180.174.367.375.8
198159.769.570.177.879.683.785.083.281.279.771.467.875.7
198267.874.474.777.977.282.084.384.082.777.975.072.677.5
198367.267.567.671.978.281.885.083.381.678.372.569.875.4
198467.068.670.473.277.179.881.982.680.178.271.571.175.1
198562.168.472.574.279.182.481.082.480.680.575.666.075.4
198665.269.468.671.777.581.383.183.583.380.379.373.676.4
198766.170.871.970.678.784.284.285.483.677.675.369.876.5
198867.967.770.776.177.982.083.183.684.079.176.970.576.6
198972.770.873.677.181.082.783.384.384.079.076.265.077.5
199073.674.073.775.280.383.083.583.783.180.474.472.978.2
199172.969.773.978.481.582.983.584.682.478.973.172.277.8
199267.470.571.974.077.881.584.984.483.279.576.871.677.0
199373.268.971.574.079.283.384.684.883.080.875.968.977.3
199469.473.374.078.281.083.683.782.881.980.377.272.078.1
199567.367.973.577.582.181.884.584.283.681.573.868.277.2
199668.166.769.776.081.282.584.583.183.278.474.370.276.5
199768.374.376.375.780.682.284.184.381.578.674.168.977.4
199870.169.269.576.080.785.484.884.983.280.876.373.477.9
199970.069.670.577.878.680.984.083.681.979.274.370.076.7
200068.669.575.075.180.282.183.883.483.078.173.568.876.8
200163.274.273.576.077.782.682.684.481.679.174.273.376.9
POR=62 YRS67.368.471.775.178.381.482.682.981.878.273.269.275.8

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 MIAMI, FL (MIA)
YEARJULAUGSEPOCTNOVDECJANFEBMARAPRMAYJUNTOTAL
1972-73000033041640000138
1973-7400001930370000131
1974-7500002321411000059
1975-760000334993270000202
1976-770000932165623000271
1977-7800006581239934000320
1978-79000001848213000180
1979-800000610509539000200
1980-8100007591682512000271
1981-8200001806513000150
1982-830000022502538200137
1983-840000469543717000181
1984-850000918135614100228
1985-860000278762254000232
1986-87000000831562700131
1987-880000329493826000145
1988-89000003614918000104
1989-9000010110740000122
1990-91000004231500042
1991-92000070387600058
1992-930000210572100045
1993-9400004312615100077
1994-95000001439511000105
1995-960000377657741000263
1996-970000026582000086
1997-980000249202925000125
1998-990000083519500067
1999-0000000263719000082
2000-01000045112106000182
2001-0000011
COOLING DEGREE DAYS (base 65 F) 2001 MIAMI, FL (MIA)
YEARJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANNUAL
19722621442273073984544985234714082612174170
1973212813013244594995315165113943431634334
19742941503353424715185515965784142451634657
19752612332763824565015085535174482571784570
1976921443363094244295695304703612091414014
197750973182993815085875745493642841914202
197897541632734495155475525134373292544183
197990811493914925165725374814073241784218
1980138752963214415015555635194762921354312
1981101541773894605686255704924601981734276
19821612703113943855186065965374063042644752
19831251011242134175146285765034192362214077
19841241441942523804525325544604162132143935
1985551642442854455295055464764883291144180
1986861501752073954955695825564834322724402
19871221862272024305806036395654013141824451
19881451232093394085165715845784453642164498
19892472192923675025405766035784423461144826
19902792622763144795475785875524862872544901
19912541672884085155475836145314372552314830
19921211732262774045036246095534543662224532
19932691232272774495576136225504973381594681
19941672522884035035665895575124793742394929
19951191382743775375096126025655192721784702
19961681341933355125326095665554212841954504
19971642703603264895236006075024272821794729
19981861521743374936166236215554983482774880
19991951521843904294825945835134472851904444
20001521543173124805185925795454112671784505
2001712662773354005325526055054442832764546
SNOWFALL (inches) 2001 MIAMI, FL (MIA)
YEARJULAUGSEPOCTNOVDECJANFEBMARAPRMAYJUNTOTAL
1972-730.00.00.00.00.00.00.00.00.00.00.00.00.0
1973-740.00.00.00.00.00.00.00.00.00.00.00.00.0
1974-750.00.00.00.00.00.00.00.00.00.00.00.00.0
1975-760.00.00.00.00.00.00.00.00.00.00.00.00.0
1976-770.00.00.00.00.00.00.00.00.00.00.00.00.0
1977-780.00.00.00.00.00.00.00.00.00.00.00.00.0
1978-790.00.00.00.00.00.00.00.00.00.00.00.00.0
1979-800.00.00.00.00.00.00.00.00.00.00.00.00.0
1980-810.00.00.00.00.00.00.00.00.00.00.00.00.0
1981-820.00.00.00.00.00.00.00.00.00.00.00.00.0
1982-830.00.00.00.00.00.00.00.00.00.00.00.00.0
1983-840.00.00.00.00.00.00.00.00.00.00.00.00.0
1984-850.00.00.00.00.00.00.00.00.00.00.00.00.0
1985-860.00.00.00.00.00.00.00.00.00.00.00.00.0
1986-870.00.00.00.00.00.00.00.00.00.00.00.00.0
1987-880.00.00.00.00.00.00.00.00.00.00.00.00.0
1988-890.00.00.00.00.00.00.00.00.00.00.00.00.0
1989-900.00.00.00.00.00.00.00.00.00.00.00.00.0
1990-910.00.00.00.00.00.00.00.00.00.00.00.00.0
1991-920.00.00.00.00.00.00.00.00.00.00.00.00.0
1992-930.00.00.00.00.00.00.00.00.00.00.00.00.0
1993-940.00.00.00.00.00.00.00.00.00.00.00.00.0
1994-950.00.00.00.00.00.00.00.00.00.00.00.00.0
1995-960.00.00.00.00.00.00.00.00.00.00.00.00.0
1996-970.00.00.00.00.00.00.00.00.00.00.00.00.0
1997-980.00.00.00.00.00.00.00.00.00.0T0.0T
1998-990.00.00.00.00.00.00.00.00.00.0T0.0T
1999-000.00.00.00.00.00.00.00.00.00.0T0.0T
2000-010.00.00.00.00.00.00.00.00.0
2001-
POR=57 YRS0.00.00.00.00.00.00.00.00.00.00.00.00.0

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