Monthly Weather Data Derbyshire Lane Sheffield South Yorkshire Aug 1999
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  Max Temp Min Temp Dry Bulb Wet Bulb Grass Min Soil Temp Barometer  Rain Humidity Max Gust Average Force Win Dir Comments
Day Deg F Deg F Deg F Deg F Deg F Deg F Inches MM Percent MPH MPH Beaufort
1 88.5 57.5 62.1 60.8 52.0 65.5 30.06 2.2 93 NE Storm early hot
2 86.7 57.6 67.1 63.3 52.5 66.6 30.01 0.1 80 E Sunny and humid
3 75.2 60.6 68.0 62.6 58.5 67.5 29.86 0.2 73 E Many cloudy some sun
4 80.6 59.8 69.4 64.4 54.0 66.2 29.92 1.3 75 E
5 75.2 58.0 60.3 59.5 58.3 66.6 29.83 0.1 96 NE
6 80.8 55.0 66.2 63.3 48.8 65.1 29.92 0.8 85 SE Hot and humid
7 63.5 57.3 59.5 58.5 57.1 65.8 29.78 1.8 93 NE Murky drizzle a.m.
8 64.0 63.0 55.8 63.5 29.70 24.7   ne Heavy overnight rain
9 59.7 55.0 56.3 56.1 55.0 61.7 29.64 25.0 99 NE Heavy rain
10 61.3 49.5 51.8 51.3 50.1 59.9 29.94 0.0 96 N
11 68.0 47.5 57.2 50.9 43.7 59.7 30.15 0.5 62 S Sunny periods
12 63.1 50.6 53.8 52.3 50.8 60.8 30.15 2.0 90 E Dull cloudy and chilly
13 68.2 51.8 62.2 58.8 52.1 60.8 29.92 0.8 81 S Showers sunny periods
14 69.4 53.8 61.7 55.4 51.8 61.3 29.50 4.0 65 W Sonny AM thundery showers p.m.
15 66.2 52.0 59.0 54.3 46.4 60.8 29.71 0.1 72 W Sunny periods few showers
16 66.2 47.0 59.9 54.0 41.9 59.9 29.77 2.4 66 W
17 63.5 47.0 57.2 53.6 40.7 59.0 29.66 0.5 78 S Dull early thunder and lightning p.m.
18 69.8 51.0 55.4 54.5 44.0 59.0 29.42 10.6 94 Calm windy early dull
19 61.9 51.8 56.1 52.9 48.0 59.4 29.75 0.0 80 NW Dull cloudy earlier on brighter later
20 63.5 47.2 53.6 50.9 39.9 58.1 30.13 0.0 82 W Bright
21 66.2 43.0 57.6 50.0 35.0 59.0 30.28 0.0 55 NE Chilly start brighter later
22 67.6 39.7 55.0 50.5 33.5 58.6 30.25 0.0 71 ne Bright and breezy
23 69.8 39.8 60.8 55.8 47.6 59.5 30.14 0.0 71 NE Cloudy
24 63.5 50.0 58.1 54.7 48.2 59.9 30.12 6.1 79 E misty
25 68.9 54.3 59.9 59.7 54.9 61.0 29.92 3.0 99 E  
26 70.0 58.0 65.3 59.4 56.0 61.3 29.80 0.0 69 SE
27 70.0 55.1 62.8 57.0 51.3 60.8 30.04 0.0 68 SW
28 74.7 54.8 70.0 62.6 47.1 61.3 30.20 0.0 64 SW
29 72.5 52.0 66.0 60.4 45.0 61.7 30.13 0.0 71 Calm
30 65.3 49.6 57.7 54.0 43.0 61.0 30.12 0.0 77 S
31 70.0 57.1 62.4 59.0 56.7 61.2 30.10 0.0 82 W Many cloudy a few sunny spells breezy
Total 2153.8 1626.4     1519.7 1912.5   86.2 2366.0 0.0 0.0 0.0  
Ave 69.5 52.5     49.0 61.7   2.8 78.9 #DIV/0! #DIV/0! #DIV/0!
  129.2%
N 1.0
NNE 0.0 Number of Air Frosts 0 Red indicates as Snow
NE 8.0 Number of Ground Frosts 0 Light green Sleet
ENE 0.0 Days of measurable Rain 19 Blue Trace Conditions
E 5.0 Days of rain greater than 10 mm 3
ESE 0.0 Days when gusts exceeded 50 mph 0
SE 2.0 Days when average Max exceeded 13
SSE 0.0 Days below average Max 17
S 4.0 Days above average Min 15
SSW 0.0 Days below average Min 16
SW 2.0
WSW 0.0 1st seven day average 68.3 20.2
W 5.0 2nd Seven day average 58.9 15.0
WNW 0.0 3rd seven day average 56.9 13.8
NW 1.0 4th seven day avaerage 59.7 15.4
NNW 0.0 Final few days average 61.1 16.2
Overall Average 61.0 16.1