Daily Data for May 1997
(all times UTC)
 | Temperature: maximum, minimum, grass and accumulated (mean daily less 6 Celsius since 1st January |
| Temperature: 30 cm, 100 cm and Sea. Rainfall, Sunshine and State of Ground |
| Pressure |
| Number of Days With: Hail, Thunder, Fog, Snow and Aurora |
| Cloud |
| Relative Humidity |
| Wind Speed |
| Wind Direction |
| Weather (Synop weather code figures) |
| Visibility (Synop visibility code figures) |
Temperature (Celsius):
Max Max Min Min Min Mean Deg Days DATE 21-09 09-21 21-09 09-21 Grass 21-21 6 C+ 01-May 11.3 11.8 8.9 10.1 8.5 10.5 60.2 02-May 10.3 8.3 5.4 5.3 5.0 7.3 61.5 03-May 7.7 8.7 4.6 6.1 1.2 6.8 62.3 04-May 6.3 4.7 4.0 0.4 4.0 3.9 62.3 05-May 5.2 5.6 2.1 -0.8 0.0 3.0 62.3 06-May 4.5 5.8 0.2 0.5 -0.8 2.8 62.3 07-May 6.3 7.7 2.7 5.0 1.9 5.4 62.3 08-May 6.7 7.5 4.2 2.9 1.0 5.3 62.3 09-May 7.0 7.6 3.9 5.2 3.2 5.9 62.3 10-May 8.5 9.5 3.5 6.2 -0.6 6.9 63.2 11-May 7.5 8.7 5.5 6.9 3.5 7.2 64.4 12-May 8.8 9.2 6.8 8.1 6.5 8.2 66.6 13-May 9.5 10.5 7.3 7.7 6.5 8.8 69.4 14-May 9.4 10.7 6.9 7.8 5.7 8.7 72.1 15-May 10.5 11.9 7.2 9.0 5.6 9.7 75.7 16-May 9.5 9.9 8.0 6.5 6.1 8.5 78.2 17-May 9.4 10.2 6.0 7.7 3.8 8.3 80.5 18-May 8.3 9.0 7.2 7.1 7.0 7.9 82.4 19-May 7.7 8.2 5.8 6.6 5.0 7.1 83.5 20-May 7.3 8.2 6.2 5.9 5.9 6.9 84.4 21-May 7.2 8.1 5.3 5.7 4.4 6.6 85.0 22-May 8.4 8.5 4.0 4.3 2.6 6.3 85.3 23-May 8.1 9.5 4.3 5.7 2.8 6.9 86.2 24-May 7.6 8.7 2.2 6.4 -1.0 6.2 86.4 25-May 9.9 9.6 5.2 7.5 2.8 8.1 88.4 26-May 9.1 9.2 8.6 6.3 8.7 8.3 90.7 27-May 7.6 9.9 6.3 5.2 5.9 7.3 92.0 28-May 8.8 10.0 2.4 8.2 -0.7 7.4 93.3 29-May 9.5 11.6 7.5 8.4 7.6 9.3 96.6 30-May 9.8 11.3 7.2 8.6 7.3 9.2 99.8 31-May 9.8 10.6 8.1 8.4 8.1 9.2 103.0 Mean 8.3 9.1 5.4 6.1 4.1 7.2 Max 11.3 11.9 8.9 10.1 8.7 10.5 Min 4.5 4.7 0.2 -0.8 -1.0 2.8 Day Hst 15 1 Day Lst 4 5 24 Difference from 1974-96 -0.3 -0.4 -0.3 Mean 9.4 5.8 -2.7 7.5 Max Min Grass Mean Highest Daily 17.7 12.4 1.1 Year 1992 1992 1988 Lowest Daily 3.4 -1.6 -7.6 Year 1979 1979 1976 Highest Monthly 10.7 6.9 8.7 Year 1992 1992 1992 Lowest Monthly 8.1 4.3 6.0 Year 1979 1979 1979
Earth temps, Rainfall, Sunshine and State of Ground:
