LOCAL CLIMATOLOGICAL DATA
Month: 07 / 2025
Station Location: Hounslow, London, UK
Lat.051:27:49 Long.0000:22:13
Elevation: 60 Feet Above Sea Level
Temperature
(Celsius)
Degree Days
Base 18 Degrees
  Snow/
Ice On
Ground
(cm)
Rain
(mm)
Pressure
(Hpa)
Wind-
speed
(mph)
D
A
Y
Max Min Avg Diff
From
Normal
Avg
Dew
Point
Avg
Wet
Bulb
Heating Cooling Sign.
Cond.
Sun
Hours
Max
Solar
w/m2
Solar
(kwh)
Max
UV
Snow-
fall
Water
Equiv.
Avg
Sea
Level
Avg
Speed
Max
Speed
Avg
Dir.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
34.1
25.1
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
22.4
17.1
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
28.1
20.4
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
+8.4
+1.6
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
18.7
13.0
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
22.0
16.1
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
00.0
00.0
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
09.8
02.1
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
09.0
05.3
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
977.0
896.0
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
004.8
003.4
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
08.0
06.0
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
00.0
00.0
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
00.0
01.0
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
1012.4
1016.5
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
03.5
05.4
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
17.3
20.7
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
~341
~033
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
  29.6

19.7

24.2

+4.8

15.9

19.1

0000.0

0005.9

  Total
14.0
      Total
0.0
Total
1.0
1014.5

04.4

19.0

023


Maximum Temperature: 34.1
Minimum Temperature: 17.1
Maximum Pressure: 1023.7
Minimum Pressure: 1011.4
Maximum Daily Precip: 1.0 (mm)
Maximum Daily Snowfall: 0.0 (cm)

Gale: 0 Day(s)
Maximum Wind: 20.7
Wind Run: 213.3miles
Heating Degree Days: 000.0
Cooling Degree Days: 011.9

Max. Temp. >= 30 Was 1 Day(s)
Max. Temp. <= 0 Was 0 Day(s)
Min. Temp. <= 30 Was 2 Day(s)
Min. Temp. <= -18 Was 0 Day(s)
Precipitation >= 0.2mm Was 1 Day(s)
Precipitation >= 2.5mm Was 0 Day(s)
Snowfall >= 25mm Was 0 Day(s)