Weather at Tonbridge, Kent, Latitude 51° 11' N, Longitude 0° 16' E, Altitude 44m.  Sunrise: 05:13  Sunset: 20:56
 CONDITIONS (AS AT 21:40 UTC+1, 25/7/2017 ):  Mainly clear
 TEMPERATURE/HUMIDITY  CURRENT  TREND  LOW 25/7/2017  HIGH 25/7/2017
 Temperature  16.9°C  -2.6°C/last hr  13.5°C at 01:41  22.8°C at 17:27
 Dewpoint  12.7°C  -0.3 ºC/last hr  11.9 °C at 04:01  14.3 °C at 12:25
 Relative Humidity (RH)  76%  +10% last hr  55% at 14:49  91% at 01:41
 Humidex (Apparent Temp.)  19.6°C  N/A  N/A  26.1 ºC
 Feels Like (Wind-chill)  16.9°C  N/A  13.5 °C at 01:41  N/A
 Wet Bulb Temp  14.6°C  ( Wet Bulb Depression = 2.4 ºC : Dewpoint depression = 4.3 °C )
 WIND SPEED / DIRECTION  CURRENT  RECENT    HIGH 25/7/2017
 Wind Speed average  0.7 mph = 0.3 m/s  = Calm  5.1 mph = 2.3 m/s at 13:42
 Gust Wind Speed Snapshot  2.3 mph = 1.0 m/s  High Last Hour: 4.0 mph = 1.8 m/s  8.1 mph = 3.6 m/s at 08:11
 Dominant Wind Direction  ESE  Last 10 Mins: ESE  Dominant direction since 00h: Northerly
 BAROMETER  CURRENT  TREND (last 3 hours)  LOW 25/7/2017  HIGH 25/7/2017
 Barometer (Mean Sea Level)  1013.5 hpa  Falling slowly  (-0.6 hPa )  1013.4 hPa at 20:34  1016.9 hPa at 00:21
 History  Pressure change in hPa last 1 / 6 / 12 / 24 hours = +0.0  / -1.1  / -3.2  / -3.3
 Vapour Pressure  14.66 hPa
 RAIN  CURRENT  RECENT   HIGH 25/7/2017
 Today's Rainfall (total since midnight)   0.0 mm  0.0 mm rain in last hour
 Rain Rate  0.00 mm/hr  Has been raining for 0 minutes  0.0 mm/hr at 00:00
 SUNSHINE DATA  CURRENT    HIGH 25/7/2017
  N.B. The solar radiation and UV sensors are currently exposed to direct sunlight for around 8 hours per day.
 Apparent Temperature in the sun  17.7 °C
 Solar Radiation  0 w/m² :  (0 % of possible for the time)  1171 w/m² at 12:01 
 Sunshine Hours hh:mm  60 mins in last/hr  : Total today: 04:30  (auto + manual input)
 Maximum Possible Sunshine hh:mm  15:43  
 Ultraviolet Radiation Index  0.0 / Burn time (skin type burns easily) --- mins   7.8 at 12:40
 MORE RAIN DATA
 Last Rainfall recorded  0 day(s) ago, on 24/7/2017
 Rain in 24 hours to 21:40  1.6 mm
 Rain Total Previous 7 Days  52.2 mm
 Days with Rainfall This Month  7
 Rain Total This Month  78.0 mm
 Rain Total This Year  351.9 mm
 LAST 7 DAYS IN BRIEF
 Low Temperature  10.5 ºC on Sun
 High Temperature  22.8 ºC on Tue
 Low Humidity  44.0 % on Thu
 Max gust wind speed  18.4 mph on Sat
 Low Barometer  1004.9 on Wed
 High Barometer  1017.0 on Mon
 EXTREME READINGS TO 21:40, 25/7/2017 FOR:
July
2017
 High Temperature
29.7
  ºC on day 6
33.1
 ºC on 21 / 6
 Low Temperature
9.0
  ºC on day 13
-6.2
 ºC on 22 / 1
 High Dew Point
20.0
 ºC on day 6
20.4
  ºC on 21 / 6
 Low Dew Point
6.4
 ºC on day 20
-7.0
  ºC on 22 / 1
 Low Relative Humidity
36
  % on day 8
30
  % on 25 / 4
 Low Wind Chill
9.0
  ºC on day 13
-6.2
  ºC on 22 / 1
 High Heat Index
36.5
  ºC on day 6
38.6
  ºC on 21 / 6
 High Wind Gust Speed
19.0
  mph on day 11
34.0
   mph on 23 / 2
 High Average Wind Speed
11.8
  mph on day 11
17.8
   mph on 23 / 2
 High Barometer (Mean Sea Level)
1024.3
  hPa on day 17
1039.7
  hPa on 18 / 1
 Low Barometer (Mean Sea Level)
1004.4
  hPa on day 12
984.5
  hPa on 28 / 2
 Highest Daily Rainfall Total
26.6
  mm on day 19
26.6
  mm on 19 / 7
 High Rain Rate
2.2
  mm/min on day 19
3.4
  mm/min on 8 / 6
 OTHER STATS    
 Number of days with air frosts
0
16
 Daily Mean Temperature
 18.5 ºC
 10.15 °C
 Estimated Sunshine Hours (hh:mm)
144:06
904:06
Note: Following the 8th Congress of the World Meteorological Organization, from 1 January 1986 the term hectopascal (hPa) is preferred to the numerically identical millibar (mbar) for meteorological purposes. 1 hPa = 1mb


Up to 28th January 2014 this data was recorded using a wireless Davis Vantage Pro 1 with the datalogger and Weatherlink software. Following failure of that unit it has been replaced by a Davis Vantage Vue. Presentation to web also uses Dreamweaver 8 and customisation features of Weather Display and Weather Display Live and the VirtualVP utility. The ISS ( rain gauge / temperature and humidity sensor ) is attached to a 2m mast, facing south. It is sited above loose soil, 4m away from the house, Buildings obstruct much airflow from due S and from NE to E.

Automatic Weather Station History
28 July 2004: Wireless Davis Vantage Pro installed with passive radiation shield.
29 Oct 2004: Anemometer exposure slightly improved.
06 Jan 2005: Installed Daytime Fan Aspirated Radiation Shield (DFARS).
25 Feb 2005: Installed solar radiation sensor.
02 Sep 2005: Weatherlink software upgraded to v5.60
29 May 2006: Weatherlink software upgraded to v5.70
01 Jun 2006: Started using new software VirtualVP and Weather Display with Weather Display Live
01 Jan 2007: Installed independent lux (brightness) sensor to improve sunshine readings (not linked to above readings).
03 April 2008 Added UV Radiation sensor
28 January 2014 Davis Vantage Pro ceased working
30 January 2014 Davis Vantage Vue installed - no longer has working solar radiation or UV sensors
30 November 2014. Vue replaced by Vantage 2 sensor suite and anemometer. Solar Radiation and UV sensors reinstalled for use March to October only