BWS Daily Climatology Written Summary

BWS Daily Climatology Table One

BWS Daily Climatology Table Two

BWS Daily Climatology Graphs

September 1 2014 to September 21 2014


(Compiled: Monday, September 22, 2014 15:10)

Written Summary   Table One   Table Two   Graphs  
Notes:
1. Mean daily temperature and pressure are averaged from the standard 24 hourly observations and not as the average of the maximum and minimum values.
2. Precipitation day has = or >0.01". Trace amounts (< 0.01") are not included in data.
3. Departures from the normal are based on the 1971 to 2000 normals where available (with the exception of the Sea Surface Temperature, which is based on the 1985 to 2000 normal).
Notes:
1. Mean humidity is averaged from the standard 24 hourly observations.
2. Weather Notes indicate a specific condition was observed at least once that day.
3. Departures from the normal are based on the 1971 to 2000 normals where available (with the exception of the Sea Surface Temperature, which is based on the 1985 to 2000 normal).
Key:
PN = Precipitation, PC = Partly Cloudy, MC = Mostly Cloudy, OV = Overcast, DZ = Drizzle, SH = Showers, BS = Blowing Spray GR = Hail, FC = Funnel Cloud, HZ = Haze, RA = Rain, BR = Mist, TS = Thunder Storm/Shower
NOTE: To print graphs enable background printing in your browser print options.

A fine and sunny start to the month with little rain and light winds under high pressure influence.


Last edited: Sunday, September 21, 2014

Monday September 1st had a couple of light showers bringing 0.06" of precipitation as building high pressure brought light and variable winds. The high was 85F/30C with a low of 75F/24C and 9.9 hours of sunshine. Tuesday the 2nd continued to be dominated by high pressure with a high of 86F/30C, a low of 75F/24C, and 10.1 hours of sunshine. Wednesday the 3rd and Thursday the 4th remained under the influence of high pressure that produced 11.3 hours of sunshine for both days and no rainfall. Highs peaked at 87F/30C on the Wednesday, while overnight lows dipped to 76F/24C on the Thursday. The 5th saw a weak trough moving through the dominant ridge, with a trace of rain in a morning shower and 10.5 hours of sunshine. The high was 86F/30C after a low of 77F/25C. High pressure held drying subsidence in place on the 6th on light easterly winds with a high of 85F/29C, a low of 76F/24C and 11.1 hours of sunshine. The 7th and 8th saw the high pressure remain in control with scattered cloud and 11.2 hours of sunshine on both days. Highs reached 86F/30C on both days with a low of 75F/24C on the 7th. Similar conditions persisted on the 9th with a high of 87F/30C, a low of 76F/24C, no precipitation and 11.6 hours of sunshine. A weakening surface ridge still maintained fair conditions on Wednesday the 10th with 11.7 hours of sunshine, no precipitation, a high of 86F/30C and a low of 75F/24C. Thursday the 11th saw a few vicinity showers as a disorganized trough entered the eastern part of the area. The high was 86F/30C, the low was 77F/25C, and there were 11.4 hours of sunshine. A disorganized trough moved through the area on Thursday the 12th bringing a few light showers. The high was 85F/30C, the low was 74F/23C, with 0.23" of precipitation and 8.7 hours of sunshine. Saturday the 13th saw high pressure build in across the area producing mainly fair conditions with 9.8 hours of sunshine and a couple of showers with 0.03" of rainfall. The high was 85F/30C with a low of 77F/25C. Sunday the 14th saw high pressure holding across the area bringing 10.0 hours of sunshine and 0.01" of rainfall. The high was 87F/31C with a low of 77F/25C. The 15th saw high pressure continuing to hold over the area, with 10.4 hours of sunshine. The high was 86F/30C with a low of 76F/24C. The 16th saw a couple of late showers, and one thunderstorm, producing 0.14" of precipitation. The high was 86F/30C, with a low of 75F/24C and 8.5 hours of sunshine. Cloud cover and a couple showers lingered on Wednesday the 17th in advance of a developing low to the west. The high reached 86F/30C with a low of 78F/25C, 0.07" of precipitation and 4.9 hours of sunshine. Strong winds were present through most of the 18th as low pressure moved by the area. Showers and thunderstorms were present along an associated frontal boundary with 0.82" of precipitation and a gust of 41 knots during a heavy shower. The high temperature was 85F/29C with a low of 73F/23C and 2.5 hours of sunshine. A complex low brought a cold front through in the pre-dawn hours of Friday the 19th with several showers. The high was 84F/29C with a low of 72F/22C, 0.22" of precipitation and 3.9 hours of sunshine. Conditions settled on the 20th as subsidence over the area provided 11 hours of sunshine with a high of 86F/30, a low of 77F/25C and no precipitation.

