Kalka experiences a subtropical climate, with a monsoon season from late June to early October. The summer starts in mid-April and temperatures peak during May and June. This is followed by the monsoon season, which is accompanied by a drop in temperature and an increase in humidity. Temperatures remain moderate in October and November, but start falling towards the end of November. Winter lasts through December, January and February, with temperatures lowest in early January. Kalka also receives some rainfall from Western Disturbance, near the end of winter. Winter season, despite being chilly, is mostly free of fog unlike most North Indian cities in the plains.
Transport
Road
Kalka is situated along a slope. This makes it somewhat difficult to commute on foot. Local transport is by shared auto-rickshaws. These autos ply to a distance of around 15–20 km. There are also shared cabs for distances up to 25–30 km. Government and private buses are also very common for commuting to nearby cities. Many intercity govt buses start or pass through Kalka, connecting it with Chandigarh, Ambala, Panipat, Delhi, Shimla and many other cities.
Rail
is the northern terminal of the Delhi-Kalka line of Northern Railway, Indian Rail serving as terminal station for broad gauge line and narrow gauge line. Direct trains on broad gauge, connect to Delhi, Mumbai, Howrah etc.
The Kalka Shimla Railway features on the UNESCO's World Heritage sites list. Work on the railway line started in 1898 and it opened for traffic in 1903.
Demographics
According to 2011 census the population of Kalka is 34,314. Kalka Metropolitan area population is 86,550 which consists of the adjoining cities of Kalka, Pinjore and Parwanoo.
Places of interest
Kalika Devi temple
The ancient temple of the Hindu goddess Kali is situated on the NationalHighway 22 that runs through Kalka town. The temple is visited by devotees who pay their respects annually during the Navratri. According to oral tradition, the original temple was built by Pandavas of Mahabharata of Vedic era during their Agyatvas when they stayed here for some time. Annual religious mela is held in March-April every year.
Shri Trimurtidham Balaji Hanuman Temple
Sri Trimurti Dham is situated amidst the Shivalik Hills. It is located on a hill-top beside the eastern fringe of Kalka village in district. Panchkula overlooking the industrial city Parwanoo. The literal meaning of 'Sri Trimurti Dham' is "a place where Teen Murtis exist together".