BWS Daily Climatology Written Summary

BWS Daily Climatology Table One

BWS Daily Climatology Table Two

BWS Daily Climatology Graphs

September 1 2019 to September 14 2019


(Compiled: Sunday, September 15, 2019 17:19)

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
Also see the BWS Glossary (http://www.weather.bm/glossary/Glossary.asp) for other abbreviations.
NOTE: To print graphs enable background printing in your browser print options.

September begins where August left off... warm and humid!


Last edited: Sunday, September 15, 2019

Surface troughing within a weakened Bermuda-Azores High ridge produced 0.15" of rainfall on the 1st. Our high reached 86.7F/30.4C and the low fell to 77.7F/25.4C. 10.4 hours of sunshine was recorded. Weak ridging was seen on the 2nd with 10.6 hours of sunshine, though a surface trough to the southeast gave us 0.01" of rainfall with a gust to 32 knots. The 3rd brought 0.04" of rainfall in a couple of light showers as low pressure developed nearby. The high was 86.0F/30.0C, the low 77.7F/25.4C and the SST was recorded as 86.5F/30.3C. A mix of sun and cloud occurred on the 4th with a high of 86.7F/30.4C and a low of 78.8F/26.0C with 0.03" of rain from a shower and 8.8hrs of sunlight. Similar weather on the 5th with a max and min of 86.5F/30.3C and 80.6F/27C with a few showers around but nothing registering. The 6th saw nearly 10 hours of sunshine under a transient high pressure ridge while only a trace of precipitation fell. The high was 86.0F/30.0C and the low fell to 80.4F/26.9C. Between the 7th & 9th daily highs met near 87F/30.5C and lows hovered around 80F/27C. There was no rainfall and most of the time only a few clouds, except on the 9th when a shallow convergence band crept across the island giving a light shower for the central and western areas. Tuesday the 10th was another fine day with 10.5 hours of sunshine and no rain. The high was 87F/31C and the low was 77F/25C. Wednesday the 11th was pretty much a carbon copy of the 10th as we had 10.5 hours of sunshine, though the high was slightly cooler at 86.2F/30.1C and the low fell to 78.1F/25.6C. Thursday the 12th was another fine day with 10.8 hours of sunshine and no rainfall. The high was 87F/30C and the low was 78F/25C. Friday the 13th was another fine day with 11.1 hours of sunshine and no rainfall. The high was 85F/30C and the low was 77F/25C. On Friday the 13th a rogue shower produced 0.02" of rain, while the day was mainly fine with 7.3 hours of sunshine, though a front brought increased cloud cover in the afternoon. The high was 88F/31C and the low was 78F/26C.

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		Max
Sea Level Pressure
" Hg / hPa		Min
Sea Level Pressure
" Hg / hPa
Total   0.25      
Mean28.1 / 82.530.3 / 86.625.8 / 78.5   30.4 / 86.830.07 / 1018.0  
Departure
From Norm.		1.2 / 2.11.0 / 1.91.5 / 2.8-4.80  3.0 / 5.5   
Max28.7 / 83.731.1 / 88.0 0.15  31.0 / 87.830.18 / 1022.030.23 / 1023.7 
Min27.5 / 81.6 24.5 / 76.1   30.0 / 86.029.96 / 1014.6 29.90 / 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		Max
Sea Level Pressure
" Hg / hPa		Min
Sea Level Pressure
" Hg / hPa
9/1/201928.3 / 82.930.4 / 86.725.4 / 77.70.150.1540.2230.0 / 86.030.11 / 1019.630.13 / 1020.330.08 / 1018.6
9/2/201928.7 / 83.731.1 / 88.024.5 / 76.10.010.1640.2330.0 / 86.030.06 / 1018.030.10 / 1019.329.99 / 1015.6
9/3/201927.9 / 82.230.0 / 86.025.4 / 77.70.040.2040.2730.3 / 86.529.97 / 1014.930.01 / 1016.329.93 / 1013.5
9/4/201928.4 / 83.130.4 / 86.726.0 / 78.80.030.2340.3030.3 / 86.530.00 / 1015.930.03 / 1016.929.93 / 1013.5
9/5/201928.4 / 83.130.3 / 86.527.0 / 80.60.000.2340.3030.3 / 86.530.02 / 1016.630.05 / 1017.629.99 / 1015.6
9/6/201928.3 / 82.930.0 / 86.026.9 / 80.40.000.2340.3031.0 / 87.829.97 / 1014.930.02 / 1016.629.92 / 1013.2
9/7/201928.7 / 83.630.8 / 87.427.0 / 80.60.000.2340.3031.0 / 87.829.96 / 1014.630.02 / 1016.629.90 / 1012.5
9/8/201928.1 / 82.630.3 / 86.526.7 / 80.10.000.2340.3031.0 / 87.830.09 / 1019.030.14 / 1020.730.01 / 1016.3
9/9/201928.0 / 82.530.6 / 87.126.0 / 78.80.000.2340.3031.0 / 87.830.16 / 1021.330.19 / 1022.430.12 / 1020.0
9/10/201927.8 / 82.130.8 / 87.425.1 / 77.20.000.2340.3031.0 / 87.830.18 / 1022.030.23 / 1023.730.15 / 1021.0
9/11/201927.6 / 81.630.1 / 86.225.6 / 78.10.000.2340.3030.0 / 86.030.13 / 1020.330.18 / 1022.030.06 / 1017.9
9/12/201927.6 / 81.629.5 / 85.125.1 / 77.20.000.2340.3030.0 / 86.030.08 / 1018.630.16 / 1021.330.05 / 1017.6
9/13/201927.5 / 81.629.5 / 85.125.1 / 77.20.000.2340.3030.0 / 86.030.12 / 1020.030.16 / 1021.330.05 / 1017.6
9/14/201927.7 / 81.831.0 / 87.825.6 / 78.10.020.2540.3230.0 / 86.030.18 / 1022.030.21 / 1023.030.13 / 1020.3
 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
Total137.3         
514130070001000
Mean9.874.785.664.3      
             
Departure
From Norm.		          
-10            
Max11.1 93.0 24  32  
             
Min7.0  55.0      
             
 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
9/1/201910.475.6886514 / 18019 / 140
PNPCMCSH
WSHFT
9/2/201910.673.8926222 / 13032 / 120
PNPCMCSH
WSHFT
9/3/20198.582.1937324 / 17030 / 160
PNPCMCSH
9/4/20198.883.7917718 / 29022 / 290
PNPCMCSH
9/5/201910.280.8917314 / 30019 / 310
PCMCSH
9/6/20199.478.6876518 / 22021 / 220
PCMCSH
PARTLY/MOSTLY SUNNY
9/7/201910.974.3846719 / 26024 / 260
PCMC
VCSH
9/8/20191168.976587 / 33012 / 320
PC
DSNT LTG
9/9/201977380648 / 26012 / 350
PCMC
VCSH
9/10/201910.570.286559 / 18015 / 180
PCMC
LTG DSNT, VCSH
9/11/201910.569.3835812 / 13016 / 120
PCMC
WSHFT VCSH
9/12/201911.171.282619 / 02017 / 040
PCMC
MOSTLY SUNNY, VCSH
9/13/201911.170.682619 / 02017 / 040
PCMC
MOSTLY SUNNY, VCSH
9/14/20197.374.1836121 / 11027 / 100
PNPCMCSHFC
FUNNEL CLOUD