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MY WEATHER OBSERVATIONS FOR DECEMBER 1999

Date Sunshine (Hours) Rainfall (Inches) Maximum Temperature (Faraneit) Minimum Temperate (Faraneit) Wind Direction Additional Comments
December 1
4.0
0.29
50
46
West
December 2
3.6
0.47
52
37
North-West
Gusts up to 45mph - 7-8pm
December 3
2.8
0.94
47
39
North-West
Strong gusts up to 80mph. Snow showers
December 4
4.3
0.22
43
34
North-West
December 5
3.8
0.00
49
32
North-West
December 6
0.0
0.00
55
34
South-West
December 7
2.2
0.11
46
43
North-East
December 8
0.0
0.24
47
40
South-East
Gusts up to 35mph
December 9
5.2
0.31
45
39
North-East
Gusts early hours up to 6am
December 10
3.2
0.15
50
39
North-West
December 11
0.0
0.80
48
36
Calm
December 12
0.0
0.04
44
40
North-West
December 13
1.6
0.20
43
38
North
December 14
6.0
0.16
37
30
North-West
Snow 5.30pm - 7pm
December 15
3.4
0.10
40
32
North-West
Snow 10am
December 16
4.6
0.03
51
32
North-West
December 17
4.0
0.02
50
38
West
December 18
6.1
0.00
41
26
Calm
December 19
6.8
0.00
34
28
North-West
December 20
3.6
0.00
35
22
Calm
December 21
0.9
0.08
39
23
South-East
Snow at 6am but melted later
December 22
0.0
0.12
50
38
South-East
December 23
3.5
0.04
47
39
South-West
December 24
2.3
0.43
54
40
South-West
December 25
3.0
0.25
43
37
South-West
Snow 1.30pm but didn't last
December 26
2.7
0.08
43
36
West
December 27
1.2
0.08
41
35
Calm
December 28
4.9
0.00
39
30
West
December 29
6.3
0.00
40
30
North-West
December 30
0.0
0.00
43
36
South
December 31
2.0
0.03
46
37
South
92 hours
130.8 mm
44.9
35
Average
54 hours
62 mm
46
35

The mean temperature for December 1999 was 4.4C (39.9F).

The usual mean temperature for December is 4.7C (40.5F)

The prevailent wind direction was North-West.

The Highest Day Maxima was 55F on December 6th.

The Lowest Day Maxima was 34F on December 19th.

The Highest Night Minima was 46F on December 1st.

The Lowest Night Minima was 22F on December 20th.

The Sunniest Day was December 19th with 6.8 Hours.

The Wettest Day was December 3rd with 0.94 inches of rain (23.9 millimetres).

The Highest Air Pressure was 1026 MB on December 16th.

The Lowest Air Pressure was 983 MB on December 26th.

There were Six sunless days all month.

Snow fell on five days during the month. It was a very stormy month as strong winds were recorded four times, on the 2nd, 3rd, 8th and 9th December.

It was the wettest December since 1993 but the sunniest December since 1973.

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