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Monthly Report for September 2021

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Weather Summary
Measure Mean / Sum (anomaly) Min Max Mean Time
Minimum Temperature 13.0 °C (+1.5) 7.8 °C 17.2 °C 08:37
Maximum Temperature 20.8 °C (+1.7) 14.9 °C 28.4 °C 15:32
Mean Temperature 16.8 °C (+1.6) 11.6 °C 21.6 °C
Minimum Humidity 66% 39% 86% 15:16
Maximum Humidity 93% 86% 98% 10:12
Mean Humidity 82% 70% 93%
Minimum Pressure 1016 hPa 1004 hPa 1030 hPa 13:43
Maximum Pressure 1022 hPa 1011 hPa 1033 hPa 09:13
Mean Pressure 1019 hPa 1010 hPa 1032 hPa
Mean Wind Speed 2.9 mph (-1.0) 0.4 mph 7.9 mph
Maximum Wind Speed 10.1 mph 4.6 mph 18.2 mph 13:27
Maximum Gust 15.7 mph 8.0 mph 27.4 mph 13:19
Mean Wind Direction 193° [SSW] 8° [N] 354° [N]
Rainfall 40.5 mm (81%) 0.0 mm 17.5 mm
Maximum Hourly Rain 2.7 mm 0.3 mm 6.9 mm 14:26
Maximum 10-min Rain 1.3 mm 0.3 mm 3.3 mm 14:27
Maximum Rain Rate 17 mm/h 1.1 mm/h 60 mm/h 15:46
Minimum Dew Point 10.9 °C 5.2 °C 15.3 °C 09:38
Maximum Dew Point 15.8 °C 11.4 °C 19.0 °C 14:08
Mean Dew Point 13.5 °C 7.7 °C 16.6 °C
Night Minimum (21-09) 13.3 °C 7.8 °C 17.3 °C 05:29
Day Maximum (09-21) 20.8 °C 14.9 °C 28.4 °C 15:32
Max 10m Temp Rise 0.6 °C 0.2 °C 1.0 °C 10:51
Max 1hr Temp Rise 2.2 °C 0.4 °C 3.5 °C 11:11
Max 1hr Hum Rise 7% 2% 14% 16:39
Max 10m Temp Fall 0.4 °C 0.2 °C 1.2 °C 16:11
Max 1hr Temp Fall 1.5 °C 0.7 °C 3.3 °C 18:34
Max 1hr Hum Fall 9% 2% 14% 11:34
Max 10m Wind Speed 7.5 mph 2.9 mph 14.1 mph 14:43
Minimum Feels-like 14.8 °C 5.3 °C 21.4 °C 09:05
Maximum Feels-like 25.0 °C 15.3 °C 34.7 °C 15:02
Mean Feels-like 19.9 °C 11.5 °C 25.9 °C
Air-frost Hrs 0 hrs 0 hrs 0 hrs
Minimum PM2.5 0.0 µg/m3 0.0 µg/m3 0.0 µg/m3 n/a
Maximum PM2.5 n/a n/a n/a
Mean PM2.5 n/a n/a n/a
Temperature Range 7.9 °C (+0.3) 3.5 °C 13.8 °C
Humidity Range 26% 8% 56%
Pressure Range 6 hPa 2 hPa 16 hPa
Sun Hours 139 (95%) [41%]
Wet Hours 28 (68%) [3.9%]

NB: Hover over a value to see how many days of data it is from. Sun hrs, Wet hrs, Cloud cover and Events are based on manual observation and provided for interest only.

Days Of...
Rainfall Temperature Sunshine Other
> 0.0 mm 8 Min < -5.0 °C 0 > 0 hrs 29 Falling Snow 0
> 0.1 mm 8 Min < 0.0 °C 0 > 1 hrs 21 Lying Snow 0
> 0.3 mm 8 Mean < 0.0 °C 0 > 3 hrs 15 Hail 0
> 1.0 mm 7 Mean > 20.0 °C 2 > 5 hrs 12 Thunder 0
> 5.0 mm 2 Max > 25.0 °C 3 > 10 hrs 3 Dense Fog 0
> 10.0 mm 2 Max > 30.0 °C 0 > 25% max poss. 16 Gusts > 30mph 0
> 20.0 mm 0 Min > 20.0 °C 0 > 95% max poss. 1 Total Events 0

Misc.

Mean rainfall for days with >0.3mm: 5.1 mm
Total snowfall: 0.0 mm

Graphs and Charts

Mean Temperature

Variable
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Intraday conditions

Per-minute readings across the month (downsampled for display). Choose a variable below.

Wind rose

Daily breakdown

Day numbers link to the detailed daily report. Wide tables can be scrolled horizontally.