Produced by the Bermuda Weather Service
Unless otherwise stated, all statistical data are based on observations taken at the Bermuda International Airport.
 Mean Temp.
(°C/°F)
Max Temp.
(°C/°F)
Min Temp.
(°C/°F)
Daily Precip.
Inches
Accumulated Precip.
Inches
Year To Date Precip.
Inches
Sea Surface Temp.
(C/F)
Mean
Sea Level Pressure
" Hg / hPa
Total   1.04    
Mean26.9 / 80.529.9 / 85.824.3 / 75.7   28.8 / 83.930.09 / 1019.0
Departure
From Norm.
0.0 / 0.10.6 / 1.10.0 / 0.0-4.01  1.4 / 2.6 
Max27.6 / 81.730.6 / 87.1 0.28  29.8 / 85.630.20 / 1022.7
Min25.5 / 77.9 22.0 / 71.6   28.1 / 82.629.90 / 1012.5
 Mean Temp.
(°C/°F)
Max Temp.
(°C/°F)
Min Temp.
(°C/°F)
Daily Precip.
Inches
Accumulated Precip.
Inches
Year To Date Precip.
Inches
Sea Surface Temp.
(C/F)
Mean
Sea Level Pressure
" Hg / hPa
9/1/201426.6 / 79.829.5 / 85.123.6 / 74.50.060.0644.8328.1 / 82.630.18 / 1022.0
9/2/201426.8 / 80.330.0 / 86.024.1 / 75.40.000.0644.8328.6 / 83.530.15 / 1021.0
9/3/201427.0 / 80.530.4 / 86.724.5 / 76.10.000.0644.8328.6 / 83.530.17 / 1021.7
9/4/201427.0 / 80.530.0 / 86.024.4 / 75.90.000.0644.8328.6 / 83.530.20 / 1022.7
9/5/201427.4 / 81.330.1 / 86.225.1 / 77.20.000.0644.8328.6 / 83.530.15 / 1021.0
9/6/201426.8 / 80.229.4 / 84.924.3 / 75.70.000.0644.8328.6 / 83.530.10 / 1019.3
9/7/201426.9 / 80.430.2 / 86.423.9 / 75.00.000.0644.8328.6 / 83.530.11 / 1019.6
9/8/201427.1 / 80.830.1 / 86.224.6 / 76.30.000.0644.8328.6 / 83.530.16 / 1021.3
9/9/201426.7 / 80.130.4 / 86.724.3 / 75.70.000.0644.8328.7 / 83.730.14 / 1020.7
9/10/201426.9 / 80.530.0 / 86.024.0 / 75.20.000.0644.8328.7 / 83.730.08 / 1018.6
9/11/201427.2 / 81.030.0 / 86.025.0 / 77.00.000.0644.8328.9 / 84.030.03 / 1016.9
9/12/201426.5 / 79.729.6 / 85.323.4 / 74.10.230.2945.0628.9 / 84.030.03 / 1016.9
9/13/201427.4 / 81.329.6 / 85.324.7 / 76.50.030.3245.0928.9 / 84.030.09 / 1019.0
9/14/201427.4 / 81.430.6 / 87.124.7 / 76.50.010.3345.1028.9 / 84.030.17 / 1021.7
9/15/201427.4 / 81.330.2 / 86.424.4 / 75.90.000.3345.1029.8 / 85.630.12 / 1020.0
9/16/201427.0 / 80.630.3 / 86.523.9 / 75.00.140.4745.2429.1 / 84.429.95 / 1014.2
9/17/201427.0 / 80.730.0 / 86.025.4 / 77.70.070.5445.3129.1 / 84.429.90 / 1012.5
9/18/201426.3 / 79.329.3 / 84.722.7 / 72.90.280.8245.5929.1 / 84.429.91 / 1012.9
9/19/201425.5 / 77.928.8 / 83.822.0 / 71.60.221.0445.8129.1 / 84.430.04 / 1017.3
9/20/201427.2 / 80.929.9 / 85.824.7 / 76.50.001.0445.8129.1 / 84.430.15 / 1021.0
9/21/201427.6 / 81.729.6 / 85.326.1 / 79.00.001.0445.8129.1 / 84.430.12 / 1020.0
 Hours Of
Sunshine
Mean
R.H.
%
Absolute
Max. R.H.
%
Absolute
Min. R.H.
%
Max Of
Mean Wind
knots / °
Peak
Wind
knots / °
Sky Conditions / Weather Notes
PN PC MC OV DZ SH RA GR TS FC HZ BS BR
Total196.7         
820174092020000
Mean9.480.190.171.0      
             
Departure
From Norm.
          
-7            
Max11.7 99.0 270  300  
             
Min2.5  63.0      
             
 Hours Of
Sunshine
Mean
R.H.
%
Absolute
Max. R.H.
%
Absolute
Min. R.H.
%
Max Of
Mean Wind
knots / °
Peak
Wind
knots / °
Sky Conditions / Weather Notes
PN PC MC OV DZ SH RA GR TS FC HZ BS BR
9/1/20149.983.8927210 / 16014 / 160
PNPCMCSH
9/2/201410.18293717 / 2208 / 230
PC
9/3/201411.379.78869270 / 8300 / 11
PCMC
9/4/201411.380.5907110 / 34013 / 330
PC
9/5/201410.582897311 / 34015 / 310
PCMCSH
9/6/201411.179.5937111 / 06015 / 080
PCMC
9/7/201411.273.682637 / 15011 / 130
PCMC
9/8/201411.274.482677 / 2009 / 200
PCMC
9/9/201411.673.781656 / 1509 / 100
PC
9/10/201411.772.884668 / 12012 / 080
PC
9/11/201411.475.883646 / 06014 / 030
PCMC
9/12/20148.784.698757 / 1409 / 130
PNPCMCSH
9/13/20149.882.2897718 / 15023 / 150
PNPCMCSH
9/14/20141080.6926814 / 23016 / 230
PNPCMCSH
9/15/201410.47891688 / 33012 / 330
PCMC
9/16/20148.579.7977219 / 20024 / 200
PNPCMCOVSHTS
9/17/20144.986937918 / 20023 / 200
PNPCMCSH
9/18/20142.584.3997433 / 20041 / 200
PNPCMCOVSHRATS
9/19/20143.984977516 / 25021 / 300
PNPCMCOVSHRA
9/20/20141179.5917114 / 17016 / 170
PCMCOV
9/21/20145.785.5898024 / 19028 / 190
MC