|
September 2020 |
 |
|
Our beach - Jacob's Ladder just
west of Sidmouth with its lovely orange-red Triassic sandstone
cliffs and sand |
|
Summer lasted through until the
23rd with dry, warm and sunny weather then much cooler and unsettled
with rain. Overall September was drier, sunnier and slightly cooler
than normal. Driest September since 2014 (9.8 mm), sunniest since
2015 (225.4 hours) and coolest since 2017 (14.7°C). |
|
Summary for September 2020 |
|
Mean Max: |
20.4ºC |
(+1.3ºC) |
|
Mean Min: |
9.1ºC |
(-1.8ºC) |
|
Mean: |
14.8ºC |
(-0.2ºC) |
|
High Max: |
26.6ºC |
16th |
|
Low Max: |
14.9ºC |
24th |
|
High Min: |
16.3ºC |
3rd |
|
Low Min: |
2.8ºC |
28th |
|
Mean Grass Min: |
6.0ºC |
|
|
Grass Min: |
0.0ºC |
26th |
|
Days >25°C |
2 Days |
|
|
Days >20°C |
18 Days |
|
|
Nights >15°C |
2 Days |
|
|
Nights <10°C |
17 Days |
|
|
Rain Total (gauge): |
26.0 mm |
(46%) |
|
Rain Total (tipping bucket): |
27.4 mm |
(48%) |
|
Rain Days >0.2 mm: |
6 Days |
|
|
Rain Days >1.0 mm: |
4 Days |
|
|
Max 24 hrs: |
11.4 mm |
30th |
|
Days without any rain: |
24 |
|
|
Air Frost: |
0 Days |
|
|
Grass Frost: |
0 Days |
|
|
Snow Falling: |
0 Days |
|
|
Snow (50%) @ 9am: |
0 Days |
|
|
Ice Days: |
0 Days |
|
|
Thunder Heard: |
0 Days |
|
|
Hail <5 mm: |
0 Days |
|
|
Hail >5 mm: |
0 Days |
|
|
Fog @ 9am: |
0 Days |
|
|
Total Monthly Sunshine: |
207.5 Hours |
(119%) |
|
Most Sunshine in a Day: |
12.6 Hours |
1st |
|
Average Daily Sunshine: |
6.9 Hours |
|
|
Sunless Days: |
0 Days |
|
|
Cloudless Days: |
0 Days |
|
|
Total Possible Sunshine: |
377.5 Hours |
|
|
Percentage of Total Sun: |
55% |
|
|
Average Sunny Interval: |
21.2 |
mins |
|
Maximum UV Index: |
6.8 |
2nd |
|
Mean Soil Temp @ 10 cm: |
15.6ºC |
|
|
Min Soil Temp @ 10 cm: |
12.7ºC |
27th |
|
Max Soil Temp @ 10 cm: |
17.1ºC |
9th |
|
Mean Soil Temp @ 30 cm: |
15.9ºC |
|
|
Min Soil Temp @ 30 cm: |
13.4ºC |
28th |
|
Max Soil Temp @ 30 cm: |
16.9ºC |
4th |
|
Mean Soil Temp @ 100 cm: |
15.9ºC |
|
|
Min Soil Temp @ 100 cm: |
15.0ºC |
28th |
|
Max Soil Temp @ 100 cm: |
16.7ºC |
1st |
|
Ave 10 Min Wind >39 mph: |
0.00 Days |
|
|
N: |
8.09 Days |
26% |
|
NE: |
2.99 Days |
10% |
|
E: |
0.88 Days |
3% |
|
SE: |
0.42 Days |
1% |
|
S: |
2.44 Days |
8% |
|
SW: |
3.23 Days |
10% |
|
W: |
0.95 Days |