Temperature (Celsius) Rainfall (millimetres) Sunshine State of Ground 09 hr DATE 30 cm 100 cm Sea 09-21 21-09 Total (hours) E E' Snow Depth 01-May 7.7 6.7 trace trace trace 0.6 1 02-May 7.9 6.9 8.5 trace 0.5 0.5 2.1 1 03-May 7.8 7.0 0.0 5.1 5.1 4.5 1 04-May 8.0 7.0 8.3 5.1 0.2 5.3 0.0 2 05-May 7.1 7.1 0.5 0.5 1.0 10.1 1 06-May 6.7 7.1 4.3 2.3 6.6 7.5 1 07-May 6.5 7.0 0.4 trace 0.4 12.4 2 08-May 7.2 7.0 8.0 3.0 6.1 9.1 8.0 1 09-May 7.2 7.0 2.1 0.0 2.1 0.0 2 10-May 6.9 7.0 0.0 0.9 0.9 12.2 1 11-May 7.7 7.0 8.0 0.5 3.2 3.7 2.5 1 12-May 7.8 7.0 trace 0.1 0.1 10.1 1 13-May 8.2 7.2 8.7 trace 0.7 0.7 7.6 1 14-May 8.4 7.2 3.3 0.0 3.3 8.7 1 15-May 8.7 7.3 9.2 0.0 0.0 0.0 13.1 1 16-May 9.4 7.5 0.0 0.0 0.0 1.5 1 17-May 9.2 7.7 0.9 trace 0.9 5.5 1 18-May 9.1 7.8 8.8 0.0 0.0 0.0 3.2 1 19-May 8.8 8.0 0.0 0.0 0.0 3.9 1 20-May 8.5 8.0 8.7 0.0 0.0 0.0 7.6 1 21-May 8.4 8.0 trace 0.0 trace 6.0 1 22-May 8.5 8.0 4.2 0.1 4.3 9.2 1 23-May 8.5 8.0 0.0 0.0 0.0 14.8 1 24-May 8.8 7.9 trace 0.0 trace 0.9 1 25-May 8.9 8.0 9.1 14.6 2.4 17.0 3.6 1 26-May 8.8 8.0 trace 0.0 trace 0.4 1 27-May 8.8 8.1 0.0 0.1 0.1 8.5 1 28-May 8.9 8.1 8.3 0.1 trace 0.1 1.3 1 29-May 9.0 8.2 0.0 0.0 0.0 2.7 1 30-May 10.8 8.3 0.0 0.0 0.0 4.1 1 31-May 10.0 8.4 9.0 0.0 0.0 0.0 0.2 1 Total 258.2 233.5 94.6 39.1 22.2 61.3 172.8 Mean 8.3 7.5 8.6 2.1 1.3 2.8 5.6 Max 10.8 8.4 9.2 14.6 6.1 17.0 14.8 Min 6.5 6.7 8.0 Date Hst 15 25 23 Date Lst 8 Difference from 1974-96 0.0 0.2 -0.0 Mean 8.3 7.3 8.6 39.1 198.3 Highest Daily 22.2 16 Year 1985 1977 Hst Monthly 9.5 8.4 9.6 80.7 278.1 Year 1990 1990 1992 1986 1994 Lwst Monthly 6.9 6.3 7.4 3.1 118.9 Year 1979 1979 1979 1980 1983 Rain 156.7% of average Sun 87.1% of average Days with NIL Sun 2 4.9 Rain Days (>0.1mm) 15 13.6 Wet Days (>=1.0mm) 11 8.6 Snow lying (50% cover @ 09hr) 0 0.0
Pressure (mb):
DATE 00.00 06.00 09.00 12.00 15.00 18.00 21.00 Daily 01-May 1019.9 1019.6 1018.3 1017.0 1014.9 1013.6 1014.5 1016.8 02-May 1016.8 1021.3 1022.4 1022.4 1022.5 1022.7 1023.0 1021.6 03-May 1022.8 1020.4 1019.6 1018.6 1016.9 1014.6 1013.3 1018.0 04-May 1011.0 1005.0 1002.4 999.7 996.7 995.1 993.5 1000.5 05-May 993.3 992.8 993.7 994.2 994.5 994.4 994.6 993.9 06-May 993.1 990.7 989.7 989.7 989.6 990.1 990.8 990.5 07-May 990.3 989.5 990.3 992.2 993.3 994.6 995.4 992.2 08-May 995.5 995.7 996.0 996.6 996.7 996.9 997.7 996.4 09-May 997.5 995.4 998.8 1001.4 1002.9 1004.8 1006.1 1001.0 10-May 1005.5 1002.6 1001.8 1000.9 1000.5 999.9 999.5 1001.5 11-May 998.8 994.7 993.3 993.3 995.3 996.0 996.1 995.4 12-May 995.0 996.4 998.2 999.5 999.7 999.4 1000.2 998.3 13-May 1001.6 1003.6 1005.0 1005.6 1006.1 1006.9 1008.6 1005.3 