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JANUARY 2007
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| Note | A total hosepipe and sprinkler ban is in effect in South East Water & Mid Kent Water supply areas until further notice. |
| 1st - 5th | After overnight squalls, fine sunny start to 2007, showers from a trough late pm with one lightning flash observed with thunder. A bright day on the 2nd with some sunshine, but the 3rd was dull. The 4th and 5th largely dry and feeling mild as the strength of the wind slackens, with some brightness. |
| 6th - 13th | Mostly overcast and dull with heavy rain showers late pm 6th. Increasingly windy but very mild. Squalls again in the early am of the 10th from a cold front. Rather severe storm on the 11th causes disruption from high winds and flooding over much of the UK. Passage of weak cold front late on the 13th. |
| 14th - 20th | A ridge of HP over northern France gives a rare sunny day on the 14th and a bright day on the 15th, but back to gloomy and damp weather on the 16th with rain and drizzle from late morning to early afternoon. Becoming windy and wet again as depressions track across the UK. Severe storm starting in the early hours of the 18th and continuing into the afternoon results in many fatalities across the UK. Much damage with widespread power cuts and travel disruption. Still very gusty overnight on the 19th and 20th although the daylight hours were dry, bright and less windy. Passage of cold front around dawn on the 20th. |
| 21st - 26th | Becoming colder gradually, as Polar Maritime then Arctic Maritime air tracks from the north. Rain showers on 22nd and 23rd followed by approx 2 hours snowfall before dawn on the 24th leaving a covering of around 12mm. More snow and wintry showers on 25th and 26th but no accumulation. |
| 27th - 31st | The brief cold spell ends with HP to the W and the wind backing to a less cold Returning Polar Maritime source. A dry and calm end to the month, with a mixture of cloudy and brighter weather. |
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| ‡ SUN: Sunshine hours are calculated approximately and solely from solar radiation readings, but note that the solar sensor's exposure to sunshine is limited. The sensor receives only 50 - 60% of total possible sunshine exposure this month. There is no allowance for sunshine by visual observation only, so the figures above can be very significantly less than the actual daily sunshine duration. THW = Shaded Heat Index calculated with cooling/warming effect of wind and humidity to give an apparent temperature. THSW = Unshaded Heat Index calculated with cooling/warming effect of wind, humidity and full direct sunshine to give an apparent temperature. EVAPO-TRANSPIRATION is drying effect due to sun and wind, and is equivalent to "negative rainfall" |
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DAILY STATS JANUARY
2007 |
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TEMPERATURE ºc |
HUMIDITY |
SUN ‡ |
PRESSURE |
RAINFALL |
WIND SPEED |
DIRECTION |
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DATE |
Minimum (21-09h) |
Maximum (09-21h) |
RH % at 14.00 |
Dewpoint ºc at 14.00 |
Bright sun hrs |
hPa † at 14.00 |
Day Total (mm) |
Average (mph) |
High Gust (mph) |
Dominant (Compass) |
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1st |
5.4 | 9.3 | 64 | 2.7 | 1.2 | 1015.4 | f | 6.6 | 4.3 | 27 | SSW |
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2nd |
3.9 | 8.9 | 62 | 1.9 | 0.3 | 1022.4 | rs | 0.3 | 3.3 | 22 | W |
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3rd |
4.7 | 11.0 |
82 | 7.4 | 0.0 | 1020.0 | f | 0.8 | 5.8 | 32 | SSW |
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4th |
