2001 Marquette County Airport, Michigan (MQT)

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2001 MARQUETTE COUNTY AIRPORT, MICHIGAN (MQT)

The Marquette County Airport lies about 7.5 miles southwest of the nearest shoreline of Lake Superior and about 8 miles west of the city of Marquette. Lake Superior is the largest body of fresh water in the world and the deepest and coldest of the Great Lakes. An irregular northwest–southeast ridge line lies just to the east of the airport. There are several water storage basins in the vicinity of the station. One basin, about 20 miles long, is 3 miles northwest and another, about 8 miles in diameter, is 3 miles west.

The climate is influenced considerably by the proximity of Lake Superior. As a consequence of the cool expanse of water in the summer, there is rarely a long period of sweltering hot weather. Periods of drought are extremely rare. In the winter, cold outbreaks are tempered considerably by the waters of Lake Superior if the lake is unfrozen. However, winds blowing across these relatively warmer waters pick up moisture and cause cloudy weather throughout the winter, as well as frequent periods of light snow. Lake–formed snow showers and snow squalls are intensified near the station by upslope winds, especially from the northwest through northeast. With a northeast through east wind, especially in autumn, the upslope condition will cause light snow at the airport, while along the lakeshore, only drizzle or no precipitation may occur.

The growing season averages 117 days. Precipitation is rather evenly distributed throughout the year, with an average precipitation of 4 inches or more in June and September and less than 2 inch averages only in January and February. One hundred inches or more of snow occur in nine of ten winter seasons.

NORMALS, MEANS, AND EXTREMES

MARQUETTE, MI (MQT)

LATITUDE:    LONGITUDE:    ELEVATION (FT):    TIME ZONE:    WBAN: 94850

46 32′ 0 ″ N  87 34′ 0 ″ W  GRND: 1415  BARO: 1415  EASTERN (UTC + 5)

ELEMENTPORJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECYEAR
TEMPERATURE FNORMAL DAILY MAXIMUM3020.523.933.547.561.970.976.673.363.852.336.924.648.8
MEAN DAILY MAXIMUM3920.924.634.147.262.271.376.273.664.052.336.925.449.1
HIGHEST DAILY MAXIMUM2346617192939699969287735999
YEAR OF OCCURRENCE198119812000198019861995198820011998199219991998JUL 1988
MEAN OF EXTREME MAXS.3937.743.655.072.084.387.889.788.182.073.656.541.367.6
NORMAL DAILY MINIMUM303.34.013.627.038.447.453.551.744.134.823.39.929.2
MEAN DAILY MINIMUM394.05.014.027.338.948.453.552.044.534.923.411.329.8
LOWEST DAILY MINIMUM23-27-34-23-5172836342414-5-28-34
YEAR OF OCCURRENCE199619791982197919831986200019921993198419891983FEB 1979
MEAN OF EXTREME MINS.39-18.1-18.4-10.68.624.633.539.937.929.121.64.6-11.011.8
NORMAL DRY BULB3011.914.023.637.350.259.265.162.554.043.630.117.339.1
MEAN DRY BULB3912.614.723.937.450.559.864.962.954.343.630.118.239.4
MEAN WET BULB
MEAN DEW POINT
NORMAL NO. DAYS WITH:
MAXIMUM 90300.00.00.0*0.20.51.60.60.10.00.00.03.0
MAXIMUM 323026.922.214.72.90.10.00.00.00.00.510.824.9103.0
MINIMUM 323030.927.929.322.49.80.90.00.12.914.826.230.7195.9
MINIMUM 03012.311.76.10.30.00.00.00.00.00.00.77.538.6
H/CNORMAL HEATING DEG. DAYS3016461428128383147119374122330663104714799567
NORMAL COOLING DEG. DAYS300000131978450000155
RHNORMAL (PERCENT)
HOUR 01 LST
HOUR 07 LST
HOUR 13 LST
HOUR 19 LST
SPERCENT POSSIBLE SUNSHINE2034404850606365615344343249
W/OMEAN NO. DAYS WITH:
HEAVY FOG(VISBY 1/4 MI)210.91.01.82.32.31.22.13.02.82.41.01.422.2
THUNDERSTORMS210.00.10.41.02.44.65.34.53.21.30.10.022.9
CLOUDINESSMEAN:
SUNRISE-SUNSET (OKTAS)
MIDNIGHT-MIDNIGHT (OKTAS)
MEAN NO. DAYS WITH:
CLEAR
PARTLY CLOUDY
CLOUDY
PRMEAN STATION PRESSURE(IN)
MEAN SEA-LEVEL PRES. (IN)30.01
WINDSMEAN SPEED (MPH)
PREVAIL. DIR (TENS OF DEGS)
FASTEST MILE:
SPEED (MPH)644314044343835373538313544
DIR.NWNWNWNWNNWNWNWWSENWSWNW
YEAR OF OCCURRENCE198019851982198219811984198219841983198419791982APR 1982
PEAK GUST :
SPEED (MPH)
DIR. (TENS OF DEGS)
YEAR OF OCCURRENCE
PRECIPITATIONNORMAL (IN)302.171.732.772.643.033.482.883.414.083.612.892.6135.30
MAXIMUM MONTHLY (IN)236.613.686.086.566.496.615.408.596.947.598.254.458.59
YEAR OF OCCURRENCE199719841979198519831981199119881980197919881996AUG 1988
MINIMUM MONTHLY (IN)230.920.480.560.900.060.610.570.811.211.651.000.370.06
YEAR OF OCCURRENCE199119941980199819861992198119911989199419901994MAY 1986
MAXIMUM IN 24 HOURS (IN)222.232.052.403.093.442.802.642.342.343.662.972.483.66
YEAR OF OCCURRENCE198819831986198519831989198519881993198519881985OCT 1985
NORMAL NO. DAYS WITH:
PRECIPITATION 0.013016.412.613.510.910.612.59.511.914.014.115.017.6158.6
PRECIPITATION 1.00300.20.10.60.40.80.70.60.80.80.90.50.36.7
SNOWFALLNORMAL (IN)3035.224.528.99.81.5T0.00.00.15.219.836.4161.4
MAXIMUM MONTHLY (IN)2391.763.659.143.422.6TTT1.718.648.989.591.7
YEAR OF OCCURRENCE199719951985199619901994200019891993197919912000JAN 1997
MAXIMUM IN 24 HOURS (IN)2223.320.628.020.017.2TTT1.712.724.425.828.0
YEAR OF OCCURRENCE198819831997198519901994200019891993198920011985MAR 1997
MAXIMUM SNOW DEPTH (IN)385456634112000110274763
YEAR OF OCCURRENCE196919711997199719901974198919751983MAR 1997
NORMAL NO. DAYS WITH:
SNOWFALL 1.0309.06.25.82.60.40.00.00.00.*1.65.88.339.7
PRECIPITATION (inches) 2001 MARQUETTE COUNTY AIRPORT, MI (MQT)
YEARJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANNUAL
19721.531.433.252.622.501.702.854.125.321.963.393.0333.70
19731.470.992.373.017.163.422.162.932.032.531.162.4331.66
19741.311.420.613.282.493.571.803.874.013.052.870.8129.09
