Coleshill, 10:00 to 12:00, 1997–2020
 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 24 years, 4.4% of daylight visibility records missing, 4.7% of daylight precipitation records missing, 4.6% of daylight wind records missing.

This is the analysis for the average of 24 years  (1997–2020).
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 3 3 3 3 3 2 2 3 ​ 30  8%
≤ 10 mph 8 7 8 10 12 14 14 15 12 10 9 9 ​ 128  35%
≤ 15 mph 13 13 15 19 18 20 20 21 19 18 14 14 ​ 205  56%
≤ 20 mph 15 15 17 20 20 21 21 22 20 19 16 15 ​ 218  60%
≤ 30 mph 16 16 18 21 20 21 21 22 21 20 17 16 ​ 228  62%
≤ 40 mph 16 16 19 21 21 21 21 22 21 20 17 16 ​ 230  63%
any wind 16 16 19 21 21 21 21 22 21 20 17 17 ​ 231  63%
‘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 24 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       −0.1     ​+0.2
≤ 10 mph +0.3 +0.2 +0.1 +0.2 +0.4 +0.1 +0.3 +0.2 +0.3 +0.3 +0.1 +0.2 ​+2.5
≤ 15 mph +0.3 +0.2 +0.1 +0.3 +0.3   +0.2 +0.1 +0.2 +0.1   +0.2 ​+2.0
≤ 20 mph +0.2 +0.2 +0.1 +0.3 +0.3 +0.1 +0.2 +0.1 +0.2 +0.1 −0.1   ​+1.4
≤ 30 mph +0.2 +0.1 +0.2 +0.3 +0.4 +0.1 +0.2 +0.2 +0.3 +0.2 −0.1 +0.1 ​+2.1
≤ 40 mph +0.2 +0.2 +0.2 +0.3 +0.4 +0.1 +0.2 +0.2 +0.3 +0.2 −0.1 +0.1 ​+2.4
any wind +0.3 +0.2 +0.2 +0.3 +0.4 +0.1 +0.2 +0.2 +0.3 +0.2 −0.1 +0.1 ​+2.4
Empty cells indicate negligible change; ‘Total’ shows the sum of the trends 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 23 22 25 26 26 26 27 28 25 25 23 24 ​ 299  82%

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 19 23 24 24 23 23 24 23 23 21 20 ​ 267  73%

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 5 5 4 5 6 5 6 5 5 5 6 ​ 62  17%
≤ 10 mph 16 14 14 14 18 19 20 19 18 17 16 17 ​ 202  55%
≤ 15 mph 25 23 25 26 28 28 29 28 27 27 26 26 ​ 318  87%
≤ 20 mph 28 25 28 28 30 29 30 30 28 29 28 28 ​ 341  93%
≤ 30 mph 30 27 30 30 31 30 31 31 30 31 30 30 ​ 359  98%
≤ 40 mph 31 28 31 30 31 30 31 31 30 31 30 31 ​ 364  100%
Please send any comments, questions, or corrections to me, Mike Cowlishaw, at mfc@speleotrove.com.

All text Copyright © Mike Cowlishaw 2008, 2021. All rights reserved. The pages and data here are for non-commercial use only.
This page was last edited on 2021-05-09.