Historical Weather Data

Observations began July 2015

JUMP TO: DailyMonthlyYearlyNormalsRecordsNotes

Last 24 hours:

Temperature graph Heat index graph Humidity graph Dew point graph Wind direction graph Wind speed graph Barometric Pressure graph Rainfall graph
Back to Top

Daily History

Temperature

HourHigh TempLow TempAvgLow Wind ChillAvg Wind Chill
12:00 AM39.1°36.0°37.4°36.0°37.4°
01:00 AM35.9°34.7°35.3°34.7°35.3°
02:00 AM35.9°35.0°35.5°35.0°35.5°
03:00 AM37.2°35.3°35.9°34.0°35.8°
04:00 AM37.2°36.9°37.0°33.9°36.6°
05:00 AM37.2°36.6°36.9°36.6°36.9°
06:00 AM37.1°36.6°36.8°33.5°36.7°
07:00 AM37.4°36.6°37.2°34.0°36.9°
08:00 AM37.1°35.6°36.1°35.6°36.1°
09:00 AM39.9°37.2°38.6°34.7°38.4°
10:00 AM43.6°39.9°41.9°39.0°41.3°
11:00 AM47.5°43.3°46.1°41.2°45.6°
12:00 PM51.8°47.6°50.1°47.6°50.1°
01:00 PM53.5°50.8°51.9°50.8°51.9°
02:00 PM54.4°53.1°53.7°53.1°53.7°
03:00 PM55.9°54.3°55.0°54.3°55.0°
04:00 PM55.7°53.0°54.3°53.0°54.3°
05:00 PM53.0°52.2°52.7°52.2°52.7°
SUMMARYHigh TempLow TempAvgLow Wind ChillAvg Wind Chill
Max55.9°54.3°55.0°54.3°55.0°
Min35.9°34.7°35.3°33.5°35.3°
Avg43.9°41.9°42.6°41.1°42.5°

Humidity & Dew Point

HourHigh HumidityLow HumidityAvg HumidityHigh Dew PointLow Dew PointAvg Dew Point
12:00 AM90%85%88%35.0°33.2°34.2°
01:00 AM92%90%91%33.4°32.2°33.0°
02:00 AM90%88%89%33.3°32.1°32.6°
03:00 AM90%85%89%33.6°32.2°33.0°
04:00 AM86%83%85%33.4°32.3°32.9°
05:00 AM85%83%84%32.8°32.1°32.4°
06:00 AM83%83%83%32.4°31.9°32.1°
07:00 AM83%80%80%32.2°31.4°31.6°
08:00 AM86%83%85%32.6°31.6°32.0°
09:00 AM83%78%79%33.6°31.8°32.7°
10:00 AM78%74%76%36.2°33.6°34.9°
11:00 AM75%68%71%38.0°35.9°37.3°
12:00 PM69%61%64%39.2°37.9°38.5°
01:00 PM63%57%60%39.5°37.9°38.6°
02:00 PM59%56%57%39.7°38.4°39.0°
03:00 PM57%52%54%39.6°38.2°38.8°
04:00 PM57%52%55%39.3°37.8°38.3°
05:00 PM60%57%58%38.7°37.8°38.3°
SUMMARYHigh HumidityLow HumidityAvg HumidityHigh Dew PointLow Dew PointAvg Dew Point
Max92%90%91%39.7°38.4°39.0°
Min57%52%54%32.2°31.4°31.6°
Avg77%73%75%35.7°34.4°34.9°

