Climate of Delhi

Climate of Delhi
New Delhi
Climate chart (explanation)
J F M A M J J A S O N D
 
 
15
 
21
6
 
 
14
 
24
8
 
 
9.3
 
30
14
 
 
6.1
 
37
20
 
 
19
 
41
24
 
 
54
 
40
28
 
 
241
 
35
26
 
 
284
 
33
25
 
 
119
 
34
23
 
 
17
 
33
18
 
 
6.4
 
28
12
 
 
8.6
 
23
7
Average max. and min. temperatures in °C
Precipitation totals in mm
Source: IMD

The climate of Delhi is a monsoon-influenced humid subtropical climate (Koppen climate classification Cwa) with high variation between summer and winter temperatures and precipitation. Delhi's version of a humid subtropical climate is markedly different from many other humid subtropical cities such as Sao Paulo, Tokyo and Brisbane in that the city features dust storms (something more commonly seen in a desert climate), has relatively dry winters and has a prolonged spell of very hot weather. Summers start in early April and peak in May, with average temperatures near 32oC (90oF), although occasional heat waves can result in highs close to 45oC (114oF) on some days. The monsoon starts in late June and lasts until mid-September, with about 797.3 mm (31.5 inches)[1] of rain. The average temperatures are around 29oC (85oF), although they can vary from around 25oC (78oF) on rainy days to 32oC (90oF) during dry spells. The monsoons recede in late September, and the post-monsoon season continues till late October, with average temperatures sliding from 29oC (85oF) to 21oC (71oF).

Winter starts in November and peaks in January, with average temperatures around 12-13oC (54-55oF). Although winters are generally mild, Delhi's proximity to the Himalayas results in cold waves. Delhi is notorious for its heavy fog during the winter season. In December, reduced visibility leads to disruption of road, air and rail traffic[2]. They end in early February, and are followed by a short spring till the onset of the summer.

Extreme temperatures have ranged from −0.6 °C (30.9 °F) to 47 °C (116.6 °F).[3]

Climate data for Delhi
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average high °C (°F) 21.1
(70.0)
24.2
(75.6)
30.0
(86.0)
36.2
(97.2)
39.6
(103.3)
39.3
(102.7)
35.1
(95.2)
33.3
(91.9)
33.9
(93.0)
32.9
(91.2)
28.3
(82.9)
23.0
(73.4)
31.4
Average low °C (°F) 7.3
(45.1)
10.1
(50.2)
15.4
(59.7)
21.5
(70.7)
25.9
(78.6)
28.3
(82.9)
26.6
(79.9)
25.9
(78.6)
24.4
(75.9)
19.5
(67.1)
12.8
(55.0)
8.2
(46.8)
18.8
Rainfall mm (inches) 20.3
(0.799)
15.0
(0.591)
15.8
(0.622)
6.7
(0.264)
17.5
(0.689)
54.9
(2.161)
231.5
(9.114)
258.7
(10.185)
127.8
(5.031)
36.3
(1.429)
5.0
(0.197)
7.8
(0.307)
797.3
(31.39)
Avg. rainy days 1.7 1.3 1.2 0.9 1.4 3.6 10.0 11.3 5.4 1.6 0.1 0.6 39.1
Sunshine hours 213.9 217.5 238.7 261.0 263.5 198.0 167.4 176.7 219.0 269.7 246.0 217.0 2,688.4
Source no. 1: WMO [4]
Source no. 2: HKO (sun only, 1971–1990) [5]


Notes


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