19752.852.102.112.413.534.591.062.972.801.343.161.8730.79
19762.652.223.951.832.951.631.520.501.322.241.681.7924.28
19771.011.574.093.192.043.103.893.555.172.652.523.2436.02
19783.030.890.561.493.342.684.104.474.541.722.722.1831.72
19792.431.996.081.842.706.134.631.412.097.592.471.5640.92
19802.951.470.564.111.872.513.183.496.942.711.922.2133.92
19811.962.182.303.102.436.610.572.282.114.632.004.3334.50
19823.800.591.894.452.761.244.653.455.003.872.532.8337.06
19832.673.144.853.176.491.621.453.214.985.755.683.3546.36
19841.273.683.992.460.792.811.924.294.292.032.352.6032.48
19852.962.914.636.563.591.493.764.786.324.885.743.9751.59
19862.941.214.772.360.062.453.074.622.854.501.040.5230.39
19871.421.532.072.303.932.014.883.582.664.314.053.5636.30
19884.020.953.661.481.340.711.468.593.975.018.252.3641.80
19891.821.602.891.482.155.360.912.611.213.493.432.5829.53
19901.741.961.882.324.253.132.012.704.765.271.001.7132.73
19910.921.783.753.502.643.065.400.813.104.735.871.5137.07
19921.282.662.572.121.760.614.933.283.351.984.272.4631.27
19932.390.680.994.114.612.421.953.984.413.322.841.3133.01
19941.650.482.272.272.312.601.483.982.921.652.170.3724.15
19951.452.893.312.313.851.493.934.313.606.372.972.4838.96
19965.222.912.096.501.703.944.432.113.583.641.874.4542.44
19976.610.973.651.032.963.441.603.011.362.383.482.4032.89
19982.711.125.350.901.933.060.592.703.561.932.891.6028.34
19994.933.151.042.215.743.054.782.353.093.472.271.5437.62
20002.341.263.341.111.223.632.103.501.902.803.663.0229.88
20012.802.001.723.182.374.213.031.263.933.194.891.6634.24
POR=129 YRS2.141.722.222.502.893.332.992.793.482.912.922.2332.12
AVERAGE TEMPERATURE (F) 2001 MARQUETTE COUNTY AIRPORT, MI (MQT)
YEARJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANNUAL
197213.614.922.834.952.357.063.963.354.643.633.318.939.4
197322.120.535.239.845.460.367.069.158.653.435.123.044.1
197417.116.426.739.947.759.769.164.552.946.736.629.442.2
197520.423.226.535.454.761.170.367.154.250.139.423.143.8
197615.626.128.443.148.564.166.567.656.843.429.114.642.0
197710.119.934.343.858.459.267.361.856.648.435.022.043.1
197817.918.627.437.353.360.565.166.458.747.034.220.142.2
19795.66.924.434.446.258.164.760.855.639.528.823.537.4
198013.112.821.339.154.556.965.764.552.938.629.815.438.7
198113.918.427.339.048.159.665.763.852.040.134.518.740.1
19824.812.123.132.854.954.066.059.853.845.429.123.338.3
198318.021.926.033.844.160.570.167.957.543.231.98.740.3
19849.025.317.540.348.262.064.465.452.446.730.518.740.0
198511.311.826.740.952.156.862.661.454.744.026.29.738.2
198614.414.826.442.054.857.166.360.053.242.725.221.339.9
198718.022.930.144.653.763.867.862.756.939.032.623.543.0
198811.610.823.138.554.762.368.665.054.938.031.816.339.6
198919.18.419.434.750.857.566.763.255.745.324.89.237.9
199022.018.128.542.346.959.963.763.253.741.334.018.041.0
199110.020.126.742.255.762.964.965.252.441.027.019.840.7
199217.019.822.634.652.656.358.459.253.541.428.420.238.7
199316.913.925.634.449.857.866.165.449.940.327.020.839.0
19942.87.727.336.850.261.964.060.758.247.333.727.539.8
199517.415.028.232.150.466.365.668.153.944.322.816.140.0
199610.511.919.531.546.662.361.664.656.343.826.819.537.9
199712.916.921.235.844.864.663.659.656.044.027.324.739.3
199817.828.424.741.755.059.565.565.858.347.434.122.443.4
199911.721.526.839.354.062.368.862.256.741.837.220.741.9
200012.920.132.935.853.958.062.862.454.447.331.412.140.3
200120.812.623.741.853.361.465.266.255.443.239.925.942.5
POR=127 YRS16.717.625.938.649.559.365.764.357.046.633.122.341.4

