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UK 24hrs

High Temp
22.3C
Swanage
 
Low Temp
5.9C
Castlederg
 
Precipitation
17mm
Tyndrum No 3
 
Sunniest
11 hours
Valley

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Cloudbase

Length of Day

12 hrs 16 min 55 sec
of Daylight Today
Which is
3 min 56 sec Shorter
Than Yesterday
(Noon)
Day-Night Graphic
Sunrise 06:42
Sunset 18:59
(Midnight)

Moon Phase


Links

Weather Underground PWS IESSEXCH11


Chelmsford Weather Station History
 Since: January 1st, 2013

Updated: @ 21/09/2026 06:50 - next update at 01:00  
Measurement: Current: Yesterday Month / MTD Year / YTD Station Record
Temperature: Warmer 1.2°C than last hour.
Thermometer Average:
Maximum
Temperature:
Minimum
Temperature:
9.9°C
9.7°C
11.6°C
12:00 AM
8.6°C
4:43 AM
 
17.2°C
20.1°C
4:53 PM
11.6°C
11:52 PM
 
17.9°C
26.8°C
06-09
8.6°C
21-09
 
13.8°C
35.6°C
26-06
-4.8°C
06-01
 
---
38.9°C
19/07/2022
-7.8°C
17/12/2022
Wind Chill:
Wind Chill Minimum
Wind Chill:
9.9°C
8.5°C 
5:39 AM
 
11.6°C
11:52 PM
 
8.5°C
21-09
 
-8.7°C
06-01
 
-15.9°C
31/03/2013
Heat Index:
Heat Index Maximum
Heat Index:
9.9°C
11.6°C
12:00 AM
 
20.1°C
4:53 PM
 
26.7°C
06-09
 
40.4°C
24-06
 
56.0°C
14/08/2022
Solar Radiation W/m2:
Heat Index Maximum
Solar Radiation:
Sunshine
Hours:
10
10
6:49 AM
00
Hours
 
703.0
11:10 AM
06
Hours
 
952.0
12-09
79
Hours
 
1239.0
05-06
1353
Hours
 
1305.0
28/05/2025
---
 
Evapotranspiration:
Heat Index Watering
Index1:
0.3
0.3
mm
 
2.7
mm
 
61.1
mm
 
---
 
 
---
 
Rain2:
Rain / Snow Melt Rainfall
or Melt:
Average:
Percent of Average:
0.00 mm
0.00 mm
 
---
---
 
0.00 mm
 
---
---
 
8.89 mm
 
34.8 mm
25.5%
 
462.50 mm
 
599.8 mm
77.1%
Rec Year5
866.2 mm
2014
---
---
Humidity:
Humidity Maximum
Humidity:
Minimum
Humidity:
78%
82%
4:20 AM
74%
12:00 AM
 
80%
2:29 AM
42%
4:01 PM
 
95%
08-09
35%
06-09
 
100%
08-01
15%
25-04
 
100%
01/12/2012
0%
13/01/2017
Dew Point:
Dew Point Maximum
Dew Point:
Minimum
Dew Point:
6.2°C
7.2°C
12:16 AM
5.4°C
5:05 AM
 
14.3°C
12:42 AM
6.5°C
7:03 PM
 
18.9°C
13-09
5.4°C
21-09
 
23.6°C
24-06
-7.8°C
25-04
 
23.6°C
24/06/2026
-12.3°C
25/01/2023
Wind: WNW
wind Maximum
Avg Wind Speed:
Avg Wind Gust:
Maximum
Wind Gust:
Wind
Run:
2.0 mph
3.4 mph
5:39 AM
0.8 mph
3.6 mph
5:45 AM
5.73
Miles
 
9.2 mph
1:44 PM
---
19.6 mph 12:15 PM
95.01
Miles
 
14.3 mph
19-09
---
24.4 mph
03-09
2313.80
Miles
 
21.9 mph
05-04
---
35.1 mph
12-03
27545.49
Miles
 
41.7 mph
18/12/2025
---
54.1 mph
18/12/2025
---
 
Barometer:  Rising 0.1 °C/hr( hPa)
Barometer Maximum
Barometer:
Minimum
Barometer:
1031.8
1031.8
6:23 AM
1031.0
2:46 AM
 
1031.2
10:56 PM
1018.5
12:02 AM
 
1031.8
21-09
1005.2
08-09
 
1032.0
25-05
975.6
11-02
 
1048.3
20/01/2020
956.2
02/11/2023
Measurement: Current: Yesterday Month / MTD Year / YTD Station Record
Version 3.02 - 31-Dec-2011 - Script by: WebsterWeatherLIVE.com
1Estimated amount of water needed to replace the water used by plants and evaporation from the past week.
(Negative numbers mean amount of water needed, positive numbers mean excess water is present.)
2Rain season: Jan 1st to Dec 31st.   5From this station's records based on complete years data for rain/snow season. Does not include current year/season

Φ = Average Reading