8.3 | 10.4 | 67 | 4.5 | 1.4 | 1012.1 | rs | 0.3 | 4.1 | 21 | SSW |
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5th |
7.2 | 11.4 | 84 | 8.4 | 0.1 | 1016.2 | fs | 0.0 | 3.5 | 20 | SSW |
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6th |
3.8 | 10.8 | 90 | 9.0 | 0.0 | 1008.7 | fq | 5.6 | 2.2 | 24 | SSW |
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7th |
5.6 | 10.5 | 79 | 6.9 | 0.0 | 1010.0 | f | 2.5 | 6.2 | 22 | SSW |
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8th |
6.6 | 12.4 | 87 | 7.2 | 0.0 | 998.4 | fq | 3.6 | 5.4 | 27 | SSW |
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9th |
11.6 | 12.7 | 83 | 9.3 | 0.0 | 1005.4 | rs | 0.3 | 9.5 | 32 | SSW |
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10th |
9.5 | 12.8 | 68 | 3.1 | 0.8 | 1011.4 | rq | 3.0 | 6.3 | 32 | SSW |
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11th |
4.9 | 12.6 | 86 | 8.6 | 0.3 | 1005.3 | st | 3.0 | 8.0 | 36 | SSW |
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12th |
7.7 | 12.6 | 77 | 8.5 | 0.1 | 1018.9 | f | 0.0 | 6.3 | 29 | SSW |
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13th |
9.8 | 11.4 | 78 | 7.5 | 0.0 | 1015.6 | f | 0.8 | 6.1 | 26 | SSW |
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14th |
4.7 | 9.9 | 59 | 2.2 | 3.2 | 1029.2 | fs | 0.0 | 2.2 | 14 | SSW |
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15th |
2.7 | 9.3 | 69 | 3.5 | 2.1 | 1020.6 | f | 0.0 | 2.5 | 20 | SSW |
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16th |
9.0 | 10.5 | 89 | 8.1 | 0.0 | 1013.6 | f | 2.8 | 5.1 | 22 | SSW |
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17th |
10.4 | 11.4 | 84 | 6.4 | 0.8 | 1004.8 | st | 9.4 | 6.0 | 29 | SSW |
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18th |
8.5 | 13.5 | 70 | 8.1 | 0.3 | 989.2 | rs | 8.4 | 9.2 | 40 | SSW |
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19th |
10.7 | 12.6 | 69 | 6.8 | 1.6 | 1017.5 | rs | 0.0 | 5.4 | 29 | SSW |
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20th |
8.2 | 10.0 | 59 | 2.2 | 2.4 | 1011.7 | rs | 2.3 | 6.5 | 32 | SSW |
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21st |
4.9 | 7.9 | 55 | -0.7 | 2.8 | 1011.8 | rs | 0.0 | 4.7 | 28 | SSW |
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22nd |
-0.6 | 4.1 | 88 | 0.9 | 0.0 | 1016.9 | r | 6.3 | 1.2 | 17 | NNW |
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23rd |
0.4 | 2.6 | 73 | -1.9 | 0.8 | 1017.5 | f | 0.3 | 3.4 | 19 | NNW |
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24th |
-1.4 | 2.9 | 88 | 0.1 | 0.4 | 1010.7 | st | 1.0 | 0.4 | 12 | NNW |
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25th |
-0.3 | 1.6 | 89 | -0.2 | 0.3 | 1026.8 | st | 1.8 | 0.2 | 11 | NNW |
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26th |
-2.0 | 5.2 | 82 | 1.9 | 0.5 | 1022.3 | f | 0.8 | 0.4 | 10 | SSW |
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27th |
2.7 | 8.7 | 65 | 2.4 | 2.4 | 1032.0 | st | 0.0 | 0.4 | 10 | SSW |
28th |
4.3 | 9.1 | 68 | 2.9 | 1.3 | 1026.8 | f | 0.0 | 1.8 | 14 | SSW |
29th |
6.4 | 10.5 | 73 | 5.4 | 0.9 | 1026.4 | fs | 0.0 | 0.2 | 7 | NNW |
30th |
6.6 | 8.0 | 85 | 5.5 | 0.0 | 1024.9 | f | 0.0 | 0.0 | 6 | SSW |
31st |
2.3 | 10.2 | 64 | 3.4 | 3.5 | 1021.9 | fs | 0.0 | 1.2 | 14 | SSW |
| ‡ SUN: Sunshine hours are calculated approximately and solely from solar radiation readings, but note that the solar sensor's exposure to sunshine is rather limited. The sensor receives less than 50% of total possible sunshine exposure this month, and there is no allowance for sunshine by visual observation only, so the figures above can be very significantly less than the actual daily sunshine duration. |
| † Barometer trend (previous 3 hours) : f = falling, st = steady, r = rising; q = quickly, s = slowly |