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 MARQUETTE COUNTY AIRPORT, MI (MQT)
YEARJULAUGSEPOCTNOVDECJANFEBMARAPRMAYJUNTOTAL
1972-731031213056539501423132312399167525981598542
1973-74593724436088912961482135411807475351928375
1974-75277736056384310971376116511888803201768072
1975-7649453174557621290152511201128653506947944
1976-77367929366810691556169512539466302391938657
1977-785012624450489413291455129511568263811838443
1978-79645722055491813851840162612549145772149623
1979-8093153295785108012821604150813507723402719533
1980-815368361813105015321581130311607765191689384
1981-82737838476690714251864148012929603133269868
1982-8337190350598106912891446120112059296382079159
1983-84353826467298917401737114514697335171249463
1984-857172369560102814311658148611787244002499226
1985-86111146323645115617091564140011916843342509513
1986-8771169349684118513481450117110756063871068601
1987-885813024780096412781650156912957873471669291
1988-893710130583398815041416158414129024322459759
1989-9065117283610119917271324130811237025561769190
1990-9110411134772692114541703125011826783341158925
1991-9274112385739113313941483130813069053982769513
1992-93208202340732109213831485142412159104742339698
1993-943878446760113013661927160111648444701359959
1994-958415322053893211551471139511379784521068621
1995-9668213366371259150916881538140799756614110167
1996-971267329464911401402160713431350867620899560
1997-98111193276649112712431455101912436903262038535
1998-99655122153892013141646121311787643461538409
1999-00401112897118271364160912959908673492088660
2000-01117108317543100016321365146012686933571899049
2001-94633026727421205
COOLING DEGREE DAYS (base 65 F) 2001 MARQUETTE COUNTY AIRPORT, MI (MQT)
YEARJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANNUAL
19720000142676730000189
1973000002512717259600389
19740000540162703000280
197500009672181181000413
197600030759216653400393
197700004424126350000229
1978000025537610838200302
19790000015922919000155
19800002213683615000208
19810000113103502000169
1982000072753523000142
1983000007820013547100461
1984000034259890000193
19850007710444121000130
198600012117119210000179
1987000341771506513000349
1988000032891571068000392
198900001271237013100235
199000024029706314000200
1991000051607712613000327
199200002122830350089
19930000102279970000208
199400001849622924000182
199500008152931238500389
19960000370296740000209
1997000008074339300199
199800002547868326000267
1999000013771623147000330
2000000014757356100120
2001000519111010921000337
SNOWFALL (inches) 2001 MARQUETTE COUNTY AIRPORT, MI (MQT)
YEARJULAUGSEPOCTNOVDECJANFEBMARAPRMAYJUNTOTAL
1972-730.00.00.02.26.537.714.812.80.42.53.10.080.0
1973-740.00.00.0T7.427.915.518.25.213.22.30.089.7
1974-750.00.05.15.810.310.634.728.729.00.20.00.0124.4
1975-760.00.0T0.116.915.345.625.944.31.44.30.0153.8
1976-770.00.0T17.517.633.316.717.516.713.5T0.0132.8
1977-780.00.00.0T12.238.343.316.36.11.00.00.0117.2
1978-790.00.00.00.413.024.239.623.143.911.8T0.0156.0
1979-800.00.00.018.624.818.933.930.27.011.31.40.0146.1
1980-810.00.00.111.913.141.541.929.534.04.1T0.0176.1
1981-820.00.00.014.215.382.668.89.624.129.20.00.0243.8
1982-830.00.00.07.215.117.442.442.954.120.2T0.0199.3
1983-840.00.0T2.531.654.330.238.146.31.1T0.0204.1
1984-850.00.0TT13.630.656.251.459.118.10.00.0229.0
1985-860.00.00.0T28.156.449.817.449.16.80.10.0207.7
1986-870.0T0.02.315.710.521.927.719.311.30.10.0108.8
1987-880.00.0T8.321.436.162.828.049.05.80.00.0211.4
1988-890.00.00.010.942.041.743.133.744.37.80.20.0223.7
1989-900.0T0.516.641.758.426.435.816.317.122.6T235.4
1990-910.00.0T9.62.527.825.735.221.19.00.60.0131.5
1991-920.00.0T2.948.930.733.349.623.316.7T0.0205.4
1992-930.00.0T11.530.025.740.919.918.129.1T0.0175.2
1993-940.00.01.78.729.022.946.812.428.32.70.1T152.6
1994-950.00.00.0T14.67.423.863.645.910.20.00.0165.5
1995-960.00.0T3.331.745.166.637.822.943.40.60.0251.4
1996-970.00.00.01.515.679.891.718.750.44.89.10.0271.6
1997-980.00.00.08.337.238.841.715.335.45.70.0T182.4
1998-990.00.0T0.39.328.067.734.420.91.80.00.0162.4
1999-000.00.00.03.57.530.044.430.827.48.80.0T152.4
2000-01T0.00.012.138.089.544.541.540.22.20.00.0268.0
2001-0.00.00.013.739.337.4
POR=63 YRS0.0T0.24.218.228.129.823.722.49.01.6T137.2

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