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MARY'S HARBOUR, NEWFOUNDLAND AND LABRADOR


Home > North America > Canada > Newfoundland and Labrador
Elevation: 11 meters     Latitude: 52 18N     Longitude: 55 50W

WEATHER
 
CURRENT CONDITIONS

Sunrise/Set
05:16 am
09:02 pm

Local Time
5:42 pm NDT
15 May, 2024
 
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MONTHLY - ALL WEATHER AVERAGES   [ Show Summary ]
[ °F ]   °C
TEMPERATURE 
Average Temperature
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C-0.2-14.4-13.8-8.7-2.23.28.112.413.193.4-2.7-10

Average High Temperature
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C4.5-9-8.4-3.41.77.613.117.618.213.77.20.9-5.3

Average Low Temperature
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C-4.9-19.8-19.1-13.9-6.1-1.33.17.184.3-0.4-6.3-14.6

Highest Recorded Temperature
Years on Record: 15  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C35.65.259.414.726.535.63132.627.61913.79.2

Lowest Recorded Temperature
Years on Record: 15  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C-33.8-33-33.8-33.2-24.5-11.4-3.3---0.2-4-11.4-21.2-31.2

Average Number of Days Above 95F/35C
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days0.1---------------0.1------------------

Average Number of Days Above 86F/30C
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days1---------------0.40.10.6------------

Average Number of Days Above 70F/21C
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days30.8------------0.64.811.810.92.7---------

Average Number of Days Above 50F/10C
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days116.6---------0.79.419.127.129.323.470.7---

Average Number of Days Above 32F/0C
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days242.92.83.19.120.630.13031313030.119.26

Average Number of Days Below 35F/2C
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days254.830.928.23129.828.413.610.97.723.229.231

Average Number of Days Below 32F/0C
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days218.730.92830.627.919.23.70.1---3.517.926.230.7

Average Number of Days Below 28F/-2C
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days181.430.827.727.62211.30.2------0.69.622.329.4

Average Number of Days Below 10F/-12C
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days109.527.223.920.76.90.4------------0.38.122.1

Average Number of Days Below -4F/-20C
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days48.617.114.88.10.3------------------0.28.2

Average Number of Days Below -22F/-30C
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days4.21.81.70.4------------------------0.3



TEMPERATURE - WIND CHILL 
Avg. # of Days w/Wind Chill Below -4F/-20C
Years on Record: 5  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days83.72517.3163.8---------------0.54.816.4

Av. # of Days w/Wind Chill Below -22F/-30C
Years on Record: 5  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days30.511.675.5---------------------0.46

Av. # of Days w/Wind Chill Below -40F/-40C
Years on Record: 5  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days4.32.20.80.5------------------------0.8

Lowest Reported Wind Chill
Years on Record: 27  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C-47.9-47.9-45.5-45.6-33.2-16.9-6.8-------6-23.5-33.2-45.7



TEMPERATURE - HUMIDEX 
Average No. Days w/Humidex Above 104F/40C
Years on Record: 5  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days---------------------------------------

Average No. Days w/Humidex Above 95F/35C
Years on Record: 5  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days0.3------------------0.3---------------

Average No. Days w/Humidex Above 86F/30C
Years on Record: 5  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days6.3------------0.30.53.32.3------------

Highest Reported Humidex
Years on Record: 27  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C38.95.17.91015.631.637.337.238.936.925.416.18.8



PRECIPITATION 
Average Precipitation
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm943.969.381675173.295.48689.268.592.983.886.7

Most Precipitation Reported in a Day
Years on Record: 15  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm75.829.238.831.43631.443.66275.84956.441.233.7

Avg. No. of Days w/Precip. Above 0.1in/2.5mm
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days18314.814.915.513.51415.71714.614.616.11517.3

Avg. No. of Days w/Precip. Above 0.2in/5mm
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days59.84.45.44.33.456.25.65.23.45.65.55.8

Avg. # of Days w/Precip. Above 0.4in/10mm
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days29.322.71.81.32.83.22.32.91.92.92.82.8

Avg. No. of Days w/Precip. Above 1in/25mm
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days4.70.10.30.30.10.30.60.60.60.60.50.50.3

Avg. No. of Days w/Rain Above 0.1in/2mm
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days112.51.81.94.85.911.915.51714.614.614.972.7



PRECIPITATION - RAIN 
Average Rainfall
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm578.64.87.815.320.163.691.68689.268.582.740.68.5

Most Rain Reported in a Day
Years on Record: 15  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm75.82124.826.63631.243.66275.84956.441.227.2

Avg. No. of Days w/Rain Above 0.2in/5mm
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days350.30.30.81.34.65.75.65.23.45.22.30.5

Avg. No. of Days w/Rain Above 0.4in/10mm
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days17.30.10.30.30.62.43.12.32.91.82.21.30.2

Avg. No. of Days w/Rain Above 1in/25mm
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days3.6------0.10.10.30.60.60.60.60.40.30.1



PRECIPITATION - SNOW 
Average Snowfall
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
cm338.861.27048.328.47.92.9---------838.473.8

