Daily Report for 30th June 2009
| Measure | Value (anomaly) | Time |
Month cumul. | Record High | Record Low |
| Minimum Temperature |
16.1 °C (+4.1) |
05:13 |
11.5 °C (+0.4) |
17.2 °C (+5.2), 2010 |
8.5 °C (-3.5), 2014 |
| Maximum Temperature |
29.4 °C (+7.9) |
15:30 |
21.3 °C (+1.1) |
29.4 °C (+7.9), 2009 |
18.3 °C (-3.2), 2020 |
| Mean Temperature |
22.1 °C (+6.0) |
|
16.1 °C (+0.7) |
22.4 °C, 2015 |
14.8 °C, 2014 |
| Minimum Humidity |
34% |
17:06 |
48% |
66%, 2020 |
24%, 2015 |
| Maximum Humidity |
91% |
06:34 |
87% |
95%, 2014 |
72%, 2010 |
| Mean Humidity |
64% |
|
69% |
78%, 2020 |
45%, 2015 |
| Minimum Pressure |
1020 hPa |
19:09 |
1015 hPa |
1024 hPa, 2011 |
999 hPa, 2017 |
| Maximum Pressure |
1023 hPa |
16:17 |
1019 hPa |
1026 hPa, 2011 |
1010 hPa, 2016 |
| Mean Pressure |
1022 hPa |
|
1017 hPa |
1025 hPa, 2011 |
1004 hPa, 2017 |
| Mean Wind Speed |
n/a (-4.4) |
|
0.0 mph (-4.4) |
8.5, 2012 |
1.8, 2014 |
| Maximum Wind Speed |
n/a |
|
0.0 mph |
20.5, 2016 |
9, 2014 |
| Maximum Gust |
n/a |
|
0.0 mph |
27.7, 2012 |
12.1, 2014 |
| Mean Wind Direction |
n/a |
|
|
|
|
| Rainfall |
0.0 mm |
|
70.6 mm (128%) |
0.7 mm, 2014 |
|
| Maximum Hourly Rain |
n/a |
|
|
0.7, 2014 |
|
| Maximum 10-min Rain |
n/a |
|
|
0.3, 2014 |
|
| Maximum Rain Rate |
n/a |
|
|
0.7, 2014 |
|
| Minimum Dew Point |
9.6 °C |
22:10 |
7.0 °C |
11.0 °C, 2019 |
4.8 °C, 2011 |
| Maximum Dew Point |
18.1 °C |
10:20 |
12.7 °C |
18.4 °C, 2019 |
9.5 °C, 2011 |
| Mean Dew Point |
14.0 °C |
|
9.8 °C |
14.0 °C, 2009 |
6.8 °C, 2011 |
| Measure | Value | Time |
Month cumul. | Record High | Record Low |
| Night Minimum (21-09) |
16.1 °C |
|
11.7 °C |
17.2 °C, 2010 |
8.5 °C, 2014 |
| Day Maximum (09-21) |
29.4 °C |
|
21.3 °C |
29.4 °C, 2009 |
18.3 °C, 2020 |
| Max 10m Temp Rise |
0.8 °C |
10:07 |
0.8 °C |
0.9 °C, 2018 |
0.4 °C, 2016 |
| Max 1hr Temp Rise |
3.1 °C |
13:14 |
2.5 °C |
3.3 °C, 2015 |
1.5 °C, 2012 |
| Max 1hr Hum Rise |
13% |
21:45 |
9% |
17%, 2011 |
7%, 2010 |
| Max 10m Temp Fall |
1.6 °C |
21:45 |
0.6 °C |
1.6 °C, 2009 |
0.3 °C, 2016 |
| Max 1hr Temp Fall |
3.2 °C |
21:45 |
1.9 °C |
3.2 °C, 2009 |
0.9 °C, 2020 |
| Max 1hr Hum Fall |
13% |
10:57 |
12% |
17%, 2014 |
6%, 2020 |
| Max 10m Wind Speed |
n/a |
|
0.0 mph |
16.4, 2016 |
5.9, 2011 |
| Minimum Feels-like |
n/a |
|
0.0 °C |
19.3, 2010 |
8.6, 2011 |
| Maximum Feels-like |
n/a |
|
0.0 °C |
31, 2019 |
20.5, 2011 |
| Mean Feels-like |
n/a |
|
0.0 °C |
23.8, 2019 |
15.9, 2014 |
| Air-frost Hrs |
0 hrs |
|
0 hrs |
0 hrs, 2009 |
0 hrs, 2009 |
| Measure | Value (anomaly) |
Month cumul. | Record High | Record Low |
| Temperature Range |
13.3 °C (+3.8) |
9.8 °C (+0.7) |
15.9 °C (+6.4), 2015 |
5.0 °C (-4.5), 2020 |
| Humidity Range |
57% |
39% |
57%, 2009 |
20%, 2020 |
| Pressure Range |
3 hPa |
5 hPa |
11 hPa, 2017 |
2 hPa, 2011 |
| Measure | Value [% of max] |
Month cumul. | Record High | Record Low |
| Sun Hours |
14.9 [99%] | 192 hrs (101%) [43%] |
15 [99%], 2015 |
0.3 [2%], 2020 |
| Wet Hours |
0 | 37 hrs (99%) [5.1%] |
3, 2016 |
0, 2009 |
| Cloud Cover |
not available |
| Events |
Maximum possible sunshine |
| Comments |
- |
| Extra Comments |
|
| Issues |
Tmax corrected as unreliable |
| Observer Absent? |
No |
| Pond Temperature (Heath) |
0.0 °C |
- Notes
- Times of extremes are computed using the midpoint of the longest continuous period at that extreme value.
Cumulative anomalies are reported according to the expected value for the month-to-date rather than month-end.
Sun hrs, Wet hrs, Cloud cover and Events are based on manual equipment/observations (entered with a delay of 1-10 days); their reliablity is questionable and they
are provided for interest only.
View monthly summary
Daily Graph of Conditions
Webcam Summary of Cloud Conditions
Webcam summary not available for this day
Wind rose
