Climatological Information (1991-2020)

Station : NEW DELHI (SAFDARJUNG)(42182)
State : DELHI

Parameter SEPTEMBER
03 UTC 12 UTC
Mean Station Level Pressure [ in hPa ] 981.6 978.5
Mean Dry Bulb Temperature [ in °C ] 27.5 31.9
Mean Wet Bulb Temperature [ in °C ] 24.4 25.6
Mean Relative Humidity [ in % ] 76 60
Mean Vapour Pressure [ in hPa ] 28.3 27.9
Mean Total Clouds [ in okta ] 2.9 3.5
Mean Low Clouds [ in okta ] 1.5 2.1

Parameter SEPTEMBER
Mean Daily Maximum Temperature [ in °C ] 34.1
Mean Daily Minimum Temperature [ in °C ] 25
Mean of Highest Maximum Temperature in the Month [ in °C ] 37.1
Mean of Lowest Minimum Temperature in the Month [ in °C ] 21.9
Mean Monthly Total Rainfall [ in mm ] 128.0
Mean Monthly Rainy Days 5.5
Mean Wind Speed [ in kmph ] 6.6

Parameter SEPTEMBER
Value Date / Year
Extreme Highest Temperature [ in °C ] 40.6 16-09-1938
Extreme Lowest Temperature [ in °C ] 17.3 26-09-1964
Total Rainfall in Wettest Month [ in mm ] 492.3 1900
Total Rainfall in Driest Month [ in mm ] 0.0 ---
Heaviest Rainfall in 24 Hours [ in mm ] 285.2 05-09-1944

Parameter SEPTEMBER
No. Of Days With Precipitation 0.3 mm Or More 7.6
No. Of Days With Hail 0.1
No. Of Days With Thunder 4.1
No. Of Days With Fog 0.2
No. Of Days With Dust Storm 0.0
No. Of Days With Squall 0.6

Parameter SEPTEMBER
03 UTC 12 UTC
No. Of Days With Wind Speed 62 kmph Or More 0 0
No. Of Days With Wind Speed 20 - 61 kmph 1 0
No. Of Days With Wind Speed 1 - 19 kmph 21 24
No. Of Days With Wind Speed 0 i.e. Calm 8 6
No. Of Days (in %) of Wind Direction From North 2 14
No. Of Days (in %) of Wind Direction From North-East 5 9
No. Of Days (in %) of Wind Direction From East 13 12
No. Of Days (in %) of Wind Direction From South-East 9 6
No. Of Days (in %) of Wind Direction From South 2 1
No. Of Days (in %) of Wind Direction From South-West 6 2
No. Of Days (in %) of Wind Direction From West 26 9
No. Of Days (in %) of Wind Direction From North-West 11 28
No. Of Days (in %) of Wind Calm 26 19
No. Of Days With Cloud Amount (All Clouds) 0 oktas 11 6
No. Of Days With Cloud Amount (All Clouds) Trace - 2 oktas 5 6
No. Of Days With Cloud Amount (All Clouds) 3 - 5 oktas 6 9
No. Of Days With Cloud Amount (All Clouds) 6 - 7 oktas 5 7
No. Of Days With Cloud Amount (All Clouds) 8 oktas 3 2
No. Of Days With Low Cloud Amount 0 oktas 15 8
No. Of Days With Low Cloud Amount Trace - 2 oktas 6 9
No. Of Days With Low Cloud Amount 3 - 5 oktas 9 13
No. Of Days With Low Cloud Amount 6 - 7 oktas 0 0
No. Of Days With Low Cloud Amount 8 oktas 0 0
No. Of Days With Low Cloud Amount 8 oktas (Fog) 0 0
No. Of Days With Visibility Upto 1 km 0.1 0.1
No. Of Days With Visibility 1 - 4 km 23.6 17.5
No. Of Days With Visibility 4 - 10 km 6.3 12.3
No. Of Days With Visibility 10 - 20 km 0.0 0.0
No. Of Days With Visibility > 20 km 0.0 0.0