3% |
|
NW: |
4.03 Days |
13% |
|
Calm: |
6.97 Days |
22% |
|
Wind Chill Low: |
2.5ºC |
28th |
|
Mean Wind: |
2.6 mph |
|
|
Max Gust: |
32 mph |
30th |
|
Mean Cloud Cover: |
45% |
|
|
Mean RH @ 9am: |
94% |
|
|
Rain >0.1mm/hour: |
6.3 Hours |
|
|
Frost Duration: |
0.0 Hours |
|
|
Air Frost in a Day: |
0.0 Hours |
|
|
Mean Sea Temperature: |
17.2ºC |
(+0.1ºC) |
|
Normal for Month: |
17.1ºC |
|
|
Max Sea Temperature: |
19.2ºC |
16th |
|
Min Sea Temperature: |
15.4ºC |
29th |
|
Mean Pressure @ 9am: |
1017.6 hPa |
|
|
Mean Pressure: |
1017.2 hPa |
|
|
Max Pressure: |
1027.2 hPa |
17th |
|
Min Pressure: |
990.5 hPa |
24th |
|
Max Change in 24 hours: |
22.8 hPa |
25th |
|
Radiation Daily Mean: |
12.73 MJ/m² |
|
|
Max Daily Value: |
22.17 MJ/m² |
1st |
|
Min Daily Value: |
2.70 MJ/m² |
30th |
|
Number of Days with Data: |
30 Days |
|
|
1-Hour Maximum: |
758 W/m² |
5th |
|
Starting Time of the Hour: |
|
13:00 |
|
Max Dewpoint: |
20.2ºC |
3rd |
|
Min Dewpoint: |
1.9ºC |
28th |
|
Mean Dewpoint: |
11.6ºC |
|
|
Max Humidity: |
98% |
2nd |
|
Min Humidity: |
48% |
1st |
|
Mean Humidity: |
82% |
|
 |
|
|
|
Weather Data for Otter Valley, Devon.
September 2020 |
|
|
Temp oC |
Grass |
Hum (%) |
Soil oC
(cm) |
Soil |
DP (oC) |
Wind (mph) |
Rain |
Air (hPa) |
W/m² |
UV |
Sun |
Frost |
Sea |
Observations |
|
|
Min |
Max |
Min |
Min |
Max |
10 |
30 |
100 |
(cb) |
Min |
Max |
Max |
Ave |
Run |
mm |
Min |
Max |
Max |
Max |
Hours |
Hours |
Temp |
|
1 |
6.6 |
21.5 |
5.0 |
48 |
97 |
16.2 |
16.4 |
16.7 |
0.0 |
5.9 |
13.5 |
14 |
1.7 |
40 |
0.0 |
1019 |
1021 |
727 |
5.3 |
12.6 |
0.0 |
17.6 |
Sunny all day |
|
2 |
6.4 |
20.0 |
5.0 |
77 |
98 |
15.9 |
16.3 |
16.2 |
0.0 |
5.7 |
17.0 |
22 |
3.2 |
77 |
0.0 |
1017 |
1020 |
601 |
6.8 |
4.9 |
0.0 |
17.4 |
Sunny intervals all day |
|
3 |
16.3 |
22.9 |
10.0 |
75 |
96 |
17.1 |
16.7 |
16.1 |
0.0 |
11.9 |
20.2 |
17 |
4.7 |
112 |
0.0 |
1014 |
1020 |
517 |
6.3 |
3.9 |
0.0 |
17.4 |
Sunny intervals all day |
|
4 |
8.6 |
20.4 |
6.1 |
67 |
98 |
16.7 |
16.9 |
16.1 |
0.0 |
7.7 |
14.6 |
13 |
1.5 |
36 |
0.0 |
1019 |
1023 |
868 |
6.0 |
3.1 |
0.0 |
17.3 |
Sunny intervals all day |
|
5 |
7.0 |
19.5 |
5.0 |
57 |
98 |
16.2 |
16.5 |
16.1 |
0.0 |
6.1 |
12.7 |
19 |
2.4 |
57 |
0.0 |
1022 |
1024 |
854 |
5.8 |
8.9 |
0.0 |
17.0 |
