Climate
Pune has a hot semi-arid climate (BSh) bordering with tropical wet and dry (Aw) with average temperatures ranging between 19 to 33 °C (66 to 91 °F). Pune experiences three seasons: summer, monsoon, and winter. Typical summer months are from mid-March to June often extending till 15 June, with maximum temperatures sometimes reaching 42 °C (108 °F). The warmest month in Pune is May; although summer doesn't end until mid-June. The city often receives heavy dusty winds in May (and humidity remains high). Even during the hottest months, the nights are usually cool due to Pune's high altitude. The highest temperature ever recorded was 43.3 °C (109.9 °F) on 30 April 1897.
The monsoon lasts from June to October, with moderate rainfall and temperatures ranging from 22 to 28 °C (72 to 82 °F). Most of the 722 mm (28.43 in) of annual rainfall in the city falls between June and September, and July is the wettest month of the year. Hailstorms are not unheard of in this region.
Winter traditionally begins in November; November in particular is referred to as the Rosy Cold (literal translation) (Marathi: गुलाबी थंडी) which can be experienced typically during the festive season of Diwali. The daytime temperature hovers around 26 °C (79 °F) while night temperature is below 9 °C (48 °F) for most of December and January, often dropping to 5 to 6 °C (41 to 43 °F). The lowest temperature ever recorded was 1.7 °C (35 °F) on 17 January 1935. The climate of Pune has changed during the past 3 decades, especially since the rapid expansion of the industrial belts
| [hide]Climate data for Pune | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 35.3 (95.5) | 38.9 (102) | 42.8 (109) | 43.3 (109.9) | 43.3 (109.9) | 41.7 (107.1) | 36.0 (96.8) | 35.0 (95) | 36.1 (97) | 37.8 (100) | 36.1 (97) | 35.0 (95) | 43.3 (109.9) |
| Average high °C (°F) | 30.3 (86.5) | 32.8 (91) | 36.0 (96.8) | 38.1 (100.6) | 37.2 (99) | 32.1 (89.8) | 28.3 (82.9) | 27.5 (81.5) | 29.3 (84.7) | 31.8 (89.2) | 30.5 (86.9) | 29.6 (85.3) | 32.0 (89.6) |
| Daily mean °C (°F) | 20.5 (68.9) | 22.0 (71.6) | 25.6 (78.1) | 28.8 (83.8) | 29.7 (85.5) | 27.4 (81.3) | 25.3 (77.5) | 24.5 (76.1) | 25.1 (77.2) | 25.0 (77) | 22.3 (72.1) | 20.2 (68.4) | 24.7 (76.46) |
| Average low °C (°F) | 11.4 (52.5) | 12.7 (54.9) | 16.5 (61.7) | 20.7 (69.3) | 22.5 (72.5) | 22.9 (73.2) | 22.0 (71.6) | 21.4 (70.5) | 20.7 (69.3) | 18.8 (65.8) | 14.7 (58.5) | 12.0 (53.6) | 18.0 (64.4) |
| Record low °C (°F) | 1.7 (35.1) | 3.9 (39) | 7.2 (45) | 10.6 (51.1) | 13.8 (56.8) | 17.0 (62.6) | 18.9 (66) | 17.2 (63) | 13.2 (55.8) | 9.4 (48.9) | 4.6 (40.3) | 3.3 (37.9) | 1.7 (35.1) |
| Average precipitation mm (inches) | 0 (0) | 0.5 (0.02) | 5.3 (0.209) | 16.6 (0.654) | 40.6 (1.598) | 116.1 (4.571) | 187.2 (7.37) | 122.3 (4.815) | 120.1 (4.728) | 77.9 (3.067) | 30.2 (1.189) | 4.8 (0.189) | 721.7 (28.413) |
| Average precipitation days | 0.0 | 0.1 | 0.6 | 1.1 | 2.8 | 7.5 | 12.8 | 10.6 | 7.4 | 4.6 | 2.0 | 0.4 | 49.9 |
| Average relative humidity (%) | 56 | 46 | 36 | 36 | 48 | 70 | 79 | 82 | 78 | 64 | 58 | 58 | 59.3 |
| Mean monthly sunshine hours | 291.4 | 282.8 | 300.7 | 303.0 | 316.2 | 186.0 | 120.9 | 111.6 | 177.0 | 248.0 | 270.0 | 288.3 | 2,895.9 |
| Source #1: Temperature and Precipitation: IMD (1951–1980)[ | |||||||||||||
| Source #2: Sun hours and Humidity: NOAA (1971–1990)[ | |||||||||||||
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