September 1999
Date Time T RH Tmax Tmin T1 T10 T30 T50 MSLP Rain Gust Weather
01/09/99 18 23.7 51 25.2 9.7 20.5 18.8 17.4 16.0 1023 0.0 2 Sunny periods. 02/09/99 18 25.3 45 26.4 11.0 20.9 19.6 16.8 16.2 1021 0.0 6 Sunny periods. 03/09/99 18 24.8 36 26.9 11.3 20.5 19.8 17.0 16.4 1019 0.0 5 Sunny. 04/09/99 18 24.1 48 27.0 8.5 20.7 19.2 16.8 16.4 1019 0.0 7 Sunny. Increasing high cloud. 05/09/99 19 19.7 79 27.1 11.5 19.3 19.2 17.0 16.4 1013 0.8 7 Sunny. Thunderstorm in evening. 06/09/99 18 24.0 54 27.6 11.0 20.3 19.3 16.8 16.3 1009 0.0 5 Sunny periods. 07/09/99 17 22.0 50 24.0 14.1 19.4 18.8 16.9 16.5 1014 0.0 11 Occasional drizzle around midday then sunny spells. 08/09/99 17 20.6 68 22.0 8.1 18.3 17.4 16.5 16.2 1015 0.0 13 Sunny spells. 09/09/99 18 18.4 57 21.1 10.3 17.8 17.5 16.5 16.1 1027 0.0 9 Sunny then variable cloud. 10/09/99 18 23.7 60 24.6 5.4 18.9 17.4 16.0 15.7 1023 1.5 9 Rain overnight. Sunny spells. 11/09/99 18 24.8 54 27.5 15.8 20.6 19.2 16.8 15.9 1021 0.0 12 Dry and mainly sunny. 12/09/99 18 19.0 45 24.8 16.0 18.2 18.4 17.1 16.4 1013 0.0 7 Sunny periods. 13/09/99 18 16.7 57 21.4 8.1 16.2 16.8 16.4 16.0 1013 0.0 6 Cloudy morning. Sunny periods. 14/09/99 20 13.9 92 16.7 10.4 14.2 15.0 15.6 15.0 1014 4.9 2 Rain at times. 15/09/99 18 13.6 94 13.9 11.6 14.0 14.2 15.0 15.2 1011 6.7 2 Rain. 16/09/99 18 17.0 79 18.0 9.2 15.4 15.0 15.2 14.8 1009 6.4 12 Rain AM. Sunny periods. 17/09/99 18 16.2 74 19.5 9.0 14.8 14.8 14.8 14.5 1005 0.3 15 Sunny periods. 18/09/99 23 15.0 90 17.5 10.2 14.0 14.6 14.6 14.5 996 1.4 15 Increasing cloud. rain in evening. 19/09/99 18 16.8 93 17.5 13.7 16.7 16.0 14.9 14.5 993 7.1 10 Rain AM. Dry afternoon. Rain again in evening. 20/09/99 18 15.0 93 16.8 13.7 15.7 15.4 15.2 14.9 990 31.0 3 Heavy rain overnight then showers. Sunny intervals in afternoon. 21/09/99 18 17.2 73 20.0 10.5 16.2 16.0 15.0 14.8 986 0.0 8 Early fog then sunny spells. 22/09/99 18 16.6 90 18.9 12.9 16.2 16.1 15.3 14.9 999 5.1 9 Increasing cloud. Thunderstorm in afternoon. Thunderstorm mid-evening. 23/09/99 18 17.0 90 18.2 13.2 16.2 15.9 15.1 14.9 1001 28.8 12 Thunderstorms overnight then showers and sunny spells. 24/09/99 17 17.9 80 20.0 14.3 16.9 16.3 15.3 15.0 1009 1.7 8 Sunny spells and sharp showers. 25/09/99 18 17.0 78 19.3 13.0 16.3 16.2 15.4 14.9 1003 8.6 19 Heavy showers early AM then dry with sunny spells. 26/09/99 17 15.8 69 17.3 10.2 15.2 15.2 15.0 14.9 1002 2.3 8 Showers and sunny spells. 27/09/99 17 16.0 79 17.7 11.8 15.4 15.1 14.8 14.7 995 3.1 14 Rain overnight then cloudy with a few showers. 28/09/99 18 15.2 78 17.0 10.4 14.4 14.2 14.8 14.5 1003 0.8 7 Sunny AM then becoming cloudy with occasional rain in evening. 29/09/99 18 16.0 80 17.3 12.9 14.6 14.7 14.8 14.5 1000 7.1 14 Sunny spells. Heavy shower around midday with a rumble of thunder. 30/09/99 18 14.1 76 17.2 11.7 14.1 14.5 14.8 14.3 998 0.2 11 Sunny spells then cloudy with showers PM.
Summary
Highest day max 27.6 6th Lowest day max 13.9 15th Lowest night min 5.4 10th Highest night min 16.0 12th Mean day max 20.9 Mean night min 11.3 Mean temperature 16.1
Total rainfall 117.8 mm Highest daily total 31.0 20th No. rain days (>= 0.2) 18 No. wet days (>= 1.0) 14
Mean pressure 1008 Highest value read 1027 9th Lowest value read 986 21st
Mean RH 70%
Mean 10 cm earth temperature 16.7 Mean 30 cm earth temperature 15.8 Mean 50 cm earth temperature 15.4
No. days with air frost 0 No. days with thunder 4 No. days with snow 0 No. days with sleet 0 No. days with hail < 0.5 cm 0 No. days with hail >=0.5 cm 0
Max gust 28 mph corrected to 10m on 25th
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