14-May 1009.1 1010.4 1011.9 1013.6 1015.3 1015.9 1017.4 1013.4 15-May 1018.6 1021.2 1023.1 1024.4 1024.4 1024.7 1025.2 1023.1 16-May 1024.8 1024.9 1025.5 1025.5 1025.4 1024.8 1025.3 1025.2 17-May 1025.0 1023.3 1022.9 1022.3 1021.7 1020.9 1020.5 1022.4 18-May 1020.1 1018.1 1018.5 1018.2 1017.4 1017.5 1016.5 1018.0 19-May 1015.7 1014.2 1013.8 1013.6 1013.1 1012.8 1012.6 1013.7 20-May 1012.4 1011.7 1012.8 1013.6 1013.6 1014.4 1014.7 1013.3 21-May 1015.0 1015.8 1016.2 1016.9 1017.3 1017.9 1018.7 1016.8 22-May 1019.1 1019.6 1020.6 1021.7 1022.1 1022.7 1023.5 1021.3 23-May 1023.8 1024.9 1025.9 1026.9 1027.7 1028.3 1029.4 1026.7 24-May 1029.9 1030.9 1031.3 1031.3 1031.3 1030.8 1030.6 1030.9 25-May 1030.4 1029.0 1028.0 1026.4 1024.5 1021.0 1018.3 1025.4 26-May 1016.4 1016.7 1018.5 1020.9 1022.6 1024.6 1026.0 1020.8 27-May 1026.7 1027.4 1028.9 1029.7 1030.4 1031.0 1031.7 1029.4 28-May 1032.1 1030.7 1030.1 1029.0 1028.4 1027.3 1027.2 1029.3 29-May 1027.8 1028.3 1028.7 1029.4 1029.3 1029.0 1029.0 1028.8 30-May 1028.9 1028.3 1028.3 1028.7 1028.7 1029.0 1029.9 1028.8 31-May 1030.4 1031.3 1032.3 1032.6 1033.2 1033.9 1034.8 1032.6 Mean 1014.4 1014.0 1014.4 1014.7 1014.7 1014.7 1015.0 1014.6 Max 1032.1 1031.3 1032.3 1032.6 1033.2 1033.9 1034.8 1032.6 Min 990.3 989.5 989.7 989.7 989.6 990.1 990.8 990.5 Day Hst Highest pressure for month: 1034.8 on 31 Day Lst Lowest pressure for month : 989.5 on 7 1974-96 Mean 1015.7 Highest Monthly 1023.2 Year 1991 Lowest Monthly 1004.8 Year 1986
Days With:
DATE Hail Thunder Fog09 Gale Snw/slt Fog24 Aurora 01-May 0 0 0 1 0 0 0 02-May 0 0 0 0 0 0 0 03-May 0 0 0 0 0 0 0 04-May 0 0 0 0 1 0 0 05-May 4 0 0 0 5 1 0 06-May 4 0 0 0 5 0 0 07-May 4 0 0 0 1 0 0 08-May 4 0 0 0 1 0 0 09-May 4 0 0 0 0 0 0 10-May 0 0 0 0 0 0 0 11-May 0 0 0 0 0 0 0 12-May 0 0 0 0 0 0 0 13-May 0 0 0 0 0 0 0 14-May 0 0 0 0 0 0 0 15-May 0 0 0 0 0 0 0 16-May 0 0 0 0 0 1 0 17-May 0 0 0 0 0 0 0 18-May 0 0 0 0 0 0 0 19-May 0 0 0 0 0 0 0 20-May 0 0 0 0 0 0 0 21-May 0 0 0 0 0 0 0 22-May 4 0 0 0 1 0 0 23-May 0 0 0 0 0 0 0 24-May 0 0 0 0 0 0 0 25-May 0 0 0 0 0 1 0 26-May 0 0 1 0 0 1 0 27-May 0 0 0 0 0 0 0 28-May 0 0 0 0 0 1 0 29-May 0 0 0 0 0 0 0 30-May 0 0 1 0 0 1 0 31-May 0 0 0 0 0 1 0 Total 6 0 2 1 6 7 0 1974-96 Mean 3.1 0.3 2.0 0.7 2.5 9.2 0.1 Hst Monthly 9 2 11 2 9 22 1 Year 1995 1993 1981 1975 1995 1981 1991 Lwst Monthly 0 0 0 0 0 3 0 Year 1976 1974 1975 1978 1974 1975 1974 Hail Snow 2 Aurora Type Frequency Sleet 4 Type Frequency 1 0 1 0 2 0 (1)Gale F8 1 2 0 3 0 Total Hail (2)Gale F9 0 3 0 4 6 6 (3)Storm F10 0 4 0 5 0 3.1 (4)Storm F11 0 5 0 6 0 (5)Hurricane 0 6 0 7 0