Sunny intervals all day |
|
6 |
11.1 |
18.7 |
7.8 |
77 |
97 |
16.1 |
16.2 |
16.1 |
0.0 |
9.9 |
16.7 |
12 |
1.1 |
28 |
4.4 |
1021 |
1023 |
907 |
6.0 |
6.7 |
0.0 |
17.0 |
Sunny intervals all day |
|
7 |
8.4 |
18.8 |
6.7 |
80 |
98 |
15.9 |
16.2 |
16.1 |
0.0 |
7.7 |
16.9 |
13 |
1.5 |
35 |
0.4 |
1023 |
1025 |
693 |
4.6 |
5.9 |
0.0 |
17.0 |
Sunny intervals all day |
|
8 |
14.4 |
23.2 |
11.7 |
80 |
95 |
16.7 |
16.3 |
16.1 |
0.0 |
13.2 |
19.8 |
9 |
1.4 |
32 |
0.0 |
1025 |
1027 |
566 |
5.9 |
6.4 |
0.0 |
17.7 |
Sunny intervals all day |
|
9 |
12.8 |
21.2 |
8.3 |
77 |
97 |
17.1 |
16.7 |
16.1 |
0.0 |
11.5 |
18.4 |
14 |
2.0 |
47 |
0.0 |
1023 |
1026 |
446 |
4.7 |
2.5 |
0.0 |
17.5 |
Sunny intervals all day |
|
10 |
6.1 |
20.0 |
4.4 |
60 |
98 |
16.3 |
16.6 |
16.1 |
0.0 |
5.4 |
13.8 |
9 |
1.1 |
27 |
0.0 |
1020 |
1026 |
870 |
5.4 |
6.3 |
0.0 |
17.3 |
Sunny intervals all day |
|
11 |
5.4 |
16.9 |
3.3 |
73 |
98 |
15.8 |
16.3 |
16.1 |
0.0 |
4.7 |
12.9 |
12 |
1.6 |
37 |
0.0 |
1017 |
1021 |
363 |
3.0 |
1.1 |
0.0 |
16.9 |
Brief sunny intervals |
|
12 |
8.8 |
20.4 |
6.1 |
73 |
98 |
15.9 |
16.1 |
16.1 |
0.0 |
7.9 |
16.7 |
16 |
2.2 |
52 |
0.0 |
1017 |
1023 |
678 |
5.6 |
9.5 |
0.0 |
17.2 |
Sunny intervals all day |
|
13 |
7.0 |
21.6 |
5.0 |
74 |
98 |
15.7 |
16.1 |
16.1 |
0.0 |
6.3 |
17.6 |
13 |
1.3 |
32 |
0.0 |
1022 |
1024 |
781 |
5.2 |
11.7 |
0.0 |
17.3 |
Sunny all day |
|
14 |
8.3 |
25.0 |
6.7 |
57 |
98 |
15.7 |
16.0 |
16.1 |
0.0 |
7.5 |
17.7 |
11 |
1.3 |
30 |
0.0 |
1017 |
1023 |
590 |
4.6 |
12.1 |
0.0 |
17.9 |
Sunny all day |
|
15 |
12.5 |
24.9 |
9.4 |
69 |
96 |
16.2 |
16.1 |
16.0 |
0.0 |
11.4 |
19.6 |
11 |
1.7 |
40 |
0.0 |
1016 |
1021 |
617 |
4.3 |
6.2 |
0.0 |
17.8 |
Sunny intervals all day |
|
16 |
15.9 |
26.6 |
12.8 |
60 |
97 |
17.1 |
16.5 |
15.6 |
0.0 |
15.0 |
19.8 |
12 |
2.6 |
63 |
0.0 |
1021 |
1024 |
533 |
4.0 |
8.4 |
0.0 |
17.9 |
Sunny intervals all day |
|
17 |
13.4 |
23.1 |
9.4 |
51 |
95 |
16.9 |
16.7 |
15.8 |
0.0 |
11.6 |
15.8 |
14 |
2.5 |
60 |
0.0 |
1023 |
1027 |
548 |
4.6 |
11.9 |
0.0 |
17.6 |
Sunny all day |
|
18 |
10.8 |
22.7 |
7.2 |
52 |
94 |
16.1 |
16.4 |
16.1 |
0.0 |
8.9 |
14.0 |
15 |
2.7 |
66 |
0.0 |
1017 |
1024 |
585 |
4.7 |
9.3 |
0.0 |
17.4 |
Sunny intervals all day |
|
19 |
12.6 |
24.1 |
10.6 |
58 |
90 |
16.1 |
16.1 |
16.1 |
0.0 |
