Coleshill, 10:00 to 12:00, 1997–2015
 Home 



Met Office station 19187: Coleshill, Warwickshire  (B46 3); OS grid reference: SP 210869.
Coordinates:  N52°28'48" W1°41'20"  (52.480 -1.689), elevation 96 m.
Note: gusts not recorded in 13 out of the 19 years, 5.2% of daylight visibility records missing, 5.9% of daylight precipitation records missing, 5.7% of daylight wind records missing.

This is the analysis for the average of 19 years  (1997–2015).
Time slot: 10:00 to 12:00  (two hours); click below for any-hour analysis, or a different start time, or for whole day analysis (all times are GMT):

any-hour  06:00  08:00  10:00  12:00  14:00  16:00  18:00  all-day

‘Flyable days’ analysis

This is the number of days in each month, on average, for which (in this timeslot) the visibility was adequate, and there was no bad weather, and the wind speed was less than or equal to that shown on the left.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Total
≤ 5 mph 2 2 2 2 2 3 3 3 3 2 2 2  29  8%
≤ 10 mph 7 6 8 10 11 14 13 14 13 10 8 8  122  33%
≤ 15 mph 13 13 15 18 17 21 20 21 19 18 14 13  202  55%
≤ 20 mph 14 14 17 20 19 21 21 22 20 19 16 15  217  59%
≤ 30 mph 15 15 18 20 19 22 21 22 21 20 17 16  225  62%
≤ 40 mph 15 15 19 20 19 22 21 22 21 20 17 16  227  62%
any wind 15 15 19 20 20 22 21 22 21 20 17 16  228  62%
‘Total’ shows the total flyable days, on average, in a year, and the same as a percentage.

Trend analysis

This is the average change (per year, over the 19 years) in the average number of days in each month for which (in this timeslot) the visibility was adequate, and there was no bad weather, and the wind speed was less than or equal to that shown on the left.

For example, if a value of +0.5 is shown for a given month then that implies that since 1997 the number of flyable days in that month has increased by (on average) half a day per year.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Total
≤ 5 mph       +0.1   +0.1     +0.1         
≤ 10 mph +0.2 +0.2 +0.2 +0.2 +0.1 +0.2 +0.3   +0.6 +0.3   +0.1  +0.2
≤ 15 mph +0.3 +0.3 +0.2 +0.4 +0.1 +0.3 +0.3 +0.1 +0.6 +0.3 −0.2 +0.1  +0.2
≤ 20 mph +0.2 +0.2 +0.2 +0.4 +0.1 +0.4 +0.3 +0.2 +0.5 +0.2 −0.3    +0.2
≤ 30 mph +0.2 +0.1 +0.3 +0.5 +0.2 +0.5 +0.3 +0.3 +0.6 +0.3 −0.2    +0.3
≤ 40 mph +0.2 +0.2 +0.4 +0.5 +0.3 +0.5 +0.3 +0.3 +0.7 +0.4 −0.1 +0.1  +0.3
any wind +0.3 +0.2 +0.4 +0.5 +0.3 +0.5 +0.3 +0.3 +0.7 +0.4 −0.1 +0.1  +0.3
Empty cells indicate negligible change; ‘Total’ shows the average trend over the whole year.

Visibility analysis

This is the number of days in each month, on average, for which (in this timeslot) the visibility was adequate. That is, for the entire timeslot:
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Total
Good days 22 21 24 25 26 26 27 27 24 24 23 23  291  80%

Bad weather analysis

This is the number of days in each month, on average, for which (in this timeslot) no bad weather occurred. That is, for the entire timeslot, there was no rain, hail, snow, snow on the ground, icing conditions, thunderstorms, etc.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Total
Good days 20 20 23 24 23 24 23 24 24 24 21 20  270  74%

Wind speed analysis

This is the number of days in each month, on average, for which (in this timeslot) the maximum (gust) wind speed was less than or equal to the value shown on the left.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Total
≤ 5 mph 6 6 5 4 5 6 5 6 6 5 5 6  66  18%
≤ 10 mph 15 14 15 14 17 19 20 19 18 16 15 16  198  54%
≤ 15 mph 25 24 25 26 27 28 30 29 27 27 25 26  319  87%
≤ 20 mph 28 26 28 28 30 29 31 30 29 29 28 29  344  94%
≤ 30 mph 30 28 31 30 31 30 31 31 30 31 30 30  361  99%
≤ 40 mph 31 28 31 30 31 30 31 31 30 31 30 31  365  100%

Please send any comments, questions, or corrections to me, Mike Cowlishaw, at mfc@speleotrove.com.

All text Copyright © Mike Cowlishaw 2008, 2017. All rights reserved. The pages and data here are for non-commercial use only.
This page was last edited on 2017-01-01.