Climatological Information (1991-2020)

Station : NEW DELHI (PALAM)(42181)
State : DELHI

Parameter SEPTEMBER
03 UTC 12 UTC
Mean Station Level Pressure [ in hPa ] 980 976.9
Mean Dry Bulb Temperature [ in °C ] 27.7 31.9
Mean Wet Bulb Temperature [ in °C ] 24.5 25.4
Mean Relative Humidity [ in % ] 75 59
Mean Vapour Pressure [ in hPa ] 28.2 27.2
Mean Total Clouds [ in okta ] 3.1 3.4
Mean Low Clouds [ in okta ] 1.5 2.2

Parameter SEPTEMBER
Mean Daily Maximum Temperature [ in °C ] 34.4
Mean Daily Minimum Temperature [ in °C ] 24.9
Mean of Highest Maximum Temperature in the Month [ in °C ] 37.8
Mean of Lowest Minimum Temperature in the Month [ in °C ] 21.7
Mean Monthly Total Rainfall [ in mm ] 117.4
Mean Monthly Rainy Days 5.0
Mean Wind Speed [ in kmph ] 5.2

Parameter SEPTEMBER
Value Date / Year
Extreme Highest Temperature [ in °C ] 40.8 26-09-1987
Extreme Lowest Temperature [ in °C ] 13.6 23-09-1972
Total Rainfall in Wettest Month [ in mm ] 347.4 1963
Total Rainfall in Driest Month [ in mm ] 0.2 1968
Heaviest Rainfall in 24 Hours [ in mm ] 190.2 16-09-1963

Parameter SEPTEMBER
No. Of Days With Precipitation 0.3 mm Or More 6.6
No. Of Days With Hail 0.0
No. Of Days With Thunder 4.4
No. Of Days With Fog 0.7
No. Of Days With Dust Storm 0.0
No. Of Days With Squall 0.5

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 1
No. Of Days With Wind Speed 1 - 19 kmph 24 26
No. Of Days With Wind Speed 0 i.e. Calm 5 3
No. Of Days (in %) of Wind Direction From North 2 12
No. Of Days (in %) of Wind Direction From North-East 5 9
No. Of Days (in %) of Wind Direction From East 17 13
No. Of Days (in %) of Wind Direction From South-East 10 7
No. Of Days (in %) of Wind Direction From South 2 1
No. Of Days (in %) of Wind Direction From South-West 11 2
No. Of Days (in %) of Wind Direction From West 30 16
No. Of Days (in %) of Wind Direction From North-West 6 29
No. Of Days (in %) of Wind Calm 17 11
No. Of Days With Cloud Amount (All Clouds) 0 oktas 10 6
No. Of Days With Cloud Amount (All Clouds) Trace - 2 oktas 6 7
No. Of Days With Cloud Amount (All Clouds) 3 - 5 oktas 7 8
No. Of Days With Cloud Amount (All Clouds) 6 - 7 oktas 4 7
No. Of Days With Cloud Amount (All Clouds) 8 oktas 3 2
No. Of Days With Low Cloud Amount 0 oktas 16 8
No. Of Days With Low Cloud Amount Trace - 2 oktas 5 9
No. Of Days With Low Cloud Amount 3 - 5 oktas 8 12
No. Of Days With Low Cloud Amount 6 - 7 oktas 1 1
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 0.2 0.1
No. Of Days With Visibility 1 - 4 km 23.1 10.7
No. Of Days With Visibility 4 - 10 km 6.6 19.1
No. Of Days With Visibility 10 - 20 km 0.1 0.1
No. Of Days With Visibility > 20 km 0.0 0.0