Thursday, July 11, 2013
July weather trend in Kathmandu in recent years
July is the wettest month in Kathmandu. Monsoon peaks during this month that brings joy to farmers, and at the same time, it also causes water related disaster in Nepal, where disaster preparedness is virtually nil. Every year, due to floods and landslides caused by monsoon rain incurs damage to large amount of property and causes death of many human lives as well.
This year, the month started with average temperature for the month of July. The average maximum temperature till date is almost in par with the monthly average for the month for last 30 years (viz. 28°C), however, it is about a degree lower than the average maximum for past six years. Whereas, the average monthly minimum temperature for past 30 years and past 6 years are 19°C and 20.5°C respectively.
The month of July in year 2009 was the hottest in recent years, with average maximum temperature at 29.9°C, almost 2degrees higher than the average for the month. In terms of hot days also, July 2009 registered 19days with daily maximum temperature above 30°C. Whereas July 2008 and 2011 saw only 5 and 6 days respectively with temperature above 30°C. July 3rd 2010 was the hottest July day with maximum temperature of 32.4°C.
Average monthly rainfall in Kathmandu in July is 356.5mm. The maximum 24 hours rainfall recorded in July was 177mm in July 3, 2002. 1991 July received only about 50% of the monthly rainfall, with just 190.3mm, whereas, 2003 July is the record wettest month with monthly rain collection of 591.5mm. This year, however, even though Kathmandu is experiencing daily rain pour, the amount of rain collection is lower than normal rain collection pattern for the month in recent years, which is only better than 2007 July. Total rain collection in 2007 July was only 234.5mm.
Below comparison of July 2013 weather trend to past six years trend.
Averages and extremes
Number of warm and cold days
data: Meteorological Forecasting Division, Department of Hydrology and Meteorology, World Meteorological Organization, yalamandu.com
Monthly weather trends in recent years for other months:
Kathmandu Weather Outlook >> Click here
Weather Forecast for next 48 hours
Kathmandu Rainfall watch
Nepal Flood Watch