Wind

HourHigh 10 Min AvgLow 10 Min AvgAvg 10 Min AvgHigh MaxLow MaxAvg MaxAvg DirectionWind Run
12:00 AM2.0 mph0.0 mph0.5 mph3.0 mph0.0 mph1.3 mph306° NW0.5 mi
01:00 AM2.0 mph0.0 mph1.0 mph6.0 mph0.0 mph2.4 mph303° WNW1.0 mi
02:00 AM2.0 mph0.0 mph1.0 mph6.0 mph0.0 mph3.0 mph255° WSW1.0 mi
03:00 AM4.0 mph0.0 mph1.7 mph7.0 mph2.0 mph5.0 mph248° WSW1.7 mi
04:00 AM4.0 mph2.0 mph2.8 mph8.0 mph6.0 mph7.3 mph220° SW2.8 mi
05:00 AM3.0 mph2.0 mph2.9 mph7.0 mph6.0 mph6.2 mph222° SW2.9 mi
06:00 AM4.0 mph2.0 mph2.8 mph7.0 mph5.0 mph6.5 mph223° SW2.8 mi
07:00 AM4.0 mph1.0 mph2.7 mph7.0 mph0.0 mph6.3 mph218° SW2.7 mi
08:00 AM2.0 mph0.0 mph1.5 mph8.0 mph0.0 mph5.0 mph180° S1.5 mi
09:00 AM4.0 mph1.0 mph2.1 mph8.0 mph4.0 mph6.6 mph168° SSE2.1 mi
10:00 AM5.0 mph2.0 mph2.8 mph12.0 mph6.0 mph9.0 mph165° SSE2.8 mi
11:00 AM7.0 mph4.0 mph5.1 mph16.0 mph10.0 mph13.9 mph177° S5.1 mi
12:00 PM9.0 mph4.0 mph6.3 mph21.0 mph10.0 mph16.8 mph188° S6.3 mi
01:00 PM8.0 mph5.0 mph6.9 mph20.0 mph14.0 mph17.5 mph175° S6.9 mi
02:00 PM9.0 mph6.0 mph7.8 mph20.0 mph16.0 mph18.4 mph176° S7.8 mi
03:00 PM10.0 mph6.0 mph8.2 mph24.0 mph16.0 mph20.9 mph173° S8.2 mi
04:00 PM9.0 mph6.0 mph8.2 mph24.0 mph16.0 mph19.5 mph173° S8.2 mi
05:00 PM9.0 mph6.0 mph7.9 mph24.0 mph20.0 mph22.4 mph175° S3.8 mi
SUMMARYHigh 10 Min AvgLow 10 Min AvgAvg 10 Min AvgHigh MaxLow MaxAvg MaxAvg DirectionWind Run
Max10.0 mph6.0 mph8.2 mph24.0 mph20.0 mph22.4 mph8.2 mi
Min2.0 mph0.0 mph0.5 mph3.0 mph0.0 mph1.3 mph0.5 mi
Avg5.4 mph2.6 mph3.9 mph12.7 mph7.3 mph10.1 mph200° SSW3.8 mi
Total68.1 mi

Precipitation

DateLiquidSnow
2019-10-180.00"0.0"

Pressure

HourHigh PressureLow PressureAvg Pressure
12:00 AM30.03"30.02"30.03"
01:00 AM30.03"30.02"30.03"
02:00 AM30.04"30.03"30.03"
03:00 AM30.05"30.03"30.04"
04:00 AM30.05"30.03"30.04"
05:00 AM30.04"30.03"30.04"
06:00 AM30.05"30.04"30.04"
07:00 AM30.05"30.04"30.05"
08:00 AM30.05"30.03"30.04"
09:00 AM30.05"30.04"30.04"
10:00 AM30.04"30.03"30.04"
11:00 AM30.03"30.01"30.02"
12:00 PM30.01"29.98"29.99"
01:00 PM29.98"29.94"29.96"
02:00 PM29.94"29.91"29.92"
03:00 PM29.91"29.89"29.90"
04:00 PM29.89"29.88"29.89"
05:00 PM29.89"29.87"29.88"
SUMMARYHigh PressureLow PressureAvg Pressure
Max30.05"30.04"30.05"
Min29.89"29.87"29.88"
Avg30.01"29.99"30.00"
Back to Top