Temperature, rain, sunshine & wind

DayTminTmaxTmeanRainHr max10m rainRateSunWmeanWmaxGustWdirW10m
113.718.015.60.0---04.911.919.437°8.8
214.419.216.40.0---35.411.219.447°8.2
313.821.117.10.0---11.97.911.476°5.7
412.918.615.90.0---0.51.68.212.5105°6.0
513.124.618.20.0---81.47.110.3120°4.3
613.327.019.90.0---110.44.68.0198°2.9
714.628.421.40.0---121.88.314.8148°5.4
816.128.021.62.21.20.53.6112.712.019.4132°9.6
916.822.119.20.50.30.3-0.74.110.317.1220°7.8
1017.220.918.64.53.42.93014.811.518.2232°9.5
1115.622.318.90.0---43.79.717.1272°7.7
1212.221.116.80.0---40.85.69.125°3.7
1312.820.616.40.0---22.29.114.8122°7.2
1415.318.816.617.56.71.9140.51.27.311.4131°5.1
1513.119.116.10.0---21.38.311.48°5.0
1610.822.116.60.0---81.58.312.5258°6.2
1713.820.416.80.0---62.28.712.5230°7.2
1812.623.618.20.0---51.69.512.5167°6.2
1914.820.117.01.21.20.53.611.07.011.4324°5.3
2011.819.015.30.0---32.99.814.8354°7.0
2110.320.515.00.0---100.87.411.4321°4.4
2210.021.415.70.0---102.210.914.8277°8.0
2312.420.716.60.0---63.312.520.5282°9.4
2413.122.517.50.0---82.79.914.8262°7.8
2513.218.116.60.0---0.50.85.99.1257°3.9
2612.721.416.70.0---24.213.819.4224°10.9
2712.217.615.92.61.40.7767.017.127.4234°13.1
2810.617.613.810.86.93.36024.915.525.1210°11.8
298.414.911.60.0---95.315.922.8301°11.7
307.815.712.41.20.80.31.10.37.918.227.4229°14.1

Humidity, dew point & pressure

DayHminHmaxHmeanDminDmaxDmeanPminPmaxPmean
172888111.213.712.4103010331032
266877811.813.912.5102610311029
368867911.315.813.4102010261023
478908410.615.313.2101910211020
563948111.818.414.7102010241022
652967912.219.015.9102310251024
73995708.218.715.1101910241022
847917113.817.515.6101010191014
973938515.318.516.6100810111010
1077908615.217.816.3101010151012
1161907811.616.514.9101510191017
1258927710.414.612.6101910201020
1357918011.214.212.7101610211019
1486969313.017.515.4101110161013
1576948711.815.113.9101310181015
166397829.916.113.3101710191018
1763928112.014.913.4101210181015
1856957811.316.513.9101410161015
1977928712.516.214.8101310191015
2074918410.014.812.6101910291024
216395829.214.411.7102910321031
226397809.014.512.1102410321028
2374898210.216.313.5101910251021
2465938111.716.514.0101510191017
2586949012.115.914.8101410161015
2669988611.816.814.2101210141013
275693788.315.611.8100410201012
287093838.513.411.0101110201017
295893785.511.47.7101110271020
307694845.213.69.8101410271021

Other measures

DayNightDaymaxT+10mT+1hH+1hT-10mT-1hH-1hFminFmaxFmeanAF hrsAQminAQmaxAQmean
113.718.00.41.450.30.9615.820.918.00---
214.419.20.61.940.30.9616.722.218.90---
313.821.10.51.860.41.5515.725.620.10---
412.918.60.51.830.41.2514.522.618.90---
513.124.60.62.570.41.6715.430.522.00---
613.327.00.62.8140.73.3915.733.324.50---
714.628.40.73.5130.52.01417.734.725.50---
816.128.00.52.8120.61.91419.432.825.90---
916.822.10.72.050.30.9821.227.824.30---
1017.220.90.41.3100.71.5921.426.223.50---
1117.322.30.62.560.31.51017.726.422.80---
1212.221.10.73.0120.52.01013.724.619.40---
1312.820.60.52.090.31.21114.723.419.00---
1415.318.80.30.620.31.0218.124.420.90---
1514.419.10.51.360.52.1715.323.119.50---
1610.822.10.83.490.41.61412.026.219.60---
1713.820.40.61.680.51.5916.123.819.80---
1812.623.60.73.2140.31.41114.527.921.60---
1915.420.10.62.680.41.41117.324.820.80---
2011.819.00.72.640.31.1813.122.817.90---
2110.320.50.82.780.62.61011.223.817.10---
2210.021.40.72.850.31.51410.924.918.10---
2312.420.70.52.240.31.0513.925.519.70---
2413.122.50.62.450.31.01015.327.220.90---
2516.318.10.20.440.31.5215.522.620.40---
2612.721.41.02.580.42.0814.926.420.20---
2716.117.60.51.391.22.11013.021.518.10---
2810.617.60.52.0110.81.91211.220.215.60---
298.414.90.61.680.41.385.315.311.50---
307.815.70.62.350.20.765.518.213.50---

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