M (1) 57
METEOROLOGICAL RETURNS, 1927.
MONTHLY VALUES of METEOROLOGICAL ELEMENTS.
MONTHLY VALUES of the METEOROLOGICAL ELEMENTS in the YEAR 1927.
Barometric Pressure.
(British Units).
Air Temperature.
Month, 1927.
Highest.
Lowest.
Mean.
Mean Diurnal Inequality (Range).
Highest.
Lowest.
Range in Month.
Mean of the Daily Maxima.
Mean of the Daily Minima.
Mean Daily Range.
Mean of Evaporation.
Temperature Highest.
Vapour Tension
ins. ins. ins. ins. ins. January.... 30.296 29.796 *305 *697 •651 0.112 751 470 February.. 30'030 29'993 0'127 0.389 March....... 102 742 45'9 28.3 62.2 55.2 April................. *018 -627 .829 May.... 29'937 *421 *727 7.0 585 550 102 767 June........ .816 *501 ·6+4 078 912 73-6 17-6 85 July......................... .812 28.927 *598 066 905 754 15°1 865 August.... ·803 *953 September....... *950 29.525 •765 083 931 739 19′2 87′5 October. 30*142 *579 *905 090 88-3 603 280 796 November......... *204 '682 *964 098 824 58-7 [2317 75'9 December...... *199 *770 30.016 Year. 30'305 28-937 *102 79′9 49′1 30·8 |7 02 61-9 Date. Feb. July 25. Aug. Feb. 19. 7. ... Aug. 6. Dec 9.Degree of Humidity.
Clouds.
Bright Sunshine.
Rainfall.
Wind.
Month, 1927.
Mean.
Lowest.
Mean amount (0-100).
Direction of motion * of Upper. Lower
Daily Duration of Possible
Percentage Sunshine
Total, Duration.
Resultant. †
Observed Velocity Direct- ion.*
Velo city.-
Mean, t Maxi- Maxi- mum.† mumt Hourly Squall
% hrs % ins. hrg. ins. ins. m.p.h. m.p.h. m.p.h. Jan...... 74 de t 0'310 20 30015 0145 | 0·040 +3 Feb...... 78 35 90 271 92 434 14 4'350 82 I I 0·053 1·685 Mar...... 80 43 91 267 92 65:7 18 47535 93 Dec...... 73 Year. 78 24 72 282 114 182 19 | 41 Date. Aug. 20d 14b Aug. 16h 15h23m Dines-Baxendell Anemograph Dec. 9. May 23. May 1413h *North, go°-East &c. + Beckley Anemograph.