Monthly History

Temperature

DayHigh TempLow TempAvg (NWS)AvgHDDCDDLow Wind ChillAvg Wind Chill
Oct 0176.2°52.1°64.0°61.3°3.70.052.1°61.4°
Oct 0252.2°46.7°49.5°49.3°15.70.046.7°49.3°
Oct 0350.6°43.8°47.5°46.4°18.60.038.9°46.0°
Oct 0448.0°36.9°42.5°44.4°20.60.036.9°43.8°
Oct 0552.9°36.2°44.5°46.2°18.80.036.2°46.1°
Oct 0665.0°48.6°57.0°54.4°10.60.048.6°54.5°
Oct 0760.3°41.9°51.0°50.8°14.20.041.9°50.8°
Oct 0869.0°45.6°57.5°55.3°9.70.045.6°55.3°
Oct 0971.6°48.7°60.5°58.6°6.40.048.7°58.3°
Oct 1063.8°48.3°56.0°56.3°8.70.048.3°56.3°
Oct 1162.4°37.2°49.5°54.7°10.30.032.8°54.3°
Oct 1243.4°33.6°38.5°37.0°28.00.029.6°33.8°
Oct 1341.4°33.2°37.0°36.5°28.50.027.8°34.2°
Oct 1447.8°35.1°41.5°40.4°24.60.030.9°39.0°
Oct 1545.0°36.4°40.5°41.4°23.60.036.4°40.8°
Oct 1648.1°41.1°44.5°44.8°20.20.035.7°43.0°
Oct 1747.1°39.3°43.0°42.8°22.20.037.2°41.5°
Oct 1855.9°34.7°45.5°42.6°22.40.033.5°42.5°
SUMMARYHigh TempLow TempAvg (NWS)AvgHDDCDDLow Wind ChillAvg Wind Chill
Max76.2°52.1°64.0°61.3°28.50.052.1°61.4°
Min41.4°33.2°37.0°36.5°3.70.027.8°33.8°
Avg55.6°41.1°48.4°48.0°17.00.039.3°47.3°
Total306.60.0
ThresholdsHigh TempLow Temp 
>= 800 days 
<= 320 days0 days 
<= 00 days0 days 

Humidity & Dew Point

DayHigh HumidityLow HumidityAvg HumidityHigh Dew PointLow Dew PointAvg Dew Point
Oct 0192%69%80%68.5°42.2°55.0°
Oct 0285%64%71%44.1°36.9°40.2°
Oct 0398%83%91%48.9°40.7°44.0°
Oct 0494%64%76%42.0°33.4°37.0°
Oct 0592%71%82%50.1°32.7°41.1°
Oct 0690%35%67%50.4°36.1°43.0°
Oct 0779%35%62%42.0°29.8°37.6°
Oct 0883%35%60%48.1°36.9°40.7°
Oct 0983%35%61%49.7°41.4°44.3°
Oct 1096%59%76%51.3°41.9°48.5°
Oct 1194%65%84%60.1°26.9°49.8°
Oct 1285%45%69%30.5°23.0°27.4°
Oct 1392%65%82%36.1°29.2°31.4°
Oct 1483%48%72%36.1°28.3°31.7°
Oct 1596%66%83%43.6°30.8°36.7°
Oct 1692%65%77%41.8°34.0°37.9°
Oct 1788%64%74%37.4°33.7°35.2°
Oct 1892%58%80%42.2°32.4°36.5°
SUMMARYHigh HumidityLow HumidityAvg HumidityHigh Dew PointLow Dew PointAvg Dew Point
Max98%83%91%68.5°42.2°55.0°
Min79%35%60%30.5°23.0°27.4°
Avg90%57%75%45.7°33.9°39.9°

