BWS Daily Climatology Written Summary

BWS Daily Climatology Table One

BWS Daily Climatology Table Two

BWS Daily Climatology Graphs

July 1 2014 to July 30 2014


(Compiled: Friday, August 01, 2014 06:45)

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.

High pressure dominates with typical heat & humidity. Occasional showers & thunder, especially later on.


Last edited: Thursday, July 31, 2014

Tuesday the 1st was influenced by high pressure to the northeast with moderate east-southeasterly winds and no rain. The high reached 80F/27C with a low of 72F/22C and 10.2 hours of sunshine. The 2nd saw 0.10" of rain in convergent showers associated with a trough. Cooler temperatures ensued with only 2.1 hours of sunshine on moderate southeast winds. The high was 78F/26C with a low of 72F/22C. High pressure dominated on the 3rd, with just a few showers producing a trace. The high was 81F/27C with a low of 75F/24C and 8.5 hours of sunshine. On the 4th, cloudy conditions, a couple of morning showers and a trace of rain gradually gave way to 9.5 hours of sunshine. The high was 84F/29C with a low of 77F/25C. A weakening stationary front approached from the north on Saturday the 5th, with scattered showers developing overnight giving 0.01" of precipitation. The high for the day was 85F/30C with a low of 77F/25C with 9.1 hours of sun. The front arrived early morning Sunday the 6th, with showers and isolated thunderstorms. This brought 0.54" of rain with a high of 83F/28C, a low of 73F/23C and 8.5 of sunshine.
Monday the 7th was fair with mainly light winds as a ridge of high pressure established itself over the area. The high was 84F/29C with a low of 77F/25C and 10.8 hours of sunshine. The 8th continued to be controlled by high pressure with continued light to moderate winds from the south-southwest. The high was 85F/30C with a low of 79F/26C and 13.1 hours of sunshine. The 9th and 10th saw no change in the domination of a surface ridge, with no rain, respective highs of 85F/29C and 84F/29C after lows both days of 79F/26C. There were 11.5 hours of sunshine on the 9th and 10.6 hours on the 10th. The 11th saw continued high pressure and dry weather with well-scattered cloud and 11.4 hours of sunshine. The high was 84F/29C with a low of 79F/26C. The 12th saw high pressure begin to weaken with showers moving into the vicinity for much of the day. Only one shower affected the airfield, but did produce 0.24" of precipitation. The high was 85F/30C with a low of 76F/24C and 11.2 hours of sunshine. Benign weather continued on the 13th and 14th with only a trace of rain recorded on the 14th. The high temperature on both days was 85F/29C, with a lows dipping to 78F/26C on the 14th. There were 10.8 hours of sun measured on the 13th and 12.0 on the 14th.
Tuesday the 15th saw the arrival of a trough from the south bringing mostly cloudy skies, breezy winds, a few showers and distant thunder. The high was 83F/28C with a low of 77F/25C. 0.01" of precipitation was recorded with just 1.1 hours of sunshine. The 16th remained unsettled with strong winds, gale force gusts, a few thunderstorms and heavy showers as the trough continued to pass over the area. Mean winds at the airport reached 28 knots with gusts up to 35 knots. The high was 81F/27C with a low of 74F/23C. There were 0.30" of precipitation recorded along with 1.1 hours of sun. As the trough passed to the north on Thursday the 17th, lingering showers produced a further 0.21" of rainfall with 10.4 hours of sunshine and moderating winds. The high was 84F/29C with a low of 74F/23C. On the 18th, high pressure built back in across the area bringing settled conditions with 12 hours of sunshine and no rain. The high was 84F/29C with a low of 79F/26C. The weekend of the 19th and 20th brought further easing winds with dry and sunny conditions, thanks to the influence of the high. The highs reached 84F/29C with respective lows of 78F/26C and 77F/25C. 12.1 hours of sun were recorded on the 19th with 13 hours on the 20th.
High pressure continued to dominate the 21st with further dry weather and 12.2 hours of sunshine. The high was 84F/29C with a low of 77F/25C. The 22nd then saw quite an active day as a pre-frontal trough moved into the area. Moderate to heavy showers affected the airfield during the morning, bringing nearly 1 inch of rain. There was then a lull before further showers and isolated thunder moved in by late evening, helping the rainfall to exceed an inch, totalling 1.05" for the day. The high was 85F/30C with a low of 75F/24C and 8.2 hours of sunshine. The 23rd and 24th witnessed the return of settled conditions with no rain and identical highs and lows of 85F/29C and 79F/26C. 9.4 hours of sunshine occurred on the 23rd, with 11.2 on the 24th. A few pre-frontal showers passed through the area on the 25th and there was also a distant thunderstorm overnight. The high was 83F/29C with a low of 78F/25C. Rainfall amounted to 0.15" with just 1.1 hours of sunshine. Convergent showers and a few active thunderstorms occurred on Saturday the 26th as the near stationary front remained to the northwest. The high was 85F/30C with a low of 75F/24C. 0.97" of rain fell, with 3.3 hours of sunshine. Sunday the 27th saw the stalled boundary dissipate near the area, producing mostly cloudy skies and 4.3 hours of sunshine. Showers with isolated thunder produced 0.40" of rainfall and a gust of 33 knots. The high was 84F/29C with a low of 75F/24C. Monday the 28th saw high pressure build back into the area from the east bringing mainly fine conditions with 11.3 hours of sunshine with no rainfall. The high was 85F/29C with a low of 79F/26C. The 29th brought 12.6 hours of sunshine on moderate southerly flow, a high of 84F/29C and a low of 76F/24C under continued high pressure influence. In a convergent shower, 0.05" of rain fell. High pressure held strong to our northeast on the 30th with moderate southeasterly winds under 12.3 hours of sunshine. The high reached 84F/29C after a low of 78F/25C and 0.01" of rain fell in an early convergent shower.