9.6 |
16.3 |
23 |
4.6 |
111 |
0.0 |
1013 |
1018 |
653 |
4.8 |
5.8 |
0.0 |
17.3 |
Sunny intervals all day |
|
20 |
13.9 |
24.4 |
11.7 |
60 |
90 |
16.6 |
16.2 |
16.1 |
0.0 |
11.9 |
17.3 |
16 |
4.4 |
105 |
0.0 |
1015 |
1018 |
594 |
4.4 |
9.8 |
0.0 |
17.5 |
Sunny intervals all day |
|
21 |
10.4 |
23.8 |
7.8 |
61 |
97 |
16.3 |
16.4 |
16.1 |
0.9 |
9.5 |
17.2 |
13 |
2.0 |
49 |
0.0 |
1015 |
1018 |
526 |
4.5 |
11.7 |
0.0 |
17.7 |
Sunny all day |
|
22 |
8.1 |
18.5 |
5.6 |
87 |
98 |
15.8 |
16.1 |
16.1 |
2.0 |
7.3 |
16.7 |
16 |
2.4 |
58 |
0.0 |
1006 |
1016 |
401 |
2.9 |
1.5 |
0.0 |
17.5 |
Brief sunny intervals |
|
23 |
14.1 |
16.3 |
5.0 |
73 |
97 |
16.1 |
16.1 |
16.1 |
3.0 |
7.8 |
14.9 |
20 |
2.2 |
52 |
6.4 |
1000 |
1006 |
450 |
3.9 |
1.9 |
0.0 |
17.3 |
Rain am, sunny ints pm |
|
24 |
6.2 |
14.9 |
2.8 |
62 |
97 |
14.9 |
15.8 |
15.6 |
3.1 |
5.3 |
10.8 |
28 |
5.0 |
121 |
4.2 |
991 |
1002 |
680 |
3.7 |
5.9 |
0.0 |
17.1 |
Sunshine and showers |
|
25 |
4.3 |
16.4 |
1.1 |
57 |
97 |
14.0 |
15.1 |
15.6 |
2.2 |
3.5 |
9.0 |
31 |
5.6 |
134 |
0.0 |
991 |
1014 |
744 |
3.8 |
9.5 |
0.0 |
16.7 |
Sunny intervals all day |
|
26 |
3.2 |
16.0 |
0.0 |
49 |
97 |
13.2 |
14.2 |
15.6 |
0.4 |
2.3 |
7.5 |
20 |
2.9 |
70 |
0.0 |
1014 |
1017 |
611 |
4.1 |
11.3 |
0.0 |
16.5 |
Sunny all day |
|
27 |
4.0 |
18.6 |
0.0 |
52 |
97 |
12.7 |
13.7 |
15.5 |
1.7 |
3.0 |
10.2 |
22 |
3.6 |
85 |
0.0 |
1015 |
1017 |
558 |
3.9 |
11.3 |
0.0 |
16.1 |
Sunny all day |
|
28 |
2.8 |
17.9 |
0.0 |
83 |
97 |
12.8 |
13.4 |
15.0 |
2.0 |
1.9 |
16.2 |
9 |
0.6 |
15 |
0.6 |
1013 |
1016 |
582 |
3.5 |
2.3 |
0.0 |
15.9 |
Sunny ints am, light rain pm |
|
29 |
10.1 |
20.1 |
4.4 |
61 |
98 |
13.7 |
13.9 |
15.0 |
3.2 |
6.6 |
15.1 |
9 |
0.8 |
21 |
0.0 |
1014 |
1017 |
677 |
3.9 |
4.8 |
0.0 |
16.0 |
Sunny intervals all day |
|
30 |
4.8 |
15.0 |
2.2 |
90 |
98 |
13.4 |
13.9 |
15.0 |
3.0 |
4.0 |
14.5 |
32 |
6.5 |
144 |
11.4 |
1001 |
1015 |
129 |
1.5 |
0.7 |
0.0 |
16.1 |
Rain am, brief sunny ints pm |
|
|
9.1 |
20.4 |
6.0 |
67 |
97 |
15.6 |
15.9 |
15.9 |
0.7 |
7.7 |
15.4 |
16 |
2.6 |
1838 |
27.4 |
1015 |
1020 |
612 |
4.6 |
207.5 |
0.0 |
17.2 |
|
 |
|
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|
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|
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