| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Record high °C (°F) | 32.5 (90.5) |
33.2 (91.8) |
38.1 (100.6) |
41.7 (107.1) |
40.8 (105.4) |
41.9 (107.4) |
40.4 (104.7) |
40.0 (104.0) |
40.1 (104.2) |
36.6 (97.9) |
33.8 (92.8) |
32.6 (90.7) |
41.9 (107.4) |
| Mean maximum °C (°F) | 25.6 (78.1) |
27.9 (82.2) |
32.8 (91.0) |
34.9 (94.8) |
35.3 (95.5) |
36.3 (97.3) |
36.0 (96.8) |
36.7 (98.1) |
35.8 (96.4) |
33.5 (92.3) |
30.4 (86.7) |
27.2 (81.0) |
37.0 (98.6) |
| Mean daily maximum °C (°F) | 22 (72) |
24.5 (76.1) |
29.3 (84.7) |
30.8 (87.4) |
29.9 (85.8) |
29.5 (85.1) |
29.1 (84.4) |
29.6 (85.3) |
29.2 (84.6) |
28.5 (83.3) |
26.3 (79.3) |
23.4 (74.1) |
27.7 (81.8) |
| Mean daily minimum °C (°F) | 10.7 (51.3) |
12.8 (55.0) |
16.1 (61.0) |
19.5 (67.1) |
22.1 (71.8) |
24 (75) |
24.6 (76.3) |
24.6 (76.3) |
23.5 (74.3) |
19.7 (67.5) |
15.2 (59.4) |
11.8 (53.2) |
18.7 (65.7) |
| Mean minimum °C (°F) | 6.9 (44.4) |
7.2 (45.0) |
12.5 (54.5) |
16.5 (61.7) |
18.6 (65.5) |
22.0 (71.6) |
23.4 (74.1) |
23.6 (74.5) |
21.9 (71.4) |
16.8 (62.2) |
11.9 (53.4) |
7.7 (45.9) |
6.5 (43.7) |
| Record low °C (°F) | 1.9 (35.4) |
3.5 (38.3) |
6.2 (43.2) |
9.6 (49.3) |
15.0 (59.0) |
20.0 (68.0) |
21.0 (69.8) |
18.4 (65.1) |
19.8 (67.6) |
12.3 (54.1) |
6.4 (43.5) |
2.4 (36.3) |
1.9 (35.4) |
| Average precipitation mm (inches) | 23 (0.9) |
24 (0.9) |
34 (1.3) |
76 (3.0) |
249 (9.8) |
628 (24.7) |
843 (33.2) |
589 (23.2) |
403 (15.9) |
121 (4.8) |
10 (0.4) |
11 (0.4) |
3,011 (118.5) |
| Average rainy days | 4 | 4 | 5 | 11 | 17 | 20 | 21 | 20 | 18 | 8 | 2 | 2 | 132 |
| Average relative humidity (%) | 69 | 65 | 54 | 63 | 79 | 88 | 90 | 88 | 87 | 80 | 70 | 68 | 75 |
| Average ultraviolet index | 5 | 7 | 9 | 11 | 12 | 13 | 14 | 13 | 11 | 8 | 5 | 4 | 9 |
| Source 1: normal temperatures[1][2]Ultraviolet Index[3] | |||||||||||||
| Source 2: Extremes(India Meteorological Department[4]), Mean maximum and Mean minimum temperatures[5] | |||||||||||||
- ^ "Climate data for Siliguri". en.climate-data.org. Retrieved 8 June 2023.
- ^ "Regional Meteorological Department, Kolkata". Retrieved 7 December 2020.
- ^ "Average UV Index for Siliguri". Retrieved 7 December 2020.
- ^ "Extremes of Temperature & Rainfall for Indian Stations (Up to 2012)" (PDF). India Meteorological Department. December 2016. p. M229. Archived from the original (PDF) on 5 February 2020. Retrieved 21 October 2020.
- ^ "Climate for Siliguri city". Retrieved 3 December 2020.