Wind

DayHigh 10 Min AvgLow 10 Min AvgAvg 10 Min AvgHigh MaxLow MaxAvg MaxAvg DirectionWind Run
Oct 0110.0 mph2.0 mph5.4 mph23.0 mph7.0 mph14.2 mph328° NNW128.7 mi
Oct 029.0 mph2.0 mph4.8 mph20.0 mph5.0 mph14.2 mph50° NE115.2 mi
Oct 039.0 mph0.0 mph2.7 mph19.0 mph0.0 mph8.3 mph78° ENE65.1 mi
Oct 049.0 mph0.0 mph2.9 mph18.0 mph0.0 mph8.4 mph27° NNE68.3 mi
Oct 0510.0 mph0.0 mph3.7 mph27.0 mph0.0 mph11.3 mph172° S89.3 mi
Oct 0614.0 mph0.0 mph5.2 mph28.0 mph0.0 mph14.3 mph231° SW124.2 mi
Oct 0712.0 mph0.0 mph3.9 mph25.0 mph0.0 mph10.9 mph280° W94.4 mi
Oct 0811.0 mph3.0 mph6.4 mph26.0 mph8.0 mph15.5 mph200° SSW154.3 mi
Oct 0911.0 mph0.0 mph5.4 mph27.0 mph0.0 mph14.5 mph175° S131.3 mi
Oct 106.0 mph0.0 mph2.0 mph16.0 mph0.0 mph7.3 mph164° SSE49.0 mi
Oct 119.0 mph1.0 mph4.5 mph22.0 mph3.0 mph13.7 mph182° S108.0 mi
Oct 1211.0 mph1.0 mph5.0 mph29.0 mph3.0 mph14.0 mph185° S120.7 mi
Oct 138.0 mph1.0 mph3.9 mph18.0 mph3.0 mph11.0 mph228° SW93.6 mi
Oct 149.0 mph0.0 mph3.3 mph21.0 mph0.0 mph10.1 mph281° W79.8 mi
Oct 156.0 mph0.0 mph1.6 mph16.0 mph0.0 mph5.1 mph31° NNE38.9 mi
Oct 1613.0 mph3.0 mph8.1 mph31.0 mph8.0 mph19.9 mph349° NNW195.0 mi
Oct 177.0 mph0.0 mph3.3 mph15.0 mph0.0 mph8.7 mph329° NNW79.8 mi
Oct 1810.0 mph0.0 mph3.9 mph24.0 mph0.0 mph10.1 mph200° SSW68.1 mi
SUMMARYHigh 10 Min AvgLow 10 Min AvgAvg 10 Min AvgHigh MaxLow MaxAvg MaxAvg DirectionWind Run
Max14.0 mph3.0 mph8.1 mph31.0 mph8.0 mph19.9 mph195.0 mi
Min6.0 mph0.0 mph1.6 mph15.0 mph0.0 mph5.1 mph38.9 mi
Avg9.7 mph0.7 mph4.2 mph22.5 mph2.1 mph11.8 mph222° SW100.2 mi
Total1803.8 mi

Precipitation

DayLiquidSnow
Oct 010.00"0.0"
Oct 020.05"0.0"
Oct 030.57"0.0"
Oct 040.19"0.0"
Oct 050.05"0.0"
Oct 060.05"0.0"
Oct 070.00"0.0"
Oct 080.00"0.0"
Oct 090.00"0.0"
Oct 100.00"0.0"
Oct 110.66"0.0"
Oct 120.00"0.0"
Oct 130.09"0.0"
Oct 140.00"0.0"
Oct 151.28"0.0"
Oct 160.38"0.0"
Oct 170.01"0.0"
Oct 180.00"0.0"
SUMMARYLiquidSnow
Max1.28"0.0"
Min0.00"0.0"
Avg0.19"0.0"
Total3.33"0.0"
ThresholdsLiquidSnow
>= 0.01"10 days
>= 0.10"5 days0 days
>= 1"1 day0 days
>= 4"0 days0 days
>= 8"0 days

