Weather forecast for Heilongjiang Province 20 1 1

It is estimated that the general climate trend from March to 10 this year: the temperature is slightly higher than normal, and the precipitation is close to normal.

The normal temperature in spring is slightly higher, the early cooling process is obvious, and the final frost is normal earlier; Summer temperature is normal, slightly higher; The temperature is slightly higher in autumn, and the first frost is slightly later.

The precipitation in spring is normal, with more in the first spring and less in the second spring. Summer precipitation is normal, slightly less; There is less precipitation in autumn.

Main meteorological disasters: drought in late spring and early summer, local floods and staged low temperature in late summer.

First, the temperature forecast

The temperature in spring (March-May) is on the high side, and the average temperature is estimated to be around 7.0℃, which is 2.9℃ higher than the same period of last year. The temperature was slightly higher in March, with an average temperature of around -5.0℃, which was 0.2℃ lower than the same period of last year. The temperature in April is slightly higher, and the average temperature is expected to be around 9.0℃, which is 2.8℃ higher than the same period of last year. The temperature in may is on the high side, and the average temperature is expected to be about.

The temperature is slightly higher in summer (June-August), and the average temperature is estimated to be about 265438 0.3℃, which is 0.2℃ higher than the same period of last year. The temperature in June is slightly higher, with an average temperature of about 20.0℃, which is 0.4℃ higher than the same period of last year. The temperature in July is slightly higher, and the average temperature is expected to be around 23.0℃, which is 0.2℃ higher than the same period of last year. The temperature in August is slightly higher, and the average temperature is estimated to be about 265,438 0.0℃, which is 0.2℃ higher than the same period of last year.

The temperature is slightly higher in autumn (September ~ 65438+1October). It is estimated that the average temperature is about 10.0℃, which is 0.6℃ higher than the same period of last year. Among them, the temperature in September is slightly higher, and the average temperature is about 14.0℃, which is the same as the same period of previous years. In June, the temperature was slightly higher at 5438+00, and the estimated average temperature was about 6.0℃, which was higher than normal 1.2℃.

Second, the precipitation forecast

The precipitation in spring is normal, and the estimated precipitation is about 90.0mm, which is the same as the same period of last year. Among them, the precipitation in March is slightly normal, and the estimated precipitation is about 10.0mm, which is 9% more than the same period in previous years; The precipitation in April is slightly less, and the estimated precipitation is about 20.0mm, which is less than the same period in previous years13%; There is a little more precipitation in May, and the estimated precipitation is about 60.0 mm, which is 3% more than the same period of previous years.

The precipitation in summer is slightly less than normal, and the estimated precipitation is about 370.0mm, which is 7% less than the same period of last year. Among them, there is more precipitation in June, and the estimated precipitation is about 120.0mm, which is 22% more than the same period in previous years. The precipitation in July is about 140.0mm, which is 25% less than the same period of previous years. The estimated precipitation in August is about 1 10.0mm, which is 65438 less than the same period of previous years.

There is a little less precipitation in autumn, and the estimated precipitation is about 100.0mm, which is 3% more than the same period of last year. There is a little more precipitation in September, the precipitation is about 70.0mm, which is 1 1% less than that in the same period of last year. In June, there is a little less precipitation at 5438+00, and the estimated precipitation is about 30.0mm, which is 12% less than that in the same period of last year.

Main precipitation processes in March: 18 ~ 20, 28 ~ 29.

Three, strong wind (above 8) day forecast

There are few windy days in spring. It is estimated that the number of windy days is about 9 days, which is about 3 days less than the same period of last year. The number of windy days in March is normal, about 3 days, which is the same as the same period of last year. The number of windy days in April is about 2 days, about 4 days less than the same period of last year. The number of windy days in May is about 4 days, which is the same as the same period of last year.

The number of windy days in summer is normal, and the number of windy days in June is normal, about 1 day, which is the same as the same period of last year. The number of windy days in July is about 1 day, which is the same as the same period of last year. The number of windy days in August is about 1 day, which is the same as the same period of last year.

There are fewer windy days in autumn, about 1 day, which is about 1 day less than the same period of last year.

Four, the final frost and early frost forecast

The final frost was earlier, and it is expected to appear around May 13, about 2 days earlier than in previous years. The first frost is generally a little late, appearing around September 24th, which is about 1 day later than in previous years.

Verb (abbreviation of verb) suggestion

1, the precipitation in spring and summer is close to normal, but the temporal and spatial distribution is uneven, and periodic droughts and floods are prominent. Relevant departments should raise awareness of prevention as soon as possible, do a good job in drought relief in late spring and early summer, and prevent short-term floods, flash floods, mudslides, hail and other disasters caused by local heavy precipitation in rainy season.

2. The heat in the growing season this year is less than that in 2008 and 2007, but more than that in 2009. There may be a staged low temperature in August. It is suggested that relevant departments should arrange agricultural production reasonably, do a good job in seed selection and early maturity promotion, and make up for the lack of heat in the later period to affect crop yield.