NOAA Report: December


Untitled 1


LOCAL CLIMATOLOGICAL DATA
Month: 12 / 2025
Station Location: Hillview, Harrow, United Kingdom
Lat.051:35:36 Long.0000:21:51
Elevation: 200 Feet Above Sea Level
Temperature
(Celsius)
Humidity
(%)
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
Max Min Heating Cooling Sign.
Cond.
Sun
Hours
Max
Solar
w/m2
Solar
(kwh)
Max
UV
Evapo-
trans-
piration
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
11.4
11.6
10.6
08.2
09.7
11.9
13.6
13.6
14.1
14.1
12.0
11.9
09.4
10.8
11.6
11.2
10.3
11.5
11.2
10.4
10.4
11.3
08.4
06.3
05.6
06.1
07.4
06.7
05.9
07.0
04.4
05.7
06.0
00.5
-00.8
-02.6
08.5
05.1
09.5
10.5
07.6
05.1
05.4
00.7
05.0
09.7
01.9
-00.4
09.7
01.3
00.0
07.1
08.2
05.4
02.6
02.0
02.3
01.5
04.2
04.0
00.2
-02.3
09.8
08.5
05.5
05.9
03.8
09.8
10.3
11.6
12.3
10.1
09.2
09.4
05.2
08.1
10.5
08.7
05.2
10.6
07.2
04.9
09.0
09.2
06.6
04.4
03.3
04.1
04.7
06.0
04.9
03.2
-00.2
+4.2
+3.1
-0.3
+0.4
-2.5
+3.8
+4.2
+5.9
+7.0
+5.3
+5.1
+4.6
+0.2
+2.5
+4.1
+2.8
+0.2
+4.7
+1.7
-0.3
+2.3
+2.2
-0.8
-2.7
-2.7
-1.4
-0.9
+0.6
-0.6
-3.5
-7.4
08.3
06.5
03.8
04.5
02.2
07.9
08.6
10.1
10.4
07.6
07.2
07.8
03.5
06.2
08.3
07.1
03.7
09.4
04.7
03.0
07.8
08.0
04.5
00.9
-00.9
01.5
02.7
03.1
02.1
01.2
-01.7
09.0
07.6
04.7
05.3
03.1
08.9
09.5
10.8
11.3
08.9
08.3
08.7
04.5
07.2
09.4
08.0
04.6
10.0
06.1
04.1
08.4
08.6
05.7
03.1
01.8
03.1
03.9
04.8
03.8
02.5
-00.8
92
92
94
93
94
93
94
93
93
91
93
92
93
93
89
92
94
94
89
93
94
94
92
84
83
89
91
90
89
91
93
87
78
81
89
79
82
81
86
80
74
81
87
82
79
82
87
85
88
75
78
89
88
82
69
61
79
81
79
79
77
79
08.5
09.8
12.8
12.4
14.5
08.5
08.0
06.7
06.0
08.2
09.1
08.9
13.1
10.2
07.8
09.6
13.1
07.7
11.1
13.4
09.3
09.1
11.7
13.9
15.0
14.2
13.6
12.3
13.4
15.1
18.5
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
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SNOW
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SNOW
-----
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SNOW
00.0
05.8
04.8
00.1
02.4
00.4
00.0
00.0
00.0
03.9
04.7
00.0
04.8
04.0
01.9
00.0
00.0
00.0
05.4
05.9
00.0
00.1
00.0
04.2
06.4
01.4
03.2
00.0
00.0
02.5
00.0
055.4
296.0
271.3
059.4
363.3
241.6
038.6
142.6
096.0
369.3
298.0
104.0
261.4
334.6
287.1
057.4
078.2
032.7
226.7
316.8
090.1
252.4
034.6
292.1
241.6
275.2
316.8
061.4
059.4
348.5
238.6
000.2
001.1
001.1
000.2
000.8
000.5
000.2
000.4
000.2
000.9
001.0
000.3
001.0
001.0
000.6
000.1
000.3
000.1
000.9
001.1
000.3
000.6
000.1
000.9
001.1
000.5
000.8
000.2
000.2
000.8
001.1
00.0
00.7
00.6
00.0
00.6
00.6
00.0
00.0
00.0
00.6
00.6
00.0
00.5
00.6
00.6
00.0
00.0
00.0
00.5
00.6
00.0
00.5
00.0
00.5
00.5
00.5
00.6
00.0
00.0
00.6
00.6
00.0
00.6
00.4
00.1
00.5
00.8
00.4
00.4
00.6
00.6
00.5
00.2
00.4
00.5
00.7
00.1
00.4
00.6
00.4
00.4
00.3
00.4
00.5
00.9
01.1
00.5
00.5
00.4
00.4
00.4
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
03.0
03.2
00.2
08.2
03.2
03.2
08.2
02.8
09.5
00.0
00.2
00.2
00.2
00.2
00.0
01.1
00.2
22.4
00.0
00.2
03.6
00.2
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.6
1001.2
1001.6
1006.4
0998.2
1001.5
0995.7
1000.3
1007.0
1003.3
1014.4
1017.3
1016.6
1025.8
1017.2
1005.6
1008.5
1013.4
1003.7
1013.9
1011.3
1006.0
1007.0
1017.5
1030.6
1027.9
1028.9
1033.5
1031.6
1028.6
1032.8
1027.8
009
003
002
003
005
005
004
004
007
003
004
003
001
005
006
003
004
007
002
002
004
003
005
008
008
005
005
004
003
003
001
035
015
012
017
030
024
023
016
026
022
020
015
010
024
020
016
024
028
017
013
020
014
023
026
029
018
020
018
015
013
010
~211
~209
~203
~191
~188
~247
~233
~224
~215
~245
~201
~197
~219
~212
~196
~054
~214
~210
~256
~156
~114
~116
~090
~090
~084
~086
~078
~081
~071
~037
~304
  9.9

4.0

07.2

+1.6

5.2

6.3

    0011.1

0000.0

  Total
67.0
        Total
0.0
Total
65.6
1014.0

04.2

19.7

172


Maximum Temperature: 14.1
Minimum Temperature: -02.6
Maximum Pressure: 1034.6
Minimum Pressure: 0991.6
Maximum Daily Precip: 22.4 (mm)
Maximum Daily Snowfall: 0.0 (cm)

Gale: 0 Day(s)
Maximum Wind: 035
Wind Run: 3126.8miles
Heating Degree Days: 345.5
Cooling Degree Days: 000.0

Max. Temp. >= 30 Was 0 Day(s)
Max. Temp. <= 0 Was 0 Day(s)
Min. Temp. <= 30 Was 31 Day(s)
Min. Temp. <= -18 Was 0 Day(s)
Precipitation >= 0.2mm Was 12 Day(s)
Precipitation >= 2.5mm Was 10 Day(s)
Snowfall >= 25mm Was 0 Day(s)