Cloud:
DATE 00.00 06.00 09.00 12.00 15.00 18.00 21.00 Daily 01-May 8 7 8 8 8 7 8 7.7 02-May 8 7 8 7 7 6 7 7.1 03-May 7 7 7 7 8 7 7 7.1 04-May 7 8 8 8 8 8 8 7.9 05-May 7 6 7 6 6 6 6 6.3 06-May 4 7 7 7 7 7 7 6.6 07-May 7 6 4 4 3 2 5 4.4 08-May 3 6 5 5 7 6 7 5.6 09-May 7 8 7 8 8 8 1 6.7 10-May 1 6 3 2 5 7 6 4.3 11-May 7 8 7 7 7 7 7 7.1 12-May 8 7 7 6 7 7 7 7.0 13-May 6 7 7 7 7 7 7 6.9 14-May 7 6 1 5 7 7 7 5.7 15-May 6 6 6 3 5 7 6 5.6 16-May 6 7 7 8 9 9 9 7.4 17-May 4 7 7 7 8 8 8 7.0 18-May 8 8 8 8 6 7 8 7.6 19-May 7 8 6 8 8 8 8 7.6 20-May 7 7 7 7 6 5 5 6.3 21-May 7 7 7 3 6 7 7 6.3 22-May 6 1 5 7 6 5 4 4.9 23-May 6 5 4 5 3 5 5 4.7 24-May 5 7 7 7 7 7 7 6.7 25-May 7 6 8 8 8 8 8 7.6 26-May 8 9 8 7 8 7 7 7.6 27-May 7 7 7 7 1 1 1 4.4 28-May 3 7 7 7 8 8 9 6.9 29-May 8 8 7 7 7 7 7 7.3 30-May 7 7 8 9 7 5 7 7.0 31-May 8 8 7 7 7 7 7 7.3 Mean 6.4 6.8 6.5 6.5 6.6 6.5 6.5 6.5 1974-96 Mean 5.8 Highest Monthly 6.7 Year 1983 Lowest Monthly 4.3 Year 1994
Relative Humidity (%):
DATE 00.00 06.00 09.00 12.00 15.00 18.00 21.00 Daily 01-May 97 88 87 84 89 76 87 86.9 02-May 95 87 86 83 83 72 81 83.9 03-May 84 95 80 74 68 78 79 79.7 04-May 74 92 89 85 90 89 73 84.6 05-May 66 78 68 61 68 68 87 70.9 06-May 82 82 79 88 84 84 80 82.7 07-May 83 80 84 71 74 74 75 77.3 08-May 75 69 61 73 93 76 91 76.9 09-May 87 89 88 92 89 79 85 87.0 10-May 95 94 86 70 74 80 90 84.1 11-May 85 80 93 81 87 90 96 87.4 12-May 96 94 89 87 87 87 92 90.3 13-May 94 92 83 79 87 87 91 87.6 14-May 90 90 86 84 92 95 93 90.0 15-May 91 91 87 73 75 88 90 85.0 16-May 98 90 89 97 99 100 100 96.1 17-May 99 89 87 92 93 96 96 93.1 18-May 94 94 94 91 83 86 85 89.6 19-May 85 81 75 75 79 83 80 79.7 20-May 81 78 79 75 70 72 71 75.1 21-May 74 65 62 62 62 66 69 65.7 22-May 72 72 71 85 74 78 81 76.1 23-May 69 67 70 72 72 66 77 70.4 24-May 82 72 69 63 65 73 79 71.9 25-May 84 89 86 93 99 100 98 92.7 26-May 100 100 100 83 86 81 82 90.3 27-May 85 84 85 80 77 77 86 82.0 28-May 91 87 85 87 94 91 100 90.7 29-May 99 93 96 87 92 94 94 93.6 30-May 97 99 96 99 98 93 96 96.9 31-May 95 92 82 93 93 91 96 91.7 Mean 87.1 85.6 83.0 81.3 83.1 82.9 86.5 84.2 Max 100 100 100 99 99 100 100 96.9 Min 66 65 61 61 62 66 69 65.7 1974-96 Mean 86.7 Highest Monthly 93.0 Year 1981 Lowest Monthly 77.2 Year 1996