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   4.04    
Mean26.8 / 80.128.8 / 83.824.8 / 76.7   28.4 / 83.130.21 / 1023.0
Departure
From Norm.
-0.6 / -1.3-0.8 / -1.5-0.3 / -0.5-0.90  0.7 / 1.3 
Max27.5 / 81.529.7 / 85.5 1.05  29.3 / 84.730.32 / 1026.8
Min24.3 / 75.7 22.1 / 71.8   27.0 / 80.630.13 / 1020.3
 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
7/1/201424.8 / 76.626.6 / 79.922.1 / 71.80.000.0026.6427.1 / 80.830.13 / 1020.3
7/2/201424.3 / 75.725.8 / 78.422.1 / 71.80.100.1026.7427.0 / 80.630.17 / 1021.7
7/3/201425.7 / 78.327.5 / 81.524.1 / 75.40.000.1026.7427.4 / 81.330.24 / 1024.0
7/4/201426.4 / 79.528.7 / 83.725.0 / 77.00.000.1026.7427.4 / 81.330.24 / 1024.0
7/5/201426.8 / 80.329.5 / 85.125.1 / 77.20.010.1126.7527.4 / 81.330.18 / 1022.0
7/6/201426.0 / 78.928.4 / 83.122.6 / 72.70.540.6527.2927.4 / 81.330.17 / 1021.7
7/7/201427.0 / 80.529.0 / 84.225.2 / 77.40.000.6527.2928.8 / 83.830.23 / 1023.7
7/8/201427.4 / 81.329.5 / 85.126.1 / 79.00.000.6527.2928.8 / 83.830.26 / 1024.7
7/9/201427.4 / 81.329.2 / 84.626.0 / 78.80.000.6527.2928.5 / 83.330.30 / 1026.1
7/10/201427.4 / 81.329.1 / 84.426.3 / 79.30.000.6527.2928.5 / 83.330.32 / 1026.8
7/11/201427.4 / 81.328.9 / 84.026.1 / 79.00.000.6527.2928.5 / 83.330.29 / 1025.7
7/12/201427.2 / 80.929.7 / 85.524.2 / 75.60.240.8927.5328.5 / 83.330.25 / 1024.4
7/13/201427.4 / 81.329.4 / 84.926.1 / 79.00.000.8927.5328.5 / 83.330.21 / 1023.0
7/14/201427.4 / 81.329.2 / 84.625.8 / 78.40.000.8927.5329.0 / 84.230.20 / 1022.7
7/15/201426.2 / 79.228.3 / 82.924.7 / 76.50.010.9027.5429.0 / 84.230.16 / 1021.3
7/16/201425.8 / 78.527.0 / 80.623.4 / 74.10.301.2027.8429.0 / 84.230.15 / 1021.0
7/17/201426.8 / 80.228.6 / 83.523.3 / 73.90.211.4128.0527.9 / 82.230.24 / 1024.0
7/18/201427.0 / 80.728.9 / 84.025.9 / 78.60.001.4128.0528.4 / 83.130.29 / 1025.7
7/19/201427.0 / 80.629.0 / 84.225.8 / 78.40.001.4128.0528.4 / 83.130.27 / 1025.1
7/20/201426.8 / 80.229.1 / 84.425.3 / 77.50.001.4128.0528.4 / 83.130.24 / 1024.0
7/21/201426.8 / 80.229.1 / 84.425.2 / 77.40.001.4128.0528.4 / 83.130.23 / 1023.7
7/22/201426.9 / 80.429.5 / 85.123.7 / 74.71.052.4629.1028.3 / 82.930.21 / 1023.0
7/23/201427.5 / 81.529.4 / 84.925.9 / 78.60.002.4629.1029.3 / 84.730.19 / 1022.4
7/24/201427.4 / 81.229.3 / 84.725.9 / 78.60.002.4629.1029.3 / 84.730.16 / 1021.3
7/25/201426.9 / 80.528.5 / 83.325.4 / 77.70.152.6129.2529.3 / 84.730.16 / 1021.3
7/26/201426.5 / 79.629.5 / 85.123.6 / 74.50.973.5830.2229.3 / 84.730.14 / 1020.7
7/27/201426.0 / 78.829.0 / 84.223.9 / 75.00.403.9830.6229.3 / 84.730.13 / 1020.3
7/28/201427.4 / 81.229.2 / 84.625.9 / 78.60.003.9830.6228.4 / 83.130.14 / 1020.7
7/29/201427.5 / 81.529.1 / 84.424.3 / 75.70.054.0330.6728.4 / 83.130.18 / 1022.0
7/30/201427.5 / 81.529.0 / 84.225.4 / 77.70.014.0430.6828.8 / 83.830.21 / 1023.0
 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
Total274.9         
132428140164062001
Mean9.276.184.166.4      
             