Pressure

DayHigh PressureLow PressureAvg Pressure
Oct 0130.06"29.70"29.92"
Oct 0230.22"30.03"30.14"
Oct 0330.28"29.96"30.07"
Oct 0430.50"30.27"30.42"
Oct 0530.40"29.66"30.07"
Oct 0629.87"29.61"29.75"
Oct 0730.15"29.87"30.01"
Oct 0830.16"30.06"30.12"
Oct 0930.14"30.05"30.11"
Oct 1030.16"29.98"30.10"
Oct 1129.98"29.60"29.75"
Oct 1229.75"29.62"29.69"
Oct 1329.73"29.56"29.62"
Oct 1429.99"29.73"29.87"
Oct 1529.99"29.76"29.88"
Oct 1629.97"29.77"29.87"
Oct 1730.04"29.95"30.00"
Oct 1830.05"29.87"30.00"
SUMMARYHigh PressureLow PressureAvg Pressure
Max30.50"30.27"30.42"
Min29.73"29.56"29.62"
Avg30.08"29.84"29.97"
Back to Top

Yearly History

Temperature

MonthHigh TempLow TempAvg (NWS)AvgHDDCDDHigh Heat IndexAvg Heat IndexLow Wind ChillAvg Wind Chill
Jan39.5°-14.7°14.6°15.2°1544.00.039.5°15.2°-30.8°8.6°
Feb35.5°-7.8°15.8°16.9°1347.40.035.5°16.9°-18.1°13.1°
Mar54.0°-7.5°26.8°26.6°1189.70.054.0°26.6°-21.9°22.5°
Apr69.2°22.5°39.3°38.9°784.10.069.2°38.9°15.1°36.3°
May81.7°28.5°47.3°46.6°570.40.080.4°46.6°25.7°45.7°
Jun85.9°40.4°60.0°59.2°209.436.183.8°59.2°36.9°59.2°
Jul92.1°51.3°71.4°70.4°13.0181.095.4°70.5°51.3°70.4°
Aug86.8°49.3°66.2°65.5°45.162.089.4°65.6°49.3°65.5°
Sep84.0°46.2°61.3°60.7°154.425.886.8°60.7°46.2°60.7°
Oct76.2°33.2°48.4°48.0°306.90.076.2°48.0°27.8°47.3°
SUMMARYHigh TempLow TempAvg (NWS)AvgHDDCDDHigh Heat IndexAvg Heat IndexLow Wind ChillAvg Wind Chill
Max92.1°51.3°71.4°70.4°1544.0181.095.4°70.5°51.3°70.4°
Min35.5°-14.7°14.6°15.2°13.00.035.5°15.2°-30.8°8.6°
Avg70.5°24.1°45.0°44.7°616.430.571.0°44.7°18.1°42.7°
Total6164.4304.9
ThresholdsHigh TempLow Temp 
>= 902 days 
>= 8032 days0 days 
<= 3261 days101 days 
<= 00 days17 days 

Humidity & Dew Point

MonthHigh HumidityLow HumidityAvg HumidityHigh Dew PointLow Dew PointAvg Dew Point
Jan95%38%71%33.6°-23.6°7.5°
Feb97%32%76%30.3°-20.0°10.5°
Mar95%17%62%44.2°-16.6°14.7°
Apr95%16%66%45.2°6.0°27.4°
May100%28%68%54.8°18.0°35.5°
Jun96%17%64%64.4°26.9°46.3°
Jul100%31%63%71.8°40.4°56.8°
Aug100%30%67%69.4°39.1°53.5°
Sep100%33%75%69.3°35.2°52.4°
Oct98%35%75%68.5°23.0°39.9°
SUMMARYHigh HumidityLow HumidityAvg HumidityHigh Dew PointLow Dew PointAvg Dew Point
Max100%38%76%71.8°40.4°56.8°
Min95%16%62%30.3°-23.6°7.5°
Avg98%28%69%55.2°12.8°34.2°