Wind Speed (knots):
DATE 00.00 06.00 09.00 12.00 15.00 18.00 21.00 Daily MxGst 01-May 18 16 15 16 16 31 32 20.6 52 02-May 26 10 8 5 7 7 3 9.4 40 03-May 4 7 3 6 4 10 13 6.7 20 04-May 13 15 23 26 25 25 28 22.1 43 05-May 28 26 27 26 23 24 18 24.6 39 06-May 20 19 15 16 14 12 20 16.6 33 07-May 13 13 8 8 7 6 6 8.7 24 08-May 7 10 15 13 15 31 25 16.6 50 09-May 25 28 22 18 21 22 13 21.3 47 10-May 7 7 9 10 10 8 9 8.6 16 11-May 7 13 15 29 21 18 16 17.0 37 12-May 15 15 15 17 19 19 18 16.9 30 13-May 22 18 19 19 20 16 13 18.1 29 14-May 12 13 14 14 13 11 11 12.6 21 15-May 10 8 7 6 6 7 8 7.4 18 16-May 8 8 6 7 11 11 12 9.0 17 17-May 9 12 14 19 14 16 18 14.6 27 18-May 17 24 23 24 26 25 28 23.9 37 19-May 27 29 29 28 28 25 27 27.6 40 20-May 28 29 27 25 27 25 25 26.6 39 21-May 23 17 18 17 15 14 13 16.7 30 22-May 12 14 14 15 8 9 9 11.6 26 23-May 11 13 14 15 14 13 9 12.7 23 24-May 7 5 6 5 8 3 5 5.6 12 25-May 0 8 11 14 12 16 20 11.6 33 26-May 15 14 12 16 22 17 16 16.0 31 27-May 11 13 11 13 16 13 8 12.1 21 28-May 5 6 11 14 11 7 8 8.9 19 29-May 12 7 6 6 6 7 6 7.1 17 30-May 10 11 12 8 3 9 3 8.0 17 31-May 5 7 7 8 6 6 10 7.0 18 Mean 13.8 14.0 14.1 14.9 14.5 14.9 14.5 14.4 29.2 Max 28 29 29 29 28 31 32 27.6 52 Min 5.6 12 Hst Gst on: 1 1974-96 Mean 13.2 47.9 Highest Monthly 17.9 59 Year 1974 1991 Lowest Monthly 9.0 39 Year 1990 1985
Wind Direction:
DATE 00.00 06.00 09.00 12.00 15.00 18.00 21.00 01-May 250 220 200 210 210 250 240 02-May 270 320 290 260 280 310 330 03-May 270 240 050 100 130 080 070 04-May 100 100 100 080 080 070 050 05-May 040 010 010 360 350 350 330 06-May 330 300 310 310 330 340 330 07-May 280 270 230 190 110 120 110 08-May 100 130 100 110 100 110 100 09-May 100 110 110 100 110 090 080 10-May 040 300 300 260 260 230 200 11-May 170 100 100 150 160 140 130 12-May 130 180 170 160 160 160 170 13-May 200 180 190 180 190 190 190 14-May 200 230 230 230 240 220 210 15-May 230 230 210 210 110 100 100 16-May 100 100 120 120 100 110 090 17-May 090 070 070 060 060 050 060 18-May 060 050 060 060 060 060 050 19-May 060 050 050 050 050 050 050 20-May 050 050 050 060 050 050 040 21-May 050 040 040 040 040 040 020 22-May 010 010 010 010 030 040 020 23-May 010 350 340 350 350 350 330 24-May 350 310 250 240 200 130 080 25-May 000 210 220 210 210 220 250 26-May 270 290 310 320 330 330 330 27-May 320 350 350 350 340 340 010 28-May 360 210 200 200 210 280 280 29-May 340 280 280 270 140 150 160 30-May 190 160 190 230 240 310 310 31-May 340 350 040 040 110 110 070 Most freq direction 100 050 050 060 110 050 330 No. Days at 09GMT: North 4 4.1 N East 6 4.1 East 5 4.0 S East 1 5.0 South 5 4.2 S West 4 2.6 West 3 3.3 N West 3 3.3 CALM 0 0.5