Departure
From Norm.
          
-1            
Max13.1 91.0 28  35  
             
Min1.1  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
7/1/201410.263.4705515 / 16019 / 160
PCMCOV
7/2/20142.178.2906818 / 15022 / 150
PNMCOVSHRABR
7/3/20148.579.5857214 / 20016 / 150
MCOVSH
7/4/20149.579856814 / 21017 / 220
PCMCSHFC
7/5/20149.181886914 / 20017 / 250
PNPCMCSH
7/6/20148.580.1917114 / 24017 / 250
PNPCMCOVSHTS
7/7/201410.877.8866812 / 20015 / 280
PCMC
7/8/201413.177.7856614 / 22017 / 210
PCMC
7/9/201411.576836713 / 19015 / 190
PCMC
7/10/201410.674.3816711 / 15014 / 150
PCMCOV
7/11/201411.472.5806510 / 15013 / 150
PCMCFC
7/12/201411.271.3826415 / 20022 / 150
PNMCSH
7/13/201410.868.5765715 / 16018 / 160
PCMC
7/14/20141271786317 / 13020 / 130
PCMCSH
7/15/20141.176866626 / 15034 / 150
PNPCMCOVSHRA
7/16/20141.181.8917328 / 19035 / 190
PNMCOVSHTS
7/17/201410.479.8887221 / 18027 / 200
PNPCMCOVSH
7/18/20141275.7826818 / 15022 / 150
PCMC
7/19/201412.176.2826712 / 20014 / 200
PCMC
7/20/20141372.4805510 / 19013 / 180
PC
7/21/201412.272.1796210 / 22014 / 210
PC
7/22/20148.275.8916515 / 30020 / 350
PNPCMCOVSHTS
7/23/20149.475836714 / 27017 / 270
PCMCOV
7/24/201411.272.4826018 / 22021 / 220
PCMCOV
7/25/20141.178.8876821 / 24028 / 230
PNMCOVSHRATS
7/26/20143.381.9896919 / 25025 / 250
PNMCOVSHTS
7/27/20144.383.2907122 / 20033 / 200
PNPCMCOVSHRATS
7/28/201411.377.5837120 / 21024 / 210
PCMC
7/29/201412.677.4866920 / 15026 / 150
PNPCMCSH
7/30/201412.376.3836918 / 15023 / 150
PNPCMCSH