Wind

MonthHigh 10 Min AvgAvg 10 Min AvgHigh MaxAvg MaxAvg DirectionWind Run
Jan17.0 mph5.4 mph33.0 mph12.5 mph277° W4023.4 mi
Feb24.0 mph3.8 mph51.0 mph8.7 mph290° WNW2527.1 mi
Mar18.0 mph5.2 mph39.0 mph12.3 mph292° WNW3847.6 mi
Apr17.0 mph4.7 mph33.0 mph11.1 mph330° NNW3399.3 mi
May15.0 mph3.8 mph30.0 mph9.3 mph21° NNE2809.3 mi
Jun14.0 mph3.0 mph31.0 mph8.2 mph329° NNW2177.0 mi
Jul14.0 mph3.6 mph36.0 mph9.5 mph275° W2700.1 mi
Aug14.0 mph3.2 mph39.0 mph8.8 mph281° W2393.6 mi
Sep14.0 mph3.9 mph36.0 mph10.8 mph226° SW2821.3 mi
Oct14.0 mph4.2 mph31.0 mph11.8 mph222° SW1799.8 mi
SUMMARYHigh 10 Min AvgAvg 10 Min AvgHigh MaxAvg MaxAvg DirectionWind Run
Max24.0 mph5.4 mph51.0 mph12.5 mph4023.4 mi
Min14.0 mph3.0 mph30.0 mph8.2 mph1799.8 mi
Avg16.1 mph4.1 mph35.9 mph10.2 mph287° WNW2896.9 mi
Total28498.4 mi

Precipitation

MonthLiquidSnow
Jan2.17"23.1"
Feb5.44"50.3"
Mar0.88"5.3"
Apr4.40"5.5"
May5.57"1.4"
Jun1.45"0.0"
Jul2.45"0.0"
Aug1.88"0.0"
Sep6.10"0.0"
Oct3.33"0.0"
SUMMARYLiquidSnow
Max6.10"50.3"
Min0.88"0.0"
Avg3.37"8.6"
Total33.67"85.6"
ThresholdsLiquidSnow
>= 0.01"123 days
>= 0.10"70 days44 days
>= 1"8 days22 days
>= 4"0 days5 days
>= 8"2 days

Pressure

MonthHigh PressureLow PressureAvg Pressure
Jan30.57"29.39"30.04"
Feb30.79"29.02"30.06"
Mar30.41"29.19"30.04"
Apr30.51"29.45"29.97"
May30.38"29.59"29.97"
Jun30.21"29.44"29.94"
Jul30.23"29.58"29.95"
Aug30.37"29.54"29.95"
Sep30.42"29.41"29.99"
Oct30.50"29.56"29.97"
SUMMARYHigh PressureLow PressureAvg Pressure
Max30.79"29.59"30.06"
Min30.21"29.02"29.94"
Avg30.44"29.42"29.99"
Back to Top

Marquette, MI Normals

Month TempHi TempLo TempAv Depart Rain Snow
January 25.0° F 12.5° F 18.8° F -0.4° F 1.83" 29.5"
February 27.8° F 13.6° F 20.7° F 0.0° F 1.31" 20.7"
March 35.9° F 22.1° F 29.0° F 0.2° F 2.00" 21.7"
April 47.3° F 32.9° F 40.1° F 1.0° F 2.45" 7.5"
May 59.4° F 42.6° F 51.0° F 3.3° F 2.53" 0.6"
June 68.3° F 51.5° F 59.9° F 3.2° F 2.68" 0.0"
July 74.5° F 58.6° F 66.6° F 1.9° F 2.82" 0.0"
August 74.2° F 59.0° F 66.6° F 0.5° F 2.63" 0.0"
September 66.8° F 52.0° F 59.4° F 0.7° F 3.16" 0.0"
October 53.9° F 40.6° F 47.3° F -0.4° F 3.13" 1.0"
November 40.3° F 29.3° F 34.8° F -0.4° F 2.62" 10.9"
December 29.1° F 18.0° F 23.5° F -0.5° F 1.97" 25.3"
SUMMARY TempHi TempLo TempAv Depart Rain Snow
Avg 50.2° F 36.0° F 43.1° F 0.75
Total 29.13" 117.2"
Records from Marquette Waste Water Treatment Plant 1981-2010
Back to Top