Weather:
(Synop weather code) DATE 00.00 06.00 09.00 12.00 15.00 18.00 21.00 01-May 20 02 02 01 01 02 50 02-May 50 20 20 03 01 01 02 03-May 02 02 25 03 02 03 02 04-May 02 61 61 61 68 68 26 05-May 02 26 15 15 27 15 85 06-May 02 15 26 85 27 15 87 07-May 80 25 15 02 15 02 25 08-May 01 15 15 15 80 05 80 09-May 80 80 25 61 20 60 01 10-May 02 02 02 02 02 02 03 11-May 03 60 21 02 03 05 61 12-May 21 02 01 03 01 02 25 13-May 02 02 02 02 15 25 02 14-May 25 02 01 25 80 80 02 15-May 02 02 02 02 03 03 03 16-May 41 02 05 46 45 45 43 17-May 28 03 02 05 05 61 21 18-May 21 05 21 05 05 05 05 19-May 05 05 05 05 05 05 05 20-May 05 05 05 05 05 02 02 21-May 03 02 15 25 15 15 15 22-May 02 15 15 80 25 15 02 23-May 02 02 15 15 15 15 15 24-May 02 15 15 02 02 50 01 25-May 02 02 03 58 59 59 61 26-May 53 45 50 01 20 03 02 27-May 02 02 02 02 01 02 02 28-May 02 02 01 21 05 44 45 29-May 10 02 20 01 40 03 02 30-May 02 10 46 45 42 28 46 31-May 10 05 05 05 28 01 10 Most freq weather 02 02 15 02 05 02 02
Visibility:
(Synop visibility code) DATE 00.00 06.00 09.00 12.00 15.00 18.00 21.00 01-May 65 70 70 70 70 65 62 02-May 62 70 70 70 80 75 80 03-May 80 80 80 82 82 82 82 04-May 80 65 60 60 40 32 65 05-May 70 70 70 70 60 70 56 06-May 75 65 70 60 65 65 62 07-May 70 70 82 84 84 86 82 08-May 82 86 86 86 62 62 35 09-May 58 56 68 35 68 65 70 10-May 75 70 70 70 75 75 70 11-May 70 70 65 70 70 62 30 12-May 40 70 75 68 68 68 68 13-May 70 75 75 75 65 65 75 14-May 75 80 80 75 62 70 75 15-May 75 75 75 82 82 80 80 16-May 08 70 68 01 01 01 02 17-May 56 75 75 62 60 60 70 18-May 65 40 45 60 62 62 62 19-May 60 65 65 62 65 65 65 20-May 65 65 65 65 65 70 70 21-May 70 80 80 80 80 80 80 22-May 80 82 70 70 75 80 82 23-May 82 84 82 82 82 84 84 24-May 82 84 84 84 84 82 82 25-May 82 80 75 62 15 03 18 26-May 02 01 08 75 75 75 75 27-May 75 75 75 80 84 84 84 28-May 84 82 82 82 62 05 01 29-May 12 70 58 70 62 65 68 30-May 65 62 08 03 03 15 02 31-May 25 62 65 50 50 82 60 Most freq vis 70 70 70 70 62 65 70
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