Average Snow Cover
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
cm38.174.1113.313384.612.8------------0.45.433.1

Average Snow Cover at Month End
Years on Record: 14  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
cm34.584.5123105.539.1---------------1.112.848.6

Deepest Snow Cover Reported
Years on Record: 15  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
cm243173243228178862---------2161103

Most Snow Reported in a Day
Years on Record: 15  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
cm34.228.229.63221.819.410---0.20.218.234.231.8

Avg. No. of Days w/Snow Above 1in/2.5cm
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days84.914.414.112.99.63.11.1---0.10.12.610.616.3

Avg. No. of Days w/Snowfall Above 2in/5cm
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days23.34.15.33.31.70.40.2---------0.72.85

Avg. No. of Days w/Snow Above 3.9in/10cm
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days9.71.62.31.30.80.30.1---------0.20.92.2

Avg. No. of Days w/Snowfall Above 10in/25cm
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days0.80.20.30.1---------------------0.10.3

Av. # of Days w/Snow Depth Above 0.4in/10mm
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days177.63128.33129.711.20.2---------1.614.929.7

Avg. # of Days w/Snow Depth Above 2in/5cm
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days167.53128.33129.29.4------------19.428.3

Av. # of Days w/Snow Depth Above 3.9in/10cm
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days160.13128.33128.98.4------------0.65.826.1

Av. # of Days w/Snow Depth Above 7.8in/20cm
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days147.630.728.33128.47.2------------0.12.819.3



HUMIDITY 
Average Morning Relative Humidity
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
%82.872.573.177.685.686.285.587.388.688.187.683.377.9

Average Evening Relative Humidity
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
%74.274.174.278.680.573.970.569.371.869.372.877.978.1



DEGREE DAYS 
Heating Degree Days
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days6749.91014.6907.7837.9615.9469306.9183.8162.1279.9462.8630.9878.2

Growing Degree Days
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days170.5------------------74.496.1------------



BAROMETER 
Average Sea Level Pressure
Years on Record: 5  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mbar1009.31004.71007.51011.21015.31013.11009.81009.11009.61009.11009.41007.31006

Average Station Pressure
Years on Record: 5  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mbar1008.51003.81006.61010.41014.41012.310091008.31008.91008.31008.51006.41005.1

Average Vapor Pressure
Years on Record: 5  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mbar4.91.31.52.23.85.37.29.39.57.55.23.52



SKY CONDITIONS 
Average Length of Day
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Hours12.9910.612.514.616.517.51715.213.211.19.48.5

Avg. No. of Days Visibility Above 5.5m/9km
Years on Record: 4  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days7229.3580.8461.8571.3594621.3591.3652.7667.3648.8676.3576.4587.6

Avg. No. of Days Visibility Below 5.5m/9km
Years on Record: 4  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days1315.8134.3192.3153109.388.3117.876.760.757.363.3124.8138.4

Avg. No. of Days Visibility Below 0.6m/1km
Years on Record: 4  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days221292419.816.834.51114.716144.518.818



WIND 
Average Wind Speed
Years on Record: 11  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
km/h18.319.820.120.219.217.417.514.914.616.617.820.520.6

Highest Reported Hourly Wind Speed
Years on Record: 27  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
km/h93808183747489597469699393

Highest Reported Wind Gust
Years on Record: 15  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
km/h1411261151411261228987918591137111

Avg. # of Days w/Wind Above 32 mph/52 km/h
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days22.243.63.61.31.10.40.20.80.5123.7

Avg. # of Days w/Wind Above 39 mph/63 km/h
Years on Record: 9  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days7.81.61.61.30.10.60.3---0.2------0.91.3

Average Primary Wind Direction
Years on Record: 11  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
°225270315225360360360225225225225270270



SOLAR RADIATION 
Average Daily Solar Radiation - Global
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m2113.56.511.215.918.318.417.415.611.27.242.5

Average Daily Solar Radiation - Diffuse
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m25.82.23.75.87.59.29.99.58.15.942.51.6

Average Daily Solar Radiation - Reflected
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m212.571115.417.516.815.915.415.413.110.36.95.1

Average Daily Solar Radiation - Direct
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m211.36.19.41316.416.314.713.81411.89.46.34.3

Maximum Daily Solar Radiation - Global
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m2113.56.511.215.918.318.417.415.611.27.242.5

Maximum Daily Solar Radiation - Diffuse
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m262.54.36.37.69.2109.68.16.24.42.71.8

Maximum Daily Solar Radiation - Reflected
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m214.98.214.518.921.419.518.11818.515.612.28.55.8

Maximum Daily Solar Radiation - Direct
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m214.77.31316.921.121.419.41919.41511.57.75

Minimum Daily Solar Radiation - Global
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m2935.18.71316.315.515.511.69.15.13.32.1

Minimum Daily Solar Radiation - Diffuse
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m25.523.15.27.499.79.47.75.53.22.21.5

Minimum Daily Solar Radiation - Reflected
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m29.85.78.211.313.314.813.413.711.110.26.85.44

Minimum Daily Solar Radiation - Direct
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m27.74.96.78.410.712.69.910.67.485.64.63.3




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