Station Records


marquetteweather.com

Highest recorded temperature: 93.5 °F on Jul 21, 2016
Lowest recorded temperature: -14.7 °F on Jan 31, 2019
Total recorded temperature range: 108.2 °F

Highest recorded pressure: 30.83 inHg on Jan 13, 2017
Lowest recorded pressure: 28.78 inHg on Dec 24, 2015
Total recorded pressure range: 2.05 inHg

Highest recorded wind speed: 51.0 MPH on Feb 24, 2019

Wettest day on record: Sep 5, 2018 with 3.11 in of rain.

Official Records

Forecast Accuracy

screen shot

View the accuracy of current &
past forecasted temperatures

* * * * *

Back to Top

Notes:

  • The above data, with the exception of normals, are produced by a private weather station located 1/4 mile south of downtown Marquette. The station went online July 10, 2015.
  • If you're seeking official weather data for the Marquette COOP station (1857 - present), please visit NOAA NOWData.
  • Graphs along with daily and monthly history tables are updated every 5 minutes. Yearly histories are updated at the top of every hour.
  • "NWS" averages are the sum of the daily high temperature & daily low temperature in whole degrees divided by 2. This is the National Weather Service method used for climatological summaries. All other fields labelled "Avg" contain integrated averages using one minute samples. "Avg" labelled summary columns contain weighted means (i.e. a partial hour/day/month counts less than a full one).
  • CDD = Cooling Degree Days & HDD = Heating Degree Days. Degree days are calculated using daily integrated averages of 1 minute samples compared to a base value of 65°. For example, a day with an avg temperature of 67.7° will have 2.7 CDDs & 0 HDDs. A 33.2° avg temperature will produce 31.8 HDDs & 0 CDDs.
  • "Wind Dir" is a scalar average of direction irrespective of speed. However, calm winds do not have a valid direction and are not included in the average.
  • "Wind Run" uses the 10 minute wind average.
  • "Low 10 Min Avg" & "Low Max" wind values are omitted from the yearly history table since every field equals 0.
  • In the daily & monthly history tables, "Wind Chill" appears only October through April. It is calculated when the temperature is 45 or below and average wind speed is at least 3 mph. Otherwise, it equals the temperature. Likewise, "Heat Index" appears only May through September. It is calculated only when the temperature is 80 or above. Otherwise, it equals the temperature.
  • As of July 2018 daily, monthly, and yearly history tables contain corrected humidities and dew points. A custom correction curve addresses a dry bias above 95% and a wet bias below 92% inherent to the sensor. A third-party device accurate to within 2% humidity established the deltas used in the algorithm. The daily table contains up-to-date corrections for today. The monthly and yearly tables have corrections through yesterday (updated just after midnight each morning).
  • "Liquid" precipitation in the winter is the amount of melted snow and/or ice.
  • Snow measurement began in October 2017.
  • The daily precipitation table doesn't contain hourly reports because often we correct the total with a measurement from our manual gauge. Unfortunately, when that happens, we have no way of reconstructing hourly amounts. For a raw, uncorrected breakdown of rain over the past 24 hours please see the precipitation graph at the top of the page.
  • Humidity and dewpoint are corrected in all tables according to a custom calibration curve. 24 hour graphs contain uncorrected values.
  • Since January 15, 2018, pressure is recorded in altimeter format. The home page, however, continues to display "Barometer" in MSLP format by default.
  • "Depart" in the Normals table refers to the average departure (or difference) between our weather station and the official Marquette average temperature recorded at the Waste Water Treatment Plant on Lakeshore Dr. These numbers are updated monthly based on data beginning August 2015 (first full month of data collection).
Back to Top